:root{
  --zt-bg:#07131f;
  --zt-card:#0d1f30;
  --zt-text:#eef7f2;
  --zt-muted:#a9bbb4;
  --zt-accent:#18ad75;
  --zt-line:rgba(255,255,255,.12);
}
*{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:
    radial-gradient(circle at 15% 15%,rgba(24,173,117,.14),transparent 34rem),
    radial-gradient(circle at 80% 15%,rgba(67,124,255,.10),transparent 30rem),
    var(--zt-bg);
  color:var(--zt-text);
}
a{color:inherit}
.shell{max-width:1120px;margin:auto;padding:0 22px}
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 0;border-bottom:1px solid var(--zt-line)
}
.wordmark{font-weight:900;letter-spacing:.2px;font-size:1.2rem}
.wordmark span{color:var(--zt-accent)}
.nav{display:flex;gap:18px;color:var(--zt-muted);font-weight:650;font-size:.94rem}
.nav a{text-decoration:none}
.hero{padding:90px 0 72px;max-width:850px}
.eyebrow{color:#6fe1b4;text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:.78rem}
.hero h1{font-size:clamp(2.8rem,7vw,5.7rem);line-height:.98;margin:18px 0 24px;letter-spacing:-.055em}
.hero p{max-width:700px;color:var(--zt-muted);font-size:1.16rem;line-height:1.72}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;text-decoration:none;
  min-height:48px;padding:0 18px;border-radius:14px;font-weight:800;border:1px solid var(--zt-line)
}
.btn.primary{background:var(--zt-accent);border-color:var(--zt-accent);color:#fff}
.btn.secondary{background:rgba(255,255,255,.04)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:0 0 70px}
.card{
  border:1px solid var(--zt-line);background:rgba(13,31,48,.82);
  border-radius:22px;padding:24px
}
.card h2{margin:0 0 10px;font-size:1.08rem}
.card p{margin:0;color:var(--zt-muted);line-height:1.62}
.footer{border-top:1px solid var(--zt-line);padding:25px 0 40px;color:var(--zt-muted);font-size:.9rem}
@media(max-width:760px){.nav{display:none}.grid{grid-template-columns:1fr}.hero{padding-top:64px}}