body{margin:0;background:#0c111a;color:#dce5f1;font:16px/1.8 system-ui,sans-serif}header,main,footer{max-width:900px;margin:auto;padding:24px}header,footer{border-bottom:1px solid #263344}h1{font-size:28px}h2{font-size:20px;margin-top:32px}a{color:#61d7ed}a:focus-visible{outline:3px solid #61d7ed}nav{display:flex;gap:16px;flex-wrap:wrap}footer{font-size:13px;color:#93a3b6}p{overflow-wrap:anywhere}