body {
    font-family: 'Helvetica', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f2f5;
    margin: 0;
}

.game-container {
    text-align: center;
}

.board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    gap: 10px;
    background-color: #bbada0;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.tile {
    width: 100px;
    height: 100px;
    background-color: #eee4da;
    color: #776e65;
    font-size: 32px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.1s;
}

.tile:hover {
    background-color: #ede0c8;
}

.tile.empty {
    background-color: #cdc1b4;
    cursor: default;
}

.controls button {
    padding: 10px 20px;
    font-size: 16px;
    margin: 0 5px;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    background-color: #8f7a66;
    color: white;
}

.controls button:hover {
    background-color: #7f6a56;
}