html,body{margin:0;width:100%;height:100%;overflow:hidden;background:#02060a;color:#d8f8ff;font-family:Consolas,monospace}
body{display:grid;place-items:center;background:radial-gradient(circle at 50% 35%,#0a1620 0,#03070b 48%,#000 100%)}
#shell{position:relative;width:min(100vw,177.777vh);aspect-ratio:16/9;box-shadow:0 0 70px #000;border:1px solid #163444;background:#000}
canvas{display:block;width:100%;height:100%;image-rendering:pixelated;background:#000}
#boot{position:absolute;inset:0;display:grid;place-items:center;background:#000;color:#35ecff;font-size:clamp(12px,1.4vw,22px);letter-spacing:.12em}