:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:#182c45;background:#f5f7fa;line-height:1.65}
*{box-sizing:border-box}body{margin:0}a{color:#174f8c;text-underline-offset:.18em}
header,main,footer{max-width:850px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.brand{font-weight:750;text-decoration:none;font-size:1.15rem}nav{display:flex;gap:20px}main{background:white;border:1px solid #dce3eb;border-radius:12px;padding:32px}
h1{font-size:clamp(1.8rem,5vw,2.5rem);line-height:1.2;margin:0 0 24px}h2{font-size:1.3rem;margin-top:30px}p{margin:0 0 18px}footer{font-size:.85rem;color:#4e6074}
.skip{position:absolute;left:12px;top:-100px}.skip:focus{top:8px;background:white;padding:8px}a:focus-visible{outline:3px solid #e6a200;outline-offset:4px}
@media(max-width:600px){header,footer{padding:18px}main{border-radius:0;padding:24px 18px;border-left:0;border-right:0}}