Phase 2 (P1):
- Pull-to-refresh on mobile (touch gesture + indicator)
- Bottom sheet modal system (App.showSheet/hideSheet)
- Enhanced toasts with icons, progress bar, swipe-to-dismiss
- Nav sliding active indicator (vertical bar desktop, horizontal mobile)
- Counter/number animations on profile load
- Request caching (App.cachedFetch with 30s TTL)
- Responsive typography scale (clamp-based)
- Safe area handling for all edges
- Animated gradient background on Games Hub
- Elevation/depth system (4 levels)
- Ludo capture explosion particles
- Sound feedback system (Web Audio synthesized tones)
- Win streak fire badge on profile nav
- Landscape game layout adjustments
- Gold shimmer sweep on .btn-gold

Phase 3 (P2):
- 3D dice roll animation (perspective + rotateX/Y)
- Achievement celebration overlay (confetti + gold title)
- Gold shimmer effect utility class
- Clock urgency visual (pulse <30s, shake <10s)
- Page prefetching for adjacent routes
- Soft navigation helper (App.navigate with exit animation)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>