body{color:#1a1a1a;font-family:system-ui,-apple-system,segoe ui,sans-serif;line-height:1.6;margin:0 auto;max-width:42rem;padding:1.5rem 1rem 3rem;background:#fafafa}header{border-bottom:1px solid #222;margin-bottom:1rem}footer{border-top:1px solid #222;margin-top:1rem}a{color:#00e;text-decoration:none}