:root{
  --bg:#0f172a;
  --card:#111827;
  --muted:#64748b;
  --text:#0f172a;
  --soft:#f8fafc;
  --line:#e2e8f0;
  --primary:#2563eb;
  --primary-dark:#1e40af;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#f8fafc 0%,#eef2ff 100%);
  line-height:1.6;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.nav{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1100px;margin:0 auto;padding:16px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{font-weight:800;letter-spacing:-.03em;font-size:20px}
.nav-links{display:flex;gap:18px;flex-wrap:wrap;font-size:14px}
.hero{
  max-width:1100px;margin:0 auto;padding:78px 22px 52px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe;
  padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700;
}
h1{font-size:54px;line-height:1.02;letter-spacing:-.06em;margin:18px 0}
.lead{font-size:19px;color:#475569;max-width:700px}
.hero-card{
  background:linear-gradient(145deg,#111827,#1e293b);
  color:white;border-radius:28px;padding:30px;box-shadow:0 24px 60px rgba(15,23,42,.22);
}
.hero-card h2{margin-top:0;font-size:22px}
.hero-card p{color:#cbd5e1}
.grid{
  max-width:1100px;margin:0 auto;padding:20px 22px 80px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.card{
  background:rgba(255,255,255,.9);border:1px solid var(--line);
  border-radius:22px;padding:24px;box-shadow:0 12px 30px rgba(15,23,42,.06);
}
.card h3{margin-top:0;font-size:20px}
.section{
  max-width:900px;margin:0 auto;padding:56px 22px 90px;
}
.doc{
  background:white;border:1px solid var(--line);border-radius:24px;
  padding:34px;box-shadow:0 12px 30px rgba(15,23,42,.06);
}
.doc h1{font-size:38px;margin-top:0}
.doc h2{font-size:22px;margin-top:30px}
.doc p,.doc li{color:#334155}
.footer{
  border-top:1px solid var(--line);background:white;
  padding:28px 22px;text-align:center;color:#64748b;font-size:14px;
}
.button{
  display:inline-block;background:var(--primary);color:white;
  padding:12px 18px;border-radius:12px;font-weight:800;margin-top:18px;
}
.button:hover{background:var(--primary-dark);text-decoration:none}
@media(max-width:820px){
  .hero{grid-template-columns:1fr;padding-top:48px}
  h1{font-size:40px}
  .grid{grid-template-columns:1fr}
  .nav-inner{align-items:flex-start;flex-direction:column}
}