body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f0f0f0;
}

h1 {
    color: #333;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    gap: 10px;
    margin: 20px auto;
    max-width: 320px;
}

.cell {
    width: 100px;
    height: 100px;
    background-color: #000;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
}

.cell:hover {
    background-color: #1c1b1b;
}

button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

button:hover {
    background-color: #555;
}

#score {
    margin-top: 10px;
}