.mine-stage {
    margin-top: 14px;
    padding: 14px;
    border-radius: 14px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.mine-board {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 4px;
    user-select: none;
}

.cell {
    aspect-ratio: 1;
    border-radius: 8px;
    display: grid;
    place-items: center;
    background: #dfe3e9;
    color: #1f2933;
    font-size: 18px;
    font-weight: 800;
    touch-action: none;
}

.cell:active {
    background: #cfd5dd;
}

.cell.open {
    background: #f5f6f8;
}

.cell.flag {
    color: #f05f57;
}

.cell.mine {
    color: #fff;
    background: #f05f57;
}

.cell[data-value="1"] {
    color: #3478f6;
}

.cell[data-value="2"] {
    color: #20a66b;
}

.cell[data-value="3"] {
    color: #f05f57;
}

.cell[data-value="4"],
.cell[data-value="5"],
.cell[data-value="6"],
.cell[data-value="7"],
.cell[data-value="8"] {
    color: #7657e8;
}