* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #1a1a2e;
    overflow: hidden;
}

canvas {
    display: block;
}

.back-link {
    position: absolute;
    top: 20px;
    left: 20px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-family: sans-serif;
    font-size: 16px;
    z-index: 1000;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: rgba(255, 255, 255, 1);
}