Build a memory card matching game called "MindFlip".
- Grid of face-down cards — flip two at a time
- Match = cards stay revealed with a glow effect
- Difficulty: Easy (4x3), Medium (4x4), Hard (6x4)
- Themes: Animals (emoji), Space (emoji), Food (emoji)
- Move counter and timer
- Star rating: 3 stars under par moves, 2 stars close, 1 star over
- Win screen with confetti animation, time, moves, and stars
- Sound effects using Web Audio API (flip, match, win)
- Best scores per difficulty saved in localStorage
Design: gradient purple-blue background, white card faces, smooth flip animation (3D CSS transform), rounded cards.