diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..428616c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,118 @@
+# ========================================
+# Dependencies (의존성)
+# ========================================
+node_modules/
+.pnp/
+.pnp.js
+
+# ========================================
+# Build outputs (빌드 출력물)
+# ========================================
+.next/
+out/
+build/
+dist/
+
+# ========================================
+# Testing (테스트)
+# ========================================
+coverage/
+.nyc_output/
+
+# ========================================
+# Environment files (환경변수 파일)
+# ========================================
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+.env*.local
+
+# ========================================
+# IDE & Editor (에디터 설정)
+# ========================================
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# ========================================
+# OS generated files (OS 생성 파일)
+# ========================================
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+desktop.ini
+
+# ========================================
+# Debug logs (디버그 로그)
+# ========================================
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+lerna-debug.log*
+
+# ========================================
+# TypeScript (타입스크립트)
+# ========================================
+*.tsbuildinfo
+next-env.d.ts
+
+# ========================================
+# Turbopack (터보팩)
+# ========================================
+.turbo/
+
+# ========================================
+# Vercel (배포 관련)
+# ========================================
+.vercel/
+
+# ========================================
+# PWA files (PWA 관련)
+# ========================================
+public/sw.js
+public/workbox-*.js
+public/worker-*.js
+public/sw.js.map
+public/workbox-*.js.map
+
+# ========================================
+# Misc (기타)
+# ========================================
+*.pem
+*.log
+*.pid
+*.seed
+*.pid.lock
+
+# ========================================
+# Lock files (선택 - 협업 시 주석 해제)
+# ========================================
+# package-lock.json
+# yarn.lock
+# pnpm-lock.yaml
+
+# ========================================
+# Sentry (에러 모니터링)
+# ========================================
+.sentryclirc
+
+# ========================================
+# Storybook (스토리북)
+# ========================================
+storybook-static/
+
+# ========================================
+# Local files (로컬 전용)
+# ========================================
+*.local
+.cache/
+node_modules