Memory Card Game

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A fully browser-based memory matching game. Flip cards to reveal hidden symbols, then match each pair from memory. Choose from three grid sizes — 4×4 (8 pairs), 4×6 (12 pairs), or 6×6 (18 pairs) — and three card themes: emoji animals, emoji food, emoji sports, numbers, or letters. Cards are shuffled at the start of every game using the Fisher-Yates algorithm seeded from the Web Crypto API for true randomness. The game tracks your move count, matched pairs, and elapsed time. Personal best scores (fewest moves and fastest time per grid size) are saved to localStorage. Cards animate with a smooth CSS 3D flip on reveal. A victory screen appears when all pairs are matched, showing your final stats and best-score badge.

Cómo usar

1. 1 Select a grid size (4×4, 4×6, or 6×6) and a card theme.
2. 2 Click 'New Game' to shuffle and deal the cards face-down.
3. 3 Click any card to flip it and reveal its symbol.
4. 4 Click a second card — if it matches the first, both stay face-up.
5. 5 If they don't match, both cards flip back down after a short pause.
6. 6 Continue until all pairs are matched, then check your stats on the victory screen.

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