:root{
  --bg:#f6f8fb;
  --card:#ffffff;
  --text:#172033;
  --muted:#667085;
  --line:#e7eaf0;
  --accent:#2563eb;
  --accent2:#1d4ed8;
  --shadow:0 18px 50px rgba(15,23,42,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.72;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(980px,calc(100% - 32px));margin:auto}
.topbar{
  position:sticky;top:0;z-index:10;
  background:rgba(246,248,251,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{
  min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{font-weight:800;letter-spacing:-.02em;color:var(--text);font-size:20px}
.links{display:flex;gap:18px;flex-wrap:wrap}
.links a{color:var(--muted);font-size:14px;font-weight:600}
.hero{padding:72px 0 34px}
.eyebrow{color:var(--accent);font-weight:800;font-size:13px;text-transform:uppercase;letter-spacing:.14em}
h1{font-size:clamp(34px,6vw,60px);line-height:1.06;letter-spacing:-.045em;margin:12px 0 18px}
.lead{font-size:19px;color:var(--muted);max-width:760px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow);padding:34px;margin:20px 0 56px;
}
h2{font-size:25px;letter-spacing:-.025em;margin:34px 0 8px}
h2:first-child{margin-top:0}
h3{font-size:18px;margin:24px 0 6px}
p,li{color:#344054}
ul{padding-left:22px}
.notice{
  border-left:4px solid var(--accent);
  background:#eff6ff;padding:16px 18px;border-radius:10px;margin:22px 0;
}
.meta{font-size:14px;color:var(--muted)}
.cta{
  display:inline-block;background:var(--accent);color:#fff;border-radius:12px;
  padding:12px 18px;font-weight:700;margin-top:10px;
}
.cta:hover{background:var(--accent2);text-decoration:none}
footer{padding:0 0 50px;color:var(--muted);font-size:14px}
.small{font-size:14px;color:var(--muted)}
code{background:#eef2f7;padding:.15em .35em;border-radius:6px}
@media (max-width:700px){
  .nav{align-items:flex-start;flex-direction:column;padding:16px 0}
  .hero{padding-top:42px}
  .card{padding:24px}
}