Sidebar Clock

A minimalist sidebar clock with stopwatch, timer, and Pomodoro. Customizable fonts, themes, and persistent background tracking.

## Features

⏰ **Clock**
- Real-time display with day, hours, minutes, seconds
- 12H/24H format switch

⏱️ **Stopwatch**
- Start, pause, reset
- Background persistence - keeps running when sidebar is closed

⏲️ **Timer**
- Custom countdown (hours, minutes, seconds)
- Progress ring visualization
- Audio alert on completion
- Persistent state across sessions

🍅 **Pomodoro**
- 25min work / 5min break / 15min long break
- Auto long break after 4 sessions
- Session counter
- Background tracking - never miss a session
- Audio notifications

⚙️ **Settings** *(New)*
- 3 monospace fonts: JetBrains Mono, Digital-7, Chivo Mono
- Theme backgrounds
- 12H/24H clock format
- All settings sync across devices

## Why Sidebar Clock?

✓ **Minimal** - No clutter, just time tools
✓ **Persistent** - Timers run in background
✓ **Private** - No data collection
✓ **Ad-free** - Pure functionality

## Quick Start

1. Click toolbar icon to open sidebar
2. Navigate: ⏰ Clock / ⏱️ Stopwatch / ⏲️ Timer / 🍅 Pomodoro / ⚙️ Settings
3. Customize fonts and themes in Settings

## Requirements
- Chrome 114+
- Works offline