:root{color-scheme:dark;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#000;color:#fafafa}.game-shell{min-height:100vh;display:grid;place-items:center;padding:1rem}canvas{border:2px solid #1a1aff;border-radius:4px}