body {
            margin: 0;
            padding: 0;
            background: #0f0f0f;
            overflow: hidden;
            font-family: 'Courier New', monospace;
        }
        canvas {
            display: block;
        }
        .back-link {
            position: absolute;
            top: 16px;
            left: 20px;
            color: #d4a574;
            font-size: 11px;
            text-decoration: none;
            letter-spacing: 0.08em;
            opacity: 0.7;
            z-index: 10;
            transition: opacity 0.2s;
        }
        .back-link:hover { opacity: 1; }
        .controls {
            position: absolute;
            top: 20px;
            right: 20px;
            color: #d4a574;
            font-size: 12px;
            text-align: right;
        }