.ranking table{width:80%;max-width:500px;border-collapse:collapse;margin-top:10px}.ranking th,.ranking td{border:1px solid #444;padding:8px;color:#fff}.ranking th{background-color:#222}.ranking tr:nth-child(odd){background-color:#333}.ranking tr:nth-child(2n){background-color:#222}*{box-sizing:border-box;font-family:Arial,sans-serif}.app{text-align:center;padding:20px;max-width:720px;margin:0 auto;display:flex;flex-direction:column;align-items:center}.board{margin:16px auto;display:grid;background:#111;border:4px solid #222}.cell{border:1px solid #1a1a1a;background:#0b0b0b}.cell.snake{background:#4caf50}.cell.head{background:#2e7d32}.cell.food{background:#ff5252}.info{margin-bottom:8px;display:flex;justify-content:center;gap:20px;flex-wrap:wrap;text-align:center}.gameover{margin-top:20px;text-align:center}button{margin:6px;padding:8px 12px;cursor:pointer}.saved-list{margin-top:14px;text-align:left}.name-prompt{margin-top:40px;text-align:center}input[type=text]{padding:8px;width:60%;font-size:16px}