*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%}body{display:grid;place-items:center;background:radial-gradient(ellipse at 50% 30%,#1c2541,#0b132b 70%);font-family:Segoe UI,Hiragino Sans,sans-serif;overflow:hidden}#app{padding:18px;border-radius:20px;background:#ffffff0a;border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 80px #0000008c}#game{display:block;border-radius:12px;width:min(920px,92vw);aspect-ratio:920 / 300}