:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#18252d;background:#f7f9fa}*{box-sizing:border-box}body{margin:0;line-height:1.65}header,main,footer{max-width:800px;margin:auto;padding:24px}header{padding-top:42px}nav a{margin-right:22px}a{color:#125a84}main{background:white;border:1px solid #e1e7ea;border-radius:12px;padding:32px}h1{font-size:2rem;line-height:1.2}h2{margin-top:1.7em;font-size:1.2rem}footer{font-size:.9rem;color:#52616b}p,li{max-width:70ch}@media(max-width:600px){header,main,footer{padding:20px}main{border-radius:0}}