:root{
  --bg:#0b0c10;
  --fg:#f6f7fb;
  --muted:#f1f3f6;
  --ink:#1b1d23;
  --brand:#0ea5e9;
  --brand-ink:#075985;
  --card:#ffffff;
  --border:#e5e7eb;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  color:var(--ink);
  background:#fff;
  line-height:1.5;
}

.container{max-width:1100px;margin:0 auto;padding:0 20px}

.site-header{
  background: linear-gradient(135deg, var(--bg), #111827 55%, #0a192f);
  color:var(--fg);
  position:sticky;top:0;z-index:10
}
.brand{display:flex;align-items:center;gap:12px;padding:14px 0}
.logo{
  display:inline-grid;place-items:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--fg);color:#000;font-weight:700
}
.brand-text{font-weight:700;letter-spacing:.5px}

.nav{display:flex;gap:18px;align-items:center;justify-content:flex-end}
.nav a{color:var(--fg);text-decoration:none;opacity:.9}
.nav a:hover{opacity:1}

.hero{
  padding:72px 0 56px;
  background: radial-gradient(1200px 500px at 20% -20%, rgba(14,165,233,.15), transparent),
              radial-gradient(800px 400px at 120% 10%, rgba(14,165,233,.10), transparent);
}
.hero h1{
  margin:0 0 10px;font-size:clamp(28px,5vw,44px);letter-spacing:.3px
}
.lead{font-size:clamp(16px,2.5vw,18px);color:#4b5563;max-width:720px}

.cta-row{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:12px 18px;border-radius:10px;
  border:1px solid var(--border);text-decoration:none;color:#111827;background:#fff
}
.btn:hover{border-color:#cbd5e1}
.btn-primary{
  background:var(--brand);border-color:transparent;color:white;font-weight:600
}
.btn-primary:hover{background:#0284c7}

.section{padding:56px 0}
.muted{background:var(--muted)}

.cards{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
}
@media (max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.cards{grid-template-columns:1fr}}

.card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:18px;box-shadow:0 4px 18px rgba(0,0,0,.03)
}
.card h3{margin:6px 0 8px}
.card ul{margin:8px 0 0 18px}

.grid-2{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
@media (max-width:900px){.grid-2{grid-template-columns:1fr}}

.checklist{list-style:none;margin:0;padding:0}
.checklist li{padding-left:28px;position:relative;margin:8px 0}
.checklist li::before{
  content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:50%;
  background:var(--brand);box-shadow:inset 0 0 0 3px #e0f2fe
}

.contact{text-align:left;margin:12px 0}
.small-note{color:#6b7280;font-size:14px;margin-top:8px}

.site-footer{border-top:1px solid var(--border);padding:18px 0;color:#4b5563;background:#fafafa}
.site-footer p{margin:0}