diff --git a/frontend/README.md b/frontend/README.md
index 7dbf7eb..048bd9a 100644
--- a/frontend/README.md
+++ b/frontend/README.md
@@ -1,73 +1,157 @@
-# React + TypeScript + Vite
+# AgenticRAG Frontend
 
-This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
+Modern React-based web interface for AgenticRAG - Agentic Retrieval System powered by datapizza-ai.
 
-Currently, two official plugins are available:
+## 🚀 Features
 
-- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Oxc](https://oxc.rs)
-- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/)
+- **Authentication**: API Key-based login
+- **Dashboard**: System overview with stats and recent documents
+- **Documents**: Drag & drop upload, document management
+- **Chat**: Conversational interface with RAG and source citations
+- **Settings**: Theme toggle (light/dark), LLM provider selection
+- **Responsive**: Mobile-friendly design
 
-## React Compiler
+## 🛠️ Tech Stack
 
-The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
+- **React 18** - UI library
+- **TypeScript** - Type safety
+- **Vite** - Build tool
+- **Tailwind CSS** - Styling
+- **shadcn/ui** - UI components
+- **Zustand** - State management
+- **Axios** - HTTP client
+- **React Router** - Routing
 
-## Expanding the ESLint configuration
+## 📦 Installation
 
-If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
-
-```js
-export default defineConfig([
-  globalIgnores(['dist']),
-  {
-    files: ['**/*.{ts,tsx}'],
-    extends: [
-      // Other configs...
-
-      // Remove tseslint.configs.recommended and replace with this
-      tseslint.configs.recommendedTypeChecked,
-      // Alternatively, use this for stricter rules
-      tseslint.configs.strictTypeChecked,
-      // Optionally, add this for stylistic rules
-      tseslint.configs.stylisticTypeChecked,
-
-      // Other configs...
-    ],
-    languageOptions: {
-      parserOptions: {
-        project: ['./tsconfig.node.json', './tsconfig.app.json'],
-        tsconfigRootDir: import.meta.dirname,
-      },
-      // other options...
-    },
-  },
-])
+```bash
+cd frontend
+npm install
 ```
 
-You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
+## 🔧 Development
 
-```js
-// eslint.config.js
-import reactX from 'eslint-plugin-react-x'
-import reactDom from 'eslint-plugin-react-dom'
+```bash
+# Start development server
+npm run dev
 
-export default defineConfig([
-  globalIgnores(['dist']),
-  {
-    files: ['**/*.{ts,tsx}'],
-    extends: [
-      // Other configs...
-      // Enable lint rules for React
-      reactX.configs['recommended-typescript'],
-      // Enable lint rules for React DOM
-      reactDom.configs.recommended,
-    ],
-    languageOptions: {
-      parserOptions: {
-        project: ['./tsconfig.node.json', './tsconfig.app.json'],
-        tsconfigRootDir: import.meta.dirname,
-      },
-      // other options...
-    },
-  },
-])
+# Server runs at http://localhost:3000
 ```
+
+## 🔨 Build
+
+```bash
+# Build for production
+npm run build
+
+# Preview production build
+npm run preview
+```
+
+## 🌐 Environment Variables
+
+Create `.env` file in frontend directory:
+
+```env
+VITE_API_URL=http://localhost:8000
+```
+
+## 📁 Project Structure
+
+```
+frontend/
+├── src/
+│   ├── components/
+│   │   ├── layout/      # Layout components
+│   │   └── ui/          # shadcn/ui components
+│   ├── pages/           # Route pages
+│   │   ├── Login.tsx
+│   │   ├── Dashboard.tsx
+│   │   ├── Documents.tsx
+│   │   ├── Chat.tsx
+│   │   └── Settings.tsx
+│   ├── api/
+│   │   └── client.ts    # API client
+│   ├── stores/
+│   │   ├── authStore.ts
+│   │   ├── chatStore.ts
+│   │   └── settingsStore.ts
+│   ├── types/
+│   │   └── index.ts     # TypeScript types
+│   ├── lib/
+│   │   └── utils.ts     # Utility functions
+│   ├── App.tsx
+│   └── main.tsx
+├── public/
+├── index.html
+├── package.json
+├── tailwind.config.js
+├── tsconfig.json
+└── vite.config.ts
+```
+
+## 🔐 Authentication
+
+The frontend supports API Key authentication:
+
+1. Enter your API key on the login page
+2. The key is stored in localStorage
+3. Sent with every request via `X-API-Key` header
+
+## 🎨 Customization
+
+### Themes
+- Edit `src/index.css` for CSS variables
+- Toggle between light/dark/system in Settings
+
+### API Configuration
+- Update `vite.config.ts` proxy settings
+- Or set `VITE_API_URL` environment variable
+
+### Adding Components
+
+```bash
+# Install shadcn/ui component
+npx shadcn-ui@latest add button
+```
+
+## 📝 Available Scripts
+
+| Script | Description |
+|--------|-------------|
+| `npm run dev` | Start dev server |
+| `npm run build` | Build for production |
+| `npm run preview` | Preview production build |
+| `npm run lint` | Run ESLint |
+
+## 🔗 API Endpoints
+
+The frontend connects to these API endpoints:
+
+- `GET /api/health` - Health check
+- `GET /api/v1/documents` - List documents
+- `POST /api/v1/documents` - Upload document
+- `DELETE /api/v1/documents/:id` - Delete document
+- `POST /api/v1/query` - Query with RAG
+- `POST /api/v1/chat` - Chat endpoint
+- `GET /api/v1/providers` - List providers
+- `GET /api/v1/config` - Get config
+
+## 🐛 Troubleshooting
+
+### Build Errors
+If you see TypeScript errors about unused variables:
+```bash
+# Check for unused imports
+npm run lint
+```
+
+### API Connection Issues
+Make sure the backend is running on port 8000, or update the proxy in `vite.config.ts`.
+
+### CORS Errors
+The Vite dev server proxies `/api` requests to the backend. For production, ensure CORS is configured on the backend.
+
+## 📄 License
+
+Same as the main project.