:root{--bg: #fbfbfa;--fg: #1a1a18;--muted: #6b6b66;--error: #a33;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg)}main{max-width:44rem;margin:4rem auto;padding:0 1.5rem}h1{font-size:1.4rem;margin:0 0 .5rem}.muted{color:var(--muted)}.error{color:var(--error)}code{background:#f0f0ec;padding:.1rem .3rem;border-radius:3px}