:root{color-scheme:light dark;font-family:system-ui,sans-serif;line-height:1.65}body{margin:0;background:light-dark(#fafafa,#111);color:light-dark(#202020,#eee)}main{max-width:760px;margin:0 auto;padding:32px 24px 64px}a{color:light-dark(#174cba,#9abaff)}h1{font-size:2rem;line-height:1.2}h2{font-size:1.15rem;margin-top:28px}li{margin-bottom:10px}nav{margin-bottom:32px}