@keyframes pulse-win {
    0% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(76, 175, 80, 0); }
    100% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0); }
}


@media (max-width: 480px) {
    .grid-cell {
        width: 70px;
        height: 70px;
        font-size: 1.5rem;
    }

    .game-grid {
        gap: 8px;
        padding: 10px;
    }

    .title {
        font-size: 2rem;
    }
}