body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 20px;
    background-color: #fff;
    color: #000;
    transition: background-color 0.3s, color 0.3s;
}

.dark-mode body {
    background-color: #333;
    color: #eee;
}

#game-board {
    display: inline-block;
    margin-top: 20px;
}

.row {
    display: flex;
}

.cell {
    width: 100px;
    height: 100px;
    border: 1px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    cursor: pointer;
}

.cell:hover {
    background-color: #f0f0f0;
}

.dark-mode .cell {
    border-color: #555;
}

.dark-mode .cell:hover {
    background-color: #666;
}

button {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}

#stats {
    margin-top: 20px;
}

#theme-toggle {
    margin-bottom: 20px;
}