:root{color-scheme:dark;--bg:#081019;--surface:#101b28;--line:#26384b;--text:#f4f7fb;--muted:#a8b5c5;--accent:#51c5e8}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.7}header,main,footer{width:min(900px,calc(100% - 40px));margin:auto}header{display:flex;justify-content:space-between;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}a{color:var(--accent)}.brand{color:var(--text);font-weight:850;text-decoration:none;font-size:20px}main{padding:54px 0 70px}h1{font-size:clamp(34px,6vw,56px);line-height:1.05;margin:0 0 12px}h2{margin-top:38px;line-height:1.25}.updated,.lede{color:var(--muted)}.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;margin:24px 0}ul{padding-left:22px}footer{display:flex;flex-wrap:wrap;gap:18px;padding:28px 0 40px;border-top:1px solid var(--line);color:var(--muted)}footer a{color:var(--muted)}@media(max-width:600px){header{padding:18px 0}main{padding-top:36px}.card{padding:18px}}