:root{color-scheme:light dark;--ink:#171A2B;--bg:#F6F7FA;--accent:#D9342B;--muted:#7A8097}@media (prefers-color-scheme:dark){:root{--ink:#ECEEF6;--bg:#14161F;--accent:#F0584F;--muted:#858BA3}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.5}main.center{min-height:100svh;display:grid;place-items:center;padding:2rem;text-align:center}main.center h1{margin:0 0 .25rem;font-size:1.5rem}main.center p{color:var(--muted);margin:.25rem 0}code{background:rgba(127,127,127,.15);padding:.1em .4em;border-radius:4px}