# Todo List App

A simple, modern todo list application built with vanilla HTML, CSS, and JavaScript.

## Features

- ✅ Add new tasks
- ✅ Mark tasks as complete/incomplete
- ✅ Delete tasks
- ✅ Persistent storage (tasks saved in browser localStorage)
- ✅ Responsive design
- ✅ Keyboard support (Enter key to add tasks)

## How to Use

1. Open `index.html` in your web browser
2. Type a task in the input field
3. Click "Add" or press Enter to add the task
4. Check the checkbox to mark a task as complete
5. Click "Delete" to remove a task

## Technical Details

- Pure vanilla JavaScript (no frameworks or dependencies)
- Uses browser localStorage for data persistence
- Modern CSS with gradient background and smooth animations
- Fully responsive design that works on desktop and mobile