## Features - Fullscreen button (⛶) in header to toggle fullscreen mode - Wake Lock API integration to keep screen on while using the app - Sun icon (☀) indicator shows wake lock status (bright = active) ## Wake Lock behavior - Automatically requests wake lock when page loads - Re-acquires wake lock when returning to the page - Visual indicator pulses when active - Gracefully hidden if Wake Lock API not supported ## Fullscreen - Works on Android Chrome and desktop browsers - iOS Safari has limited support (no fullscreen API) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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