*{box-sizing:border-box}
body{margin:0 auto;max-width:42rem;padding:1.5rem 1rem;font:17px/1.65 Georgia,"Times New Roman",serif;color:#222;background:#fdfdfb}
h1,h2{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.25}
h1{font-size:1.9rem;margin:1rem 0}
h2{font-size:1.25rem;margin-top:2rem}
a{color:#1a5fb4}
a:hover{color:#0b3d7a}
nav{font-family:system-ui,sans-serif;font-size:.95rem}
header{border-bottom:1px solid #ddd;padding-bottom:.6rem}
footer{border-top:1px solid #ddd;margin-top:3rem;padding-top:.6rem;font-size:.9rem;color:#555}
li{margin:.3rem 0}