/* Tic-Tac-Toe — Game-specific styles */

.board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    gap: 4px;
    border: 2px solid var(--gb-border);
    border-radius: var(--gb-radius-sm);
    overflow: hidden;
    margin: 0 auto;
}

.cell {
    width: 100px;
    height: 100px;
    border: 1px solid var(--gb-border);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.6rem;
    font-weight: 700;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.05);
    color: var(--gb-text);
    transition: background var(--gb-transition);
}

.cell:hover {
    background: rgba(56, 178, 172, 0.1);
}

.winner-cell {
    background: rgba(72, 187, 120, 0.25) !important;
    color: var(--gb-success);
}

.mode-btn:hover {
    background: rgba(78, 84, 200, 0.1);
}

.mode-btn.active {
    background: #4e54c8;
    color: #fff;
    font-weight: 700;
}