:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:#142238;background:#f4f7fb}*{box-sizing:border-box}body{margin:0;line-height:1.7}header{background:#07172f;padding:1.25rem max(1.25rem,calc((100% - 780px)/2));color:#fff}header a{color:#fff;text-decoration:none;font-weight:850}main{width:min(780px,calc(100% - 2rem));margin:3rem auto 5rem;background:#fff;padding:clamp(1.5rem,5vw,3rem);border:1px solid #dce4ef;border-radius:1rem}h1,h2{font-family:Georgia,"Times New Roman",serif;line-height:1.15}h1{font-size:clamp(2.3rem,7vw,3.7rem);margin-top:0}h2{margin-top:2rem}p{color:#546478}a{color:#0c4d98}code{background:#edf2f8;padding:.1rem .3rem;border-radius:.25rem}