body{margin:0;background:#f5f6fa;color:#192136;font:17px/1.8 -apple-system,BlinkMacSystemFont,sans-serif}main{max-width:760px;margin:auto;padding:40px 24px 70px}nav{display:flex;gap:24px;flex-wrap:wrap}a{color:#304cc0}h1{font-size:36px;line-height:1.3}h2{font-size:23px;margin-top:28px}aside{padding:16px 20px;background:#fff1cc;border-radius:12px}section{background:white;padding:8px 24px 24px;border-radius:16px;margin:24px 0}footer{font-size:14px;color:#586176}

@media(max-width:480px){h1{font-size:28px}main{padding:28px 20px 48px}section{padding:8px 20px 20px}nav{gap:14px;font-size:15px}}