:root{
  --bg:#071019;
  --card:#0f1720;
  --accent:#0b74de;
  --muted:#9aa7b2;
  --white:#ffffff;
  --whatsapp:#25D366;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;color:var(--white);background:linear-gradient(180deg,#04060a 0%, #071019 60%);}
.container{max-width:1100px;margin:0 auto;padding:24px}
.site-header{border-bottom:1px solid rgba(255,255,255,0.03);position:sticky;top:0;background:rgba(7,16,25,0.6);backdrop-filter:blur(6px);z-index:30}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo{width:56px;height:56px;border-radius:8px}
.brand-text .org{font-size:12px;color:var(--muted);letter-spacing:1px}
.brand-text h1{margin:0;font-size:20px}
.nav{display:flex;gap:16px}
.nav a{color:var(--muted);text-decoration:none;font-size:14px}
.hero{padding:48px 0}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:32px;align-items:center}
.hero h2{font-size:28px;color:var(--white);margin:0}
.lead{color:var(--muted);font-size:18px;margin:12px 0}
.cta{display:flex;gap:12px;margin-top:16px}
.btn{padding:12px 18px;border-radius:10px;border:0;cursor:pointer;font-weight:600}
.btn.primary{background:linear-gradient(90deg,var(--accent),#3fb6ff);color:#001}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--white)}
.btn.whatsapp{background:var(--whatsapp);color:#06311a}
.btn.big{padding:14px 22px;font-size:16px;border-radius:14px}
.hero-media .hero-img{width:100%;border-radius:12px;box-shadow:0 8px 30px rgba(11,116,222,0.15);}
.section{padding:40px 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:18px;border-radius:10px;border:1px solid rgba(255,255,255,0.03);box-shadow:0 6px 18px rgba(2,6,23,0.6)}
.diagram{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.diagram .node{background:linear-gradient(90deg,var(--card),#0b1220);padding:10px 14px;border-radius:8px;border:1px solid rgba(255,255,255,0.03)}
.arrow{color:var(--accent);font-weight:700}
.cta-final{text-align:center;padding:60px 0}
.site-footer{border-top:1px solid rgba(255,255,255,0.03);padding:20px 0;color:var(--muted)}

.cta-banner img{display:block}
.cta-strong{color:var(--muted);max-width:900px;margin:8px auto}

/* sticky CTA */
.sticky-cta{position:fixed;right:18px;bottom:18px;z-index:60}
.sticky-cta .btn{padding:12px 16px;border-radius:999px;box-shadow:0 8px 30px rgba(2,6,23,0.6)}

@media(max-width:900px){
  .hero-media{order: -1}
  .sticky-cta{right:14px;bottom:14px}
}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .nav{display:none}
  .brand .logo{width:48px;height:48px}
}