:root{color-scheme:dark;--bg:#02090b;--panel:#071418;--text:#d7e5e8;--muted:#8aa4ad;--cyan:#00d4ff;--line:rgba(0,212,255,.2)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 50% 0,#092029 0,var(--bg) 45%);color:var(--text);font:16px/1.7 Arial,sans-serif}header,main,footer{width:min(860px,calc(100% - 36px));margin:auto}header{padding:38px 0 22px;border-bottom:1px solid var(--line)}header a,footer a,main a{color:var(--cyan)}.brand{font-weight:800;letter-spacing:.14em;text-transform:uppercase;text-decoration:none}main{padding:52px 0 70px}h1{font-size:clamp(2rem,6vw,3.6rem);line-height:1.05;color:#fff;margin:.2em 0}h2{color:#fff;margin-top:2.2em;font-size:1.25rem}p,li{color:var(--muted)}.updated{color:var(--cyan);font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}.card{background:rgba(7,20,24,.8);border:1px solid var(--line);border-radius:14px;padding:clamp(20px,4vw,36px)}footer{padding:25px 0 45px;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem}footer nav{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:8px}