:root{--bg:#f6f4ee;--card:#fff;--ink:#1c2a3d;--muted:#5b6678;--brand:#1f3a5f;--accent:#f2b705;--soft:#fff3d1;--line:#e6e1d4}
@media (prefers-color-scheme:dark){:root{--bg:#121822;--card:#1a2230;--ink:#eef2f8;--muted:#a9b3c4;--brand:#9cc0f0;--accent:#f2b705;--soft:#2a2a1c;--line:#2b3546}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
header{max-width:760px;margin:0 auto;padding:28px 16px 8px;display:flex;align-items:center;gap:12px}
header a.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;font-size:20px}
header svg{width:40px;height:40px}
nav{max-width:760px;margin:0 auto;padding:0 16px 8px;display:flex;flex-wrap:wrap;gap:6px 16px;font-size:14px}
nav a{color:var(--brand);text-decoration:none;font-weight:600}
main{max-width:760px;margin:0 auto;padding:8px 16px 48px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px 22px;margin:16px 0}
h1{font-size:28px;line-height:1.25;margin:8px 0 4px}
h2{font-size:19px;margin:28px 0 6px}
h3{font-size:16px;margin:18px 0 4px}
.muted{color:var(--muted);font-size:14px}
a{color:var(--brand)}
table{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600}
.note{background:var(--soft);border-radius:12px;padding:12px 14px;margin:14px 0;font-size:14px}
.hero{background:var(--brand);color:#fff;border-radius:22px;padding:28px 24px;margin:16px 0}
.hero h1{color:#fff;font-size:30px}
.hero p{color:#e7eef8}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}
.features .card{margin:0;padding:16px}
.features h3{margin-top:0}
ol.steps li{margin:4px 0}
footer{max-width:760px;margin:0 auto;padding:0 16px 32px;color:var(--muted);font-size:13px}