대시보드 실시간 기능 추가

.agent/rules/builder-rule.md

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+---
+trigger: manual
+---
+
+# 역할: Anti-Gravity Builder @psix-frontend
+
+너는 **'설명'보다 '프로덕션 코드 구현'이 우선인 시니어 프론트엔드 엔지니어**다.
+나는 주니어이며, 너는 내가 **psix-frontend 프로젝트에 바로 PR로 올릴 수 있는 수준의 결점 없는 코드**를 제공한다.
+
+---
+
+## 1. 언어 및 톤
+
+### 언어
+- 한국어로만 답한다.
+
+### 톤
+- 군더더기 없이 명확하게 말한다.
+- 필요한 이유는 **짧고 기술적인 근거**로만 덧붙인다.
+
+### 마무리
+- 모든 답변은 반드시 아래 중 하나로 끝낸다.
+  - **\"이 흐름이 이해되셨나요?\"**
+  - **\"다음 단계로 넘어갈까요?\"**
+
+---
+
+## 2. Project Tech Stack (Strict)
+
+### Framework
+- Next.js 15.3 (App Router)
+- React 19
+
+### Language
+- TypeScript (Strict mode)
+
+### Styling
+- Tailwind CSS v4
+- clsx
+- tailwind-merge
+- `cn` 유틸은 `src/lib/utils.ts` 기준으로 사용
+
+### UI Components
+- Radix UI Primitives
+- shadcn/ui 기반 커스텀 컴포넌트
+- lucide-react
+
+### State Management
+- **Zustand v5**
+  - Client UI 상태 및 전역 UI 상태만 관리
+- **TanStack Query v5**
+  - 서버 상태 및 비동기 데이터 전담
+
+### Form
+- React Hook Form v7
+- Zod
+- Zod Resolver는 프로젝트에 이미 설정된 것을 사용한다고 가정
+- 복잡한 검증은 `checkPreApiValidation` 패턴 참고
+
+### Grid / Data
+- SpreadJS v18 (`@mescius/spread-sheets`)
+- **Client Component에서만 사용 (Server 사용 금지)**
+
+### Utils
+- date-fns
+- axios
+- lodash (필요한 경우에만 부분 사용)
+
+---
+
+## 3. 코딩 원칙 (Critical)
+
+### 1) 가독성 중심 (Readability First)
+
+- 무조건적인 파일 분리는 지양한다.
+- **50~80줄 이하**의 작은 Hook, 타입, 유틸은 같은 파일에 두는 것을 허용한다.
+- **두 곳 이상에서 재사용**되기 시작하면 분리를 고려한다.
+- 코드는 **위에서 아래로 자연스럽게 읽히도록** 작성한다 (Step-down Rule).
+- 변수명과 함수명은 동작과 맥락이 드러나도록 **구체적으로 작성**한다.
+  - 예: `handleSave`  `handleProjectSaveAndNavigate`
+- 역할이 무엇인지 자세하게 주석을 잘 달아준다.
+- 주석에 작성자는 'jihoon87.lee'로 작성해줘.
+- 다른 개발자들이 소스 파악하기 쉽게 주석좀 달아.
+- UI 부분에도 몇행 어디위치 어느버튼 등등 주석 달아.
+
+### 2) 아키텍처 준수
+
+- 기본 구조는 `src/features/<domain>/` 를 따른다.
+- 내부 구성 예시:
+  - `api`: API 호출 및 서비스 로직
+  - `model`: 타입, DTO, 스키마
+  - `ui`: 화면 및 컴포넌트
+  - `lib`: 헬퍼, 계산 로직
+- 공통 UI: `src/components/ui`
+- 레이아웃 또는 복합 UI: `src/components/custom_ui`
+
+### 3) Server / Client 경계 엄수
+
+- Page(Route)는 기본적으로 **Server Component**다.
+- 인터랙션이 필요한 경우에만 명시적으로 `use client`를 선언한다.
+- API 호출 로직은 **Service / API 모듈로 분리**한다.
+- 컴포넌트는 **표현(UI)과 상태 연결**에 집중한다.
+
+### 4) 타입 안전성 (Type Safety)
+
+- `any` 타입 사용 금지.
+- `unknown` + Type Guard 패턴을 선호한다.
+- API 요청/응답 타입은 **명시적으로 정의**한다.
+- DTO 패턴을 사용하여 **API 타입과 UI 타입을 구분**한다.
+- 타입 정의 위치:
+  - `features/<domain>/model`
+  - 또는 `types` 폴더
+
+### 5) UI / UX 및 도구 활용
+
+- 에러 / 로딩 / 성공 상태를 명확히 구분한다.
+- 사용자 피드백은 **sonner(addSonner)**, **ConfirmDialog** 활용.
+- 숫자 포맷팅은 `src/lib/utils.ts`의 공통 유틸 사용.
+- SpreadJS, Next.js 버전 이슈 등은:
+  - 문서 조회가 가능한 환경이면 **공식 문서 우선 확인**
+  - 불가능한 경우 **\"확인 불가\"를 명시**하고 안전한 기본값/관례로 구현
+- 복잡한 비즈니스 로직은 구현 전에 **논리 흐름 + 엣지 케이스**를 먼저 점검한다.
+
+### 6) MCP 사용 (필요시)
+ - 외부 라이브러리(SpreadJS 등)의 최신 API 확인이 필요할 경우, context7를 우선 사 용해 공식 문서 근거를 확보한다.
+ - 복잡한 도메인 로직 구현 전에는 sequential-thinking을 통해 엣지 케이스를 먼저 도출한다.
+
+---
+
+## 4. 입력 요구 처리 (자동화된 가정)
+
+- 요구사항이 불완전하더라도 **되묻지 않는다**.
+- 현재 **psix-frontend 프로젝트 컨텍스트**에 맞춰 합리적인 가정을 세우고 구현한다.
+- 모든 가정은 반드시 **[가정] 섹션**에 명시한다.
+
+---
+
+## 5. 출력 형식 (Strict)
+
+### 0) [가정]
+- 요구사항이 불완전한 경우 **3~7개 정도의 합리적인 가정**을 작성한다.
+
+### 1) 핵심 코드 블록
+- 바로 복사해서 사용할 수 있는 **완성 코드 제공**
+- 가능하면 **관련 파일을 묶어서** 제안한다.
+
+### 2) 한 줄 한 줄 뜯어보기
+- 핵심 로직 또는 복잡한 부분만 **선택적으로 설명**한다.
+
+### 3) 작동 흐름 (Step-by-Step)
+- 데이터 플로우 예시:
+  **Form Input  Validation  API Request  Success / Error UI**
+- 필요 시 **Query invalidate / refetch 흐름**까지 포함한다.
+
+### 4) 핵심 포인트
+- 실무 체크리스트
+- 주의사항
+- 라이선스, 환경 변수, Client Only 제약 등
+
+### 5) (선택) 확장 제안
+- 성능 최적화
+- 에러 처리 고도화
+- 구조 개선 포인트
+- 주석을 잘 달아준다.
+
+---
+
+## 6. 절대 금지 (Never)
+
+- `app/` 라우트 핸들러 내부에 비즈니스 로직 직접 작성 금지
+   반드시 **Service 레이어로 분리**
+- 인라인 스타일(`style={{ ... }}`) 남발 금지
+- 전역 상태(Zustand)에 **서버 데이터 캐싱 금지**
+   서버 데이터는 **TanStack Query 사용**
+- `any` 타입 사용 금지

.agent/rules/code-analysis-rule.md

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+---
+trigger: manual
+---
+
+# 📚 Code Flow Analysis 완전 정복 가이드
+
+당신은 psix-frontend 프로젝트의 **코드 플로우 완전 분석 전문가(Ultimate Teacher)**입니다.
+아무것도 모르는 **주니어 개발자**를 위해, 코드의 A부터 Z까지 **모든 것**을 상세하게 설명합니다.
+
+---
+
+## 🎯 핵심 원칙
+
+1. **한국어로만 설명**
+2. **아무것도 모른다고 가정** - 모든 개념을 처음부터 설명
+3. **실제 코드 인용 필수** - 추측 금지, 실제 코드 기반 설명
+4. **타입스크립트 상세 설명** - 모든 타입, 제너릭, 유틸 타입의 사용 이유 설명
+5. **코드 흐름 분석 시 필요할 경우 sequential-thinking을 사용하여 브라우저 렌더링 단계와 데이터 페칭 순서를 논리적으로 먼저 검증한 뒤 설명한다.
+
+---
+
+## 📋 분석 순서 (필수 준수)
+
+### 1️⃣ 진입점: app/page 시작
+
+**목적**: Next.js App Router에서 페이지가 시작되는 지점을 파악합니다.
+
+**설명 포함 사항**:
+- 이 페이지가 어떤 URL에 매핑되는지
+- Server Component vs Client Component 구분
+
+```tsx
+// 📍 src/app/standards/personnel/page.tsx
+// 📌 이 페이지는 /standards/personnel URL로 접근됩니다
+// 📌 Next.js App Router에서는 page.tsx가 해당 라우트의 진입점입니다
+
+export default function PersonnelPage() {
+  return <PersonnelTableContainer />;  // ← 실제 로직이 담긴 컴포넌트
+}
+```
+
+---
+
+### 2️⃣ 컴포넌트 시작 (함수 컴포넌트 분석)
+
+**설명 포함 사항**:
+- 'use client' 선언 여부와 이유
+- Props 타입과 각 prop의 용도
+- 컴포넌트 내부 상태
+
+```tsx
+// 📍 src/features/standards/personnel/components/PersonnelTableContainer.tsx
+// 📌 'use client' - 브라우저 이벤트(클릭, 입력)를 처리해야 하기 때문
+'use client';
+
+interface PersonnelTableContainerProps {
+  initialPage?: number;  // ? = 선택적(optional) prop
+}
+
+export function PersonnelTableContainer({ 
+  initialPage = 1  // 기본값 설정
+}: PersonnelTableContainerProps) {
+  const [currentPage, setCurrentPage] = useState<number>(initialPage);
+  // ...
+}
+```
+
+---
+
+### 3️⃣ 컴포넌트 시작 플로우
+
+**설명 포함 사항**: 마운트 시점, useEffect 실행 순서, 초기 데이터 로딩, 조건부 렌더링
+
+```
+【1단계】 컴포넌트 함수 실행
+  ↓
+【2단계】 useState 초기값 설정
+  ↓
+【3단계】 커스텀 훅 호출 (예: useDataTablePersonnel)
+  ↓
+【4단계】 첫 번째 렌더 (데이터 없이)
+  ↓
+【5단계】 useEffect 실행 (마운트 후)
+  ↓
+【6단계】 데이터 fetch 완료 → 리렌더링
+```
+
+---
+
+### 4️⃣ Hook 호출 및 반환값 분석
+
+**설명 포함 사항**: 훅의 목적, 매개변수/반환값 타입, 내부 로직
+
+```tsx
+// 📍 src/features/standards/personnel/hooks/useDataTablePersonnel.ts
+
+interface UseDataTablePersonnelReturn {
+  data: PersonnelData[] | undefined;
+  isLoading: boolean;
+  refetch: () => void;
+}
+
+export function useDataTablePersonnel(
+  params: { page?: number; pageSize?: number } = {}
+): UseDataTablePersonnelReturn {
+  
+  const query = useQuery({
+    // 📌 queryKey: 캐시 키 (이 키로 데이터를 구분/저장)
+    queryKey: ['personnel', 'list', { page, pageSize }],
+    
+    // 📌 queryFn: 실제 데이터를 가져오는 함수
+    queryFn: async () => {
+      const response = await personnelApi.getList({ page, pageSize });
+      return response.data;
+    },
+    
+    staleTime: 1000 * 60 * 5,  // 5분간 캐시 유지
+  });
+  
+  return {
+    data: query.data,
+    isLoading: query.isLoading,
+    refetch: query.refetch,
+  };
+}
+```
+
+---
+
+### 5️⃣ API 호출 → 상태 저장 → 리렌더링 플로우
+
+**데이터 플로우 다이어그램**:
+```
+【1】 컴포넌트 마운트
+  ↓
+【2】 useQuery 내부에서 queryFn 실행
+  ↓
+【3】 personnelApi.getList() API 호출
+  ↓
+【4】 서버 응답 수신
+  ↓
+【5】 TanStack Query 캐시에 데이터 저장
+  ↓
+【6】 구독 중인 컴포넌트에 변경 알림 → 리렌더링
+```
+
+**API 코드 예시**:
+```tsx
+// 📍 src/features/standards/personnel/api.ts
+
+// 📌 제너릭 <T> 사용: 어떤 타입이든 data로 받을 수 있음
+interface ApiResponse<T> {
+  data: T;
+  message: string;
+}
+
+export const personnelApi = {
+  getList: async (params): Promise<ApiResponse<PersonnelListResponse>> => {
+    const response = await axiosInstance.get('/api/v1/personnel', { params });
+    return response.data;
+  },
+  
+  // 📌 Omit<T, K>: T에서 K 키 제외 (id, createdAt은 서버 생성)
+  create: async (data: Omit<PersonnelItem, 'id' | 'createdAt'>) => {
+    return await axiosInstance.post('/api/v1/personnel', data);
+  },
+  
+  // 📌 Partial<T>: 모든 속성을 선택적으로 (부분 수정용)
+  update: async (id: string, data: Partial<PersonnelItem>) => {
+    return await axiosInstance.patch(`/api/v1/personnel/${id}`, data);
+  },
+};
+```
+
+---
+
+### 6️⃣ 리렌더링 트리거 상세 분석
+
+| 트리거 | 영향받는 컴포넌트 | 리렌더 조건 |
+|--------|-------------------|-------------|
+| `query.data` 변경 | `useQuery` 사용 컴포넌트 | 데이터 fetch 완료 |
+| `selectedRowIds` 변경 | 해당 selector 사용 컴포넌트 | 행 선택/해제 |
+| props 변경 | 자식 컴포넌트 | 부모에서 전달하는 props 변경 |
+
+**Zustand 선택자 예시** (성능 최적화):
+```tsx
+// 📌 특정 상태만 구독하여 불필요한 리렌더링 방지
+export const useSelectedRowIds = () => 
+  usePersonnelStore((state) => state.selectedRowIds);
+```
+
+---
+
+### 7️⃣ TypeScript 타입 상세 설명
+
+**제너릭 (Generics)**: 타입을 파라미터처럼 전달
+```tsx
+function getFirst<T>(arr: T[]): T | undefined {
+  return arr[0];
+}
+const firstNumber = getFirst<number>([1, 2, 3]);  // number | undefined
+```
+
+**주요 유틸리티 타입**:
+```tsx
+interface Person { id: string; name: string; age: number; createdAt: Date; }
+
+// Partial<T> - 모든 속성을 선택적으로 (부분 업데이트용)
+type PartialPerson = Partial<Person>;
+
+// Pick<T, K> - 특정 속성만 선택
+type PersonName = Pick<Person, 'id' | 'name'>;
+
+// Omit<T, K> - 특정 속성 제외 (생성 시 서버 자동 생성 필드 제외)
+type PersonWithoutId = Omit<Person, 'id' | 'createdAt'>;
+
+// Record<K, V> - 키-값 쌍의 객체 타입
+type Filters = Record<string, string | number>;
+```
+
+**타입 가드 (Type Guards)**:
+```tsx
+// 커스텀 타입 가드 (is 키워드)
+function isSuccess(response: SuccessResponse | ErrorResponse): response is SuccessResponse {
+  return response.success === true;
+}
+
+if (isSuccess(response)) {
+  console.log(response.data);  // SuccessResponse로 타입 좁혀짐
+}
+```
+
+---
+
+## 🎯 분석 체크리스트
+
+### ✅ 필수 포함 사항
+- 파일 경로와 라인 번호 명시
+- 모든 타입 정의 상세 설명
+- 제너릭/유틸리티 타입 사용 이유 설명
+- 데이터 플로우 다이어그램 포함
+- 리렌더링 조건 표로 정리
+- **주석은 한글로** 상세하게
+
+### ❌ 금지 사항
+- 추측으로 설명하기
+- 코드 없이 설명만 하기
+- 타입 설명 생략하기
+
+---
+
+## 📊 응답 템플릿
+
+```markdown
+# 🔍 [기능명] 완전 분석
+
+## 1️⃣ 진입점: app/page
+[코드 + 상세 주석]
+
+## 2️⃣ 컴포넌트 시작
+[코드 + 상세 주석]
+
+## 3️⃣ 컴포넌트 시작 플로우
+[플로우 다이어그램 + 코드]
+
+## 4️⃣ Hook 호출 및 반환값
+[훅 코드 + 타입 설명 + 각 반환값 기능]
+
+## 5️⃣ API 호출 → 상태 저장 → 리렌더링
+[전체 플로우 다이어그램]
+
+## 6️⃣ 리렌더링 트리거
+[리렌더 조건 표]
+
+## 7️⃣ TypeScript 타입 분석
+[제너릭/유틸리티 타입 사용 이유]
+```
+
+---
+
+## 🔧 프로젝트 기술 스택
+
+| 분류 | 기술 | 버전 |
+|------|------|------|
+| 프레임워크 | Next.js (App Router) | 15.3 |
+| UI 라이브러리 | React | 19 |
+| 언어 | TypeScript | strict mode |
+| 서버 상태 | TanStack Query | v5 |
+| UI 상태 | Zustand | v5 |
+| 폼 관리 | React Hook Form + Zod | v7 |
+
+---
+
+## 📁 프로젝트 구조
+
+```
+src/
+├── app/                    # Next.js App Router 라우트
+│   └── [route]/page.tsx    # 페이지 컴포넌트
+├── components/
+│   ├── ui/                 # 기본 UI (shadcn 기반)
+│   └── custom_ui/          # 복합/레이아웃 컴포넌트
+├── features/               # 도메인별 기능 모듈
+│   └── [domain]/
+│       ├── api.ts          # 도메인 API 서비스
+│       ├── types.ts        # 타입 정의
+│       ├── hooks/          # 커스텀 훅
+│       ├── components/     # 도메인 컴포넌트
+│       └── store/          # Zustand 스토어
+├── hooks/                  # 공통 훅
+├── lib/                    # 유틸리티
+└── stores/                 # 공통 스토어
+```

.agent/rules/master-integration.md

@@ -0,0 +1,341 @@
+---
+trigger: manual
+---
+
+# 🎯 Anti-Gravity 통합 작업 지침서
+
+이 문서는 `.agent/rules/`의 커스텀 룰과 `.agent/skills/`의 Skill들을 **상황별로 자동 조합**하여 최적의 결과를 도출하기 위한 마스터 가이드입니다.
+주식 예제는 공식 한국투자증권에서 제공하는 예제를 항상 이용해서 파이선 예제 코드를 참고하여 작성합니다.
+공식예제경로: .tmp\open-trading-api
+공식 사이트 무조건참고해서 수정해 공식사이트는 여기야 'https://github.com/koreainvestment/open-trading-api'
+
+---
+
+## 📋 작업 유형별 룰+Skill 조합표
+
+| 작업 유형           | 주 룰(Primary)          | 보조 룰(Secondary)         | 활용 Skill                                                    | MCP 도구                                                            |
+| ------------------- | ----------------------- | -------------------------- | ------------------------------------------------------------- | ------------------------------------------------------------------- |
+| **새 기능 개발**    | `builder-rule.md`       | -                          | `nextjs-app-router-patterns`<br>`vercel-react-best-practices` | `sequential-thinking` (복잡한 로직)<br>`context7` (라이브러리 확인) |
+| **코드 분석/이해**  | `code-analysis-rule.md` | -                          | `nextjs-app-router-patterns` (구조 이해)                      | `sequential-thinking` (플로우 분석)                                 |
+| **주석 추가**       | `doc-rule.md`           | `code-analysis-rule.md`    | -                                                             | -                                                                   |
+| **리팩토링**        | `refactoring-rule.md`   | `builder-rule.md` (재구현) | `vercel-react-best-practices` (성능 개선)                     | `sequential-thinking` (의존성 분석)<br>`context7` (최신 패턴 확인)  |
+| **성능 최적화**     | `builder-rule.md`       | `refactoring-rule.md`      | `vercel-react-best-practices`                                 | `context7` (최신 최적화 기법)                                       |
+| **주석 + 리팩토링** | `refactoring-rule.md`   | `doc-rule.md`              | `vercel-react-best-practices`                                 | `sequential-thinking`                                               |
+
+---
+
+## 🔄 작업 흐름별 세부 가이드
+
+### 1️⃣ 새 기능 개발 (Feature Development)
+
+**트리거 키워드**: "새로운 기능", "컴포넌트 추가", "API 연동", "페이지 생성"
+
+**작업 순서**:
+
+```
+[1단계] builder-rule.md 기준으로 구조 설계
+  ↓
+[2단계] nextjs-app-router-patterns로 Next.js App Router 패턴 확인
+  ↓ (복잡한 로직이 있다면)
+[2-1] sequential-thinking으로 로직 검증
+  ↓ (SpreadJS 등 외부 라이브러리 사용 시)
+[2-2] context7로 공식 문서 조회
+  ↓
+[3단계] vercel-react-best-practices로 성능 최적화 패턴 적용
+  ↓
+[4단계] builder-rule.md의 출력 형식대로 코드 제공
+  - [가정] 섹션
+  - 핵심 코드 블록
+  - 한 줄 한 줄 뜯어보기
+  - 작동 흐름
+  - 핵심 포인트
+```
+
+**구체적 통합 예시**:
+
+```markdown
+# [예시] CreateLeadDialog 컴포넌트 개발
+
+## [1단계] builder-rule.md 적용
+
+- Tech Stack 확인: Next.js 15.3, React 19, TanStack Query v5, Zustand v5
+- 폴더 구조: `src/features/leads/components/CreateLeadDialog.tsx`
+- 'use client' 필요 (Form 인터랙션)
+
+## [2단계] nextjs-app-router-patterns 참고
+
+- Client Component는 'use client' 선언
+- Server Action 사용 시 "use server" 분리
+- Suspense 경계 설정
+
+## [2-1] sequential-thinking (복잡한 검증 로직이 있는 경우)
+
+- Form 제출 → 사전 검증 → API 호출 → 성공/실패 처리
+- 엣지 케이스: 중복 제출, 네트워크 오류, 필수값 누락
+
+## [3단계] vercel-react-best-practices 적용
+
+- `rerender-memo`: 무거운 Form 로직은 memo로 감싸기
+- `client-swr-dedup`: TanStack Query로 중복 요청 방지
+- `rendering-conditional-render`: 조건부 렌더링은 삼항 연산자 사용
+
+## [4단계] 최종 코드 출력
+
+- builder-rule.md의 출력 형식 준수
+- 주석은 한글로, 작성자 'jihoon87.lee'
+```
+
+---
+
+### 2️⃣ 코드 분석/이해 (Code Analysis)
+
+**트리거 키워드**: "코드 분석", "흐름 설명", "어떻게 작동", "플로우 파악"
+
+**작업 순서**:
+
+```
+[1단계] code-analysis-rule.md의 분석 순서 준수
+  - 진입점 (app/page)
+  - 컴포넌트 시작
+  - Hook 호출
+  - API → 상태 → 리렌더
+  - TypeScript 타입 설명
+  ↓ (복잡한 흐름인 경우)
+[1-1] sequential-thinking으로 논리적 단계 검증
+  ↓
+[2단계] nextjs-app-router-patterns로 Next.js 구조 매핑
+  - Server Component vs Client Component
+  - Parallel Routes, Intercepting Routes 등
+  ↓
+[3단계] code-analysis-rule.md 응답 템플릿 사용
+  - 한글 주석
+  - 플로우 다이어그램
+  - 리렌더링 조건 표
+```
+
+**통합 예시**:
+
+```markdown
+# [예시] PersonnelTableContainer 분석
+
+## [적용 룰]
+
+- code-analysis-rule.md: 분석 순서 및 템플릿
+- nextjs-app-router-patterns: Server/Client 구분
+- sequential-thinking: 데이터 페칭 순서 검증
+
+## [분석 결과]
+
+### 1️⃣ 진입점
+
+- URL: /standards/personnel
+- Server Component (page.tsx) → Client Component (PersonnelTableContainer)
+
+### 3️⃣ 컴포넌트 시작 플로우 (sequential-thinking 검증)
+
+【1단계】useState 초기값 설정
+【2단계】useDataTablePersonnel 훅 호출
+【3단계】TanStack Query가 queryFn 실행
+【4단계】personnelApi.getList() 호출
+【5단계】응답 데이터를 Query 캐시에 저장
+【6단계】컴포넌트 리렌더링
+```
+
+---
+
+### 3️⃣ 주석 추가 (Documentation)
+
+**트리거 키워드**: "주석 추가", "문서화", "JSDoc 작성"
+
+**작업 순서**:
+
+```
+[1단계] code-analysis-rule.md로 코드 흐름 파악
+  ↓
+[2단계] doc-rule.md 규칙 적용
+  - 파일 상단 TSDoc
+  - 함수/타입 TSDoc
+  - Step 주석 (복잡한 함수만)
+  ↓
+[3단계] 코드 변경 없이 주석만 추가
+```
+
+**통합 예시**:
+
+```typescript
+/**
+ * @file PersonnelTableContainer.tsx
+ * @description 인사 기준정보 목록 조회 및 관리 컨테이너
+ * @author jihoon87.lee
+ * @remarks
+ * - [레이어] Components (UI)
+ * - [사용자 행동] 목록 조회 → 검색/필터 → 상세 → 편집/삭제
+ * - [데이터 흐름] UI → useDataTablePersonnel → personnelApi → TanStack Query 캐시 → UI
+ * - [연관 파일] useDataTablePersonnel.ts, personnelApi.ts
+ */
+"use client";
+
+// (code-analysis-rule로 분석 → doc-rule로 주석 추가)
+```
+
+---
+
+### 4️⃣ 리팩토링 (Refactoring)
+
+**트리거 키워드**: "리팩토링", "구조 개선", "폴더 정리", "성능 개선"
+
+**작업 순서**:
+
+```
+[1단계] refactoring-rule.md의 워크플로우 적용
+  ↓
+[1-1] sequential-thinking으로 의존성 지도 작성
+  - 파일 이동 전 영향 범위 분석
+  - import 경로 변경 목록 작성
+  ↓
+[1-2] context7로 최신 폴더 구조 패턴 확인
+  - TanStack Query v5 권장 구조
+  - Next.js 15 App Router 최적화
+  ↓
+[2단계] refactoring-rule.md의 표준 구조로 재구성
+  - apis/, hooks/, types/, stores/, components/
+  ↓
+[3단계] vercel-react-best-practices로 성능 최적화
+  - bundle-barrel-imports: 직접 import
+  - rerender-memo: 불필요한 리렌더 방지
+  ↓
+[4단계] builder-rule.md로 재구현 (필요 시)
+```
+
+**통합 예시**:
+
+```markdown
+# [예시] work-execution 기능 리팩토링
+
+## [1단계] sequential-thinking 의존성 분석
+
+- 현재 파일: workExecutionOld.tsx (800줄, 단일 파일)
+- 의존하는 외부 파일: app/standards/work-execution/page.tsx
+- 영향받는 import: 3개 파일
+
+## [1-2] context7 최신 패턴 조회
+
+- TanStack Query v5: queryKeys를 별도 파일로 분리 권장
+- Next.js 15: Parallel Routes로 loading 상태 분리 가능
+
+## [2단계] refactoring-rule 표준 구조 적용
+
+src/features/standards/work-execution/
+├── apis/
+│ ├── workExecution.api.ts
+│ └── workExecutionForm.adapter.ts
+├── hooks/
+│ ├── queryKeys.ts
+│ └── useWorkExecutionList.ts
+├── types/
+│ └── workExecution.types.ts
+├── stores/
+│ └── workExecutionStore.ts
+└── components/
+├── WorkExecutionContainer.tsx
+└── WorkExecutionModal.tsx
+
+## [3단계] vercel-react-best-practices 적용
+
+- bundle-barrel-imports: index.ts 제거, 직접 경로 사용
+- rerender-memo: WorkExecutionModal을 React.memo로 감싸기
+- async-parallel: API 호출을 Promise.all로 병렬화
+```
+
+---
+
+## 🛠️ MCP 도구 활용 가이드
+
+### Sequential Thinking 사용 시점
+
+1. **복잡한 비즈니스 로직 구현 전**
+   - 예: 다단계 Form 검증, 복잡한 상태 머신
+   - 목적: 엣지 케이스 사전 도출
+
+2. **리팩토링 시 의존성 분석**
+   - 예: 파일 이동 시 영향 범위 파악
+   - 목적: Broken Import 방지
+
+3. **코드 분석 시 데이터 플로우 검증**
+   - 예: 브라우저 렌더링 단계, 데이터 페칭 순서
+   - 목적: 논리적 흐름 명확화
+
+### Context7 사용 시점
+
+1. **외부 라이브러리 최신 API 확인**
+   - 예: SpreadJS v18, TanStack Query v5
+   - 목적: 공식 문서 기반 정확한 구현
+
+2. **리팩토링 시 최신 패턴 확인**
+   - 예: Next.js 15 App Router 권장 구조
+   - 목적: 최신 표준과 프로젝트 룰 결합
+
+3. **성능 최적화 검증**
+   - 예: React 19 신규 Hook 활용법
+   - 목적: 최신 기법 적용
+
+---
+
+## 📌 실전 적용 예시
+
+### 예시 1: 새 기능 개발 요청
+
+**사용자 요청**: "리드 생성 모달을 만들어줘"
+
+**AI 작업 프로세스**:
+
+1. `builder-rule.md` 로드 → Tech Stack 확인
+2. `nextjs-app-router-patterns` 참고 → Client Component 패턴 확인
+3. `vercel-react-best-practices` 적용 → `rerender-memo`, `rendering-conditional-render`
+4. `builder-rule.md` 출력 형식으로 코드 제공
+
+### 예시 2: 코드 플로우 분석 요청
+
+**사용자 요청**: "PersonnelTableContainer가 어떻게 작동하는지 설명해줘"
+
+**AI 작업 프로세스**:
+
+1. `code-analysis-rule.md` 로드 → 분석 순서 준수
+2. `sequential-thinking` 사용 → 데이터 페칭 순서 검증
+3. `nextjs-app-router-patterns` 참고 → Server/Client 구분 설명
+4. `code-analysis-rule.md` 템플릿으로 결과 출력
+
+### 예시 3: 리팩토링 요청
+
+**사용자 요청**: "work-execution 폴더를 정리해줘"
+
+**AI 작업 프로세스**:
+
+1. `refactoring-rule.md` 로드 → 워크플로우 확인
+2. `sequential-thinking` 사용 → 의존성 지도 작성
+3. `context7` 조회 → TanStack Query v5 권장 구조 확인
+4. `refactoring-rule.md` 표준 구조로 재구성
+5. `vercel-react-best-practices` 적용 → `bundle-barrel-imports`, `rerender-memo`
+
+---
+
+## ✅ 체크리스트
+
+작업 시작 전 항상 확인:
+
+- [ ] 작업 유형이 무엇인가? (개발/분석/주석/리팩토링)
+- [ ] 주 룰(Primary)과 보조 룰(Secondary)은?
+- [ ] 어떤 Skill을 참고해야 하는가?
+- [ ] MCP 도구(sequential-thinking, context7)가 필요한가?
+- [ ] 출력 형식은 어떤 룰을 따르는가?
+
+---
+
+## 🎓 학습 자료
+
+- **builder-rule.md**: Tech Stack, 코딩 원칙, 출력 형식
+- **code-analysis-rule.md**: 분석 순서, TypeScript 타입 설명
+- **doc-rule.md**: TSDoc 형식, Step 주석 규칙
+- **refactoring-rule.md**: 폴더 구조, 워크플로우
+- **nextjs-app-router-patterns**: Next.js 패턴, Server/Client 구분
+- **vercel-react-best-practices**: 성능 최적화 57개 룰

.agent/rules/refactoring-rule.md

@@ -0,0 +1,94 @@
+---
+trigger: manual
+---
+
+# 역할: Anti-Gravity Refactoring Specialist
+당신은 psix-frontend 프로젝트의 **구조적 개선 및 리팩토링 전문가**입니다.
+기존 스파게티 코드나 레거시 구조를 **모던하고 유지보수 가능한 표준 구조**로 재설계합니다.
+
+---
+
+## 📥 입력 (Input)
+- **FEATURE_ROOT**: 리팩토링할 기능의 루트 폴더 경로
+  - 예) `src/features/standards/work-execution`
+
+---
+
+## 🎯 목표 (Goal)
+1. **표준 폴더 구조 지향**: `apis`, `components`, `hooks`, `stores`, `types` 5대 폴더를 기본으로 구성한다.
+2. **유연성 허용**: 필요에 따라 `utils`(유틸리티), `lib`(라이브러리 래퍼), `constants`(상수) 등 보조 폴더 생성을 허용한다.
+3. **단일 파일 분해**: 거대한 파일은 기능 단위로 쪼개야 함
+4. **배럴 파일 제거**: `index.ts`를 사용한 re-export 패턴을 제거하고 직접 경로(`.../components/MyComponent`)를 사용
+
+---
+
+## 🛠️ MCP 도구 활용 (분석 및 설계 지침)
+
+### 1. Sequential Thinking 활용 (의존성 및 리스크 분석)
+- **적용 시점**: `1) FEATURE_ROOT의 기존 구조와 import 의존성 분석` 단계에서 필수 사용
+- **수행 작업**:
+  - 실제 파일을 옮기기 전, `sequential-thinking`을 사용하여 이동할 파일들의 의존성 지도(Dependency Map)를 먼저 그린다.
+  - 파일 이동 시 영향받는 외부 파일(page.tsx 등)의 리스트를 미리 확보한다.
+  - 수정해야 할 import 경로가 많은 경우, 논리적 순차 단계를 설정하여 하나씩 해결함으로써 경로 오류(Broken Import)를 방지한다.
+
+### 2. Context7 활용 (기술 표준 검증)
+- **적용 시점**: 폴더 구조 재구성 중 최신 라이브러리 패턴이 가이드와 충돌하거나 모호할 때 사용
+- **수행 작업**:
+  - TanStack Query의 최신 v5 권장 폴더 구조나 Next.js 15의 App Router 최적화 기법이 필요할 경우 `context7`을 통해 공식 문서를 조회한다.
+  - 조회된 최신 표준과 본 룰의 구조(`apis`, `hooks`, `types` 등)를 결합하여 개발자가 유지보수하기 가장 편한 최적의 경로를 도출한다.
+
+---
+
+## 📋 작업 지시 (Workflow)
+
+1. **분석**: `FEATURE_ROOT` 내의 기존 파일 구조와 외부 의존성(import)을 파악한다. (MCP 활용)
+2. **구조 설계**:
+   - **기본 폴더**: `apis`, `hooks`, `types`, `stores`, `components`
+   - **선택 폴더**: `utils` (순수 함수), `lib` (설정/래퍼), `constants` (상수 데이터)
+   - 위 기준에 맞춰 파일 분류 계획을 세운다.
+3. **이동 및 생성**: 파일을 계획된 폴더로 이동하거나 분리 생성한다.
+4. **경로 수정**: 이동된 파일에 맞춰 모든 `import` 경로를 업데이트한다.
+5. **청소**: 불필요해진 폴더(구조상 매핑되지 않는 옛 폴더)와 `index.ts` 파일을 삭제한다.
+6. **진입점 갱신**: `page.tsx` 등 외부에서 해당 기능을 사용하는 곳의 import 경로를 수정한다.
+
+---
+
+## 🏗️ 권장 파일 구조 (Standard Structure)
+
+```text
+<FEATURE_ROOT>/
+├── apis/
+│   ├── apiError.ts
+│   ├── <feature>.api.ts             # API 호출 로직
+│   ├── <feature>Form.adapter.ts     # Form <-> API 변환
+│   └── <feature>List.adapter.ts     # List <-> API 변환
+├── hooks/
+│   ├── queryKeys.ts                 # Query Key Factory
+│   ├── use<Feature>List.ts          # 목록 조회 Hooks
+│   ├── use<Feature>Mutations.ts     # CUD Hooks
+│   └── use<Feature>Form.ts          # Form Logic Hooks
+├── types/
+│   ├── api.types.ts                 # 공통 API 응답 규격
+│   ├── <feature>.types.ts           # 도메인 Entity
+│   └── selectOption.types.ts        # 공통 Select Option
+├── stores/
+│   └── <feature>Store.ts            # Zustand Store
+├── components/
+│   ├── <Feature>Container.tsx       # 메인 컨테이너
+│   └── <Feature>Modal.tsx           # 모달 컴포넌트
+├── utils/                           # (Optional)
+│   └── <feature>Utils.ts            # 순수 헬퍼 함수
+└── constants/                       # (Optional)
+    └── <feature>.constants.ts       # 상수 (components 내부에 둬도 무방)
+```
+
+---
+
+## ⚠️ 규칙 (Rules)
+
+1. **로직 변경 금지**: 오직 파일 위치와 구조만 변경하며, 비즈니스 로직은 건드리지 않는다.
+2. **Naming Convention**:
+   - 파일명은 **ASCII 영문**만 사용 (한글 금지)
+   - UI 컴포넌트 파일: `PascalCase` (예: `WorkExecutionContainer.tsx`)
+   - Hooks 및 일반 파일: `camelCase` (예: `useWorkExecutionList.ts`)
+3. **Clean Import**: import 시 불필요한 별칭(alias)보다는 명확한 상대/절대 경로를 사용한다.

.env.example

@@ -1,9 +1,29 @@
-# Supabase 환경 설정 예제 파일
-# 이 파일의 이름을 .env.local 로 변경한 뒤, 실제 값을 채워넣으세요.
+# Supabase 환경 설정 예제 파일
+# 이 파일을 .env.local로 복사한 뒤 실제 값을 채워 주세요.
 # 값 확인: https://supabase.com/dashboard/project/_/settings/api
 
 NEXT_PUBLIC_SUPABASE_URL=
 NEXT_PUBLIC_SUPABASE_ANON_KEY=
 
-# 세션 타임아웃 (분 단위)
+# 세션 타임아웃(분 단위)
 NEXT_PUBLIC_SESSION_TIMEOUT_MINUTES=30
+
+# KIS 거래 모드: real(실전) | mock(모의)
+KIS_TRADING_ENV=real
+
+# 서버 기본 키를 쓰고 싶은 경우(선택)
+KIS_APP_KEY_REAL=
+KIS_APP_SECRET_REAL=
+KIS_BASE_URL_REAL=https://openapi.koreainvestment.com:9443
+KIS_WS_URL_REAL=ws://ops.koreainvestment.com:21000
+
+KIS_APP_KEY_MOCK=
+KIS_APP_SECRET_MOCK=
+KIS_BASE_URL_MOCK=https://openapivts.koreainvestment.com:29443
+KIS_WS_URL_MOCK=ws://ops.koreainvestment.com:31000
+
+# (선택) 서버에서 기본 계좌번호를 사용할 경우
+# 형식: KIS_ACCOUNT_NO=12345678 또는 12345678-01
+#       KIS_ACCOUNT_PRODUCT_CODE=01
+KIS_ACCOUNT_NO=
+KIS_ACCOUNT_PRODUCT_CODE=

.gemini/settings.json

@@ -0,0 +1,6 @@
+{
+  "tools": {
+    "approvalMode": "auto_edit",
+    "allowed": ["run_shell_command"]
+  }
+}

.gitignore

@@ -119,8 +119,14 @@ storybook-static/
 *.local
 .cache/
 node_modules
+.tmp/
 
 # ========================================
 # Custom
 # ========================================
 .playwright-mcp/
+
+# ========================================
+# Documentation (문서)
+# ========================================
+docs/

AGENTS.md

@@ -1,45 +1,56 @@
-# AGENTS.md (auto-trade)
+# AGENTS.md (auto-trade)
 
 ## 기본 원칙
+
 - 모든 응답과 설명은 한국어로 작성.
-- 쉬운 말로 설명. 어려운 용어는 괄호로 짧게 뜻을 덧붙임.
+- 쉬운 말로 설명하고, 어려운 용어는 괄호로 짧게 뜻을 덧붙임.
 - 요청이 모호하면 먼저 질문 1~3개로 범위를 확인.
 
 ## 프로젝트 요약
+
 - Next.js 16 App Router, React 19, TypeScript
 - 상태 관리: zustand
 - 데이터: Supabase
 - 폼 및 검증: react-hook-form, zod
-- UI: Tailwind CSS v4, Radix UI (components.json 사용)
+- UI: Tailwind CSS v4, Radix UI (`components.json` 사용)
 
 ## 명령어
-- 개발 서버: (포트는 3001번이야)
-pm run dev
-- 린트: 
-pm run lint
-- 빌드: 
-pm run build
-- 실행: 
-pm run start
+
+- 개발 서버(포트 3001): `npm run dev`
+- 린트: `npm run lint`
+- 빌드: `npm run build`
+- 실행: `npm run start`
 
 ## 코드 및 문서 규칙
-- JSX 섹션 주석 형식: {/* ========== SECTION NAME ========== */}
-- 함수 및 컴포넌트 JSDoc에 @see 필수 (호출 파일, 함수 또는 이벤트 이름, 목적 포함)
+
+- JSX 섹션 주석 형식: `{/* ========== SECTION NAME ========== */}`
+- 함수 및 컴포넌트 JSDoc에 `@see` 필수
+- `@see`에는 호출 파일, 함수/이벤트 이름, 목적을 함께 작성
 - 상태 정의, 이벤트 핸들러, 복잡한 JSX 로직에는 인라인 주석을 충분히 작성
+- UI 흐름 설명 필수: `어느 UI -> A 함수 호출 -> B 함수 호출 -> 리턴값 반영` 형태로 작성
 
 ## 브랜드 색상 규칙
-- 메인 컬러는 헤더 로고/프로필 기준의 보라 계열 `brand` 팔레트를 사용.
-- 새 UI 작성 시 `indigo/purple/pink` 하드코딩 대신 `brand-*` 토큰 사용. 예: `bg-brand-500`, `text-brand-600`, `from-brand-500 to-brand-700`.
-- 기본 액션 색(버튼/포커스)은 `primary`를 사용하고, `primary`는 `app/globals.css`의 `brand` 팔레트와 같은 톤으로 유지.
-- 색상 변경이 필요하면 컴포넌트 개별 수정보다 먼저 `app/globals.css` 토큰을 수정.
 
-## 설명 방식
-- 단계별로 짧게, 예시는 1개만.
-- 사용자가 요청한 변경과 이유를 함께 설명.
-- 파일 경로는 pp/...처럼 코드 형식으로 표기.
+- 메인 컬러는 헤더 로고/프로필 기준의 보라 계열 `brand` 팔레트 사용
+- 새 UI 작성 시 `indigo/purple/pink` 하드코딩 대신 `brand-*` 토큰 사용
+- 예시: `bg-brand-500`, `text-brand-600`, `from-brand-500 to-brand-700`
+- 기본 액션 색(버튼/포커스)은 `primary` 사용
+- `primary`는 `app/globals.css`의 `brand` 팔레트와 같은 톤으로 유지
+- 색상 변경이 필요하면 컴포넌트 개별 수정보다 먼저 `app/globals.css` 토큰 수정
 
-## 여러 도구를 함께 쓸 때 (쉬운 설명)
-- 기준 설명을 한 군데에 모아두고, 그 파일만 계속 업데이트하는 것이 핵심.
-- 예를 들어 PROJECT_CONTEXT.md에 스택, 폴더 구조, 규칙을 적어둔다.
-- 그리고 각 도구의 규칙 파일에  PROJECT_CONTEXT.md를 참고라고 써 둔다.
-- 이렇게 하면 어떤 도구를 쓰든 같은 파일을 읽게 되어, 매번 다시 설명할 일이 줄어든다.
+## 개발 도구 활용
+
+- **Skills**: 프로젝트에 적합한 스킬을 적극 활용하여 베스트 프랙티스 적용
+- **MCP 서버**:
+  - `sequential-thinking`: 복잡한 문제 해결 시 단계별 사고 과정 정리
+  - `tavily-remote`: 최신 기술 트렌드 및 문서 검색
+  - `playwright` / `playwriter`: 브라우저 자동화 테스트
+  - `next-devtools`: Next.js 프로젝트 개발 및 디버깅
+  - `context7`: 라이브러리/프레임워크 공식 문서 참조
+  - `supabase-mcp-server`: Supabase 프로젝트 관리 및 쿼리
+
+## 한국 투자 증권 API 이용시
+
+- `mcp:kis-code-assistant-mcp` 활용
+- `C:\dev\auto-trade\.tmp\open-trading-api` 활용
+- API 이용시 공식 문서에 최신 업데이트가 안되어 있을수 있으므로 필요시 최신 API 명세 엑셀파일 요청을 한다. 그럼 사용자가 업로드 해줄것이다.

PROJECT_CONTEXT.md

@@ -1,48 +0,0 @@
-# PROJECT_CONTEXT.md
-
-이 파일은 프로젝트 설명의 기준(원본)입니다.
-여기만 업데이트하고, 다른 도구 규칙에서는 이 파일을 참고하도록 연결하세요.
-
-## 한 줄 요약
-- 자동매매(오토 트레이드) 웹 앱
-
-## 기술 스택
-- Next.js 16 (App Router)
-- React 19, TypeScript
-- 상태 관리: zustand
-- 데이터: Supabase
-- 폼/검증: react-hook-form, zod
-- UI: Tailwind CSS v4, Radix UI
-
-## 폴더 구조(핵심만)
-- pp/ 라우팅 및 페이지
-- eatures/ 도메인별 기능
-- components/ 공용 UI
-- lib/ 유틸/클라이언트
-- utils/ 헬퍼
-
-## 주요 규칙(요약)
-- JSX 섹션 주석 형식: {/* ========== SECTION NAME ========== */}
-- 함수/컴포넌트 JSDoc에 @see 필수
-- 파일 상단에 @author jihoon87.lee
-- 상태/이벤트/복잡 로직에 인라인 주석 충분히 작성
-
-## 작업 흐름
-- 개발 서버: 
-pm run dev
-- 린트: 
-pm run lint
-- 빌드: 
-pm run build
-- 실행: 
-pm run start
-
-## 자주 하는 설명 템플릿
-- 변경 이유: (왜 바꾸는지)
-- 변경 내용: (무엇을 바꾸는지)
-- 영향 범위: (어디에 영향이 있는지)
-
-## 업데이트 가이드
-- 새 규칙/패턴이 생기면 여기에 먼저 추가
-- 문장이 길어지면 더 짧게 요약
-- 도구별 규칙 파일에는  PROJECT_CONTEXT.md 참고만 적기

README.md

@@ -1,36 +1,161 @@
-This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+# auto-trade
 
-## Getting Started
+한국투자증권(KIS) Open API와 Supabase 인증을 연결한 국내주식 트레이딩 대시보드입니다.  
+사용자는 로그인 후 API 키를 검증하고, 종목 검색/상세/차트/호가/체결/주문 화면을 한 곳에서 사용할 수 있습니다.
 
-First, run the development server:
+## 1) 핵심 기능
+
+- 인증: Supabase 이메일/소셜 로그인, 비밀번호 재설정, 세션 타임아웃 자동 로그아웃
+- KIS 연결: 실전/모의 모드 선택, API 키 검증, 웹소켓 승인키 발급
+- 트레이드 화면: 종목 검색, 종목 개요, 캔들 차트, 실시간 호가/체결, 현금 주문
+- 종목 검색 인덱스: `korean-stocks.json` 기반 고속 검색 + 자동 갱신 스크립트
+
+## 2) 기술 스택
+
+- 프레임워크: Next.js 16 (App Router), React 19, TypeScript
+- 상태관리: Zustand
+- 서버 상태: TanStack Query (React Query)
+- 인증/백엔드: Supabase (`@supabase/ssr`, `@supabase/supabase-js`)
+- UI: Tailwind CSS v4, Radix UI, Sonner
+- 차트: `lightweight-charts`
+
+## 3) 화면/라우트
+
+- `/`: 서비스 랜딩 페이지
+- `/login`, `/signup`, `/forgot-password`, `/reset-password`: 인증 페이지
+- `/dashboard`: 로그인 전용(현재 플레이스홀더)
+- `/settings`: KIS API 키 연결/해제
+- `/trade`: 실제 트레이딩 대시보드
+
+## 4) UI 흐름 (중요)
+
+- 인증 흐름: 로그인 UI -> `features/auth/actions.ts` -> Supabase Auth -> 세션 쿠키 반영 -> 보호 라우트 접근 허용
+- KIS 연결 흐름: 설정 UI -> `/api/kis/validate` -> 토큰 발급 성공 확인 -> `use-kis-runtime-store`에 검증 상태 저장
+- 실시간 흐름: 트레이드 UI -> `/api/kis/ws/approval` -> `useKisTradeWebSocket` 구독 -> 체결/호가 파싱 -> 차트/호가창 반영
+- 검색 흐름: 검색 UI -> `/api/kis/domestic/search` -> `korean-stocks.json` 메모리 검색 -> 결과 목록 반영
+
+## 5) 빠른 시작
+
+### 5-1. 요구 사항
+
+- Node.js 20 이상
+- npm 10 이상 권장
+
+### 5-2. 설치
+
+```bash
+npm install
+```
+
+### 5-3. 환경변수 설정
+
+`.env.example`을 복사해서 `.env.local`을 만듭니다.
+
+```bash
+cp .env.example .env.local
+```
+
+Windows PowerShell:
+
+```powershell
+Copy-Item .env.example .env.local
+```
+
+필수 값은 아래를 먼저 채우면 됩니다.
+
+- `NEXT_PUBLIC_SUPABASE_URL`
+- `NEXT_PUBLIC_SUPABASE_ANON_KEY`
+
+KIS는 선택입니다(직접 입력 방식이면 서버 기본 키 없이도 동작 가능).
+
+- `KIS_TRADING_ENV=real|mock`
+- `KIS_APP_KEY_REAL`, `KIS_APP_SECRET_REAL` (선택)
+- `KIS_APP_KEY_MOCK`, `KIS_APP_SECRET_MOCK` (선택)
+- `NEXT_PUBLIC_BASE_URL` (선택, 배포 도메인 사용 시 권장)
+
+### 5-4. 로컬 실행
 
 ```bash
 npm run dev
-# or
-yarn dev
-# or
-pnpm dev
-# or
-bun dev
 ```
 
-Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+- 개발 서버: `http://localhost:3001`
+- Turbopack 적용: `package.json`의 `dev` 스크립트에 `--turbopack` 포함
 
-You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+### 5-5. 점검 명령
 
-This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+```bash
+npm run lint
+npm run build
+npm run start
+```
 
-## Learn More
+## 6) 종목 인덱스 동기화
 
-To learn more about Next.js, take a look at the following resources:
+`features/trade/data/korean-stocks.json`은 수동 편집용 파일이 아닙니다.  
+KIS 마스터 파일(KOSPI/KOSDAQ)에서 자동 생성합니다.
 
-- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
-- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+```bash
+npm run sync:stocks
+```
 
-You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
+검증만 하고 싶으면:
 
-## Deploy on Vercel
+```bash
+npm run sync:stocks:check
+```
 
-The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+상세 문서: `docs/trade-stock-sync.md`
 
-Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.
+## 7) API 엔드포인트 요약
+
+- 인증/연결
+- `POST /api/kis/validate`: API 키 검증
+- `POST /api/kis/revoke`: 토큰 폐기
+- `POST /api/kis/ws/approval`: 웹소켓 승인키 발급
+
+- 국내주식
+- `GET /api/kis/domestic/search?q=...`: 종목 검색(로컬 인덱스)
+- `GET /api/kis/domestic/overview?symbol=...`: 종목 개요
+- `GET /api/kis/domestic/orderbook?symbol=...`: 호가
+- `GET /api/kis/domestic/chart?symbol=...&timeframe=...`: 차트
+- `POST /api/kis/domestic/order-cash`: 현금 주문
+
+## 8) 프로젝트 구조
+
+```text
+app/
+  (home)/            랜딩
+  (auth)/            로그인/회원가입/비밀번호 재설정
+  (main)/            로그인 후 화면(dashboard/trade/settings)
+  api/kis/           KIS 연동 API 라우트
+features/
+  auth/              인증 UI/액션/상수
+  settings/          KIS 키 설정 UI + 런타임 스토어
+  trade/             검색/차트/호가/주문/웹소켓
+lib/kis/             KIS REST/WS 공통 로직
+scripts/
+  sync-korean-stocks.mjs
+utils/supabase/      서버/클라이언트/미들웨어 클라이언트
+```
+
+## 9) 트러블슈팅
+
+- KIS 검증 실패
+- 입력한 앱키/시크릿, 실전/모의 모드가 맞는지 확인
+- KIS Open API 앱 권한과 IP 허용 설정 확인
+
+- 실시간 체결/호가가 안 들어옴
+- `/settings`에서 검증 상태가 유지되는지 확인
+- 장 구간(장중/동시호가/시간외)에 따라 데이터가 달라질 수 있음
+- 브라우저 콘솔 디버그가 필요하면 `localStorage.KIS_WS_DEBUG = "1"` 설정
+
+- 검색 결과가 기대와 다름
+- 검색은 KIS 실시간 검색 API가 아니라 로컬 인덱스(`korean-stocks.json`) 기반
+- 최신 종목 반영이 필요하면 `npm run sync:stocks` 실행
+
+## 10) 운영 주의사항
+
+- 현재 KIS 입력값과 검증 상태 일부는 브라우저 로컬 스토리지(localStorage, 브라우저 저장소)에 저장됩니다.
+- 실전 운영 시에는 민감정보 보관 정책(암호화, 만료, 서버 보관 방식)을 반드시 따로 설계하세요.
+- 주문은 계좌번호가 필요합니다. 계좌번호 입력/검증 UX는 운영 환경에 맞게 보완이 필요합니다.

app/(auth)/forgot-password/page.tsx

@@ -12,6 +12,7 @@ import {
 } from "@/components/ui/card";
 import Link from "next/link";
 import { AUTH_ROUTES } from "@/features/auth/constants";
+import { Mail } from "lucide-react";
 
 /**
  * [비밀번호 찾기 페이지]
@@ -31,10 +32,10 @@ export default async function ForgotPasswordPage({
     <div className="relative z-10 w-full max-w-md animate-in fade-in slide-in-from-bottom-4 duration-700">
       {message && <FormMessage message={message} />}
 
-      <Card className="border-white/20 bg-white/70 shadow-2xl backdrop-blur-xl dark:border-white/10 dark:bg-gray-900/70">
+      <Card className="border-brand-200/30 bg-white/80 shadow-2xl shadow-brand-500/5 backdrop-blur-xl dark:border-brand-800/30 dark:bg-brand-950/70">
         <CardHeader className="space-y-3 text-center">
-          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-gray-800 to-black shadow-lg dark:from-white dark:to-gray-200">
-            <span className="text-sm font-semibold">MAIL</span>
+          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-brand-500 to-brand-700 shadow-lg shadow-brand-500/25">
+            <Mail className="h-7 w-7 text-white" />
           </div>
           <CardTitle className="text-3xl font-bold tracking-tight">
             비밀번호 재설정
@@ -59,13 +60,13 @@ export default async function ForgotPasswordPage({
                 placeholder="name@example.com"
                 autoComplete="email"
                 required
-                className="h-11 transition-all duration-200"
+                className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
               />
             </div>
 
             <Button
               formAction={requestPasswordReset}
-              className="h-11 w-full bg-linear-to-r from-gray-900 to-black font-semibold text-white shadow-lg transition-all hover:from-black hover:to-gray-800 hover:shadow-xl dark:from-white dark:to-gray-100 dark:text-black dark:hover:from-gray-100 dark:hover:to-white"
+              className="h-11 w-full bg-linear-to-r from-brand-500 to-brand-700 font-semibold text-white shadow-lg shadow-brand-500/20 transition-all hover:from-brand-600 hover:to-brand-800 hover:shadow-xl hover:shadow-brand-500/25"
             >
               재설정 링크 보내기
             </Button>
@@ -74,7 +75,7 @@ export default async function ForgotPasswordPage({
           <div className="text-center">
             <Link
               href={AUTH_ROUTES.LOGIN}
-              className="text-sm font-medium text-gray-700 hover:text-black dark:text-gray-300 dark:hover:text-white"
+              className="text-sm font-medium text-brand-600 transition-colors hover:text-brand-700 dark:text-brand-400 dark:hover:text-brand-300"
             >
               로그인 페이지로 돌아가기
             </Link>

app/(auth)/layout.tsx

@@ -12,17 +12,18 @@ export default async function AuthLayout({
   } = await supabase.auth.getUser();
 
   return (
-    <div className="relative flex min-h-screen flex-col items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 dark:from-black dark:via-gray-950 dark:to-gray-900">
+    <div className="relative flex min-h-screen flex-col items-center justify-center overflow-hidden bg-linear-to-br from-brand-50 via-white to-brand-100/60 dark:from-brand-950 dark:via-gray-950 dark:to-brand-900/40">
       {/* ========== 헤더 (홈 이동용) ========== */}
       <Header user={user} />
 
       {/* ========== 배경 그라디언트 레이어 ========== */}
-      <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_top_right,var(--tw-gradient-stops))] from-gray-200/30 via-gray-100/15 to-transparent dark:from-gray-800/30 dark:via-gray-900/20" />
-      <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_bottom_left,var(--tw-gradient-stops))] from-gray-300/30 via-gray-200/15 to-transparent dark:from-gray-700/30 dark:via-gray-800/20" />
+      <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_top_right,var(--tw-gradient-stops))] from-brand-200/40 via-brand-100/20 to-transparent dark:from-brand-800/25 dark:via-brand-900/15" />
+      <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_bottom_left,var(--tw-gradient-stops))] from-brand-300/30 via-brand-200/15 to-transparent dark:from-brand-700/20 dark:via-brand-800/10" />
 
       {/* ========== 애니메이션 블러 효과 ========== */}
-      <div className="absolute left-1/4 top-1/4 h-64 w-64 animate-pulse rounded-full bg-gray-300/20 blur-3xl dark:bg-gray-700/20" />
-      <div className="absolute bottom-1/4 right-1/4 h-64 w-64 animate-pulse rounded-full bg-gray-400/20 blur-3xl delay-700 dark:bg-gray-600/20" />
+      <div className="absolute left-1/4 top-1/4 h-72 w-72 animate-pulse rounded-full bg-brand-300/25 blur-3xl dark:bg-brand-700/15" />
+      <div className="absolute bottom-1/4 right-1/4 h-72 w-72 animate-pulse rounded-full bg-brand-400/20 blur-3xl delay-700 dark:bg-brand-600/15" />
+      <div className="absolute right-1/3 top-1/3 h-48 w-48 animate-pulse rounded-full bg-brand-200/30 blur-2xl delay-1000 dark:bg-brand-800/20" />
 
       {/* ========== 메인 콘텐츠 영역 (중앙 정렬) ========== */}
       <main className="z-10 flex w-full flex-1 flex-col items-center justify-center px-4 py-12">

app/(auth)/login/page.tsx

@@ -7,13 +7,13 @@ import {
   CardTitle,
 } from "@/components/ui/card";
 import LoginForm from "@/features/auth/components/login-form";
+import { LogIn } from "lucide-react";
 
 /**
  * [로그인 페이지 컴포넌트]
  *
- * Modern UI with glassmorphism effect (유리 형태 디자인)
- * - 투명 배경 + 블러 효과로 깊이감 표현
- * - 그라디언트 배경으로 생동감 추가
+ * 브랜드 컬러 기반 글래스모피즘 카드 디자인
+ * - 보라색 그라디언트 아이콘 배지
  * - shadcn/ui 컴포넌트로 일관된 디자인 시스템 유지
  *
  * @param searchParams - URL 쿼리 파라미터 (에러 메시지 전달용)
@@ -23,36 +23,25 @@ export default async function LoginPage({
 }: {
   searchParams: Promise<{ message: string }>;
 }) {
-  // URL에서 메시지 파라미터 추출 (로그인 실패 시 에러 메시지 표시)
   const { message } = await searchParams;
 
   return (
     <div className="relative z-10 w-full max-w-md animate-in fade-in slide-in-from-bottom-4 duration-700">
-      {/* 에러/성공 메시지 표시 영역 */}
-      {/* URL 파라미터에 message가 있으면 표시됨 */}
       <FormMessage message={message} />
 
-      {/* ========== 로그인 카드 (Glassmorphism) ========== */}
-      {/* bg-white/70: 70% 투명도의 흰색 배경 */}
-      {/* backdrop-blur-xl: 배경 블러 효과 (유리 느낌) */}
-      <Card className="border-white/20 bg-white/70 shadow-2xl backdrop-blur-xl dark:border-white/10 dark:bg-gray-900/70">
-        {/* ========== 카드 헤더 영역 ========== */}
+      <Card className="border-brand-200/30 bg-white/80 shadow-2xl shadow-brand-500/5 backdrop-blur-xl dark:border-brand-800/30 dark:bg-brand-950/70">
         <CardHeader className="space-y-3 text-center">
-          {/* 아이콘 배경: 그라디언트 원형 */}
-          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-gray-800 to-black shadow-lg dark:from-white dark:to-gray-200">
-            <span className="text-4xl">👋</span>
+          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-brand-500 to-brand-700 shadow-lg shadow-brand-500/25">
+            <LogIn className="h-7 w-7 text-white" />
           </div>
-          {/* 페이지 제목 */}
           <CardTitle className="text-3xl font-bold tracking-tight">
             환영합니다!
           </CardTitle>
-          {/* 페이지 설명 */}
           <CardDescription className="text-base">
             서비스 이용을 위해 로그인해 주세요.
           </CardDescription>
         </CardHeader>
 
-        {/* ========== 카드 콘텐츠 영역 (폼) ========== */}
         <CardContent>
           <LoginForm />
         </CardContent>

app/(auth)/reset-password/page.tsx

@@ -9,6 +9,7 @@ import {
 } from "@/components/ui/card";
 import { createClient } from "@/utils/supabase/server";
 import { redirect } from "next/navigation";
+import { KeyRound } from "lucide-react";
 
 /**
  * [비밀번호 재설정 페이지]
@@ -39,10 +40,10 @@ export default async function ResetPasswordPage({
     <div className="relative z-10 w-full max-w-md animate-in fade-in slide-in-from-bottom-4 duration-700">
       {message && <FormMessage message={message} />}
 
-      <Card className="border-white/20 bg-white/70 shadow-2xl backdrop-blur-xl dark:border-white/10 dark:bg-gray-900/70">
+      <Card className="border-brand-200/30 bg-white/80 shadow-2xl shadow-brand-500/5 backdrop-blur-xl dark:border-brand-800/30 dark:bg-brand-950/70">
         <CardHeader className="space-y-3 text-center">
-          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-gray-800 to-black shadow-lg dark:from-white dark:to-gray-200">
-            <span className="text-sm font-semibold">PW</span>
+          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-brand-500 to-brand-700 shadow-lg shadow-brand-500/25">
+            <KeyRound className="h-7 w-7 text-white" />
           </div>
           <CardTitle className="text-3xl font-bold tracking-tight">
             비밀번호 재설정

app/(auth)/signup/page.tsx

@@ -9,6 +9,7 @@ import {
   CardHeader,
   CardTitle,
 } from "@/components/ui/card";
+import { UserPlus } from "lucide-react";
 
 export default async function SignupPage({
   searchParams,
@@ -19,13 +20,12 @@ export default async function SignupPage({
 
   return (
     <div className="relative z-10 w-full max-w-md animate-in fade-in slide-in-from-bottom-4 duration-700">
-      {/* 메시지 알림 */}
       <FormMessage message={message} />
 
-      <Card className="border-white/20 bg-white/70 shadow-2xl backdrop-blur-xl dark:border-white/10 dark:bg-gray-900/70">
+      <Card className="border-brand-200/30 bg-white/80 shadow-2xl shadow-brand-500/5 backdrop-blur-xl dark:border-brand-800/30 dark:bg-brand-950/70">
         <CardHeader className="space-y-3 text-center">
-          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-gray-800 to-black shadow-lg dark:from-white dark:to-gray-200">
-            <span className="text-4xl">🚀</span>
+          <div className="mx-auto mb-2 flex h-16 w-16 items-center justify-center rounded-2xl bg-linear-to-br from-brand-500 to-brand-700 shadow-lg shadow-brand-500/25">
+            <UserPlus className="h-7 w-7 text-white" />
           </div>
           <CardTitle className="text-3xl font-bold tracking-tight">
             회원가입
@@ -35,16 +35,14 @@ export default async function SignupPage({
           </CardDescription>
         </CardHeader>
 
-        {/* ========== 폼 영역 ========== */}
         <CardContent className="space-y-6">
           <SignupForm />
 
-          {/* ========== 로그인 링크 ========== */}
-          <p className="text-center text-sm text-gray-600 dark:text-gray-400">
+          <p className="text-center text-sm text-muted-foreground">
             이미 계정이 있으신가요?{" "}
             <Link
               href={AUTH_ROUTES.LOGIN}
-              className="font-semibold text-gray-900 transition-colors hover:text-black dark:text-gray-100 dark:hover:text-white"
+              className="font-semibold text-brand-600 transition-colors hover:text-brand-700 dark:text-brand-400 dark:hover:text-brand-300"
             >
               로그인 하러 가기
             </Link>

app/(home)/page.tsx

@@ -1,222 +1,348 @@
-/**
+/**
  * @file app/(home)/page.tsx
- * @description 서비스 메인 랜딩 페이지
- * @remarks
- * - [레이어] Pages (Server Component)
- * - [역할] 비로그인 유저 유입, 브랜드 소개, 로그인/대시보드 유도
- * - [구성요소] Header, Hero Section (Spline 3D), Feature Section (Bento Grid)
- * - [데이터 흐름] Server Auth Check -> Client Component Props
+ * @description 서비스 메인 랜딩 페이지(Server Component)
  */
 
 import Link from "next/link";
-import { Button } from "@/components/ui/button";
-import { createClient } from "@/utils/supabase/server";
+import type { LucideIcon } from "lucide-react";
+import {
+  Activity,
+  ArrowRight,
+  ShieldCheck,
+  Sparkles,
+  TrendingUp,
+  Zap,
+} from "lucide-react";
 import { Header } from "@/features/layout/components/header";
 import { AUTH_ROUTES } from "@/features/auth/constants";
-import { SplineScene } from "@/features/home/components/spline-scene";
+import { Button } from "@/components/ui/button";
+import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import ShaderBackground from "@/components/ui/shader-background";
+import { createClient } from "@/utils/supabase/server";
+
+interface ValuePoint {
+  value: string;
+  label: string;
+  detail: string;
+}
+
+interface FeatureItem {
+  icon: LucideIcon;
+  eyebrow: string;
+  title: string;
+  description: string;
+}
+
+interface StartStep {
+  step: string;
+  title: string;
+  description: string;
+}
+
+const VALUE_POINTS: ValuePoint[] = [
+  {
+    value: "3분",
+    label: "초기 세팅 시간",
+    detail: "복잡한 설정 대신 질문 기반으로 빠르게 시작합니다.",
+  },
+  {
+    value: "24시간",
+    label: "실시간 시장 관제",
+    detail: "자리 비운 시간에도 규칙 기반으로 자동 대응합니다.",
+  },
+  {
+    value: "0원",
+    label: "가입 시작 비용",
+    detail: "부담 없이 계정 생성 후 내 투자 스타일부터 점검합니다.",
+  },
+];
+
+const FEATURE_ITEMS: FeatureItem[] = [
+  {
+    icon: ShieldCheck,
+    eyebrow: "Risk Guard",
+    title: "손실 방어를 먼저 설계합니다",
+    description:
+      "진입보다 중요한 것은 방어입니다. 손절 기준과 노출 한도를 먼저 세워 감정 개입을 줄입니다.",
+  },
+  {
+    icon: TrendingUp,
+    eyebrow: "Data Momentum",
+    title: "데이터로 타점을 좁힙니다",
+    description:
+      "실시간 데이터 흐름을 읽어 조건이 맞을 때만 실행합니다. 초보도 납득 가능한 근거를 확인할 수 있습니다.",
+  },
+  {
+    icon: Zap,
+    eyebrow: "Auto Execution",
+    title: "기회가 오면 즉시 자동 실행합니다",
+    description:
+      "규칙이 충족되면 지연 없이 주문이 실행됩니다. 잠자는 시간과 업무 시간에도 전략은 멈추지 않습니다.",
+  },
+];
+
+const START_STEPS: StartStep[] = [
+  {
+    step: "STEP 01",
+    title: "계정 연결",
+    description: "안내에 따라 거래 계정을 안전하게 연결합니다.",
+  },
+  {
+    step: "STEP 02",
+    title: "성향 선택",
+    description: "공격형·균형형·안정형 중 내 스타일을 고릅니다.",
+  },
+  {
+    step: "STEP 03",
+    title: "자동 실행 시작",
+    description: "선택한 전략으로 실시간 관제를 바로 시작합니다.",
+  },
+];
 
 /**
- * 메인 페이지 컴포넌트 (비동기 서버 컴포넌트)
- * @returns Landing Page Elements
- * @see layout.tsx - RootLayout 내에서 렌더링
- * @see spline-scene.tsx - 3D 인터랙션
+ * 홈 메인 랜딩 페이지
+ * @returns 랜딩 UI
+ * @see features/layout/components/header.tsx blendWithBackground 모드 헤더를 함께 사용
  */
 export default async function HomePage() {
-  // [Step 1] 서버 사이드 인증 상태 확인
+  // [로그인 상태 조회] 사용자 유무에 따라 CTA 링크를 분기합니다.
   const supabase = await createClient();
   const {
     data: { user },
   } = await supabase.auth.getUser();
 
+  // [CTA 분기] 로그인 여부에 따라 같은 위치에서 다른 행동으로 자연스럽게 전환합니다.
+  const primaryCtaHref = user ? AUTH_ROUTES.DASHBOARD : AUTH_ROUTES.SIGNUP;
+  const primaryCtaLabel = user ? "대시보드로 전략 실행하기" : "무료로 시작하고 첫 전략 받기";
+  const secondaryCtaHref = user ? AUTH_ROUTES.DASHBOARD : AUTH_ROUTES.LOGIN;
+  const secondaryCtaLabel = user ? "실시간 상태 확인하기" : "기존 계정으로 로그인";
+
   return (
-    <div className="flex min-h-screen flex-col overflow-x-hidden">
-      <Header user={user} showDashboardLink={true} />
+    <div className="flex min-h-screen flex-col overflow-x-hidden bg-transparent">
+      <Header user={user} showDashboardLink={true} blendWithBackground={true} />
 
-      <main className="flex-1 bg-background pt-16">
-        {/* Background Pattern */}
-        <div className="absolute inset-0 -z-10 h-full w-full bg-white dark:bg-black bg-[linear-gradient(to_right,#8080800a_1px,transparent_1px),linear-gradient(to_bottom,#8080800a_1px,transparent_1px)] bg-size-[14px_24px] mask-[radial-gradient(ellipse_60%_50%_at_50%_0%,#000_70%,transparent_100%)]" />
+      <main className="relative isolate flex-1 overflow-hidden pt-16">
+        {/* ========== SHADER BACKGROUND SECTION ========== */}
+        <ShaderBackground opacity={1} className="-z-20" />
+        <div aria-hidden="true" className="pointer-events-none absolute inset-0 -z-10 bg-black/45" />
+        <div
+          aria-hidden="true"
+          className="pointer-events-none absolute -left-40 top-40 -z-10 h-96 w-96 rounded-full bg-brand-500/20 blur-3xl"
+        />
+        <div
+          aria-hidden="true"
+          className="pointer-events-none absolute -right-24 top-72 -z-10 h-[26rem] w-[26rem] rounded-full bg-brand-300/20 blur-3xl"
+        />
 
-        <section className="container relative mx-auto max-w-7xl px-4 pt-12 md:pt-24 lg:pt-32">
-          <div className="flex flex-col items-center justify-center text-center">
-            {/* Badge */}
-            <div className="mb-6 inline-flex items-center rounded-full border border-brand-200/50 bg-brand-50/50 px-3 py-1 text-sm font-medium text-brand-600 backdrop-blur-md dark:border-brand-800/50 dark:bg-brand-900/50 dark:text-brand-300">
-              <span className="mr-2 flex h-2 w-2 animate-pulse rounded-full bg-brand-500"></span>
-              The Future of Trading
-            </div>
+        {/* ========== HERO SECTION ========== */}
+        <section className="container mx-auto max-w-7xl px-4 pb-14 pt-14 md:pt-24">
+          <div className="grid gap-8 lg:grid-cols-12 lg:gap-10">
+            <div className="lg:col-span-7">
+              <span className="inline-flex animate-in fade-in-0 items-center gap-2 rounded-full border border-brand-400/40 bg-brand-500/15 px-4 py-1.5 text-xs font-semibold tracking-wide text-brand-100 backdrop-blur-md duration-700">
+                <Sparkles className="h-3.5 w-3.5" />
+                초보 투자자를 위한 전략 자동매매 파트너
+              </span>
 
-            <h1 className="font-heading text-4xl font-black tracking-tight text-foreground sm:text-6xl md:text-7xl lg:text-8xl">
-              투자의 미래를 <br className="hidden sm:block" />
-              <span className="animate-gradient-x bg-linear-to-r from-brand-500 via-brand-600 to-brand-700 bg-clip-text text-transparent underline decoration-brand-500/30 decoration-4 underline-offset-8">
-                자동화하세요
+              <h1 className="mt-5 animate-in slide-in-from-bottom-4 text-4xl font-black tracking-tight text-white [text-shadow:0_6px_40px_rgba(0,0,0,0.55)] duration-700 md:text-6xl">
+                감이 아닌 전략으로,
+                <br />
+                <span className="bg-linear-to-r from-brand-100 via-brand-300 to-brand-500 bg-clip-text text-transparent">
+                  내 계좌의 성장 루틴을 만드세요
                 </span>
               </h1>
 
-            <p className="mt-6 max-w-2xl text-lg text-muted-foreground sm:text-xl leading-relaxed break-keep">
-              AutoTrade는 최첨단 알고리즘을 통해 24시간 암호화폐 시장을
-              분석합니다.
-              <br className="hidden md:block" />
-              감정 없는 데이터 기반 투자로 안정적인 수익을 경험해보세요.
+              <p className="mt-5 max-w-2xl animate-in slide-in-from-bottom-4 text-sm leading-relaxed text-white/80 duration-700 md:text-lg">
+                주린이는 보호와 성장의 균형을 먼저 설계합니다.
+                <br />
+                손실 방어 규칙, 데이터 신호, 자동 실행을 하나의 흐름으로 묶어 초보의 첫 수익 루틴을 만듭니다.
               </p>
 
-            <div className="mt-8 flex flex-col items-center gap-4 sm:flex-row">
-              {user ? (
+              <div className="mt-8 flex animate-in flex-col gap-3 duration-700 sm:flex-row">
                 <Button
                   asChild
                   size="lg"
-                  className="h-14 rounded-full px-10 text-lg font-bold shadow-xl shadow-brand-500/20 transition-all hover:scale-105 hover:shadow-brand-500/40"
+                  className="group h-12 rounded-full bg-linear-to-r from-brand-500 via-brand-400 to-brand-600 px-8 text-base font-semibold text-white shadow-2xl shadow-brand-800/45 [background-size:200%_200%] animate-gradient-x hover:brightness-110"
                 >
-                  <Link href={AUTH_ROUTES.DASHBOARD}>대시보드 바로가기</Link>
+                  <Link href={primaryCtaHref}>
+                    {primaryCtaLabel}
+                    <ArrowRight className="h-4 w-4 transition-transform group-hover:translate-x-0.5" />
+                  </Link>
                 </Button>
-              ) : (
-                <Button
-                  asChild
-                  size="lg"
-                  className="h-14 rounded-full px-10 text-lg font-bold shadow-xl shadow-brand-500/20 transition-all hover:scale-105 hover:shadow-brand-500/40"
-                >
-                  <Link href={AUTH_ROUTES.LOGIN}>무료로 시작하기</Link>
-                </Button>
-              )}
-              {!user && (
                 <Button
                   asChild
                   variant="outline"
                   size="lg"
-                  className="h-14 rounded-full border-border bg-background/50 px-10 text-lg hover:bg-accent/50 backdrop-blur-sm"
+                  className="h-12 rounded-full border-white/35 bg-black/30 px-8 text-base text-white backdrop-blur-md hover:bg-white/10 hover:text-white"
                 >
-                  <Link href={AUTH_ROUTES.LOGIN}>데모 체험하기</Link>
+                  <Link href={secondaryCtaHref}>{secondaryCtaLabel}</Link>
                 </Button>
-              )}
               </div>
 
-            {/* Spline Scene - Centered & Wide */}
-            <div className="relative mt-16 w-full max-w-5xl">
-              <div className="group relative aspect-video w-full overflow-hidden rounded-3xl border border-white/20 bg-linear-to-b from-white/10 to-transparent shadow-2xl backdrop-blur-2xl dark:border-white/10 dark:bg-black/20">
-                {/* Glow Effect */}
-                <div className="absolute -inset-1 rounded-3xl bg-linear-to-r from-brand-500 via-brand-600 to-brand-700 opacity-20 blur-2xl transition-opacity duration-500 group-hover:opacity-40" />
+              <div className="mt-4 flex flex-wrap gap-3 text-xs text-white/70">
+                <span className="rounded-full border border-white/20 bg-white/5 px-3 py-1 backdrop-blur-sm">
+                  가입 3분
+                </span>
+                <span className="rounded-full border border-white/20 bg-white/5 px-3 py-1 backdrop-blur-sm">
+                  카드 등록 없음
+                </span>
+                <span className="rounded-full border border-white/20 bg-white/5 px-3 py-1 backdrop-blur-sm">
+                  언제든 전략 변경 가능
+                </span>
+              </div>
+            </div>
 
-                <SplineScene
-                  sceneUrl="https://prod.spline.design/6Wq1Q7YGyM-iab9i/scene.splinecode"
-                  className="relative z-10 h-full w-full rounded-2xl"
-                />
+            <div className="relative lg:col-span-5">
+              <div className="absolute -inset-px rounded-3xl bg-linear-to-br from-brand-300/50 via-brand-600/0 to-brand-600/60 blur-lg" />
+              <div className="relative overflow-hidden rounded-3xl border border-white/15 bg-black/35 p-6 shadow-[0_30px_90px_-45px_rgba(0,0,0,0.85)] backdrop-blur-2xl">
+                <div className="flex items-center justify-between border-b border-white/10 pb-4">
+                  <div>
+                    <p className="text-xs font-semibold tracking-wide text-brand-200">LIVE STRATEGY STATUS</p>
+                    <p className="mt-1 text-lg font-semibold text-white">실시간 자동매매 관제</p>
+                  </div>
+                  <span className="inline-flex items-center gap-1 rounded-full bg-brand-500/25 px-3 py-1 text-xs font-semibold text-brand-100">
+                    <Activity className="h-3.5 w-3.5" />
+                    안정 운영중
+                  </span>
+                </div>
+
+                {/* [신뢰 포인트] UI 안에서 가치 제안을 한눈에 보여 주기 위해 핵심 상태를 카드형으로 배치합니다. */}
+                <div className="mt-5 grid gap-3">
+                  <div className="rounded-2xl border border-white/10 bg-white/5 px-4 py-3">
+                    <p className="text-xs text-white/65">리스크 룰 적용</p>
+                    <p className="mt-1 text-sm font-semibold text-white">손실 제한 + 분할 대응 활성화</p>
+                  </div>
+                  <div className="rounded-2xl border border-white/10 bg-white/5 px-4 py-3">
+                    <p className="text-xs text-white/65">데이터 신호 감시</p>
+                    <p className="mt-1 text-sm font-semibold text-white">시장 흐름 조건 충족 시 자동 진입</p>
+                  </div>
+                  <div className="rounded-2xl border border-white/10 bg-white/5 px-4 py-3">
+                    <p className="text-xs text-white/65">실행 상태</p>
+                    <p className="mt-1 text-sm font-semibold text-white">체결 지연 최소화, 규칙 기반 지속 운영</p>
                   </div>
                 </div>
+
+                <div className="mt-5 flex items-center gap-2 text-xs text-brand-100/90">
+                  <span className="inline-block h-2 w-2 rounded-full bg-brand-300" />
+                  당신의 전략은 설정한 원칙 안에서만 실행됩니다.
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <div className="mt-10 grid gap-4 md:grid-cols-3">
+            {VALUE_POINTS.map((point) => (
+              <div
+                key={point.label}
+                className="rounded-2xl border border-white/10 bg-white/5 p-6 backdrop-blur-md transition-colors hover:bg-white/10"
+              >
+                <p className="text-2xl font-black text-brand-100">{point.value}</p>
+                <p className="mt-2 text-sm font-semibold text-white">{point.label}</p>
+                <p className="mt-2 text-xs leading-relaxed text-white/70">{point.detail}</p>
+              </div>
+            ))}
           </div>
         </section>
 
-        {/* Features Section - Bento Grid */}
-        <section className="container mx-auto max-w-7xl px-4 py-24 sm:py-32">
-          <div className="mb-16 text-center">
-            <h2 className="font-heading text-3xl font-bold tracking-tight sm:text-4xl md:text-5xl">
-              강력한 기능,{" "}
-              <span className="text-brand-500">직관적인 경험</span>
-            </h2>
-            <p className="mt-4 text-lg text-muted-foreground">
-              성공적인 투자를 위해 필요한 모든 도구가 준비되어 있습니다.
-            </p>
-          </div>
-
-          <div className="grid grid-cols-1 gap-4 md:grid-cols-3 md:gap-8">
-            {/* Feature 1 */}
-            <div className="group relative col-span-1 overflow-hidden rounded-3xl border border-border/50 bg-background/50 p-8 shadow-sm transition-all hover:shadow-xl hover:-translate-y-1 dark:bg-zinc-900/50 md:col-span-2">
-              <div className="relative z-10 flex flex-col justify-between h-full gap-6">
-                <div className="flex h-14 w-14 items-center justify-center rounded-2xl bg-brand-50 text-brand-600 dark:bg-brand-900/20 dark:text-brand-300">
-                  <svg
-                    className="w-8 h-8"
-                    fill="none"
-                    viewBox="0 0 24 24"
-                    stroke="currentColor"
-                  >
-                    <path
-                      strokeLinecap="round"
-                      strokeLinejoin="round"
-                      strokeWidth={2}
-                      d="M13 7h8m0 0v8m0-8l-8 8-4-4-6 6"
-                    />
-                  </svg>
-                </div>
-                <div>
-                  <h3 className="text-2xl font-bold mb-2">실시간 모니터링</h3>
-                  <p className="text-muted-foreground text-lg leading-relaxed">
-                    초당 수천 건의 트랜잭션을 실시간으로 분석합니다.
+        {/* ========== FEATURE SECTION ========== */}
+        <section className="container mx-auto max-w-7xl px-4 pb-16 md:pb-24">
+          <div className="mx-auto max-w-3xl text-center">
+            <p className="text-xs font-semibold tracking-widest text-brand-200">WHY JURINI</p>
+            <h2 className="mt-3 text-3xl font-black tracking-tight text-white md:text-4xl">
+              초보에게 필요한 건 복잡함이 아니라
               <br />
-                    시장 변동성을 놓치지 않고 최적의 진입 시점을 포착하세요.
-                  </p>
-                </div>
-              </div>
-              <div className="absolute top-0 right-0 h-64 w-64 translate-x-1/2 -translate-y-1/2 rounded-full bg-brand-500/10 blur-3xl transition-all duration-500 group-hover:bg-brand-500/20" />
+              <span className="text-brand-200">기준이 분명한 자동매매</span>입니다
+            </h2>
           </div>
 
-            {/* Feature 2 (Tall) */}
-            <div className="group relative col-span-1 row-span-2 overflow-hidden rounded-3xl border border-border/50 bg-background/50 p-8 shadow-sm transition-all hover:shadow-xl hover:-translate-y-1 dark:bg-zinc-900/50">
-              <div className="relative z-10 flex flex-col h-full gap-6">
-                <div className="flex h-14 w-14 items-center justify-center rounded-2xl bg-brand-50 text-brand-600 dark:bg-brand-900/20 dark:text-brand-300">
-                  <svg
-                    className="w-8 h-8"
-                    fill="none"
-                    viewBox="0 0 24 24"
-                    stroke="currentColor"
+          <div className="mt-8 grid gap-6 md:grid-cols-3">
+            {FEATURE_ITEMS.map((feature) => {
+              const FeatureIcon = feature.icon;
+
+              return (
+                <Card
+                  key={feature.title}
+                  className="group border-white/10 bg-black/25 text-white shadow-none backdrop-blur-md transition-all hover:-translate-y-1 hover:border-brand-400/40 hover:bg-black/35"
                 >
-                    <path
-                      strokeLinecap="round"
-                      strokeLinejoin="round"
-                      strokeWidth={2}
-                      d="M19.428 15.428a2 2 0 00-1.022-.547l-2.384-.477a6 6 0 00-3.86.517l-.318.158a6 6 0 01-3.86.517L6.05 15.21a2 2 0 00-1.806.547M8 4h8l-1 1v5.172a2 2 0 00.586 1.414l5 5c1.26 1.26.367 3.414-1.415 3.414H4.828c-1.782 0-2.674-2.154-1.414-3.414l5-5A2 2 0 009 10.172V5L8 4z"
-                    />
-                  </svg>
+                  <CardHeader>
+                    <div className="mb-2 inline-flex h-12 w-12 items-center justify-center rounded-2xl bg-brand-500/20 text-brand-200 transition-transform group-hover:scale-110">
+                      <FeatureIcon className="h-6 w-6" />
                     </div>
-                <h3 className="text-2xl font-bold">알고리즘 트레이딩</h3>
-                <p className="text-muted-foreground text-lg">
-                  24시간 멈추지 않는 자동 매매 시스템입니다.
+                    <p className="text-xs font-semibold tracking-wide text-brand-200">{feature.eyebrow}</p>
+                    <CardTitle className="text-xl leading-snug text-white">{feature.title}</CardTitle>
+                  </CardHeader>
+                  <CardContent className="text-sm leading-relaxed text-white/75">
+                    {feature.description}
+                  </CardContent>
+                </Card>
+              );
+            })}
+          </div>
+        </section>
+
+        {/* ========== START STEP SECTION ========== */}
+        <section className="container mx-auto max-w-7xl px-4 pb-16">
+          <div className="rounded-3xl border border-white/10 bg-white/5 p-6 backdrop-blur-xl md:p-10">
+            <div className="flex flex-col justify-between gap-8 md:flex-row md:items-end">
+              <div>
+                <p className="text-xs font-semibold tracking-widest text-brand-200">GET STARTED</p>
+                <h2 className="mt-3 text-3xl font-black tracking-tight text-white md:text-4xl">
+                  가입부터 자동 실행까지
+                  <br />
+                  <span className="text-brand-200">딱 3단계면 충분합니다</span>
+                </h2>
+              </div>
+              <p className="max-w-sm text-sm leading-relaxed text-white/70">
+                어려운 설정 화면 대신, 따라 하기 쉬운 단계로 바로 시작할 수 있게 구성했습니다.
               </p>
-                <div className="mt-auto space-y-4 pt-4">
-                  {[
-                    "추세 추종 전략",
-                    "변동성 돌파",
-                    "AI 예측 모델",
-                    "리스크 관리",
-                  ].map((item) => (
-                    <div
-                      key={item}
-                      className="flex items-center gap-3 text-sm font-medium text-foreground/80"
-                    >
-                      <div className="h-2 w-2 rounded-full bg-brand-500" />
-                      {item}
+            </div>
+
+            <div className="mt-8 grid gap-4 md:grid-cols-3">
+              {START_STEPS.map((item) => (
+                <div key={item.step} className="rounded-2xl border border-white/10 bg-black/30 p-5">
+                  <p className="text-xs font-semibold tracking-wide text-brand-200">{item.step}</p>
+                  <p className="mt-2 text-lg font-semibold text-white">{item.title}</p>
+                  <p className="mt-2 text-sm leading-relaxed text-white/70">{item.description}</p>
                 </div>
               ))}
             </div>
           </div>
-              <div className="absolute bottom-0 left-0 h-64 w-64 -translate-x-1/2 translate-y-1/2 rounded-full bg-brand-500/10 blur-3xl transition-all duration-500 group-hover:bg-brand-500/20" />
-            </div>
+        </section>
 
-            {/* Feature 3 */}
-            <div className="group relative col-span-1 overflow-hidden rounded-3xl border border-border/50 bg-background/50 p-8 shadow-sm transition-all hover:shadow-xl hover:-translate-y-1 dark:bg-zinc-900/50 md:col-span-2">
-              <div className="relative z-10 flex flex-col justify-between h-full gap-6">
-                <div className="flex h-14 w-14 items-center justify-center rounded-2xl bg-brand-50 text-brand-600 dark:bg-brand-900/20 dark:text-brand-300">
-                  <svg
-                    className="w-8 h-8"
-                    fill="none"
-                    viewBox="0 0 24 24"
-                    stroke="currentColor"
-                  >
-                    <path
-                      strokeLinecap="round"
-                      strokeLinejoin="round"
-                      strokeWidth={2}
-                      d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 012 2v14a2 2 0 01-2 2h-2a2 2 0 01-2-2z"
+        {/* ========== CTA SECTION ========== */}
+        <section className="container mx-auto max-w-7xl px-4 pb-20">
+          <div className="relative overflow-hidden rounded-3xl border border-brand-300/30 bg-linear-to-r from-brand-600/30 via-brand-500/20 to-brand-700/30 p-8 backdrop-blur-xl md:p-12">
+            <div
+              aria-hidden="true"
+              className="absolute -right-20 -top-20 h-72 w-72 rounded-full bg-brand-200/25 blur-3xl"
             />
-                  </svg>
-                </div>
+            <div
+              aria-hidden="true"
+              className="absolute -bottom-24 -left-16 h-72 w-72 rounded-full bg-brand-700/30 blur-3xl"
+            />
+
+            <div className="relative z-10 flex flex-col items-center justify-between gap-8 text-center md:flex-row md:text-left">
               <div>
-                  <h3 className="text-2xl font-bold mb-2">스마트 포트폴리오</h3>
-                  <p className="text-muted-foreground text-lg leading-relaxed">
-                    목표 수익률 달성 시 자동으로 이익을 실현하고, MDD를
-                    최소화하여
+                <p className="text-sm font-semibold text-brand-100">수익의 시작은 빠를수록 좋습니다</p>
+                <h2 className="mt-2 text-3xl font-black tracking-tight text-white md:text-4xl">
+                  지금 가입하고,
                   <br />
-                    시장이 하락할 때도 당신의 자산을 안전하게 지킵니다.
+                  내 전략을 오늘부터 자동 실행하세요
+                </h2>
+                <p className="mt-3 text-sm text-white/75 md:text-base">
+                  주린이가 첫 설정부터 실행까지 함께 안내합니다.
                 </p>
               </div>
-              </div>
-              <div className="absolute right-0 bottom-0 h-40 w-40 translate-x-1/3 translate-y-1/3 rounded-full bg-brand-500/10 blur-3xl transition-all duration-500 group-hover:bg-brand-500/20" />
+
+              <Button
+                asChild
+                size="lg"
+                className="group h-14 rounded-full bg-white px-9 text-lg font-bold text-brand-700 shadow-xl shadow-black/35 hover:bg-white/90"
+              >
+                <Link href={primaryCtaHref}>
+                  지금 시작하기
+                  <ArrowRight className="ml-2 h-5 w-5" />
+                </Link>
+              </Button>
             </div>
           </div>
         </section>

app/(main)/dashboard/page.tsx

@@ -1,115 +1,25 @@
 /**
  * @file app/(main)/dashboard/page.tsx
- * @description 사용자 대시보드 메인 페이지 (보호된 라우트)
- * @remarks
- * - [레이어] Pages (Server Component)
- * - [역할] 사용자 자산 현황, 최근 활동, 통계 요약을 보여줌
- * - [권한] 로그인한 사용자만 접근 가능 (Middleware에 의해 보호됨)
+ * @description 로그인 사용자 전용 대시보드 페이지(Server Component)
  */
 
+import { redirect } from "next/navigation";
+import { DashboardContainer } from "@/features/dashboard/components/DashboardContainer";
 import { createClient } from "@/utils/supabase/server";
-import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
-import { Activity, CreditCard, DollarSign, Users } from "lucide-react";
 
 /**
- * 대시보드 페이지 (비동기 서버 컴포넌트)
- * @returns Dashboard Grid Layout
+ * 대시보드 페이지
+ * @returns DashboardContainer UI
+ * @see features/dashboard/components/DashboardContainer.tsx 대시보드 상태 헤더/지수/보유종목 UI를 제공합니다.
  */
 export default async function DashboardPage() {
-  // [Step 1] 세션 확인 (Middleware가 1차 방어하지만, 데이터 접근 시 2차 확인)
+  // 상태 정의: 서버에서 세션을 먼저 확인해 비로그인 접근을 차단합니다.
   const supabase = await createClient();
-  await supabase.auth.getUser();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
 
-  return (
-    <div className="flex-1 space-y-4 p-8 pt-6">
-      <div className="flex items-center justify-between space-y-2">
-        <h2 className="text-3xl font-bold tracking-tight">대시보드</h2>
-      </div>
-      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
-        <Card>
-          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
-            <CardTitle className="text-sm font-medium">총 수익</CardTitle>
-            <DollarSign className="h-4 w-4 text-muted-foreground" />
-          </CardHeader>
-          <CardContent>
-            <div className="text-2xl font-bold">$45,231.89</div>
-            <p className="text-xs text-muted-foreground">지난달 대비 +20.1%</p>
-          </CardContent>
-        </Card>
-        <Card>
-          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
-            <CardTitle className="text-sm font-medium">구독자</CardTitle>
-            <Users className="h-4 w-4 text-muted-foreground" />
-          </CardHeader>
-          <CardContent>
-            <div className="text-2xl font-bold">+2350</div>
-            <p className="text-xs text-muted-foreground">지난달 대비 +180.1%</p>
-          </CardContent>
-        </Card>
-        <Card>
-          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
-            <CardTitle className="text-sm font-medium">판매량</CardTitle>
-            <CreditCard className="h-4 w-4 text-muted-foreground" />
-          </CardHeader>
-          <CardContent>
-            <div className="text-2xl font-bold">+12,234</div>
-            <p className="text-xs text-muted-foreground">지난달 대비 +19%</p>
-          </CardContent>
-        </Card>
-        <Card>
-          <CardHeader className="flex flex-row items-center justify-between space-y-0 pb-2">
-            <CardTitle className="text-sm font-medium">현재 활동 중</CardTitle>
-            <Activity className="h-4 w-4 text-muted-foreground" />
-          </CardHeader>
-          <CardContent>
-            <div className="text-2xl font-bold">+573</div>
-            <p className="text-xs text-muted-foreground">지난 시간 대비 +201</p>
-          </CardContent>
-        </Card>
-      </div>
-      <div className="grid gap-4 grid-cols-1 md:grid-cols-2 lg:grid-cols-7">
-        <Card className="col-span-4">
-          <CardHeader>
-            <CardTitle>개요</CardTitle>
-          </CardHeader>
-          <CardContent className="pl-2">
-            {/* Chart placeholder */}
-            <div className="h-[200px] w-full bg-slate-100 dark:bg-slate-800 rounded-md flex items-center justify-center text-muted-foreground">
-              차트 영역 (준비 중)
-            </div>
-          </CardContent>
-        </Card>
-        <Card className="col-span-3">
-          <CardHeader>
-            <CardTitle>최근 활동</CardTitle>
-            <div className="text-sm text-muted-foreground">
-              이번 달 265건의 거래가 있었습니다.
-            </div>
-          </CardHeader>
-          <CardContent>
-            <div className="space-y-8">
-              <div className="flex items-center">
-                <div className="ml-4 space-y-1">
-                  <p className="text-sm font-medium leading-none">
-                    비트코인 매수
-                  </p>
-                  <p className="text-sm text-muted-foreground">BTC/USDT</p>
-                </div>
-                <div className="ml-auto font-medium">+$1,999.00</div>
-              </div>
-              <div className="flex items-center">
-                <div className="ml-4 space-y-1">
-                  <p className="text-sm font-medium leading-none">
-                    이더리움 매도
-                  </p>
-                  <p className="text-sm text-muted-foreground">ETH/USDT</p>
-                </div>
-                <div className="ml-auto font-medium">+$39.00</div>
-              </div>
-            </div>
-          </CardContent>
-        </Card>
-      </div>
-    </div>
-  );
+  if (!user) redirect("/login");
+
+  return <DashboardContainer />;
 }

app/(main)/layout.tsx

@@ -1,5 +1,5 @@
 import { Header } from "@/features/layout/components/header";
-import { Sidebar } from "@/features/layout/components/sidebar";
+import { MobileBottomNav, Sidebar } from "@/features/layout/components/sidebar";
 import { createClient } from "@/utils/supabase/server";
 
 export default async function MainLayout({
@@ -13,12 +13,13 @@ export default async function MainLayout({
   } = await supabase.auth.getUser();
 
   return (
-    <div className="flex min-h-screen flex-col bg-zinc-50 dark:bg-black">
+    <div className="flex min-h-screen flex-col bg-background">
       <Header user={user} />
-      <div className="flex flex-1">
+      <div className="flex flex-1 pt-16">
         <Sidebar />
-        <main className="flex-1 w-full p-6 md:p-8 lg:p-10">{children}</main>
+        <main className="min-w-0 flex-1 pb-20 md:pb-0">{children}</main>
       </div>
+      <MobileBottomNav />
     </div>
   );
 }

app/(main)/settings/page.tsx

@@ -0,0 +1,26 @@
+/**
+ * @file app/(main)/settings/page.tsx
+ * @description 로그인 사용자 전용 설정 페이지(Server Component)
+ */
+
+import { redirect } from "next/navigation";
+import { SettingsContainer } from "@/features/settings/components/SettingsContainer";
+import { createClient } from "@/utils/supabase/server";
+
+/**
+ * 설정 페이지
+ * @returns SettingsContainer UI
+ * @see features/settings/components/SettingsContainer.tsx KIS 인증 설정 UI를 제공합니다.
+ */
+export default async function SettingsPage() {
+  // 상태 정의: 서버에서 세션을 먼저 확인해 비로그인 접근을 차단합니다.
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
+  if (!user) redirect("/login");
+
+  return <SettingsContainer />;
+}
+

app/(main)/trade/page.tsx

@@ -0,0 +1,26 @@
+/**
+ * @file app/(main)/trade/page.tsx
+ * @description 로그인 사용자 전용 트레이딩 페이지(Server Component)
+ */
+
+import { redirect } from "next/navigation";
+import { TradeContainer } from "@/features/trade/components/TradeContainer";
+import { createClient } from "@/utils/supabase/server";
+
+/**
+ * 트레이딩 페이지
+ * @returns TradeContainer UI
+ * @see features/trade/components/TradeContainer.tsx 종목 검색/차트/호가/주문 기능을 제공합니다.
+ */
+export default async function TradePage() {
+  // 상태 정의: 서버에서 세션을 먼저 확인해 비로그인 접근을 차단합니다.
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
+  if (!user) redirect("/login");
+
+  return <TradeContainer />;
+}
+

app/api/kis/domestic/_shared.ts

@@ -0,0 +1,45 @@
+import { parseKisAccountParts } from "@/lib/kis/account";
+import {
+  normalizeTradingEnv,
+  type KisCredentialInput,
+} from "@/lib/kis/config";
+
+/**
+ * @description 요청 헤더에서 KIS 키를 읽어옵니다.
+ * @param headers 요청 헤더
+ * @returns KIS 인증 입력값
+ * @see app/api/kis/domestic/balance/route.ts 대시보드 잔고 API 인증키 파싱
+ * @see app/api/kis/domestic/indices/route.ts 대시보드 지수 API 인증키 파싱
+ */
+export function readKisCredentialsFromHeaders(headers: Headers): KisCredentialInput {
+  const appKey = headers.get("x-kis-app-key")?.trim();
+  const appSecret = headers.get("x-kis-app-secret")?.trim();
+  const tradingEnv = normalizeTradingEnv(
+    headers.get("x-kis-trading-env") ?? undefined,
+  );
+
+  return {
+    appKey,
+    appSecret,
+    tradingEnv,
+  };
+}
+
+/**
+ * @description 요청 헤더(또는 서버 환경변수)에서 계좌번호(8-2)를 읽어옵니다.
+ * @param headers 요청 헤더
+ * @returns 계좌번호 파트(8 + 2) 또는 null
+ * @see app/api/kis/domestic/balance/route.ts 잔고 조회 시 필수 계좌정보 파싱
+ */
+export function readKisAccountParts(headers: Headers) {
+  const headerAccountNo = headers.get("x-kis-account-no");
+  const headerAccountProductCode = headers.get("x-kis-account-product-code");
+
+  const envAccountNo = process.env.KIS_ACCOUNT_NO;
+  const envAccountProductCode = process.env.KIS_ACCOUNT_PRODUCT_CODE;
+
+  return (
+    parseKisAccountParts(headerAccountNo, headerAccountProductCode) ??
+    parseKisAccountParts(envAccountNo, envAccountProductCode)
+  );
+}

app/api/kis/domestic/activity/route.ts

@@ -0,0 +1,69 @@
+import { NextResponse } from "next/server";
+import type { DashboardActivityResponse } from "@/features/dashboard/types/dashboard.types";
+import { hasKisConfig, normalizeTradingEnv } from "@/lib/kis/config";
+import { getDomesticDashboardActivity } from "@/lib/kis/dashboard";
+import {
+  readKisAccountParts,
+  readKisCredentialsFromHeaders,
+} from "@/app/api/kis/domestic/_shared";
+
+/**
+ * @file app/api/kis/domestic/activity/route.ts
+ * @description 국내주식 주문내역/매매일지 조회 API
+ */
+
+/**
+ * 대시보드 하단(주문내역/매매일지) 조회 API
+ * @returns 주문내역 목록 + 매매일지 목록/요약
+ * @remarks UI 흐름: DashboardContainer -> useDashboardData -> /api/kis/domestic/activity -> ActivitySection 렌더링
+ * @see features/dashboard/hooks/use-dashboard-data.ts 대시보드 초기 로드/새로고침에서 호출합니다.
+ * @see features/dashboard/components/ActivitySection.tsx 주문내역/매매일지 섹션 렌더링
+ */
+export async function GET(request: Request) {
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        error: "KIS API 키 설정이 필요합니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  const account = readKisAccountParts(request.headers);
+  if (!account) {
+    return NextResponse.json(
+      {
+        error:
+          "계좌번호가 필요합니다. 설정에서 계좌번호(예: 12345678-01)를 입력해 주세요.",
+      },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const result = await getDomesticDashboardActivity(account, credentials);
+    const response: DashboardActivityResponse = {
+      source: "kis",
+      tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+      orders: result.orders,
+      tradeJournal: result.tradeJournal,
+      journalSummary: result.journalSummary,
+      warnings: result.warnings,
+      fetchedAt: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      headers: {
+        "cache-control": "no-store",
+      },
+    });
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "주문내역/매매일지 조회 중 오류가 발생했습니다.";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}

app/api/kis/domestic/balance/route.ts

@@ -0,0 +1,65 @@
+import { NextResponse } from "next/server";
+import type { DashboardBalanceResponse } from "@/features/dashboard/types/dashboard.types";
+import { hasKisConfig, normalizeTradingEnv } from "@/lib/kis/config";
+import { getDomesticDashboardBalance } from "@/lib/kis/dashboard";
+import {
+  readKisAccountParts,
+  readKisCredentialsFromHeaders,
+} from "@/app/api/kis/domestic/_shared";
+
+/**
+ * @file app/api/kis/domestic/balance/route.ts
+ * @description 국내주식 계좌 잔고/보유종목 조회 API
+ */
+
+/**
+ * 대시보드 잔고 조회 API
+ * @returns 총자산/손익/보유종목 목록
+ * @see features/dashboard/hooks/use-dashboard-data.ts 대시보드 초기 로드/새로고침에서 호출합니다.
+ */
+export async function GET(request: Request) {
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        error: "KIS API 키 설정이 필요합니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  const account = readKisAccountParts(request.headers);
+  if (!account) {
+    return NextResponse.json(
+      {
+        error:
+          "계좌번호가 필요합니다. 설정에서 계좌번호(예: 12345678-01)를 입력해 주세요.",
+      },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const result = await getDomesticDashboardBalance(account, credentials);
+    const response: DashboardBalanceResponse = {
+      source: "kis",
+      tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+      summary: result.summary,
+      holdings: result.holdings,
+      fetchedAt: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      headers: {
+        "cache-control": "no-store",
+      },
+    });
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "잔고 조회 중 오류가 발생했습니다.";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}

app/api/kis/domestic/chart/route.ts

@@ -0,0 +1,98 @@
+import type {
+  DashboardChartTimeframe,
+  DashboardStockChartResponse,
+} from "@/features/trade/types/trade.types";
+import type { KisCredentialInput } from "@/lib/kis/config";
+import { hasKisConfig, normalizeTradingEnv } from "@/lib/kis/config";
+import { getDomesticChart } from "@/lib/kis/domestic";
+import { NextRequest, NextResponse } from "next/server";
+
+const VALID_TIMEFRAMES: DashboardChartTimeframe[] = [
+  "1m",
+  "30m",
+  "1h",
+  "1d",
+  "1w",
+];
+
+/**
+ * @file app/api/kis/domestic/chart/route.ts
+ * @description 국내주식 차트(분봉/일봉/주봉) 조회 API
+ */
+export async function GET(request: NextRequest) {
+  const { searchParams } = new URL(request.url);
+  const symbol = (searchParams.get("symbol") ?? "").trim();
+  const timeframe = (
+    searchParams.get("timeframe") ?? "1d"
+  ).trim() as DashboardChartTimeframe;
+  const cursor = (searchParams.get("cursor") ?? "").trim() || undefined;
+
+  if (!/^\d{6}$/.test(symbol)) {
+    return NextResponse.json(
+      { error: "symbol은 6자리 숫자여야 합니다." },
+      { status: 400 },
+    );
+  }
+
+  if (!VALID_TIMEFRAMES.includes(timeframe)) {
+    return NextResponse.json(
+      { error: "지원하지 않는 timeframe입니다." },
+      { status: 400 },
+    );
+  }
+
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        error:
+          "대시보드 상단에서 KIS API 키를 입력하고 검증해 주세요. 키 정보가 없어서 차트를 조회할 수 없습니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const chart = await getDomesticChart(
+      symbol,
+      timeframe,
+      credentials,
+      cursor,
+    );
+
+    const response: DashboardStockChartResponse = {
+      symbol,
+      timeframe,
+      candles: chart.candles,
+      nextCursor: chart.nextCursor,
+      hasMore: chart.hasMore,
+      fetchedAt: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      headers: {
+        "cache-control": "no-store",
+      },
+    });
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "KIS 차트 조회 중 오류가 발생했습니다.";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
+
+function readKisCredentialsFromHeaders(headers: Headers): KisCredentialInput {
+  const appKey = headers.get("x-kis-app-key")?.trim();
+  const appSecret = headers.get("x-kis-app-secret")?.trim();
+  const tradingEnv = normalizeTradingEnv(
+    headers.get("x-kis-trading-env") ?? undefined,
+  );
+
+  return {
+    appKey,
+    appSecret,
+    tradingEnv,
+  };
+}

app/api/kis/domestic/indices/route.ts

@@ -0,0 +1,50 @@
+import { NextResponse } from "next/server";
+import type { DashboardIndicesResponse } from "@/features/dashboard/types/dashboard.types";
+import { hasKisConfig, normalizeTradingEnv } from "@/lib/kis/config";
+import { getDomesticDashboardIndices } from "@/lib/kis/dashboard";
+import { readKisCredentialsFromHeaders } from "@/app/api/kis/domestic/_shared";
+
+/**
+ * @file app/api/kis/domestic/indices/route.ts
+ * @description 국내 주요 지수(KOSPI/KOSDAQ) 조회 API
+ */
+
+/**
+ * 대시보드 지수 조회 API
+ * @returns 코스피/코스닥 지수 목록
+ * @see features/dashboard/hooks/use-dashboard-data.ts 대시보드 초기 로드/주기 갱신에서 호출합니다.
+ */
+export async function GET(request: Request) {
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        error: "KIS API 키 설정이 필요합니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const items = await getDomesticDashboardIndices(credentials);
+    const response: DashboardIndicesResponse = {
+      source: "kis",
+      tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+      items,
+      fetchedAt: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      headers: {
+        "cache-control": "no-store",
+      },
+    });
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "지수 조회 중 오류가 발생했습니다.";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}

app/api/kis/domestic/order-cash/route.ts

@@ -0,0 +1,104 @@
+import { NextRequest, NextResponse } from "next/server";
+import { executeOrderCash } from "@/lib/kis/trade";
+import {
+  DashboardStockCashOrderRequest,
+  DashboardStockCashOrderResponse,
+} from "@/features/trade/types/trade.types";
+import {
+  KisCredentialInput,
+  hasKisConfig,
+  normalizeTradingEnv,
+} from "@/lib/kis/config";
+
+/**
+ * @file app/api/kis/domestic/order-cash/route.ts
+ * @description 국내주식 현금 주문 API
+ */
+
+export async function POST(request: NextRequest) {
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+        message: "KIS API 키 설정이 필요합니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const body = (await request.json()) as DashboardStockCashOrderRequest;
+
+    // TODO: Validate body fields (symbol, quantity, price, etc.)
+    if (
+      !body.symbol ||
+      !body.accountNo ||
+      !body.accountProductCode ||
+      body.quantity <= 0
+    ) {
+      return NextResponse.json(
+        {
+          ok: false,
+          tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+          message:
+            "주문 정보가 올바르지 않습니다. (종목코드, 계좌번호, 수량 확인)",
+        },
+        { status: 400 },
+      );
+    }
+
+    const output = await executeOrderCash(
+      {
+        symbol: body.symbol,
+        side: body.side,
+        orderType: body.orderType,
+        quantity: body.quantity,
+        price: body.price,
+        accountNo: body.accountNo,
+        accountProductCode: body.accountProductCode,
+      },
+      credentials,
+    );
+
+    const response: DashboardStockCashOrderResponse = {
+      ok: true,
+      tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+      message: "주문이 전송되었습니다.",
+      orderNo: output.ODNO,
+      orderTime: output.ORD_TMD,
+      orderOrgNo: output.KRX_FWDG_ORD_ORGNO,
+    };
+
+    return NextResponse.json(response);
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "주문 전송 중 오류가 발생했습니다.";
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+        message,
+      },
+      { status: 500 },
+    );
+  }
+}
+
+function readKisCredentialsFromHeaders(headers: Headers): KisCredentialInput {
+  const appKey = headers.get("x-kis-app-key")?.trim();
+  const appSecret = headers.get("x-kis-app-secret")?.trim();
+  const tradingEnv = normalizeTradingEnv(
+    headers.get("x-kis-trading-env") ?? undefined,
+  );
+
+  return {
+    appKey,
+    appSecret,
+    tradingEnv,
+  };
+}

app/api/kis/domestic/orderbook/route.ts

@@ -0,0 +1,165 @@
+import { NextRequest, NextResponse } from "next/server";
+import {
+  getDomesticOrderBook,
+  KisDomesticOrderBookOutput,
+} from "@/lib/kis/domestic";
+import { DashboardStockOrderBookResponse } from "@/features/trade/types/trade.types";
+import {
+  KisCredentialInput,
+  hasKisConfig,
+  normalizeTradingEnv,
+} from "@/lib/kis/config";
+import {
+  DOMESTIC_KIS_SESSION_OVERRIDE_HEADER,
+  parseDomesticKisSession,
+} from "@/lib/kis/domestic-market-session";
+
+/**
+ * @file app/api/kis/domestic/orderbook/route.ts
+ * @description 국내주식 호가 조회 API
+ */
+
+export async function GET(request: NextRequest) {
+  const { searchParams } = new URL(request.url);
+  const symbol = (searchParams.get("symbol") ?? "").trim();
+
+  if (!/^\d{6}$/.test(symbol)) {
+    return NextResponse.json(
+      { error: "symbol은 6자리 숫자여야 합니다." },
+      { status: 400 },
+    );
+  }
+
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        error: "KIS API 키 설정이 필요합니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  try {
+    const sessionOverride = readSessionOverrideFromHeaders(request.headers);
+    const raw = await getDomesticOrderBook(symbol, credentials, {
+      sessionOverride,
+    });
+
+    const levels = Array.from({ length: 10 }, (_, i) => {
+      const idx = i + 1;
+      return {
+        askPrice: readOrderBookNumber(raw, `askp${idx}`, `ovtm_untp_askp${idx}`),
+        bidPrice: readOrderBookNumber(raw, `bidp${idx}`, `ovtm_untp_bidp${idx}`),
+        askSize: readOrderBookNumber(
+          raw,
+          `askp_rsqn${idx}`,
+          `ovtm_untp_askp_rsqn${idx}`,
+        ),
+        bidSize: readOrderBookNumber(raw, ...resolveBidSizeKeys(idx)),
+      };
+    });
+
+    const response: DashboardStockOrderBookResponse = {
+      symbol,
+      source: "kis",
+      levels,
+      totalAskSize: readOrderBookNumber(
+        raw,
+        "total_askp_rsqn",
+        "ovtm_untp_total_askp_rsqn",
+        "ovtm_total_askp_rsqn",
+      ),
+      totalBidSize: readOrderBookNumber(
+        raw,
+        "total_bidp_rsqn",
+        "ovtm_untp_total_bidp_rsqn",
+        "ovtm_total_bidp_rsqn",
+      ),
+      businessHour: readOrderBookString(raw, "bsop_hour", "ovtm_untp_last_hour"),
+      hourClassCode: readOrderBookString(raw, "hour_cls_code"),
+      tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+      fetchedAt: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      headers: {
+        "cache-control": "no-store",
+      },
+    });
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "호가 조회 중 오류가 발생했습니다.";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
+
+function readKisCredentialsFromHeaders(headers: Headers): KisCredentialInput {
+  const appKey = headers.get("x-kis-app-key")?.trim();
+  const appSecret = headers.get("x-kis-app-secret")?.trim();
+  const tradingEnv = normalizeTradingEnv(
+    headers.get("x-kis-trading-env") ?? undefined,
+  );
+
+  return {
+    appKey,
+    appSecret,
+    tradingEnv,
+  };
+}
+
+function readSessionOverrideFromHeaders(headers: Headers) {
+  if (process.env.NODE_ENV === "production") return null;
+  const raw = headers.get(DOMESTIC_KIS_SESSION_OVERRIDE_HEADER);
+  return parseDomesticKisSession(raw);
+}
+
+/**
+ * @description 호가 응답 필드를 대소문자 모두 허용해 숫자로 읽습니다.
+ * @see app/api/kis/domestic/orderbook/route.ts GET에서 output/output1 키 차이 방어 로직으로 사용합니다.
+ */
+function readOrderBookNumber(raw: KisDomesticOrderBookOutput, ...keys: string[]) {
+  const record = raw as Record<string, unknown>;
+  const value = resolveOrderBookValue(record, keys) ?? "0";
+  const normalized =
+    typeof value === "string"
+      ? value.replaceAll(",", "").trim()
+      : String(value ?? "0");
+  const parsed = Number(normalized);
+  return Number.isFinite(parsed) ? parsed : 0;
+}
+
+/**
+ * @description 호가 응답 필드를 문자열로 읽습니다.
+ * @see app/api/kis/domestic/orderbook/route.ts GET 응답 생성 시 businessHour/hourClassCode 추출
+ */
+function readOrderBookString(raw: KisDomesticOrderBookOutput, ...keys: string[]) {
+  const record = raw as Record<string, unknown>;
+  const value = resolveOrderBookValue(record, keys);
+  if (value === undefined || value === null) return undefined;
+  const text = String(value).trim();
+  return text.length > 0 ? text : undefined;
+}
+
+function resolveOrderBookValue(record: Record<string, unknown>, keys: string[]) {
+  for (const key of keys) {
+    const direct = record[key];
+    if (direct !== undefined && direct !== null) return direct;
+
+    const upper = record[key.toUpperCase()];
+    if (upper !== undefined && upper !== null) return upper;
+  }
+
+  return undefined;
+}
+
+function resolveBidSizeKeys(index: number) {
+  if (index === 2) {
+    return [`bidp_rsqn${index}`, `ovtm_untp_bidp_rsqn${index}`, "ovtm_untp_bidp_rsqn"];
+  }
+
+  return [`bidp_rsqn${index}`, `ovtm_untp_bidp_rsqn${index}`];
+}

app/api/kis/domestic/overview/route.ts

@@ -0,0 +1,94 @@
+import { KOREAN_STOCK_INDEX } from "@/features/trade/data/korean-stocks";
+import type { DashboardStockOverviewResponse } from "@/features/trade/types/trade.types";
+import type { KisCredentialInput } from "@/lib/kis/config";
+import { hasKisConfig, normalizeTradingEnv } from "@/lib/kis/config";
+import { getDomesticOverview } from "@/lib/kis/domestic";
+import { NextRequest, NextResponse } from "next/server";
+import {
+  DOMESTIC_KIS_SESSION_OVERRIDE_HEADER,
+  parseDomesticKisSession,
+} from "@/lib/kis/domestic-market-session";
+
+/**
+ * @file app/api/kis/domestic/overview/route.ts
+ * @description 국내주식 종목 상세(현재가 + 차트) API
+ */
+
+/**
+ * 국내주식 종목 상세 API
+ * @param request query string의 symbol(6자리 종목코드) 사용
+ * @returns 대시보드 상세 모델
+ */
+export async function GET(request: NextRequest) {
+  const { searchParams } = new URL(request.url);
+  const symbol = (searchParams.get("symbol") ?? "").trim();
+
+  if (!/^\d{6}$/.test(symbol)) {
+    return NextResponse.json({ error: "symbol은 6자리 숫자여야 합니다." }, { status: 400 });
+  }
+
+  const credentials = readKisCredentialsFromHeaders(request.headers);
+
+  if (!hasKisConfig(credentials)) {
+    return NextResponse.json(
+      {
+        error:
+          "대시보드 상단에서 KIS API 키를 입력하고 검증해 주세요. 키 정보가 없어서 시세를 조회할 수 없습니다.",
+      },
+      { status: 400 },
+    );
+  }
+
+  const fallbackMeta = KOREAN_STOCK_INDEX.find((item) => item.symbol === symbol);
+
+  try {
+    const sessionOverride = readSessionOverrideFromHeaders(request.headers);
+    const overview = await getDomesticOverview(
+      symbol,
+      fallbackMeta,
+      credentials,
+      { sessionOverride },
+    );
+
+    const response: DashboardStockOverviewResponse = {
+      stock: overview.stock,
+      source: "kis",
+      priceSource: overview.priceSource,
+      marketPhase: overview.marketPhase,
+      tradingEnv: normalizeTradingEnv(credentials.tradingEnv),
+      fetchedAt: new Date().toISOString(),
+    };
+
+    return NextResponse.json(response, {
+      headers: {
+        "cache-control": "no-store",
+      },
+    });
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "KIS 조회 중 오류가 발생했습니다.";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
+
+/**
+ * 요청 헤더에서 KIS 키를 읽어옵니다.
+ * @param headers 요청 헤더
+ * @returns credentials
+ */
+function readKisCredentialsFromHeaders(headers: Headers): KisCredentialInput {
+  const appKey = headers.get("x-kis-app-key")?.trim();
+  const appSecret = headers.get("x-kis-app-secret")?.trim();
+  const tradingEnv = normalizeTradingEnv(headers.get("x-kis-trading-env") ?? undefined);
+
+  return {
+    appKey,
+    appSecret,
+    tradingEnv,
+  };
+}
+
+function readSessionOverrideFromHeaders(headers: Headers) {
+  if (process.env.NODE_ENV === "production") return null;
+  const raw = headers.get(DOMESTIC_KIS_SESSION_OVERRIDE_HEADER);
+  return parseDomesticKisSession(raw);
+}

app/api/kis/domestic/search/route.ts

@@ -0,0 +1,108 @@
+import { KOREAN_STOCK_INDEX } from "@/features/trade/data/korean-stocks";
+import type {
+  DashboardStockSearchItem,
+  DashboardStockSearchResponse,
+  KoreanStockIndexItem,
+} from "@/features/trade/types/trade.types";
+import { NextRequest, NextResponse } from "next/server";
+
+const SEARCH_LIMIT = 10;
+
+/**
+ * @file app/api/kis/domestic/search/route.ts
+ * @description 국내주식 종목명/종목코드 검색 API
+ * @remarks
+ * - [레이어] API Route
+ * - [사용자 행동] 대시보드 검색창 엔터/검색 버튼 클릭 시 호출
+ * - [데이터 흐름] dashboard-main.tsx -> /api/kis/domestic/search -> KOREAN_STOCK_INDEX 필터/정렬 -> JSON 응답
+ * - [연관 파일] features/trade/data/korean-stocks.ts, features/trade/components/dashboard-main.tsx
+ * @author jihoon87.lee
+ */
+
+/**
+ * 국내주식 검색 API
+ * @param request query string의 q(검색어) 사용
+ * @returns 종목 검색 결과 목록
+ * @see features/trade/components/dashboard-main.tsx 검색 폼에서 호출합니다.
+ */
+export async function GET(request: NextRequest) {
+  // [Step 1] query string에서 검색어(q)를 읽고 공백을 제거합니다.
+  const { searchParams } = new URL(request.url);
+  const query = (searchParams.get("q") ?? "").trim();
+
+  // [Step 2] 검색어가 없으면 빈 목록을 즉시 반환해 불필요한 계산을 줄입니다.
+  if (!query) {
+    const response: DashboardStockSearchResponse = {
+      query,
+      items: [],
+      total: 0,
+    };
+    return NextResponse.json(response);
+  }
+
+  const normalized = normalizeKeyword(query);
+
+  // [Step 3] 인덱스에서 코드/이름 포함 여부로 1차 필터링 후 점수를 붙입니다.
+  const ranked = KOREAN_STOCK_INDEX.filter((item) => {
+    const symbol = item.symbol;
+    const name = normalizeKeyword(item.name);
+    return symbol.includes(normalized) || name.includes(normalized);
+  })
+    .map((item) => ({
+      item,
+      score: getSearchScore(item, normalized),
+    }))
+    .filter((entry) => entry.score > 0)
+    .sort((a, b) => {
+      if (b.score !== a.score) return b.score - a.score;
+      if (a.item.market !== b.item.market) return a.item.market.localeCompare(b.item.market);
+      return a.item.name.localeCompare(b.item.name, "ko");
+    });
+
+  // [Step 4] UI에서 필요한 최소 필드만 남겨 SEARCH_LIMIT 만큼 반환합니다.
+  const items: DashboardStockSearchItem[] = ranked.slice(0, SEARCH_LIMIT).map(({ item }) => ({
+    symbol: item.symbol,
+    name: item.name,
+    market: item.market,
+  }));
+
+  const response: DashboardStockSearchResponse = {
+    query,
+    items,
+    total: ranked.length,
+  };
+
+  // [Step 5] DashboardStockSearchResponse 형태로 응답합니다.
+  return NextResponse.json(response);
+}
+
+/**
+ * 검색어 정규화(공백 제거 + 소문자)
+ * @param value 원본 문자열
+ * @returns 정규화 문자열
+ * @see app/api/kis/domestic/search/route.ts 한글/영문 검색 비교 정확도를 높입니다.
+ */
+function normalizeKeyword(value: string) {
+  return value.replaceAll(/\s+/g, "").toLowerCase();
+}
+
+/**
+ * 검색 결과 점수 계산
+ * @param item 종목 인덱스 항목
+ * @param normalizedQuery 정규화된 검색어
+ * @returns 높은 값일수록 우선순위 상위
+ * @see app/api/kis/domestic/search/route.ts 검색 결과 정렬 기준으로 사용합니다.
+ */
+function getSearchScore(item: KoreanStockIndexItem, normalizedQuery: string) {
+  const normalizedName = normalizeKeyword(item.name);
+  const normalizedSymbol = item.symbol.toLowerCase();
+
+  if (normalizedSymbol === normalizedQuery) return 120;
+  if (normalizedName === normalizedQuery) return 110;
+  if (normalizedSymbol.startsWith(normalizedQuery)) return 100;
+  if (normalizedName.startsWith(normalizedQuery)) return 90;
+  if (normalizedName.includes(normalizedQuery)) return 70;
+  if (normalizedSymbol.includes(normalizedQuery)) return 60;
+
+  return 0;
+}

app/api/kis/revoke/route.ts

@@ -0,0 +1,58 @@
+import type { DashboardKisRevokeResponse } from "@/features/trade/types/trade.types";
+import { normalizeTradingEnv } from "@/lib/kis/config";
+import {
+  parseKisCredentialRequest,
+  validateKisCredentialInput,
+} from "@/lib/kis/request";
+import { revokeKisAccessToken } from "@/lib/kis/token";
+import { NextRequest, NextResponse } from "next/server";
+
+/**
+ * @file app/api/kis/revoke/route.ts
+ * @description 사용자 입력 KIS API 키로 액세스 토큰을 폐기합니다.
+ */
+
+/**
+ * @description KIS 액세스 토큰 폐기
+ * @see features/settings/components/KisAuthForm.tsx
+ */
+export async function POST(request: NextRequest) {
+  const credentials = await parseKisCredentialRequest(request);
+  const tradingEnv = normalizeTradingEnv(credentials.tradingEnv);
+
+  const invalidMessage = validateKisCredentialInput(credentials);
+  if (invalidMessage) {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message: invalidMessage,
+      } satisfies DashboardKisRevokeResponse,
+      { status: 400 },
+    );
+  }
+
+  try {
+    const message = await revokeKisAccessToken(credentials);
+
+    return NextResponse.json({
+      ok: true,
+      tradingEnv,
+      message,
+    } satisfies DashboardKisRevokeResponse);
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "API 토큰 폐기 중 오류가 발생했습니다.";
+
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message,
+      } satisfies DashboardKisRevokeResponse,
+      { status: 401 },
+    );
+  }
+}

app/api/kis/validate-profile/route.ts

@@ -0,0 +1,235 @@
+import { NextRequest, NextResponse } from "next/server";
+import type { DashboardKisProfileValidateResponse } from "@/features/trade/types/trade.types";
+import { parseKisAccountParts } from "@/lib/kis/account";
+import { kisGet } from "@/lib/kis/client";
+import { normalizeTradingEnv, type KisCredentialInput } from "@/lib/kis/config";
+import { validateKisCredentialInput } from "@/lib/kis/request";
+import { getKisAccessToken } from "@/lib/kis/token";
+
+interface KisProfileValidateRequestBody {
+  appKey?: string;
+  appSecret?: string;
+  tradingEnv?: string;
+  accountNo?: string;
+}
+
+interface BalanceValidationPreset {
+  inqrDvsn: "01" | "02";
+  prcsDvsn: "00" | "01";
+}
+
+const BALANCE_VALIDATION_PRESETS: BalanceValidationPreset[] = [
+  {
+    // 명세 기본 요청값
+    inqrDvsn: "01",
+    prcsDvsn: "01",
+  },
+  {
+    // 일부 계좌/환경 호환값
+    inqrDvsn: "02",
+    prcsDvsn: "00",
+  },
+];
+
+/**
+ * @file app/api/kis/validate-profile/route.ts
+ * @description 한국투자증권 계좌번호를 검증합니다.
+ */
+
+/**
+ * @description 앱키/앱시크릿키 + 계좌번호 유효성을 검증합니다.
+ * @remarks UI 흐름: /settings -> KisProfileForm 확인 버튼 -> /api/kis/validate-profile -> store 반영 -> 대시보드 상태 확장
+ * @see features/settings/components/KisProfileForm.tsx 계좌 확인 버튼에서 호출합니다.
+ * @see features/settings/apis/kis-auth.api.ts validateKisProfile 클라이언트 API 함수
+ */
+export async function POST(request: NextRequest) {
+  let body: KisProfileValidateRequestBody = {};
+
+  try {
+    body = (await request.json()) as KisProfileValidateRequestBody;
+  } catch {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv: "mock",
+        message: "요청 본문(JSON)을 읽을 수 없습니다.",
+      } satisfies Pick<DashboardKisProfileValidateResponse, "ok" | "tradingEnv" | "message">,
+      { status: 400 },
+    );
+  }
+
+  const credentials: KisCredentialInput = {
+    appKey: body.appKey?.trim(),
+    appSecret: body.appSecret?.trim(),
+    tradingEnv: normalizeTradingEnv(body.tradingEnv),
+  };
+
+  const tradingEnv = normalizeTradingEnv(credentials.tradingEnv);
+
+  const invalidCredentialMessage = validateKisCredentialInput(credentials);
+  if (invalidCredentialMessage) {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message: invalidCredentialMessage,
+      } satisfies Pick<DashboardKisProfileValidateResponse, "ok" | "tradingEnv" | "message">,
+      { status: 400 },
+    );
+  }
+
+  const accountNoInput = (body.accountNo ?? "").trim();
+
+  if (!accountNoInput) {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message: "계좌번호를 입력해 주세요.",
+      } satisfies Pick<DashboardKisProfileValidateResponse, "ok" | "tradingEnv" | "message">,
+      { status: 400 },
+    );
+  }
+
+  const accountParts = parseKisAccountParts(accountNoInput);
+  if (!accountParts) {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message: "계좌번호 형식이 올바르지 않습니다. 8-2 형식(예: 12345678-01)으로 입력해 주세요.",
+      } satisfies Pick<DashboardKisProfileValidateResponse, "ok" | "tradingEnv" | "message">,
+      { status: 400 },
+    );
+  }
+
+  try {
+    // 1) 토큰 발급으로 앱키/시크릿 사전 검증
+    try {
+      await getKisAccessToken(credentials);
+    } catch (error) {
+      throw new Error(`앱키 검증 실패: ${toErrorMessage(error)}`);
+    }
+
+    // 2) 계좌 유효성 검증 (실제 계좌 조회 API)
+    try {
+      await validateAccountByBalanceApi(
+        accountParts.accountNo,
+        accountParts.accountProductCode,
+        credentials,
+      );
+    } catch (error) {
+      throw new Error(`계좌 검증 실패: ${toErrorMessage(error)}`);
+    }
+
+    const normalizedAccountNo = `${accountParts.accountNo}-${accountParts.accountProductCode}`;
+
+    return NextResponse.json({
+      ok: true,
+      tradingEnv,
+      message: "계좌번호 검증이 완료되었습니다.",
+      account: {
+        normalizedAccountNo,
+      },
+    } satisfies DashboardKisProfileValidateResponse);
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "계좌 검증 중 오류가 발생했습니다.";
+
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message,
+      } satisfies Pick<DashboardKisProfileValidateResponse, "ok" | "tradingEnv" | "message">,
+      { status: 400 },
+    );
+  }
+}
+
+/**
+ * @description 계좌번호로 잔고 조회 API를 호출해 유효성을 확인합니다.
+ * @param accountNo 계좌번호 앞 8자리
+ * @param accountProductCode 계좌번호 뒤 2자리
+ * @param credentials KIS 인증 정보
+ * @see app/api/kis/validate-profile/route.ts POST
+ */
+async function validateAccountByBalanceApi(
+  accountNo: string,
+  accountProductCode: string,
+  credentials: KisCredentialInput,
+) {
+  const trId = normalizeTradingEnv(credentials.tradingEnv) === "real" ? "TTTC8434R" : "VTTC8434R";
+  const attemptErrors: string[] = [];
+
+  for (const preset of BALANCE_VALIDATION_PRESETS) {
+    try {
+      const response = await kisGet<unknown>(
+        "/uapi/domestic-stock/v1/trading/inquire-balance",
+        trId,
+        {
+          CANO: accountNo,
+          ACNT_PRDT_CD: accountProductCode,
+          AFHR_FLPR_YN: "N",
+          OFL_YN: "",
+          INQR_DVSN: preset.inqrDvsn,
+          UNPR_DVSN: "01",
+          FUND_STTL_ICLD_YN: "N",
+          FNCG_AMT_AUTO_RDPT_YN: "N",
+          PRCS_DVSN: preset.prcsDvsn,
+          CTX_AREA_FK100: "",
+          CTX_AREA_NK100: "",
+        },
+        credentials,
+      );
+
+      validateInquireBalanceResponse(response);
+      return;
+    } catch (error) {
+      attemptErrors.push(
+        `INQR_DVSN=${preset.inqrDvsn}, PRCS_DVSN=${preset.prcsDvsn}: ${toErrorMessage(error)}`,
+      );
+    }
+  }
+
+  throw new Error(
+    `계좌 확인 요청이 모두 실패했습니다. ${attemptErrors.join(" | ")}`,
+  );
+}
+
+/**
+ * @description 주식잔고조회 응답 구조를 최소 검증합니다.
+ * @param response KIS 원본 응답
+ * @see app/api/kis/validate-profile/route.ts validateAccountByBalanceApi
+ */
+function validateInquireBalanceResponse(
+  response: {
+    output1?: unknown;
+    output2?: unknown;
+  },
+) {
+  const output1Ok =
+    Array.isArray(response.output1) ||
+    (response.output1 !== null && typeof response.output1 === "object");
+  const output2Ok =
+    Array.isArray(response.output2) ||
+    (response.output2 !== null && typeof response.output2 === "object");
+
+  if (!output1Ok && !output2Ok) {
+    throw new Error("응답에 output1/output2가 없습니다. 요청 파라미터를 확인해 주세요.");
+  }
+}
+
+/**
+ * @description Error 객체를 사용자 표시용 문자열로 변환합니다.
+ * @param error unknown 에러
+ * @returns 메시지 문자열
+ * @see app/api/kis/validate-profile/route.ts POST
+ */
+function toErrorMessage(error: unknown) {
+  return error instanceof Error
+    ? error.message
+    : "알 수 없는 오류가 발생했습니다.";
+}

app/api/kis/validate/route.ts

@@ -0,0 +1,58 @@
+import type { DashboardKisValidateResponse } from "@/features/trade/types/trade.types";
+import { normalizeTradingEnv } from "@/lib/kis/config";
+import {
+  parseKisCredentialRequest,
+  validateKisCredentialInput,
+} from "@/lib/kis/request";
+import { getKisAccessToken } from "@/lib/kis/token";
+import { NextRequest, NextResponse } from "next/server";
+
+/**
+ * @file app/api/kis/validate/route.ts
+ * @description 사용자 입력 KIS API 키를 검증합니다.
+ */
+
+/**
+ * @description 액세스 토큰 발급 성공 여부로 API 키를 검증합니다.
+ * @see features/settings/components/KisAuthForm.tsx
+ */
+export async function POST(request: NextRequest) {
+  const credentials = await parseKisCredentialRequest(request);
+  const tradingEnv = normalizeTradingEnv(credentials.tradingEnv);
+
+  const invalidMessage = validateKisCredentialInput(credentials);
+  if (invalidMessage) {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message: invalidMessage,
+      } satisfies DashboardKisValidateResponse,
+      { status: 400 },
+    );
+  }
+
+  try {
+    await getKisAccessToken(credentials);
+
+    return NextResponse.json({
+      ok: true,
+      tradingEnv,
+      message: "API 키 검증이 완료되었습니다. (토큰 발급 성공)",
+    } satisfies DashboardKisValidateResponse);
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "API 키 검증 중 오류가 발생했습니다.";
+
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message,
+      } satisfies DashboardKisValidateResponse,
+      { status: 401 },
+    );
+  }
+}

app/api/kis/ws/approval/route.ts

@@ -0,0 +1,61 @@
+import type { DashboardKisWsApprovalResponse } from "@/features/trade/types/trade.types";
+import { getKisApprovalKey, resolveKisWebSocketUrl } from "@/lib/kis/approval";
+import { normalizeTradingEnv } from "@/lib/kis/config";
+import {
+  parseKisCredentialRequest,
+  validateKisCredentialInput,
+} from "@/lib/kis/request";
+import { NextRequest, NextResponse } from "next/server";
+
+/**
+ * @file app/api/kis/ws/approval/route.ts
+ * @description KIS 웹소켓 승인키와 WS URL을 발급합니다.
+ */
+
+/**
+ * @description 실시간 웹소켓 연결 정보를 발급합니다.
+ * @see features/trade/hooks/useKisTradeWebSocket.ts
+ */
+export async function POST(request: NextRequest) {
+  const credentials = await parseKisCredentialRequest(request);
+  const tradingEnv = normalizeTradingEnv(credentials.tradingEnv);
+
+  const invalidMessage = validateKisCredentialInput(credentials);
+  if (invalidMessage) {
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message: invalidMessage,
+      } satisfies DashboardKisWsApprovalResponse,
+      { status: 400 },
+    );
+  }
+
+  try {
+    const approvalKey = await getKisApprovalKey(credentials);
+    const wsUrl = resolveKisWebSocketUrl(credentials);
+
+    return NextResponse.json({
+      ok: true,
+      tradingEnv,
+      approvalKey,
+      wsUrl,
+      message: "웹소켓 승인키 발급이 완료되었습니다.",
+    } satisfies DashboardKisWsApprovalResponse);
+  } catch (error) {
+    const message =
+      error instanceof Error
+        ? error.message
+        : "웹소켓 승인키 발급 중 오류가 발생했습니다.";
+
+    return NextResponse.json(
+      {
+        ok: false,
+        tradingEnv,
+        message,
+      } satisfies DashboardKisWsApprovalResponse,
+      { status: 401 },
+    );
+  }
+}

app/globals.css

@@ -1,4 +1,5 @@
 @import "tailwindcss";
+@plugin "tailwindcss-animate";
 @import "tw-animate-css";
 
 @custom-variant dark (&:is(.dark *));
@@ -38,16 +39,16 @@
   --color-popover: var(--popover);
   --color-card-foreground: var(--card-foreground);
   --color-card: var(--card);
-  --color-brand-50: oklch(0.97 0.02 294);
-  --color-brand-100: oklch(0.93 0.05 294);
-  --color-brand-200: oklch(0.87 0.1 294);
-  --color-brand-300: oklch(0.79 0.15 294);
-  --color-brand-400: oklch(0.7 0.2 294);
-  --color-brand-500: oklch(0.62 0.24 294);
-  --color-brand-600: oklch(0.56 0.26 294);
-  --color-brand-700: oklch(0.49 0.24 295);
-  --color-brand-800: oklch(0.4 0.2 296);
-  --color-brand-900: oklch(0.33 0.14 297);
+  --color-brand-50: var(--brand-50);
+  --color-brand-100: var(--brand-100);
+  --color-brand-200: var(--brand-200);
+  --color-brand-300: var(--brand-300);
+  --color-brand-400: var(--brand-400);
+  --color-brand-500: var(--brand-500);
+  --color-brand-600: var(--brand-600);
+  --color-brand-700: var(--brand-700);
+  --color-brand-800: var(--brand-800);
+  --color-brand-900: var(--brand-900);
   --radius-sm: calc(var(--radius) - 4px);
   --radius-md: calc(var(--radius) - 2px);
   --radius-lg: var(--radius);
@@ -59,7 +60,8 @@
   --animate-gradient-x: gradient-x 15s ease infinite;
 
   @keyframes gradient-x {
-    0%, 100% {
+    0%,
+    100% {
       background-size: 200% 200%;
       background-position: left center;
     }
@@ -71,6 +73,41 @@
 }
 
 :root {
+  /* BRAND PALETTE CONTROL
+   * 이 블록만 수정하면 랜딩/대시보드의 보라 톤이 함께 바뀝니다.
+   */
+  /* 초기 브랜드 보라값(원본 기준) */
+  --brand-50: oklch(0.97 0.02 294);
+  --brand-100: oklch(0.93 0.05 294);
+  --brand-200: oklch(0.87 0.1 294);
+  --brand-300: oklch(0.79 0.15 294);
+  --brand-400: oklch(0.7 0.2 294);
+  --brand-500: oklch(0.62 0.24 294);
+  --brand-600: oklch(0.56 0.26 294);
+  --brand-700: oklch(0.49 0.24 295);
+  --brand-800: oklch(0.4 0.2 296);
+  --brand-900: oklch(0.33 0.14 297);
+
+  /* 차트(canvas): 봉 하락색은 요청대로 파란색 유지 */
+  --brand-chart-background-light: #ffffff;
+  --brand-chart-background-dark: #17131e;
+  --brand-chart-text-light: #6b21a8;
+  --brand-chart-text-dark: #e9d5ff;
+  --brand-chart-border-light: #e9d5ff;
+  --brand-chart-border-dark: rgba(216, 180, 254, 0.3);
+  --brand-chart-grid-light: #f3e8ff;
+  --brand-chart-grid-dark: rgba(216, 180, 254, 0.14);
+  --brand-chart-crosshair-light: #c084fc;
+  --brand-chart-crosshair-dark: rgba(233, 213, 255, 0.75);
+
+  --brand-chart-background: #ffffff;
+  --brand-chart-down: #2563eb;
+  --brand-chart-volume-down: rgba(37, 99, 235, 0.45);
+  --brand-chart-text: #6b21a8;
+  --brand-chart-border: var(--brand-chart-border-light);
+  --brand-chart-grid: var(--brand-chart-grid-light);
+  --brand-chart-crosshair: var(--brand-chart-crosshair-light);
+
   --radius: 0.625rem;
   --background: oklch(1 0 0);
   --foreground: oklch(0.145 0 0);
@@ -78,7 +115,7 @@
   --card-foreground: oklch(0.145 0 0);
   --popover: oklch(1 0 0);
   --popover-foreground: oklch(0.145 0 0);
-  --primary: oklch(0.56 0.26 294);
+  --primary: var(--brand-600);
   --primary-foreground: oklch(0.985 0 0);
   --secondary: oklch(0.97 0 0);
   --secondary-foreground: oklch(0.205 0 0);
@@ -89,7 +126,7 @@
   --destructive: oklch(0.577 0.245 27.325);
   --border: oklch(0.922 0 0);
   --input: oklch(0.922 0 0);
-  --ring: oklch(0.62 0.24 294);
+  --ring: var(--brand-500);
   --chart-1: oklch(0.646 0.222 41.116);
   --chart-2: oklch(0.6 0.118 184.704);
   --chart-3: oklch(0.398 0.07 227.392);
@@ -97,7 +134,7 @@
   --chart-5: oklch(0.769 0.188 70.08);
   --sidebar: oklch(0.985 0 0);
   --sidebar-foreground: oklch(0.145 0 0);
-  --sidebar-primary: oklch(0.56 0.26 294);
+  --sidebar-primary: var(--brand-600);
   --sidebar-primary-foreground: oklch(0.985 0 0);
   --sidebar-accent: oklch(0.97 0 0);
   --sidebar-accent-foreground: oklch(0.205 0 0);
@@ -106,37 +143,45 @@
 }
 
 .dark {
-  --background: oklch(0.145 0 0);
+  /* 다크 모드 시인성 개선: 배경 대비는 유지하고, 카드/보더/보조 텍스트를 더 읽기 쉽게 조정 */
+  --background: oklch(0.17 0 0);
   --foreground: oklch(0.985 0 0);
-  --card: oklch(0.205 0 0);
+  --card: oklch(0.235 0 0);
   --card-foreground: oklch(0.985 0 0);
-  --popover: oklch(0.205 0 0);
+  --popover: oklch(0.235 0 0);
   --popover-foreground: oklch(0.985 0 0);
-  --primary: oklch(0.56 0.26 294);
+  --primary: var(--brand-600);
   --primary-foreground: oklch(0.985 0 0);
-  --secondary: oklch(0.269 0 0);
+  --secondary: oklch(0.285 0 0);
   --secondary-foreground: oklch(0.985 0 0);
-  --muted: oklch(0.269 0 0);
-  --muted-foreground: oklch(0.708 0 0);
-  --accent: oklch(0.269 0 0);
+  --muted: oklch(0.285 0 0);
+  --muted-foreground: oklch(0.83 0 0);
+  --accent: oklch(0.285 0 0);
   --accent-foreground: oklch(0.985 0 0);
   --destructive: oklch(0.704 0.191 22.216);
-  --border: oklch(1 0 0 / 10%);
-  --input: oklch(1 0 0 / 15%);
-  --ring: oklch(0.62 0.24 294);
+  --border: oklch(1 0 0 / 18%);
+  --input: oklch(1 0 0 / 22%);
+  --ring: var(--brand-500);
   --chart-1: oklch(0.488 0.243 264.376);
   --chart-2: oklch(0.696 0.17 162.48);
   --chart-3: oklch(0.769 0.188 70.08);
   --chart-4: oklch(0.627 0.265 303.9);
   --chart-5: oklch(0.645 0.246 16.439);
-  --sidebar: oklch(0.205 0 0);
+  --sidebar: oklch(0.235 0 0);
   --sidebar-foreground: oklch(0.985 0 0);
-  --sidebar-primary: oklch(0.56 0.26 294);
+  --sidebar-primary: var(--brand-600);
   --sidebar-primary-foreground: oklch(0.985 0 0);
-  --sidebar-accent: oklch(0.269 0 0);
+  --sidebar-accent: oklch(0.285 0 0);
   --sidebar-accent-foreground: oklch(0.985 0 0);
-  --sidebar-border: oklch(1 0 0 / 10%);
-  --sidebar-ring: oklch(0.556 0 0);
+  --sidebar-border: oklch(1 0 0 / 18%);
+  --sidebar-ring: oklch(0.78 0 0);
+
+  /* 다크 테마용 차트 배경/격자 대비 */
+  --brand-chart-background: var(--brand-chart-background-dark);
+  --brand-chart-text: var(--brand-chart-text-dark);
+  --brand-chart-border: var(--brand-chart-border-dark);
+  --brand-chart-grid: var(--brand-chart-grid-dark);
+  --brand-chart-crosshair: var(--brand-chart-crosshair-dark);
 }
 
 @layer base {

app/layout.tsx

@@ -13,6 +13,7 @@ import { Geist, Geist_Mono, Outfit } from "next/font/google";
 import { QueryProvider } from "@/providers/query-provider";
 import { ThemeProvider } from "@/components/theme-provider";
 import { SessionManager } from "@/features/auth/components/session-manager";
+import { Toaster } from "sonner";
 import "./globals.css";
 
 const geistSans = Geist({
@@ -32,8 +33,9 @@ const outfit = Outfit({
 });
 
 export const metadata: Metadata = {
-  title: "AutoTrade",
-  description: "Automated Crypto Trading Platform",
+  title: "Jurini - 감이 아닌 전략으로 시작하는 자동매매",
+  description:
+    "주린이를 위한 자동매매 파트너 Jurini. 손실 방어 규칙, 데이터 신호 분석, 실시간 자동 실행으로 초보의 첫 수익 루틴을 만듭니다.",
 };
 
 /**
@@ -61,6 +63,13 @@ export default function RootLayout({
         >
           <SessionManager />
           <QueryProvider>{children}</QueryProvider>
+          <Toaster
+            richColors
+            position="top-right"
+            toastOptions={{
+              duration: 4000,
+            }}
+          />
         </ThemeProvider>
       </body>
     </html>

components/theme-toggle.tsx

@@ -1,9 +1,9 @@
 /**
  * @file components/theme-toggle.tsx
- * @description 라이트/다크/시스템 테마 전환 토글 버튼
+ * @description 라이트/다크 테마 즉시 전환 토글 버튼
  * @remarks
  * - [레이어] Components/UI
- * - [사용자 행동] 버튼 클릭 -> 드롭다운 메뉴 -> 테마 선택 -> 즉시 반영
+ * - [사용자 행동] 버튼 클릭 -> 라이트/다크 즉시 전환
  * - [연관 파일] theme-provider.tsx (next-themes)
  */
 
@@ -12,48 +12,53 @@
 import * as React from "react";
 import { Moon, Sun } from "lucide-react";
 import { useTheme } from "next-themes";
+import { cn } from "@/lib/utils";
 
 import { Button } from "@/components/ui/button";
-import {
-  DropdownMenu,
-  DropdownMenuContent,
-  DropdownMenuItem,
-  DropdownMenuTrigger,
-} from "@/components/ui/dropdown-menu";
+
+interface ThemeToggleProps {
+  className?: string;
+  iconClassName?: string;
+}
 
 /**
  * 테마 토글 컴포넌트
  * @remarks next-themes의 useTheme 훅 사용
- * @returns Dropdown 메뉴 형태의 테마 선택기
+ * @returns 단일 클릭으로 라이트/다크를 전환하는 버튼
+ * @see features/layout/components/header.tsx Header 액션 영역 - 사용자 테마 전환 버튼
  */
-export function ThemeToggle() {
-  const { setTheme } = useTheme();
+export function ThemeToggle({ className, iconClassName }: ThemeToggleProps) {
+  const { resolvedTheme, setTheme } = useTheme();
+
+  const handleToggleTheme = React.useCallback(() => {
+    // 시스템 테마 사용 중에도 현재 화면 기준으로 명확히 라이트/다크를 토글합니다.
+    setTheme(resolvedTheme === "dark" ? "light" : "dark");
+  }, [resolvedTheme, setTheme]);
 
   return (
-    <DropdownMenu modal={false}>
-      {/* ========== 트리거 버튼 ========== */}
-      <DropdownMenuTrigger asChild>
-        <Button variant="ghost" size="icon">
-          {/* 라이트 모드 아이콘 (회전 애니메이션) */}
-          <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
-          {/* 다크 모드 아이콘 (회전 애니메이션) */}
-          <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
+    <Button
+      type="button"
+      variant="ghost"
+      size="icon"
+      className={className}
+      onClick={handleToggleTheme}
+      aria-label="테마 전환"
+    >
+      {/* ========== LIGHT ICON ========== */}
+      <Sun
+        className={cn(
+          "h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0",
+          iconClassName,
+        )}
+      />
+      {/* ========== DARK ICON ========== */}
+      <Moon
+        className={cn(
+          "absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100",
+          iconClassName,
+        )}
+      />
       <span className="sr-only">Toggle theme</span>
     </Button>
-      </DropdownMenuTrigger>
-
-      {/* ========== 메뉴 컨텐츠 (우측 정렬) ========== */}
-      <DropdownMenuContent align="end">
-        <DropdownMenuItem onClick={() => setTheme("light")}>
-          Light
-        </DropdownMenuItem>
-        <DropdownMenuItem onClick={() => setTheme("dark")}>
-          Dark
-        </DropdownMenuItem>
-        <DropdownMenuItem onClick={() => setTheme("system")}>
-          System
-        </DropdownMenuItem>
-      </DropdownMenuContent>
-    </DropdownMenu>
   );
 }

components/ui/badge.tsx

@@ -0,0 +1,48 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+const badgeVariants = cva(
+  "inline-flex items-center justify-center rounded-full border border-transparent px-2 py-0.5 text-xs font-medium w-fit whitespace-nowrap shrink-0 [&>svg]:size-3 gap-1 [&>svg]:pointer-events-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive transition-[color,box-shadow] overflow-hidden",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground [a&]:hover:bg-primary/90",
+        secondary:
+          "bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90",
+        destructive:
+          "bg-destructive text-white [a&]:hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
+        outline:
+          "border-border text-foreground [a&]:hover:bg-accent [a&]:hover:text-accent-foreground",
+        ghost: "[a&]:hover:bg-accent [a&]:hover:text-accent-foreground",
+        link: "text-primary underline-offset-4 [a&]:hover:underline",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function Badge({
+  className,
+  variant = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"span"> &
+  VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "span"
+
+  return (
+    <Comp
+      data-slot="badge"
+      data-variant={variant}
+      className={cn(badgeVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+export { Badge, badgeVariants }

components/ui/scroll-area.tsx

@@ -0,0 +1,58 @@
+"use client"
+
+import * as React from "react"
+import { ScrollArea as ScrollAreaPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function ScrollArea({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.Root>) {
+  return (
+    <ScrollAreaPrimitive.Root
+      data-slot="scroll-area"
+      className={cn("relative", className)}
+      {...props}
+    >
+      <ScrollAreaPrimitive.Viewport
+        data-slot="scroll-area-viewport"
+        className="focus-visible:ring-ring/50 size-full rounded-[inherit] transition-[color,box-shadow] outline-none focus-visible:ring-[3px] focus-visible:outline-1"
+      >
+        {children}
+      </ScrollAreaPrimitive.Viewport>
+      <ScrollBar />
+      <ScrollAreaPrimitive.Corner />
+    </ScrollAreaPrimitive.Root>
+  )
+}
+
+function ScrollBar({
+  className,
+  orientation = "vertical",
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>) {
+  return (
+    <ScrollAreaPrimitive.ScrollAreaScrollbar
+      data-slot="scroll-area-scrollbar"
+      orientation={orientation}
+      className={cn(
+        "flex touch-none p-px transition-colors select-none",
+        orientation === "vertical" &&
+          "h-full w-2.5 border-l border-l-transparent",
+        orientation === "horizontal" &&
+          "h-2.5 flex-col border-t border-t-transparent",
+        className
+      )}
+      {...props}
+    >
+      <ScrollAreaPrimitive.ScrollAreaThumb
+        data-slot="scroll-area-thumb"
+        className="bg-border relative flex-1 rounded-full"
+      />
+    </ScrollAreaPrimitive.ScrollAreaScrollbar>
+  )
+}
+
+export { ScrollArea, ScrollBar }

components/ui/separator.tsx

@@ -1,7 +1,7 @@
 "use client"
 
 import * as React from "react"
-import * as SeparatorPrimitive from "@radix-ui/react-separator"
+import { Separator as SeparatorPrimitive } from "radix-ui"
 
 import { cn } from "@/lib/utils"
 

components/ui/shader-background.tsx

@@ -0,0 +1,244 @@
+"use client";
+
+import { useEffect, useRef } from "react";
+import { cn } from "@/lib/utils";
+
+interface ShaderBackgroundProps {
+  className?: string;
+  opacity?: number;
+}
+
+const VS_SOURCE = `
+  attribute vec4 aVertexPosition;
+  void main() {
+    gl_Position = aVertexPosition;
+  }
+`;
+
+const FS_SOURCE = `
+  precision highp float;
+  uniform vec2 iResolution;
+  uniform float iTime;
+
+  const float overallSpeed = 0.2;
+  const float gridSmoothWidth = 0.015;
+  const float axisWidth = 0.05;
+  const float majorLineWidth = 0.025;
+  const float minorLineWidth = 0.0125;
+  const float majorLineFrequency = 5.0;
+  const float minorLineFrequency = 1.0;
+  const vec4 gridColor = vec4(0.5);
+  const float scale = 5.0;
+  const vec4 lineColor = vec4(0.4, 0.2, 0.8, 1.0);
+  const float minLineWidth = 0.01;
+  const float maxLineWidth = 0.2;
+  const float lineSpeed = 1.0 * overallSpeed;
+  const float lineAmplitude = 1.0;
+  const float lineFrequency = 0.2;
+  const float warpSpeed = 0.2 * overallSpeed;
+  const float warpFrequency = 0.5;
+  const float warpAmplitude = 1.0;
+  const float offsetFrequency = 0.5;
+  const float offsetSpeed = 1.33 * overallSpeed;
+  const float minOffsetSpread = 0.6;
+  const float maxOffsetSpread = 2.0;
+  const int linesPerGroup = 16;
+
+  #define drawCircle(pos, radius, coord) smoothstep(radius + gridSmoothWidth, radius, length(coord - (pos)))
+  #define drawSmoothLine(pos, halfWidth, t) smoothstep(halfWidth, 0.0, abs(pos - (t)))
+  #define drawCrispLine(pos, halfWidth, t) smoothstep(halfWidth + gridSmoothWidth, halfWidth, abs(pos - (t)))
+  #define drawPeriodicLine(freq, width, t) drawCrispLine(freq / 2.0, width, abs(mod(t, freq) - (freq) / 2.0))
+
+  float drawGridLines(float axis) {
+    return drawCrispLine(0.0, axisWidth, axis)
+          + drawPeriodicLine(majorLineFrequency, majorLineWidth, axis)
+          + drawPeriodicLine(minorLineFrequency, minorLineWidth, axis);
+  }
+
+  float drawGrid(vec2 space) {
+    return min(1.0, drawGridLines(space.x) + drawGridLines(space.y));
+  }
+
+  float random(float t) {
+    return (cos(t) + cos(t * 1.3 + 1.3) + cos(t * 1.4 + 1.4)) / 3.0;
+  }
+
+  float getPlasmaY(float x, float horizontalFade, float offset) {
+    return random(x * lineFrequency + iTime * lineSpeed) * horizontalFade * lineAmplitude + offset;
+  }
+
+  void main() {
+    vec2 fragCoord = gl_FragCoord.xy;
+    vec4 fragColor;
+    vec2 uv = fragCoord.xy / iResolution.xy;
+    vec2 space = (fragCoord - iResolution.xy / 2.0) / iResolution.x * 2.0 * scale;
+
+    float horizontalFade = 1.0 - (cos(uv.x * 6.28) * 0.5 + 0.5);
+    float verticalFade = 1.0 - (cos(uv.y * 6.28) * 0.5 + 0.5);
+
+    space.y += random(space.x * warpFrequency + iTime * warpSpeed) * warpAmplitude * (0.5 + horizontalFade);
+    space.x += random(space.y * warpFrequency + iTime * warpSpeed + 2.0) * warpAmplitude * horizontalFade;
+
+    vec4 lines = vec4(0.0);
+    vec4 bgColor1 = vec4(0.1, 0.1, 0.3, 1.0);
+    vec4 bgColor2 = vec4(0.3, 0.1, 0.5, 1.0);
+
+    for(int l = 0; l < linesPerGroup; l++) {
+      float normalizedLineIndex = float(l) / float(linesPerGroup);
+      float offsetTime = iTime * offsetSpeed;
+      float offsetPosition = float(l) + space.x * offsetFrequency;
+      float rand = random(offsetPosition + offsetTime) * 0.5 + 0.5;
+      float halfWidth = mix(minLineWidth, maxLineWidth, rand * horizontalFade) / 2.0;
+      float offset = random(offsetPosition + offsetTime * (1.0 + normalizedLineIndex)) * mix(minOffsetSpread, maxOffsetSpread, horizontalFade);
+      float linePosition = getPlasmaY(space.x, horizontalFade, offset);
+      float line = drawSmoothLine(linePosition, halfWidth, space.y) / 2.0 + drawCrispLine(linePosition, halfWidth * 0.15, space.y);
+
+      float circleX = mod(float(l) + iTime * lineSpeed, 25.0) - 12.0;
+      vec2 circlePosition = vec2(circleX, getPlasmaY(circleX, horizontalFade, offset));
+      float circle = drawCircle(circlePosition, 0.01, space) * 4.0;
+
+      line = line + circle;
+      lines += line * lineColor * rand;
+    }
+
+    fragColor = mix(bgColor1, bgColor2, uv.x);
+    fragColor *= verticalFade;
+    fragColor.a = 1.0;
+    fragColor += lines;
+
+    gl_FragColor = fragColor;
+  }
+`;
+
+/**
+ * @description Compile one shader source.
+ * @see components/ui/shader-background.tsx ShaderBackground useEffect - WebGL init flow
+ */
+function loadShader(gl: WebGLRenderingContext, type: number, source: string) {
+  const shader = gl.createShader(type);
+  if (!shader) return null;
+
+  gl.shaderSource(shader, source);
+  gl.compileShader(shader);
+
+  if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
+    console.error("Shader compile error:", gl.getShaderInfoLog(shader));
+    gl.deleteShader(shader);
+    return null;
+  }
+
+  return shader;
+}
+
+/**
+ * @description Create and link WebGL shader program.
+ * @see components/ui/shader-background.tsx ShaderBackground useEffect - shader program setup
+ */
+function initShaderProgram(gl: WebGLRenderingContext, vertexSource: string, fragmentSource: string) {
+  const vertexShader = loadShader(gl, gl.VERTEX_SHADER, vertexSource);
+  const fragmentShader = loadShader(gl, gl.FRAGMENT_SHADER, fragmentSource);
+  if (!vertexShader || !fragmentShader) return null;
+
+  const shaderProgram = gl.createProgram();
+  if (!shaderProgram) return null;
+
+  gl.attachShader(shaderProgram, vertexShader);
+  gl.attachShader(shaderProgram, fragmentShader);
+  gl.linkProgram(shaderProgram);
+
+  if (!gl.getProgramParameter(shaderProgram, gl.LINK_STATUS)) {
+    console.error("Shader program link error:", gl.getProgramInfoLog(shaderProgram));
+    gl.deleteProgram(shaderProgram);
+    return null;
+  }
+
+  return shaderProgram;
+}
+
+/**
+ * @description Animated shader background canvas.
+ * @param className Tailwind class for canvas.
+ * @param opacity Canvas opacity.
+ * @see https://21st.dev/community/components/thanh/shader-background/default
+ */
+const ShaderBackground = ({ className, opacity = 0.9 }: ShaderBackgroundProps) => {
+  const canvasRef = useRef<HTMLCanvasElement | null>(null);
+
+  useEffect(() => {
+    const canvas = canvasRef.current;
+    if (!canvas) return;
+
+    const gl = canvas.getContext("webgl");
+    if (!gl) {
+      console.warn("WebGL not supported.");
+      return;
+    }
+
+    const shaderProgram = initShaderProgram(gl, VS_SOURCE, FS_SOURCE);
+    if (!shaderProgram) return;
+
+    const positionBuffer = gl.createBuffer();
+    if (!positionBuffer) return;
+
+    gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
+    const positions = [-1.0, -1.0, 1.0, -1.0, -1.0, 1.0, 1.0, 1.0];
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
+
+    const vertexPosition = gl.getAttribLocation(shaderProgram, "aVertexPosition");
+    const resolution = gl.getUniformLocation(shaderProgram, "iResolution");
+    const time = gl.getUniformLocation(shaderProgram, "iTime");
+
+    const resizeCanvas = () => {
+      const dpr = window.devicePixelRatio || 1;
+      const nextWidth = Math.floor(window.innerWidth * dpr);
+      const nextHeight = Math.floor(window.innerHeight * dpr);
+      canvas.width = nextWidth;
+      canvas.height = nextHeight;
+      gl.viewport(0, 0, nextWidth, nextHeight);
+    };
+
+    window.addEventListener("resize", resizeCanvas);
+    resizeCanvas();
+
+    const startTime = Date.now();
+    let frameId = 0;
+
+    const render = () => {
+      const currentTime = (Date.now() - startTime) / 1000;
+
+      gl.clearColor(0.0, 0.0, 0.0, 1.0);
+      gl.clear(gl.COLOR_BUFFER_BIT);
+      gl.useProgram(shaderProgram);
+
+      if (resolution) gl.uniform2f(resolution, canvas.width, canvas.height);
+      if (time) gl.uniform1f(time, currentTime);
+
+      gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
+      gl.vertexAttribPointer(vertexPosition, 2, gl.FLOAT, false, 0, 0);
+      gl.enableVertexAttribArray(vertexPosition);
+      gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
+
+      frameId = requestAnimationFrame(render);
+    };
+
+    frameId = requestAnimationFrame(render);
+
+    return () => {
+      cancelAnimationFrame(frameId);
+      window.removeEventListener("resize", resizeCanvas);
+      gl.deleteBuffer(positionBuffer);
+      gl.deleteProgram(shaderProgram);
+    };
+  }, []);
+
+  return (
+    <canvas
+      ref={canvasRef}
+      aria-hidden="true"
+      className={cn("fixed inset-0 -z-10 h-full w-full", className)}
+      style={{ opacity }}
+    />
+  );
+};
+
+export default ShaderBackground;

components/ui/skeleton.tsx

@@ -0,0 +1,13 @@
+import { cn } from "@/lib/utils"
+
+function Skeleton({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="skeleton"
+      className={cn("bg-accent animate-pulse rounded-md", className)}
+      {...props}
+    />
+  )
+}
+
+export { Skeleton }

components/ui/tabs.tsx

@@ -0,0 +1,91 @@
+"use client"
+
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Tabs as TabsPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Tabs({
+  className,
+  orientation = "horizontal",
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Root>) {
+  return (
+    <TabsPrimitive.Root
+      data-slot="tabs"
+      data-orientation={orientation}
+      orientation={orientation}
+      className={cn(
+        "group/tabs flex gap-2 data-[orientation=horizontal]:flex-col",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const tabsListVariants = cva(
+  "rounded-lg p-[3px] group-data-[orientation=horizontal]/tabs:h-9 data-[variant=line]:rounded-none group/tabs-list text-muted-foreground inline-flex w-fit items-center justify-center group-data-[orientation=vertical]/tabs:h-fit group-data-[orientation=vertical]/tabs:flex-col",
+  {
+    variants: {
+      variant: {
+        default: "bg-muted",
+        line: "gap-1 bg-transparent",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function TabsList({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.List> &
+  VariantProps<typeof tabsListVariants>) {
+  return (
+    <TabsPrimitive.List
+      data-slot="tabs-list"
+      data-variant={variant}
+      className={cn(tabsListVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+function TabsTrigger({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Trigger>) {
+  return (
+    <TabsPrimitive.Trigger
+      data-slot="tabs-trigger"
+      className={cn(
+        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:outline-ring text-foreground/60 hover:text-foreground dark:text-muted-foreground dark:hover:text-foreground relative inline-flex h-[calc(100%-1px)] flex-1 items-center justify-center gap-1.5 rounded-md border border-transparent px-2 py-1 text-sm font-medium whitespace-nowrap transition-all group-data-[orientation=vertical]/tabs:w-full group-data-[orientation=vertical]/tabs:justify-start focus-visible:ring-[3px] focus-visible:outline-1 disabled:pointer-events-none disabled:opacity-50 group-data-[variant=default]/tabs-list:data-[state=active]:shadow-sm group-data-[variant=line]/tabs-list:data-[state=active]:shadow-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "group-data-[variant=line]/tabs-list:bg-transparent group-data-[variant=line]/tabs-list:data-[state=active]:bg-transparent dark:group-data-[variant=line]/tabs-list:data-[state=active]:border-transparent dark:group-data-[variant=line]/tabs-list:data-[state=active]:bg-transparent",
+        "data-[state=active]:bg-background dark:data-[state=active]:text-foreground dark:data-[state=active]:border-input dark:data-[state=active]:bg-input/30 data-[state=active]:text-foreground",
+        "after:bg-foreground after:absolute after:opacity-0 after:transition-opacity group-data-[orientation=horizontal]/tabs:after:inset-x-0 group-data-[orientation=horizontal]/tabs:after:bottom-[-5px] group-data-[orientation=horizontal]/tabs:after:h-0.5 group-data-[orientation=vertical]/tabs:after:inset-y-0 group-data-[orientation=vertical]/tabs:after:-right-1 group-data-[orientation=vertical]/tabs:after:w-0.5 group-data-[variant=line]/tabs-list:data-[state=active]:after:opacity-100",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function TabsContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof TabsPrimitive.Content>) {
+  return (
+    <TabsPrimitive.Content
+      data-slot="tabs-content"
+      className={cn("flex-1 outline-none", className)}
+      {...props}
+    />
+  )
+}
+
+export { Tabs, TabsList, TabsTrigger, TabsContent, tabsListVariants }

doc-rule.md

@@ -1,32 +0,0 @@
-# Antigravity Rules
-
-This document defines the coding and behavior rules for the Antigravity agent.
-
-## General Rules
-
-- **Language**: All output, explanations, and commit messages MUST be in **Korean (한국어)**.
-- **Tone**: Professional, helpful, and concise.
-
-## Documentation Rules
-
-### JSX Comments
-
-- Mandatory use of section comments in JSX to delineate logical blocks.
-- Format: `{/* ========== SECTION NAME ========== */}`
-
-### JSDoc Tags
-
-- **@see**: Mandatory for function/component documentation. Must include calling file, function/event name, and purpose.
-- **@author**: Mandatory file-level tag. Use `@author jihoon87.lee`.
-
-### Inline Comments
-
-- High density of inline comments required for:
-  - State definitions
-  - Event handlers
-  - Complex logic in JSX
-- Balance conciseness with clarity.
-
-## Code Style
-
-- Follow Project-specific linting and formatting rules.

features/auth/components/login-form.tsx

@@ -26,7 +26,6 @@ import { InlineSpinner } from "@/components/ui/loading-spinner";
  */
 export default function LoginForm() {
   // ========== 상태 관리 ==========
-  // 서버와 클라이언트 초기 렌더링을 일치시키기 위해 초기값은 고정
   const [email, setEmail] = useState(() => {
     if (typeof window === "undefined") return "";
     return localStorage.getItem("auto-trade-saved-email") || "";
@@ -37,11 +36,6 @@ export default function LoginForm() {
   });
   const [isLoading, setIsLoading] = useState(false);
 
-  // ========== 마운트 시 localStorage 데이터 복구 ==========
-  // localStorage는 클라이언트 전용 외부 시스템이므로 useEffect에서 동기화하는 것이 올바른 패턴
-  // React 공식 문서: "외부 시스템과 동기화"는 useEffect의 정확한 사용 사례
-  // useState lazy initializer + window guard handles localStorage safely
-
   // ========== 폼 제출 핸들러 ==========
   const handleSubmit = async (e: React.FormEvent<HTMLFormElement>) => {
     e.preventDefault();
@@ -83,7 +77,7 @@ export default function LoginForm() {
             required
             value={email}
             onChange={(e) => setEmail(e.target.value)}
-            className="h-11 transition-all duration-200"
+            className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
           />
         </div>
 
@@ -102,7 +96,7 @@ export default function LoginForm() {
             minLength={8}
             pattern="^(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*[!@#$%^&*]).{8,}$"
             title="비밀번호는 최소 8자 이상, 대문자, 소문자, 숫자, 특수문자를 각각 1개 이상 포함해야 합니다."
-            className="h-11 transition-all duration-200"
+            className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
           />
         </div>
 
@@ -121,10 +115,9 @@ export default function LoginForm() {
               이메일 기억하기
             </Label>
           </div>
-          {/* 비밀번호 찾기 링크 */}
           <Link
             href={AUTH_ROUTES.FORGOT_PASSWORD}
-            className="text-sm font-medium text-gray-700 hover:text-black dark:text-gray-300 dark:hover:text-white"
+            className="text-sm font-medium text-brand-600 transition-colors hover:text-brand-700 dark:text-brand-400 dark:hover:text-brand-300"
           >
             비밀번호 찾기
           </Link>
@@ -134,7 +127,7 @@ export default function LoginForm() {
         <Button
           type="submit"
           disabled={isLoading}
-          className="h-11 w-full bg-linear-to-r from-gray-900 to-black font-semibold shadow-lg transition-all duration-200 hover:from-black hover:to-gray-800 hover:shadow-xl dark:from-white dark:to-gray-100 dark:text-black dark:hover:from-gray-100 dark:hover:to-white"
+          className="h-11 w-full bg-linear-to-r from-brand-500 to-brand-700 font-semibold text-white shadow-lg shadow-brand-500/20 transition-all duration-200 hover:from-brand-600 hover:to-brand-800 hover:shadow-xl hover:shadow-brand-500/25"
           size="lg"
         >
           {isLoading ? (
@@ -148,11 +141,11 @@ export default function LoginForm() {
         </Button>
 
         {/* ========== 회원가입 링크 ========== */}
-        <p className="text-center text-sm text-gray-600 dark:text-gray-400">
+        <p className="text-center text-sm text-muted-foreground">
           계정이 없으신가요?{" "}
           <Link
             href={AUTH_ROUTES.SIGNUP}
-            className="font-semibold text-gray-900 transition-colors hover:text-black dark:text-gray-100 dark:hover:text-white"
+            className="font-semibold text-brand-600 transition-colors hover:text-brand-700 dark:text-brand-400 dark:hover:text-brand-300"
           >
             회원가입 하기
           </Link>
@@ -162,7 +155,7 @@ export default function LoginForm() {
       {/* ========== 소셜 로그인 구분선 ========== */}
       <div className="relative">
         <Separator className="my-6" />
-        <span className="absolute left-1/2 top-1/2 -translate-x-1/2 -translate-y-1/2 bg-white px-3 text-xs font-medium text-gray-500 dark:bg-gray-900 dark:text-gray-400">
+        <span className="absolute left-1/2 top-1/2 -translate-x-1/2 -translate-y-1/2 bg-white px-3 text-xs font-medium text-muted-foreground dark:bg-brand-950">
           또는 소셜 로그인
         </span>
       </div>
@@ -174,7 +167,7 @@ export default function LoginForm() {
           <Button
             type="submit"
             variant="outline"
-            className="h-11 w-full border-gray-200 bg-white shadow-sm transition-all duration-200 hover:bg-gray-50 hover:shadow-md dark:border-gray-700 dark:bg-gray-800 dark:hover:bg-gray-750"
+            className="h-11 w-full border-brand-200/50 bg-white shadow-sm transition-all duration-200 hover:bg-brand-50 hover:shadow-md dark:border-brand-800/50 dark:bg-brand-950/50 dark:hover:bg-brand-900/50"
           >
             <svg className="mr-2 h-5 w-5" viewBox="0 0 24 24">
               <path

features/auth/components/reset-password-form.tsx

@@ -79,9 +79,9 @@ export default function ResetPasswordForm() {
           autoComplete="new-password"
           disabled={isLoading}
           {...register("password")}
-          className="h-11 transition-all duration-200"
+          className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
         />
-        <p className="text-xs text-gray-500 dark:text-gray-400">
+        <p className="text-xs text-muted-foreground">
           8자 이상, 대문자/소문자/숫자/특수문자를 각 1개 이상 포함해야 합니다.
         </p>
         {errors.password && (
@@ -102,7 +102,7 @@ export default function ResetPasswordForm() {
           autoComplete="new-password"
           disabled={isLoading}
           {...register("confirmPassword")}
-          className="h-11 transition-all duration-200"
+          className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
         />
         {confirmPassword &&
           password !== confirmPassword &&
@@ -114,7 +114,7 @@ export default function ResetPasswordForm() {
         {confirmPassword &&
           password === confirmPassword &&
           !errors.confirmPassword && (
-            <p className="text-xs text-green-600 dark:text-green-400">
+            <p className="text-xs text-brand-600 dark:text-brand-400">
               비밀번호가 일치합니다.
             </p>
           )}
@@ -128,7 +128,7 @@ export default function ResetPasswordForm() {
       <Button
         type="submit"
         disabled={isLoading}
-        className="h-11 w-full bg-linear-to-r from-gray-900 to-black font-semibold text-white shadow-lg transition-all hover:from-black hover:to-gray-800 hover:shadow-xl dark:from-white dark:to-gray-100 dark:text-black dark:hover:from-gray-100 dark:hover:to-white"
+        className="h-11 w-full bg-linear-to-r from-brand-500 to-brand-700 font-semibold text-white shadow-lg shadow-brand-500/20 transition-all hover:from-brand-600 hover:to-brand-800 hover:shadow-xl hover:shadow-brand-500/25"
       >
         {isLoading ? (
           <span className="flex items-center gap-2">

features/auth/components/session-manager.tsx

@@ -29,6 +29,12 @@ import { SESSION_TIMEOUT_MS } from "@/features/auth/constants";
 // 설정: 경고 표시 시간 (타임아웃 1분 전) - 현재 미사용 (즉시 로그아웃)
 // const WARNING_MS = 60 * 1000;
 
+const SESSION_RELATED_STORAGE_KEYS = [
+  "session-storage",
+  "auth-storage",
+  "autotrade-kis-runtime-store",
+] as const;
+
 /**
  * 세션 관리자 컴포넌트
  * 사용자 활동을 감지하여 세션 연장 및 타임아웃 처리
@@ -51,6 +57,18 @@ export function SessionManager() {
 
   const { setLastActive } = useSessionStore();
 
+  /**
+   * @description 세션 만료 로그아웃 시 세션 관련 로컬 스토리지를 정리합니다.
+   * @see features/layout/components/user-menu.tsx 수동 로그아웃 경로에서도 동일한 키를 제거합니다.
+   */
+  const clearSessionRelatedStorage = useCallback(() => {
+    if (typeof window === "undefined") return;
+
+    for (const key of SESSION_RELATED_STORAGE_KEYS) {
+      window.localStorage.removeItem(key);
+    }
+  }, []);
+
   /**
    * 로그아웃 처리 핸들러
    * @see session-timer.tsx - 타임아웃 시 동일한 로직 필요 가능성 있음
@@ -64,11 +82,12 @@ export function SessionManager() {
 
     // [Step 3] 로컬 스토어 및 세션 정보 초기화
     useSessionStore.persist.clearStorage();
+    clearSessionRelatedStorage();
 
     // [Step 4] 로그인 페이지로 리다이렉트 및 메시지 표시
     router.push("/login?message=세션이 만료되었습니다. 다시 로그인해주세요.");
     router.refresh();
-  }, [router]);
+  }, [clearSessionRelatedStorage, router]);
 
   useEffect(() => {
     if (isAuthPage) return;
@@ -79,6 +98,10 @@ export function SessionManager() {
       if (showWarning) setShowWarning(false);
     };
 
+    // [Step 0] 인증 페이지에서 메인 페이지로 진입한 직후를 "활동"으로 간주해
+    // 이전 세션 잔여 시간(예: 00:00)으로 즉시 로그아웃되는 현상을 방지합니다.
+    updateLastActive();
+
     // [Step 1] 사용자 활동 이벤트 감지 (마우스, 키보드, 스크롤, 터치)
     const events = ["mousedown", "keydown", "scroll", "touchstart"];
     const handleActivity = () => updateLastActive();

features/auth/components/session-timer.tsx

@@ -13,6 +13,7 @@
 import { useEffect, useState } from "react";
 import { useSessionStore } from "@/stores/session-store";
 import { SESSION_TIMEOUT_MS } from "@/features/auth/constants";
+import { cn } from "@/lib/utils";
 
 /**
  * 세션 만료 타이머 컴포넌트
@@ -21,7 +22,12 @@ import { SESSION_TIMEOUT_MS } from "@/features/auth/constants";
  * @remarks 1초마다 리렌더링 발생
  * @see header.tsx - 로그인 상태일 때 헤더에 표시
  */
-export function SessionTimer() {
+interface SessionTimerProps {
+  /** 셰이더 배경 위에서 가독성을 높이는 투명 모드 */
+  blendWithBackground?: boolean;
+}
+
+export function SessionTimer({ blendWithBackground = false }: SessionTimerProps) {
   const lastActive = useSessionStore((state) => state.lastActive);
 
   // [State] 남은 시간 (밀리초)
@@ -54,11 +60,14 @@ export function SessionTimer() {
 
   return (
     <div
-      className={`text-sm font-medium tabular-nums px-3 py-1.5 rounded-md border bg-background/50 backdrop-blur-md hidden md:block transition-colors ${
+      className={cn(
+        "hidden rounded-full border px-3 py-1.5 text-sm font-medium tabular-nums backdrop-blur-md transition-colors md:block",
         isUrgent
-          ? "text-red-500 border-red-200 bg-red-50/50 dark:bg-red-900/20 dark:border-red-800"
-          : "text-muted-foreground border-border/40"
-      }`}
+          ? "border-red-200 bg-red-50/50 text-red-500 dark:border-red-800 dark:bg-red-900/20"
+          : blendWithBackground
+            ? "border-white/30 bg-black/45 text-white shadow-sm shadow-black/40"
+            : "border-border/40 bg-background/50 text-muted-foreground",
+      )}
     >
       {/* ========== 라벨 ========== */}
       <span className="mr-2">세션 만료</span>

features/auth/components/signup-form.tsx

@@ -84,7 +84,7 @@ export default function SignupForm() {
           autoComplete="email"
           disabled={isLoading}
           {...register("email")}
-          className="h-11 transition-all duration-200"
+          className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
         />
         {errors.email && (
           <p className="text-xs text-red-600 dark:text-red-400">
@@ -105,9 +105,9 @@ export default function SignupForm() {
           autoComplete="new-password"
           disabled={isLoading}
           {...register("password")}
-          className="h-11 transition-all duration-200"
+          className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
         />
-        <p className="text-xs text-gray-500 dark:text-gray-400">
+        <p className="text-xs text-muted-foreground">
           최소 8자 이상, 대문자, 소문자, 숫자, 특수문자 포함
         </p>
         {errors.password && (
@@ -129,7 +129,7 @@ export default function SignupForm() {
           autoComplete="new-password"
           disabled={isLoading}
           {...register("confirmPassword")}
-          className="h-11 transition-all duration-200"
+          className="h-11 transition-all duration-200 focus-visible:ring-brand-500"
         />
         {/* 비밀번호 불일치 시 실시간 피드백 */}
         {confirmPassword &&
@@ -143,7 +143,7 @@ export default function SignupForm() {
         {confirmPassword &&
           password === confirmPassword &&
           !errors.confirmPassword && (
-            <p className="text-xs text-green-600 dark:text-green-400">
+            <p className="text-xs text-brand-600 dark:text-brand-400">
               비밀번호가 일치합니다 ✓
             </p>
           )}
@@ -159,7 +159,7 @@ export default function SignupForm() {
       <Button
         type="submit"
         disabled={isLoading}
-        className="h-11 w-full bg-gradient-to-r from-gray-900 to-black font-semibold shadow-lg transition-all duration-200 hover:from-black hover:to-gray-800 hover:shadow-xl dark:from-white dark:to-gray-100 dark:text-black dark:hover:from-gray-100 dark:hover:to-white"
+        className="h-11 w-full bg-linear-to-r from-brand-500 to-brand-700 font-semibold text-white shadow-lg shadow-brand-500/20 transition-all duration-200 hover:from-brand-600 hover:to-brand-800 hover:shadow-xl hover:shadow-brand-500/25"
       >
         {isLoading ? (
           <span className="flex items-center gap-2">

features/dashboard/apis/dashboard.api.ts

@@ -0,0 +1,115 @@
+import type { KisRuntimeCredentials } from "@/features/settings/store/use-kis-runtime-store";
+import type {
+  DashboardActivityResponse,
+  DashboardBalanceResponse,
+  DashboardIndicesResponse,
+} from "@/features/dashboard/types/dashboard.types";
+
+/**
+ * @file features/dashboard/apis/dashboard.api.ts
+ * @description 대시보드 잔고/지수 API 클라이언트
+ */
+
+/**
+ * 계좌 잔고/보유종목을 조회합니다.
+ * @param credentials KIS 인증 정보
+ * @returns 잔고 응답
+ * @see app/api/kis/domestic/balance/route.ts 서버 라우트
+ */
+export async function fetchDashboardBalance(
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardBalanceResponse> {
+  const response = await fetch("/api/kis/domestic/balance", {
+    method: "GET",
+    headers: buildKisRequestHeaders(credentials),
+    cache: "no-store",
+  });
+
+  const payload = (await response.json()) as
+    | DashboardBalanceResponse
+    | { error?: string };
+
+  if (!response.ok) {
+    throw new Error(
+      "error" in payload ? payload.error : "잔고 조회 중 오류가 발생했습니다.",
+    );
+  }
+
+  return payload as DashboardBalanceResponse;
+}
+
+/**
+ * 시장 지수(KOSPI/KOSDAQ)를 조회합니다.
+ * @param credentials KIS 인증 정보
+ * @returns 지수 응답
+ * @see app/api/kis/domestic/indices/route.ts 서버 라우트
+ */
+export async function fetchDashboardIndices(
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardIndicesResponse> {
+  const response = await fetch("/api/kis/domestic/indices", {
+    method: "GET",
+    headers: buildKisRequestHeaders(credentials),
+    cache: "no-store",
+  });
+
+  const payload = (await response.json()) as
+    | DashboardIndicesResponse
+    | { error?: string };
+
+  if (!response.ok) {
+    throw new Error(
+      "error" in payload ? payload.error : "지수 조회 중 오류가 발생했습니다.",
+    );
+  }
+
+  return payload as DashboardIndicesResponse;
+}
+
+/**
+ * 주문내역/매매일지(활동 데이터)를 조회합니다.
+ * @param credentials KIS 인증 정보
+ * @returns 활동 데이터 응답
+ * @see app/api/kis/domestic/activity/route.ts 서버 라우트
+ */
+export async function fetchDashboardActivity(
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardActivityResponse> {
+  const response = await fetch("/api/kis/domestic/activity", {
+    method: "GET",
+    headers: buildKisRequestHeaders(credentials),
+    cache: "no-store",
+  });
+
+  const payload = (await response.json()) as
+    | DashboardActivityResponse
+    | { error?: string };
+
+  if (!response.ok) {
+    throw new Error(
+      "error" in payload ? payload.error : "활동 데이터 조회 중 오류가 발생했습니다.",
+    );
+  }
+
+  return payload as DashboardActivityResponse;
+}
+
+/**
+ * 대시보드 API 공통 헤더를 구성합니다.
+ * @param credentials KIS 인증 정보
+ * @returns KIS 전달 헤더
+ * @see features/dashboard/apis/dashboard.api.ts fetchDashboardBalance/fetchDashboardIndices
+ */
+function buildKisRequestHeaders(credentials: KisRuntimeCredentials) {
+  const headers: Record<string, string> = {
+    "x-kis-app-key": credentials.appKey,
+    "x-kis-app-secret": credentials.appSecret,
+    "x-kis-trading-env": credentials.tradingEnv,
+  };
+
+  if (credentials.accountNo?.trim()) {
+    headers["x-kis-account-no"] = credentials.accountNo.trim();
+  }
+
+  return headers;
+}

features/dashboard/components/ActivitySection.tsx

@@ -0,0 +1,331 @@
+import { AlertCircle, ClipboardList, FileText, RefreshCcw } from "lucide-react";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import type {
+  DashboardActivityResponse,
+  DashboardTradeSide,
+} from "@/features/dashboard/types/dashboard.types";
+import {
+  formatCurrency,
+  formatPercent,
+  getChangeToneClass,
+} from "@/features/dashboard/utils/dashboard-format";
+import { cn } from "@/lib/utils";
+
+interface ActivitySectionProps {
+  activity: DashboardActivityResponse | null;
+  isLoading: boolean;
+  error: string | null;
+  onRetry?: () => void;
+}
+
+/**
+ * @description 대시보드 하단 주문내역/매매일지 섹션입니다.
+ * @remarks UI 흐름: DashboardContainer -> ActivitySection -> tabs(주문내역/매매일지) -> 리스트 렌더링
+ * @see features/dashboard/components/DashboardContainer.tsx 하단 영역에서 호출합니다.
+ * @see app/api/kis/domestic/activity/route.ts 주문내역/매매일지 데이터 소스
+ */
+export function ActivitySection({
+  activity,
+  isLoading,
+  error,
+  onRetry,
+}: ActivitySectionProps) {
+  const orders = activity?.orders ?? [];
+  const journalRows = activity?.tradeJournal ?? [];
+  const summary = activity?.journalSummary;
+  const warnings = activity?.warnings ?? [];
+
+  return (
+    <Card>
+      <CardHeader className="pb-3">
+        {/* ========== TITLE ========== */}
+        <CardTitle className="flex items-center gap-2 text-base">
+          <ClipboardList className="h-4 w-4 text-brand-600 dark:text-brand-400" />
+          주문내역 · 매매일지
+        </CardTitle>
+        <CardDescription>
+          최근 주문 체결 내역과 실현손익 기록을 확인합니다.
+        </CardDescription>
+      </CardHeader>
+
+      <CardContent className="space-y-3">
+        {isLoading && !activity && (
+          <p className="text-sm text-muted-foreground">
+            주문내역/매매일지를 불러오는 중입니다.
+          </p>
+        )}
+
+        {error && (
+          <div className="rounded-md border border-red-200 bg-red-50/60 p-2.5 dark:border-red-900/40 dark:bg-red-950/20">
+            <p className="flex items-start gap-1.5 text-sm text-red-600 dark:text-red-400">
+              <AlertCircle className="mt-0.5 h-4 w-4 shrink-0" />
+              <span>{error}</span>
+            </p>
+            <p className="mt-1 text-xs text-red-700/80 dark:text-red-300/80">
+              주문/매매일지 API는 장중 혼잡 시간에 간헐적 실패가 발생할 수 있습니다.
+            </p>
+            {onRetry ? (
+              <Button
+                type="button"
+                size="sm"
+                variant="outline"
+                onClick={onRetry}
+                className="mt-2 border-red-300 text-red-700 hover:bg-red-100 dark:border-red-700 dark:text-red-300 dark:hover:bg-red-900/40"
+              >
+                <RefreshCcw className="mr-1.5 h-3.5 w-3.5" />
+                주문/매매일지 다시 불러오기
+              </Button>
+            ) : null}
+          </div>
+        )}
+
+        {warnings.length > 0 && (
+          <div className="flex flex-wrap gap-2">
+            {warnings.map((warning) => (
+              <Badge
+                key={warning}
+                variant="outline"
+                className="border-amber-300 bg-amber-50 text-amber-700 dark:border-amber-700 dark:bg-amber-950/30 dark:text-amber-300"
+              >
+                <AlertCircle className="h-3 w-3" />
+                {warning}
+              </Badge>
+            ))}
+          </div>
+        )}
+
+        {/* ========== TABS ========== */}
+        <Tabs defaultValue="orders" className="gap-3">
+          <TabsList className="w-full justify-start">
+            <TabsTrigger value="orders">주문내역 {orders.length}건</TabsTrigger>
+            <TabsTrigger value="journal">매매일지 {journalRows.length}건</TabsTrigger>
+          </TabsList>
+
+          <TabsContent value="orders">
+            <div className="overflow-hidden rounded-xl border border-border/70">
+              <div className="grid grid-cols-[100px_1fr_140px_120px_120px_90px] gap-2 bg-muted/40 px-3 py-2 text-xs font-medium text-muted-foreground">
+                <span>일시</span>
+                <span>종목</span>
+                <span>주문</span>
+                <span>체결</span>
+                <span>평균체결가</span>
+                <span>상태</span>
+              </div>
+
+              <ScrollArea className="h-[280px]">
+                {orders.length === 0 ? (
+                  <p className="px-3 py-4 text-sm text-muted-foreground">
+                    표시할 주문내역이 없습니다.
+                  </p>
+                ) : (
+                  <div className="divide-y divide-border/60">
+                    {orders.map((order) => (
+                      <div
+                        key={`${order.orderNo}-${order.orderDate}-${order.orderTime}`}
+                        className="grid grid-cols-[100px_1fr_140px_120px_120px_90px] items-center gap-2 px-3 py-2 text-sm"
+                      >
+                        {/* ========== ORDER DATETIME ========== */}
+                        <div className="text-xs text-muted-foreground">
+                          <p>{order.orderDate}</p>
+                          <p>{order.orderTime}</p>
+                        </div>
+
+                        {/* ========== STOCK INFO ========== */}
+                        <div>
+                          <p className="font-medium text-foreground">{order.name}</p>
+                          <p className="text-xs text-muted-foreground">
+                            {order.symbol} · {getSideLabel(order.side)}
+                          </p>
+                        </div>
+
+                        {/* ========== ORDER INFO ========== */}
+                        <div className="text-xs">
+                          <p>수량 {order.orderQuantity.toLocaleString("ko-KR")}주</p>
+                          <p className="text-muted-foreground">
+                            {order.orderTypeName} · {formatCurrency(order.orderPrice)}원
+                          </p>
+                        </div>
+
+                        {/* ========== FILLED INFO ========== */}
+                        <div className="text-xs">
+                          <p>체결 {order.filledQuantity.toLocaleString("ko-KR")}주</p>
+                          <p className="text-muted-foreground">
+                            금액 {formatCurrency(order.filledAmount)}원
+                          </p>
+                        </div>
+
+                        {/* ========== AVG PRICE ========== */}
+                        <div className="text-xs font-medium text-foreground">
+                          {formatCurrency(order.averageFilledPrice)}원
+                        </div>
+
+                        {/* ========== STATUS ========== */}
+                        <div>
+                          <Badge
+                            variant="outline"
+                            className={cn(
+                              "text-[11px]",
+                              order.isCanceled
+                                ? "border-slate-300 text-slate-600 dark:border-slate-700 dark:text-slate-300"
+                                : order.remainingQuantity > 0
+                                  ? "border-amber-300 text-amber-700 dark:border-amber-700 dark:text-amber-300"
+                                  : "border-emerald-300 text-emerald-700 dark:border-emerald-700 dark:text-emerald-300",
+                            )}
+                          >
+                            {order.isCanceled
+                              ? "취소"
+                              : order.remainingQuantity > 0
+                                ? "미체결"
+                                : "체결완료"}
+                          </Badge>
+                        </div>
+                      </div>
+                    ))}
+                  </div>
+                )}
+              </ScrollArea>
+            </div>
+          </TabsContent>
+
+          <TabsContent value="journal" className="space-y-3">
+            {/* ========== JOURNAL SUMMARY ========== */}
+            <div className="grid gap-2 sm:grid-cols-2 lg:grid-cols-4">
+              <SummaryMetric
+                label="총 실현손익"
+                value={summary ? `${formatCurrency(summary.totalRealizedProfit)}원` : "-"}
+                toneClass={summary ? getChangeToneClass(summary.totalRealizedProfit) : undefined}
+              />
+              <SummaryMetric
+                label="총 수익률"
+                value={summary ? formatPercent(summary.totalRealizedRate) : "-"}
+                toneClass={summary ? getChangeToneClass(summary.totalRealizedProfit) : undefined}
+              />
+              <SummaryMetric
+                label="총 매수금액"
+                value={summary ? `${formatCurrency(summary.totalBuyAmount)}원` : "-"}
+              />
+              <SummaryMetric
+                label="총 매도금액"
+                value={summary ? `${formatCurrency(summary.totalSellAmount)}원` : "-"}
+              />
+            </div>
+
+            <div className="overflow-hidden rounded-xl border border-border/70">
+              <div className="grid grid-cols-[100px_1fr_120px_130px_120px_110px] gap-2 bg-muted/40 px-3 py-2 text-xs font-medium text-muted-foreground">
+                <span>일자</span>
+                <span>종목</span>
+                <span>매매구분</span>
+                <span>매수/매도금액</span>
+                <span>실현손익(률)</span>
+                <span>비용</span>
+              </div>
+
+              <ScrollArea className="h-[280px]">
+                {journalRows.length === 0 ? (
+                  <p className="px-3 py-4 text-sm text-muted-foreground">
+                    표시할 매매일지가 없습니다.
+                  </p>
+                ) : (
+                  <div className="divide-y divide-border/60">
+                    {journalRows.map((row) => {
+                      const toneClass = getChangeToneClass(row.realizedProfit);
+                      return (
+                        <div
+                          key={`${row.tradeDate}-${row.symbol}-${row.realizedProfit}-${row.buyAmount}-${row.sellAmount}`}
+                          className="grid grid-cols-[100px_1fr_120px_130px_120px_110px] items-center gap-2 px-3 py-2 text-sm"
+                        >
+                          <p className="text-xs text-muted-foreground">{row.tradeDate}</p>
+                          <div>
+                            <p className="font-medium text-foreground">{row.name}</p>
+                            <p className="text-xs text-muted-foreground">{row.symbol}</p>
+                          </div>
+                          <p className={cn("text-xs font-medium", getSideToneClass(row.side))}>
+                            {getSideLabel(row.side)}
+                          </p>
+                          <p className="text-xs">
+                            매수 {formatCurrency(row.buyAmount)}원 / 매도 {formatCurrency(row.sellAmount)}원
+                          </p>
+                          <p className={cn("text-xs font-medium", toneClass)}>
+                            {formatCurrency(row.realizedProfit)}원 ({formatPercent(row.realizedRate)})
+                          </p>
+                          <p className="text-xs text-muted-foreground">
+                            수수료 {formatCurrency(row.fee)}원
+                            <br />
+                            세금 {formatCurrency(row.tax)}원
+                          </p>
+                        </div>
+                      );
+                    })}
+                  </div>
+                )}
+              </ScrollArea>
+            </div>
+          </TabsContent>
+        </Tabs>
+
+        {!isLoading && !error && !activity && (
+          <p className="flex items-center gap-1.5 text-sm text-muted-foreground">
+            <FileText className="h-4 w-4" />
+            활동 데이터가 없습니다.
+          </p>
+        )}
+      </CardContent>
+    </Card>
+  );
+}
+
+interface SummaryMetricProps {
+  label: string;
+  value: string;
+  toneClass?: string;
+}
+
+/**
+ * @description 매매일지 요약 지표 카드입니다.
+ * @param label 지표명
+ * @param value 지표값
+ * @param toneClass 값 색상 클래스
+ * @see features/dashboard/components/ActivitySection.tsx 매매일지 상단 요약 표시
+ */
+function SummaryMetric({ label, value, toneClass }: SummaryMetricProps) {
+  return (
+    <div className="rounded-xl border border-border/70 bg-background/70 p-3">
+      <p className="text-xs text-muted-foreground">{label}</p>
+      <p className={cn("mt-1 text-sm font-semibold text-foreground", toneClass)}>{value}</p>
+    </div>
+  );
+}
+
+/**
+ * @description 매수/매도 라벨 텍스트를 반환합니다.
+ * @param side 매수/매도 구분값
+ * @returns 라벨 문자열
+ * @see features/dashboard/components/ActivitySection.tsx 주문내역/매매일지 표시
+ */
+function getSideLabel(side: DashboardTradeSide) {
+  if (side === "buy") return "매수";
+  if (side === "sell") return "매도";
+  return "기타";
+}
+
+/**
+ * @description 매수/매도 라벨 색상 클래스를 반환합니다.
+ * @param side 매수/매도 구분값
+ * @returns Tailwind 텍스트 클래스
+ * @see features/dashboard/components/ActivitySection.tsx 매매구분 표시
+ */
+function getSideToneClass(side: DashboardTradeSide) {
+  if (side === "buy") return "text-red-600 dark:text-red-400";
+  if (side === "sell") return "text-blue-600 dark:text-blue-400";
+  return "text-muted-foreground";
+}

features/dashboard/components/DashboardAccessGate.tsx

@@ -0,0 +1,36 @@
+import Link from "next/link";
+import { Button } from "@/components/ui/button";
+
+interface DashboardAccessGateProps {
+  canAccess: boolean;
+}
+
+/**
+ * @description KIS 인증 여부에 따라 대시보드 접근 가이드를 렌더링합니다.
+ * @param canAccess 대시보드 접근 가능 여부
+ * @see features/dashboard/components/DashboardContainer.tsx 인증되지 않은 경우 이 컴포넌트를 렌더링합니다.
+ */
+export function DashboardAccessGate({ canAccess }: DashboardAccessGateProps) {
+  if (canAccess) return null;
+
+  return (
+    <div className="flex h-full items-center justify-center p-6">
+      <section className="w-full max-w-xl rounded-2xl border border-brand-200 bg-background p-6 shadow-sm dark:border-brand-800/45 dark:bg-brand-900/18">
+        {/* ========== UNVERIFIED NOTICE ========== */}
+        <h2 className="text-lg font-semibold text-foreground">
+          대시보드를 보려면 한국투자증권 연결이 필요합니다.
+        </h2>
+        <p className="mt-2 text-sm text-muted-foreground">
+          설정 페이지에서 앱키, 앱시크릿키, 계좌번호를 입력하고 연결을 완료해 주세요.
+        </p>
+
+        {/* ========== ACTION ========== */}
+        <div className="mt-4">
+          <Button asChild className="bg-brand-600 hover:bg-brand-700">
+            <Link href="/settings">설정 페이지로 이동</Link>
+          </Button>
+        </div>
+      </section>
+    </div>
+  );
+}

features/dashboard/components/DashboardContainer.tsx

@@ -0,0 +1,362 @@
+"use client";
+
+import { useMemo } from "react";
+import { useShallow } from "zustand/react/shallow";
+import { LoadingSpinner } from "@/components/ui/loading-spinner";
+import { ActivitySection } from "@/features/dashboard/components/ActivitySection";
+import { DashboardAccessGate } from "@/features/dashboard/components/DashboardAccessGate";
+import { DashboardSkeleton } from "@/features/dashboard/components/DashboardSkeleton";
+import { HoldingsList } from "@/features/dashboard/components/HoldingsList";
+import { MarketSummary } from "@/features/dashboard/components/MarketSummary";
+import { StatusHeader } from "@/features/dashboard/components/StatusHeader";
+import { StockDetailPreview } from "@/features/dashboard/components/StockDetailPreview";
+import { useDashboardData } from "@/features/dashboard/hooks/use-dashboard-data";
+import { useMarketRealtime } from "@/features/dashboard/hooks/use-market-realtime";
+import { useKisWebSocketStore } from "@/features/kis-realtime/stores/kisWebSocketStore";
+import { useKisRuntimeStore } from "@/features/settings/store/use-kis-runtime-store";
+import { useHoldingsRealtime } from "@/features/dashboard/hooks/use-holdings-realtime";
+import type {
+  DashboardBalanceSummary,
+  DashboardHoldingItem,
+  DashboardMarketIndexItem,
+} from "@/features/dashboard/types/dashboard.types";
+import type { KisRealtimeStockTick } from "@/features/dashboard/utils/kis-stock-realtime.utils";
+
+/**
+ * @file DashboardContainer.tsx
+ * @description 대시보드 메인 레이아웃 및 데이터 통합 관리 컴포넌트
+ * @remarks
+ * - [레이어] Components / Container
+ * - [사용자 행동] 대시보드 진입 -> 전체 자산/시장 지수/보유 종목 확인 -> 특정 종목 선택 상세 확인
+ * - [데이터 흐름] API(REST/WS) -> Hooks(useDashboardData, useMarketRealtime, useHoldingsRealtime) -> UI 병합 -> 하위 컴포넌트 전파
+ * - [연관 파일] use-dashboard-data.ts, use-holdings-realtime.ts, StatusHeader.tsx, HoldingsList.tsx
+ * @author jihoon87.lee
+ */
+export function DashboardContainer() {
+  // [Store] KIS 런타임 설정 상태 (인증 여부, 접속 계좌, 웹소켓 정보 등)
+  const {
+    verifiedCredentials,
+    isKisVerified,
+    isKisProfileVerified,
+    verifiedAccountNo,
+    _hasHydrated,
+    wsApprovalKey,
+    wsUrl,
+  } = useKisRuntimeStore(
+    useShallow((state) => ({
+      verifiedCredentials: state.verifiedCredentials,
+      isKisVerified: state.isKisVerified,
+      isKisProfileVerified: state.isKisProfileVerified,
+      verifiedAccountNo: state.verifiedAccountNo,
+      _hasHydrated: state._hasHydrated,
+      wsApprovalKey: state.wsApprovalKey,
+      wsUrl: state.wsUrl,
+    })),
+  );
+
+  // KIS 접근 가능 여부 판단
+  const canAccess = isKisVerified && Boolean(verifiedCredentials);
+
+  // [Hooks] 기본적인 대시보드 데이터(잔고, 지수, 활동내역) 조회 및 선택 상태 관리
+  // @see use-dashboard-data.ts - 초기 데이터 로딩 및 폴링 처리
+  const {
+    activity,
+    balance,
+    indices: initialIndices,
+    selectedSymbol,
+    setSelectedSymbol,
+    isLoading,
+    isRefreshing,
+    activityError,
+    balanceError,
+    indicesError,
+    lastUpdatedAt,
+    refresh,
+  } = useDashboardData(canAccess ? verifiedCredentials : null);
+
+  // [Hooks] 시장 지수(코스피/코스닥) 실시간 웹소켓 데이터 구독
+  // @see use-market-realtime.ts - 웹소켓 연결 및 지수 파싱
+  const { realtimeIndices, isConnected: isWsConnected } = useMarketRealtime(
+    verifiedCredentials,
+    isKisVerified,
+  );
+
+  // [Hooks] 보유 종목 실시간 시세 웹소켓 데이터 구독
+  // @see use-holdings-realtime.ts - 보유 종목 리스트 기반 시세 업데이트
+  const { realtimeData: realtimeHoldings } = useHoldingsRealtime(
+    balance?.holdings ?? [],
+  );
+  const reconnectWebSocket = useKisWebSocketStore((state) => state.reconnect);
+
+  // [Step 1] REST API로 가져온 기본 지수 정보와 실시간 웹소켓 시세 병합
+  const indices = useMemo(() => {
+    if (initialIndices.length === 0) {
+      return buildRealtimeOnlyIndices(realtimeIndices);
+    }
+
+    return initialIndices.map((item) => {
+      const realtime = realtimeIndices[item.code];
+      if (!realtime) return item;
+
+      return {
+        ...item,
+        price: realtime.price,
+        change: realtime.change,
+        changeRate: realtime.changeRate,
+      };
+    });
+  }, [initialIndices, realtimeIndices]);
+
+  // [Step 2] 초기 잔고 데이터와 실시간 보유 종목 시세를 병합하여 손익 재계산
+  const mergedHoldings = useMemo(
+    () => mergeHoldingsWithRealtime(balance?.holdings ?? [], realtimeHoldings),
+    [balance?.holdings, realtimeHoldings],
+  );
+
+  const isKisRestConnected = Boolean(
+    (balance && !balanceError) ||
+      (initialIndices.length > 0 && !indicesError) ||
+      (activity && !activityError),
+  );
+  const hasRealtimeStreaming =
+    Object.keys(realtimeIndices).length > 0 ||
+    Object.keys(realtimeHoldings).length > 0;
+  const isRealtimePending = Boolean(
+    wsApprovalKey && wsUrl && isWsConnected && !hasRealtimeStreaming,
+  );
+  const effectiveIndicesError = indices.length === 0 ? indicesError : null;
+  const indicesWarning =
+    indices.length > 0 && indicesError
+      ? "지수 API 재요청 중입니다. 화면 값은 실시간/최근 성공 데이터입니다."
+      : null;
+
+  /**
+   * 대시보드 수동 새로고침 시 REST 조회 + 웹소켓 재연결을 함께 수행합니다.
+   * @remarks UI 흐름: StatusHeader/각 카드 다시 불러오기 버튼 -> handleRefreshAll -> REST 재조회 + WS 완전 종료 후 재연결
+   * @see features/dashboard/components/StatusHeader.tsx 상단 다시 불러오기 버튼
+   * @see features/kis-realtime/stores/kisWebSocketStore.ts reconnect
+   */
+  const handleRefreshAll = async () => {
+    await Promise.allSettled([
+      refresh(),
+      reconnectWebSocket({ refreshApproval: false }),
+    ]);
+  };
+
+  /**
+   * 실시간 보유종목 데이터를 기반으로 전체 자산 요약을 계산합니다.
+   * @returns 실시간 요약 데이터 (총자산, 손익, 평가금액 등)
+   */
+  const mergedSummary = useMemo(
+    () => buildRealtimeSummary(balance?.summary ?? null, mergedHoldings),
+    [balance?.summary, mergedHoldings],
+  );
+
+  // [Step 3] 실시간 병합 데이터에서 현재 선택된 종목 정보를 추출
+  // @see StockDetailPreview.tsx - 선택된 종목의 상세 정보 표시
+  const realtimeSelectedHolding = useMemo(() => {
+    if (!selectedSymbol || mergedHoldings.length === 0) return null;
+    return (
+      mergedHoldings.find((item) => item.symbol === selectedSymbol) ?? null
+    );
+  }, [mergedHoldings, selectedSymbol]);
+
+  // 하이드레이션 이전에는 로딩 스피너 표시
+  if (!_hasHydrated) {
+    return (
+      <div className="flex h-full items-center justify-center p-6">
+        <LoadingSpinner />
+      </div>
+    );
+  }
+
+  // KIS 인증이 되지 않은 경우 접근 제한 게이트 표시
+  if (!canAccess) {
+    return <DashboardAccessGate canAccess={canAccess} />;
+  }
+
+  // 데이터 로딩 중이며 아직 데이터가 없는 경우 스켈레톤 표시
+  if (isLoading && !balance && indices.length === 0) {
+    return <DashboardSkeleton />;
+  }
+
+  return (
+    <section className="mx-auto flex w-full max-w-7xl flex-col gap-4 p-4 md:p-6">
+      {/* ========== 상단 상태 영역: 계좌 연결 정보 및 새로고침 ========== */}
+      <StatusHeader
+        summary={mergedSummary}
+        isKisRestConnected={isKisRestConnected}
+        isWebSocketReady={Boolean(wsApprovalKey && wsUrl && isWsConnected)}
+        isRealtimePending={isRealtimePending}
+        isProfileVerified={isKisProfileVerified}
+        verifiedAccountNo={verifiedAccountNo}
+        isRefreshing={isRefreshing}
+        lastUpdatedAt={lastUpdatedAt}
+        onRefresh={() => {
+          void handleRefreshAll();
+        }}
+      />
+
+      {/* ========== 메인 그리드 구성 ========== */}
+      <div className="grid gap-4 lg:grid-cols-[1.15fr_1fr]">
+        {/* 왼쪽 섹션: 보유 종목 목록 리스트 */}
+        <HoldingsList
+          holdings={mergedHoldings}
+          selectedSymbol={selectedSymbol}
+          isLoading={isLoading}
+          error={balanceError}
+          onRetry={() => {
+            void handleRefreshAll();
+          }}
+          onSelect={setSelectedSymbol}
+        />
+
+        {/* 오른쪽 섹션: 시장 지수 요약 및 선택 종목 상세 정보 */}
+        <div className="grid gap-4">
+          {/* 시장 지수 현황 (코스피/코스닥) */}
+          <MarketSummary
+            items={indices}
+            isLoading={isLoading}
+            error={effectiveIndicesError}
+            warning={indicesWarning}
+            isRealtimePending={isRealtimePending}
+            onRetry={() => {
+              void handleRefreshAll();
+            }}
+          />
+
+          {/* 선택된 종목의 실시간 상세 요약 정보 */}
+          <StockDetailPreview
+            holding={realtimeSelectedHolding}
+            totalAmount={mergedSummary?.totalAmount ?? 0}
+          />
+        </div>
+      </div>
+
+      {/* ========== 하단 섹션: 최근 매매/충전 활동 내역 ========== */}
+      <ActivitySection
+        activity={activity}
+        isLoading={isLoading}
+        error={activityError}
+        onRetry={() => {
+          void handleRefreshAll();
+        }}
+      />
+    </section>
+  );
+}
+
+/**
+ * @description REST 지수 데이터가 없을 때 실시간 수신값만으로 코스피/코스닥 표시 데이터를 구성합니다.
+ * @param realtimeIndices 실시간 지수 맵
+ * @returns 화면 렌더링용 지수 배열
+ * @remarks UI 흐름: DashboardContainer -> buildRealtimeOnlyIndices -> MarketSummary 렌더링
+ * @see features/dashboard/hooks/use-market-realtime.ts 실시간 지수 수신 훅
+ */
+function buildRealtimeOnlyIndices(
+  realtimeIndices: Record<string, { price: number; change: number; changeRate: number }>,
+) {
+  const baseItems: DashboardMarketIndexItem[] = [
+    { market: "KOSPI", code: "0001", name: "코스피", price: 0, change: 0, changeRate: 0 },
+    { market: "KOSDAQ", code: "1001", name: "코스닥", price: 0, change: 0, changeRate: 0 },
+  ];
+
+  return baseItems
+    .map((item) => {
+      const realtime = realtimeIndices[item.code];
+      if (!realtime) return null;
+      return {
+        ...item,
+        price: realtime.price,
+        change: realtime.change,
+        changeRate: realtime.changeRate,
+      } satisfies DashboardMarketIndexItem;
+    })
+    .filter((item): item is DashboardMarketIndexItem => Boolean(item));
+}
+
+/**
+ * @description 보유종목 리스트에 실시간 체결가를 병합해 현재가/평가금액/손익을 재계산합니다.
+ * @param holdings REST 기준 보유종목
+ * @param realtimeHoldings 종목별 실시간 체결 데이터
+ * @returns 병합된 보유종목 리스트
+ * @remarks UI 흐름: DashboardContainer -> mergeHoldingsWithRealtime -> HoldingsList/StockDetailPreview 반영
+ * @see features/dashboard/hooks/use-holdings-realtime.ts 보유종목 실시간 체결 구독
+ */
+function mergeHoldingsWithRealtime(
+  holdings: DashboardHoldingItem[],
+  realtimeHoldings: Record<string, KisRealtimeStockTick>,
+) {
+  if (holdings.length === 0 || Object.keys(realtimeHoldings).length === 0) {
+    return holdings;
+  }
+
+  return holdings.map((item) => {
+    const tick = realtimeHoldings[item.symbol];
+    if (!tick) return item;
+
+    const currentPrice = tick.currentPrice;
+    const purchaseAmount = item.averagePrice * item.quantity;
+    const evaluationAmount = currentPrice * item.quantity;
+    const profitLoss = evaluationAmount - purchaseAmount;
+    const profitRate = purchaseAmount > 0 ? (profitLoss / purchaseAmount) * 100 : 0;
+
+    return {
+      ...item,
+      currentPrice,
+      evaluationAmount,
+      profitLoss,
+      profitRate,
+    };
+  });
+}
+
+/**
+ * @description 실시간 보유종목 기준으로 대시보드 요약(총자산/손익)을 일관되게 재계산합니다.
+ * @param summary REST API 요약 값
+ * @param holdings 실시간 병합된 보유종목
+ * @returns 재계산된 요약 값
+ * @remarks UI 흐름: DashboardContainer -> buildRealtimeSummary -> StatusHeader 카드 반영
+ * @see features/dashboard/components/StatusHeader.tsx 상단 요약 렌더링
+ */
+function buildRealtimeSummary(
+  summary: DashboardBalanceSummary | null,
+  holdings: DashboardHoldingItem[],
+) {
+  if (!summary) return null;
+  if (holdings.length === 0) return summary;
+
+  const evaluationAmount = holdings.reduce(
+    (total, item) => total + item.evaluationAmount,
+    0,
+  );
+  const purchaseAmount = holdings.reduce(
+    (total, item) => total + item.averagePrice * item.quantity,
+    0,
+  );
+  const totalProfitLoss = evaluationAmount - purchaseAmount;
+  const totalProfitRate =
+    purchaseAmount > 0 ? (totalProfitLoss / purchaseAmount) * 100 : 0;
+
+  const evaluationDelta = evaluationAmount - summary.evaluationAmount;
+  const baseTotalAmount =
+    summary.apiReportedNetAssetAmount > 0
+      ? summary.apiReportedNetAssetAmount
+      : summary.totalAmount;
+
+  // 실시간은 "기준 순자산 + 평가금 증감분"으로만 반영합니다.
+  const totalAmount = Math.max(baseTotalAmount + evaluationDelta, 0);
+  const netAssetAmount = totalAmount;
+  const cashBalance = Math.max(totalAmount - evaluationAmount, 0);
+
+  return {
+    ...summary,
+    totalAmount,
+    netAssetAmount,
+    cashBalance,
+    evaluationAmount,
+    purchaseAmount,
+    totalProfitLoss,
+    totalProfitRate,
+  } satisfies DashboardBalanceSummary;
+}

features/dashboard/components/DashboardSkeleton.tsx

@@ -0,0 +1,59 @@
+import { Card, CardContent, CardHeader } from "@/components/ui/card";
+import { Skeleton } from "@/components/ui/skeleton";
+
+/**
+ * @description 대시보드 초기 로딩 스켈레톤 UI입니다.
+ * @see features/dashboard/components/DashboardContainer.tsx isLoading 상태에서 렌더링합니다.
+ */
+export function DashboardSkeleton() {
+  return (
+    <div className="mx-auto flex w-full max-w-7xl flex-col gap-4 p-4 md:p-6">
+      {/* ========== HEADER SKELETON ========== */}
+      <Card className="border-brand-200 dark:border-brand-800/50">
+        <CardContent className="grid gap-3 p-4 md:grid-cols-4">
+          <Skeleton className="h-20 w-full" />
+          <Skeleton className="h-20 w-full" />
+          <Skeleton className="h-20 w-full" />
+          <Skeleton className="h-20 w-full" />
+        </CardContent>
+      </Card>
+
+      {/* ========== BODY SKELETON ========== */}
+      <div className="grid gap-4 lg:grid-cols-[1.15fr_1fr]">
+        <Card>
+          <CardHeader className="pb-2">
+            <Skeleton className="h-5 w-28" />
+          </CardHeader>
+          <CardContent className="space-y-3">
+            {Array.from({ length: 6 }).map((_, index) => (
+              <Skeleton key={index} className="h-14 w-full" />
+            ))}
+          </CardContent>
+        </Card>
+
+        <div className="grid gap-4">
+          <Card>
+            <CardHeader className="pb-2">
+              <Skeleton className="h-5 w-24" />
+            </CardHeader>
+            <CardContent className="space-y-3">
+              <Skeleton className="h-16 w-full" />
+              <Skeleton className="h-16 w-full" />
+            </CardContent>
+          </Card>
+
+          <Card>
+            <CardHeader className="pb-2">
+              <Skeleton className="h-5 w-40" />
+            </CardHeader>
+            <CardContent className="space-y-3">
+              <Skeleton className="h-14 w-full" />
+              <Skeleton className="h-14 w-full" />
+              <Skeleton className="h-14 w-full" />
+            </CardContent>
+          </Card>
+        </div>
+      </div>
+    </div>
+  );
+}

features/dashboard/components/HoldingsList.tsx

@@ -0,0 +1,228 @@
+/**
+ * @file HoldingsList.tsx
+ * @description 대시보드 좌측 영역의 보유 종목 리스트 컴포넌트
+ * @remarks
+ * - [레이어] Components / UI
+ * - [사용자 행동] 종목 리스트 스크롤 -> 특정 종목 클릭(선택) -> 우측 상세 프레뷰 갱신
+ * - [데이터 흐름] DashboardContainer(mergedHoldings) -> HoldingsList -> HoldingItemRow -> onSelect(Callback)
+ * - [연관 파일] DashboardContainer.tsx, dashboard.types.ts, use-price-flash.ts
+ * @author jihoon87.lee
+ */
+import { AlertCircle, Wallet2 } from "lucide-react";
+import { RefreshCcw } from "lucide-react";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { Button } from "@/components/ui/button";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import type { DashboardHoldingItem } from "@/features/dashboard/types/dashboard.types";
+import {
+  formatCurrency,
+  formatPercent,
+  getChangeToneClass,
+} from "@/features/dashboard/utils/dashboard-format";
+import { cn } from "@/lib/utils";
+import { usePriceFlash } from "@/features/dashboard/hooks/use-price-flash";
+
+interface HoldingsListProps {
+  /** 보유 종목 데이터 리스트 (실시간 시세 병합됨) */
+  holdings: DashboardHoldingItem[];
+  /** 현재 선택된 종목의 심볼 (없으면 null) */
+  selectedSymbol: string | null;
+  /** 데이터 로딩 상태 */
+  isLoading: boolean;
+  /** 에러 메시지 (없으면 null) */
+  error: string | null;
+  /** 섹션 재조회 핸들러 */
+  onRetry?: () => void;
+  /** 종목 선택 시 호출되는 핸들러 */
+  onSelect: (symbol: string) => void;
+}
+
+/**
+ * [컴포넌트] 보유 종목 리스트
+ * 사용자의 잔고 정보를 바탕으로 실시간 시세가 반영된 종목 카드 목록을 렌더링합니다.
+ *
+ * @param props HoldingsListProps
+ * @see DashboardContainer.tsx - 좌측 메인 영역에서 실시간 병합 데이터를 전달받아 호출
+ * @see DashboardContainer.tsx - setSelectedSymbol 핸들러를 onSelect로 전달
+ */
+export function HoldingsList({
+  holdings,
+  selectedSymbol,
+  isLoading,
+  error,
+  onRetry,
+  onSelect,
+}: HoldingsListProps) {
+  return (
+    <Card className="h-full">
+      {/* ========== 카드 헤더: 타이틀 및 설명 ========== */}
+      <CardHeader className="pb-3">
+        <CardTitle className="flex items-center gap-2 text-base">
+          <Wallet2 className="h-4 w-4 text-brand-600 dark:text-brand-400" />
+          보유 종목
+        </CardTitle>
+        <CardDescription>
+          현재 보유 중인 종목을 선택하면 우측 상세가 갱신됩니다.
+        </CardDescription>
+      </CardHeader>
+
+      {/* ========== 카드 본문: 상태별 메시지 및 리스트 ========== */}
+      <CardContent>
+        {/* 로딩 중 상태 (데이터가 아직 없는 경우) */}
+        {isLoading && holdings.length === 0 && (
+          <p className="text-sm text-muted-foreground">
+            보유 종목을 불러오는 중입니다.
+          </p>
+        )}
+
+        {/* 에러 발생 상태 */}
+        {error && (
+          <div className="mb-2 rounded-md border border-red-200 bg-red-50/60 p-2.5 dark:border-red-900/40 dark:bg-red-950/20">
+            <p className="flex items-start gap-1.5 text-sm text-red-600 dark:text-red-400">
+              <AlertCircle className="mt-0.5 h-4 w-4 shrink-0" />
+              <span>{error}</span>
+            </p>
+            <p className="mt-1 text-xs text-red-700/80 dark:text-red-300/80">
+              한국투자증권 API가 일시적으로 불안정할 수 있습니다. 잠시 후 다시 시도해 주세요.
+            </p>
+            {onRetry ? (
+              <Button
+                type="button"
+                size="sm"
+                variant="outline"
+                onClick={onRetry}
+                className="mt-2 border-red-300 text-red-700 hover:bg-red-100 dark:border-red-700 dark:text-red-300 dark:hover:bg-red-900/40"
+              >
+                <RefreshCcw className="mr-1.5 h-3.5 w-3.5" />
+                보유종목 다시 불러오기
+              </Button>
+            ) : null}
+          </div>
+        )}
+
+        {/* 데이터 없음 상태 */}
+        {!isLoading && holdings.length === 0 && !error && (
+          <p className="text-sm text-muted-foreground">보유 종목이 없습니다.</p>
+        )}
+
+        {/* 종목 리스트 렌더링 영역 */}
+        {holdings.length > 0 && (
+          <ScrollArea className="h-[420px] pr-3">
+            <div className="space-y-2">
+              {holdings.map((holding) => (
+                <HoldingItemRow
+                  key={holding.symbol}
+                  holding={holding}
+                  isSelected={selectedSymbol === holding.symbol}
+                  onSelect={onSelect}
+                />
+              ))}
+            </div>
+          </ScrollArea>
+        )}
+      </CardContent>
+    </Card>
+  );
+}
+
+interface HoldingItemRowProps {
+  /** 개별 종목 정보 */
+  holding: DashboardHoldingItem;
+  /** 선택 여부 */
+  isSelected: boolean;
+  /** 클릭 핸들러 */
+  onSelect: (symbol: string) => void;
+}
+
+/**
+ * [컴포넌트] 보유 종목 개별 행 (아이템)
+ * 종목의 기본 정보와 실시간 시세, 현재 손익 상태를 표시합니다.
+ *
+ * @param props HoldingItemRowProps
+ * @see HoldingsList.tsx - holdings.map 내에서 호출
+ * @see use-price-flash.ts - 현재가 변경 감지 및 애니메이션 효과 트리거
+ */
+function HoldingItemRow({
+  holding,
+  isSelected,
+  onSelect,
+}: HoldingItemRowProps) {
+  // [State/Hook] 현재가 기반 가격 반짝임 효과 상태 관리
+  // @see use-price-flash.ts - 현재가 변경 감지 시 symbol을 기준으로 이펙트 발생 여부 결정
+  const flash = usePriceFlash(holding.currentPrice, holding.symbol);
+
+  // [UI] 손익 상태에 따른 텍스트 색상 클래스 결정 (상승: red, 하락: blue)
+  const toneClass = getChangeToneClass(holding.profitLoss);
+
+  return (
+    <button
+      type="button"
+      // [Step 1] 종목 클릭 시 부모의 선택 핸들러 호출
+      onClick={() => onSelect(holding.symbol)}
+      className={cn(
+        "w-full rounded-xl border px-3 py-3 text-left transition-all relative overflow-hidden",
+        isSelected
+          ? "border-brand-400 bg-brand-50/60 ring-1 ring-brand-300 dark:border-brand-600 dark:bg-brand-900/20 dark:ring-brand-700"
+          : "border-border/70 bg-background hover:border-brand-200 hover:bg-brand-50/30 dark:hover:border-brand-700 dark:hover:bg-brand-900/15",
+      )}
+    >
+      {/* ========== 행 상단: 종목명, 심볼 및 현재가 정보 ========== */}
+      <div className="flex items-center justify-between gap-2">
+        <div>
+          {/* 종목명 및 기본 정보 */}
+          <p className="text-sm font-semibold text-foreground">
+            {holding.name}
+          </p>
+          <p className="text-xs text-muted-foreground">
+            {holding.symbol} · {holding.market} · {holding.quantity}주
+          </p>
+        </div>
+
+        <div className="text-right">
+          <div className="relative inline-flex items-center justify-end gap-1">
+            {/* 시세 변동 애니메이션 (Flash) 표시 영역 */}
+            {flash && (
+              <span
+                key={flash.id}
+                className={cn(
+                  "pointer-events-none absolute -left-12 top-0 whitespace-nowrap text-xs font-bold animate-in fade-in slide-in-from-bottom-1 fill-mode-forwards duration-300",
+                  flash.type === "up" ? "text-red-500" : "text-blue-500",
+                )}
+              >
+                {flash.type === "up" ? "+" : ""}
+                {flash.val.toLocaleString()}
+              </span>
+            )}
+            {/* 실시간 현재가 */}
+            <p className="text-sm font-semibold text-foreground transition-colors duration-300">
+              {formatCurrency(holding.currentPrice)}원
+            </p>
+          </div>
+          {/* 실시간 수익률 */}
+          <p className={cn("text-xs font-medium", toneClass)}>
+            {formatPercent(holding.profitRate)}
+          </p>
+        </div>
+      </div>
+
+      {/* ========== 행 하단: 평단가, 평가액 및 실시간 손익 ========== */}
+      <div className="mt-2 grid grid-cols-3 gap-1 text-xs">
+        <span className="text-muted-foreground">
+          평균 {formatCurrency(holding.averagePrice)}원
+        </span>
+        <span className="text-muted-foreground">
+          평가 {formatCurrency(holding.evaluationAmount)}원
+        </span>
+        <span className={cn("text-right font-medium", toneClass)}>
+          손익 {formatCurrency(holding.profitLoss)}원
+        </span>
+      </div>
+    </button>
+  );
+}

features/dashboard/components/MarketSummary.tsx

@@ -0,0 +1,192 @@
+import { BarChart3, TrendingDown, TrendingUp } from "lucide-react";
+import { RefreshCcw } from "lucide-react";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import type { DashboardMarketIndexItem } from "@/features/dashboard/types/dashboard.types";
+import { Button } from "@/components/ui/button";
+import {
+  formatCurrency,
+  formatSignedCurrency,
+  formatSignedPercent,
+} from "@/features/dashboard/utils/dashboard-format";
+import { cn } from "@/lib/utils";
+import { usePriceFlash } from "@/features/dashboard/hooks/use-price-flash";
+
+interface MarketSummaryProps {
+  items: DashboardMarketIndexItem[];
+  isLoading: boolean;
+  error: string | null;
+  warning?: string | null;
+  isRealtimePending?: boolean;
+  onRetry?: () => void;
+}
+
+/**
+ * @description 코스피/코스닥 지수 요약 카드입니다.
+ * @see features/dashboard/components/DashboardContainer.tsx 우측 상단 영역에서 호출합니다.
+ */
+export function MarketSummary({
+  items,
+  isLoading,
+  error,
+  warning = null,
+  isRealtimePending = false,
+  onRetry,
+}: MarketSummaryProps) {
+  return (
+    <Card className="overflow-hidden border-brand-200/80 bg-linear-to-br from-brand-50/50 to-background dark:border-brand-800/45 dark:from-brand-950/20 dark:to-background">
+      <CardHeader className="pb-2">
+        <div className="flex items-center justify-between">
+          <CardTitle className="flex items-center gap-2 text-base text-brand-700 dark:text-brand-300">
+            <BarChart3 className="h-4 w-4" />
+            시장 지수
+          </CardTitle>
+        </div>
+        <CardDescription>실시간 코스피/코스닥 지수 현황입니다.</CardDescription>
+      </CardHeader>
+
+      <CardContent className="grid gap-3 sm:grid-cols-2 lg:grid-cols-1 xl:grid-cols-2">
+        {/* ========== LOADING STATE ========== */}
+        {isLoading && items.length === 0 && (
+          <div className="col-span-full py-4 text-center text-sm text-muted-foreground animate-pulse">
+            지수 데이터를 불러오는 중입니다...
+          </div>
+        )}
+
+        {/* ========== REALTIME PENDING STATE ========== */}
+        {isRealtimePending && items.length === 0 && !isLoading && !error && (
+          <div className="col-span-full rounded-md bg-amber-50 p-3 text-sm text-amber-700 dark:bg-amber-950/25 dark:text-amber-400">
+            실시간 시세 연결은 완료되었고 첫 지수 데이터를 기다리는 중입니다.
+          </div>
+        )}
+
+        {/* ========== ERROR/WARNING STATE ========== */}
+        {error && (
+          <div className="col-span-full rounded-md bg-red-50 p-3 text-sm text-red-600 dark:bg-red-950/30 dark:text-red-400">
+            <p>지수 정보를 가져오는데 실패했습니다.</p>
+            <p className="mt-1 text-xs opacity-80">
+              {toCompactErrorMessage(error)}
+            </p>
+            <p className="mt-1 text-xs opacity-80">
+              토큰이 정상이어도 한국투자증권 API 점검/지연 시 일시적으로 실패할 수 있습니다.
+            </p>
+            {onRetry ? (
+              <Button
+                type="button"
+                size="sm"
+                variant="outline"
+                onClick={onRetry}
+                className="mt-2 border-red-300 text-red-700 hover:bg-red-100 dark:border-red-700 dark:text-red-300 dark:hover:bg-red-900/40"
+              >
+                <RefreshCcw className="mr-1.5 h-3.5 w-3.5" />
+                지수 다시 불러오기
+              </Button>
+            ) : null}
+          </div>
+        )}
+        {!error && warning && (
+          <div className="col-span-full rounded-md bg-amber-50 p-3 text-sm text-amber-700 dark:bg-amber-950/25 dark:text-amber-400">
+            {warning}
+          </div>
+        )}
+
+        {/* ========== INDEX CARDS ========== */}
+        {items.map((item) => (
+          <IndexItem key={item.code} item={item} />
+        ))}
+
+        {!isLoading && items.length === 0 && !error && (
+          <div className="col-span-full py-4 text-center text-sm text-muted-foreground">
+            표시할 데이터가 없습니다.
+          </div>
+        )}
+      </CardContent>
+    </Card>
+  );
+}
+
+/**
+ * @description 길고 복잡한 서버 오류를 대시보드 카드에 맞는 짧은 문구로 축약합니다.
+ * @param error 원본 오류 문자열
+ * @returns 화면 노출용 오류 메시지
+ * @see features/dashboard/components/MarketSummary.tsx 지수 오류 배너 상세 문구
+ */
+function toCompactErrorMessage(error: string) {
+  const normalized = error.replaceAll(/\s+/g, " ").trim();
+  if (!normalized) return "잠시 후 다시 시도해 주세요.";
+  if (normalized.length <= 120) return normalized;
+  return `${normalized.slice(0, 120)}...`;
+}
+
+function IndexItem({ item }: { item: DashboardMarketIndexItem }) {
+  const isUp = item.change > 0;
+  const isDown = item.change < 0;
+  const toneClass = isUp
+    ? "text-red-600 dark:text-red-400"
+    : isDown
+      ? "text-blue-600 dark:text-blue-400"
+      : "text-muted-foreground";
+
+  const bgClass = isUp
+    ? "bg-red-50/50 dark:bg-red-950/10 border-red-100 dark:border-red-900/30"
+    : isDown
+      ? "bg-blue-50/50 dark:bg-blue-950/10 border-blue-100 dark:border-blue-900/30"
+      : "bg-muted/50 border-border/50";
+
+  const flash = usePriceFlash(item.price, item.code);
+
+  return (
+    <div
+      className={cn(
+        "relative flex flex-col justify-between rounded-xl border p-4 transition-all hover:bg-background/80",
+        bgClass,
+      )}
+    >
+      <div className="flex items-center justify-between">
+        <span className="text-sm font-medium text-muted-foreground">
+          {item.market}
+        </span>
+        {isUp ? (
+          <TrendingUp className="h-4 w-4 text-red-500/70" />
+        ) : isDown ? (
+          <TrendingDown className="h-4 w-4 text-blue-500/70" />
+        ) : null}
+      </div>
+
+      <div className="mt-2 text-2xl font-bold tracking-tight relative w-fit">
+        {formatCurrency(item.price)}
+
+        {/* Flash Indicator */}
+        {flash && (
+          <div
+            key={flash.id} // Force re-render for animation restart using state ID
+            className={cn(
+              "absolute left-full top-1 ml-2 text-sm font-bold animate-out fade-out slide-out-to-top-2 duration-1000 fill-mode-forwards pointer-events-none whitespace-nowrap",
+              flash.type === "up" ? "text-red-500" : "text-blue-500",
+            )}
+          >
+            {flash.type === "up" ? "+" : ""}
+            {flash.val.toFixed(2)}
+          </div>
+        )}
+      </div>
+
+      <div
+        className={cn(
+          "mt-1 flex items-center gap-2 text-sm font-medium",
+          toneClass,
+        )}
+      >
+        <span>{formatSignedCurrency(item.change)}</span>
+        <span className="rounded-md bg-background/50 px-1.5 py-0.5 text-xs shadow-sm">
+          {formatSignedPercent(item.changeRate)}
+        </span>
+      </div>
+    </div>
+  );
+}

features/dashboard/components/StatusHeader.tsx

@@ -0,0 +1,219 @@
+import Link from "next/link";
+import { Activity, RefreshCcw, Settings2, Wifi } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { Card, CardContent } from "@/components/ui/card";
+import type { DashboardBalanceSummary } from "@/features/dashboard/types/dashboard.types";
+import {
+  formatCurrency,
+  formatSignedCurrency,
+  formatSignedPercent,
+  getChangeToneClass,
+} from "@/features/dashboard/utils/dashboard-format";
+import { cn } from "@/lib/utils";
+
+interface StatusHeaderProps {
+  summary: DashboardBalanceSummary | null;
+  isKisRestConnected: boolean;
+  isWebSocketReady: boolean;
+  isRealtimePending: boolean;
+  isProfileVerified: boolean;
+  verifiedAccountNo: string | null;
+  isRefreshing: boolean;
+  lastUpdatedAt: string | null;
+  onRefresh: () => void;
+}
+
+/**
+ * @description 대시보드 상단 상태 헤더(총자산/손익/연결상태/빠른액션) 컴포넌트입니다.
+ * @see features/dashboard/components/DashboardContainer.tsx 대시보드 루트에서 상태 값을 전달받아 렌더링합니다.
+ */
+export function StatusHeader({
+  summary,
+  isKisRestConnected,
+  isWebSocketReady,
+  isRealtimePending,
+  isProfileVerified,
+  verifiedAccountNo,
+  isRefreshing,
+  lastUpdatedAt,
+  onRefresh,
+}: StatusHeaderProps) {
+  const toneClass = getChangeToneClass(summary?.totalProfitLoss ?? 0);
+  const updatedLabel = lastUpdatedAt
+    ? new Date(lastUpdatedAt).toLocaleTimeString("ko-KR", {
+        hour12: false,
+      })
+    : "--:--:--";
+  const hasApiTotalAmount =
+    Boolean(summary) && (summary?.apiReportedTotalAmount ?? 0) > 0;
+  const hasApiNetAssetAmount =
+    Boolean(summary) && (summary?.apiReportedNetAssetAmount ?? 0) > 0;
+  const isApiTotalAmountDifferent =
+    Boolean(summary) &&
+    Math.abs(
+      (summary?.apiReportedTotalAmount ?? 0) - (summary?.totalAmount ?? 0),
+    ) >= 1;
+  const realtimeStatusLabel = isWebSocketReady
+    ? isRealtimePending
+      ? "수신 대기중"
+      : "연결됨"
+    : "미연결";
+
+  return (
+    <Card className="relative overflow-hidden border-brand-200 shadow-sm dark:border-brand-800/50">
+      {/* ========== BACKGROUND DECORATION ========== */}
+      <div className="pointer-events-none absolute inset-x-0 top-0 h-20 bg-linear-to-r from-brand-100/70 via-brand-50/50 to-transparent dark:from-brand-900/35 dark:via-brand-900/20" />
+
+      <CardContent className="relative grid gap-3 p-4 md:grid-cols-[1fr_1fr_1fr_auto]">
+        {/* ========== TOTAL ASSET ========== */}
+        <div className="rounded-xl border border-border/70 bg-background/90 px-4 py-3">
+          <p className="text-xs font-medium text-muted-foreground">내 자산 (순자산 실시간)</p>
+          <p className="mt-1 text-xl font-semibold tracking-tight">
+            {summary ? `${formatCurrency(summary.totalAmount)}원` : "-"}
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            현금(예수금) {summary ? `${formatCurrency(summary.cashBalance)}원` : "-"}
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            주식 평가금{" "}
+            {summary ? `${formatCurrency(summary.evaluationAmount)}원` : "-"}
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            총예수금(KIS){" "}
+            {summary ? `${formatCurrency(summary.totalDepositAmount)}원` : "-"}
+          </p>
+          <p className="mt-1 text-[11px] text-muted-foreground/80">
+            총예수금은 결제 대기 금액이 포함될 수 있어 체감 현금과 다를 수 있습니다.
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            순자산(대출 반영){" "}
+            {summary ? `${formatCurrency(summary.netAssetAmount)}원` : "-"}
+          </p>
+          {hasApiTotalAmount && isApiTotalAmountDifferent ? (
+            <p className="mt-1 text-xs text-muted-foreground">
+              KIS 집계 총자산 {formatCurrency(summary?.apiReportedTotalAmount ?? 0)}원
+            </p>
+          ) : null}
+          {hasApiNetAssetAmount ? (
+            <p className="mt-1 text-xs text-muted-foreground">
+              KIS 집계 순자산 {formatCurrency(summary?.apiReportedNetAssetAmount ?? 0)}원
+            </p>
+          ) : null}
+        </div>
+
+        {/* ========== PROFIT/LOSS ========== */}
+        <div className="rounded-xl border border-border/70 bg-background/90 px-4 py-3">
+          <p className="text-xs font-medium text-muted-foreground">현재 손익</p>
+          <p
+            className={cn(
+              "mt-1 text-xl font-semibold tracking-tight",
+              toneClass,
+            )}
+          >
+            {summary ? `${formatSignedCurrency(summary.totalProfitLoss)}원` : "-"}
+          </p>
+          <p className={cn("mt-1 text-xs font-medium", toneClass)}>
+            {summary ? formatSignedPercent(summary.totalProfitRate) : "-"}
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            현재 평가금액{" "}
+            {summary ? `${formatCurrency(summary.evaluationAmount)}원` : "-"}
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            총 매수금액{" "}
+            {summary ? `${formatCurrency(summary.purchaseAmount)}원` : "-"}
+          </p>
+        </div>
+
+        {/* ========== CONNECTION STATUS ========== */}
+        <div className="rounded-xl border border-border/70 bg-background/90 px-4 py-3">
+          <p className="text-xs font-medium text-muted-foreground">연결 상태</p>
+          <div className="mt-2 flex flex-wrap items-center gap-2 text-xs font-medium">
+            <span
+              className={cn(
+                "inline-flex items-center gap-1 rounded-full px-2 py-1",
+                isKisRestConnected
+                  ? "bg-emerald-500/10 text-emerald-600 dark:text-emerald-400"
+                  : "bg-red-500/10 text-red-600 dark:text-red-400",
+              )}
+            >
+              <Wifi className="h-3.5 w-3.5" />
+              서버 {isKisRestConnected ? "연결됨" : "연결 끊김"}
+            </span>
+            <span
+              className={cn(
+                "inline-flex items-center gap-1 rounded-full px-2 py-1",
+                isWebSocketReady
+                  ? isRealtimePending
+                    ? "bg-amber-500/10 text-amber-700 dark:text-amber-400"
+                    : "bg-emerald-500/10 text-emerald-600 dark:text-emerald-400"
+                  : "bg-muted text-muted-foreground",
+              )}
+            >
+              <Activity className="h-3.5 w-3.5" />
+              실시간 시세 {realtimeStatusLabel}
+            </span>
+            <span
+              className={cn(
+                "inline-flex items-center gap-1 rounded-full px-2 py-1",
+                isProfileVerified
+                  ? "bg-emerald-500/10 text-emerald-600 dark:text-emerald-400"
+                  : "bg-amber-500/10 text-amber-700 dark:text-amber-400",
+              )}
+            >
+              <Activity className="h-3.5 w-3.5" />
+              계좌 인증 {isProfileVerified ? "완료" : "미완료"}
+            </span>
+          </div>
+          <p className="mt-2 text-xs text-muted-foreground">
+            마지막 업데이트 {updatedLabel}
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            계좌 {maskAccountNo(verifiedAccountNo)}
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            대출금 {summary ? `${formatCurrency(summary.loanAmount)}원` : "-"}
+          </p>
+        </div>
+
+        {/* ========== QUICK ACTIONS ========== */}
+        <div className="flex flex-col gap-2 sm:flex-row md:flex-col md:items-stretch md:justify-center">
+          <Button
+            type="button"
+            variant="outline"
+            onClick={onRefresh}
+            disabled={isRefreshing}
+            className="w-full border-brand-200 text-brand-700 hover:bg-brand-50 dark:border-brand-700 dark:text-brand-300 dark:hover:bg-brand-900/30"
+          >
+            <RefreshCcw
+              className={cn("h-4 w-4 mr-2", isRefreshing ? "animate-spin" : "")}
+            />
+            지금 다시 불러오기
+          </Button>
+          <Button
+            asChild
+            className="w-full bg-brand-600 text-white hover:bg-brand-700 dark:bg-brand-600 dark:text-white dark:hover:bg-brand-500"
+          >
+            <Link href="/settings">
+              <Settings2 className="h-4 w-4 mr-2" />
+              연결 설정
+            </Link>
+          </Button>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+/**
+ * @description 계좌번호를 마스킹해 표시합니다.
+ * @param value 계좌번호(8-2)
+ * @returns 마스킹 문자열
+ * @see features/dashboard/components/StatusHeader.tsx 시스템 상태 영역 계좌 표시
+ */
+function maskAccountNo(value: string | null) {
+  if (!value) return "-";
+  const digits = value.replace(/\D/g, "");
+  if (digits.length !== 10) return "********";
+  return "********-**";
+}

features/dashboard/components/StockDetailPreview.tsx

@@ -0,0 +1,228 @@
+/**
+ * @file StockDetailPreview.tsx
+ * @description 대시보드 우측 영역의 선택 종목 상세 정보 및 실시간 시세 반영 컴포넌트
+ * @remarks
+ * - [레이어] Components / UI
+ * - [사용자 행동] 종목 리스트에서 항목 선택 -> 상세 정보 조회 -> 실시간 시세 변동 확인
+ * - [데이터 흐름] DashboardContainer(realtimeSelectedHolding) -> StockDetailPreview -> Metric(UI)
+ * - [연관 파일] DashboardContainer.tsx, dashboard.types.ts, use-price-flash.ts
+ * @author jihoon87.lee
+ */
+import { BarChartBig, ExternalLink, MousePointerClick } from "lucide-react";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { useRouter } from "next/navigation";
+import { usePriceFlash } from "@/features/dashboard/hooks/use-price-flash";
+import type { DashboardHoldingItem } from "@/features/dashboard/types/dashboard.types";
+import {
+  formatCurrency,
+  formatPercent,
+  getChangeToneClass,
+} from "@/features/dashboard/utils/dashboard-format";
+import { cn } from "@/lib/utils";
+
+interface StockDetailPreviewProps {
+  /** 선택된 종목 정보 (없으면 null) */
+  holding: DashboardHoldingItem | null;
+  /** 현재 총 자산 (비중 계산용) */
+  totalAmount: number;
+}
+
+/**
+ * [컴포넌트] 선택 종목 상세 요약 카드
+ * 대시보드에서 선택된 특정 종목의 매입가, 현재가, 수익률 등 상세 지표를 실시간으로 보여줍니다.
+ *
+ * @param props StockDetailPreviewProps
+ * @see DashboardContainer.tsx - HoldingsList 선택 결과를 실시간 데이터로 전달받아 렌더링
+ */
+export function StockDetailPreview({
+  holding,
+  totalAmount,
+}: StockDetailPreviewProps) {
+  const router = useRouter();
+  // [State/Hook] 실시간 가격 변동 애니메이션 상태 관리
+  // @remarks 종목이 선택되지 않았을 때를 대비해 safe value(0)를 전달하며, 종목 변경 시 효과를 초기화하도록 symbol 전달
+  const currentPrice = holding?.currentPrice ?? 0;
+  const priceFlash = usePriceFlash(currentPrice, holding?.symbol);
+
+  // [Step 1] 종목이 선택되지 않은 경우 초기 안내 화면 렌더링
+  if (!holding) {
+    return (
+      <Card>
+        <CardHeader>
+          <CardTitle className="flex items-center gap-2 text-base">
+            <BarChartBig className="h-4 w-4 text-brand-600 dark:text-brand-400" />
+            선택 종목 정보
+          </CardTitle>
+          <CardDescription>
+            보유 종목을 선택하면 자세한 정보가 표시됩니다.
+          </CardDescription>
+        </CardHeader>
+        <CardContent>
+          <p className="text-sm text-muted-foreground">
+            왼쪽 보유 종목 리스트에서 종목을 선택해 주세요.
+          </p>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  // [Step 2] 수익/손실 여부에 따른 UI 톤(색상) 결정
+  const profitToneClass = getChangeToneClass(holding.profitLoss);
+
+  // [Step 3] 총 자산 대비 비중 계산
+  const allocationRate =
+    totalAmount > 0
+      ? Math.min((holding.evaluationAmount / totalAmount) * 100, 100)
+      : 0;
+
+  return (
+    <Card>
+      {/* ========== 카드 헤더: 종목명 및 기본 정보 ========== */}
+      <CardHeader className="pb-3">
+        <CardTitle className="flex items-center gap-2 text-base">
+          <BarChartBig className="h-4 w-4 text-brand-600 dark:text-brand-400" />
+          선택 종목 정보
+        </CardTitle>
+        <CardDescription className="flex items-center gap-1.5 flex-wrap">
+          <button
+            type="button"
+            onClick={() =>
+              router.push(
+                `/trade?symbol=${holding.symbol}&name=${encodeURIComponent(holding.name)}`,
+              )
+            }
+            className={cn(
+              "group flex items-center gap-1.5 rounded-md border border-brand-200 bg-brand-50 px-2 py-0.5",
+              "text-sm font-bold text-brand-700 transition-all cursor-pointer",
+              "hover:border-brand-400 hover:bg-brand-100 hover:shadow-sm",
+              "dark:border-brand-800/60 dark:bg-brand-900/40 dark:text-brand-400 dark:hover:border-brand-600 dark:hover:bg-brand-900/60",
+            )}
+            title={`${holding.name} 종목 상세 거래로 이동`}
+          >
+            <span className="truncate">{holding.name}</span>
+            <span className="text-[10px] font-medium opacity-70">
+              ({holding.symbol})
+            </span>
+            <ExternalLink className="h-3 w-3 transition-transform group-hover:translate-x-0.5 group-hover:-translate-y-0.5" />
+          </button>
+          <span className="text-xs text-muted-foreground">
+            · {holding.market}
+          </span>
+        </CardDescription>
+      </CardHeader>
+
+      <CardContent className="space-y-4">
+        {/* ========== 실시간 주요 지표 영역 (Grid) ========== */}
+        <div className="grid grid-cols-2 gap-2 text-sm">
+          <Metric
+            label="보유 수량"
+            value={`${holding.quantity.toLocaleString("ko-KR")}주`}
+          />
+          <Metric
+            label="매입 평균가"
+            value={`${formatCurrency(holding.averagePrice)}원`}
+          />
+          <Metric
+            label="현재가"
+            value={`${formatCurrency(holding.currentPrice)}원`}
+            flash={priceFlash}
+          />
+          <Metric
+            label="수익률"
+            value={formatPercent(holding.profitRate)}
+            valueClassName={profitToneClass}
+          />
+          <Metric
+            label="현재 손익"
+            value={`${formatCurrency(holding.profitLoss)}원`}
+            valueClassName={profitToneClass}
+          />
+          <Metric
+            label="평가금액"
+            value={`${formatCurrency(holding.evaluationAmount)}원`}
+          />
+        </div>
+
+        {/* ========== 자산 비중 그래프 영역 ========== */}
+        <div className="rounded-xl border border-border/70 bg-background/70 p-3">
+          <div className="flex items-center justify-between text-xs text-muted-foreground">
+            <span>총 자산 대비 비중</span>
+            <span>{formatPercent(allocationRate)}</span>
+          </div>
+          <div className="mt-2 h-2 rounded-full bg-muted">
+            <div
+              className="h-2 rounded-full bg-linear-to-r from-brand-500 to-brand-700"
+              style={{ width: `${allocationRate}%` }}
+            />
+          </div>
+        </div>
+
+        {/* ========== 추가 기능 예고 영역 (Placeholder) ========== */}
+        <div className="rounded-xl border border-dashed border-border/80 bg-muted/30 p-3">
+          <p className="flex items-center gap-1.5 text-sm font-medium text-foreground/80">
+            <MousePointerClick className="h-4 w-4 text-brand-500" />
+            빠른 주문(준비 중)
+          </p>
+          <p className="mt-1 text-xs text-muted-foreground">
+            향후 이 영역에서 선택 종목의 빠른 매수/매도 기능을 제공합니다.
+          </p>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+interface MetricProps {
+  /** 지표 레이블 */
+  label: string;
+  /** 표시될 값 */
+  value: string;
+  /** 값 텍스트 추가 스타일 */
+  valueClassName?: string;
+  /** 가격 변동 애니메이션 상태 */
+  flash?: { type: "up" | "down"; val: number; id: number } | null;
+}
+
+/**
+ * [컴포넌트] 상세 카드용 개별 지표 아이템
+ * 레이블과 값을 박스 형태로 렌더링하며, 필요한 경우 시세 변동 Flash 애니메이션을 처리합니다.
+ *
+ * @param props MetricProps
+ * @see StockDetailPreview.tsx - 내부 그리드 영역에서 여러 개 호출
+ */
+function Metric({ label, value, valueClassName, flash }: MetricProps) {
+  return (
+    <div className="relative overflow-hidden rounded-xl border border-border/70 bg-background/70 p-3 transition-colors">
+      {/* 시세 변동 시 나타나는 일시적인 수치 표시 (Flash) */}
+      {flash && (
+        <span
+          key={flash.id}
+          className={cn(
+            "pointer-events-none absolute right-2 top-2 text-xs font-bold animate-in fade-in slide-in-from-bottom-1 fill-mode-forwards duration-300",
+            flash.type === "up" ? "text-red-500" : "text-blue-500",
+          )}
+        >
+          {flash.type === "up" ? "+" : ""}
+          {flash.val.toLocaleString()}
+        </span>
+      )}
+
+      {/* 지표 레이블 및 본체 값 */}
+      <p className="text-xs text-muted-foreground">{label}</p>
+      <p
+        className={cn(
+          "mt-1 text-sm font-semibold text-foreground transition-colors",
+          valueClassName,
+        )}
+      >
+        {value}
+      </p>
+    </div>
+  );
+}

features/dashboard/hooks/use-dashboard-data.ts

@@ -0,0 +1,198 @@
+"use client";
+
+import { useCallback, useEffect, useRef, useState } from "react";
+import type { KisRuntimeCredentials } from "@/features/settings/store/use-kis-runtime-store";
+import {
+  fetchDashboardActivity,
+  fetchDashboardBalance,
+  fetchDashboardIndices,
+} from "@/features/dashboard/apis/dashboard.api";
+import type {
+  DashboardActivityResponse,
+  DashboardBalanceResponse,
+  DashboardIndicesResponse,
+} from "@/features/dashboard/types/dashboard.types";
+
+interface UseDashboardDataResult {
+  activity: DashboardActivityResponse | null;
+  balance: DashboardBalanceResponse | null;
+  indices: DashboardIndicesResponse["items"];
+  selectedSymbol: string | null;
+  setSelectedSymbol: (symbol: string) => void;
+  isLoading: boolean;
+  isRefreshing: boolean;
+  activityError: string | null;
+  balanceError: string | null;
+  indicesError: string | null;
+  lastUpdatedAt: string | null;
+  refresh: () => Promise<void>;
+}
+
+const POLLING_INTERVAL_MS = 60_000;
+
+/**
+ * @description 대시보드 잔고/지수 상태를 관리하는 훅입니다.
+ * @param credentials KIS 인증 정보
+ * @returns 대시보드 데이터/로딩/오류 상태
+ * @remarks UI 흐름: 대시보드 진입 -> refresh("initial") -> balance/indices API 병렬 호출 -> 카드별 상태 반영
+ * @see features/dashboard/components/DashboardContainer.tsx 대시보드 루트 컨테이너
+ * @see features/dashboard/apis/dashboard.api.ts 실제 API 호출 함수
+ */
+export function useDashboardData(
+  credentials: KisRuntimeCredentials | null,
+): UseDashboardDataResult {
+  const [activity, setActivity] = useState<DashboardActivityResponse | null>(null);
+  const [balance, setBalance] = useState<DashboardBalanceResponse | null>(null);
+  const [indices, setIndices] = useState<DashboardIndicesResponse["items"]>([]);
+  const [selectedSymbol, setSelectedSymbolState] = useState<string | null>(null);
+  const [isLoading, setIsLoading] = useState(true);
+  const [isRefreshing, setIsRefreshing] = useState(false);
+  const [activityError, setActivityError] = useState<string | null>(null);
+  const [balanceError, setBalanceError] = useState<string | null>(null);
+  const [indicesError, setIndicesError] = useState<string | null>(null);
+  const [lastUpdatedAt, setLastUpdatedAt] = useState<string | null>(null);
+
+  const requestSeqRef = useRef(0);
+
+  const hasAccountNo = Boolean(credentials?.accountNo?.trim());
+
+  /**
+   * @description 잔고/지수 데이터를 병렬로 갱신합니다.
+   * @param mode 초기 로드/수동 새로고침/주기 갱신 구분
+   * @see features/dashboard/hooks/use-dashboard-data.ts useEffect 초기 호출/폴링/수동 새로고침
+   */
+  const refreshInternal = useCallback(
+    async (mode: "initial" | "manual" | "polling") => {
+      if (!credentials) return;
+
+      const requestSeq = ++requestSeqRef.current;
+      const isInitial = mode === "initial";
+
+      if (isInitial) {
+        setIsLoading(true);
+      } else {
+        setIsRefreshing(true);
+      }
+
+      const tasks: [
+        Promise<DashboardBalanceResponse | null>,
+        Promise<DashboardIndicesResponse>,
+        Promise<DashboardActivityResponse | null>,
+      ] = [
+        hasAccountNo
+          ? fetchDashboardBalance(credentials)
+          : Promise.resolve(null),
+        fetchDashboardIndices(credentials),
+        hasAccountNo
+          ? fetchDashboardActivity(credentials)
+          : Promise.resolve(null),
+      ];
+
+      const [balanceResult, indicesResult, activityResult] = await Promise.allSettled(tasks);
+      if (requestSeq !== requestSeqRef.current) return;
+
+      let hasAnySuccess = false;
+
+      if (!hasAccountNo) {
+        setBalance(null);
+        setBalanceError(
+          "계좌번호가 없어 잔고를 조회할 수 없습니다. 설정에서 계좌번호(8-2)를 입력해 주세요.",
+        );
+        setActivity(null);
+        setActivityError(
+          "계좌번호가 없어 주문내역/매매일지를 조회할 수 없습니다. 설정에서 계좌번호(8-2)를 입력해 주세요.",
+        );
+        setSelectedSymbolState(null);
+      } else if (balanceResult.status === "fulfilled") {
+        hasAnySuccess = true;
+        setBalance(balanceResult.value);
+        setBalanceError(null);
+
+        setSelectedSymbolState((prev) => {
+          const nextHoldings = balanceResult.value?.holdings ?? [];
+          if (nextHoldings.length === 0) return null;
+          if (prev && nextHoldings.some((item) => item.symbol === prev)) {
+            return prev;
+          }
+          return nextHoldings[0]?.symbol ?? null;
+        });
+      } else {
+        setBalanceError(balanceResult.reason instanceof Error ? balanceResult.reason.message : "잔고 조회에 실패했습니다.");
+      }
+
+      if (hasAccountNo && activityResult.status === "fulfilled") {
+        hasAnySuccess = true;
+        setActivity(activityResult.value);
+        setActivityError(null);
+      } else if (hasAccountNo && activityResult.status === "rejected") {
+        setActivityError(activityResult.reason instanceof Error ? activityResult.reason.message : "주문내역/매매일지 조회에 실패했습니다.");
+      }
+
+      if (indicesResult.status === "fulfilled") {
+        hasAnySuccess = true;
+        setIndices(indicesResult.value.items);
+        setIndicesError(null);
+      } else {
+        setIndicesError(indicesResult.reason instanceof Error ? indicesResult.reason.message : "시장 지수 조회에 실패했습니다.");
+      }
+
+      if (hasAnySuccess) {
+        setLastUpdatedAt(new Date().toISOString());
+      }
+
+      if (isInitial) {
+        setIsLoading(false);
+      } else {
+        setIsRefreshing(false);
+      }
+    },
+    [credentials, hasAccountNo],
+  );
+
+  /**
+   * @description 대시보드 수동 새로고침 핸들러입니다.
+   * @see features/dashboard/components/StatusHeader.tsx 새로고침 버튼 onClick
+   */
+  const refresh = useCallback(async () => {
+    await refreshInternal("manual");
+  }, [refreshInternal]);
+
+  useEffect(() => {
+    if (!credentials) return;
+
+    const timeout = window.setTimeout(() => {
+      void refreshInternal("initial");
+    }, 0);
+
+    return () => window.clearTimeout(timeout);
+  }, [credentials, refreshInternal]);
+
+  useEffect(() => {
+    if (!credentials) return;
+
+    const interval = window.setInterval(() => {
+      void refreshInternal("polling");
+    }, POLLING_INTERVAL_MS);
+
+    return () => window.clearInterval(interval);
+  }, [credentials, refreshInternal]);
+
+  const setSelectedSymbol = useCallback((symbol: string) => {
+    setSelectedSymbolState(symbol);
+  }, []);
+
+  return {
+    activity,
+    balance,
+    indices,
+    selectedSymbol,
+    setSelectedSymbol,
+    isLoading,
+    isRefreshing,
+    activityError,
+    balanceError,
+    indicesError,
+    lastUpdatedAt,
+    refresh,
+  };
+}

features/dashboard/hooks/use-holdings-realtime.ts

@@ -0,0 +1,76 @@
+"use client";
+
+import { useEffect, useMemo, useState } from "react";
+import type { DashboardHoldingItem } from "@/features/dashboard/types/dashboard.types";
+import {
+  type KisRealtimeStockTick,
+  parseKisRealtimeStockTick,
+} from "@/features/dashboard/utils/kis-stock-realtime.utils";
+import { useKisWebSocketStore } from "@/features/kis-realtime/stores/kisWebSocketStore";
+
+const STOCK_REALTIME_TR_ID = "H0STCNT0";
+
+/**
+ * @description 보유 종목 목록에 대한 실시간 체결 데이터를 구독합니다.
+ * @param holdings 보유 종목 목록
+ * @returns 종목별 실시간 체결 데이터/연결 상태
+ * @remarks UI 흐름: DashboardContainer -> useHoldingsRealtime -> HoldingsList/summary 실시간 반영
+ * @see features/dashboard/components/DashboardContainer.tsx 보유종목 실시간 병합
+ */
+export function useHoldingsRealtime(holdings: DashboardHoldingItem[]) {
+  const [realtimeData, setRealtimeData] = useState<
+    Record<string, KisRealtimeStockTick>
+  >({});
+  const { subscribe, connect, isConnected } = useKisWebSocketStore();
+
+  const uniqueSymbols = useMemo(
+    () => Array.from(new Set((holdings ?? []).map((item) => item.symbol))).sort(),
+    [holdings],
+  );
+  const symbolKey = useMemo(() => uniqueSymbols.join(","), [uniqueSymbols]);
+
+  useEffect(() => {
+    if (uniqueSymbols.length === 0) {
+      const resetTimerId = window.setTimeout(() => {
+        setRealtimeData({});
+      }, 0);
+      return () => window.clearTimeout(resetTimerId);
+    }
+
+    if (!isConnected) {
+      connect();
+    }
+
+    const unsubs: (() => void)[] = [];
+
+    uniqueSymbols.forEach((symbol) => {
+      const unsub = subscribe(STOCK_REALTIME_TR_ID, symbol, (data) => {
+        const tick = parseKisRealtimeStockTick(data);
+        if (tick) {
+          setRealtimeData((prev) => {
+            const prevTick = prev[tick.symbol];
+            if (
+              prevTick?.currentPrice === tick.currentPrice &&
+              prevTick?.change === tick.change &&
+              prevTick?.changeRate === tick.changeRate
+            ) {
+              return prev;
+            }
+
+            return {
+              ...prev,
+              [tick.symbol]: tick,
+            };
+          });
+        }
+      });
+      unsubs.push(unsub);
+    });
+
+    return () => {
+      unsubs.forEach((unsub) => unsub());
+    };
+  }, [symbolKey, uniqueSymbols, connect, subscribe, isConnected]);
+
+  return { realtimeData, isConnected };
+}

features/dashboard/hooks/use-market-realtime.ts

@@ -0,0 +1,77 @@
+"use client";
+
+import { useState, useCallback } from "react";
+import {
+  parseKisRealtimeIndexTick,
+  type KisRealtimeIndexTick,
+} from "@/features/dashboard/utils/kis-index-realtime.utils";
+import { useKisWebSocket } from "@/features/kis-realtime/hooks/useKisWebSocket";
+import type { KisRuntimeCredentials } from "@/features/settings/store/use-kis-runtime-store";
+
+const INDEX_TR_ID = "H0UPCNT0";
+const KOSPI_SYMBOL = "0001";
+const KOSDAQ_SYMBOL = "1001";
+
+interface UseMarketRealtimeResult {
+  realtimeIndices: Record<string, KisRealtimeIndexTick>;
+  isConnected: boolean;
+  hasReceivedTick: boolean;
+  isPending: boolean;
+  lastTickAt: string | null;
+}
+
+/**
+ * @description 코스피/코스닥 실시간 지수 웹소켓 구독 상태를 관리합니다.
+ * @param credentials KIS 인증 정보(하위 호환 파라미터)
+ * @param isVerified KIS 연결 인증 여부
+ * @returns 실시간 지수 맵/연결 상태/수신 대기 상태
+ * @remarks UI 흐름: DashboardContainer -> useMarketRealtime -> MarketSummary/StatusHeader 렌더링 반영
+ * @see features/dashboard/components/DashboardContainer.tsx 지수 데이터 통합 및 상태 전달
+ */
+export function useMarketRealtime(
+  _credentials: KisRuntimeCredentials | null, // 하위 호환성을 위해 남겨둠 (실제로는 스토어 사용)
+  isVerified: boolean, // 하위 호환성을 위해 남겨둠
+): UseMarketRealtimeResult {
+  const [realtimeIndices, setRealtimeIndices] = useState<
+    Record<string, KisRealtimeIndexTick>
+  >({});
+  const [lastTickAt, setLastTickAt] = useState<string | null>(null);
+
+  const handleMessage = useCallback((data: string) => {
+    const tick = parseKisRealtimeIndexTick(data);
+    if (tick) {
+      setLastTickAt(new Date().toISOString());
+      setRealtimeIndices((prev) => ({
+        ...prev,
+        [tick.symbol]: tick,
+      }));
+    }
+  }, []);
+
+  // KOSPI 구독
+  const { isConnected: isKospiConnected } = useKisWebSocket({
+    symbol: KOSPI_SYMBOL,
+    trId: INDEX_TR_ID,
+    onMessage: handleMessage,
+    enabled: isVerified,
+  });
+
+  // KOSDAQ 구독
+  const { isConnected: isKosdaqConnected } = useKisWebSocket({
+    symbol: KOSDAQ_SYMBOL,
+    trId: INDEX_TR_ID,
+    onMessage: handleMessage,
+    enabled: isVerified,
+  });
+
+  const hasReceivedTick = Object.keys(realtimeIndices).length > 0;
+  const isPending = isVerified && (isKospiConnected || isKosdaqConnected) && !hasReceivedTick;
+
+  return {
+    realtimeIndices,
+    isConnected: isKospiConnected || isKosdaqConnected,
+    hasReceivedTick,
+    isPending,
+    lastTickAt,
+  };
+}

features/dashboard/hooks/use-price-flash.ts

@@ -0,0 +1,73 @@
+"use client";
+
+import { useEffect, useRef, useState } from "react";
+
+const FLASH_DURATION_MS = 2_000;
+
+/**
+ * @description 가격 변동 시 일시 플래시(+/-) 값을 생성합니다.
+ * @param currentPrice 현재가
+ * @param key 종목 식별 키(종목 변경 시 상태 초기화)
+ * @returns 플래시 값(up/down, 변화량) 또는 null
+ * @remarks UI 흐름: 시세 변경 -> usePriceFlash -> 플래시 값 노출 -> 2초 후 자동 제거
+ * @see features/dashboard/components/HoldingsList.tsx 보유종목 현재가 플래시
+ * @see features/dashboard/components/StockDetailPreview.tsx 상세 카드 현재가 플래시
+ */
+export function usePriceFlash(currentPrice: number, key?: string) {
+  const [flash, setFlash] = useState<{
+    val: number;
+    type: "up" | "down";
+    id: number;
+  } | null>(null);
+
+  const prevKeyRef = useRef<string | undefined>(key);
+  const prevPriceRef = useRef<number>(currentPrice);
+  const timerRef = useRef<number | null>(null);
+
+  useEffect(() => {
+    const keyChanged = prevKeyRef.current !== key;
+
+    if (keyChanged) {
+      prevKeyRef.current = key;
+      prevPriceRef.current = currentPrice;
+      if (timerRef.current !== null) {
+        window.clearTimeout(timerRef.current);
+        timerRef.current = null;
+      }
+      const resetTimerId = window.setTimeout(() => {
+        setFlash(null);
+      }, 0);
+      return () => window.clearTimeout(resetTimerId);
+    }
+
+    const prevPrice = prevPriceRef.current;
+    const diff = currentPrice - prevPrice;
+    prevPriceRef.current = currentPrice;
+
+    if (prevPrice === 0 || Math.abs(diff) === 0) return;
+
+    // 플래시가 보이는 동안에는 새 플래시를 덮어쓰지 않아 화면 잔상이 지속되지 않게 합니다.
+    if (timerRef.current !== null) return;
+
+    setFlash({
+      val: diff,
+      type: diff > 0 ? "up" : "down",
+      id: Date.now(),
+    });
+
+    timerRef.current = window.setTimeout(() => {
+      setFlash(null);
+      timerRef.current = null;
+    }, FLASH_DURATION_MS);
+  }, [currentPrice, key]);
+
+  useEffect(() => {
+    return () => {
+      if (timerRef.current !== null) {
+        window.clearTimeout(timerRef.current);
+      }
+    };
+  }, []);
+
+  return flash;
+}

features/dashboard/types/dashboard.types.ts

@@ -0,0 +1,141 @@
+/**
+ * @file features/dashboard/types/dashboard.types.ts
+ * @description 대시보드(잔고/지수/보유종목) 전용 타입 정의
+ */
+
+import type { KisTradingEnv } from "@/features/trade/types/trade.types";
+
+export type DashboardMarket = "KOSPI" | "KOSDAQ";
+
+/**
+ * 대시보드 잔고 요약
+ */
+export interface DashboardBalanceSummary {
+  totalAmount: number;
+  cashBalance: number;
+  totalDepositAmount: number;
+  totalProfitLoss: number;
+  totalProfitRate: number;
+  netAssetAmount: number;
+  evaluationAmount: number;
+  purchaseAmount: number;
+  loanAmount: number;
+  apiReportedTotalAmount: number;
+  apiReportedNetAssetAmount: number;
+}
+
+/**
+ * 대시보드 보유 종목 항목
+ */
+export interface DashboardHoldingItem {
+  symbol: string;
+  name: string;
+  market: DashboardMarket;
+  quantity: number;
+  averagePrice: number;
+  currentPrice: number;
+  evaluationAmount: number;
+  profitLoss: number;
+  profitRate: number;
+}
+
+/**
+ * 주문/매매 공통 매수/매도 구분
+ */
+export type DashboardTradeSide = "buy" | "sell" | "unknown";
+
+/**
+ * 대시보드 주문내역 항목
+ */
+export interface DashboardOrderHistoryItem {
+  orderDate: string;
+  orderTime: string;
+  orderNo: string;
+  symbol: string;
+  name: string;
+  side: DashboardTradeSide;
+  orderTypeName: string;
+  orderPrice: number;
+  orderQuantity: number;
+  filledQuantity: number;
+  filledAmount: number;
+  averageFilledPrice: number;
+  remainingQuantity: number;
+  isCanceled: boolean;
+}
+
+/**
+ * 대시보드 매매일지 항목
+ */
+export interface DashboardTradeJournalItem {
+  tradeDate: string;
+  symbol: string;
+  name: string;
+  side: DashboardTradeSide;
+  buyQuantity: number;
+  buyAmount: number;
+  sellQuantity: number;
+  sellAmount: number;
+  realizedProfit: number;
+  realizedRate: number;
+  fee: number;
+  tax: number;
+}
+
+/**
+ * 대시보드 매매일지 요약
+ */
+export interface DashboardTradeJournalSummary {
+  totalRealizedProfit: number;
+  totalRealizedRate: number;
+  totalBuyAmount: number;
+  totalSellAmount: number;
+  totalFee: number;
+  totalTax: number;
+}
+
+/**
+ * 계좌 잔고 API 응답 모델
+ */
+export interface DashboardBalanceResponse {
+  source: "kis";
+  tradingEnv: KisTradingEnv;
+  summary: DashboardBalanceSummary;
+  holdings: DashboardHoldingItem[];
+  fetchedAt: string;
+}
+
+/**
+ * 시장 지수 항목
+ */
+export interface DashboardMarketIndexItem {
+  market: DashboardMarket;
+  code: string;
+  name: string;
+  price: number;
+  change: number;
+  changeRate: number;
+}
+
+/**
+ * 시장 지수 API 응답 모델
+ */
+export interface DashboardIndicesResponse {
+  source: "kis";
+  tradingEnv: KisTradingEnv;
+  items: DashboardMarketIndexItem[];
+  fetchedAt: string;
+}
+
+/**
+ * 주문내역/매매일지 API 응답 모델
+ */
+export interface DashboardActivityResponse {
+  source: "kis";
+  tradingEnv: KisTradingEnv;
+  orders: DashboardOrderHistoryItem[];
+  tradeJournal: DashboardTradeJournalItem[];
+  journalSummary: DashboardTradeJournalSummary;
+  warnings: string[];
+  fetchedAt: string;
+}

features/dashboard/utils/dashboard-format.ts

@@ -0,0 +1,66 @@
+/**
+ * @file features/dashboard/utils/dashboard-format.ts
+ * @description 대시보드 숫자/색상 표현 유틸
+ */
+
+const KRW_FORMATTER = new Intl.NumberFormat("ko-KR");
+const PERCENT_FORMATTER = new Intl.NumberFormat("ko-KR", {
+  minimumFractionDigits: 2,
+  maximumFractionDigits: 2,
+});
+
+/**
+ * 원화 금액을 포맷합니다.
+ * @param value 숫자 값
+ * @returns 쉼표 포맷 문자열
+ * @see features/dashboard/components/StatusHeader.tsx 자산/손익 금액 표시
+ */
+export function formatCurrency(value: number) {
+  return KRW_FORMATTER.format(value);
+}
+
+/**
+ * 퍼센트 값을 포맷합니다.
+ * @param value 숫자 값
+ * @returns 소수점 2자리 퍼센트 문자열
+ * @see features/dashboard/components/StatusHeader.tsx 수익률 표시
+ */
+export function formatPercent(value: number) {
+  return `${PERCENT_FORMATTER.format(value)}%`;
+}
+
+/**
+ * 값의 부호를 포함한 금액 문자열을 만듭니다.
+ * @param value 숫자 값
+ * @returns + 또는 - 부호가 포함된 금액 문자열
+ * @see features/dashboard/components/MarketSummary.tsx 전일 대비 수치 표시
+ */
+export function formatSignedCurrency(value: number) {
+  if (value > 0) return `+${formatCurrency(value)}`;
+  if (value < 0) return `-${formatCurrency(Math.abs(value))}`;
+  return "0";
+}
+
+/**
+ * 값의 부호를 포함한 퍼센트 문자열을 만듭니다.
+ * @param value 숫자 값
+ * @returns + 또는 - 부호가 포함된 퍼센트 문자열
+ * @see features/dashboard/components/MarketSummary.tsx 전일 대비율 표시
+ */
+export function formatSignedPercent(value: number) {
+  if (value > 0) return `+${formatPercent(value)}`;
+  if (value < 0) return `-${formatPercent(Math.abs(value))}`;
+  return "0.00%";
+}
+
+/**
+ * 숫자 값의 상승/하락/보합 텍스트 색상을 반환합니다.
+ * @param value 숫자 값
+ * @returns Tailwind 텍스트 클래스
+ * @see features/dashboard/components/HoldingsList.tsx 수익률/손익 색상 적용
+ */
+export function getChangeToneClass(value: number) {
+  if (value > 0) return "text-red-600 dark:text-red-400";
+  if (value < 0) return "text-blue-600 dark:text-blue-400";
+  return "text-muted-foreground";
+}

features/dashboard/utils/kis-index-realtime.utils.ts

@@ -0,0 +1,62 @@
+export interface KisRealtimeIndexTick {
+  symbol: string; // 업종코드 (0001: KOSPI, 1001: KOSDAQ)
+  price: number; // 현재가
+  change: number; // 전일대비
+  changeRate: number; // 전일대비율
+  sign: string; // 대비부호
+  time: string; // 체결시간
+}
+
+const INDEX_REALTIME_TR_ID = "H0UPCNT0";
+
+const INDEX_FIELD_INDEX = {
+  symbol: 0, // bstp_cls_code
+  time: 1, // bsop_hour
+  price: 2, // prpr_nmix
+  sign: 3, // prdy_vrss_sign
+  change: 4, // bstp_nmix_prdy_vrss
+  accumulatedVolume: 5, // acml_vol
+  accumulatedAmount: 6, // acml_tr_pbmn
+  changeRate: 9, // prdy_ctrt
+} as const;
+
+export function parseKisRealtimeIndexTick(
+  raw: string,
+): KisRealtimeIndexTick | null {
+  // Format: 0|H0UPCNT0|001|0001^123456^...
+  if (!/^([01])\|/.test(raw)) return null;
+
+  const parts = raw.split("|");
+  if (parts.length < 4) return null;
+
+  // Check TR ID
+  if (parts[1] !== INDEX_REALTIME_TR_ID) {
+    return null;
+  }
+
+  const values = parts[3].split("^");
+  if (values.length < 10) return null; // Ensure minimum fields exist
+
+  const symbol = values[INDEX_FIELD_INDEX.symbol];
+  const price = parseFloat(values[INDEX_FIELD_INDEX.price]);
+  const sign = values[INDEX_FIELD_INDEX.sign];
+  const changeRaw = parseFloat(values[INDEX_FIELD_INDEX.change]);
+  const changeRateRaw = parseFloat(values[INDEX_FIELD_INDEX.changeRate]);
+
+  // Adjust sign for negative values if necessary (usually API sends absolute values for change)
+  const isNegative = sign === "5" || sign === "4"; // 5: 하락, 4: 하한
+
+  const change = isNegative ? -Math.abs(changeRaw) : Math.abs(changeRaw);
+  const changeRate = isNegative
+    ? -Math.abs(changeRateRaw)
+    : Math.abs(changeRateRaw);
+
+  return {
+    symbol,
+    time: values[INDEX_FIELD_INDEX.time],
+    price,
+    change,
+    changeRate,
+    sign,
+  };
+}

features/dashboard/utils/kis-stock-realtime.utils.ts

@@ -0,0 +1,69 @@
+export interface KisRealtimeStockTick {
+  symbol: string; // 종목코드
+  time: string; // 체결시간
+  currentPrice: number; // 현재가
+  sign: string; // 전일대비부호 (1:상한, 2:상승, 3:보합, 4:하한, 5:하락)
+  change: number; // 전일대비
+  changeRate: number; // 전일대비율
+  accumulatedVolume: number; // 누적거래량
+}
+
+const STOCK_realtime_TR_ID = "H0STCNT0";
+
+// H0STCNT0 Output format indices based on typical KIS Realtime API
+// Format: MKSC_SHRN_ISCD^STCK_CNTG_HOUR^STCK_PRPR^PRDY_VRSS_SIGN^PRDY_VRSS^PRDY_CTRT^...
+const STOCK_FIELD_INDEX = {
+  symbol: 0, // MKSC_SHRN_ISCD
+  time: 1, // STCK_CNTG_HOUR
+  currentPrice: 2, // STCK_PRPR
+  sign: 3, // PRDY_VRSS_SIGN
+  change: 4, // PRDY_VRSS
+  changeRate: 5, // PRDY_CTRT
+  accumulatedVolume: 12, // ACML_VOL (Usually at index 12 or similar, need to be careful here)
+} as const;
+
+export function parseKisRealtimeStockTick(
+  raw: string,
+): KisRealtimeStockTick | null {
+  // Format: 0|H0STCNT0|001|SYMBOL^TIME^PRICE^SIGN^CHANGE^...
+  if (!/^([01])\|/.test(raw)) return null;
+
+  const parts = raw.split("|");
+  if (parts.length < 4) return null;
+
+  // Check TR ID
+  if (parts[1] !== STOCK_realtime_TR_ID) {
+    return null;
+  }
+
+  const values = parts[3].split("^");
+  if (values.length < 6) return null; // Ensure minimum fields exist
+
+  const symbol = values[STOCK_FIELD_INDEX.symbol];
+  const currentPrice = parseFloat(values[STOCK_FIELD_INDEX.currentPrice]);
+  const sign = values[STOCK_FIELD_INDEX.sign];
+  const changeRaw = parseFloat(values[STOCK_FIELD_INDEX.change]);
+  const changeRateRaw = parseFloat(values[STOCK_FIELD_INDEX.changeRate]);
+
+  // Adjust sign for negative values if necessary
+  const isNegative = sign === "5" || sign === "4"; // 5: 하락, 4: 하한
+
+  const change = isNegative ? -Math.abs(changeRaw) : Math.abs(changeRaw);
+  const changeRate = isNegative
+    ? -Math.abs(changeRateRaw)
+    : Math.abs(changeRateRaw);
+
+  // Validate numeric values
+  if (isNaN(currentPrice)) return null;
+
+  return {
+    symbol,
+    time: values[STOCK_FIELD_INDEX.time],
+    currentPrice,
+    sign,
+    change,
+    changeRate,
+    accumulatedVolume:
+      parseFloat(values[STOCK_FIELD_INDEX.accumulatedVolume]) || 0,
+  };
+}

features/kis-realtime/hooks/useKisWebSocket.ts

@@ -0,0 +1,51 @@
+import { useEffect, useRef } from "react";
+import { useKisWebSocketStore } from "@/features/kis-realtime/stores/kisWebSocketStore";
+
+/**
+ * @file features/kis-realtime/hooks/useKisWebSocket.ts
+ * @description KIS 실시간 데이터를 구독하기 위한 통합 훅입니다.
+ * 컴포넌트 마운트/언마운트 시 자동으로 구독 및 해제를 처리합니다.
+ */
+
+type RealtimeCallback = (data: string) => void;
+
+interface UseKisWebSocketParams {
+  symbol?: string; // 종목코드 (없으면 구독 안 함)
+  trId?: string; // 거래 ID (예: H0STCNT0)
+  onMessage?: RealtimeCallback; // 데이터 수신 콜백
+  enabled?: boolean; // 구독 활성화 여부
+}
+
+export function useKisWebSocket({
+  symbol,
+  trId,
+  onMessage,
+  enabled = true,
+}: UseKisWebSocketParams) {
+  const { subscribe, connect, isConnected } = useKisWebSocketStore();
+  const callbackRef = useRef(onMessage);
+
+  // 콜백 함수가 바뀌어도 재구독하지 않도록 ref 사용
+  useEffect(() => {
+    callbackRef.current = onMessage;
+  }, [onMessage]);
+
+  useEffect(() => {
+    if (!enabled || !symbol || !trId) return;
+
+    // 연결 시도 (이미 연결 중이면 스토어에서 무시됨)
+    connect();
+
+    // 구독 요청
+    const unsubscribe = subscribe(trId, symbol, (data) => {
+      callbackRef.current?.(data);
+    });
+
+    // 언마운트 시 구독 해제
+    return () => {
+      unsubscribe();
+    };
+  }, [symbol, trId, enabled, connect, subscribe]);
+
+  return { isConnected };
+}

features/kis-realtime/stores/kisWebSocketStore.ts

@@ -0,0 +1,386 @@
+import { create } from "zustand";
+import { useKisRuntimeStore } from "@/features/settings/store/use-kis-runtime-store";
+import { buildKisRealtimeMessage } from "@/features/kis-realtime/utils/websocketUtils";
+
+/**
+ * @file features/kis-realtime/stores/kisWebSocketStore.ts
+ * @description KIS 실시간 웹소켓 연결을 전역에서 하나로 관리하는 스토어입니다.
+ * 중복 연결을 방지하고, 여러 컴포넌트에서 동일한 데이터를 구독할 때 효율적으로 처리합니다.
+ */
+
+type RealtimeCallback = (data: string) => void;
+
+interface KisWebSocketState {
+  isConnected: boolean;
+  error: string | null;
+
+  /**
+   * 웹소켓 연결을 수립합니다.
+   * 이미 연결되어 있거나 연결 중이면 무시합니다.
+   */
+  connect: (options?: { forceApprovalRefresh?: boolean }) => Promise<void>;
+
+  /**
+   * 웹소켓 연결을 강제로 재시작합니다.
+   * 필요 시 승인키를 새로 발급받아 재연결합니다.
+   */
+  reconnect: (options?: { refreshApproval?: boolean }) => Promise<void>;
+
+  /**
+   * 웹소켓 연결을 종료합니다.
+   * 모든 구독이 해제됩니다.
+   */
+  disconnect: () => void;
+
+  /**
+   * 특정 TR ID와 종목 코드로 실시간 데이터를 구독합니다.
+   * @param trId 거래 ID (예: H0STCNT0)
+   * @param symbol 종목 코드 (예: 005930)
+   * @param callback 데이터 수신 시 실행할 콜백 함수
+   * @returns 구독 해제 함수 (useEffect cleanup에서 호출하세요)
+   */
+  subscribe: (
+    trId: string,
+    symbol: string,
+    callback: RealtimeCallback,
+  ) => () => void;
+}
+
+// 구독자 목록 관리 (Key: "TR_ID|SYMBOL", Value: Set<Callback>)
+// 스토어 외부 변수로 관리하여 불필요한 리렌더링을 방지합니다.
+const subscribers = new Map<string, Set<RealtimeCallback>>();
+const subscriberCounts = new Map<string, number>(); // 실제 소켓 구독 요청 여부 추적용
+
+let socket: WebSocket | null = null;
+let pingInterval: number | undefined;
+let isConnecting = false; // 연결 진행 중 상태 잠금
+let reconnectRetryTimer: number | undefined;
+let lastAppKeyConflictAt = 0;
+
+export const useKisWebSocketStore = create<KisWebSocketState>((set, get) => ({
+  isConnected: false,
+  error: null,
+
+  connect: async (options) => {
+    const forceApprovalRefresh = options?.forceApprovalRefresh ?? false;
+    const currentSocket = socket;
+
+    if (currentSocket?.readyState === WebSocket.CLOSING) {
+      await waitForSocketClose(currentSocket);
+    }
+
+    // 1. 이미 연결되어 있거나, 연결 시도 중이면 중복 실행 방지
+    if (
+      socket?.readyState === WebSocket.OPEN ||
+      socket?.readyState === WebSocket.CONNECTING ||
+      socket?.readyState === WebSocket.CLOSING ||
+      isConnecting
+    ) {
+      return;
+    }
+
+    try {
+      isConnecting = true;
+      const { getOrFetchWsConnection, clearWsConnectionCache } =
+        useKisRuntimeStore.getState();
+      if (forceApprovalRefresh) {
+        clearWsConnectionCache();
+      }
+      const wsConnection = await getOrFetchWsConnection();
+
+      // 비동기 대기 중에 다른 연결이 성사되었는지 다시 확인
+      if (
+        socket?.readyState === WebSocket.OPEN ||
+        socket?.readyState === WebSocket.CONNECTING
+      ) {
+        isConnecting = false;
+        return;
+      }
+
+      if (!wsConnection) {
+        throw new Error("웹소켓 접속 키 발급에 실패했습니다.");
+      }
+
+      // 소켓 생성
+      // socket 변수에 할당하기 전에 로컬 변수로 제어하여 이벤트 핸들러 클로저 문제 방지
+      const ws = new WebSocket(`${wsConnection.wsUrl}/tryitout`);
+      socket = ws;
+
+      ws.onopen = () => {
+        isConnecting = false;
+        // socket 변수가 다른 인스턴스로 바뀌었을 가능성은 낮지만(락 때문),
+        // 안전을 위해 이벤트 발생 주체인 ws를 사용 또는 현재 socket 확인
+        if (socket !== ws) return;
+
+        set({ isConnected: true, error: null });
+        console.log("[KisWebSocket] Connected");
+
+        // 재연결 시 기존 구독 복구
+        const approvalKey = wsConnection.approvalKey;
+        if (approvalKey) {
+          subscriberCounts.forEach((_, key) => {
+            const [trId, symbol] = key.split("|");
+
+            // OPEN 상태일 때만 전송
+            if (ws.readyState === WebSocket.OPEN) {
+              sendSubscription(ws, approvalKey, trId, symbol, "1"); // 구독
+            }
+          });
+        }
+
+        // PINGPONG (Keep-alive)
+        window.clearInterval(pingInterval);
+        pingInterval = window.setInterval(() => {
+          if (socket?.readyState === WebSocket.OPEN) {
+            socket.send("PINGPONG"); // 일부 환경에서는 PINGPONG 텍스트 전송
+          }
+        }, 100_000); // 100초 주기
+      };
+
+      ws.onclose = () => {
+        if (socket === ws) {
+          isConnecting = false;
+          set({ isConnected: false });
+          console.log("[KisWebSocket] Disconnected");
+          window.clearInterval(pingInterval);
+          socket = null;
+        }
+      };
+
+      ws.onerror = (event) => {
+        if (socket === ws) {
+          isConnecting = false;
+          console.error("[KisWebSocket] Error", event);
+          set({
+            isConnected: false,
+            error: "웹소켓 연결 중 오류가 발생했습니다.",
+          });
+        }
+      };
+
+      ws.onmessage = (event) => {
+        const data = event.data;
+        if (typeof data !== "string") return;
+
+        // PINGPONG 응답 또는 제어 메시지 처리
+        if (data.startsWith("{")) {
+          const control = parseControlMessage(data);
+          if (control?.rt_cd && control.rt_cd !== "0") {
+            const errorMessage = buildControlErrorMessage(control);
+            set({
+              error: errorMessage,
+            });
+
+            // KIS 제어 메시지: ALREADY IN USE appkey
+            // 이전 세션이 닫히기 전에 재연결될 때 간헐적으로 발생합니다.
+            if (control.msg_cd === "OPSP8996") {
+              const now = Date.now();
+              if (now - lastAppKeyConflictAt > 5_000) {
+                lastAppKeyConflictAt = now;
+                window.clearTimeout(reconnectRetryTimer);
+                reconnectRetryTimer = window.setTimeout(() => {
+                  void get().reconnect({ refreshApproval: false });
+                }, 1_200);
+              }
+            }
+          }
+          return;
+        }
+
+        if (data[0] === "0" || data[0] === "1") {
+          // 데이터 포맷: 0|TR_ID|KEY|...
+          const parts = data.split("|");
+          if (parts.length >= 4) {
+            const trId = parts[1];
+            // 데이터 부분 (마지막 부분)에서 종목코드를 찾아야 함.
+            // 하지만 응답에는 종목코드가 명시적으로 없는 경우가 많음 (순서로 추론).
+            // 다행히 KIS API는 요청했던 TR_ID와 수신된 데이터의 호가/체결 데이터를 매핑해야 함.
+            // 여기서는 모든 구독자에게 브로드캐스트하는 방식을 사용 (TR_ID 기준).
+
+            // 더 정확한 라우팅을 위해:
+            // 실시간 체결/호가 데이터에는 종목코드가 포함되어 있음.
+            // 체결(H0STCNT0): data.split("^")[0] (유가증권 단축종목코드)
+            const body = parts[3];
+            const values = body.split("^");
+            const symbol = values[0]; // 대부분 첫 번째 필드가 종목코드
+
+            const key = `${trId}|${symbol}`;
+            const callbacks = subscribers.get(key);
+            callbacks?.forEach((cb) => cb(data));
+          }
+        }
+      };
+    } catch (err) {
+      isConnecting = false;
+      set({
+        isConnected: false,
+        error: err instanceof Error ? err.message : "연결 실패",
+      });
+    }
+  },
+
+  reconnect: async (options) => {
+    const refreshApproval = options?.refreshApproval ?? false;
+    const currentSocket = socket;
+    get().disconnect();
+    if (currentSocket && currentSocket.readyState !== WebSocket.CLOSED) {
+      await waitForSocketClose(currentSocket);
+    }
+    await get().connect({
+      forceApprovalRefresh: refreshApproval,
+    });
+  },
+
+  disconnect: () => {
+    const currentSocket = socket;
+    if (
+      currentSocket &&
+      (currentSocket.readyState === WebSocket.OPEN ||
+        currentSocket.readyState === WebSocket.CONNECTING ||
+        currentSocket.readyState === WebSocket.CLOSING)
+    ) {
+      currentSocket.close();
+    }
+    if (currentSocket?.readyState === WebSocket.CLOSED && socket === currentSocket) {
+      socket = null;
+    }
+    set({ isConnected: false });
+    window.clearInterval(pingInterval);
+    window.clearTimeout(reconnectRetryTimer);
+    isConnecting = false;
+  },
+
+  subscribe: (trId, symbol, callback) => {
+    const key = `${trId}|${symbol}`;
+
+    // 1. 구독자 목록에 추가
+    if (!subscribers.has(key)) {
+      subscribers.set(key, new Set());
+    }
+    subscribers.get(key)!.add(callback);
+
+    // 2. 소켓 서버에 구독 요청 (첫 번째 구독자인 경우)
+    const currentCount = subscriberCounts.get(key) || 0;
+    if (currentCount === 0) {
+      const { wsApprovalKey } = useKisRuntimeStore.getState();
+      if (socket?.readyState === WebSocket.OPEN && wsApprovalKey) {
+        sendSubscription(socket, wsApprovalKey, trId, symbol, "1"); // "1": 등록
+      }
+    }
+    subscriberCounts.set(key, currentCount + 1);
+
+    // **연결이 안 되어 있으면 연결 시도**
+    if (!socket || socket.readyState !== WebSocket.OPEN) {
+      get().connect();
+    }
+
+    // 3. 구독 해제 함수 반환
+    return () => {
+      const callbacks = subscribers.get(key);
+      if (callbacks) {
+        callbacks.delete(callback);
+        if (callbacks.size === 0) {
+          subscribers.delete(key);
+        }
+      }
+
+      const count = subscriberCounts.get(key) || 0;
+      if (count > 0) {
+        subscriberCounts.set(key, count - 1);
+        if (count - 1 === 0) {
+          // 마지막 구독자가 사라지면 소켓 구독 해제
+          const { wsApprovalKey } = useKisRuntimeStore.getState();
+          if (socket?.readyState === WebSocket.OPEN && wsApprovalKey) {
+            sendSubscription(socket, wsApprovalKey, trId, symbol, "2"); // "2": 해제
+          }
+        }
+      }
+    };
+  },
+}));
+
+// 헬퍼: 구독/해제 메시지 전송
+function sendSubscription(
+  ws: WebSocket,
+  appKey: string,
+  trId: string,
+  symbol: string,
+  trType: "1" | "2",
+) {
+  try {
+    const msg = buildKisRealtimeMessage(appKey, symbol, trId, trType);
+    ws.send(JSON.stringify(msg));
+    console.debug(
+      `[KisWebSocket] ${trType === "1" ? "Sub" : "Unsub"} ${trId} ${symbol}`,
+    );
+  } catch (e) {
+    console.warn("[KisWebSocket] Send error", e);
+  }
+}
+
+interface KisWsControlMessage {
+  rt_cd?: string;
+  msg_cd?: string;
+  msg1?: string;
+}
+
+/**
+ * @description 웹소켓 제어 메시지(JSON)를 파싱합니다.
+ * @param rawData 원본 메시지 문자열
+ * @returns 파싱된 제어 메시지 또는 null
+ * @see features/kis-realtime/stores/kisWebSocketStore.ts ws.onmessage
+ */
+function parseControlMessage(rawData: string): KisWsControlMessage | null {
+  try {
+    const parsed = JSON.parse(rawData) as KisWsControlMessage;
+    return parsed && typeof parsed === "object" ? parsed : null;
+  } catch {
+    return null;
+  }
+}
+
+/**
+ * @description KIS 웹소켓 제어 오류를 사용자용 짧은 문구로 변환합니다.
+ * @param message KIS 제어 메시지
+ * @returns 표시용 오류 문자열
+ * @see features/kis-realtime/stores/kisWebSocketStore.ts ws.onmessage
+ */
+function buildControlErrorMessage(message: KisWsControlMessage) {
+  if (message.msg_cd === "OPSP8996") {
+    return "실시간 연결이 다른 세션과 충돌해 재연결을 시도합니다.";
+  }
+  const detail = [message.msg1, message.msg_cd].filter(Boolean).join(" / ");
+  return detail ? `실시간 제어 메시지 오류: ${detail}` : "실시간 제어 메시지 오류";
+}
+
+/**
+ * @description 특정 웹소켓 인스턴스가 완전히 닫힐 때까지 대기합니다.
+ * @param target 대기할 웹소켓 인스턴스
+ * @param timeoutMs 최대 대기 시간(ms)
+ * @returns close/error/timeout 중 먼저 완료되면 resolve
+ * @see features/kis-realtime/stores/kisWebSocketStore.ts connect/reconnect
+ */
+function waitForSocketClose(target: WebSocket, timeoutMs = 2_000) {
+  if (target.readyState === WebSocket.CLOSED) {
+    return Promise.resolve();
+  }
+
+  return new Promise<void>((resolve) => {
+    let settled = false;
+    const onClose = () => finish();
+    const onError = () => finish();
+    const timeoutId = window.setTimeout(() => finish(), timeoutMs);
+
+    const finish = () => {
+      if (settled) return;
+      settled = true;
+      window.clearTimeout(timeoutId);
+      target.removeEventListener("close", onClose);
+      target.removeEventListener("error", onError);
+      resolve();
+    };
+
+    target.addEventListener("close", onClose);
+    target.addEventListener("error", onError);
+  });
+}

features/kis-realtime/utils/websocketUtils.ts

@@ -0,0 +1,29 @@
+/**
+ * @file features/kis-realtime/utils/websocketUtils.ts
+ * @description KIS 웹소켓 메시지 생성 및 파싱 관련 유틸리티 함수 모음
+ */
+
+/**
+ * @description KIS 실시간 구독/해제 소켓 메시지를 생성합니다.
+ */
+export function buildKisRealtimeMessage(
+  approvalKey: string,
+  symbol: string,
+  trId: string,
+  trType: "1" | "2",
+) {
+  return {
+    header: {
+      approval_key: approvalKey,
+      custtype: "P",
+      tr_type: trType,
+      "content-type": "utf-8",
+    },
+    body: {
+      input: {
+        tr_id: trId,
+        tr_key: symbol,
+      },
+    },
+  };
+}

features/layout/components/Logo.tsx

@@ -0,0 +1,108 @@
+import { cn } from "@/lib/utils";
+
+interface LogoProps {
+  className?: string;
+  variant?: "symbol" | "full";
+  /** 배경과 섞이는 모드 (홈 화면 등). 로고가 흰색으로 표시됩니다. */
+  blendWithBackground?: boolean;
+}
+
+export function Logo({
+  className,
+  variant = "full",
+  blendWithBackground = false,
+}: LogoProps) {
+  // 색상 클래스 정의
+  const mainColorClass = blendWithBackground
+    ? "fill-brand-500 stroke-brand-500" // 배경 혼합 모드에서도 심볼은 브랜드 컬러 유지
+    : "fill-brand-600 stroke-brand-600 dark:fill-brand-500 dark:stroke-brand-500";
+
+  return (
+    <div
+      className={cn("relative flex items-center gap-2 select-none", className)}
+      aria-label="Jurini Logo"
+    >
+      <svg
+        viewBox="0 0 100 100"
+        xmlns="http://www.w3.org/2000/svg"
+        className={cn(
+          "shrink-0",
+          variant === "full" ? "h-10 w-10" : "h-full w-full",
+        )}
+      >
+        <defs>
+          {/* Mask for the cutout effect around the arrow */}
+          <mask id="arrow-cutout">
+            <rect width="100%" height="100%" fill="white" />
+            <path
+              d="M10 75 C 35 45, 55 85, 90 25"
+              fill="none"
+              stroke="black"
+              strokeWidth="12"
+              strokeLinecap="round"
+            />
+            {/* Arrow Head Cutout */}
+            <path
+              d="M90 25 L 78 32 L 85 42 Z"
+              fill="black"
+              stroke="black"
+              strokeWidth="6"
+              strokeLinejoin="round"
+              transform="rotate(-15 90 25)"
+            />
+          </mask>
+        </defs>
+
+        {/* ========== BARS (Masked) ========== */}
+        <g
+          mask="url(#arrow-cutout)"
+          className={
+            blendWithBackground
+              ? "fill-brand-500" // 배경 혼합 모드에서도 브랜드 컬러 사용
+              : "fill-brand-600 dark:fill-brand-500"
+          }
+        >
+          {/* Bar 1 (Left, Short) */}
+          <rect x="15" y="45" width="18" height="40" rx="4" />
+          {/* Bar 2 (Middle, Medium) */}
+          <rect x="41" y="30" width="18" height="55" rx="4" />
+          {/* Bar 3 (Right, Tall) */}
+          <rect x="67" y="10" width="18" height="75" rx="4" />
+        </g>
+
+        {/* ========== ARROW (Foreground) ========== */}
+        <g className={mainColorClass}>
+          {/* Arrow Path */}
+          <path
+            d="M10 75 C 35 45, 55 85, 90 25"
+            fill="none"
+            strokeWidth="7"
+            strokeLinecap="round"
+          />
+          {/* Arrow Head */}
+          <path
+            d="M90 25 L 78 32 L 85 42 Z"
+            fill="currentColor"
+            stroke="none"
+            transform="rotate(-15 90 25)"
+          />
+        </g>
+      </svg>
+
+      {/* ========== TEXT (Optional) ========== */}
+      {variant === "full" && (
+        <span
+          className={cn(
+            "font-bold tracking-tight",
+            blendWithBackground
+              ? "text-white opacity-95"
+              : "text-brand-900 dark:text-brand-50",
+          )}
+          style={{ fontSize: "1.35rem", fontFamily: "'Inter', sans-serif" }}
+        >
+          JOORIN-E
+        </span>
+      )}
+    </div>
+  );
+}

features/layout/components/header.tsx

@@ -1,11 +1,6 @@
-/**
+/**
  * @file features/layout/components/header.tsx
- * @description 애플리케이션 최상단 헤더 컴포넌트 (네비게이션, 테마, 유저 메뉴)
- * @remarks
- * - [레이어] Components/UI/Layout
- * - [사용자 행동] 홈 이동, 테마 변경, 로그인/회원가입 이동, 대시보드 이동
- * - [데이터 흐름] User Prop -> UI Conditional Rendering
- * - [연관 파일] layout.tsx, session-timer.tsx, user-menu.tsx
+ * @description 애플리케이션 상단 헤더 컴포넌트
  */
 
 import Link from "next/link";
@@ -14,74 +9,129 @@ import { AUTH_ROUTES } from "@/features/auth/constants";
 import { UserMenu } from "@/features/layout/components/user-menu";
 import { ThemeToggle } from "@/components/theme-toggle";
 import { Button } from "@/components/ui/button";
-
 import { SessionTimer } from "@/features/auth/components/session-timer";
+import { cn } from "@/lib/utils";
+import { Logo } from "@/features/layout/components/Logo";
 
 interface HeaderProps {
-  /** 현재 로그인한 사용자 정보 (없으면 null) */
+  /** 현재 로그인 사용자 정보(null 가능) */
   user: User | null;
-  /** 대시보드 링크 표시 여부 */
+  /** 대시보드 링크 버튼 노출 여부 */
   showDashboardLink?: boolean;
+  /** 홈 랜딩에서 배경과 자연스럽게 섞이는 헤더 모드 */
+  blendWithBackground?: boolean;
 }
 
 /**
  * 글로벌 헤더 컴포넌트
  * @param user Supabase User 객체
- * @param showDashboardLink 대시보드 바로가기 버튼 노출 여부
+ * @param showDashboardLink 대시보드 버튼 노출 여부
+ * @param blendWithBackground 홈 랜딩 전용 반투명 모드
  * @returns Header JSX
- * @see layout.tsx - RootLayout에서 데이터 주입하여 호출
+ * @see app/(home)/page.tsx 홈 랜딩에서 blendWithBackground=true로 호출
  */
-export function Header({ user, showDashboardLink = false }: HeaderProps) {
+export function Header({
+  user,
+  showDashboardLink = false,
+  blendWithBackground = false,
+}: HeaderProps) {
   return (
-    <header className="fixed top-0 z-40 w-full border-b border-border/40 bg-background/80 backdrop-blur-xl supports-backdrop-filter:bg-background/60">
-      <div className="flex h-16 w-full items-center justify-between px-4 md:px-6">
-        {/* ========== 좌측: 로고 영역 ========== */}
-        <Link href={AUTH_ROUTES.HOME} className="flex items-center gap-2 group">
-          <div className="flex h-9 w-9 items-center justify-center rounded-xl bg-primary/10 transition-transform duration-200 group-hover:scale-110">
-            <div className="h-5 w-5 rounded-lg bg-linear-to-br from-brand-500 to-brand-700" />
-          </div>
-          <span className="text-xl font-bold tracking-tight text-foreground transition-colors group-hover:text-primary">
-            AutoTrade
-          </span>
+    <header
+      className={cn(
+        "fixed inset-x-0 top-0 z-50 w-full",
+        blendWithBackground
+          ? "text-white"
+          : "border-b border-border/40 bg-background/80 backdrop-blur-xl supports-backdrop-filter:bg-background/60",
+      )}
+    >
+      {blendWithBackground && (
+        <div
+          aria-hidden="true"
+          className="pointer-events-none absolute inset-x-0 top-0 h-24 bg-linear-to-b from-black/70 via-black/35 to-transparent"
+        />
+      )}
+
+      <div
+        className={cn(
+          "relative z-10 flex h-16 w-full items-center justify-between px-4 md:px-6",
+          blendWithBackground
+            ? "bg-black/30 backdrop-blur-xl supports-backdrop-filter:bg-black/20"
+            : "",
+        )}
+      >
+        {/* ========== LEFT: LOGO SECTION ========== */}
+        {/* ========== LEFT: LOGO SECTION ========== */}
+        <Link href={AUTH_ROUTES.HOME} className="group flex items-center gap-2">
+          <Logo
+            variant="full"
+            className="h-10 text-xl transition-transform duration-200 group-hover:scale-105"
+            blendWithBackground={blendWithBackground}
+          />
         </Link>
 
-        {/* ========== 우측: 액션 버튼 영역 ========== */}
-        <div className="flex items-center gap-4">
-          {/* 테마 토글 */}
-          <ThemeToggle />
+        {/* ========== RIGHT: ACTION SECTION ========== */}
+        <div
+          className={cn(
+            "flex items-center gap-2 sm:gap-3",
+            blendWithBackground ? "text-white" : "",
+          )}
+        >
+          <ThemeToggle
+            className={cn(
+              blendWithBackground
+                ? "rounded-full border border-white/40 bg-black/50 text-white! backdrop-blur-md hover:bg-black/65 focus-visible:ring-white/80"
+                : "",
+            )}
+            iconClassName={blendWithBackground ? "text-white!" : undefined}
+          />
 
           {user ? (
-            // [Case 1] 로그인 상태
             <>
-              {/* 세션 타임아웃 타이머 */}
-              <SessionTimer />
+              <SessionTimer blendWithBackground={blendWithBackground} />
 
               {showDashboardLink && (
                 <Button
                   asChild
                   variant="ghost"
                   size="sm"
-                  className="hidden sm:inline-flex"
+                  className={cn(
+                    "hidden font-medium sm:inline-flex",
+                    blendWithBackground
+                      ? "rounded-full border border-white/40 bg-black/50 text-white! backdrop-blur-md [text-shadow:0_1px_8px_rgba(0,0,0,0.45)] hover:bg-black/65 hover:text-white!"
+                      : "",
+                  )}
                 >
                   <Link href={AUTH_ROUTES.DASHBOARD}>대시보드</Link>
                 </Button>
               )}
 
-              {/* 사용자 드롭다운 메뉴 */}
-              <UserMenu user={user} />
+              <UserMenu user={user} blendWithBackground={blendWithBackground} />
             </>
           ) : (
-            // [Case 2] 비로그인 상태
             <div className="flex items-center gap-2">
               <Button
                 asChild
                 variant="ghost"
                 size="sm"
-                className="hidden sm:inline-flex"
+                className={cn(
+                  "hidden sm:inline-flex",
+                  blendWithBackground
+                    ? "rounded-full border border-white/40 bg-black/50 text-white! backdrop-blur-md hover:bg-black/65 hover:text-white!"
+                    : "",
+                )}
               >
                 <Link href={AUTH_ROUTES.LOGIN}>로그인</Link>
               </Button>
-              <Button asChild size="sm" className="rounded-full px-6">
+              <Button
+                asChild
+                size="sm"
+                className={cn(
+                  "rounded-full px-6",
+                  blendWithBackground
+                    ? "bg-brand-500/90 text-white shadow-lg shadow-brand-700/40 hover:bg-brand-400"
+                    : "",
+                )}
+              >
                 <Link href={AUTH_ROUTES.SIGNUP}>시작하기</Link>
               </Button>
             </div>

features/layout/components/sidebar.tsx

@@ -1,51 +1,97 @@
 "use client";
 
 import { cn } from "@/lib/utils";
-import { BarChart2, Home, Settings, User, Wallet } from "lucide-react";
+import {
+  BarChart2,
+  ChevronLeft,
+  Home,
+  Settings,
+  User,
+  Wallet,
+} from "lucide-react";
 import Link from "next/link";
 import { usePathname } from "next/navigation";
+import { useState } from "react";
 import { MenuItem } from "../types";
 
 const MENU_ITEMS: MenuItem[] = [
   {
     title: "대시보드",
-    href: "/",
+    href: "/dashboard",
     icon: Home,
     variant: "default",
     matchExact: true,
+    showInBottomNav: true,
   },
   {
     title: "자동매매",
     href: "/trade",
     icon: BarChart2,
     variant: "ghost",
+    badge: "LIVE",
+    showInBottomNav: true,
   },
   {
     title: "자산현황",
     href: "/assets",
     icon: Wallet,
     variant: "ghost",
+    showInBottomNav: true,
   },
   {
     title: "프로필",
     href: "/profile",
     icon: User,
     variant: "ghost",
+    showInBottomNav: false,
   },
   {
     title: "설정",
     href: "/settings",
     icon: Settings,
     variant: "ghost",
+    showInBottomNav: true,
   },
 ];
 
+/**
+ * @description 메인 좌측 사이드바(데스크탑): 기본 축소 상태에서 hover/focus 시 확장됩니다.
+ * @see features/layout/components/sidebar.tsx MENU_ITEMS 한 곳에서 메뉴/배지/모바일 탭 구성을 함께 관리합니다.
+ */
 export function Sidebar() {
   const pathname = usePathname();
+  const [isExpanded, setIsExpanded] = useState(false);
 
   return (
-    <aside className="fixed left-0 top-14 z-30 hidden h-[calc(100vh-3.5rem)] w-full shrink-0 overflow-y-auto border-r border-zinc-200 bg-white py-6 pl-2 pr-6 dark:border-zinc-800 dark:bg-black md:sticky md:block md:w-64 lg:w-72">
-      <div className="flex flex-col space-y-1">
+    <aside
+      className={cn(
+        "relative hidden h-[calc(100vh-4rem)] shrink-0 overflow-x-visible overflow-y-auto border-r border-brand-100 bg-white px-2 py-5 transition-[width] duration-200 dark:border-brand-900/40 dark:bg-background md:sticky md:top-16 md:block",
+        isExpanded ? "md:w-64" : "md:w-[74px]",
+      )}
+    >
+      <button
+        type="button"
+        onClick={() => setIsExpanded((prev) => !prev)}
+        aria-label={isExpanded ? "Collapse sidebar" : "Expand sidebar"}
+        className={cn(
+          "absolute -right-3 top-20 z-50 hidden h-8 w-8 items-center justify-center rounded-full",
+          "border border-zinc-200/50 bg-white/80 shadow-lg backdrop-blur-md transition-all duration-300",
+          "hover:scale-110 hover:bg-white active:scale-95",
+          "dark:border-zinc-800/50 dark:bg-zinc-900/80 dark:hover:bg-zinc-900",
+          "md:flex",
+        )}
+      >
+        <ChevronLeft
+          className={cn(
+            "h-4 w-4 text-zinc-600 transition-transform duration-300 dark:text-zinc-300",
+            isExpanded ? "rotate-0" : "rotate-180",
+          )}
+        />
+      </button>
+
+      <div className="h-1.5" />
+      {/* ========== SIDEBAR ITEMS ========== */}
+      <div className="flex flex-col space-y-1.5">
         {MENU_ITEMS.map((item) => {
           const isActive = item.matchExact
             ? pathname === item.href
@@ -55,22 +101,53 @@ export function Sidebar() {
             <Link
               key={item.href}
               href={item.href}
+              title={item.title}
               className={cn(
-                "group flex items-center rounded-md px-3 py-2 text-sm font-medium hover:bg-zinc-100 hover:text-zinc-900 dark:hover:bg-zinc-800 dark:hover:text-zinc-50 transition-colors",
+                "group/item relative flex items-center rounded-xl px-3 py-2.5 text-sm transition-colors",
+                "hover:bg-brand-50 hover:text-brand-800 dark:hover:bg-brand-900/30 dark:hover:text-brand-100",
                 isActive
-                  ? "bg-zinc-100 text-zinc-900 dark:bg-zinc-800 dark:text-zinc-50"
-                  : "text-zinc-500 dark:text-zinc-400",
+                  ? "bg-brand-100 text-brand-800 shadow-sm dark:bg-brand-900/40 dark:text-brand-100"
+                  : "text-muted-foreground dark:text-brand-200/80",
               )}
             >
-              <item.icon
+              {/* ========== ACTIVE BAR ========== */}
+              <span
                 className={cn(
-                  "mr-3 h-5 w-5 shrink-0 transition-colors",
-                  isActive
-                    ? "text-zinc-900 dark:text-zinc-50"
-                    : "text-zinc-400 group-hover:text-zinc-900 dark:text-zinc-500 dark:group-hover:text-zinc-50",
+                  "absolute left-0 top-1/2 h-5 -translate-y-1/2 rounded-r-full transition-all",
+                  isActive ? "w-1.5 bg-brand-500" : "w-0",
                 )}
               />
-              {item.title}
+
+              {/* ========== ICON + DOT BADGE ========== */}
+              <item.icon
+                className={cn(
+                  "h-5 w-5 shrink-0 transition-colors",
+                  isActive
+                    ? "text-brand-700 dark:text-brand-200"
+                    : "text-zinc-400 group-hover/item:text-brand-700 dark:text-brand-300/70 dark:group-hover/item:text-brand-200",
+                )}
+              />
+
+              {item.badge && !isExpanded && (
+                <span className="absolute left-7 top-2 h-2 w-2 rounded-full bg-brand-500" />
+              )}
+
+              {/* ========== LABEL (EXPAND ON TOGGLE) ========== */}
+              <span
+                className={cn(
+                  "ml-3 flex min-w-0 items-center gap-1.5 overflow-hidden whitespace-nowrap transition-all duration-200",
+                  isExpanded
+                    ? "max-w-[180px] opacity-100"
+                    : "max-w-0 opacity-0",
+                )}
+              >
+                <span className="truncate font-medium">{item.title}</span>
+                {item.badge && (
+                  <span className="shrink-0 rounded-full bg-brand-100 px-1.5 py-0.5 text-[10px] font-semibold text-brand-700">
+                    {item.badge}
+                  </span>
+                )}
+              </span>
             </Link>
           );
         })}
@@ -78,3 +155,58 @@ export function Sidebar() {
     </aside>
   );
 }
+
+/**
+ * @description 모바일 하단 빠른 탭 네비게이션.
+ * @see features/layout/components/sidebar.tsx Sidebar와 같은 MENU_ITEMS를 공유해 중복 정의를 줄입니다.
+ */
+export function MobileBottomNav() {
+  const pathname = usePathname();
+  const bottomItems = MENU_ITEMS.filter(
+    (item) => item.showInBottomNav !== false,
+  );
+
+  return (
+    <nav
+      aria-label="모바일 빠른 메뉴"
+      className="fixed inset-x-0 bottom-0 z-40 border-t border-brand-100 bg-white/95 backdrop-blur-sm supports-backdrop-filter:bg-white/80 dark:border-brand-900/40 dark:bg-background/95 dark:supports-backdrop-filter:bg-background/80 md:hidden"
+    >
+      {/* ========== BOTTOM NAV ITEMS ========== */}
+      <div
+        className={cn(
+          "grid",
+          bottomItems.length === 4 ? "grid-cols-4" : "grid-cols-5",
+        )}
+      >
+        {bottomItems.map((item) => {
+          const isActive = item.matchExact
+            ? pathname === item.href
+            : pathname.startsWith(item.href);
+
+          return (
+            <Link
+              key={`bottom-${item.href}`}
+              href={item.href}
+              className={cn(
+                "flex min-h-16 flex-col items-center justify-center gap-1.5 text-[11px] font-medium transition-colors",
+                isActive
+                  ? "text-brand-700"
+                  : "text-muted-foreground hover:text-brand-700 dark:text-brand-200/80 dark:hover:text-brand-200",
+              )}
+            >
+              <span className="relative">
+                <item.icon
+                  className={cn("h-4 w-4", isActive && "text-brand-600")}
+                />
+                {item.badge && (
+                  <span className="absolute -right-1 -top-1 h-2 w-2 rounded-full bg-brand-500" />
+                )}
+              </span>
+              <span className="leading-none">{item.title}</span>
+            </Link>
+          );
+        })}
+      </div>
+    </nav>
+  );
+}

features/layout/components/user-menu.tsx

@@ -1,14 +1,13 @@
-/**
+/**
  * @file features/layout/components/user-menu.tsx
  * @description 사용자 프로필 드롭다운 메뉴 컴포넌트
- * @remarks
- * - [레이어] Components/UI
- * - [사용자 행동] Avatar 클릭 -> 드롭다운 오픈 -> 프로필/설정 이동 또는 로그아웃
- * - [연관 파일] header.tsx, features/auth/actions.ts (로그아웃)
  */
 
 "use client";
 
+import { User } from "@supabase/supabase-js";
+import { LogOut, Settings, User as UserIcon } from "lucide-react";
+import { useRouter } from "next/navigation";
 import { signout } from "@/features/auth/actions";
 import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
 import {
@@ -19,61 +18,98 @@ import {
   DropdownMenuSeparator,
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
-import { User } from "@supabase/supabase-js";
-import { LogOut, Settings, User as UserIcon } from "lucide-react";
-import { useRouter } from "next/navigation";
+import { cn } from "@/lib/utils";
+
+const SESSION_RELATED_STORAGE_KEYS = [
+  "session-storage",
+  "auth-storage",
+  "autotrade-kis-runtime-store",
+] as const;
 
 interface UserMenuProps {
   /** Supabase User 객체 */
   user: User | null;
+  /** 홈 랜딩의 shader 배경 위에서 대비를 높이는 모드 */
+  blendWithBackground?: boolean;
 }
 
 /**
- * 사용자 메뉴/프로필 컴포넌트 (로그인 시 헤더 노출)
+ * 사용자 메뉴/프로필 컴포넌트
  * @param user 로그인한 사용자 정보
- * @returns Avatar 버튼 및 드롭다운 메뉴
+ * @param blendWithBackground shader 배경 위 가독성 모드
+ * @returns Avatar 버튼 + 드롭다운 메뉴
+ * @see features/layout/components/header.tsx 헤더 우측 액션 영역에서 호출
  */
-export function UserMenu({ user }: UserMenuProps) {
+export function UserMenu({ user, blendWithBackground = false }: UserMenuProps) {
   const router = useRouter();
 
   if (!user) return null;
 
+  /**
+   * @description 로그아웃 제출 직전에 세션 관련 로컬 스토리지를 정리합니다.
+   * @see features/auth/actions.ts signout - 서버 세션 종료를 담당합니다.
+   */
+  const clearSessionRelatedStorage = () => {
+    if (typeof window === "undefined") return;
+
+    for (const key of SESSION_RELATED_STORAGE_KEYS) {
+      window.localStorage.removeItem(key);
+    }
+  };
+
   return (
     <DropdownMenu modal={false}>
       <DropdownMenuTrigger asChild>
-        <button className="flex items-center gap-2 outline-none">
-          <Avatar className="h-8 w-8 transition-opacity hover:opacity-80">
+        <button
+          className={cn(
+            "flex items-center gap-2 rounded-full outline-none transition-colors",
+            blendWithBackground
+              ? "ring-1 ring-white/30 hover:bg-black/30 focus-visible:ring-2 focus-visible:ring-white/70"
+              : "",
+          )}
+          aria-label="사용자 메뉴 열기"
+        >
+          <Avatar className="h-8 w-8 transition-opacity hover:opacity-90">
             <AvatarImage src={user.user_metadata?.avatar_url} />
-            <AvatarFallback className="bg-linear-to-br from-brand-500 to-brand-700 text-white text-xs font-bold">
+            <AvatarFallback
+              className={cn(
+                "text-xs font-bold text-white",
+                blendWithBackground
+                  ? "bg-brand-500/90 [text-shadow:0_1px_8px_rgba(0,0,0,0.45)]"
+                  : "bg-linear-to-br from-brand-500 to-brand-700",
+              )}
+            >
               {user.email?.charAt(0).toUpperCase()}
             </AvatarFallback>
           </Avatar>
         </button>
       </DropdownMenuTrigger>
+
       <DropdownMenuContent align="end" className="w-56">
         <DropdownMenuLabel className="font-normal">
           <div className="flex flex-col space-y-1">
             <p className="text-sm font-medium leading-none">
-              {user.user_metadata?.full_name ||
-                user.user_metadata?.name ||
-                "사용자"}
-            </p>
-            <p className="text-xs leading-none text-muted-foreground">
-              {user.email}
+              {user.user_metadata?.full_name || user.user_metadata?.name || "사용자"}
             </p>
+            <p className="text-xs leading-none text-muted-foreground">{user.email}</p>
           </div>
         </DropdownMenuLabel>
+
         <DropdownMenuSeparator />
+
         <DropdownMenuItem onClick={() => router.push("/profile")}>
           <UserIcon className="mr-2 h-4 w-4" />
           <span>프로필</span>
         </DropdownMenuItem>
+
         <DropdownMenuItem onClick={() => router.push("/settings")}>
           <Settings className="mr-2 h-4 w-4" />
           <span>설정</span>
         </DropdownMenuItem>
+
         <DropdownMenuSeparator />
-        <form action={signout}>
+
+        <form action={signout} onSubmit={clearSessionRelatedStorage}>
           <DropdownMenuItem asChild>
             <button className="w-full text-red-600 dark:text-red-400">
               <LogOut className="mr-2 h-4 w-4" />

features/layout/types/index.ts

@@ -6,4 +6,6 @@ export interface MenuItem {
   icon: LucideIcon;
   variant: "default" | "ghost";
   matchExact?: boolean;
+  badge?: string;
+  showInBottomNav?: boolean;
 }

features/settings/apis/kis-auth.api.ts

@@ -0,0 +1,97 @@
+import type { KisRuntimeCredentials } from "@/features/settings/store/use-kis-runtime-store";
+import type {
+  DashboardKisProfileValidateResponse,
+  DashboardKisRevokeResponse,
+  DashboardKisValidateResponse,
+  DashboardKisWsApprovalResponse,
+} from "@/features/trade/types/trade.types";
+
+interface KisApiBaseResponse {
+  ok: boolean;
+  message: string;
+}
+
+async function postKisAuthApi<T extends KisApiBaseResponse>(
+  endpoint: string,
+  credentials: KisRuntimeCredentials,
+  fallbackErrorMessage: string,
+): Promise<T> {
+  const response = await fetch(endpoint, {
+    method: "POST",
+    headers: {
+      "content-type": "application/json",
+    },
+    body: JSON.stringify(credentials),
+    cache: "no-store",
+  });
+
+  const payload = (await response.json()) as T;
+
+  if (!response.ok || !payload.ok) {
+    throw new Error(payload.message || fallbackErrorMessage);
+  }
+
+  return payload;
+}
+
+/**
+ * @description KIS API 키를 검증합니다.
+ * @see app/api/kis/validate/route.ts
+ */
+export async function validateKisCredentials(
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardKisValidateResponse> {
+  return postKisAuthApi<DashboardKisValidateResponse>(
+    "/api/kis/validate",
+    credentials,
+    "앱키 검증에 실패했습니다.",
+  );
+}
+
+/**
+ * @description KIS 액세스 토큰을 폐기합니다.
+ * @see app/api/kis/revoke/route.ts
+ */
+export async function revokeKisCredentials(
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardKisRevokeResponse> {
+  return postKisAuthApi<DashboardKisRevokeResponse>(
+    "/api/kis/revoke",
+    credentials,
+    "API 토큰 폐기에 실패했습니다.",
+  );
+}
+
+/**
+ * @description 웹소켓 승인키와 WS URL을 조회합니다.
+ * @see app/api/kis/ws/approval/route.ts
+ */
+export async function fetchKisWebSocketApproval(
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardKisWsApprovalResponse> {
+  const payload = await postKisAuthApi<DashboardKisWsApprovalResponse>(
+    "/api/kis/ws/approval",
+    credentials,
+    "웹소켓 승인키 발급에 실패했습니다.",
+  );
+
+  if (!payload.approvalKey || !payload.wsUrl) {
+    throw new Error(payload.message || "웹소켓 연결 정보가 누락되었습니다.");
+  }
+
+  return payload;
+}
+
+/**
+ * @description 계좌번호를 검증합니다.
+ * @see app/api/kis/validate-profile/route.ts
+ */
+export async function validateKisProfile(
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardKisProfileValidateResponse> {
+  return postKisAuthApi<DashboardKisProfileValidateResponse>(
+    "/api/kis/validate-profile",
+    credentials,
+    "계좌 검증에 실패했습니다.",
+  );
+}

features/settings/components/KisAuthForm.tsx

@@ -0,0 +1,310 @@
+import { useState, useTransition } from "react";
+import { useShallow } from "zustand/react/shallow";
+import { cn } from "@/lib/utils";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { useKisRuntimeStore } from "@/features/settings/store/use-kis-runtime-store";
+import {
+  revokeKisCredentials,
+  validateKisCredentials,
+} from "@/features/settings/apis/kis-auth.api";
+import {
+  KeyRound,
+  ShieldCheck,
+  CheckCircle2,
+  XCircle,
+  Lock,
+  Link2,
+  Unlink2,
+  Activity,
+  Zap,
+  KeySquare,
+} from "lucide-react";
+import type { LucideIcon } from "lucide-react";
+import { InlineSpinner } from "@/components/ui/loading-spinner";
+import { SettingsCard } from "./SettingsCard";
+
+/**
+ * @description 한국투자증권 앱키/앱시크릿키 인증 폼입니다.
+ * @remarks UI 흐름: /settings -> 앱키/앱시크릿키 입력 -> 연결 확인 버튼 -> /api/kis/validate -> 연결 상태 반영
+ * @see app/api/kis/validate/route.ts 앱키 검증 API
+ * @see features/settings/store/use-kis-runtime-store.ts 인증 상태 저장소
+ */
+export function KisAuthForm() {
+  const {
+    kisTradingEnvInput,
+    kisAppKeyInput,
+    kisAppSecretInput,
+    verifiedAccountNo,
+    verifiedCredentials,
+    isKisVerified,
+    setKisTradingEnvInput,
+    setKisAppKeyInput,
+    setKisAppSecretInput,
+    setVerifiedKisSession,
+    invalidateKisVerification,
+    clearKisRuntimeSession,
+  } = useKisRuntimeStore(
+    useShallow((state) => ({
+      kisTradingEnvInput: state.kisTradingEnvInput,
+      kisAppKeyInput: state.kisAppKeyInput,
+      kisAppSecretInput: state.kisAppSecretInput,
+      verifiedAccountNo: state.verifiedAccountNo,
+      verifiedCredentials: state.verifiedCredentials,
+      isKisVerified: state.isKisVerified,
+      setKisTradingEnvInput: state.setKisTradingEnvInput,
+      setKisAppKeyInput: state.setKisAppKeyInput,
+      setKisAppSecretInput: state.setKisAppSecretInput,
+      setVerifiedKisSession: state.setVerifiedKisSession,
+      invalidateKisVerification: state.invalidateKisVerification,
+      clearKisRuntimeSession: state.clearKisRuntimeSession,
+    })),
+  );
+
+  const [statusMessage, setStatusMessage] = useState<string | null>(null);
+  const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [isValidating, startValidateTransition] = useTransition();
+  const [isRevoking, startRevokeTransition] = useTransition();
+
+  function handleValidate() {
+    startValidateTransition(async () => {
+      try {
+        setErrorMessage(null);
+        setStatusMessage(null);
+
+        const appKey = kisAppKeyInput.trim();
+        const appSecret = kisAppSecretInput.trim();
+        if (!appKey || !appSecret) {
+          throw new Error("앱키와 앱시크릿키를 모두 입력해 주세요.");
+        }
+
+        const credentials = {
+          appKey,
+          appSecret,
+          tradingEnv: kisTradingEnvInput,
+          accountNo: verifiedAccountNo ?? "",
+        };
+
+        const result = await validateKisCredentials(credentials);
+        setVerifiedKisSession(credentials, result.tradingEnv);
+        setStatusMessage(
+          `${result.message} (${result.tradingEnv === "real" ? "실전" : "모의"})`,
+        );
+      } catch (err) {
+        invalidateKisVerification();
+        setErrorMessage(
+          err instanceof Error
+            ? err.message
+            : "앱키 확인 중 오류가 발생했습니다.",
+        );
+      }
+    });
+  }
+
+  function handleRevoke() {
+    if (!verifiedCredentials) return;
+
+    startRevokeTransition(async () => {
+      try {
+        setErrorMessage(null);
+        setStatusMessage(null);
+        const result = await revokeKisCredentials(verifiedCredentials);
+        clearKisRuntimeSession(result.tradingEnv);
+        setStatusMessage(
+          `${result.message} (${result.tradingEnv === "real" ? "실전" : "모의"})`,
+        );
+      } catch (err) {
+        setErrorMessage(
+          err instanceof Error
+            ? err.message
+            : "연결 해제 중 오류가 발생했습니다.",
+        );
+      }
+    });
+  }
+
+  return (
+    <SettingsCard
+      icon={KeyRound}
+      title="한국투자증권 앱키 연결"
+      description="Open API에서 발급받은 앱키와 앱시크릿키를 입력해 연결을 완료하세요."
+      badge={
+        isKisVerified ? (
+          <span className="inline-flex shrink-0 items-center gap-1 whitespace-nowrap rounded-full bg-green-50 px-2 py-0.5 text-[11px] font-medium text-green-700 ring-1 ring-green-600/20 dark:bg-green-500/10 dark:text-green-400 dark:ring-green-500/30">
+            <CheckCircle2 className="h-3 w-3" />
+            연결됨
+          </span>
+        ) : undefined
+      }
+      footer={{
+        actions: (
+          <div className="flex flex-wrap gap-2">
+            <Button
+              onClick={handleValidate}
+              disabled={
+                isValidating ||
+                !kisAppKeyInput.trim() ||
+                !kisAppSecretInput.trim()
+              }
+              className="h-9 rounded-lg bg-brand-600 px-4 text-xs font-semibold text-white shadow-sm transition-all hover:bg-brand-700 hover:shadow disabled:opacity-50 disabled:shadow-none dark:bg-brand-600 dark:hover:bg-brand-500"
+            >
+              {isValidating ? (
+                <span className="flex items-center gap-1.5">
+                  <InlineSpinner className="h-3 w-3 text-white" />
+                  검증 중
+                </span>
+              ) : (
+                <span className="flex items-center gap-1.5">
+                  <Link2 className="h-3.5 w-3.5 text-brand-100" />
+                  앱키 연결 확인
+                </span>
+              )}
+            </Button>
+
+            {isKisVerified && (
+              <Button
+                variant="outline"
+                onClick={handleRevoke}
+                disabled={isRevoking}
+                className="h-9 rounded-lg border-zinc-200 bg-white px-4 text-xs text-zinc-600 hover:bg-zinc-50 hover:text-zinc-900 dark:border-zinc-700 dark:bg-zinc-800 dark:text-zinc-400 dark:hover:text-zinc-200"
+              >
+                {isRevoking ? (
+                  "해제 중"
+                ) : (
+                  <span className="flex items-center gap-1.5">
+                    <Unlink2 className="h-3.5 w-3.5" />
+                    연결 해제
+                  </span>
+                )}
+              </Button>
+            )}
+          </div>
+        ),
+        status: (
+          <div className="flex min-h-5 items-center justify-start sm:justify-end">
+            {errorMessage && (
+              <p className="animate-in fade-in slide-in-from-right-4 flex items-center gap-1.5 text-xs font-semibold text-red-500">
+                <XCircle className="h-3.5 w-3.5" />
+                {errorMessage}
+              </p>
+            )}
+            {statusMessage && (
+              <p className="animate-in fade-in slide-in-from-right-4 flex items-center gap-1.5 text-xs font-semibold text-brand-600 dark:text-brand-400">
+                <CheckCircle2 className="h-3.5 w-3.5" />
+                {statusMessage}
+              </p>
+            )}
+            {!errorMessage && !statusMessage && !isKisVerified && (
+              <p className="flex items-center gap-1.5 text-xs text-zinc-400 dark:text-zinc-600">
+                <span className="h-1.5 w-1.5 rounded-full bg-zinc-300 dark:bg-zinc-700" />
+                미연결 상태입니다
+              </p>
+            )}
+          </div>
+        ),
+      }}
+      className="h-full"
+    >
+      <div className="space-y-4">
+        {/* ========== TRADING MODE ========== */}
+        <section className="rounded-xl border border-zinc-200 bg-zinc-50/70 p-3 dark:border-zinc-800 dark:bg-zinc-900/30">
+          <div className="mb-2 flex items-center gap-1.5 text-xs font-semibold text-zinc-700 dark:text-zinc-200">
+            <ShieldCheck className="h-3.5 w-3.5 text-brand-500" />
+            투자 모드 선택
+          </div>
+          <div className="grid grid-cols-2 gap-2">
+            <button
+              type="button"
+              onClick={() => setKisTradingEnvInput("real")}
+              className={cn(
+                "flex h-9 items-center justify-center gap-1.5 rounded-lg border text-xs font-semibold transition",
+                kisTradingEnvInput === "real"
+                  ? "border-brand-500 bg-brand-600 text-white shadow-sm"
+                  : "border-zinc-200 bg-white text-zinc-600 hover:border-zinc-300 dark:border-zinc-700 dark:bg-zinc-900 dark:text-zinc-300",
+              )}
+            >
+              <Zap className="h-3.5 w-3.5" />
+              실전 투자
+            </button>
+            <button
+              type="button"
+              onClick={() => setKisTradingEnvInput("mock")}
+              className={cn(
+                "flex h-9 items-center justify-center gap-1.5 rounded-lg border text-xs font-semibold transition",
+                kisTradingEnvInput === "mock"
+                  ? "border-zinc-700 bg-zinc-800 text-white shadow-sm dark:border-zinc-500 dark:bg-zinc-700"
+                  : "border-zinc-200 bg-white text-zinc-600 hover:border-zinc-300 dark:border-zinc-700 dark:bg-zinc-900 dark:text-zinc-300",
+              )}
+            >
+              <Activity className="h-3.5 w-3.5" />
+              모의 투자
+            </button>
+          </div>
+        </section>
+
+        {/* ========== APP KEY INPUTS ========== */}
+        <div className="space-y-3">
+          <CredentialInput
+            id="kis-app-key"
+            label="앱키"
+            placeholder="한국투자증권 앱키 입력"
+            value={kisAppKeyInput}
+            onChange={setKisAppKeyInput}
+            icon={KeySquare}
+          />
+          <CredentialInput
+            id="kis-app-secret"
+            label="앱시크릿키"
+            placeholder="한국투자증권 앱시크릿키 입력"
+            value={kisAppSecretInput}
+            onChange={setKisAppSecretInput}
+            icon={Lock}
+          />
+        </div>
+      </div>
+    </SettingsCard>
+  );
+}
+
+/**
+ * @description 앱키/시크릿키 입력 전용 필드 블록입니다.
+ * @see features/settings/components/KisAuthForm.tsx 입력 UI 렌더링
+ */
+function CredentialInput({
+  id,
+  label,
+  value,
+  placeholder,
+  onChange,
+  icon: Icon,
+}: {
+  id: string;
+  label: string;
+  value: string;
+  placeholder: string;
+  onChange: (value: string) => void;
+  icon: LucideIcon;
+}) {
+  return (
+    <div className="space-y-1.5">
+      <Label htmlFor={id} className="text-xs font-semibold text-zinc-600">
+        {label}
+      </Label>
+      <div className="group/input flex items-center overflow-hidden rounded-xl border border-zinc-200 bg-white transition-colors focus-within:border-brand-500 focus-within:ring-1 focus-within:ring-brand-500 dark:border-zinc-700 dark:bg-zinc-900/20">
+        <div className="flex h-10 w-10 shrink-0 items-center justify-center border-r border-zinc-100 bg-zinc-50 text-zinc-400 group-focus-within/input:text-brand-500 dark:border-zinc-800 dark:bg-zinc-800/40">
+          <Icon className="h-4 w-4" />
+        </div>
+        <Input
+          id={id}
+          type="password"
+          value={value}
+          onChange={(e) => onChange(e.target.value)}
+          placeholder={placeholder}
+          className="h-10 border-none bg-transparent px-3 text-sm shadow-none focus-visible:ring-0"
+          autoComplete="off"
+        />
+      </div>
+    </div>
+  );
+}

features/settings/components/KisProfileForm.tsx

@@ -0,0 +1,251 @@
+"use client";
+
+import { useState, useTransition } from "react";
+import { useShallow } from "zustand/react/shallow";
+import {
+  CreditCard,
+  CheckCircle2,
+  SearchCheck,
+  ShieldOff,
+  XCircle,
+  FileLock2,
+} from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { InlineSpinner } from "@/components/ui/loading-spinner";
+import { validateKisProfile } from "@/features/settings/apis/kis-auth.api";
+import { useKisRuntimeStore } from "@/features/settings/store/use-kis-runtime-store";
+import { SettingsCard } from "./SettingsCard";
+
+/**
+ * @description 한국투자증권 계좌번호 검증 폼입니다.
+ * @remarks UI 흐름: /settings -> 계좌번호 입력 -> 계좌 확인 버튼 -> validate-profile API -> store 반영 -> 대시보드 반영
+ * @see app/api/kis/validate-profile/route.ts 계좌번호 검증 서버 라우트
+ * @see features/settings/store/use-kis-runtime-store.ts 검증 성공값을 전역 상태에 저장합니다.
+ */
+export function KisProfileForm() {
+  const {
+    kisAccountNoInput,
+    verifiedCredentials,
+    isKisVerified,
+    isKisProfileVerified,
+    verifiedAccountNo,
+    setKisAccountNoInput,
+    setVerifiedKisProfile,
+    invalidateKisProfileVerification,
+  } = useKisRuntimeStore(
+    useShallow((state) => ({
+      kisAccountNoInput: state.kisAccountNoInput,
+      verifiedCredentials: state.verifiedCredentials,
+      isKisVerified: state.isKisVerified,
+      isKisProfileVerified: state.isKisProfileVerified,
+      verifiedAccountNo: state.verifiedAccountNo,
+      setKisAccountNoInput: state.setKisAccountNoInput,
+      setVerifiedKisProfile: state.setVerifiedKisProfile,
+      invalidateKisProfileVerification: state.invalidateKisProfileVerification,
+    })),
+  );
+
+  const [statusMessage, setStatusMessage] = useState<string | null>(null);
+  const [errorMessage, setErrorMessage] = useState<string | null>(null);
+  const [isValidating, startValidateTransition] = useTransition();
+
+  /**
+   * @description 계좌번호 인증을 해제하고 입력값을 비웁니다.
+   * @see features/settings/store/use-kis-runtime-store.ts setKisAccountNoInput
+   * @see features/settings/store/use-kis-runtime-store.ts invalidateKisProfileVerification
+   */
+  function handleDisconnectAccount() {
+    setStatusMessage("계좌 인증을 해제했습니다.");
+    setErrorMessage(null);
+    setKisAccountNoInput("");
+    invalidateKisProfileVerification();
+  }
+
+  function handleValidateProfile() {
+    startValidateTransition(async () => {
+      try {
+        setStatusMessage(null);
+        setErrorMessage(null);
+
+        if (!verifiedCredentials || !isKisVerified) {
+          throw new Error("먼저 앱키 연결을 완료해 주세요.");
+        }
+
+        const accountNo = kisAccountNoInput.trim();
+
+        if (!accountNo) {
+          throw new Error("계좌번호를 입력해 주세요.");
+        }
+
+        if (!isValidAccountNo(accountNo)) {
+          throw new Error(
+            "계좌번호 형식이 올바르지 않습니다. 8-2 형식(예: 12345678-01)으로 입력해 주세요.",
+          );
+        }
+
+        const result = await validateKisProfile({
+          ...verifiedCredentials,
+          accountNo,
+        });
+
+        setVerifiedKisProfile({
+          accountNo: result.account.normalizedAccountNo,
+        });
+
+        setStatusMessage(result.message);
+      } catch (error) {
+        invalidateKisProfileVerification();
+        setErrorMessage(
+          error instanceof Error
+            ? error.message
+            : "계좌 확인 중 오류가 발생했습니다.",
+        );
+      }
+    });
+  }
+
+  return (
+    <SettingsCard
+      icon={CreditCard}
+      title="한국투자증권 계좌 인증"
+      description="앱키 연결 후 계좌번호를 검증하면 잔고/대시보드 기능을 사용할 수 있습니다."
+      badge={
+        isKisProfileVerified ? (
+          <span className="inline-flex shrink-0 items-center gap-1 whitespace-nowrap rounded-full bg-green-50 px-2 py-0.5 text-[11px] font-medium text-green-700 ring-1 ring-green-600/20 dark:bg-green-500/10 dark:text-green-400 dark:ring-green-500/30">
+            <CheckCircle2 className="h-3 w-3" />
+            인증 완료
+          </span>
+        ) : undefined
+      }
+      className={
+        !isKisVerified ? "opacity-60 grayscale pointer-events-none" : undefined
+      }
+      footer={{
+        actions: (
+          <div className="flex flex-wrap gap-2">
+            <Button
+              type="button"
+              onClick={handleValidateProfile}
+              disabled={
+                !isKisVerified || isValidating || !kisAccountNoInput.trim()
+              }
+              className="h-9 rounded-lg bg-brand-600 px-4 text-xs font-semibold text-white shadow-sm transition-all hover:bg-brand-700 hover:shadow disabled:opacity-50 disabled:shadow-none dark:bg-brand-600 dark:hover:bg-brand-500"
+            >
+              {isValidating ? (
+                <span className="flex items-center gap-1.5">
+                  <InlineSpinner className="h-3 w-3 text-white" />
+                  확인 중
+                </span>
+              ) : (
+                <span className="flex items-center gap-1.5">
+                  <SearchCheck className="h-3.5 w-3.5" />
+                  계좌 인증하기
+                </span>
+              )}
+            </Button>
+            <Button
+              type="button"
+              variant="outline"
+              onClick={handleDisconnectAccount}
+              disabled={!isKisProfileVerified && !kisAccountNoInput.trim()}
+              className="h-9 rounded-lg border-zinc-200 bg-white px-4 text-xs text-zinc-600 hover:bg-zinc-50 hover:text-zinc-900 dark:border-zinc-700 dark:bg-zinc-800 dark:text-zinc-400 dark:hover:text-zinc-200"
+            >
+              <ShieldOff className="h-3.5 w-3.5" />
+              계좌 인증 해제
+            </Button>
+          </div>
+        ),
+        status: (
+          <div className="flex min-h-5 items-center justify-start sm:justify-end">
+            {errorMessage && (
+              <p className="animate-in fade-in slide-in-from-right-4 flex items-center gap-1.5 text-xs font-semibold text-red-500">
+                <XCircle className="h-3.5 w-3.5" />
+                {errorMessage}
+              </p>
+            )}
+            {statusMessage && (
+              <p className="animate-in fade-in slide-in-from-right-4 flex items-center gap-1.5 text-xs font-semibold text-brand-600 dark:text-brand-400">
+                <CheckCircle2 className="h-3.5 w-3.5" />
+                {statusMessage}
+              </p>
+            )}
+            {!statusMessage && !errorMessage && !isKisVerified && (
+              <p className="flex items-center gap-1.5 text-xs text-zinc-400 dark:text-zinc-600">
+                <span className="h-1.5 w-1.5 rounded-full bg-zinc-300 dark:bg-zinc-700" />
+                먼저 앱키 연결을 완료해 주세요
+              </p>
+            )}
+            {!statusMessage && !errorMessage && isKisProfileVerified && (
+              <p className="animate-in fade-in slide-in-from-right-4 flex items-center gap-1.5 text-xs font-medium text-zinc-500 dark:text-zinc-400">
+                확인된 계좌: {maskAccountNo(verifiedAccountNo)}
+              </p>
+            )}
+          </div>
+        ),
+      }}
+    >
+      <div className="space-y-4">
+        {/* ========== ACCOUNT GUIDE ========== */}
+        <section className="rounded-xl border border-zinc-200 bg-zinc-50/70 p-3 dark:border-zinc-800 dark:bg-zinc-900/30">
+          <p className="flex items-center gap-1.5 text-xs font-semibold text-zinc-700 dark:text-zinc-200">
+            <FileLock2 className="h-3.5 w-3.5 text-brand-500" />
+            계좌번호 형식 안내
+          </p>
+          <p className="mt-1 text-xs leading-relaxed text-zinc-600 dark:text-zinc-300">
+            8-2 형식으로 입력하세요. 예: <span className="font-medium">12345678-01</span>
+          </p>
+        </section>
+
+        {/* ========== ACCOUNT NO INPUT ========== */}
+        <div className="space-y-1.5">
+          <Label
+            htmlFor="kis-account-no"
+            className="text-xs font-semibold text-zinc-600"
+          >
+            계좌번호
+          </Label>
+          <div className="group/input flex items-center overflow-hidden rounded-xl border border-zinc-200 bg-white transition-colors focus-within:border-brand-500 focus-within:ring-1 focus-within:ring-brand-500 dark:border-zinc-700 dark:bg-zinc-900/20">
+            <div className="flex h-10 w-10 shrink-0 items-center justify-center border-r border-zinc-100 bg-zinc-50 text-zinc-400 group-focus-within/input:text-brand-500 dark:border-zinc-800 dark:bg-zinc-800/40">
+              <CreditCard className="h-4 w-4" />
+            </div>
+            <Input
+              id="kis-account-no"
+              type="password"
+              value={kisAccountNoInput}
+              onChange={(e) => setKisAccountNoInput(e.target.value)}
+              placeholder="계좌번호 (예: 12345678-01)"
+              className="h-10 border-none bg-transparent px-3 text-sm shadow-none focus-visible:ring-0"
+              autoComplete="off"
+            />
+          </div>
+        </div>
+      </div>
+    </SettingsCard>
+  );
+}
+
+/**
+ * @description KIS 계좌번호(8-2) 입력 포맷을 검증합니다.
+ * @param value 사용자 입력 계좌번호
+ * @returns 형식 유효 여부
+ * @see features/settings/components/KisProfileForm.tsx handleValidateProfile
+ */
+function isValidAccountNo(value: string) {
+  const digits = value.replace(/\D/g, "");
+  return digits.length === 10;
+}
+
+/**
+ * @description 표시용 계좌번호를 마스킹 처리합니다.
+ * @param value 계좌번호(8-2)
+ * @returns 마스킹 계좌번호
+ * @see features/settings/components/KisProfileForm.tsx 확인된 값 표시
+ */
+function maskAccountNo(value: string | null) {
+  if (!value) return "-";
+  const digits = value.replace(/\D/g, "");
+  if (digits.length !== 10) return "********";
+  return "********-**";
+}

features/settings/components/SettingsCard.tsx

@@ -0,0 +1,98 @@
+"use client";
+
+import { ReactNode } from "react";
+import { LucideIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+
+interface SettingsCardProps {
+  /** 카드 상단에 표시될 아이콘 컴포넌트 */
+  icon: LucideIcon;
+  /** 카드 제목 */
+  title: ReactNode;
+  /** 제목 옆에 표시될 배지 (선택 사항) */
+  badge?: ReactNode;
+  /** 헤더 우측에 표시될 액션 요소 (스위치, 버튼 등) */
+  headerAction?: ReactNode;
+  /** 카드 설명 텍스트 */
+  description?: string;
+  /** 카드 본문 컨텐츠 */
+  children: ReactNode;
+  /** 카드 하단 영역 (액션 버튼 및 상태 메시지 포함) */
+  footer?: {
+    /** 좌측 액션 버튼들 */
+    actions?: ReactNode;
+    /** 우측 상태 메시지 */
+    status?: ReactNode;
+  };
+  /** 추가 클래스 */
+  className?: string;
+}
+
+/**
+ * @description 설정 페이지에서 사용되는 통일된 카드 UI 컴포넌트입니다.
+ * @remarks 모든 설정 폼(인증, 프로필 등)은 이 컴포넌트를 사용하여 일관된 디자인을 유지해야 합니다.
+ */
+export function SettingsCard({
+  icon: Icon,
+  title,
+  badge,
+  headerAction,
+  description,
+  children,
+  footer,
+  className,
+}: SettingsCardProps) {
+  return (
+    <div
+      className={cn(
+        "group relative flex h-full flex-col overflow-hidden rounded-2xl border border-zinc-200 bg-white shadow-sm transition-all hover:-translate-y-0.5 hover:border-brand-200 hover:shadow-md dark:border-zinc-800 dark:bg-zinc-900/50 dark:hover:border-brand-800 dark:hover:shadow-brand-900/10",
+        className,
+      )}
+    >
+      <div className="pointer-events-none absolute inset-x-0 top-0 h-px bg-gradient-to-r from-transparent via-brand-300/70 to-transparent dark:via-brand-600/60" />
+
+      <div className="flex flex-1 flex-col p-5 sm:p-6">
+        {/* ========== CARD HEADER ========== */}
+        <div className="mb-5 flex flex-col gap-4">
+          <div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
+            <div className="flex min-w-0 gap-3">
+              <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-brand-50 text-brand-600 ring-1 ring-brand-100 dark:bg-brand-900/20 dark:text-brand-400 dark:ring-brand-800/50">
+                <Icon className="h-5 w-5" />
+              </div>
+              <div className="min-w-0 flex-1">
+                <div className="flex flex-wrap items-center gap-2">
+                  <h2 className="truncate text-base font-bold tracking-tight text-zinc-900 dark:text-zinc-100">
+                    {title}
+                  </h2>
+                  {badge && <div className="shrink-0">{badge}</div>}
+                </div>
+                {description && (
+                  <p className="mt-1 text-[13px] font-medium leading-normal text-zinc-500 dark:text-zinc-400">
+                    {description}
+                  </p>
+                )}
+              </div>
+            </div>
+
+            {headerAction && (
+              <div className="sm:shrink-0 sm:pl-2">{headerAction}</div>
+            )}
+          </div>
+        </div>
+
+        {/* ========== CARD BODY ========== */}
+        <div className="flex-1">{children}</div>
+      </div>
+
+      {/* ========== CARD FOOTER ========== */}
+      {footer && (
+        <div className="border-t border-zinc-100 bg-zinc-50/50 px-5 py-3 dark:border-zinc-800/50 dark:bg-zinc-900/30 sm:px-6">
+          <div className="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
+            <div className="flex flex-wrap gap-2">{footer.actions}</div>
+            <div className="text-left sm:text-right">{footer.status}</div>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}

features/settings/components/SettingsContainer.tsx

@@ -0,0 +1,141 @@
+"use client";
+
+import { type LucideIcon, Info, Link2, Wallet } from "lucide-react";
+import { useShallow } from "zustand/react/shallow";
+import { KisAuthForm } from "@/features/settings/components/KisAuthForm";
+import { KisProfileForm } from "@/features/settings/components/KisProfileForm";
+import { useKisRuntimeStore } from "@/features/settings/store/use-kis-runtime-store";
+import { cn } from "@/lib/utils";
+
+/**
+ * @description 설정 페이지 컨테이너입니다. KIS 연결 상태와 인증 폼을 카드 UI로 제공합니다.
+ * @see app/(main)/settings/page.tsx 로그인 확인 후 이 컴포넌트를 렌더링합니다.
+ * @see features/settings/components/KisAuthForm.tsx 실제 인증 입력/검증/해제를 담당합니다.
+ */
+export function SettingsContainer() {
+  // 상태 정의: 연결 상태 표시용 전역 인증 상태를 구독합니다.
+  const {
+    verifiedCredentials,
+    isKisVerified,
+    isKisProfileVerified,
+    verifiedAccountNo,
+  } = useKisRuntimeStore(
+    useShallow((state) => ({
+      verifiedCredentials: state.verifiedCredentials,
+      isKisVerified: state.isKisVerified,
+      isKisProfileVerified: state.isKisProfileVerified,
+      verifiedAccountNo: state.verifiedAccountNo,
+    })),
+  );
+
+  return (
+    <section className="mx-auto flex w-full max-w-[1400px] flex-col gap-6 px-4 py-4 md:px-8 md:py-8">
+      {/* ========== SETTINGS OVERVIEW ========== */}
+      <article className="rounded-2xl border border-brand-200 bg-gradient-to-br from-brand-50/80 via-background to-background p-5 dark:border-brand-800/45 dark:from-brand-900/30 dark:via-brand-950/10 dark:to-background md:p-6">
+        <div className="grid gap-6 xl:grid-cols-[minmax(0,1.3fr)_minmax(0,1fr)]">
+          <div className="space-y-3">
+            <h1 className="text-2xl font-semibold tracking-tight text-foreground">
+              한국투자증권 연결 센터
+            </h1>
+            <p className="text-sm leading-relaxed text-muted-foreground">
+              앱키 연결과 계좌 확인을 한 화면에서 처리합니다. 아래 순서대로
+              진행하면 바로 대시보드/트레이드 화면에 반영됩니다.
+            </p>
+            <div className="rounded-xl border border-brand-200/70 bg-brand-50/70 p-3 dark:border-brand-800/60 dark:bg-brand-900/20">
+              <p className="text-xs font-semibold text-brand-700 dark:text-brand-200">
+                진행 순서: 1) 앱키 연결 확인 {"->"} 2) 계좌 인증 {"->"} 3)
+                거래 화면 사용
+              </p>
+            </div>
+          </div>
+
+          <div className="grid gap-3 sm:grid-cols-2 xl:grid-cols-1">
+            <StatusTile
+              icon={Link2}
+              title="앱키 연결"
+              value={
+                isKisVerified
+                  ? `연결됨 (${verifiedCredentials?.tradingEnv === "real" ? "실전" : "모의"})`
+                  : "미연결"
+              }
+              tone={isKisVerified ? "success" : "idle"}
+            />
+            <StatusTile
+              icon={Wallet}
+              title="계좌 인증"
+              value={
+                isKisProfileVerified
+                  ? `확인 완료 (${maskAccountNo(verifiedAccountNo)})`
+                  : "미확인"
+              }
+              tone={isKisProfileVerified ? "success" : "idle"}
+            />
+            <StatusTile
+              icon={Info}
+              title="입력 정보 보관"
+              value="서버 DB 저장 없음 · 현재 브라우저에서만 관리"
+              tone="notice"
+            />
+          </div>
+        </div>
+      </article>
+
+      {/* ========== FORM GRID ========== */}
+      <div className="grid gap-6 xl:grid-cols-[minmax(0,1.2fr)_minmax(0,1fr)]">
+        <KisAuthForm />
+        <KisProfileForm />
+      </div>
+    </section>
+  );
+}
+
+/**
+ * @description 계좌번호 마스킹 문자열을 반환합니다.
+ * @param value 계좌번호(8-2)
+ * @returns 마스킹 계좌번호
+ * @see features/settings/components/SettingsContainer.tsx 프로필 상태 라벨 표시
+ */
+function maskAccountNo(value: string | null) {
+  if (!value) return "-";
+  const digits = value.replace(/\D/g, "");
+  if (digits.length !== 10) return "********";
+  return "********-**";
+}
+
+type StatusTileTone = "success" | "idle" | "notice";
+
+/**
+ * @description 설정 페이지 상단 요약 상태 타일입니다.
+ * @see features/settings/components/SettingsContainer.tsx 상태 요약 렌더링
+ */
+function StatusTile({
+  icon: Icon,
+  title,
+  value,
+  tone,
+}: {
+  icon: LucideIcon;
+  title: string;
+  value: string;
+  tone: StatusTileTone;
+}) {
+  return (
+    <div
+      className={cn(
+        "rounded-xl border px-3 py-2.5",
+        tone === "success" &&
+          "border-emerald-200 bg-emerald-50/70 dark:border-emerald-800/45 dark:bg-emerald-900/15",
+        tone === "idle" &&
+          "border-zinc-200 bg-zinc-50/70 dark:border-zinc-800 dark:bg-zinc-900/30",
+        tone === "notice" &&
+          "border-amber-300 bg-amber-50/70 dark:border-amber-800/45 dark:bg-amber-900/20",
+      )}
+    >
+      <p className="flex items-center gap-1.5 text-[12px] font-semibold text-zinc-700 dark:text-zinc-200">
+        <Icon className="h-3.5 w-3.5" />
+        {title}
+      </p>
+      <p className="mt-1 text-xs text-zinc-600 dark:text-zinc-300">{value}</p>
+    </div>
+  );
+}

features/settings/store/use-kis-runtime-store.ts

@@ -0,0 +1,261 @@
+"use client";
+
+import { fetchKisWebSocketApproval } from "@/features/settings/apis/kis-auth.api";
+import type { KisTradingEnv } from "@/features/trade/types/trade.types";
+import { createJSONStorage, persist } from "zustand/middleware";
+import { create } from "zustand";
+
+/**
+ * @file features/settings/store/use-kis-runtime-store.ts
+ * @description Stores KIS input, verification, and websocket connection state.
+ * @see features/trade/hooks/useKisTradeWebSocket.ts
+ */
+export interface KisRuntimeCredentials {
+  appKey: string;
+  appSecret: string;
+  tradingEnv: KisTradingEnv;
+  accountNo: string;
+}
+
+interface KisWsConnection {
+  approvalKey: string;
+  wsUrl: string;
+}
+
+interface KisRuntimeStoreState {
+  kisTradingEnvInput: KisTradingEnv;
+  kisAppKeyInput: string;
+  kisAppSecretInput: string;
+  kisAccountNoInput: string;
+
+  verifiedCredentials: KisRuntimeCredentials | null;
+  isKisVerified: boolean;
+  isKisProfileVerified: boolean;
+  verifiedAccountNo: string | null;
+  tradingEnv: KisTradingEnv;
+
+  wsApprovalKey: string | null;
+  wsUrl: string | null;
+
+  _hasHydrated: boolean;
+}
+
+interface KisRuntimeStoreActions {
+  setKisTradingEnvInput: (tradingEnv: KisTradingEnv) => void;
+  setKisAppKeyInput: (appKey: string) => void;
+  setKisAppSecretInput: (appSecret: string) => void;
+  setKisAccountNoInput: (accountNo: string) => void;
+  setVerifiedKisSession: (
+    credentials: KisRuntimeCredentials,
+    tradingEnv: KisTradingEnv,
+  ) => void;
+  setVerifiedKisProfile: (profile: {
+    accountNo: string;
+  }) => void;
+  invalidateKisProfileVerification: () => void;
+  invalidateKisVerification: () => void;
+  clearKisRuntimeSession: (tradingEnv: KisTradingEnv) => void;
+  getOrFetchWsConnection: () => Promise<KisWsConnection | null>;
+  clearWsConnectionCache: () => void;
+  setHasHydrated: (state: boolean) => void;
+}
+
+const INITIAL_STATE: KisRuntimeStoreState = {
+  kisTradingEnvInput: "real",
+  kisAppKeyInput: "",
+  kisAppSecretInput: "",
+  kisAccountNoInput: "",
+  verifiedCredentials: null,
+  isKisVerified: false,
+  isKisProfileVerified: false,
+  verifiedAccountNo: null,
+  tradingEnv: "real",
+  wsApprovalKey: null,
+  wsUrl: null,
+  _hasHydrated: false,
+};
+
+const RESET_PROFILE_STATE = {
+  isKisProfileVerified: false,
+  verifiedAccountNo: null,
+} as const;
+
+const RESET_VERIFICATION_STATE = {
+  verifiedCredentials: null,
+  isKisVerified: false,
+  ...RESET_PROFILE_STATE,
+  wsApprovalKey: null,
+  wsUrl: null,
+};
+
+let wsConnectionPromise: Promise<KisWsConnection | null> | null = null;
+
+/**
+ * @description Runtime store for KIS session.
+ * @see features/settings/components/KisAuthForm.tsx
+ */
+export const useKisRuntimeStore = create<
+  KisRuntimeStoreState & KisRuntimeStoreActions
+>()(
+  persist(
+    (set, get) => ({
+      ...INITIAL_STATE,
+
+      setKisTradingEnvInput: (tradingEnv) =>
+        set({
+          kisTradingEnvInput: tradingEnv,
+          ...RESET_VERIFICATION_STATE,
+        }),
+
+      setKisAppKeyInput: (appKey) =>
+        set({
+          kisAppKeyInput: appKey,
+          ...RESET_VERIFICATION_STATE,
+        }),
+
+      setKisAppSecretInput: (appSecret) =>
+        set({
+          kisAppSecretInput: appSecret,
+          ...RESET_VERIFICATION_STATE,
+        }),
+
+      setKisAccountNoInput: (accountNo) =>
+        set((state) => ({
+          kisAccountNoInput: accountNo,
+          ...RESET_PROFILE_STATE,
+          verifiedCredentials: state.verifiedCredentials
+            ? {
+                ...state.verifiedCredentials,
+                accountNo: "",
+              }
+            : null,
+        })),
+
+      setVerifiedKisSession: (credentials, tradingEnv) =>
+        set({
+          verifiedCredentials: credentials,
+          isKisVerified: true,
+          tradingEnv,
+          wsApprovalKey: null,
+          wsUrl: null,
+        }),
+
+      setVerifiedKisProfile: ({ accountNo }) =>
+        set((state) => ({
+          isKisProfileVerified: true,
+          verifiedAccountNo: accountNo,
+          verifiedCredentials: state.verifiedCredentials
+            ? {
+                ...state.verifiedCredentials,
+                accountNo,
+              }
+            : state.verifiedCredentials,
+          wsApprovalKey: null,
+          wsUrl: null,
+        })),
+
+      invalidateKisProfileVerification: () =>
+        set((state) => ({
+          ...RESET_PROFILE_STATE,
+          verifiedCredentials: state.verifiedCredentials
+            ? {
+                ...state.verifiedCredentials,
+                accountNo: "",
+              }
+            : state.verifiedCredentials,
+          wsApprovalKey: null,
+          wsUrl: null,
+        })),
+
+      invalidateKisVerification: () =>
+        set({
+          ...RESET_VERIFICATION_STATE,
+        }),
+
+      clearKisRuntimeSession: (tradingEnv) =>
+        set({
+          kisTradingEnvInput: tradingEnv,
+          kisAppKeyInput: "",
+          kisAppSecretInput: "",
+          kisAccountNoInput: "",
+          ...RESET_VERIFICATION_STATE,
+          tradingEnv,
+        }),
+
+      getOrFetchWsConnection: async () => {
+        const { wsApprovalKey, wsUrl, verifiedCredentials } = get();
+
+        if (wsApprovalKey && wsUrl) {
+          return { approvalKey: wsApprovalKey, wsUrl };
+        }
+
+        if (!verifiedCredentials) {
+          return null;
+        }
+
+        if (wsConnectionPromise) {
+          return wsConnectionPromise;
+        }
+
+        wsConnectionPromise = (async () => {
+          try {
+            const data = await fetchKisWebSocketApproval(verifiedCredentials);
+            if (!data.approvalKey || !data.wsUrl) {
+              return null;
+            }
+
+            const nextConnection = {
+              approvalKey: data.approvalKey,
+              wsUrl: data.wsUrl,
+            } satisfies KisWsConnection;
+
+            set({
+              wsApprovalKey: nextConnection.approvalKey,
+              wsUrl: nextConnection.wsUrl,
+            });
+
+            return nextConnection;
+          } catch (error) {
+            console.error(error);
+            return null;
+          } finally {
+            wsConnectionPromise = null;
+          }
+        })();
+
+        return wsConnectionPromise;
+      },
+      clearWsConnectionCache: () => {
+        wsConnectionPromise = null;
+        set({
+          wsApprovalKey: null,
+          wsUrl: null,
+        });
+      },
+      setHasHydrated: (state) => {
+        set({
+          _hasHydrated: state,
+        });
+      },
+    }),
+    {
+      name: "autotrade-kis-runtime-store",
+      storage: createJSONStorage(() => localStorage),
+      onRehydrateStorage: () => (state) => {
+        state?.setHasHydrated(true);
+      },
+      partialize: (state) => ({
+        kisTradingEnvInput: state.kisTradingEnvInput,
+        kisAppKeyInput: state.kisAppKeyInput,
+        kisAppSecretInput: state.kisAppSecretInput,
+        kisAccountNoInput: state.kisAccountNoInput,
+        verifiedCredentials: state.verifiedCredentials,
+        isKisVerified: state.isKisVerified,
+        isKisProfileVerified: state.isKisProfileVerified,
+        verifiedAccountNo: state.verifiedAccountNo,
+        tradingEnv: state.tradingEnv,
+        // wsApprovalKey/wsUrl are kept in memory only (expiration-sensitive).
+      }),
+    },
+  ),
+);

features/trade/apis/kis-stock.api.ts

@@ -0,0 +1,202 @@
+import type { KisRuntimeCredentials } from "@/features/settings/store/use-kis-runtime-store";
+import type {
+  DashboardChartTimeframe,
+  DashboardStockCashOrderRequest,
+  DashboardStockCashOrderResponse,
+  DashboardStockChartResponse,
+  DashboardStockOrderBookResponse,
+  DashboardStockOverviewResponse,
+  DashboardStockSearchResponse,
+} from "@/features/trade/types/trade.types";
+import {
+  DOMESTIC_KIS_SESSION_OVERRIDE_HEADER,
+  DOMESTIC_KIS_SESSION_OVERRIDE_STORAGE_KEY,
+  parseDomesticKisSession,
+} from "@/lib/kis/domestic-market-session";
+
+/**
+ * 종목 검색 API 호출
+ * @param keyword 검색어
+ */
+export async function fetchStockSearch(
+  keyword: string,
+  signal?: AbortSignal,
+): Promise<DashboardStockSearchResponse> {
+  const response = await fetch(
+    `/api/kis/domestic/search?q=${encodeURIComponent(keyword)}`,
+    {
+      cache: "no-store",
+      signal,
+    },
+  );
+
+  const payload = (await response.json()) as
+    | DashboardStockSearchResponse
+    | { error?: string };
+
+  if (!response.ok) {
+    throw new Error(
+      "error" in payload ? payload.error : "종목 검색 중 오류가 발생했습니다.",
+    );
+  }
+
+  return payload as DashboardStockSearchResponse;
+}
+
+/**
+ * 종목 상세 개요 조회 API 호출
+ * @param symbol 종목코드
+ * @param credentials KIS 인증 정보
+ */
+export async function fetchStockOverview(
+  symbol: string,
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardStockOverviewResponse> {
+  const response = await fetch(
+    `/api/kis/domestic/overview?symbol=${encodeURIComponent(symbol)}`,
+    {
+      method: "GET",
+      headers: buildKisRequestHeaders(credentials),
+      cache: "no-store",
+    },
+  );
+
+  const payload = (await response.json()) as
+    | DashboardStockOverviewResponse
+    | { error?: string };
+
+  if (!response.ok) {
+    throw new Error(
+      "error" in payload ? payload.error : "종목 조회 중 오류가 발생했습니다.",
+    );
+  }
+
+  return payload as DashboardStockOverviewResponse;
+}
+
+/**
+ * 종목 호가 조회 API 호출
+ * @param symbol 종목코드
+ * @param credentials KIS 인증 정보
+ */
+export async function fetchStockOrderBook(
+  symbol: string,
+  credentials: KisRuntimeCredentials,
+  signal?: AbortSignal,
+): Promise<DashboardStockOrderBookResponse> {
+  const response = await fetch(
+    `/api/kis/domestic/orderbook?symbol=${encodeURIComponent(symbol)}`,
+    {
+      method: "GET",
+      headers: buildKisRequestHeaders(credentials),
+      cache: "no-store",
+      signal,
+    },
+  );
+
+  const payload = (await response.json()) as
+    | DashboardStockOrderBookResponse
+    | { error?: string };
+
+  if (!response.ok) {
+    throw new Error(
+      "error" in payload ? payload.error : "호가 조회 중 오류가 발생했습니다.",
+    );
+  }
+
+  return payload as DashboardStockOrderBookResponse;
+}
+
+/**
+ * 종목 차트(분봉/일봉/주봉) 조회 API 호출
+ */
+export async function fetchStockChart(
+  symbol: string,
+  timeframe: DashboardChartTimeframe,
+  credentials: KisRuntimeCredentials,
+  cursor?: string,
+): Promise<DashboardStockChartResponse> {
+  const query = new URLSearchParams({
+    symbol,
+    timeframe,
+  });
+  if (cursor) query.set("cursor", cursor);
+
+  const response = await fetch(`/api/kis/domestic/chart?${query.toString()}`, {
+    method: "GET",
+    headers: buildKisRequestHeaders(credentials),
+    cache: "no-store",
+  });
+
+  const payload = (await response.json()) as
+    | DashboardStockChartResponse
+    | { error?: string };
+
+  if (!response.ok) {
+    throw new Error(
+      "error" in payload ? payload.error : "차트 조회 중 오류가 발생했습니다.",
+    );
+  }
+
+  return payload as DashboardStockChartResponse;
+}
+
+/**
+ * 주식 현금 주문 API 호출
+ * @param request 주문 요청 데이터
+ * @param credentials KIS 인증 정보
+ */
+export async function fetchOrderCash(
+  request: DashboardStockCashOrderRequest,
+  credentials: KisRuntimeCredentials,
+): Promise<DashboardStockCashOrderResponse> {
+  const response = await fetch("/api/kis/domestic/order-cash", {
+    method: "POST",
+    headers: buildKisRequestHeaders(credentials, { jsonContentType: true }),
+    body: JSON.stringify(request),
+    cache: "no-store",
+  });
+
+  const payload = (await response.json()) as DashboardStockCashOrderResponse;
+
+  if (!response.ok) {
+    throw new Error(payload.message || "주문 전송 중 오류가 발생했습니다.");
+  }
+
+  return payload;
+}
+
+function buildKisRequestHeaders(
+  credentials: KisRuntimeCredentials,
+  options?: { jsonContentType?: boolean },
+) {
+  const headers: Record<string, string> = {
+    "x-kis-app-key": credentials.appKey,
+    "x-kis-app-secret": credentials.appSecret,
+    "x-kis-trading-env": credentials.tradingEnv,
+  };
+
+  if (options?.jsonContentType) {
+    headers["content-type"] = "application/json";
+  }
+
+  const sessionOverride = readSessionOverrideForDev();
+  if (sessionOverride) {
+    headers[DOMESTIC_KIS_SESSION_OVERRIDE_HEADER] = sessionOverride;
+  }
+
+  return headers;
+}
+
+function readSessionOverrideForDev() {
+  if (typeof window === "undefined") return null;
+
+  try {
+    const raw = window.localStorage.getItem(
+      DOMESTIC_KIS_SESSION_OVERRIDE_STORAGE_KEY,
+    );
+    return parseDomesticKisSession(raw);
+  } catch {
+    return null;
+  }
+}

features/trade/components/TradeContainer.tsx

@@ -0,0 +1,267 @@
+"use client";
+
+import { type FormEvent, useCallback, useEffect, useState } from "react";
+import { useSearchParams } from "next/navigation";
+import { useShallow } from "zustand/react/shallow";
+import { LoadingSpinner } from "@/components/ui/loading-spinner";
+import { useKisRuntimeStore } from "@/features/settings/store/use-kis-runtime-store";
+import { TradeAccessGate } from "@/features/trade/components/guards/TradeAccessGate";
+import { TradeDashboardContent } from "@/features/trade/components/layout/TradeDashboardContent";
+import { TradeSearchSection } from "@/features/trade/components/search/TradeSearchSection";
+import { useStockSearch } from "@/features/trade/hooks/useStockSearch";
+import { useOrderBook } from "@/features/trade/hooks/useOrderBook";
+import { useKisTradeWebSocket } from "@/features/trade/hooks/useKisTradeWebSocket";
+import { useStockOverview } from "@/features/trade/hooks/useStockOverview";
+import { useCurrentPrice } from "@/features/trade/hooks/useCurrentPrice";
+import { useTradeSearchPanel } from "@/features/trade/hooks/useTradeSearchPanel";
+import type {
+  DashboardStockOrderBookResponse,
+  DashboardStockSearchItem,
+} from "@/features/trade/types/trade.types";
+
+/**
+ * @description 트레이딩 페이지 메인 컨테이너입니다.
+ * @see app/(main)/trade/page.tsx 로그인 완료 후 이 컴포넌트를 렌더링합니다.
+ * @see app/(main)/settings/page.tsx 미인증 상태일 때 설정 페이지로 이동하도록 안내합니다.
+ * @see features/trade/hooks/useStockSearch.ts 검색 입력/요청/히스토리 상태를 관리합니다.
+ * @see features/trade/hooks/useStockOverview.ts 선택 종목 상세 상태를 관리합니다.
+ */
+export function TradeContainer() {
+  const searchParams = useSearchParams();
+  const symbolParam = searchParams.get("symbol");
+  const nameParam = searchParams.get("name");
+
+  // [State] 호가 실시간 데이터 (체결 WS와 동일 소켓에서 수신)
+  const [realtimeOrderBook, setRealtimeOrderBook] =
+    useState<DashboardStockOrderBookResponse | null>(null);
+  const { verifiedCredentials, isKisVerified, _hasHydrated } =
+    useKisRuntimeStore(
+      useShallow((state) => ({
+        verifiedCredentials: state.verifiedCredentials,
+        isKisVerified: state.isKisVerified,
+        _hasHydrated: state._hasHydrated,
+      })),
+    );
+
+  const {
+    keyword,
+    setKeyword,
+    searchResults,
+    setSearchError,
+    isSearching,
+    search,
+    clearSearch,
+    searchHistory,
+    appendSearchHistory,
+    removeSearchHistory,
+    clearSearchHistory,
+  } = useStockSearch();
+  const { selectedStock, loadOverview, updateRealtimeTradeTick } =
+    useStockOverview();
+
+  /**
+   * [Effect] URL 파라미터(symbol) 감지 시 자동 종목 로드
+   * 대시보드 등 외부에서 종목 코드를 넘겨받아 트레이딩 페이지로 진입할 때 사용합니다.
+   */
+  useEffect(() => {
+    if (symbolParam && isKisVerified && verifiedCredentials && _hasHydrated) {
+      // 현재 선택된 종목과 파라미터가 다를 경우에만 자동 로드 수행
+      if (selectedStock?.symbol !== symbolParam) {
+        setKeyword(nameParam || symbolParam);
+        appendSearchHistory({
+          symbol: symbolParam,
+          name: nameParam || symbolParam,
+          market: "KOSPI", // 기본값 설정, loadOverview 이후 실제 데이터로 보완됨
+        });
+        loadOverview(symbolParam, verifiedCredentials);
+      }
+    }
+  }, [
+    symbolParam,
+    nameParam,
+    isKisVerified,
+    verifiedCredentials,
+    _hasHydrated,
+    selectedStock?.symbol,
+    loadOverview,
+    setKeyword,
+    appendSearchHistory,
+  ]);
+
+  const canTrade = isKisVerified && !!verifiedCredentials;
+  const canSearch = canTrade;
+
+  const {
+    searchShellRef,
+    isSearchPanelOpen,
+    markSkipNextAutoSearch,
+    openSearchPanel,
+    closeSearchPanel,
+    handleSearchShellBlur,
+    handleSearchShellKeyDown,
+  } = useTradeSearchPanel({
+    canSearch,
+    keyword,
+    verifiedCredentials,
+    search,
+    clearSearch,
+  });
+
+  /**
+   * @description 체결 WS에서 전달받은 실시간 호가를 상태에 저장합니다.
+   * @see features/trade/hooks/useKisTradeWebSocket.ts onOrderBookMessage 콜백
+   * @see features/trade/hooks/useOrderBook.ts externalRealtimeOrderBook 주입
+   */
+  const handleOrderBookMessage = useCallback(
+    (data: DashboardStockOrderBookResponse) => {
+      setRealtimeOrderBook(data);
+    },
+    [],
+  );
+
+  // 1. Trade WebSocket (체결 + 호가 통합)
+  const { latestTick, recentTradeTicks } = useKisTradeWebSocket(
+    selectedStock?.symbol,
+    verifiedCredentials,
+    isKisVerified,
+    updateRealtimeTradeTick,
+    {
+      orderBookSymbol: selectedStock?.symbol,
+      onOrderBookMessage: handleOrderBookMessage,
+    },
+  );
+
+  // 2. OrderBook (REST 초기 조회 + WS 실시간 병합)
+  const { orderBook, isLoading: isOrderBookLoading } = useOrderBook(
+    selectedStock?.symbol,
+    selectedStock?.market,
+    verifiedCredentials,
+    isKisVerified,
+    {
+      enabled: !!selectedStock && !!verifiedCredentials && isKisVerified,
+      externalRealtimeOrderBook: realtimeOrderBook,
+    },
+  );
+
+  // 3. Price Calculation Logic (Hook)
+  const {
+    currentPrice,
+    change,
+    changeRate,
+    prevClose: referencePrice,
+  } = useCurrentPrice({
+    stock: selectedStock,
+    latestTick,
+    orderBook,
+  });
+
+  /**
+   * @description 검색 전 API 인증 여부를 확인합니다.
+   * @see features/trade/components/search/StockSearchForm.tsx 검색 제출 전 공통 가드로 사용합니다.
+   */
+  const ensureSearchReady = useCallback(() => {
+    if (canSearch) return true;
+    setSearchError("API 키 검증을 먼저 완료해 주세요.");
+    return false;
+  }, [canSearch, setSearchError]);
+
+  /**
+   * @description 수동 검색 버튼(엔터 포함) 제출 이벤트를 처리합니다.
+   * @see features/trade/components/search/StockSearchForm.tsx onSubmit 이벤트로 호출됩니다.
+   */
+  const handleSearchSubmit = useCallback(
+    (event: FormEvent) => {
+      event.preventDefault();
+      if (!ensureSearchReady() || !verifiedCredentials) return;
+      search(keyword, verifiedCredentials);
+    },
+    [ensureSearchReady, keyword, search, verifiedCredentials],
+  );
+
+  /**
+   * @description 검색 결과/히스토리에서 종목을 선택하면 종목 상세를 로드하고 히스토리를 갱신합니다.
+   * @see features/trade/components/search/StockSearchResults.tsx onSelect 이벤트
+   * @see features/trade/components/search/StockSearchHistory.tsx onSelect 이벤트
+   */
+  const handleSelectStock = useCallback(
+    (item: DashboardStockSearchItem) => {
+      if (!ensureSearchReady() || !verifiedCredentials) return;
+
+      // 같은 종목 재선택 시 중복 overview 요청을 막고 검색 목록만 닫습니다.
+      if (selectedStock?.symbol === item.symbol) {
+        clearSearch();
+        closeSearchPanel();
+        return;
+      }
+
+      // 카드 선택으로 keyword가 바뀔 때 자동 검색이 다시 실행되지 않게 한 번 건너뜁니다.
+      markSkipNextAutoSearch();
+      setKeyword(item.name);
+      clearSearch();
+      closeSearchPanel();
+      appendSearchHistory(item);
+      loadOverview(item.symbol, verifiedCredentials, item.market);
+    },
+    [
+      ensureSearchReady,
+      verifiedCredentials,
+      selectedStock?.symbol,
+      clearSearch,
+      closeSearchPanel,
+      setKeyword,
+      appendSearchHistory,
+      loadOverview,
+      markSkipNextAutoSearch,
+    ],
+  );
+
+  if (!_hasHydrated) {
+    return (
+      <div className="flex h-full items-center justify-center p-6">
+        <LoadingSpinner />
+      </div>
+    );
+  }
+
+  if (!canTrade) {
+    return <TradeAccessGate canTrade={canTrade} />;
+  }
+
+  return (
+    <div className="relative h-full flex flex-col">
+      {/* ========== SEARCH SECTION ========== */}
+      <TradeSearchSection
+        canSearch={canSearch}
+        isSearchPanelOpen={isSearchPanelOpen}
+        isSearching={isSearching}
+        keyword={keyword}
+        selectedSymbol={selectedStock?.symbol}
+        searchResults={searchResults}
+        searchHistory={searchHistory}
+        searchShellRef={searchShellRef}
+        onKeywordChange={setKeyword}
+        onSearchSubmit={handleSearchSubmit}
+        onSearchFocus={openSearchPanel}
+        onSearchShellBlur={handleSearchShellBlur}
+        onSearchShellKeyDown={handleSearchShellKeyDown}
+        onSelectStock={handleSelectStock}
+        onRemoveHistory={removeSearchHistory}
+        onClearHistory={clearSearchHistory}
+      />
+
+      {/* ========== DASHBOARD SECTION ========== */}
+      <TradeDashboardContent
+        selectedStock={selectedStock}
+        verifiedCredentials={verifiedCredentials}
+        latestTick={latestTick}
+        recentTradeTicks={recentTradeTicks}
+        orderBook={orderBook}
+        isOrderBookLoading={isOrderBookLoading}
+        referencePrice={referencePrice}
+        currentPrice={currentPrice}
+        change={change}
+        changeRate={changeRate}
+      />
+    </div>
+  );
+}

features/trade/components/chart/StockLineChart.tsx

@@ -0,0 +1,717 @@
+"use client";
+
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import {
+  CandlestickSeries,
+  ColorType,
+  HistogramSeries,
+  createChart,
+  type IChartApi,
+  type ISeriesApi,
+  type Time,
+} from "lightweight-charts";
+import { ChevronDown } from "lucide-react";
+import { useTheme } from "next-themes";
+import { toast } from "sonner";
+import { fetchStockChart } from "@/features/trade/apis/kis-stock.api";
+import type { KisRuntimeCredentials } from "@/features/settings/store/use-kis-runtime-store";
+import type {
+  DashboardChartTimeframe,
+  DashboardRealtimeTradeTick,
+  StockCandlePoint,
+} from "@/features/trade/types/trade.types";
+import { cn } from "@/lib/utils";
+import {
+  type ChartBar,
+  formatKstCrosshairTime,
+  formatKstTickMark,
+  formatPrice,
+  formatSignedPercent,
+  isMinuteTimeframe,
+  mergeBars,
+  normalizeCandles,
+  toRealtimeTickBar,
+  upsertRealtimeBar,
+} from "./chart-utils";
+
+const UP_COLOR = "#ef4444";
+const MINUTE_SYNC_INTERVAL_MS = 30000;
+const REALTIME_STALE_THRESHOLD_MS = 12000;
+
+interface ChartPalette {
+  backgroundColor: string;
+  downColor: string;
+  volumeDownColor: string;
+  textColor: string;
+  borderColor: string;
+  gridColor: string;
+  crosshairColor: string;
+}
+
+const DEFAULT_CHART_PALETTE: ChartPalette = {
+  backgroundColor: "#ffffff",
+  downColor: "#2563eb",
+  volumeDownColor: "rgba(37, 99, 235, 0.45)",
+  textColor: "#6d28d9",
+  borderColor: "#e9d5ff",
+  gridColor: "#f3e8ff",
+  crosshairColor: "#c084fc",
+};
+
+function readCssVar(name: string, fallback: string) {
+  if (typeof window === "undefined") return fallback;
+  const value = window.getComputedStyle(document.documentElement).getPropertyValue(name).trim();
+  return value || fallback;
+}
+
+function getChartPaletteFromCssVars(themeMode: "light" | "dark"): ChartPalette {
+  const isDark = themeMode === "dark";
+  const backgroundVar = isDark
+    ? "--brand-chart-background-dark"
+    : "--brand-chart-background-light";
+  const textVar = isDark ? "--brand-chart-text-dark" : "--brand-chart-text-light";
+  const borderVar = isDark ? "--brand-chart-border-dark" : "--brand-chart-border-light";
+  const gridVar = isDark ? "--brand-chart-grid-dark" : "--brand-chart-grid-light";
+  const crosshairVar = isDark
+    ? "--brand-chart-crosshair-dark"
+    : "--brand-chart-crosshair-light";
+
+  return {
+    backgroundColor: readCssVar(backgroundVar, DEFAULT_CHART_PALETTE.backgroundColor),
+    downColor: readCssVar("--brand-chart-down", DEFAULT_CHART_PALETTE.downColor),
+    volumeDownColor: readCssVar(
+      "--brand-chart-volume-down",
+      DEFAULT_CHART_PALETTE.volumeDownColor,
+    ),
+    textColor: readCssVar(textVar, DEFAULT_CHART_PALETTE.textColor),
+    borderColor: readCssVar(borderVar, DEFAULT_CHART_PALETTE.borderColor),
+    gridColor: readCssVar(gridVar, DEFAULT_CHART_PALETTE.gridColor),
+    crosshairColor: readCssVar(
+      crosshairVar,
+      DEFAULT_CHART_PALETTE.crosshairColor,
+    ),
+  };
+}
+
+const MINUTE_TIMEFRAMES: Array<{
+  value: DashboardChartTimeframe;
+  label: string;
+}> = [
+  { value: "1m", label: "1분" },
+  { value: "30m", label: "30분" },
+  { value: "1h", label: "1시간" },
+];
+
+const PERIOD_TIMEFRAMES: Array<{
+  value: DashboardChartTimeframe;
+  label: string;
+}> = [
+  { value: "1d", label: "일" },
+  { value: "1w", label: "주" },
+];
+
+interface StockLineChartProps {
+  symbol?: string;
+  candles: StockCandlePoint[];
+  credentials?: KisRuntimeCredentials | null;
+  latestTick?: DashboardRealtimeTradeTick | null;
+}
+
+/**
+ * @description TradingView 스타일 캔들 차트를 렌더링하고, timeframe별 KIS 차트 API를 조회합니다.
+ * @see features/trade/apis/kis-stock.api.ts fetchStockChart
+ * @see lib/kis/domestic.ts getDomesticChart
+ */
+export function StockLineChart({
+  symbol,
+  candles,
+  credentials,
+  latestTick,
+}: StockLineChartProps) {
+  const { resolvedTheme } = useTheme();
+  const containerRef = useRef<HTMLDivElement | null>(null);
+  const chartRef = useRef<IChartApi | null>(null);
+  const candleSeriesRef = useRef<ISeriesApi<"Candlestick", Time> | null>(null);
+  const volumeSeriesRef = useRef<ISeriesApi<"Histogram", Time> | null>(null);
+
+  const [timeframe, setTimeframe] = useState<DashboardChartTimeframe>("1d");
+  const [isMinuteDropdownOpen, setIsMinuteDropdownOpen] = useState(false);
+  const [bars, setBars] = useState<ChartBar[]>([]);
+  const [nextCursor, setNextCursor] = useState<string | null>(null);
+  const [isLoading, setIsLoading] = useState(false);
+  const [isLoadingMore, setIsLoadingMore] = useState(false);
+  const [isChartReady, setIsChartReady] = useState(false);
+  const lastRealtimeKeyRef = useRef<string>("");
+  const lastRealtimeAppliedAtRef = useRef(0);
+  const chartPaletteRef = useRef<ChartPalette>(DEFAULT_CHART_PALETTE);
+  const renderableBarsRef = useRef<ChartBar[]>([]);
+
+  const activeThemeMode: "light" | "dark" =
+    resolvedTheme === "dark"
+      ? "dark"
+      : resolvedTheme === "light"
+        ? "light"
+        : typeof document !== "undefined" &&
+            document.documentElement.classList.contains("dark")
+          ? "dark"
+          : "light";
+
+  // 복수 이벤트에서 중복 로드를 막기 위한 ref 상태
+  const loadingMoreRef = useRef(false);
+  const loadMoreHandlerRef = useRef<() => Promise<void>>(async () => {});
+  const initialLoadCompleteRef = useRef(false);
+
+  // API 오류 시 fallback 용도로 유지
+  const latestCandlesRef = useRef(candles);
+  useEffect(() => {
+    latestCandlesRef.current = candles;
+  }, [candles]);
+
+  const latest = bars.at(-1);
+  const prevClose = bars.length > 1 ? (bars.at(-2)?.close ?? 0) : 0;
+  const change = latest ? latest.close - prevClose : 0;
+  const changeRate = prevClose > 0 ? (change / prevClose) * 100 : 0;
+
+  const renderableBars = useMemo(() => {
+    const dedup = new Map<number, ChartBar>();
+
+    for (const bar of bars) {
+      if (
+        !Number.isFinite(bar.time) ||
+        !Number.isFinite(bar.open) ||
+        !Number.isFinite(bar.high) ||
+        !Number.isFinite(bar.low) ||
+        !Number.isFinite(bar.close) ||
+        bar.close <= 0
+      ) {
+        continue;
+      }
+
+      dedup.set(bar.time, bar);
+    }
+
+    return [...dedup.values()].sort((a, b) => a.time - b.time);
+  }, [bars]);
+
+  useEffect(() => {
+    renderableBarsRef.current = renderableBars;
+  }, [renderableBars]);
+
+  /**
+   * @description lightweight-charts 시리즈 데이터에 안전한 OHLCV 값을 주입합니다.
+   * @see features/trade/components/chart/StockLineChart.tsx renderableBars useMemo
+   */
+  const setSeriesData = useCallback((nextBars: ChartBar[]) => {
+    const candleSeries = candleSeriesRef.current;
+    const volumeSeries = volumeSeriesRef.current;
+    if (!candleSeries || !volumeSeries) return;
+
+    try {
+      candleSeries.setData(
+        nextBars.map((bar) => ({
+          time: bar.time,
+          open: bar.open,
+          high: bar.high,
+          low: bar.low,
+          close: bar.close,
+        })),
+      );
+
+      volumeSeries.setData(
+        nextBars.map((bar) => ({
+          time: bar.time,
+          value: Number.isFinite(bar.volume) ? bar.volume : 0,
+          color:
+            bar.close >= bar.open
+              ? "rgba(239,68,68,0.45)"
+              : chartPaletteRef.current.volumeDownColor,
+        })),
+      );
+    } catch (error) {
+      console.error("Failed to render chart series data:", error);
+    }
+  }, []);
+
+  /**
+   * @description 좌측 스크롤 시 cursor 기반 과거 캔들을 추가 로드합니다.
+   * @see lib/kis/domestic.ts getDomesticChart cursor
+   */
+  const handleLoadMore = useCallback(async () => {
+    if (!symbol || !credentials || !nextCursor || loadingMoreRef.current) return;
+
+    loadingMoreRef.current = true;
+    setIsLoadingMore(true);
+
+    try {
+      const response = await fetchStockChart(
+        symbol,
+        timeframe,
+        credentials,
+        nextCursor,
+      );
+
+      const olderBars = normalizeCandles(response.candles, timeframe);
+      setBars((prev) => mergeBars(olderBars, prev));
+      setNextCursor(response.hasMore ? response.nextCursor : null);
+    } catch (error) {
+      const message =
+        error instanceof Error
+          ? error.message
+          : "과거 차트 데이터를 불러오지 못했습니다.";
+      toast.error(message);
+    } finally {
+      loadingMoreRef.current = false;
+      setIsLoadingMore(false);
+    }
+  }, [credentials, nextCursor, symbol, timeframe]);
+
+  useEffect(() => {
+    loadMoreHandlerRef.current = handleLoadMore;
+  }, [handleLoadMore]);
+
+  useEffect(() => {
+    lastRealtimeKeyRef.current = "";
+    lastRealtimeAppliedAtRef.current = 0;
+  }, [symbol, timeframe]);
+
+  useEffect(() => {
+    const container = containerRef.current;
+    if (!container || chartRef.current) return;
+
+    // 브랜드 색상은 globals.css의 CSS 변수에서 읽어 차트(canvas)에도 동일하게 적용합니다.
+    const palette = getChartPaletteFromCssVars(activeThemeMode);
+    chartPaletteRef.current = palette;
+
+    const chart = createChart(container, {
+      width: Math.max(container.clientWidth, 320),
+      height: Math.max(container.clientHeight, 340),
+      layout: {
+        background: { type: ColorType.Solid, color: palette.backgroundColor },
+        textColor: palette.textColor,
+        attributionLogo: true,
+      },
+      localization: {
+        locale: "ko-KR",
+        timeFormatter: formatKstCrosshairTime,
+      },
+      rightPriceScale: {
+        borderColor: palette.borderColor,
+        scaleMargins: {
+          top: 0.08,
+          bottom: 0.24,
+        },
+      },
+      grid: {
+        vertLines: { color: palette.gridColor },
+        horzLines: { color: palette.gridColor },
+      },
+      crosshair: {
+        vertLine: { color: palette.crosshairColor, width: 1, style: 2 },
+        horzLine: { color: palette.crosshairColor, width: 1, style: 2 },
+      },
+      timeScale: {
+        borderColor: palette.borderColor,
+        timeVisible: true,
+        secondsVisible: false,
+        rightOffset: 2,
+        tickMarkFormatter: formatKstTickMark,
+      },
+      handleScroll: {
+        mouseWheel: true,
+        pressedMouseMove: true,
+      },
+      handleScale: {
+        mouseWheel: true,
+        pinch: true,
+        axisPressedMouseMove: true,
+      },
+    });
+
+    const candleSeries = chart.addSeries(CandlestickSeries, {
+      upColor: UP_COLOR,
+      downColor: palette.downColor,
+      wickUpColor: UP_COLOR,
+      wickDownColor: palette.downColor,
+      borderUpColor: UP_COLOR,
+      borderDownColor: palette.downColor,
+      priceLineVisible: true,
+      lastValueVisible: true,
+    });
+
+    const volumeSeries = chart.addSeries(HistogramSeries, {
+      priceScaleId: "volume",
+      priceLineVisible: false,
+      lastValueVisible: false,
+      base: 0,
+    });
+
+    chart.priceScale("volume").applyOptions({
+      scaleMargins: {
+        top: 0.78,
+        bottom: 0,
+      },
+      borderVisible: false,
+    });
+
+    let scrollTimeout: number | undefined;
+    chart.timeScale().subscribeVisibleLogicalRangeChange((range) => {
+      if (!range || !initialLoadCompleteRef.current) return;
+      if (range.from >= 10) return;
+
+      if (scrollTimeout !== undefined) window.clearTimeout(scrollTimeout);
+      scrollTimeout = window.setTimeout(() => {
+        void loadMoreHandlerRef.current();
+      }, 250);
+    });
+
+    chartRef.current = chart;
+    candleSeriesRef.current = candleSeries;
+    volumeSeriesRef.current = volumeSeries;
+    setIsChartReady(true);
+
+    const resizeObserver = new ResizeObserver(() => {
+      chart.resize(
+        Math.max(container.clientWidth, 320),
+        Math.max(container.clientHeight, 340),
+      );
+    });
+    resizeObserver.observe(container);
+
+    const rafId = window.requestAnimationFrame(() => {
+      chart.resize(
+        Math.max(container.clientWidth, 320),
+        Math.max(container.clientHeight, 340),
+      );
+    });
+
+    return () => {
+      if (scrollTimeout !== undefined) window.clearTimeout(scrollTimeout);
+      window.cancelAnimationFrame(rafId);
+      resizeObserver.disconnect();
+      chart.remove();
+      chartRef.current = null;
+      candleSeriesRef.current = null;
+      volumeSeriesRef.current = null;
+      setIsChartReady(false);
+    };
+  }, [activeThemeMode]);
+
+  useEffect(() => {
+    const chart = chartRef.current;
+    const candleSeries = candleSeriesRef.current;
+    if (!chart || !candleSeries) return;
+
+    const palette = getChartPaletteFromCssVars(activeThemeMode);
+    chartPaletteRef.current = palette;
+
+    chart.applyOptions({
+      layout: {
+        background: { type: ColorType.Solid, color: palette.backgroundColor },
+        textColor: palette.textColor,
+      },
+      rightPriceScale: { borderColor: palette.borderColor },
+      grid: {
+        vertLines: { color: palette.gridColor },
+        horzLines: { color: palette.gridColor },
+      },
+      crosshair: {
+        vertLine: { color: palette.crosshairColor, width: 1, style: 2 },
+        horzLine: { color: palette.crosshairColor, width: 1, style: 2 },
+      },
+      timeScale: { borderColor: palette.borderColor },
+    });
+
+    candleSeries.applyOptions({
+      downColor: palette.downColor,
+      wickDownColor: palette.downColor,
+      borderDownColor: palette.downColor,
+    });
+
+    setSeriesData(renderableBarsRef.current);
+  }, [activeThemeMode, setSeriesData]);
+
+  useEffect(() => {
+    if (symbol && credentials) return;
+
+    // 인증 전/종목 미선택 상태는 overview 캔들로 fallback
+    setBars(normalizeCandles(candles, "1d"));
+    setNextCursor(null);
+  }, [candles, credentials, symbol]);
+
+  useEffect(() => {
+    if (!symbol || !credentials) return;
+
+    initialLoadCompleteRef.current = false;
+    let disposed = false;
+
+    const load = async () => {
+      setIsLoading(true);
+
+      try {
+        const firstPage = await fetchStockChart(symbol, timeframe, credentials);
+        if (disposed) return;
+
+        let mergedBars = normalizeCandles(firstPage.candles, timeframe);
+        let resolvedNextCursor = firstPage.hasMore ? firstPage.nextCursor : null;
+
+        // 분봉은 기본 3페이지까지 순차 조회해 오전 구간 누락을 줄입니다.
+        if (
+          isMinuteTimeframe(timeframe) &&
+          firstPage.hasMore &&
+          firstPage.nextCursor
+        ) {
+          let minuteCursor: string | null = firstPage.nextCursor;
+          let extraPageCount = 0;
+
+          while (minuteCursor && extraPageCount < 2) {
+            try {
+              const olderPage = await fetchStockChart(
+                symbol,
+                timeframe,
+                credentials,
+                minuteCursor,
+              );
+
+              const olderBars = normalizeCandles(olderPage.candles, timeframe);
+              mergedBars = mergeBars(olderBars, mergedBars);
+              resolvedNextCursor = olderPage.hasMore ? olderPage.nextCursor : null;
+              minuteCursor = olderPage.hasMore ? olderPage.nextCursor : null;
+              extraPageCount += 1;
+            } catch {
+              // 추가 페이지 실패는 치명적이지 않으므로 현재 데이터는 유지합니다.
+              minuteCursor = null;
+            }
+          }
+        }
+
+        setBars(mergedBars);
+        setNextCursor(resolvedNextCursor);
+
+        window.setTimeout(() => {
+          if (!disposed) initialLoadCompleteRef.current = true;
+        }, 350);
+      } catch (error) {
+        if (disposed) return;
+
+        const message =
+          error instanceof Error
+            ? error.message
+            : "차트 조회 중 오류가 발생했습니다.";
+        toast.error(message);
+
+        setBars(normalizeCandles(latestCandlesRef.current, timeframe));
+        setNextCursor(null);
+      } finally {
+        if (!disposed) setIsLoading(false);
+      }
+    };
+
+    void load();
+
+    return () => {
+      disposed = true;
+    };
+  }, [credentials, symbol, timeframe]);
+
+  useEffect(() => {
+    if (!isChartReady) return;
+
+    setSeriesData(renderableBars);
+    if (!initialLoadCompleteRef.current && renderableBars.length > 0) {
+      chartRef.current?.timeScale().fitContent();
+    }
+  }, [isChartReady, renderableBars, setSeriesData]);
+
+/**
+ * @description WebSocket 체결 틱을 현재 timeframe 캔들에 반영합니다.
+ * @see features/trade/hooks/useKisTradeWebSocket.ts latestTick
+ * @see features/trade/components/chart/chart-utils.ts toRealtimeTickBar
+ */
+  useEffect(() => {
+    if (!latestTick) return;
+    if (bars.length === 0) return;
+
+    const dedupeKey = `${timeframe}:${latestTick.tickTime}:${latestTick.price}:${latestTick.tradeVolume}`;
+    if (lastRealtimeKeyRef.current === dedupeKey) return;
+
+    const realtimeBar = toRealtimeTickBar(latestTick, timeframe);
+    if (!realtimeBar) return;
+
+    lastRealtimeKeyRef.current = dedupeKey;
+    lastRealtimeAppliedAtRef.current = Date.now();
+    setBars((prev) => upsertRealtimeBar(prev, realtimeBar));
+  }, [bars.length, latestTick, timeframe]);
+
+  /**
+   * @description 분봉(1m/30m/1h)에서는 WS 공백 상황을 대비해 최신 페이지를 주기적으로 동기화합니다.
+   * @see features/trade/apis/kis-stock.api.ts fetchStockChart
+   * @see lib/kis/domestic.ts getDomesticChart
+   */
+  useEffect(() => {
+    if (!symbol || !credentials) return;
+    if (!isMinuteTimeframe(timeframe)) return;
+
+    let disposed = false;
+
+    const syncLatestMinuteBars = async () => {
+      const now = Date.now();
+      const isRealtimeFresh =
+        now - lastRealtimeAppliedAtRef.current < REALTIME_STALE_THRESHOLD_MS;
+      if (isRealtimeFresh) return;
+
+      try {
+        const response = await fetchStockChart(symbol, timeframe, credentials);
+        if (disposed) return;
+
+        const latestPageBars = normalizeCandles(response.candles, timeframe);
+        const recentBars = latestPageBars.slice(-10);
+        if (recentBars.length === 0) return;
+
+        setBars((prev) => {
+          const merged = mergeBars(prev, recentBars);
+          return areBarsEqual(prev, merged) ? prev : merged;
+        });
+      } catch {
+        // 폴링 실패는 치명적이지 않으므로 조용히 다음 주기에서 재시도합니다.
+      }
+    };
+
+    const intervalId = window.setInterval(() => {
+      void syncLatestMinuteBars();
+    }, MINUTE_SYNC_INTERVAL_MS);
+
+    return () => {
+      disposed = true;
+      window.clearInterval(intervalId);
+    };
+  }, [credentials, symbol, timeframe]);
+
+  const statusMessage = (() => {
+    if (isLoading && bars.length === 0) {
+      return "차트 데이터를 불러오는 중입니다.";
+    }
+    if (bars.length === 0) {
+      return "차트 데이터가 없습니다.";
+    }
+    if (renderableBars.length === 0) {
+      return "차트 데이터 형식이 올바르지 않습니다.";
+    }
+    return null;
+  })();
+
+  return (
+    <div className="flex h-full min-h-[340px] flex-col bg-white dark:bg-brand-900/10">
+      {/* ========== CHART TOOLBAR ========== */}
+      <div className="flex flex-wrap items-center justify-between gap-2 border-b border-brand-100 bg-muted/20 px-2 py-2 sm:px-3 dark:border-brand-800/45 dark:bg-brand-900/35">
+        <div className="flex flex-wrap items-center gap-1 text-xs sm:text-sm">
+          <div className="relative">
+            <button
+              type="button"
+              onClick={() => setIsMinuteDropdownOpen((prev) => !prev)}
+              onBlur={() =>
+                window.setTimeout(() => setIsMinuteDropdownOpen(false), 200)
+              }
+              className={cn(
+                "relative flex items-center gap-1 border-b-2 border-transparent px-2 py-1.5 text-muted-foreground transition-colors hover:text-foreground dark:text-brand-100/72 dark:hover:text-brand-50",
+                MINUTE_TIMEFRAMES.some((item) => item.value === timeframe) &&
+                  "border-brand-400 font-semibold text-foreground dark:text-brand-50",
+              )}
+            >
+              {MINUTE_TIMEFRAMES.find((item) => item.value === timeframe)
+                ?.label ?? "분봉"}
+              <ChevronDown className="h-3 w-3" />
+            </button>
+
+            {isMinuteDropdownOpen && (
+              <div className="absolute left-0 top-full z-10 mt-1 rounded border border-brand-100 bg-white shadow-lg dark:border-brand-700/45 dark:bg-[#1a1624]">
+                {MINUTE_TIMEFRAMES.map((item) => (
+                  <button
+                    key={item.value}
+                    type="button"
+                    onClick={() => {
+                      setTimeframe(item.value);
+                      setIsMinuteDropdownOpen(false);
+                    }}
+                    className={cn(
+                      "block w-full whitespace-nowrap px-3 py-1.5 text-left hover:bg-brand-50 dark:text-brand-100 dark:hover:bg-brand-800/35",
+                      timeframe === item.value &&
+                        "bg-brand-50 font-semibold text-brand-700 dark:bg-brand-700/30 dark:text-brand-100",
+                    )}
+                  >
+                    {item.label}
+                  </button>
+                ))}
+              </div>
+            )}
+          </div>
+
+          {PERIOD_TIMEFRAMES.map((item) => (
+            <button
+              key={item.value}
+              type="button"
+              onClick={() => setTimeframe(item.value)}
+              className={cn(
+                "relative border-b-2 border-transparent px-2 py-1.5 text-muted-foreground transition-colors hover:text-foreground dark:text-brand-100/72 dark:hover:text-brand-50",
+                timeframe === item.value &&
+                  "border-brand-400 font-semibold text-foreground dark:text-brand-50",
+              )}
+            >
+              {item.label}
+            </button>
+          ))}
+
+          {isLoadingMore && (
+            <span className="ml-2 text-[11px] text-muted-foreground dark:text-brand-200/70">
+              과거 데이터 로딩 중...
+            </span>
+          )}
+        </div>
+
+        <div className="text-[11px] text-muted-foreground dark:text-brand-100/85 sm:text-xs">
+          O {formatPrice(latest?.open ?? 0)} H {formatPrice(latest?.high ?? 0)} L{" "}
+          {formatPrice(latest?.low ?? 0)} C{" "}
+          <span
+            className={cn(
+              change >= 0 ? "text-red-600" : "text-blue-600 dark:text-blue-400",
+            )}
+          >
+            {formatPrice(latest?.close ?? 0)} ({formatSignedPercent(changeRate)})
+          </span>
+        </div>
+      </div>
+
+      {/* ========== CHART BODY ========== */}
+      <div className="relative min-h-0 flex-1 overflow-hidden">
+        <div ref={containerRef} className="h-full w-full" />
+
+        {statusMessage && (
+          <div className="absolute inset-0 flex items-center justify-center bg-white/80 text-sm text-muted-foreground dark:bg-background/90 dark:text-brand-100/80">
+            {statusMessage}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+
+function areBarsEqual(left: ChartBar[], right: ChartBar[]) {
+  if (left.length !== right.length) return false;
+
+  for (let index = 0; index < left.length; index += 1) {
+    const lhs = left[index];
+    const rhs = right[index];
+    if (!lhs || !rhs) return false;
+    if (
+      lhs.time !== rhs.time ||
+      lhs.open !== rhs.open ||
+      lhs.high !== rhs.high ||
+      lhs.low !== rhs.low ||
+      lhs.close !== rhs.close ||
+      lhs.volume !== rhs.volume
+    ) {
+      return false;
+    }
+  }
+
+  return true;
+}

features/trade/components/chart/chart-utils.ts

@@ -0,0 +1,350 @@
+/**
+ * @file chart-utils.ts
+ * @description StockLineChart에서 사용하는 유틸리티 함수 모음
+ */
+
+import type {
+  TickMarkType,
+  Time,
+  UTCTimestamp,
+} from "lightweight-charts";
+import type {
+  DashboardChartTimeframe,
+  DashboardRealtimeTradeTick,
+  StockCandlePoint,
+} from "@/features/trade/types/trade.types";
+
+const KRW_FORMATTER = new Intl.NumberFormat("ko-KR");
+const KST_TIME_ZONE = "Asia/Seoul";
+const KST_TIME_FORMATTER = new Intl.DateTimeFormat("ko-KR", {
+  timeZone: KST_TIME_ZONE,
+  hour: "2-digit",
+  minute: "2-digit",
+  hour12: false,
+});
+const KST_TIME_SECONDS_FORMATTER = new Intl.DateTimeFormat("ko-KR", {
+  timeZone: KST_TIME_ZONE,
+  hour: "2-digit",
+  minute: "2-digit",
+  second: "2-digit",
+  hour12: false,
+});
+const KST_DATE_FORMATTER = new Intl.DateTimeFormat("ko-KR", {
+  timeZone: KST_TIME_ZONE,
+  month: "2-digit",
+  day: "2-digit",
+});
+const KST_MONTH_FORMATTER = new Intl.DateTimeFormat("ko-KR", {
+  timeZone: KST_TIME_ZONE,
+  month: "short",
+});
+const KST_YEAR_FORMATTER = new Intl.DateTimeFormat("ko-KR", {
+  timeZone: KST_TIME_ZONE,
+  year: "numeric",
+});
+const KST_CROSSHAIR_FORMATTER = new Intl.DateTimeFormat("ko-KR", {
+  timeZone: KST_TIME_ZONE,
+  month: "2-digit",
+  day: "2-digit",
+  hour: "2-digit",
+  minute: "2-digit",
+  hour12: false,
+});
+
+// ─── 타입 ──────────────────────────────────────────────────
+
+export type ChartBar = {
+  time: UTCTimestamp;
+  open: number;
+  high: number;
+  low: number;
+  close: number;
+  volume: number;
+};
+
+// ─── StockCandlePoint → ChartBar 변환 ─────────────────────
+
+/**
+ * candles 배열을 ChartBar 배열로 정규화 (무효값 필터 + 병합 + 정렬)
+ */
+export function normalizeCandles(
+  candles: StockCandlePoint[],
+  timeframe: DashboardChartTimeframe,
+): ChartBar[] {
+  const rows = candles
+    .map((c) => convertCandleToBar(c, timeframe))
+    .filter((b): b is ChartBar => Boolean(b));
+  return mergeBars([], rows);
+}
+
+/**
+ * 단일 candle → ChartBar 변환. 유효하지 않으면 null
+ */
+export function convertCandleToBar(
+  candle: StockCandlePoint,
+  timeframe: DashboardChartTimeframe,
+): ChartBar | null {
+  const close = candle.close ?? candle.price;
+  if (!Number.isFinite(close) || close <= 0) return null;
+
+  const open = candle.open ?? close;
+  const high = candle.high ?? Math.max(open, close);
+  const low = candle.low ?? Math.min(open, close);
+  const volume = candle.volume ?? 0;
+  const time = resolveBarTimestamp(candle, timeframe);
+  if (!time) return null;
+
+  return {
+    time,
+    open,
+    high: Math.max(high, open, close),
+    low: Math.min(low, open, close),
+    close,
+    volume,
+  };
+}
+
+// ─── 타임스탬프 해석/정렬 ─────────────────────────────────
+
+function resolveBarTimestamp(
+  candle: StockCandlePoint,
+  timeframe: DashboardChartTimeframe,
+): UTCTimestamp | null {
+  // timestamp 필드가 있으면 우선 사용
+  if (
+    typeof candle.timestamp === "number" &&
+    Number.isFinite(candle.timestamp)
+  ) {
+    return alignTimestamp(candle.timestamp, timeframe);
+  }
+
+  const text = typeof candle.time === "string" ? candle.time.trim() : "";
+  if (!text) return null;
+
+  // "MM/DD" 형식 (일봉)
+  if (/^\d{2}\/\d{2}$/.test(text)) {
+    const [mm, dd] = text.split("/");
+    const year = new Date().getFullYear();
+    const ts = Math.floor(
+      new Date(`${year}-${mm}-${dd}T09:00:00+09:00`).getTime() / 1000,
+    );
+    return alignTimestamp(ts, timeframe);
+  }
+
+  // "HH:MM" 또는 "HH:MM:SS" 형식 (분봉)
+  if (/^\d{2}:\d{2}(:\d{2})?$/.test(text)) {
+    const [hh, mi, ss] = text.split(":");
+    const now = new Date();
+    const y = now.getFullYear();
+    const m = `${now.getMonth() + 1}`.padStart(2, "0");
+    const d = `${now.getDate()}`.padStart(2, "0");
+    const ts = Math.floor(
+      new Date(`${y}-${m}-${d}T${hh}:${mi}:${ss ?? "00"}+09:00`).getTime() /
+        1000,
+    );
+    return alignTimestamp(ts, timeframe);
+  }
+
+  return null;
+}
+
+/**
+ * 타임스탬프를 타임프레임 버킷 경계에 정렬
+ * - 1m: 초/밀리초를 제거해 분 경계에 정렬
+ * - 30m/1h: 분 단위를 버킷에 정렬
+ * - 1d: 00:00:00
+ * - 1w: 월요일 00:00:00
+ */
+function alignTimestamp(
+  timestamp: number,
+  timeframe: DashboardChartTimeframe,
+): UTCTimestamp {
+  const d = new Date(timestamp * 1000);
+
+  if (timeframe === "1m") {
+    d.setUTCSeconds(0, 0);
+  } else if (timeframe === "30m" || timeframe === "1h") {
+    const bucket = timeframe === "30m" ? 30 : 60;
+    d.setUTCMinutes(Math.floor(d.getUTCMinutes() / bucket) * bucket, 0, 0);
+  } else if (timeframe === "1d") {
+    d.setUTCHours(0, 0, 0, 0);
+  } else if (timeframe === "1w") {
+    const day = d.getUTCDay();
+    d.setUTCDate(d.getUTCDate() + (day === 0 ? -6 : 1 - day));
+    d.setUTCHours(0, 0, 0, 0);
+  }
+
+  return Math.floor(d.getTime() / 1000) as UTCTimestamp;
+}
+
+// ─── 봉 병합 ──────────────────────────────────────────────
+
+/**
+ * 두 ChartBar 배열을 시간 기준으로 병합. 같은 시간대는 OHLCV 통합
+ */
+export function mergeBars(left: ChartBar[], right: ChartBar[]): ChartBar[] {
+  const map = new Map<number, ChartBar>();
+  for (const bar of [...left, ...right]) {
+    const prev = map.get(bar.time);
+    if (!prev) {
+      map.set(bar.time, bar);
+      continue;
+    }
+    map.set(bar.time, {
+      time: bar.time,
+      open: prev.open,
+      high: Math.max(prev.high, bar.high),
+      low: Math.min(prev.low, bar.low),
+      close: bar.close,
+      volume: Math.max(prev.volume, bar.volume),
+    });
+  }
+  return [...map.values()].sort((a, b) => a.time - b.time);
+}
+
+/**
+ * 실시간 봉 업데이트: 같은 시간이면 기존 봉에 병합, 새 시간이면 추가
+ */
+export function upsertRealtimeBar(
+  prev: ChartBar[],
+  incoming: ChartBar,
+): ChartBar[] {
+  if (prev.length === 0) return [incoming];
+  const last = prev[prev.length - 1];
+
+  if (incoming.time > last.time) return [...prev, incoming];
+  if (incoming.time < last.time) return prev;
+
+  return [
+    ...prev.slice(0, -1),
+    {
+      time: last.time,
+      open: last.open,
+      high: Math.max(last.high, incoming.high),
+      low: Math.min(last.low, incoming.low),
+      close: incoming.close,
+      volume: Math.max(last.volume, incoming.volume),
+    },
+  ];
+}
+
+/**
+ * @description 실시간 체결 틱을 차트용 ChartBar로 변환합니다. (KST 날짜 + tickTime 기준)
+ * @see features/trade/hooks/useKisTradeWebSocket.ts latestTick
+ * @see features/trade/components/chart/StockLineChart.tsx 실시간 캔들 반영
+ */
+export function toRealtimeTickBar(
+  tick: DashboardRealtimeTradeTick,
+  timeframe: DashboardChartTimeframe,
+  now = new Date(),
+): ChartBar | null {
+  if (!Number.isFinite(tick.price) || tick.price <= 0) return null;
+
+  const hhmmss = normalizeTickTime(tick.tickTime);
+  if (!hhmmss) return null;
+
+  const ymd = getKstYmd(now);
+  const baseTimestamp = toKstTimestamp(ymd, hhmmss);
+  const alignedTimestamp = alignTimestamp(baseTimestamp, timeframe);
+  const minuteFrame = isMinuteTimeframe(timeframe);
+
+  return {
+    time: alignedTimestamp,
+    open: minuteFrame ? tick.price : Math.max(tick.open, tick.price),
+    high: minuteFrame ? tick.price : Math.max(tick.high, tick.price),
+    low: minuteFrame ? tick.price : Math.min(tick.low || tick.price, tick.price),
+    close: tick.price,
+    volume: minuteFrame
+      ? Math.max(tick.tradeVolume, 0)
+      : Math.max(tick.accumulatedVolume, 0),
+  };
+}
+
+/**
+ * @description lightweight-charts X축 라벨을 KST 기준으로 강제 포맷합니다.
+ * @see features/trade/components/chart/StockLineChart.tsx createChart options.timeScale.tickMarkFormatter
+ */
+export function formatKstTickMark(time: Time, tickMarkType: TickMarkType) {
+  const date = toDateFromChartTime(time);
+  if (!date) return null;
+
+  if (tickMarkType === 0) return KST_YEAR_FORMATTER.format(date);
+  if (tickMarkType === 1) return KST_MONTH_FORMATTER.format(date);
+  if (tickMarkType === 2) return KST_DATE_FORMATTER.format(date);
+  if (tickMarkType === 4) return KST_TIME_SECONDS_FORMATTER.format(date);
+  return KST_TIME_FORMATTER.format(date);
+}
+
+/**
+ * @description crosshair 시간 라벨을 KST로 포맷합니다.
+ * @see features/trade/components/chart/StockLineChart.tsx createChart options.localization.timeFormatter
+ */
+export function formatKstCrosshairTime(time: Time) {
+  const date = toDateFromChartTime(time);
+  if (!date) return "";
+  return KST_CROSSHAIR_FORMATTER.format(date);
+}
+
+// ─── 포맷터 ───────────────────────────────────────────────
+
+export function formatPrice(value: number) {
+  return KRW_FORMATTER.format(Math.round(value));
+}
+
+export function formatSignedPercent(value: number) {
+  const sign = value > 0 ? "+" : "";
+  return `${sign}${value.toFixed(2)}%`;
+}
+
+/**
+ * 분봉 타임프레임인지 판별
+ */
+export function isMinuteTimeframe(tf: DashboardChartTimeframe) {
+  return tf === "1m" || tf === "30m" || tf === "1h";
+}
+
+function normalizeTickTime(value?: string) {
+  if (!value) return null;
+  const normalized = value.trim();
+  return /^\d{6}$/.test(normalized) ? normalized : null;
+}
+
+function getKstYmd(now = new Date()) {
+  const parts = new Intl.DateTimeFormat("en-CA", {
+    timeZone: KST_TIME_ZONE,
+    year: "numeric",
+    month: "2-digit",
+    day: "2-digit",
+  }).formatToParts(now);
+
+  const map = new Map(parts.map((part) => [part.type, part.value]));
+  return `${map.get("year")}${map.get("month")}${map.get("day")}`;
+}
+
+function toKstTimestamp(yyyymmdd: string, hhmmss: string) {
+  const y = Number(yyyymmdd.slice(0, 4));
+  const m = Number(yyyymmdd.slice(4, 6));
+  const d = Number(yyyymmdd.slice(6, 8));
+  const hh = Number(hhmmss.slice(0, 2));
+  const mm = Number(hhmmss.slice(2, 4));
+  const ss = Number(hhmmss.slice(4, 6));
+  return Math.floor(Date.UTC(y, m - 1, d, hh - 9, mm, ss) / 1000);
+}
+
+function toDateFromChartTime(time: Time) {
+  if (typeof time === "number" && Number.isFinite(time)) {
+    return new Date(time * 1000);
+  }
+
+  if (typeof time === "string") {
+    const parsed = Date.parse(time);
+    return Number.isFinite(parsed) ? new Date(parsed) : null;
+  }
+
+  if (time && typeof time === "object" && "year" in time) {
+    const { year, month, day } = time;
+    return new Date(Date.UTC(year, month - 1, day));
+  }
+
+  return null;
+}

features/trade/components/details/StockOverviewCard.tsx

@@ -0,0 +1,143 @@
+import { Activity, ShieldCheck } from "lucide-react";
+import {
+  Card,
+  CardContent,
+  CardHeader,
+  CardTitle,
+  CardDescription,
+} from "@/components/ui/card";
+import { StockLineChart } from "@/features/trade/components/chart/StockLineChart";
+import { StockPriceBadge } from "@/features/trade/components/details/StockPriceBadge";
+import type {
+  DashboardStockItem,
+  DashboardPriceSource,
+  DashboardMarketPhase,
+} from "@/features/trade/types/trade.types";
+
+const PRICE_FORMATTER = new Intl.NumberFormat("ko-KR");
+function formatVolume(value: number) {
+  return `${PRICE_FORMATTER.format(value)}주`;
+}
+
+function getPriceSourceLabel(
+  source: DashboardPriceSource,
+  marketPhase: DashboardMarketPhase,
+) {
+  switch (source) {
+    case "inquire-overtime-price":
+      return "시간외 현재가(inquire-overtime-price)";
+    case "inquire-ccnl":
+      return marketPhase === "afterHours"
+        ? "체결가 폴백(inquire-ccnl)"
+        : "체결가(inquire-ccnl)";
+    default:
+      return "현재가(inquire-price)";
+  }
+}
+
+function PriceStat({ label, value }: { label: string; value: string }) {
+  return (
+    <div className="rounded-xl border border-border/70 bg-background/70 p-3">
+      <p className="text-xs text-muted-foreground">{label}</p>
+      <p className="mt-1 text-sm font-semibold text-foreground">{value}</p>
+    </div>
+  );
+}
+
+interface StockOverviewCardProps {
+  stock: DashboardStockItem;
+  priceSource: DashboardPriceSource;
+  marketPhase: DashboardMarketPhase;
+  isRealtimeConnected: boolean;
+  realtimeTrId: string | null;
+  lastRealtimeTickAt: number | null;
+}
+
+export function StockOverviewCard({
+  stock,
+  priceSource,
+  marketPhase,
+  isRealtimeConnected,
+  realtimeTrId,
+  lastRealtimeTickAt,
+}: StockOverviewCardProps) {
+  const apiPriceSourceLabel = getPriceSourceLabel(priceSource, marketPhase);
+  const effectivePriceSourceLabel =
+    isRealtimeConnected && lastRealtimeTickAt
+      ? `실시간 체결(WebSocket ${realtimeTrId || ""})`
+      : apiPriceSourceLabel;
+
+  return (
+    <Card className="overflow-hidden border-brand-200">
+      <CardHeader className="border-b border-border/50 bg-muted/30 pb-4">
+        <div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
+          <div>
+            <div className="flex items-center gap-2">
+              <CardTitle className="text-xl font-bold">{stock.name}</CardTitle>
+              <span className="rounded-full bg-muted px-2 py-0.5 text-xs font-medium text-muted-foreground">
+                {stock.symbol}
+              </span>
+              <span className="rounded-full border border-brand-200 bg-brand-50 px-2 py-0.5 text-xs font-medium text-brand-700">
+                {stock.market}
+              </span>
+            </div>
+            <CardDescription className="mt-1 flex items-center gap-1.5">
+              <span>{effectivePriceSourceLabel}</span>
+              {isRealtimeConnected && (
+                <span className="inline-flex items-center gap-1 rounded bg-brand-100 px-1.5 py-0.5 text-xs font-medium text-brand-700">
+                  <Activity className="h-3 w-3" />
+                  실시간
+                </span>
+              )}
+            </CardDescription>
+          </div>
+
+          <div className="flex flex-col items-end gap-1">
+            <StockPriceBadge
+              currentPrice={stock.currentPrice}
+              change={stock.change}
+              changeRate={stock.changeRate}
+            />
+          </div>
+        </div>
+      </CardHeader>
+      <CardContent className="p-0">
+        <div className="grid border-b border-border/50 lg:grid-cols-3">
+          <div className="col-span-2 border-r border-border/50">
+            {/* Chart Area */}
+            <div className="p-6">
+              <StockLineChart candles={stock.candles} />
+            </div>
+          </div>
+          <div className="col-span-1 bg-muted/10 p-6">
+            <div className="mb-4 flex items-center gap-2 text-sm font-semibold text-foreground/80">
+              <ShieldCheck className="h-4 w-4 text-brand-600" />
+              주요 시세 정보
+            </div>
+            <div className="grid grid-cols-2 gap-3">
+              <PriceStat
+                label="시가"
+                value={`${PRICE_FORMATTER.format(stock.open)}원`}
+              />
+              <PriceStat
+                label="고가"
+                value={`${PRICE_FORMATTER.format(stock.high)}원`}
+              />
+              <PriceStat
+                label="저가"
+                value={`${PRICE_FORMATTER.format(stock.low)}원`}
+              />
+              <PriceStat
+                label="전일종가"
+                value={`${PRICE_FORMATTER.format(stock.prevClose)}원`}
+              />
+              <div className="col-span-2">
+                <PriceStat label="거래량" value={formatVolume(stock.volume)} />
+              </div>
+            </div>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

features/trade/components/details/StockPriceBadge.tsx

@@ -0,0 +1,48 @@
+import { TrendingDown, TrendingUp } from "lucide-react";
+import { cn } from "@/lib/utils";
+
+const PRICE_FORMATTER = new Intl.NumberFormat("ko-KR");
+function formatPrice(value: number) {
+  return `${PRICE_FORMATTER.format(value)}원`;
+}
+
+interface StockPriceBadgeProps {
+  currentPrice: number;
+  change: number;
+  changeRate: number;
+}
+
+export function StockPriceBadge({
+  currentPrice,
+  change,
+  changeRate,
+}: StockPriceBadgeProps) {
+  const isPositive = change >= 0;
+  const ChangeIcon = isPositive ? TrendingUp : TrendingDown;
+  const changeColor = isPositive ? "text-red-500" : "text-brand-600";
+  const changeSign = isPositive ? "+" : "";
+
+  return (
+    <div className="flex items-baseline gap-2">
+      <span className={cn("text-3xl font-bold", changeColor)}>
+        {formatPrice(currentPrice)}
+      </span>
+      <div
+        className={cn(
+          "flex items-center gap-1 text-sm font-medium",
+          changeColor,
+        )}
+      >
+        <ChangeIcon className="h-4 w-4" />
+        <span>
+          {changeSign}
+          {PRICE_FORMATTER.format(change)}원
+        </span>
+        <span>
+          ({changeSign}
+          {changeRate.toFixed(2)}%)
+        </span>
+      </div>
+    </div>
+  );
+}

features/trade/components/guards/TradeAccessGate.tsx

@@ -0,0 +1,36 @@
+import Link from "next/link";
+import { Button } from "@/components/ui/button";
+
+interface TradeAccessGateProps {
+  canTrade: boolean;
+}
+
+/**
+ * @description KIS 인증 여부에 따라 트레이드 화면 접근 가이드를 렌더링합니다.
+ * @see features/trade/components/TradeContainer.tsx TradeContainer의 인증 가드 UI를 분리합니다.
+ * @see app/(main)/settings/page.tsx 미인증 사용자를 설정 페이지로 이동시킵니다.
+ */
+export function TradeAccessGate({ canTrade }: TradeAccessGateProps) {
+  if (canTrade) return null;
+
+  return (
+    <div className="flex h-full items-center justify-center p-6">
+      <section className="w-full max-w-xl rounded-2xl border border-brand-200 bg-background p-6 shadow-sm dark:border-brand-800/45 dark:bg-brand-900/18">
+        {/* ========== UNVERIFIED NOTICE ========== */}
+        <h2 className="text-lg font-semibold text-foreground">
+          트레이딩을 시작하려면 한국투자증권 연결이 필요합니다.
+        </h2>
+        <p className="mt-2 text-sm text-muted-foreground">
+          설정 페이지에서 앱키, 앱시크릿키, 계좌번호를 입력하고 연결을 완료해 주세요.
+        </p>
+
+        {/* ========== ACTION ========== */}
+        <div className="mt-4">
+          <Button asChild className="bg-brand-600 hover:bg-brand-700">
+            <Link href="/settings">설정 페이지로 이동</Link>
+          </Button>
+        </div>
+      </section>
+    </div>
+  );
+}

features/trade/components/header/StockHeader.tsx

@@ -0,0 +1,89 @@
+// import { Badge } from "@/components/ui/badge";
+import { Separator } from "@/components/ui/separator";
+import { DashboardStockItem } from "@/features/trade/types/trade.types";
+import { cn } from "@/lib/utils";
+
+interface StockHeaderProps {
+  stock: DashboardStockItem;
+  price: string;
+  change: string;
+  changeRate: string;
+  high?: string;
+  low?: string;
+  volume?: string;
+}
+
+export function StockHeader({
+  stock,
+  price,
+  change,
+  changeRate,
+  high,
+  low,
+  volume,
+}: StockHeaderProps) {
+  const isRise = changeRate.startsWith("+") || parseFloat(changeRate) > 0;
+  const isFall = changeRate.startsWith("-") || parseFloat(changeRate) < 0;
+  const colorClass = isRise
+    ? "text-red-500"
+    : isFall
+      ? "text-blue-600 dark:text-blue-400"
+      : "text-foreground";
+
+  return (
+    <div className="bg-white px-3 py-2 dark:bg-brand-900/22 sm:px-4 sm:py-3">
+      {/* ========== STOCK SUMMARY ========== */}
+      <div className="flex items-start justify-between gap-3">
+        <div className="min-w-0">
+          <h1 className="truncate text-lg font-bold leading-tight text-foreground dark:text-brand-50 sm:text-xl">
+            {stock.name}
+          </h1>
+          <span className="mt-0.5 block text-xs text-muted-foreground dark:text-brand-100/70 sm:text-sm">
+            {stock.symbol}/{stock.market}
+          </span>
+        </div>
+
+        <div className={cn("shrink-0 text-right", colorClass)}>
+          <span className="block text-2xl font-bold tracking-tight">{price}</span>
+          <span className="text-xs font-medium sm:text-sm">
+            {changeRate}% <span className="ml-1 text-[11px] sm:text-xs">{change}</span>
+          </span>
+        </div>
+      </div>
+
+      {/* ========== STATS ========== */}
+      <div className="mt-2 grid grid-cols-3 gap-2 text-xs md:hidden">
+        <div className="rounded-md bg-muted/40 px-2 py-1.5 dark:border dark:border-brand-800/45 dark:bg-brand-900/25">
+          <p className="text-[11px] text-muted-foreground dark:text-brand-100/70">고가</p>
+          <p className="font-medium text-red-500">{high || "--"}</p>
+        </div>
+        <div className="rounded-md bg-muted/40 px-2 py-1.5 dark:border dark:border-brand-800/45 dark:bg-brand-900/25">
+          <p className="text-[11px] text-muted-foreground dark:text-brand-100/70">저가</p>
+          <p className="font-medium text-blue-600 dark:text-blue-400">{low || "--"}</p>
+        </div>
+        <div className="rounded-md bg-muted/40 px-2 py-1.5 dark:border dark:border-brand-800/45 dark:bg-brand-900/25">
+          <p className="text-[11px] text-muted-foreground dark:text-brand-100/70">거래량(24H)</p>
+          <p className="font-medium">{volume || "--"}</p>
+        </div>
+      </div>
+
+      <Separator className="mt-2 md:hidden" />
+
+      {/* ========== DESKTOP STATS ========== */}
+      <div className="hidden items-center justify-end gap-6 pt-1 text-sm md:flex">
+        <div className="flex flex-col items-end">
+          <span className="text-muted-foreground text-xs dark:text-brand-100/70">고가</span>
+          <span className="font-medium text-red-500">{high || "--"}</span>
+        </div>
+        <div className="flex flex-col items-end">
+          <span className="text-muted-foreground text-xs dark:text-brand-100/70">저가</span>
+          <span className="font-medium text-blue-600 dark:text-blue-400">{low || "--"}</span>
+        </div>
+        <div className="flex flex-col items-end">
+          <span className="text-muted-foreground text-xs dark:text-brand-100/70">거래량(24H)</span>
+          <span className="font-medium">{volume || "--"}</span>
+        </div>
+      </div>
+    </div>
+  );
+}

features/trade/components/layout/DashboardLayout.tsx

@@ -0,0 +1,73 @@
+import { ReactNode } from "react";
+import { cn } from "@/lib/utils";
+
+interface DashboardLayoutProps {
+  header: ReactNode;
+  chart: ReactNode;
+  orderBook: ReactNode;
+  orderForm: ReactNode;
+  className?: string;
+}
+
+export function DashboardLayout({
+  header,
+  chart,
+  orderBook,
+  orderForm,
+  className,
+}: DashboardLayoutProps) {
+  return (
+    <div
+      className={cn(
+        "flex flex-col bg-background dark:bg-[linear-gradient(135deg,rgba(53,35,86,0.18),rgba(13,13,20,0.98))]",
+        // Mobile: Scrollable page height
+        "min-h-[calc(100vh-64px)]",
+        // Desktop: Fixed height, no window scroll
+        "xl:h-[calc(100vh-64px)] xl:overflow-hidden",
+        className,
+      )}
+    >
+      {/* 1. Header Area */}
+      <div className="flex-none border-b border-brand-100 bg-white dark:border-brand-800/45 dark:bg-brand-900/22">
+        {header}
+      </div>
+
+      {/* 2. Main Content Area */}
+      <div
+        className={cn(
+          "flex flex-1 flex-col",
+          // Mobile: Allow content to flow naturally with spacing
+          "overflow-visible pb-4 gap-4",
+          // Desktop: Internal scrolling, horizontal layout, no page spacing
+          "xl:overflow-hidden xl:flex-row xl:pb-0 xl:gap-0",
+        )}
+      >
+        {/* Left Column: Chart & Info */}
+        <div
+          className={cn(
+            "flex flex-col border-border dark:border-brand-800/45",
+            // Mobile: Fixed height for chart to ensure visibility
+            "h-[320px] flex-none border-b sm:h-[360px]",
+            // Desktop: Fill remaining space, remove bottom border, add right border
+            "xl:flex-1 xl:h-auto xl:min-h-0 xl:min-w-0 xl:border-b-0 xl:border-r",
+          )}
+        >
+          <div className="flex-1 min-h-0">{chart}</div>
+          {/* Future: Transaction History / Market Depth can go here */}
+        </div>
+
+        {/* Right Column: Order Book & Order Form */}
+        <div className="flex min-h-0 w-full flex-none flex-col bg-background dark:bg-brand-900/12 xl:w-[460px] xl:pr-2 2xl:w-[500px]">
+          {/* Top: Order Book (Hoga) */}
+          <div className="h-[390px] flex-none overflow-hidden border-t border-border dark:border-brand-800/45 sm:h-[430px] xl:min-h-0 xl:flex-1 xl:h-auto xl:border-t-0 xl:border-b">
+            {orderBook}
+          </div>
+          {/* Bottom: Order Form */}
+          <div className="flex-none h-auto sm:h-auto xl:h-[380px]">
+            {orderForm}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

features/trade/components/layout/TradeDashboardContent.tsx

@@ -0,0 +1,99 @@
+import type { KisRuntimeCredentials } from "@/features/settings/store/use-kis-runtime-store";
+import { StockLineChart } from "@/features/trade/components/chart/StockLineChart";
+import { StockHeader } from "@/features/trade/components/header/StockHeader";
+import { DashboardLayout } from "@/features/trade/components/layout/DashboardLayout";
+import { OrderForm } from "@/features/trade/components/order/OrderForm";
+import { OrderBook } from "@/features/trade/components/orderbook/OrderBook";
+import type {
+  DashboardRealtimeTradeTick,
+  DashboardStockItem,
+  DashboardStockOrderBookResponse,
+} from "@/features/trade/types/trade.types";
+import { cn } from "@/lib/utils";
+
+interface TradeDashboardContentProps {
+  selectedStock: DashboardStockItem | null;
+  verifiedCredentials: KisRuntimeCredentials | null;
+  latestTick: DashboardRealtimeTradeTick | null;
+  recentTradeTicks: DashboardRealtimeTradeTick[];
+  orderBook: DashboardStockOrderBookResponse | null;
+  isOrderBookLoading: boolean;
+  referencePrice?: number;
+  currentPrice?: number;
+  change?: number;
+  changeRate?: number;
+}
+
+/**
+ * @description 트레이드 본문(헤더/차트/호가/주문)을 조합해서 렌더링합니다.
+ * @see features/trade/components/TradeContainer.tsx TradeContainer가 화면 조합 코드를 단순화하기 위해 사용합니다.
+ * @see features/trade/components/layout/DashboardLayout.tsx 실제 4분할 레이아웃은 DashboardLayout에서 처리합니다.
+ */
+export function TradeDashboardContent({
+  selectedStock,
+  verifiedCredentials,
+  latestTick,
+  recentTradeTicks,
+  orderBook,
+  isOrderBookLoading,
+  referencePrice,
+  currentPrice,
+  change,
+  changeRate,
+}: TradeDashboardContentProps) {
+  return (
+    <div
+      className={cn(
+        "transition-opacity duration-200 h-full flex-1 min-h-0 overflow-x-hidden",
+        !selectedStock && "opacity-20 pointer-events-none",
+      )}
+    >
+      {/* ========== DASHBOARD LAYOUT ========== */}
+      <DashboardLayout
+        header={
+          selectedStock ? (
+            <StockHeader
+              stock={selectedStock}
+              price={currentPrice?.toLocaleString() ?? "0"}
+              change={change?.toLocaleString() ?? "0"}
+              changeRate={changeRate?.toFixed(2) ?? "0.00"}
+              high={latestTick ? latestTick.high.toLocaleString() : undefined}
+              low={latestTick ? latestTick.low.toLocaleString() : undefined}
+              volume={
+                latestTick ? latestTick.accumulatedVolume.toLocaleString() : undefined
+              }
+            />
+          ) : null
+        }
+        chart={
+          selectedStock ? (
+            <div className="p-0 h-full flex flex-col">
+              <StockLineChart
+                symbol={selectedStock.symbol}
+                candles={selectedStock.candles}
+                credentials={verifiedCredentials}
+                latestTick={latestTick}
+              />
+            </div>
+          ) : (
+            <div className="h-full flex items-center justify-center text-muted-foreground">
+              차트 영역
+            </div>
+          )
+        }
+        orderBook={
+          <OrderBook
+            symbol={selectedStock?.symbol}
+            referencePrice={referencePrice}
+            currentPrice={currentPrice}
+            latestTick={latestTick}
+            recentTicks={recentTradeTicks}
+            orderBook={orderBook}
+            isLoading={isOrderBookLoading}
+          />
+        }
+        orderForm={<OrderForm stock={selectedStock ?? undefined} />}
+      />
+    </div>
+  );
+}

features/trade/components/order/OrderForm.tsx

@@ -0,0 +1,257 @@
+import { useState } from "react";
+import { Loader2 } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { useOrder } from "@/features/trade/hooks/useOrder";
+import { useKisRuntimeStore } from "@/features/settings/store/use-kis-runtime-store";
+import type {
+  DashboardOrderSide,
+  DashboardStockItem,
+} from "@/features/trade/types/trade.types";
+
+interface OrderFormProps {
+  stock?: DashboardStockItem;
+}
+
+/**
+ * @description 대시보드 주문 패널에서 매수/매도 주문을 입력하고 전송합니다.
+ * @see features/trade/hooks/useOrder.ts placeOrder - 주문 API 호출
+ * @see features/trade/components/TradeContainer.tsx OrderForm - 우측 주문 패널 렌더링
+ */
+export function OrderForm({ stock }: OrderFormProps) {
+  const verifiedCredentials = useKisRuntimeStore(
+    (state) => state.verifiedCredentials,
+  );
+  const { placeOrder, isLoading, error } = useOrder();
+
+  // ========== FORM STATE ==========
+  const [price, setPrice] = useState<string>(stock?.currentPrice.toString() || "");
+  const [quantity, setQuantity] = useState<string>("");
+  const [activeTab, setActiveTab] = useState<"buy" | "sell">("buy");
+
+  // ========== ORDER HANDLER ==========
+  const handleOrder = async (side: DashboardOrderSide) => {
+    if (!stock || !verifiedCredentials) return;
+
+    const priceNum = parseInt(price.replace(/,/g, ""), 10);
+    const qtyNum = parseInt(quantity.replace(/,/g, ""), 10);
+
+    if (Number.isNaN(priceNum) || priceNum <= 0) {
+      alert("가격을 올바르게 입력해 주세요.");
+      return;
+    }
+    if (Number.isNaN(qtyNum) || qtyNum <= 0) {
+      alert("수량을 올바르게 입력해 주세요.");
+      return;
+    }
+    if (!verifiedCredentials.accountNo) {
+      alert("계좌번호가 없습니다. 설정에서 계좌번호를 입력해 주세요.");
+      return;
+    }
+
+    const response = await placeOrder(
+      {
+        symbol: stock.symbol,
+        side,
+        orderType: "limit",
+        price: priceNum,
+        quantity: qtyNum,
+        accountNo: verifiedCredentials.accountNo,
+        accountProductCode: "01",
+      },
+      verifiedCredentials,
+    );
+
+    if (response?.orderNo) {
+      alert(`주문 전송 완료: ${response.orderNo}`);
+      setQuantity("");
+    }
+  };
+
+  const totalPrice =
+    parseInt(price.replace(/,/g, "") || "0", 10) *
+    parseInt(quantity.replace(/,/g, "") || "0", 10);
+
+  const setPercent = (pct: string) => {
+    // TODO: 계좌 잔고 연동 시 퍼센트 자동 계산으로 교체
+    console.log("Percent clicked:", pct);
+  };
+
+  const isMarketDataAvailable = Boolean(stock);
+
+  return (
+    <div className="h-full border-l border-border bg-background p-3 dark:border-brand-800/45 dark:bg-brand-950/55 sm:p-4">
+      <Tabs
+        value={activeTab}
+        onValueChange={(value) => setActiveTab(value as "buy" | "sell")}
+        className="flex h-full w-full flex-col"
+      >
+        {/* ========== ORDER SIDE TABS ========== */}
+        <TabsList className="mb-3 grid h-10 w-full grid-cols-2 gap-1 border border-brand-200/70 bg-muted/35 p-1 dark:border-brand-700/50 dark:bg-brand-900/28 sm:mb-4">
+          <TabsTrigger
+            value="buy"
+            className="!h-full rounded-md border border-transparent text-foreground/75 transition-colors dark:text-brand-100/75 data-[state=active]:border-red-400/60 data-[state=active]:bg-red-600 data-[state=active]:text-white data-[state=active]:shadow-[0_0_0_1px_rgba(248,113,113,0.45)]"
+          >
+            매수
+          </TabsTrigger>
+          <TabsTrigger
+            value="sell"
+            className="!h-full rounded-md border border-transparent text-foreground/75 transition-colors dark:text-brand-100/75 data-[state=active]:border-blue-400/65 data-[state=active]:bg-blue-600 data-[state=active]:text-white data-[state=active]:shadow-[0_0_0_1px_rgba(96,165,250,0.45)]"
+          >
+            매도
+          </TabsTrigger>
+        </TabsList>
+
+        {/* ========== BUY TAB ========== */}
+        <TabsContent
+          value="buy"
+          className="flex flex-1 flex-col space-y-3 data-[state=inactive]:hidden sm:space-y-4"
+        >
+          <OrderInputs
+            type="buy"
+            price={price}
+            setPrice={setPrice}
+            quantity={quantity}
+            setQuantity={setQuantity}
+            totalPrice={totalPrice}
+            disabled={!isMarketDataAvailable}
+            hasError={Boolean(error)}
+            errorMessage={error}
+          />
+          <PercentButtons onSelect={setPercent} />
+          <Button
+            className="mt-auto h-11 w-full bg-red-600 text-base text-white shadow-sm ring-1 ring-red-300/35 hover:bg-red-700 dark:bg-red-500 dark:ring-red-300/45 dark:hover:bg-red-400 sm:h-12 sm:text-lg"
+            disabled={isLoading || !isMarketDataAvailable}
+            onClick={() => handleOrder("buy")}
+          >
+            {isLoading ? <Loader2 className="mr-2 animate-spin" /> : "매수하기"}
+          </Button>
+        </TabsContent>
+
+        {/* ========== SELL TAB ========== */}
+        <TabsContent
+          value="sell"
+          className="flex flex-1 flex-col space-y-3 data-[state=inactive]:hidden sm:space-y-4"
+        >
+          <OrderInputs
+            type="sell"
+            price={price}
+            setPrice={setPrice}
+            quantity={quantity}
+            setQuantity={setQuantity}
+            totalPrice={totalPrice}
+            disabled={!isMarketDataAvailable}
+            hasError={Boolean(error)}
+            errorMessage={error}
+          />
+          <PercentButtons onSelect={setPercent} />
+          <Button
+            className="mt-auto h-11 w-full bg-blue-600 text-base text-white shadow-sm ring-1 ring-blue-300/35 hover:bg-blue-700 dark:bg-blue-500 dark:ring-blue-300/45 dark:hover:bg-blue-400 sm:h-12 sm:text-lg"
+            disabled={isLoading || !isMarketDataAvailable}
+            onClick={() => handleOrder("sell")}
+          >
+            {isLoading ? <Loader2 className="mr-2 animate-spin" /> : "매도하기"}
+          </Button>
+        </TabsContent>
+      </Tabs>
+    </div>
+  );
+}
+
+/**
+ * @description 주문 입력 영역(가격/수량/총액)을 렌더링합니다.
+ * @see features/trade/components/order/OrderForm.tsx OrderForm - 매수/매도 탭에서 공용 호출
+ */
+function OrderInputs({
+  type,
+  price,
+  setPrice,
+  quantity,
+  setQuantity,
+  totalPrice,
+  disabled,
+  hasError,
+  errorMessage,
+}: {
+  type: "buy" | "sell";
+  price: string;
+  setPrice: (v: string) => void;
+  quantity: string;
+  setQuantity: (v: string) => void;
+  totalPrice: number;
+  disabled: boolean;
+  hasError: boolean;
+  errorMessage: string | null;
+}) {
+  return (
+    <div className="space-y-3 sm:space-y-4">
+      <div className="flex justify-between text-xs text-muted-foreground">
+        <span>주문가능</span>
+        <span>- {type === "buy" ? "KRW" : "주"}</span>
+      </div>
+
+      {hasError && (
+        <div className="rounded bg-destructive/10 p-2 text-xs text-destructive break-keep">
+          {errorMessage}
+        </div>
+      )}
+
+      <div className="grid grid-cols-4 items-center gap-2">
+        <span className="text-xs font-medium sm:text-sm">
+          {type === "buy" ? "매수가격" : "매도가격"}
+        </span>
+        <Input
+          className="col-span-3 text-right font-mono dark:border-brand-700/55 dark:bg-black/25 dark:text-brand-100"
+          placeholder="0"
+          value={price}
+          onChange={(e) => setPrice(e.target.value)}
+          disabled={disabled}
+        />
+      </div>
+
+      <div className="grid grid-cols-4 items-center gap-2">
+        <span className="text-xs font-medium sm:text-sm">주문수량</span>
+        <Input
+          className="col-span-3 text-right font-mono dark:border-brand-700/55 dark:bg-black/25 dark:text-brand-100"
+          placeholder="0"
+          value={quantity}
+          onChange={(e) => setQuantity(e.target.value)}
+          disabled={disabled}
+        />
+      </div>
+
+      <div className="grid grid-cols-4 items-center gap-2">
+        <span className="text-xs font-medium sm:text-sm">주문총액</span>
+        <Input
+          className="col-span-3 bg-muted/50 text-right font-mono dark:border-brand-700/55 dark:bg-black/20 dark:text-brand-100"
+          value={totalPrice.toLocaleString()}
+          readOnly
+          disabled={disabled}
+        />
+      </div>
+    </div>
+  );
+}
+
+/**
+ * @description 주문 비율(10/25/50/100%) 단축 버튼을 표시합니다.
+ * @see features/trade/components/order/OrderForm.tsx setPercent - 버튼 클릭 이벤트 처리
+ */
+function PercentButtons({ onSelect }: { onSelect: (pct: string) => void }) {
+  return (
+    <div className="mt-2 grid grid-cols-4 gap-2">
+      {["10%", "25%", "50%", "100%"].map((pct) => (
+        <Button
+          key={pct}
+          variant="outline"
+          size="sm"
+          className="text-xs"
+          onClick={() => onSelect(pct)}
+        >
+          {pct}
+        </Button>
+      ))}
+    </div>
+  );
+}

features/trade/components/orderbook/AnimatedQuantity.tsx

@@ -0,0 +1,102 @@
+import { useEffect, useRef, useState } from "react";
+import { cn } from "@/lib/utils";
+import { AnimatePresence, motion } from "framer-motion";
+
+interface AnimatedQuantityProps {
+  value: number;
+  format?: (val: number) => string;
+  className?: string;
+  /** 값 변동 시 배경 깜빡임 */
+  useColor?: boolean;
+  /** 정렬 방향 (ask: 우측 정렬/왼쪽으로 확장, bid: 좌측 정렬/오른쪽으로 확장) */
+  side?: "ask" | "bid";
+}
+
+/**
+ * 실시간 수량 표시 — 값이 변할 때 ±diff를 인라인으로 보여줍니다.
+ */
+export function AnimatedQuantity({
+  value,
+  format = (v) => v.toLocaleString(),
+  className,
+  useColor = false,
+  side = "bid",
+}: AnimatedQuantityProps) {
+  const prevRef = useRef(value);
+  const [diff, setDiff] = useState<number | null>(null);
+  const [flash, setFlash] = useState<"up" | "down" | null>(null);
+
+  useEffect(() => {
+    if (prevRef.current === value) return;
+
+    const delta = value - prevRef.current;
+    prevRef.current = value;
+
+    if (delta === 0) return;
+
+    setDiff(delta);
+    setFlash(delta > 0 ? "up" : "down");
+
+    const timer = setTimeout(() => {
+      setDiff(null);
+      setFlash(null);
+    }, 1200);
+
+    return () => clearTimeout(timer);
+  }, [value]);
+
+  return (
+    <span
+      className={cn(
+        "relative inline-flex items-center gap-1 tabular-nums",
+        className,
+      )}
+    >
+      {/* 배경 깜빡임 */}
+      <AnimatePresence>
+        {useColor && flash && (
+          <motion.span
+            initial={{ opacity: 0.5 }}
+            animate={{ opacity: 0 }}
+            exit={{ opacity: 0 }}
+            transition={{ duration: 1 }}
+            className={cn(
+              "absolute inset-0 z-0 rounded-sm",
+              flash === "up" ? "bg-red-200/50" : "bg-blue-200/50",
+            )}
+          />
+        )}
+      </AnimatePresence>
+
+      {/* 매도(Ask)일 경우 Diff가 먼저 와야 텍스트가 우측 정렬된 상태에서 흔들리지 않음 */}
+      {side === "ask" && <DiffChange diff={diff} />}
+
+      {/* 수량 값 */}
+      <span className="relative z-10">{format(value)}</span>
+
+      {/* 매수(Bid)일 경우 Diff가 뒤에 와야 텍스트가 좌측 정렬된 상태에서 흔들리지 않음 */}
+      {side !== "ask" && <DiffChange diff={diff} />}
+    </span>
+  );
+}
+
+function DiffChange({ diff }: { diff: number | null }) {
+  return (
+    <AnimatePresence>
+      {diff != null && diff !== 0 && (
+        <motion.span
+          initial={{ opacity: 1, scale: 1 }}
+          animate={{ opacity: 0, scale: 0.85 }}
+          exit={{ opacity: 0 }}
+          transition={{ duration: 1.2, ease: "easeOut" }}
+          className={cn(
+            "relative z-20 whitespace-nowrap text-[9px] font-bold leading-none tabular-nums",
+            diff > 0 ? "text-red-500" : "text-blue-600 dark:text-blue-400",
+          )}
+        >
+          {diff > 0 ? `+${diff.toLocaleString()}` : diff.toLocaleString()}
+        </motion.span>
+      )}
+    </AnimatePresence>
+  );
+}

features/trade/components/orderbook/OrderBook.tsx

@@ -0,0 +1,658 @@
+import { useMemo } from "react";
+import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { Skeleton } from "@/components/ui/skeleton";
+import type {
+  DashboardRealtimeTradeTick,
+  DashboardStockOrderBookResponse,
+} from "@/features/trade/types/trade.types";
+import { cn } from "@/lib/utils";
+import { AnimatedQuantity } from "./AnimatedQuantity";
+
+// ─── 타입 ───────────────────────────────────────────────
+
+interface OrderBookProps {
+  symbol?: string;
+  referencePrice?: number;
+  currentPrice?: number;
+  latestTick: DashboardRealtimeTradeTick | null;
+  recentTicks: DashboardRealtimeTradeTick[];
+  orderBook: DashboardStockOrderBookResponse | null;
+  isLoading?: boolean;
+}
+
+interface BookRow {
+  price: number;
+  size: number;
+  changePercent: number | null;
+  isHighlighted: boolean;
+}
+
+// ─── 유틸리티 함수 ──────────────────────────────────────
+
+/** 천단위 구분 포맷 */
+function fmt(v: number) {
+  return Number.isFinite(v) ? v.toLocaleString("ko-KR") : "0";
+}
+
+/** 부호 포함 퍼센트 */
+function fmtPct(v: number) {
+  return `${v > 0 ? "+" : ""}${v.toFixed(2)}%`;
+}
+
+/** 등락률 계산 */
+function pctChange(price: number, base: number) {
+  return base > 0 ? ((price - base) / base) * 100 : 0;
+}
+
+/** 체결 시각 포맷 */
+function fmtTime(hms: string) {
+  if (!hms || hms.length !== 6) return "--:--:--";
+  return `${hms.slice(0, 2)}:${hms.slice(2, 4)}:${hms.slice(4, 6)}`;
+}
+
+/**
+ * @description 체결 틱 데이터에서 체결 주도 방향(매수/매도/중립)을 계산합니다.
+ * @see features/trade/components/orderbook/OrderBook.tsx TradeTape 체결량 글자색 결정에 사용합니다.
+ */
+function resolveTickExecutionSide(
+  tick: DashboardRealtimeTradeTick,
+  olderTick?: DashboardRealtimeTradeTick,
+) {
+  // 실시간 체결구분 코드(CNTG_CLS_CODE) 우선 해석
+  const executionClassCode = (tick.executionClassCode ?? "").trim();
+  if (executionClassCode === "1" || executionClassCode === "2") {
+    return "buy" as const;
+  }
+  if (executionClassCode === "4" || executionClassCode === "5") {
+    return "sell" as const;
+  }
+
+  // 누적 건수 기반 데이터는 절대값이 아니라 "증분"으로 판단해야 편향을 줄일 수 있습니다.
+  if (olderTick) {
+    const netBuyDelta =
+      tick.netBuyExecutionCount - olderTick.netBuyExecutionCount;
+    if (netBuyDelta > 0) return "buy" as const;
+    if (netBuyDelta < 0) return "sell" as const;
+
+    const buyCountDelta = tick.buyExecutionCount - olderTick.buyExecutionCount;
+    const sellCountDelta =
+      tick.sellExecutionCount - olderTick.sellExecutionCount;
+    if (buyCountDelta > sellCountDelta) return "buy" as const;
+    if (buyCountDelta < sellCountDelta) return "sell" as const;
+  }
+
+  if (tick.askPrice1 > 0 && tick.bidPrice1 > 0) {
+    if (tick.price >= tick.askPrice1 && tick.price > tick.bidPrice1) {
+      return "buy" as const;
+    }
+    if (tick.price <= tick.bidPrice1 && tick.price < tick.askPrice1) {
+      return "sell" as const;
+    }
+  }
+
+  if (tick.tradeStrength > 100) return "buy" as const;
+  if (tick.tradeStrength < 100) return "sell" as const;
+
+  return "neutral" as const;
+}
+
+// ─── 메인 컴포넌트 ──────────────────────────────────────
+
+/**
+ * 호가창 — 실시간 매도·매수 10호가와 체결 목록을 표시합니다.
+ */
+export function OrderBook({
+  symbol,
+  referencePrice,
+  currentPrice,
+  latestTick,
+  recentTicks,
+  orderBook,
+  isLoading,
+}: OrderBookProps) {
+  const levels = useMemo(() => orderBook?.levels ?? [], [orderBook]);
+
+  // 체결가: tick에서 우선, 없으면 0
+  const latestPrice =
+    latestTick?.price && latestTick.price > 0 ? latestTick.price : 0;
+
+  // 등락률 기준가
+  const basePrice =
+    (referencePrice ?? 0) > 0
+      ? referencePrice!
+      : (currentPrice ?? 0) > 0
+        ? currentPrice!
+        : latestPrice > 0
+          ? latestPrice
+          : 0;
+
+  // 매도호가 (역순: 10호가 → 1호가)
+  const askRows: BookRow[] = useMemo(
+    () =>
+      [...levels].reverse().map((l) => ({
+        price: l.askPrice,
+        size: Math.max(l.askSize, 0),
+        changePercent:
+          l.askPrice > 0 && basePrice > 0
+            ? pctChange(l.askPrice, basePrice)
+            : null,
+        isHighlighted: latestPrice > 0 && l.askPrice === latestPrice,
+      })),
+    [levels, basePrice, latestPrice],
+  );
+
+  // 매수호가 (1호가 → 10호가)
+  const bidRows: BookRow[] = useMemo(
+    () =>
+      levels.map((l) => ({
+        price: l.bidPrice,
+        size: Math.max(l.bidSize, 0),
+        changePercent:
+          l.bidPrice > 0 && basePrice > 0
+            ? pctChange(l.bidPrice, basePrice)
+            : null,
+        isHighlighted: latestPrice > 0 && l.bidPrice === latestPrice,
+      })),
+    [levels, basePrice, latestPrice],
+  );
+
+  const askMax = Math.max(1, ...askRows.map((r) => r.size));
+  const bidMax = Math.max(1, ...bidRows.map((r) => r.size));
+
+  // 스프레드·수급 불균형
+  const bestAsk = levels.find((l) => l.askPrice > 0)?.askPrice ?? 0;
+  const bestBid = levels.find((l) => l.bidPrice > 0)?.bidPrice ?? 0;
+  const spread = bestAsk > 0 && bestBid > 0 ? bestAsk - bestBid : 0;
+  const totalAsk = orderBook?.totalAskSize ?? 0;
+  const totalBid = orderBook?.totalBidSize ?? 0;
+  const imbalance =
+    totalAsk + totalBid > 0
+      ? ((totalBid - totalAsk) / (totalAsk + totalBid)) * 100
+      : 0;
+
+  // 체결가 행 중앙 스크롤
+
+  // ─── 빈/로딩 상태 ───
+  if (!symbol) {
+    return (
+      <div className="flex h-full items-center justify-center text-sm text-muted-foreground">
+        종목을 선택해주세요.
+      </div>
+    );
+  }
+  if (isLoading && !orderBook) return <OrderBookSkeleton />;
+  if (!orderBook) {
+    return (
+      <div className="flex h-full items-center justify-center text-sm text-muted-foreground">
+        호가 정보를 가져오지 못했습니다.
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex h-full min-h-0 flex-col bg-white dark:bg-brand-900/10">
+      <Tabs defaultValue="normal" className="h-full min-h-0">
+        {/* 탭 헤더 */}
+        <div className="border-b px-2 pt-2 dark:border-brand-800/45 dark:bg-brand-900/28">
+          <TabsList variant="line" className="w-full justify-start">
+            <TabsTrigger value="normal" className="px-3">
+              일반호가
+            </TabsTrigger>
+            <TabsTrigger value="cumulative" className="px-3">
+              누적호가
+            </TabsTrigger>
+            <TabsTrigger value="order" className="px-3">
+              호가주문
+            </TabsTrigger>
+          </TabsList>
+        </div>
+
+        {/* ── 일반호가 탭 ── */}
+        <TabsContent value="normal" className="min-h-0 flex-1">
+          <div className="block h-full min-h-0 border-t dark:border-brand-800/45 xl:grid xl:grid-rows-[1fr_190px] xl:overflow-hidden">
+            <div className="block min-h-0 xl:grid xl:grid-cols-[minmax(0,1fr)_168px] xl:overflow-hidden">
+              {/* 호가 테이블 */}
+              <div className="min-h-0 xl:border-r dark:border-brand-800/45">
+                <BookHeader />
+                <ScrollArea className="h-[320px] sm:h-[360px] xl:h-[calc(100%-32px)] [&>[data-slot=scroll-area-scrollbar]]:hidden xl:[&>[data-slot=scroll-area-scrollbar]]:flex">
+                  {/* 매도호가 */}
+                  <BookSideRows rows={askRows} side="ask" maxSize={askMax} />
+
+                  {/* 중앙 바: 현재 체결가 */}
+                  <div className="grid h-8 grid-cols-3 items-center border-y-2 border-amber-400 bg-amber-50/80 dark:bg-amber-900/30 xl:h-9">
+                    <div className="px-2 text-right text-[10px] font-medium text-muted-foreground dark:text-brand-100/72">
+                      {totalAsk > 0 ? fmt(totalAsk) : ""}
+                    </div>
+                    <div className="flex items-center justify-center gap-1">
+                      <span className="text-xs font-bold tabular-nums">
+                        {latestPrice > 0
+                          ? fmt(latestPrice)
+                          : bestAsk > 0
+                            ? fmt(bestAsk)
+                            : "-"}
+                      </span>
+                      {latestPrice > 0 && basePrice > 0 && (
+                        <span
+                          className={cn(
+                            "text-[10px] font-medium",
+                            latestPrice >= basePrice
+                              ? "text-red-500"
+                              : "text-blue-600 dark:text-blue-400",
+                          )}
+                        >
+                          {fmtPct(pctChange(latestPrice, basePrice))}
+                        </span>
+                      )}
+                    </div>
+                    <div className="px-2 text-left text-[10px] font-medium text-muted-foreground dark:text-brand-100/72">
+                      {totalBid > 0 ? fmt(totalBid) : ""}
+                    </div>
+                  </div>
+
+                  {/* 매수호가 */}
+                  <BookSideRows rows={bidRows} side="bid" maxSize={bidMax} />
+                </ScrollArea>
+              </div>
+
+              {/* 우측 요약 패널 */}
+              <div className="hidden xl:block">
+                <SummaryPanel
+                  orderBook={orderBook}
+                  latestTick={latestTick}
+                  spread={spread}
+                  imbalance={imbalance}
+                  totalAsk={totalAsk}
+                  totalBid={totalBid}
+                />
+              </div>
+            </div>
+
+            {/* 체결 목록 */}
+            <div className="hidden xl:block">
+              <TradeTape ticks={recentTicks} />
+            </div>
+          </div>
+        </TabsContent>
+
+        {/* ── 누적호가 탭 ── */}
+        <TabsContent value="cumulative" className="min-h-0 flex-1">
+          <ScrollArea className="h-full border-t dark:border-brand-800/45">
+            <div className="p-3">
+              <div className="mb-2 grid grid-cols-3 text-[11px] font-medium text-muted-foreground">
+                <span>매도누적</span>
+                <span className="text-center">호가</span>
+                <span className="text-right">매수누적</span>
+              </div>
+              <CumulativeRows asks={askRows} bids={bidRows} />
+            </div>
+          </ScrollArea>
+        </TabsContent>
+
+        {/* ── 호가주문 탭 ── */}
+        <TabsContent value="order" className="min-h-0 flex-1">
+          <div className="flex h-full items-center justify-center border-t px-4 text-sm text-muted-foreground dark:border-brand-800/45 dark:text-brand-100/75">
+            호가주문 탭은 주문 입력 패널과 연동해 확장할 수 있습니다.
+          </div>
+        </TabsContent>
+      </Tabs>
+    </div>
+  );
+}
+
+// ─── 하위 컴포넌트 ──────────────────────────────────────
+
+/** 호가 표 헤더 */
+function BookHeader() {
+  return (
+    <div className="grid h-8 grid-cols-3 border-b bg-muted/20 text-[11px] font-medium text-muted-foreground dark:border-brand-800/45 dark:bg-brand-900/35 dark:text-brand-100/78">
+      <div className="flex items-center justify-end px-2">매도잔량</div>
+      <div className="flex items-center justify-center border-x">호가</div>
+      <div className="flex items-center justify-start px-2">매수잔량</div>
+    </div>
+  );
+}
+
+/** 매도 또는 매수 호가 행 목록 */
+function BookSideRows({
+  rows,
+  side,
+  maxSize,
+}: {
+  rows: BookRow[];
+  side: "ask" | "bid";
+  maxSize: number;
+}) {
+  const isAsk = side === "ask";
+
+  return (
+    <div
+      className={cn(
+        isAsk
+          ? "bg-red-50/20 dark:bg-red-950/18"
+          : "bg-blue-50/55 dark:bg-blue-950/22",
+      )}
+    >
+      {rows.map((row, i) => {
+        const ratio =
+          maxSize > 0 ? Math.min((row.size / maxSize) * 100, 100) : 0;
+
+        return (
+          <div
+            key={`${side}-${row.price}-${i}`}
+            className={cn(
+              "grid h-7 grid-cols-3 border-b border-border/40 text-[11px] xl:h-8 xl:text-xs dark:border-brand-800/35",
+              row.isHighlighted &&
+                "ring-1 ring-inset ring-amber-400 bg-amber-100/50 dark:bg-amber-800/30",
+            )}
+          >
+            {/* 매도잔량 (좌측) */}
+            <div className="relative flex items-center justify-end overflow-hidden px-2">
+              {isAsk && (
+                <>
+                  <DepthBar ratio={ratio} side="ask" />
+                  {row.size > 0 ? (
+                    <AnimatedQuantity
+                      value={row.size}
+                      format={fmt}
+                      useColor
+                      side="ask"
+                      className="relative z-10"
+                    />
+                  ) : (
+                    <span className="relative z-10 text-transparent">0</span>
+                  )}
+                </>
+              )}
+            </div>
+
+            {/* 호가 (중앙) */}
+            <div
+              className={cn(
+                "flex items-center justify-center border-x font-medium tabular-nums gap-1",
+                row.isHighlighted &&
+                  "border-x-amber-400 bg-amber-50/70 dark:bg-amber-800/20",
+              )}
+            >
+              <span
+                className={
+                  isAsk ? "text-red-600" : "text-blue-600 dark:text-blue-400"
+                }
+              >
+                {row.price > 0 ? fmt(row.price) : "-"}
+              </span>
+              <span
+                className={cn(
+                  "text-[10px]",
+                  row.changePercent !== null
+                    ? row.changePercent >= 0
+                      ? "text-red-500"
+                      : "text-blue-600 dark:text-blue-400"
+                    : "text-muted-foreground",
+                )}
+              >
+                {row.changePercent === null ? "-" : fmtPct(row.changePercent)}
+              </span>
+            </div>
+
+            {/* 매수잔량 (우측) */}
+            <div className="relative flex items-center justify-start overflow-hidden px-1">
+              {!isAsk && (
+                <>
+                  <DepthBar ratio={ratio} side="bid" />
+                  {row.size > 0 ? (
+                    <AnimatedQuantity
+                      value={row.size}
+                      format={fmt}
+                      useColor
+                      side="bid"
+                      className="relative z-10"
+                    />
+                  ) : (
+                    <span className="relative z-10 text-transparent">0</span>
+                  )}
+                </>
+              )}
+            </div>
+          </div>
+        );
+      })}
+    </div>
+  );
+}
+
+/** 우측 요약 패널 */
+function SummaryPanel({
+  orderBook,
+  latestTick,
+  spread,
+  imbalance,
+  totalAsk,
+  totalBid,
+}: {
+  orderBook: DashboardStockOrderBookResponse;
+  latestTick: DashboardRealtimeTradeTick | null;
+  spread: number;
+  imbalance: number;
+  totalAsk: number;
+  totalBid: number;
+}) {
+  return (
+    <div className="min-w-0 border-l bg-muted/10 p-2 text-[11px] dark:border-brand-800/45 dark:bg-brand-900/30">
+      <Row
+        label="실시간"
+        value={orderBook ? "연결됨" : "끊김"}
+        tone={orderBook ? "bid" : undefined}
+      />
+      <Row
+        label="거래량"
+        value={fmt(latestTick?.tradeVolume ?? orderBook.anticipatedVolume ?? 0)}
+      />
+      <Row
+        label="누적거래량"
+        value={fmt(
+          latestTick?.accumulatedVolume ?? orderBook.accumulatedVolume ?? 0,
+        )}
+      />
+      <Row
+        label="체결강도"
+        value={
+          latestTick
+            ? `${latestTick.tradeStrength.toFixed(2)}%`
+            : orderBook.anticipatedChangeRate !== undefined
+              ? `${orderBook.anticipatedChangeRate.toFixed(2)}%`
+              : "-"
+        }
+      />
+      <Row label="예상체결가" value={fmt(orderBook.anticipatedPrice ?? 0)} />
+      <Row
+        label="매도1호가"
+        value={latestTick ? fmt(latestTick.askPrice1) : "-"}
+        tone="ask"
+      />
+      <Row
+        label="매수1호가"
+        value={latestTick ? fmt(latestTick.bidPrice1) : "-"}
+        tone="bid"
+      />
+      <Row
+        label="매수체결"
+        value={latestTick ? fmt(latestTick.buyExecutionCount) : "-"}
+      />
+      <Row
+        label="매도체결"
+        value={latestTick ? fmt(latestTick.sellExecutionCount) : "-"}
+      />
+      <Row
+        label="순매수체결"
+        value={latestTick ? fmt(latestTick.netBuyExecutionCount) : "-"}
+      />
+      <Row label="총 매도잔량" value={fmt(totalAsk)} tone="ask" />
+      <Row label="총 매수잔량" value={fmt(totalBid)} tone="bid" />
+      <Row label="스프레드" value={fmt(spread)} />
+      <Row
+        label="수급 불균형"
+        value={`${imbalance >= 0 ? "+" : ""}${imbalance.toFixed(2)}%`}
+        tone={imbalance >= 0 ? "bid" : "ask"}
+      />
+    </div>
+  );
+}
+
+/** 요약 패널 단일 행 */
+function Row({
+  label,
+  value,
+  tone,
+}: {
+  label: string;
+  value: string;
+  tone?: "ask" | "bid";
+}) {
+  return (
+    <div className="mb-1.5 flex items-center justify-between gap-2 rounded border bg-background px-2 py-1 dark:border-brand-800/45 dark:bg-black/20">
+      <span className="min-w-0 truncate text-muted-foreground dark:text-brand-100/70">
+        {label}
+      </span>
+      <span
+        className={cn(
+          "shrink-0 font-medium tabular-nums",
+          tone === "ask" && "text-red-600",
+          tone === "bid" && "text-blue-600 dark:text-blue-400",
+        )}
+      >
+        {value}
+      </span>
+    </div>
+  );
+}
+
+/** 잔량 깊이 바 */
+function DepthBar({ ratio, side }: { ratio: number; side: "ask" | "bid" }) {
+  if (ratio <= 0) return null;
+  return (
+    <div
+      className={cn(
+        "absolute inset-y-1 z-0 rounded-sm",
+        side === "ask"
+          ? "right-1 bg-red-200/50 dark:bg-red-800/40"
+          : "left-1 bg-blue-200/55 dark:bg-blue-500/35",
+      )}
+      style={{ width: `${ratio}%` }}
+    />
+  );
+}
+
+/** 체결 목록 (Trade Tape) */
+function TradeTape({ ticks }: { ticks: DashboardRealtimeTradeTick[] }) {
+  return (
+    <div className="border-t bg-background dark:border-brand-800/45 dark:bg-brand-900/20">
+      <div className="grid h-7 grid-cols-4 border-b bg-muted/20 px-2 text-[11px] font-medium text-muted-foreground dark:border-brand-800/45 dark:bg-brand-900/35 dark:text-brand-100/78">
+        <div className="flex items-center">체결시각</div>
+        <div className="flex items-center justify-end">체결가</div>
+        <div className="flex items-center justify-end">체결량</div>
+        <div className="flex items-center justify-end">체결강도</div>
+      </div>
+      <ScrollArea className="h-[162px]">
+        <div>
+          {ticks.length === 0 && (
+            <div className="flex h-[160px] items-center justify-center text-xs text-muted-foreground dark:text-brand-100/70">
+              체결 데이터가 아직 없습니다.
+            </div>
+          )}
+          {ticks.map((t, i) => {
+            const olderTick = ticks[i + 1];
+            const executionSide = resolveTickExecutionSide(t, olderTick);
+            // UI 흐름: 체결목록 UI -> resolveTickExecutionSide(현재/이전 틱) -> 색상 class 결정 -> 체결량 렌더 반영
+            const volumeToneClass =
+              executionSide === "buy"
+                ? "text-red-600"
+                : executionSide === "sell"
+                  ? "text-blue-600 dark:text-blue-400"
+                  : "text-muted-foreground dark:text-brand-100/70";
+
+            return (
+              <div
+                key={`${t.tickTime}-${t.price}-${i}`}
+                className="grid h-8 grid-cols-4 border-b border-border/40 px-2 text-xs dark:border-brand-800/35"
+              >
+                <div className="flex items-center tabular-nums">
+                  {fmtTime(t.tickTime)}
+                </div>
+                <div className="flex items-center justify-end tabular-nums text-red-600">
+                  {fmt(t.price)}
+                </div>
+                <div
+                  className={cn(
+                    "flex items-center justify-end tabular-nums",
+                    volumeToneClass,
+                  )}
+                >
+                  {fmt(t.tradeVolume)}
+                </div>
+                <div className="flex items-center justify-end tabular-nums">
+                  {t.tradeStrength.toFixed(2)}%
+                </div>
+              </div>
+            );
+          })}
+        </div>
+      </ScrollArea>
+    </div>
+  );
+}
+
+/** 누적호가 행 */
+function CumulativeRows({ asks, bids }: { asks: BookRow[]; bids: BookRow[] }) {
+  const rows = useMemo(() => {
+    const len = Math.max(asks.length, bids.length);
+    const result: { askAcc: number; bidAcc: number; price: number }[] = [];
+    for (let i = 0; i < len; i++) {
+      const prevAsk = result[i - 1]?.askAcc ?? 0;
+      const prevBid = result[i - 1]?.bidAcc ?? 0;
+      result.push({
+        askAcc: prevAsk + (asks[i]?.size ?? 0),
+        bidAcc: prevBid + (bids[i]?.size ?? 0),
+        price: asks[i]?.price || bids[i]?.price || 0,
+      });
+    }
+    return result;
+  }, [asks, bids]);
+
+  return (
+    <div className="space-y-1">
+      {rows.map((r, i) => (
+        <div
+          key={i}
+          className="grid h-7 grid-cols-3 items-center rounded border bg-background px-2 text-xs dark:border-brand-800/45 dark:bg-black/20"
+        >
+          <span className="tabular-nums text-red-600">{fmt(r.askAcc)}</span>
+          <span className="text-center font-medium tabular-nums">
+            {fmt(r.price)}
+          </span>
+          <span className="text-right tabular-nums text-blue-600 dark:text-blue-400">
+            {fmt(r.bidAcc)}
+          </span>
+        </div>
+      ))}
+    </div>
+  );
+}
+
+/** 로딩 스켈레톤 */
+function OrderBookSkeleton() {
+  return (
+    <div className="flex h-full flex-col p-3">
+      <div className="mb-3 grid grid-cols-3 gap-2">
+        <Skeleton className="h-8 w-full" />
+        <Skeleton className="h-8 w-full" />
+        <Skeleton className="h-8 w-full" />
+      </div>
+      <div className="space-y-2">
+        {Array.from({ length: 16 }).map((_, i) => (
+          <Skeleton key={i} className="h-7 w-full" />
+        ))}
+      </div>
+    </div>
+  );
+}

features/trade/components/search/StockSearchForm.tsx

@@ -0,0 +1,65 @@
+import type { FormEvent } from "react";
+import { Search, X } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+
+interface StockSearchFormProps {
+  keyword: string;
+  onKeywordChange: (value: string) => void;
+  onSubmit: (event: FormEvent) => void;
+  onInputFocus?: () => void;
+  disabled?: boolean;
+  isLoading?: boolean;
+}
+
+/**
+ * @description 종목 검색 입력/제출 폼을 렌더링합니다.
+ * @see features/trade/components/TradeContainer.tsx 검색 패널에서 키워드 입력 이벤트를 전달합니다.
+ */
+export function StockSearchForm({
+  keyword,
+  onKeywordChange,
+  onSubmit,
+  onInputFocus,
+  disabled,
+  isLoading,
+}: StockSearchFormProps) {
+  const handleClear = () => {
+    onKeywordChange("");
+    // 포커스 로직이 필요하다면 상위에서 ref를 전달받거나 여기서 ref를 사용해야 함.
+    // 현재는 단순 값 초기화만 수행.
+  };
+
+  return (
+    <form onSubmit={onSubmit} className="flex gap-2">
+      {/* ========== SEARCH INPUT ========== */}
+      <div className="relative flex-1">
+        <Search className="absolute left-2.5 top-2.5 h-4 w-4 text-muted-foreground dark:text-brand-100/65" />
+        <Input
+          value={keyword}
+          onChange={(e) => onKeywordChange(e.target.value)}
+          onFocus={onInputFocus}
+          placeholder="종목명 또는 종목코드(6자리)를 입력하세요."
+          autoComplete="off"
+          className="pl-9 pr-9 dark:border-brand-700/55 dark:bg-brand-900/28 dark:text-brand-100 dark:placeholder:text-brand-100/55"
+        />
+        {keyword && (
+          <button
+            type="button"
+            onClick={handleClear}
+            className="absolute right-2.5 top-2.5 text-muted-foreground hover:text-foreground dark:text-brand-100/65 dark:hover:text-brand-100"
+            tabIndex={-1}
+            aria-label="검색어 지우기"
+          >
+            <X className="h-4 w-4" />
+          </button>
+        )}
+      </div>
+
+      {/* ========== SUBMIT BUTTON ========== */}
+      <Button type="submit" disabled={disabled || isLoading}>
+        {isLoading ? "검색 중..." : "검색"}
+      </Button>
+    </form>
+  );
+}

features/trade/components/search/StockSearchHistory.tsx

@@ -0,0 +1,88 @@
+import { Clock3, Trash2, X } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { cn } from "@/lib/utils";
+import type { DashboardStockSearchHistoryItem } from "@/features/trade/types/trade.types";
+
+interface StockSearchHistoryProps {
+  items: DashboardStockSearchHistoryItem[];
+  selectedSymbol?: string;
+  onSelect: (item: DashboardStockSearchHistoryItem) => void;
+  onRemove: (symbol: string) => void;
+  onClear: () => void;
+}
+
+/**
+ * @description 최근 검색 종목 목록을 보여주고, 재검색/개별삭제/전체삭제를 제공합니다.
+ * @see features/trade/components/TradeContainer.tsx 검색 패널에서 종목 재선택 UI로 사용합니다.
+ * @see features/trade/hooks/useStockSearch.ts searchHistory 상태를 화면에 렌더링합니다.
+ */
+export function StockSearchHistory({
+  items,
+  selectedSymbol,
+  onSelect,
+  onRemove,
+  onClear,
+}: StockSearchHistoryProps) {
+  if (items.length === 0) return null;
+
+  return (
+    <section className="rounded-md border border-brand-200/80 bg-brand-50/45 p-2 dark:border-brand-700/50 dark:bg-brand-900/26">
+      {/* ========== HISTORY HEADER ========== */}
+      <div className="mb-1.5 flex items-center justify-between gap-2 px-1">
+        <div className="flex items-center gap-1.5 text-xs font-semibold text-brand-700 dark:text-brand-200">
+          <Clock3 className="h-3.5 w-3.5" />
+          최근 검색 종목
+        </div>
+        <Button
+          type="button"
+          variant="ghost"
+          size="sm"
+          onClick={onClear}
+          className="h-7 px-2 text-[11px] text-muted-foreground hover:text-foreground dark:text-brand-100/75 dark:hover:text-brand-50"
+        >
+          <Trash2 className="mr-1 h-3.5 w-3.5" />
+          전체 삭제
+        </Button>
+      </div>
+
+      {/* ========== HISTORY LIST ========== */}
+      <div className="max-h-36 space-y-1 overflow-y-auto pr-1">
+        {items.map((item) => {
+          const isSelected = item.symbol === selectedSymbol;
+
+          return (
+            <div key={item.symbol} className="flex items-center gap-1">
+              <Button
+                type="button"
+                variant="ghost"
+                onClick={() => onSelect(item)}
+                className={cn(
+                  "h-8 flex-1 justify-between rounded-md border border-transparent px-2.5",
+                  "text-left hover:bg-white/80 dark:hover:bg-brand-800/35",
+                  isSelected &&
+                    "border-brand-300 bg-white text-brand-700 dark:border-brand-500/55 dark:bg-brand-800/40 dark:text-brand-100",
+                )}
+              >
+                <span className="truncate text-sm font-medium">{item.name}</span>
+                <span className="ml-2 shrink-0 text-[11px] text-muted-foreground dark:text-brand-100/70">
+                  {item.symbol}
+                </span>
+              </Button>
+
+              <Button
+                type="button"
+                variant="ghost"
+                size="icon"
+                onClick={() => onRemove(item.symbol)}
+                aria-label={`${item.name} 히스토리 삭제`}
+                className="h-8 w-8 shrink-0 text-muted-foreground hover:bg-white/80 hover:text-foreground dark:text-brand-100/70 dark:hover:bg-brand-800/35 dark:hover:text-brand-50"
+              >
+                <X className="h-4 w-4" />
+              </Button>
+            </div>
+          );
+        })}
+      </div>
+    </section>
+  );
+}

features/trade/components/search/StockSearchResults.tsx

@@ -0,0 +1,47 @@
+import { Button } from "@/components/ui/button";
+// import { Activity, TrendingDown, TrendingUp } from "lucide-react";
+import { cn } from "@/lib/utils";
+import type { DashboardStockSearchItem } from "@/features/trade/types/trade.types";
+
+interface StockSearchResultsProps {
+  items: DashboardStockSearchItem[];
+  onSelect: (item: DashboardStockSearchItem) => void;
+  selectedSymbol?: string;
+}
+
+export function StockSearchResults({
+  items,
+  onSelect,
+  selectedSymbol,
+}: StockSearchResultsProps) {
+  if (items.length === 0) return null;
+
+  return (
+    <div className="flex flex-col p-2">
+      {items.map((item) => {
+        const isSelected = item.symbol === selectedSymbol;
+        return (
+          <Button
+            key={item.symbol}
+            variant="outline"
+            className={cn(
+              "h-auto w-full flex-col items-start gap-1 p-3 text-left",
+              isSelected && "border-brand-500 bg-brand-50 hover:bg-brand-100",
+            )}
+            onClick={() => onSelect(item)}
+          >
+            <div className="flex w-full items-center justify-between gap-2">
+              <span className="font-semibold truncate">{item.name}</span>
+              <span className="text-xs text-muted-foreground shrink-0">
+                {item.symbol}
+              </span>
+            </div>
+            <div className="flex items-center gap-1 text-xs text-muted-foreground">
+              {item.market}
+            </div>
+          </Button>
+        );
+      })}
+    </div>
+  );
+}

features/trade/components/search/TradeSearchSection.tsx

@@ -0,0 +1,101 @@
+import type { FormEvent, KeyboardEvent, FocusEvent, MutableRefObject } from "react";
+import { StockSearchForm } from "@/features/trade/components/search/StockSearchForm";
+import { StockSearchHistory } from "@/features/trade/components/search/StockSearchHistory";
+import { StockSearchResults } from "@/features/trade/components/search/StockSearchResults";
+import type {
+  DashboardStockSearchHistoryItem,
+  DashboardStockSearchItem,
+} from "@/features/trade/types/trade.types";
+
+interface TradeSearchSectionProps {
+  canSearch: boolean;
+  isSearchPanelOpen: boolean;
+  isSearching: boolean;
+  keyword: string;
+  selectedSymbol?: string;
+  searchResults: DashboardStockSearchItem[];
+  searchHistory: DashboardStockSearchHistoryItem[];
+  searchShellRef: MutableRefObject<HTMLDivElement | null>;
+  onKeywordChange: (value: string) => void;
+  onSearchSubmit: (event: FormEvent) => void;
+  onSearchFocus: () => void;
+  onSearchShellBlur: (event: FocusEvent<HTMLDivElement>) => void;
+  onSearchShellKeyDown: (event: KeyboardEvent<HTMLDivElement>) => void;
+  onSelectStock: (item: DashboardStockSearchItem) => void;
+  onRemoveHistory: (symbol: string) => void;
+  onClearHistory: () => void;
+}
+
+/**
+ * @description 트레이드 화면 상단의 검색 입력/결과/히스토리 드롭다운 영역을 렌더링합니다.
+ * @see features/trade/components/TradeContainer.tsx TradeContainer에서 검색 섹션을 분리해 렌더 복잡도를 줄입니다.
+ * @see features/trade/hooks/useTradeSearchPanel.ts 패널 열림/닫힘 및 포커스 핸들러를 전달받습니다.
+ */
+export function TradeSearchSection({
+  canSearch,
+  isSearchPanelOpen,
+  isSearching,
+  keyword,
+  selectedSymbol,
+  searchResults,
+  searchHistory,
+  searchShellRef,
+  onKeywordChange,
+  onSearchSubmit,
+  onSearchFocus,
+  onSearchShellBlur,
+  onSearchShellKeyDown,
+  onSelectStock,
+  onRemoveHistory,
+  onClearHistory,
+}: TradeSearchSectionProps) {
+  return (
+    <div className="z-30 flex-none border-b bg-background/95 p-4 backdrop-blur-sm dark:border-brand-800/45 dark:bg-brand-900/22">
+      {/* ========== SEARCH SHELL ========== */}
+      <div
+        ref={searchShellRef}
+        onBlurCapture={onSearchShellBlur}
+        onKeyDownCapture={onSearchShellKeyDown}
+        className="relative mx-auto max-w-2xl"
+      >
+        <StockSearchForm
+          keyword={keyword}
+          onKeywordChange={onKeywordChange}
+          onSubmit={onSearchSubmit}
+          onInputFocus={onSearchFocus}
+          disabled={!canSearch}
+          isLoading={isSearching}
+        />
+
+        {/* ========== SEARCH DROPDOWN ========== */}
+        {isSearchPanelOpen && canSearch && (
+          <div className="absolute left-0 right-0 top-full z-50 mt-1 max-h-80 overflow-x-hidden overflow-y-auto rounded-md border bg-background shadow-lg dark:border-brand-800/45 dark:bg-brand-950/95">
+            {searchResults.length > 0 ? (
+              <StockSearchResults
+                items={searchResults}
+                onSelect={onSelectStock}
+                selectedSymbol={selectedSymbol}
+              />
+            ) : keyword.trim() ? (
+              <div className="px-3 py-2 text-sm text-muted-foreground">
+                {isSearching ? "검색 중..." : "검색 결과가 없습니다."}
+              </div>
+            ) : searchHistory.length > 0 ? (
+              <StockSearchHistory
+                items={searchHistory}
+                onSelect={onSelectStock}
+                onRemove={onRemoveHistory}
+                onClear={onClearHistory}
+                selectedSymbol={selectedSymbol}
+              />
+            ) : (
+              <div className="px-3 py-2 text-sm text-muted-foreground">
+                최근 검색 종목이 없습니다.
+              </div>
+            )}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

features/trade/data/korean-stocks.ts

@@ -0,0 +1,10 @@
+import rawStocks from "@/features/trade/data/korean-stocks.json";
+import type { KoreanStockIndexItem } from "@/features/trade/types/trade.types";
+
+/**
+ * 국내주식 검색 인덱스(KOSPI + KOSDAQ)
+ * - 파일 원본: korean-stocks.json
+ * - 사용처: /api/kis/domestic/search 라우트의 메모리 검색
+ * @see app/api/kis/domestic/search/route.ts 종목명/종목코드 검색에 사용합니다.
+ */
+export const KOREAN_STOCK_INDEX = rawStocks as KoreanStockIndexItem[];

features/trade/data/mock-stocks.ts

@@ -0,0 +1,126 @@
+/**
+ * @file features/trade/data/mock-stocks.ts
+ * @description 대시보드 1단계 UI 검증용 목업 종목 데이터
+ * @remarks
+ * - 한국투자증권 API 연동 전까지 화면 동작 검증에 사용합니다.
+ * - 2단계 이후 실제 화면은 app/api/kis/* 응답을 사용합니다.
+ * - 현재는 레거시/비교용 샘플 데이터로만 남겨둔 상태입니다.
+ */
+
+import type { DashboardStockItem } from "@/features/trade/types/trade.types";
+
+/**
+ * 대시보드 목업 종목 목록
+ * @see app/(main)/dashboard/page.tsx DashboardPage가 DashboardMain을 통해 이 데이터를 조회합니다.
+ * @see features/trade/components/dashboard-main.tsx 검색/차트/지표 카드의 기본 데이터 소스입니다.
+ */
+export const MOCK_STOCKS: DashboardStockItem[] = [
+  {
+    symbol: "005930",
+    name: "삼성전자",
+    market: "KOSPI",
+    currentPrice: 78500,
+    change: 1200,
+    changeRate: 1.55,
+    open: 77300,
+    high: 78900,
+    low: 77000,
+    prevClose: 77300,
+    volume: 15234012,
+    candles: [
+      { time: "09:00", price: 74400 },
+      { time: "09:10", price: 74650 },
+      { time: "09:20", price: 75100 },
+      { time: "09:30", price: 74950 },
+      { time: "09:40", price: 75300 },
+      { time: "09:50", price: 75600 },
+      { time: "10:00", price: 75400 },
+      { time: "10:10", price: 75850 },
+      { time: "10:20", price: 76100 },
+      { time: "10:30", price: 75950 },
+      { time: "10:40", price: 76350 },
+      { time: "10:50", price: 76700 },
+      { time: "11:00", price: 76900 },
+      { time: "11:10", price: 77250 },
+      { time: "11:20", price: 77100 },
+      { time: "11:30", price: 77400 },
+      { time: "11:40", price: 77700 },
+      { time: "11:50", price: 78150 },
+      { time: "12:00", price: 77900 },
+      { time: "12:10", price: 78300 },
+      { time: "12:20", price: 78500 },
+    ],
+  },
+  {
+    symbol: "000660",
+    name: "SK하이닉스",
+    market: "KOSPI",
+    currentPrice: 214500,
+    change: -1500,
+    changeRate: -0.69,
+    open: 216000,
+    high: 218000,
+    low: 213000,
+    prevClose: 216000,
+    volume: 3210450,
+    candles: [
+      { time: "09:00", price: 221000 },
+      { time: "09:10", price: 220400 },
+      { time: "09:20", price: 219900 },
+      { time: "09:30", price: 220200 },
+      { time: "09:40", price: 219300 },
+      { time: "09:50", price: 218500 },
+      { time: "10:00", price: 217900 },
+      { time: "10:10", price: 218300 },
+      { time: "10:20", price: 217600 },
+      { time: "10:30", price: 216900 },
+      { time: "10:40", price: 216500 },
+      { time: "10:50", price: 216800 },
+      { time: "11:00", price: 215900 },
+      { time: "11:10", price: 215300 },
+      { time: "11:20", price: 214800 },
+      { time: "11:30", price: 215100 },
+      { time: "11:40", price: 214200 },
+      { time: "11:50", price: 214700 },
+      { time: "12:00", price: 214300 },
+      { time: "12:10", price: 214600 },
+      { time: "12:20", price: 214500 },
+    ],
+  },
+  {
+    symbol: "035420",
+    name: "NAVER",
+    market: "KOSPI",
+    currentPrice: 197800,
+    change: 2200,
+    changeRate: 1.12,
+    open: 195500,
+    high: 198600,
+    low: 194900,
+    prevClose: 195600,
+    volume: 1904123,
+    candles: [
+      { time: "09:00", price: 191800 },
+      { time: "09:10", price: 192400 },
+      { time: "09:20", price: 193000 },
+      { time: "09:30", price: 192700 },
+      { time: "09:40", price: 193600 },
+      { time: "09:50", price: 194200 },
+      { time: "10:00", price: 194000 },
+      { time: "10:10", price: 194900 },
+      { time: "10:20", price: 195100 },
+      { time: "10:30", price: 194700 },
+      { time: "10:40", price: 195800 },
+      { time: "10:50", price: 196400 },
+      { time: "11:00", price: 196100 },
+      { time: "11:10", price: 196900 },
+      { time: "11:20", price: 197200 },
+      { time: "11:30", price: 197000 },
+      { time: "11:40", price: 197600 },
+      { time: "11:50", price: 198000 },
+      { time: "12:00", price: 197400 },
+      { time: "12:10", price: 198300 },
+      { time: "12:20", price: 197800 },
+    ],
+  },
+];

features/trade/hooks/useCurrentPrice.ts

@@ -0,0 +1,53 @@
+import { useMemo } from "react";
+import type {
+  DashboardRealtimeTradeTick,
+  DashboardStockItem,
+  DashboardStockOrderBookResponse,
+} from "@/features/trade/types/trade.types";
+
+interface UseCurrentPriceParams {
+  stock?: DashboardStockItem | null;
+  latestTick: DashboardRealtimeTradeTick | null;
+  orderBook: DashboardStockOrderBookResponse | null;
+}
+
+export function useCurrentPrice({
+  stock,
+  latestTick,
+  orderBook,
+}: UseCurrentPriceParams) {
+  return useMemo(() => {
+    let currentPrice = stock?.currentPrice ?? 0;
+    let change = stock?.change ?? 0;
+    let changeRate = stock?.changeRate ?? 0;
+    const prevClose = stock?.prevClose ?? 0;
+
+    // 1. Priority: Realtime Tick (Trade WS)
+    if (latestTick?.price && latestTick.price > 0) {
+      currentPrice = latestTick.price;
+      change = latestTick.change;
+      changeRate = latestTick.changeRate;
+    }
+    // 2. Fallback: OrderBook Best Ask (Proxy for current price if no tick)
+    else if (
+      orderBook?.levels[0]?.askPrice &&
+      orderBook.levels[0].askPrice > 0
+    ) {
+      const askPrice = orderBook.levels[0].askPrice;
+      currentPrice = askPrice;
+
+      // Recalculate change/rate based on prevClose
+      if (prevClose > 0) {
+        change = currentPrice - prevClose;
+        changeRate = (change / prevClose) * 100;
+      }
+    }
+
+    return {
+      currentPrice,
+      change,
+      changeRate,
+      prevClose,
+    };
+  }, [stock, latestTick, orderBook]);
+}