body, html {
    margin: 0;
    padding: 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #333;
}

#controls {
    position: fixed;
    top: 10px;
    left: 10px;
    background: rgba(255, 255, 255, 0.8);
    padding: 10px;
    border-radius: 8px;
}

#controls button, #controls input {
    margin: 5px;
}

canvas {
    border: 1px solid black;
    background-color: #000;
}