:root{
  --bg: #0b0f19;
  --bg-alt: #121826;
  --text: #dbe1f2;
  --muted:#a6b0c3;
  --card:#0f1524;
  --brand:#7cf1b4;
  --brand-2:#52d6ff;
  --shadow: rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial;
  color:var(--text);
  background: radial-gradient(1200px 800px at 10% -10%, rgba(124,241,180,.15), transparent 40%),
              radial-gradient(1200px 800px at 100% 10%, rgba(82,214,255,.12), transparent 30%),
              var(--bg);
}
.container{max-width:900px;margin:0 auto;padding:0 20px}
.site-header{position:sticky;top:0;backdrop-filter:saturate(140%) blur(8px);background:rgba(11,15,25,.6);border-bottom:1px solid rgba(255,255,255,.06);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700}
.logo{width:36px;height:36px;display:block}
.nav-links{display:flex;gap:18px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:8px}
.nav-links a:hover{background:rgba(255,255,255,.06)}
.hero{padding:80px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.hero-copy h1{font-size:42px;line-height:1.1;margin:0 0 12px}
.lead{font-size:18px;color:var(--muted);margin:0 0 18px}
.actions{display:flex;gap:12px;margin:12px 0 0}
.btn{display:inline-block;font-weight:700;padding:10px 16px;border-radius:10px;text-decoration:none}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#05131b;box-shadow:0 10px 18px var(--shadow)}
.section{padding:60px 0}
.section.alt{background:var(--bg-alt)}
.section h2{font-size:28px;margin:0 0 18px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid rgba(255,255,255,.08);padding:18px;border-radius:14px;min-height:120px}
.center{text-align:center}
.site-footer{border-top:1px solid rgba(255,255,255,.06);padding:24px 0;color:var(--muted);font-size:14px}
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
}