body{font:16px system-ui;margin:2rem auto;max-width:48rem;color:#1a1a1a;padding:0 1.5rem}header{border-bottom:2px solid #1a1a1a;padding-bottom:1rem;margin-bottom:1.5rem}pre{background:#f4f4f4;padding:1rem;border-radius:6px;font-size:13px;line-height:1.5}