- Scene transitions: scale+slide (game-like) instead of horizontal slide (web-like)
- Buttons: more aggressive scale on press (0.92 in 50ms)
- Cards: snappier press response (0.96 in 80ms)
- New animation classes: .shake, .pop-in, .bounce-in, .slide-up
- Toast: spring bounce entrance, reward/error variants
- Keyframes: coinFly, bounceIn, popIn, shake for game events
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>