/* 2048 Game Styles */
.game2048-container {
    position: relative;
    padding: 2rem;
    max-width: 500px;
    margin: 0 auto;
}

#game2048Area {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    background: #bbada0;
    padding: 10px;
    border-radius: 6px;
    aspect-ratio: 1;
    touch-action: none;
}

.tile-2048 {
    background: #eee4da;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    color: #776e65;
    aspect-ratio: 1;
    transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease;
}

.tile-2 { background: #eee4da; }
.tile-4 { background: #ede0c8; }
.tile-8 { background: #f2b179; color: #f9f6f2; }
.tile-16 { background: #f59563; color: #f9f6f2; }
.tile-32 { background: #f67c5f; color: #f9f6f2; }
.tile-64 { background: #f65e3b; color: #f9f6f2; }
.tile-128 { background: #edcf72; color: #f9f6f2; font-size: 1.8rem; }
.tile-256 { background: #edcc61; color: #f9f6f2; font-size: 1.8rem; }
.tile-512 { background: #edc850; color: #f9f6f2; font-size: 1.8rem; }
.tile-1024 { background: #edc53f; color: #f9f6f2; font-size: 1.5rem; }
.tile-2048 { background: #edc22e; color: #f9f6f2; font-size: 1.5rem; }

.tile-2048.tile-new { animation: pop-in 0.12s ease-out; }
.tile-2048.tile-merged { animation: merge-pop 0.14s ease-out; }

.game-over-2048 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(238, 228, 218, 0.73);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}

.game-over-content {
    background: #8f7a66;
    color: #f9f6f2;
    padding: 2rem;
    border-radius: 6px;
    text-align: center;
}

.new-best {
    color: #f2b179;
    font-weight: bold;
}

.play-again-btn {
    margin-top: 1rem;
    padding: 0.8rem 1.5rem;
    background: #8f7a66;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 1rem;
}

.play-again-btn:hover {
    background: #9f8f76;
}

@media (max-width: 600px) {
    .game2048-container {
        padding: 1rem;
        max-width: 100%;
    }
    #game2048Area {
        gap: 6px;
        padding: 6px;
    }
    .tile-2048 {
        font-size: 1.2rem;
        border-radius: 2px;
    }
    .tile-128, .tile-256, .tile-512 {
        font-size: 1rem;
    }
    .tile-1024, .tile-2048 {
        font-size: 0.9rem;
    }
}

@keyframes pop-in {
    0% { transform: scale(0.6); opacity: 0.6; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes merge-pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); }
    100% { transform: scale(1); }
}