:root{color-scheme:light;--ink:#14161a;--muted:#5c636e;--line:#e3e6ea}*{box-sizing:border-box}body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:#ffffff}main{max-width:720px;margin:0 auto;padding:48px 20px}h1{font-size:24px;margin:0 0 12px}p{color:var(--muted);line-height:1.55}hr{border:0;border-top:1px solid var(--line);margin:24px 0}