body {
    font-family: 'Courier New', Courier, monospace;
    text-align: center;
    background: linear-gradient(120deg, #f6d365, #fda085);
    color: #333;
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.1);
}

#board {
    display: block;
    margin: 20px auto;
    border: 3px solid #333;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

#startButton {
    display: inline-block;
    margin: 10px;
    padding: 15px 30px;
    font-size: 18px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

#startButton:hover {
    background-color: #45a049;
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}