Spacing & Layout Fixes:
- Fixed bottom nav overlapping content (added 24px extra padding)
- Fixed profile stat grid overflow (4-column grid, 2-col on small mobile)
- Fixed ludo mobile panel cramped (more padding + margin-bottom)
- Fixed ludo board wrapper spacing on mobile

Sounds (Ludo):
- Dice roll sound + haptic vibration on every roll
- Move sound on piece placement
- Capture sound + stronger vibration on kills
- Six rolled special sound
- Home reached celebration sound
- Win/lose game end sounds
- Celebration overlay on human win

Sounds (Chess):
- Added celebration overlay on chess win

Haptic Feedback:
- Button ripple tap vibration (5ms)
- Dice roll vibration (15ms)
- Capture vibration (30ms)
- App.vibrate() helper

Visual Improvements:
- Better avatar placeholder (gradient background)
- Better empty state (flex column, centered, larger padding)
- Better input focus glow (3px cyan ring)
- Better button active states (darker variants)
- Animated gradient text utility (.text-gradient)
- Progress bar component
- Notification dot component
- Divider with text component
- Pill selection group component
- Section divider utility
- Game result animation (scale-in)
- Action pulse animation utility
- Focus-visible outlines for a11y
- Better list item tap feedback
- Better card-body padding on mobile (14px)
- Games Hub subtitle text
- Proper game-specific icons (domino, backgammon, cards)
- Stat grid 4-column variant with mobile responsive fallback
- Gold button shimmer animation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>