Feat: 대시보드 추가

app/(auth)/forgot-password/page.tsx
- 비밀번호 초기화 페이지 레이아웃 정리 및 카드 스타일 개선

app/(auth)/login/page.tsx
- 로그인 페이지 레이아웃 경량화 및 메시지 표시 유지

app/(auth)/reset-password/page.tsx
- 리셋 비밀번호 페이지 레이아웃 정리

app/(auth)/signup/page.tsx
- 회원가입 페이지 레이아웃 정리 및 링크 배치 개선

app/(auth)/layout.tsx
- 인증 관련 공통 배경 레이아웃 추가 (그라디언트/블러 효과 분리)

app/(main)/layout.tsx
- 메인 레이아웃 추가 (헤더, 사이드바 포함)

app/(main)/page.tsx
- 대시보드 기본 페이지 추가 (위젯/플레이스홀더)

app/page.tsx
- 기존 메인 페이지 제거 (대시보드로 대체)

components/ui/avatar.tsx
- 아바타 UI 컴포넌트 추가

components/ui/dropdown-menu.tsx
- 드롭다운 메뉴 UI 컴포넌트 추가 (Radix 기반)

features/layout/components/header.tsx
- 헤더 컴포넌트 추가 (사용자 상태 표시 및 메뉴 연결)

features/layout/components/sidebar.tsx
- 사이드바 네비게이션 컴포넌트 추가

features/layout/components/user-menu.tsx
- 사용자 드롭다운 메뉴 추가 (로그아웃 등)

features/layout/types/index.ts
- 레이아웃 관련 타입 정의 추가

package.json
- Radix 드롭다운, Framer Motion 등 UI 관련 의존성 추가

package-lock.json
- 패키지 잠금파일 갱신 및 교체

- 인증 및 메인 영역 구조를 분리하고 공통 레이아웃과 재사용 가능한 UI 컴포넌트를 도입하여 향후 페이지 확장 및 유지보수성을 개선합니다

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

@@ -0,0 +1,85 @@
+import FormMessage from "@/components/form-message";
+import { requestPasswordReset } from "@/features/auth/actions";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import Link from "next/link";
+
+/**
+ * [비밀번호 찾기 페이지]
+ *
+ * 사용자가 비밀번호를 잊어버렸을 때 재설정 링크를 요청하는 페이지입니다.
+ * - 이메일 입력 폼 제공
+ * - 서버 액션(requestPasswordReset)과 연동
+ */
+export default async function ForgotPasswordPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ message?: string }>;
+}) {
+  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">
+      {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">
+        <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>
+          <CardTitle className="text-3xl font-bold tracking-tight">
+            비밀번호 재설정
+          </CardTitle>
+          <CardDescription className="text-base">
+            가입한 이메일 주소를 입력하시면 비밀번호 재설정 링크를 보내드립니다.
+            <br />
+            메일을 받지 못하셨다면 스팸함을 확인해 주세요.
+          </CardDescription>
+        </CardHeader>
+
+        <CardContent className="space-y-6">
+          <form className="space-y-5">
+            <div className="space-y-2">
+              <Label htmlFor="email" className="text-sm font-medium">
+                이메일
+              </Label>
+              <Input
+                id="email"
+                name="email"
+                type="email"
+                placeholder="name@example.com"
+                autoComplete="email"
+                required
+                className="h-11 transition-all duration-200"
+              />
+            </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"
+            >
+              재설정 링크 보내기
+            </Button>
+          </form>
+
+          <div className="text-center">
+            <Link
+              href="/login"
+              className="text-sm font-medium text-gray-700 hover:text-black dark:text-gray-300 dark:hover:text-white"
+            >
+              로그인 페이지로 돌아가기
+            </Link>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

app/(auth)/layout.tsx

@@ -0,0 +1,20 @@
+export default function AuthLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return (
+    <div className="relative flex min-h-screen items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 px-4 py-12 dark:from-black dark:via-gray-950 dark:to-gray-900">
+      {/* ========== 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" />
+
+      {/* ========== 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" />
+
+      {/* ========== 메인 콘텐츠 영역 ========== */}
+      {children}
+    </div>
+  );
+}

app/(auth)/login/page.tsx

@@ -0,0 +1,62 @@
+import FormMessage from "@/components/form-message";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import LoginForm from "@/features/auth/components/login-form";
+
+/**
+ * [로그인 페이지 컴포넌트]
+ *
+ * Modern UI with glassmorphism effect (유리 형태 디자인)
+ * - 투명 배경 + 블러 효과로 깊이감 표현
+ * - 그라디언트 배경으로 생동감 추가
+ * - shadcn/ui 컴포넌트로 일관된 디자인 시스템 유지
+ *
+ * @param searchParams - URL 쿼리 파라미터 (에러 메시지 전달용)
+ */
+export default async function LoginPage({
+  searchParams,
+}: {
+  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 ========== */}
+        <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>
+          {/* 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>
+      </Card>
+    </div>
+  );
+}

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

@@ -0,0 +1,64 @@
+import FormMessage from "@/components/form-message";
+import ResetPasswordForm from "@/features/auth/components/reset-password-form";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import { createClient } from "@/utils/supabase/server";
+import { redirect } from "next/navigation";
+
+/**
+ * [비밀번호 재설정 페이지]
+ *
+ * 이메일 링크를 타고 들어온 사용자가 새 비밀번호를 설정하는 페이지입니다.
+ * - URL에 포함된 토큰 검증은 Middleware 및 Auth Confirm Route에서 선행됩니다.
+ * - 유효한 세션(Recovery Mode)이 없으면 로그인 페이지로 리다이렉트됩니다.
+ */
+export default async function ResetPasswordPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ message?: string }>;
+}) {
+  const params = await searchParams;
+  const supabase = await createClient();
+
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
+  if (!user) {
+    const message = encodeURIComponent(
+      "유효하지 않은 재설정 링크이거나 만료되었습니다. 다시 시도해 주세요.",
+    );
+    redirect(`/login?message=${message}`);
+  }
+
+  const { message } = params;
+
+  return (
+    <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">
+        <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>
+          <CardTitle className="text-3xl font-bold tracking-tight">
+            비밀번호 재설정
+          </CardTitle>
+          <CardDescription className="text-base">
+            새 비밀번호를 입력해 주세요.
+          </CardDescription>
+        </CardHeader>
+
+        <CardContent className="space-y-6">
+          <ResetPasswordForm />
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

app/(auth)/signup/page.tsx

@@ -0,0 +1,55 @@
+import Link from "next/link";
+import FormMessage from "@/components/form-message";
+import SignupForm from "@/features/auth/components/signup-form";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+
+export default async function SignupPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ message: string }>;
+}) {
+  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">
+      {/* 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">
+        <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>
+          <CardTitle className="text-3xl font-bold tracking-tight">
+            회원가입
+          </CardTitle>
+          <CardDescription className="text-base">
+            몇 가지 정보만 입력하면 바로 시작할 수 있습니다.
+          </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">
+            이미 계정이 있으신가요?{" "}
+            <Link
+              href="/login"
+              className="font-semibold text-gray-900 transition-colors hover:text-black dark:text-gray-100 dark:hover:text-white"
+            >
+              로그인 하러 가기
+            </Link>
+          </p>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

app/(main)/layout.tsx

@@ -0,0 +1,18 @@
+import { Header } from "@/features/layout/components/header";
+import { Sidebar } from "@/features/layout/components/sidebar";
+
+export default function MainLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return (
+    <div className="flex min-h-screen flex-col bg-zinc-50 dark:bg-black">
+      <Header />
+      <div className="flex flex-1">
+        <Sidebar />
+        <main className="flex-1 w-full p-6 md:p-8 lg:p-10">{children}</main>
+      </div>
+    </div>
+  );
+}

app/(main)/page.tsx

@@ -0,0 +1,63 @@
+export default function DashboardPage() {
+  return (
+    <div className="space-y-6">
+      <div>
+        <h2 className="text-3xl font-bold tracking-tight">대시보드</h2>
+        <p className="text-muted-foreground">
+          자동매매 시스템 현황을 한눈에 확인하세요.
+        </p>
+      </div>
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-4">
+        {/* 예시 카드들 */}
+        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
+          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
+            <span className="text-sm font-medium text-muted-foreground">
+              총 자산
+            </span>
+            <span className="text-2xl font-bold">₩ 0</span>
+          </div>
+        </div>
+        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
+          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
+            <span className="text-sm font-medium text-muted-foreground">
+              평가 손익
+            </span>
+            <span className="text-2xl font-bold text-green-500">+0%</span>
+          </div>
+        </div>
+        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
+          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
+            <span className="text-sm font-medium text-muted-foreground">
+              실현 손익
+            </span>
+            <span className="text-2xl font-bold">₩ 0</span>
+          </div>
+        </div>
+        <div className="rounded-xl border bg-card text-card-foreground shadow p-6">
+          <div className="flex flex-col space-y-1.5 p-6 pt-0 px-0">
+            <span className="text-sm font-medium text-muted-foreground">
+              가동 봇
+            </span>
+            <span className="text-2xl font-bold">0개</span>
+          </div>
+        </div>
+      </div>
+
+      {/* 차트나 로그 영역 예시 */}
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-7">
+        <div className="col-span-4 rounded-xl border bg-card text-card-foreground shadow min-h-[300px] p-6">
+          <div className="text-lg font-semibold mb-4">매매 추입</div>
+          <div className="flex items-center justify-center h-full text-muted-foreground">
+            차트 영역 준비중...
+          </div>
+        </div>
+        <div className="col-span-3 rounded-xl border bg-card text-card-foreground shadow min-h-[300px] p-6">
+          <div className="text-lg font-semibold mb-4">최근 활동</div>
+          <div className="flex items-center justify-center h-full text-muted-foreground">
+            로그 영역 준비중...
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

app/forgot-password/page.tsx

@@ -1,94 +0,0 @@
-import FormMessage from "@/components/form-message";
-import { requestPasswordReset } from "@/features/auth/actions";
-import { Button } from "@/components/ui/button";
-import { Input } from "@/components/ui/input";
-import { Label } from "@/components/ui/label";
-import {
-  Card,
-  CardContent,
-  CardDescription,
-  CardHeader,
-  CardTitle,
-} from "@/components/ui/card";
-import Link from "next/link";
-
-/**
- * [비밀번호 찾기 페이지]
- *
- * 사용자가 비밀번호를 잊어버렸을 때 재설정 링크를 요청하는 페이지입니다.
- * - 이메일 입력 폼 제공
- * - 서버 액션(requestPasswordReset)과 연동
- */
-export default async function ForgotPasswordPage({
-  searchParams,
-}: {
-  searchParams: Promise<{ message?: string }>;
-}) {
-  const { message } = await searchParams;
-
-  return (
-    <div className="relative flex min-h-screen items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 px-4 py-12 dark:from-black dark:via-gray-950 dark:to-gray-900">
-      <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 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="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">
-          <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>
-            <CardTitle className="text-3xl font-bold tracking-tight">
-              비밀번호 재설정
-            </CardTitle>
-            <CardDescription className="text-base">
-              가입한 이메일 주소를 입력하시면 비밀번호 재설정 링크를
-              보내드립니다.
-              <br />
-              메일을 받지 못하셨다면 스팸함을 확인해 주세요.
-            </CardDescription>
-          </CardHeader>
-
-          <CardContent className="space-y-6">
-            <form className="space-y-5">
-              <div className="space-y-2">
-                <Label htmlFor="email" className="text-sm font-medium">
-                  이메일
-                </Label>
-                <Input
-                  id="email"
-                  name="email"
-                  type="email"
-                  placeholder="name@example.com"
-                  autoComplete="email"
-                  required
-                  className="h-11 transition-all duration-200"
-                />
-              </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"
-              >
-                재설정 링크 보내기
-              </Button>
-            </form>
-
-            <div className="text-center">
-              <Link
-                href="/login"
-                className="text-sm font-medium text-gray-700 hover:text-black dark:text-gray-300 dark:hover:text-white"
-              >
-                로그인 페이지로 돌아가기
-              </Link>
-            </div>
-          </CardContent>
-        </Card>
-      </div>
-    </div>
-  );
-}

app/login/page.tsx

@@ -1,85 +0,0 @@
-import FormMessage from "@/components/form-message";
-import {
-  Card,
-  CardContent,
-  CardDescription,
-  CardHeader,
-  CardTitle,
-} from "@/components/ui/card";
-import LoginForm from "@/features/auth/components/login-form";
-
-/**
- * [로그인 페이지 컴포넌트]
- *
- * Modern UI with glassmorphism effect (유리 형태 디자인)
- * - 투명 배경 + 블러 효과로 깊이감 표현
- * - 그라디언트 배경으로 생동감 추가
- * - shadcn/ui 컴포넌트로 일관된 디자인 시스템 유지
- *
- * @param searchParams - URL 쿼리 파라미터 (에러 메시지 전달용)
- */
-export default async function LoginPage({
-  searchParams,
-}: {
-  searchParams: Promise<{ message: string }>;
-}) {
-  // URL에서 메시지 파라미터 추출 (로그인 실패 시 에러 메시지 표시)
-  const { message } = await searchParams;
-
-  return (
-    <div className="relative flex min-h-screen items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 px-4 py-12 dark:from-black dark:via-gray-950 dark:to-gray-900">
-      {/* ========== 배경 그라디언트 레이어 ========== */}
-      {/* 웹 페이지 전체 배경을 그라디언트로 채웁니다 */}
-      {/* 라이트 모드: 부드러운 그레이 톤 (gray → white → gray) */}
-      {/* 다크 모드: 깊은 블랙 톤으로 고급스러운 느낌 */}
-
-      {/* 추가 그라디언트 효과 1: 우상단에서 시작하는 원형 그라디언트 */}
-      <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" />
-
-      {/* 추가 그라디언트 효과 2: 좌하단에서 시작하는 원형 그라디언트 */}
-      <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" />
-
-      {/* ========== 애니메이션 블러 효과 ========== */}
-      {/* 부드럽게 깜빡이는 원형 블러로 생동감 표현 */}
-      {/* animate-pulse: 1.5초 주기로 opacity 변화 */}
-      <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" />
-      {/* delay-700: 700ms 지연으로 교차 애니메이션 효과 */}
-      <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" />
-
-      {/* ========== 메인 콘텐츠 영역 ========== */}
-      {/* z-10: 배경보다 위에 표시 */}
-      {/* animate-in: 페이지 로드 시 fade-in + slide-up 애니메이션 */}
-      <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 ========== */}
-          <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>
-            {/* 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>
-        </Card>
-      </div>
-    </div>
-  );
-}

app/page.tsx

@@ -1,114 +0,0 @@
-import Image from "next/image";
-import { signout } from "@/features/auth/actions";
-import { createClient } from "@/utils/supabase/server";
-import { Button } from "@/components/ui/button";
-
-/**
- * [메인 페이지 컴포넌트]
- *
- * 로그인한 사용자만 접근 가능 (Middleware에서 보호)
- * - 사용자 정보 표시 (이메일, 프로필 아바타)
- * - 로그아웃 버튼 제공
- */
-export default async function Home() {
-  // 현재 로그인한 사용자 정보 가져오기
-  // Middleware에서 이미 인증을 확인했으므로 여기서는 user가 항상 존재함
-  const supabase = await createClient();
-  const {
-    data: { user },
-  } = await supabase.auth.getUser();
-
-  return (
-    <div className="flex min-h-screen items-center justify-center bg-zinc-50 font-sans dark:bg-black">
-      <main className="flex min-h-screen w-full max-w-3xl flex-col items-center justify-between py-32 px-16 bg-white dark:bg-black sm:items-start">
-        {/* ========== 헤더: 로그인 정보 및 로그아웃 버튼 ========== */}
-        <div className="flex w-full items-center justify-between">
-          {/* 사용자 프로필 표시 */}
-          <div className="flex items-center gap-3">
-            {/* 프로필 아바타: 이메일 첫 글자 표시 */}
-            <div className="flex h-10 w-10 items-center justify-center rounded-full bg-gradient-to-br from-indigo-500 to-purple-600 text-white font-semibold">
-              {user?.email?.charAt(0).toUpperCase() || "U"}
-            </div>
-            {/* 이메일 및 로그인 상태 텍스트 */}
-            <div>
-              <p className="text-sm font-medium text-gray-900 dark:text-white">
-                {user?.email || "사용자"}
-              </p>
-              <p className="text-xs text-gray-500 dark:text-gray-400">
-                로그인됨
-              </p>
-            </div>
-          </div>
-          {/* 로그아웃 폼 */}
-          {/* formAction: 서버 액션(signout)을 호출하여 로그아웃 처리 */}
-          <form>
-            <Button
-              formAction={signout}
-              variant="outline"
-              size="sm"
-              className="text-sm"
-            >
-              로그아웃
-            </Button>
-          </form>
-        </div>
-
-        <Image
-          className="dark:invert"
-          src="/next.svg"
-          alt="Next.js logo"
-          width={100}
-          height={20}
-          priority
-        />
-        <div className="flex flex-col items-center gap-6 text-center sm:items-start sm:text-left">
-          <h1 className="max-w-xs text-3xl font-semibold leading-10 tracking-tight text-black dark:text-zinc-50">
-            To get started, edit the page.tsx file.
-          </h1>
-          <p className="max-w-md text-lg leading-8 text-zinc-600 dark:text-zinc-400">
-            Looking for a starting point or more instructions? Head over to{" "}
-            <a
-              href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Templates
-            </a>{" "}
-            or the{" "}
-            <a
-              href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-              className="font-medium text-zinc-950 dark:text-zinc-50"
-            >
-              Learning
-            </a>{" "}
-            center.
-          </p>
-        </div>
-        <div className="flex flex-col gap-4 text-base font-medium sm:flex-row">
-          <a
-            className="flex h-12 w-full items-center justify-center gap-2 rounded-full bg-foreground px-5 text-background transition-colors hover:bg-[#383838] dark:hover:bg-[#ccc] md:w-[158px]"
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={16}
-              height={16}
-            />
-            Deploy Now
-          </a>
-          <a
-            className="flex h-12 w-full items-center justify-center rounded-full border border-solid border-black/[.08] px-5 transition-colors hover:border-transparent hover:bg-black/[.04] dark:border-white/[.145] dark:hover:bg-[#1a1a1a] md:w-[158px]"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            Documentation
-          </a>
-        </div>
-      </main>
-    </div>
-  );
-}

app/reset-password/page.tsx

@@ -1,72 +0,0 @@
-import FormMessage from "@/components/form-message";
-import ResetPasswordForm from "@/features/auth/components/reset-password-form";
-import {
-  Card,
-  CardContent,
-  CardDescription,
-  CardHeader,
-  CardTitle,
-} from "@/components/ui/card";
-import { createClient } from "@/utils/supabase/server";
-import { redirect } from "next/navigation";
-
-/**
- * [비밀번호 재설정 페이지]
- *
- * 이메일 링크를 타고 들어온 사용자가 새 비밀번호를 설정하는 페이지입니다.
- * - URL에 포함된 토큰 검증은 Middleware 및 Auth Confirm Route에서 선행됩니다.
- * - 유효한 세션(Recovery Mode)이 없으면 로그인 페이지로 리다이렉트됩니다.
- */
-export default async function ResetPasswordPage({
-  searchParams,
-}: {
-  searchParams: Promise<{ message?: string }>;
-}) {
-  const params = await searchParams;
-  const supabase = await createClient();
-
-  const {
-    data: { user },
-  } = await supabase.auth.getUser();
-
-  if (!user) {
-    const message = encodeURIComponent(
-      "유효하지 않은 재설정 링크이거나 만료되었습니다. 다시 시도해 주세요.",
-    );
-    redirect(`/login?message=${message}`);
-  }
-
-  const { message } = params;
-
-  return (
-    <div className="relative flex min-h-screen items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 px-4 py-12 dark:from-black dark:via-gray-950 dark:to-gray-900">
-      <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 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="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">
-          <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>
-            <CardTitle className="text-3xl font-bold tracking-tight">
-              비밀번호 재설정
-            </CardTitle>
-            <CardDescription className="text-base">
-              새 비밀번호를 입력해 주세요.
-            </CardDescription>
-          </CardHeader>
-
-          <CardContent className="space-y-6">
-            <ResetPasswordForm />
-          </CardContent>
-        </Card>
-      </div>
-    </div>
-  );
-}

app/signup/page.tsx

@@ -1,65 +0,0 @@
-import Link from "next/link";
-import FormMessage from "@/components/form-message";
-import SignupForm from "@/features/auth/components/signup-form";
-import {
-  Card,
-  CardContent,
-  CardDescription,
-  CardHeader,
-  CardTitle,
-} from "@/components/ui/card";
-
-export default async function SignupPage({
-  searchParams,
-}: {
-  searchParams: Promise<{ message: string }>;
-}) {
-  const { message } = await searchParams;
-
-  return (
-    <div className="relative flex min-h-screen items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 px-4 py-12 dark:from-black dark:via-gray-950 dark:to-gray-900">
-      {/* 배경 그라데이션 효과 */}
-      <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" />
-
-      {/* 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="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">
-          <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>
-            <CardTitle className="text-3xl font-bold tracking-tight">
-              회원가입
-            </CardTitle>
-            <CardDescription className="text-base">
-              몇 가지 정보만 입력하면 바로 시작할 수 있습니다.
-            </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">
-              이미 계정이 있으신가요?{" "}
-              <Link
-                href="/login"
-                className="font-semibold text-gray-900 transition-colors hover:text-black dark:text-gray-100 dark:hover:text-white"
-              >
-                로그인 하러 가기
-              </Link>
-            </p>
-          </CardContent>
-        </Card>
-      </div>
-    </div>
-  );
-}

components/ui/avatar.tsx

@@ -0,0 +1,109 @@
+"use client"
+
+import * as React from "react"
+import { Avatar as AvatarPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Avatar({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Root> & {
+  size?: "default" | "sm" | "lg"
+}) {
+  return (
+    <AvatarPrimitive.Root
+      data-slot="avatar"
+      data-size={size}
+      className={cn(
+        "group/avatar relative flex size-8 shrink-0 overflow-hidden rounded-full select-none data-[size=lg]:size-10 data-[size=sm]:size-6",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarImage({
+  className,
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Image>) {
+  return (
+    <AvatarPrimitive.Image
+      data-slot="avatar-image"
+      className={cn("aspect-square size-full", className)}
+      {...props}
+    />
+  )
+}
+
+function AvatarFallback({
+  className,
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Fallback>) {
+  return (
+    <AvatarPrimitive.Fallback
+      data-slot="avatar-fallback"
+      className={cn(
+        "bg-muted text-muted-foreground flex size-full items-center justify-center rounded-full text-sm group-data-[size=sm]/avatar:text-xs",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarBadge({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="avatar-badge"
+      className={cn(
+        "bg-primary text-primary-foreground ring-background absolute right-0 bottom-0 z-10 inline-flex items-center justify-center rounded-full ring-2 select-none",
+        "group-data-[size=sm]/avatar:size-2 group-data-[size=sm]/avatar:[&>svg]:hidden",
+        "group-data-[size=default]/avatar:size-2.5 group-data-[size=default]/avatar:[&>svg]:size-2",
+        "group-data-[size=lg]/avatar:size-3 group-data-[size=lg]/avatar:[&>svg]:size-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="avatar-group"
+      className={cn(
+        "*:data-[slot=avatar]:ring-background group/avatar-group flex -space-x-2 *:data-[slot=avatar]:ring-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AvatarGroupCount({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="avatar-group-count"
+      className={cn(
+        "bg-muted text-muted-foreground ring-background relative flex size-8 shrink-0 items-center justify-center rounded-full text-sm ring-2 group-has-data-[size=lg]/avatar-group:size-10 group-has-data-[size=sm]/avatar-group:size-6 [&>svg]:size-4 group-has-data-[size=lg]/avatar-group:[&>svg]:size-5 group-has-data-[size=sm]/avatar-group:[&>svg]:size-3",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Avatar,
+  AvatarImage,
+  AvatarFallback,
+  AvatarBadge,
+  AvatarGroup,
+  AvatarGroupCount,
+}

components/ui/dropdown-menu.tsx

@@ -0,0 +1,257 @@
+"use client"
+
+import * as React from "react"
+import { CheckIcon, ChevronRightIcon, CircleIcon } from "lucide-react"
+import { DropdownMenu as DropdownMenuPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function DropdownMenu({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Root>) {
+  return <DropdownMenuPrimitive.Root data-slot="dropdown-menu" {...props} />
+}
+
+function DropdownMenuPortal({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Portal>) {
+  return (
+    <DropdownMenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />
+  )
+}
+
+function DropdownMenuTrigger({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Trigger>) {
+  return (
+    <DropdownMenuPrimitive.Trigger
+      data-slot="dropdown-menu-trigger"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuContent({
+  className,
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Content>) {
+  return (
+    <DropdownMenuPrimitive.Portal>
+      <DropdownMenuPrimitive.Content
+        data-slot="dropdown-menu-content"
+        sideOffset={sideOffset}
+        className={cn(
+          "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 max-h-(--radix-dropdown-menu-content-available-height) min-w-[8rem] origin-(--radix-dropdown-menu-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border p-1 shadow-md",
+          className
+        )}
+        {...props}
+      />
+    </DropdownMenuPrimitive.Portal>
+  )
+}
+
+function DropdownMenuGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Group>) {
+  return (
+    <DropdownMenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />
+  )
+}
+
+function DropdownMenuItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Item> & {
+  inset?: boolean
+  variant?: "default" | "destructive"
+}) {
+  return (
+    <DropdownMenuPrimitive.Item
+      data-slot="dropdown-menu-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 dark:data-[variant=destructive]:focus:bg-destructive/20 data-[variant=destructive]:focus:text-destructive data-[variant=destructive]:*:[svg]:!text-destructive [&_svg:not([class*='text-'])]:text-muted-foreground relative flex cursor-default items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-[disabled]:pointer-events-none data-[disabled]:opacity-50 data-[inset]:pl-8 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuCheckboxItem({
+  className,
+  children,
+  checked,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.CheckboxItem>) {
+  return (
+    <DropdownMenuPrimitive.CheckboxItem
+      data-slot="dropdown-menu-checkbox-item"
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      checked={checked}
+      {...props}
+    >
+      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CheckIcon className="size-4" />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.CheckboxItem>
+  )
+}
+
+function DropdownMenuRadioGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioGroup>) {
+  return (
+    <DropdownMenuPrimitive.RadioGroup
+      data-slot="dropdown-menu-radio-group"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuRadioItem({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioItem>) {
+  return (
+    <DropdownMenuPrimitive.RadioItem
+      data-slot="dropdown-menu-radio-item"
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CircleIcon className="size-2 fill-current" />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.RadioItem>
+  )
+}
+
+function DropdownMenuLabel({
+  className,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Label> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.Label
+      data-slot="dropdown-menu-label"
+      data-inset={inset}
+      className={cn(
+        "px-2 py-1.5 text-sm font-medium data-[inset]:pl-8",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Separator>) {
+  return (
+    <DropdownMenuPrimitive.Separator
+      data-slot="dropdown-menu-separator"
+      className={cn("bg-border -mx-1 my-1 h-px", className)}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="dropdown-menu-shortcut"
+      className={cn(
+        "text-muted-foreground ml-auto text-xs tracking-widest",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSub({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Sub>) {
+  return <DropdownMenuPrimitive.Sub data-slot="dropdown-menu-sub" {...props} />
+}
+
+function DropdownMenuSubTrigger({
+  className,
+  inset,
+  children,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubTrigger> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.SubTrigger
+      data-slot="dropdown-menu-sub-trigger"
+      data-inset={inset}
+      className={cn(
+        "focus:bg-accent focus:text-accent-foreground data-[state=open]:bg-accent data-[state=open]:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground flex cursor-default items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-[inset]:pl-8 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRightIcon className="ml-auto size-4" />
+    </DropdownMenuPrimitive.SubTrigger>
+  )
+}
+
+function DropdownMenuSubContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubContent>) {
+  return (
+    <DropdownMenuPrimitive.SubContent
+      data-slot="dropdown-menu-sub-content"
+      className={cn(
+        "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 min-w-[8rem] origin-(--radix-dropdown-menu-content-transform-origin) overflow-hidden rounded-md border p-1 shadow-lg",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  DropdownMenu,
+  DropdownMenuPortal,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuGroup,
+  DropdownMenuLabel,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioGroup,
+  DropdownMenuRadioItem,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuSub,
+  DropdownMenuSubTrigger,
+  DropdownMenuSubContent,
+}

features/layout/components/header.tsx

@@ -0,0 +1,34 @@
+import { createClient } from "@/utils/supabase/server";
+import Link from "next/link";
+import { UserMenu } from "./user-menu";
+import { Button } from "@/components/ui/button";
+
+export async function Header() {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
+  return (
+    <header className="sticky top-0 z-40 flex h-14 w-full items-center justify-between border-b border-zinc-200 bg-white/75 px-6 backdrop-blur-md transition-all dark:border-zinc-800 dark:bg-black/75">
+      <div className="flex items-center gap-2">
+        <Link href="/" className="flex items-center gap-2">
+          <div className="h-6 w-6 rounded-md bg-zinc-900 dark:bg-zinc-50" />
+          <span className="text-lg font-bold tracking-tight text-zinc-900 dark:text-zinc-50">
+            AutoTrade
+          </span>
+        </Link>
+      </div>
+
+      <div className="flex items-center gap-4">
+        {user ? (
+          <UserMenu user={user} />
+        ) : (
+          <Button asChild variant="default" size="sm">
+            <Link href="/login">로그인</Link>
+          </Button>
+        )}
+      </div>
+    </header>
+  );
+}

features/layout/components/sidebar.tsx

@@ -0,0 +1,80 @@
+"use client";
+
+import { cn } from "@/lib/utils";
+import { BarChart2, Home, Settings, User, Wallet } from "lucide-react";
+import Link from "next/link";
+import { usePathname } from "next/navigation";
+import { MenuItem } from "../types";
+
+const MENU_ITEMS: MenuItem[] = [
+  {
+    title: "대시보드",
+    href: "/",
+    icon: Home,
+    variant: "default",
+    matchExact: true,
+  },
+  {
+    title: "자동매매",
+    href: "/trade",
+    icon: BarChart2,
+    variant: "ghost",
+  },
+  {
+    title: "자산현황",
+    href: "/assets",
+    icon: Wallet,
+    variant: "ghost",
+  },
+  {
+    title: "프로필",
+    href: "/profile",
+    icon: User,
+    variant: "ghost",
+  },
+  {
+    title: "설정",
+    href: "/settings",
+    icon: Settings,
+    variant: "ghost",
+  },
+];
+
+export function Sidebar() {
+  const pathname = usePathname();
+
+  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">
+        {MENU_ITEMS.map((item) => {
+          const isActive = item.matchExact
+            ? pathname === item.href
+            : pathname.startsWith(item.href);
+
+          return (
+            <Link
+              key={item.href}
+              href={item.href}
+              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",
+                isActive
+                  ? "bg-zinc-100 text-zinc-900 dark:bg-zinc-800 dark:text-zinc-50"
+                  : "text-zinc-500 dark:text-zinc-400",
+              )}
+            >
+              <item.icon
+                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",
+                )}
+              />
+              {item.title}
+            </Link>
+          );
+        })}
+      </div>
+    </aside>
+  );
+}

features/layout/components/user-menu.tsx

@@ -0,0 +1,70 @@
+"use client";
+
+import { signout } from "@/features/auth/actions";
+import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuLabel,
+  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";
+
+interface UserMenuProps {
+  user: User | null;
+}
+
+export function UserMenu({ user }: UserMenuProps) {
+  const router = useRouter();
+
+  if (!user) return null;
+
+  return (
+    <DropdownMenu>
+      <DropdownMenuTrigger asChild>
+        <button className="flex items-center gap-2 outline-none">
+          <Avatar className="h-8 w-8 transition-opacity hover:opacity-80">
+            <AvatarImage src={user.user_metadata?.avatar_url} />
+            <AvatarFallback className="bg-linear-to-br from-indigo-500 to-purple-600 text-white text-xs font-bold">
+              {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?.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}>
+          <DropdownMenuItem asChild>
+            <button className="w-full text-red-600 dark:text-red-400">
+              <LogOut className="mr-2 h-4 w-4" />
+              <span>로그아웃</span>
+            </button>
+          </DropdownMenuItem>
+        </form>
+      </DropdownMenuContent>
+    </DropdownMenu>
+  );
+}

features/layout/types/index.ts

@@ -0,0 +1,9 @@
+import { LucideIcon } from "lucide-react";
+
+export interface MenuItem {
+  title: string;
+  href: string;
+  icon: LucideIcon;
+  variant: "default" | "ghost";
+  matchExact?: boolean;
+}

package.json

@@ -11,6 +11,7 @@
   "dependencies": {
     "@hookform/resolvers": "^5.2.2",
     "@radix-ui/react-checkbox": "^1.3.3",
+    "@radix-ui/react-dropdown-menu": "^2.1.16",
     "@radix-ui/react-label": "^2.1.8",
     "@radix-ui/react-separator": "^1.1.8",
     "@radix-ui/react-slot": "^1.2.4",
@@ -20,8 +21,10 @@
     "@tanstack/react-query-devtools": "^5.91.3",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
+    "framer-motion": "^12.31.0",
     "lucide-react": "^0.563.0",
     "next": "16.1.6",
+    "radix-ui": "^1.4.3",
     "react": "19.2.3",
     "react-dom": "19.2.3",
     "react-hook-form": "^7.71.1",