body {
    margin: 0;
    overflow: hidden;
    background-color: #000;
    color: #fff;
    font-family: sans-serif;
}

canvas {
    display: block;
}

.controls {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0,0,0,0.5);
    padding: 10px;
    border-radius: 5px;
}

.controls label {
    font-size: 16px;
}

.controls input[type="color"] {
    border: none;
    background: none;
    width: 40px;
    height: 40px;
    cursor: pointer;
}

.controls button {
    background: #333;
    border: 1px solid #555;
    color: #fff;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

.controls button:hover {
    background: #444;
}

.back-link {
    position: absolute;
    top: 20px;
    right: 20px;
    color: white;
    text-decoration: none;
    font-family: sans-serif;
    font-size: 1em;
    z-index: 100;
    background: rgba(0,0,0,0.5);
    padding: 10px 15px;
    border-radius: 5px;
}
.back-link:hover {
    background: rgba(0,0,0,0.8);
}