:root{color-scheme:dark}html,body{width:100%;height:100%;margin:0;padding:0;overflow:hidden;background:radial-gradient(1200px 800px at 50% 40%,#0b1220,#05060a 55%,#020208);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,Noto Sans,Liberation Sans,sans-serif}#app{width:100%;height:100%}canvas{display:block}::selection{background:#66ff9940}