:root{color-scheme:light;--ink:#17243a;--muted:#52627a;--line:#dce4ee;--accent:#215cc8;--bg:#f5f7fb}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}.header,main,footer{max-width:1080px;margin:auto;padding:24px}.header,footer{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.header{border-bottom:1px solid var(--line)}.brand{font-size:21px;font-weight:750;text-decoration:none;color:var(--ink)}.brand span{font-weight:400;color:var(--muted)}nav{display:flex;gap:20px;flex-wrap:wrap}nav a{font-size:14px}.hero{padding:48px 0 30px}.eyebrow{text-transform:uppercase;font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--accent)}h1{font-size:clamp(30px,4.6vw,49px);line-height:1.18;letter-spacing:-.035em;margin:18px 0 24px}h2{font-size:21px;line-height:1.35;margin:12px 0}.lead{font-size:19px;color:var(--muted);max-width:800px}.notice{background:#eaf0fc;border-left:3px solid var(--accent);padding:16px 20px;border-radius:0 10px 10px 0;margin:26px 0}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.cards article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px}.cards p,.section p{color:var(--muted)}.step{color:var(--accent);font-size:13px;font-weight:750}.section{padding:28px 0;border-bottom:1px solid var(--line)}.prose{max-width:850px;padding-top:44px;padding-bottom:50px}.prose h2{margin-top:34px}.prose p,.prose li{color:var(--muted)}code{font-size:.86em;overflow-wrap:anywhere}footer{font-size:14px;color:var(--muted);padding-top:30px;padding-bottom:35px}p,li,a{overflow-wrap:anywhere}@media(max-width:720px){.cards{grid-template-columns:1fr}.hero{padding-top:24px}.header,main,footer{padding-left:20px;padding-right:20px}.lead{font-size:17px}.header nav,footer nav{gap:16px}.prose{padding-top:28px}}