body{font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;max-width:760px;margin:40px auto;padding:0 20px;line-height:1.6;color:#222}
h1{font-size:1.8rem}h2{font-size:1.2rem;margin-top:2rem}code{background:#f3f3f3;padding:1px 5px;border-radius:4px}
footer{margin-top:3rem;font-size:.9rem;color:#666;border-top:1px solid #eee;padding-top:1rem}