:root{color-scheme:dark;--bg:#09151d;--card:#10232e;--text:#eaf3f4;--muted:#a8bec6;--line:#29434c;--accent:#8ee9ce}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:17px/1.7 system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--accent);text-underline-offset:5px}a:hover{color:white}a:focus-visible{outline:3px solid var(--accent);outline-offset:6px}.wrap{width:min(1100px,90%);margin:auto}header{border-bottom:1px solid var(--line)}header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:25px 0}.brand{color:var(--text);font-size:19px;font-weight:750;text-decoration:none;letter-spacing:-.5px}.brand span{color:var(--accent)}nav{display:flex;flex-wrap:wrap;gap:24px;font-size:14px}nav a{color:var(--muted);text-decoration:none}.hero{padding:95px 0 72px;max-width:850px}.eyebrow{text-transform:uppercase;letter-spacing:3px;color:var(--accent);font-size:12px;font-weight:700}h1{font-size:clamp(38px,6vw,72px);line-height:1.08;letter-spacing:-2px;margin:23px 0}h2{font-size:28px;line-height:1.25;letter-spacing:-.7px}h3{font-size:20px}.lead{color:var(--muted);font-size:21px;max-width:680px}.button{display:inline-block;background:var(--accent);color:#09241e;padding:12px 22px;border-radius:8px;font-weight:700;text-decoration:none;margin-top:20px}.button:hover{background:white;color:#09241e}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:30px 0 65px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:27px}.number{font:14px monospace;color:var(--accent)}p,li{color:var(--muted)}.card h3{margin:14px 0 8px}.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:35px 0;margin-bottom:65px}.band p{max-width:800px}.prose{max-width:780px;padding:65px 0}.prose h1{font-size:48px}.prose h2{margin-top:40px}.note{border-left:3px solid var(--accent);padding:8px 20px;background:var(--card)}footer{padding:28px 0 45px;border-top:1px solid var(--line);font-size:14px}footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px}code{overflow-wrap:anywhere;color:var(--text)}.skip{position:absolute;left:-10000px}.skip:focus{left:20px;top:10px;background:var(--bg);padding:10px;z-index:5}@media(max-width:650px){header .wrap{align-items:flex-start;flex-direction:column;gap:12px}nav{gap:17px}.hero{padding:55px 0 40px}.grid{grid-template-columns:1fr;gap:12px}.card{padding:22px}.lead{font-size:18px}.prose{padding-top:35px}.prose h1{font-size:38px}h1{letter-spacing:-1px}}