body {
    margin: 0;
    overflow: hidden;
    background: #000;
}

canvas {
    display: block;
}

#instructions {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-family: Arial, sans-serif;
    font-size: 24px;
    text-align: center;
    pointer-events: none;
    z-index: 10;
    opacity: 1;
    transition: opacity 1s;
}