/* Sum Merge */

.merge-container {
    position: relative;
    margin: 20px 0;
    padding: 16px;
    background: #bbada0;
    border: 2px inset #808080;
    display: inline-block;
}

#gameGrid {
    display: grid;
    grid-template-columns: repeat(4, 80px);
    grid-template-rows: repeat(4, 80px);
    gap: 8px;
    padding: 8px;
    background: #bbada0;
}

.grid-cell {
    width: 80px;
    height: 80px;
    background: #cdc1b4;
    border: 2px outset #a0a0a0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    font-family: "Impact", "Arial Black", sans-serif;
    color: #776e65;
}

.grid-cell.tile-2 { background: #eee4da; color: #776e65; }
.grid-cell.tile-4 { background: #ede0c8; color: #776e65; }
.grid-cell.tile-8 { background: #f2b179; color: #f9f6f2; }
.grid-cell.tile-16 { background: #f59563; color: #f9f6f2; }
.grid-cell.tile-32 { background: #f67c5f; color: #f9f6f2; }
.grid-cell.tile-64 { background: #f65e3b; color: #f9f6f2; }
.grid-cell.tile-128 { background: #edcf72; color: #f9f6f2; font-size: 24px; }
.grid-cell.tile-256 { background: #edcc61; color: #f9f6f2; font-size: 24px; }
.grid-cell.tile-512 { background: #edc850; color: #f9f6f2; font-size: 24px; }
.grid-cell.tile-1024 { background: #edc53f; color: #f9f6f2; font-size: 20px; }
.grid-cell.tile-2048 { background: #edc22e; color: #f9f6f2; font-size: 20px; }

.game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(238, 228, 218, 0.95);
    border: 3px outset #8f7a66;
    padding: 24px;
    text-align: center;
}

.game-over h2 { color: #8f7a66 !important; }
.game-over p { color: #776e65 !important; }

.game-score {
    font-family: "Impact", "Arial Black", sans-serif;
    font-size: 18px;
    color: #776e65 !important;
}