body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #4caf50; /* Grass Green */
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
canvas {
    display: block;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}