@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --dark:#111827;
  --dark2:#1F2937;
  --red:#DC2626;
  --bg:#F8FAFC;
  --card:#FFFFFF;
  --text:#111827;
  --muted:#4B5563;
  --border:#E5E7EB;
  --blue:#2563EB;
}

*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}
a{color:inherit}
.wrap{width:min(1180px,92%);margin:auto}
.skip-link{position:absolute;left:-999px;top:auto}
.skip-link:focus{left:16px;top:16px;background:white;color:#111827;padding:12px 16px;z-index:9999;border-radius:8px}

.site-header{background:var(--dark);border-bottom:1px solid rgba(255,255,255,.12);position:sticky;top:0;z-index:100}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:12px 0}
.brand img{height:70px;max-width:360px;object-fit:contain;display:block;background:white;border-radius:10px;padding:4px}
.nav ul{list-style:none;display:flex;gap:18px;margin:0;padding:0;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;font-weight:700;font-size:14px}
.nav a:hover,.nav a:focus{color:#FCA5A5}

.hero{background:linear-gradient(135deg,#111827,#1F2937);color:#fff;padding:82px 0}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.eyebrow{color:#FCA5A5;text-transform:uppercase;letter-spacing:.08em;font-weight:800;font-size:14px}
.hero h1{font-size:54px;line-height:1.08;margin:10px 0 22px}
.hero p{font-size:18px;color:#E5E7EB}
.hero-logo-card{background:#fff;border-radius:28px;padding:30px;box-shadow:0 24px 70px rgba(0,0,0,.28)}
.hero-logo-card img{width:100%;display:block}

.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--red);color:#fff;border-radius:999px;padding:13px 24px;font-weight:800;text-decoration:none;border:0;cursor:pointer}
.btn.secondary{background:transparent;border:1px solid rgba(255,255,255,.45);margin-left:10px}

.section{padding:72px 0}
.section h1{font-size:48px;line-height:1.15;margin:0 0 18px}
.section h2{font-size:38px;line-height:1.15;margin:0 0 16px}
.section p{color:var(--muted);font-size:18px}
.kicker{color:var(--red);font-weight:800;text-transform:uppercase;letter-spacing:.08em}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px}
.card,.diagram-card{background:#fff;border:1px solid var(--border);border-radius:24px;padding:28px;box-shadow:0 10px 30px rgba(17,24,39,.06)}
.card h3{margin-top:0;font-size:22px}
.diagram-card{margin:26px 0;overflow:auto}
.diagram-card img{width:100%;min-width:760px;display:block}
.diagram-caption{font-size:15px!important;color:#4B5563!important;margin-top:12px!important}

.ai-band{background:#111827;color:#fff}
.ai-band p{color:#E5E7EB}
.ai-band .card{background:#1F2937;border-color:#374151;color:#fff}
.ai-band .card p{color:#D1D5DB}

.contact-box{background:#fff;border:1px solid var(--border);border-radius:28px;padding:34px;box-shadow:0 10px 30px rgba(17,24,39,.06)}
.contact-form{display:grid;gap:14px;max-width:650px}
.contact-form label{font-weight:700}
.contact-form input,.contact-form textarea{width:100%;padding:14px;border:1px solid var(--border);border-radius:12px;font:inherit;margin-top:6px}
.contact-form textarea{min-height:150px}

.site-footer{background:#fff;border-top:1px solid var(--border);padding:36px 0;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.footer-logo{max-width:380px;width:100%;background:white;border-radius:10px}

@media(max-width:930px){
  .hero-grid,.cards,.footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:38px}
  .brand img{height:55px;max-width:280px}
  .nav{display:none}
  .section h1{font-size:36px}
  .section h2{font-size:30px}
  .diagram-card img{min-width:680px}
}