:root{
  --ink:#0B1F35; --muted:#5B6B7B; --line:#D7E1EB; --bg:#F4F7FA; --card:#FFFFFF;
  --blue:#1E5FAF; --cyan:#00AEEF; --orange:#D64A2E;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Open Sans",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:#1B2B3B;line-height:1.55}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:1160px;max-width:92%;margin:0 auto}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter: blur(10px);border-bottom:1px solid rgba(215,225,235,.9)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand img{height:38px;display:block}
.nav-links{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.nav-links a{font-weight:800;color:var(--ink);font-size:13px;letter-spacing:.2px}
.nav-links a.active{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 16px;border-radius:10px;font-weight:900;font-size:13px;letter-spacing:.2px;border:1px solid transparent;cursor:pointer;transition:.15s ease}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{filter:brightness(.95);text-decoration:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#B9C8D8;text-decoration:none}
.btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.36)}
.btn-secondary:hover{border-color:rgba(255,255,255,.62);text-decoration:none}
.badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.badge{padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);color:#fff;font-weight:900;font-size:12px}

.kicker{color:#fff;opacity:.92;font-weight:900;font-family:"Montserrat",system-ui,sans-serif;letter-spacing:.7px;text-transform:uppercase;font-size:12px}
h1,h2,h3{font-family:"Montserrat",system-ui,sans-serif;margin:0}
.section{padding:64px 0}
.section.white{background:#fff}
.lead{color:var(--muted);font-size:16px;max-width:980px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.card h3{margin:0 0 6px;font-size:18px;color:var(--ink)}
.card p{margin:0;color:var(--muted)}
.list{margin:10px 0 0;padding-left:18px;color:var(--muted)}
.hr{height:1px;background:var(--line);margin:22px 0}
.framework{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;overflow:hidden}
.framework img{width:100%;height:auto;display:block}

.table{width:100%;border-collapse:collapse;margin-top:12px}
.table th,.table td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
.table th{font-family:"Montserrat",system-ui,sans-serif;font-size:12px;letter-spacing:.6px;text-transform:uppercase;color:var(--muted)}
.small{font-size:13px;color:var(--muted)}

.hero-video{position:relative;min-height:520px;overflow:hidden;background:var(--ink);isolation:isolate}
.hero-video video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-video .overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,31,53,.88),rgba(11,31,53,.55))}
.hero-video .content{position:relative;z-index:2;padding:86px 0 78px}
.hero-video h1{color:#fff;font-size:46px;line-height:1.06;margin:10px 0 14px}
.hero-video p{color:#fff;opacity:.92;max-width:880px;margin:0 0 10px;font-size:16.5px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}

.page-hero{position:relative;overflow:hidden;background:var(--ink);isolation:isolate}
.page-hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-hero .overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,31,53,.88),rgba(11,31,53,.45))}
.page-hero .content{position:relative;z-index:2;padding:62px 0}
.page-hero h1{color:#fff;font-size:44px;line-height:1.08;margin:10px 0 10px}
.page-hero p{color:#fff;opacity:.92;margin:0;max-width:900px}

footer{background:var(--ink);color:#fff}
footer .container{padding:34px 0}
footer a{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:18px}
.footer-title{font-family:"Montserrat",system-ui,sans-serif;font-weight:900}
@media (max-width:980px){
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-video h1{font-size:38px}
  .page-hero h1{font-size:36px}
}
/* --- v4 fixes (fixed top nav + footer readability + logo sizing) --- */
header{
  position:fixed !important;
  top:0; left:0; right:0;
  z-index:9999;
  background:rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(215,225,235,.9);
}
/* Create spacing for fixed header */
body{ padding-top:72px; }

/* Slightly reduce logo size */
.brand img{ height:32px !important; }

/* Footer readability (light footer like original cleaner concept) */
footer{
  background:#ffffff !important;
  color:#1B2B3B !important;
  border-top:1px solid var(--line);
}
footer a{ color:var(--blue) !important; }
footer .small{ color:var(--muted) !important; }
footer .footer-title{ color:var(--ink) !important; }

/* Ensure hero layers don't show bleed-through */
.hero-video, .page-hero{ isolation:isolate; }
.hero-panel{
  display:inline-block;
  padding:14px 16px;
  border-radius:16px;
  background:rgba(11,31,53,.18);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter: blur(10px);
}
@media (max-width:980px){
  body{ padding-top:82px; }
  .hero-panel{ width:100%; }
}

/* --- Diagram blocks (v8) --- */
.diagram-block{
  margin-top:18px;
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  background:#fff;
  box-shadow: 0 14px 30px rgba(11,31,53,.06);
}
.diagram-block img{ width:100%; height:auto; display:block; }
.diagram-caption{
  padding:14px 16px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:14px;
  line-height:1.4;
}