*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background:#f5f5f5;padding:0 15px}header{background:#2c3e50;color:#fff;padding:20px;text-align:center;position:relative;margin:0 -15px;display:flex;align-items:center;justify-content:center}header img{height:50px;margin-right:15px}#langBtn{position:absolute;right:20px;top:20px;padding:4px 8px;cursor:pointer;border:none;border-radius:4px;font-size:12px}main{max-width:1200px;margin:40px auto;padding:0 20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}.game-card{background:#fff;padding:30px;border-radius:8px;cursor:pointer;transition:transform .2s;box-shadow:0 2px 4px rgba(0,0,0,.1)}.game-card:hover{transform:translateY(-5px);box-shadow:0 4px 8px rgba(0,0,0,.2)}.game-card h2{margin-bottom:10px;color:#2c3e50}canvas{border:2px solid #333;display:block;margin:20px auto;max-width:100%;height:auto}.controls{text-align:center;margin:20px}button{padding:10px 20px;margin:5px;cursor:pointer;background:#3498db;color:#fff;border:none;border-radius:4px;font-size:16px}button:hover{background:#2980b9}#leaderboard{max-width:600px;margin:20px auto;background:#fff;padding:20px;border-radius:8px}.record{padding:10px;border-bottom:1px solid #eee;display:flex;justify-content:space-between}input[type=file]{margin:20px auto;display:block}