body{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;max-width:46rem;margin:0 auto;padding:2rem 1rem;line-height:1.6;color:#1d1d1f;background:#fff}
h1{font-size:1.6rem}h2{font-size:1.2rem;margin-top:2rem}nav a{margin-right:1rem}footer{margin-top:3rem;font-size:.85rem;color:#555;border-top:1px solid #ddd;padding-top:1rem}