improving look and feel

TASK.md

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+# Project Tasks
+
+## ✅ Completed Objectives
+- [x] Implement MVC architecture
+- [x] Create 6-digit code system for file sharing
+- [x] Build mobile-friendly upload system
+- [x] Implement download tracking and limits
+- [x] Add file expiry system
+- [x] Create modern UI with error handling
+
+## 🎯 Core Features Implemented
+
+### Architecture & Code Structure
+- [x] MVC pattern implementation
+  - [x] FileMetadata model
+  - [x] Upload/download controllers
+  - [x] Template-based views
+- [x] Clean separation of concerns
+- [x] Proper error handling
+- [x] Logging system
+
+### File Upload System
+- [x] Secure file handling
+- [x] Metadata tracking
+- [x] Configurable limits
+- [x] API response format
+
+### Download System
+- [x] Code validation
+- [x] Download tracking
+- [x] Auto cleanup
+- [x] User-friendly error pages
+- [x] Force download vs display
+
+### User Interface
+- [x] Modern design
+- [x] Mobile responsiveness
+- [x] Input validation
+- [x] Loading states
+- [x] Error feedback
+- [x] Success messages
+
+## 🚀 Future Enhancements
+
+### Security
+- [ ] Add rate limiting
+- [ ] Implement file type restrictions
+- [ ] Add optional password protection
+- [ ] CSRF protection
+
+### Features
+- [ ] Multi-file upload support
+- [ ] Progress bar for uploads
+- [ ] Email notifications
+- [ ] QR code generation
+- [ ] Preview for images/PDFs
+
+### Infrastructure
+- [ ] Add unit tests
+- [ ] Set up CI/CD pipeline
+- [ ] Implement persistent storage
+- [ ] Add monitoring/metrics
+- [ ] Create backup system
+
+### UI/UX
+- [ ] Dark mode support
+- [ ] Drag-and-drop uploads
+- [ ] Improved mobile UI
+- [ ] Accessibility improvements
+- [ ] Internationalization