body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,Helvetica,sans-serif;max-width:900px;margin:40px auto;padding:0 16px;line-height:1.6}
nav a{margin-right:12px;text-decoration:none}
nav a:hover{text-decoration:underline}
header{margin-bottom:24px}
code{background:#f4f4f4;padding:2px 6px;border-radius:4px}
footer{margin-top:32px;color:#666;font-size:.9em}