html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    overflow: hidden;
    background: black;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

#controls {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.5);
    padding: 8px 12px;
    border-radius: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: white;
    font-family: sans-serif;
    z-index: 10;
    backdrop-filter: blur(4px);
}

#controls label {
    display: flex;
    flex-direction: column;
    font-size: 12px;
    align-items: flex-start;
}

#controls input[type=range] {
    width: 120px;
}

#controls input[type=color] {
    width: 40px;
    height: 24px;
    padding: 0;
    border: none;
    cursor: pointer;
    background: none;
}

#controls button {
    background: #444;
    border: none;
    padding: 4px 8px;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}
#controls button:hover {
    background: #666;
}