: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;
}


/* v15: split logo (globe + typography) with hover glow */
.brand{ display:flex; align-items:center; gap:14px; }
.brand-link{ display:flex; align-items:center; gap:14px; text-decoration:none; }
.brand-mark{
  display:flex;
  align-items:center;
  justify-content:center;
  width:112px;
  height:112px;
  border-radius:999px;
  background: radial-gradient(circle at 30% 30%, rgba(0,174,239,.18), rgba(30,95,175,.06));
  box-shadow: 0 10px 26px rgba(11,31,53,.12);
  transition: transform .25s ease, filter .25s ease, box-shadow .25s ease;
}
.brand-mark img{
  height:92px; width:auto; display:block;
  filter: drop-shadow(0 10px 14px rgba(11,31,53,.22));
}
.brand-text{ display:flex; flex-direction:column; line-height:1.05; }
.brand-name{
  font-weight:900;
  letter-spacing:.4px;
  font-size:28px;
  color: var(--ink, #0B1F35);
}
.brand-tagline{
  margin-top:6px;
  font-size:12px;
  letter-spacing:1.2px;
  text-transform:uppercase;
  color: var(--muted, #5B6B7B);
}

/* hover glow + subtle rotation */
.brand-link:hover .brand-mark{
  transform: translateY(-1px) rotate(-2deg) scale(1.03);
  box-shadow: 0 14px 34px rgba(11,31,53,.18);
  filter: saturate(1.08);
}
.brand-link:hover .brand-mark img{
  filter: drop-shadow(0 12px 18px rgba(0,174,239,.28)) drop-shadow(0 14px 22px rgba(30,95,175,.22));
}

/* keep header aligned even with larger brand */
header .container.nav{
  align-items:center;
}
header{
  padding-top:10px;
  padding-bottom:10px;
}

/* responsive */
@media (max-width: 900px){
  .brand-mark{ width:86px; height:86px; }
  .brand-mark img{ height:68px; }
  .brand-name{ font-size:22px; }
  .brand-tagline{ display:none; }
}

/* v16: fix globe whitespace + improve header rendering */
.brand{ position:relative; z-index:50; }
.brand-mark{
  background: transparent !important;
  box-shadow: none !important;
  width: 120px;
  height: 120px;
}
.brand-mark::before{
  content:"";
  position:absolute;
  inset:6px;
  border-radius:999px;
  background: radial-gradient(circle at 35% 35%, rgba(0,174,239,.22), rgba(30,95,175,.08));
  box-shadow: 0 12px 28px rgba(11,31,53,.14);
}
.brand-mark img{
  position:relative;
  z-index:2;
  height: 112px !important;
  width: 112px !important;
  object-fit: contain;
  display:block;
  filter: drop-shadow(0 14px 18px rgba(11,31,53,.22));
  transform-origin: 50% 50%;
  animation: icpSpin 26s linear infinite;
}
@keyframes icpSpin{
  from{ transform: rotate(0deg); }
  to{ transform: rotate(360deg); }
}
.brand-link:hover .brand-mark{
  transform: none !important;
  filter: none !important;
}
.brand-link:hover .brand-mark img{
  animation-duration: 10s;
  filter: drop-shadow(0 14px 22px rgba(0,174,239,.30)) drop-shadow(0 16px 26px rgba(30,95,175,.24));
}

/* accessibility */
@media (prefers-reduced-motion: reduce){
  .brand-mark img{ animation:none !important; }
}

/* keep header clean (prevents faint lines/overlays) */
header, .navbar, .site-header{ background-clip: padding-box; }

@media (max-width: 900px){
  .brand-mark{ width:92px; height:92px; }
  .brand-mark::before{ inset:5px; }
  .brand-mark img{ height:84px !important; width:84px !important; }
}

/* v17: ICP (black) + SYSTEMS (blue depth) brand typography */
.brand-name{
  text-transform: uppercase;
  letter-spacing: .8px;
}
.brand-icp{
  color:#0B0F14; /* deep black */
}
.brand-systems{
  background: linear-gradient(180deg, #2FA8FF 0%, #0E5FAF 55%, #0B3E7A 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow:
    0 1px 0 rgba(255,255,255,.20),
    0 10px 18px rgba(11,31,53,.10);
}

/* v18: updated globe icon (realistic earth) + correct rotation axis */
.brand-mark img{
  animation: icpEarthSpin 18s linear infinite !important;
  transform-style: preserve-3d;
  backface-visibility: hidden;
}
@keyframes icpEarthSpin{
  from{ transform: rotateY(0deg); }
  to{ transform: rotateY(360deg); }
}
.brand-link:hover .brand-mark img{
  animation-duration: 8s !important;
}

/* v18: prevent hero text overlay into next section */
.hero, .hero-wrap, .hero-section{
  overflow: hidden;
}
.hero .container, .hero .hero-content{
  padding-top: 48px;
  padding-bottom: 48px;
}
.section{
  position: relative;
  z-index: 1;
}

/* v19: header height fix + professional static globe */
:root{
  --headerH: 96px;
}

/* Make sticky header compact (prevents overlay into hero) */
header{ background: rgba(255,255,255,.96); }
.nav{ padding: 8px 0; }
.brand-mark{
  width: 78px !important;
  height: 78px !important;
}
.brand-mark::before{
  inset: 5px !important;
}
.brand-mark img{
  height: 70px !important;
  width: 70px !important;
  animation: none !important;   /* disable paper-like rotation */
  transform: none !important;
}

/* Keep glow on hover (no spin) */
.brand-link:hover .brand-mark img{
  animation: none !important;
  transform: none !important;
}

/* Ensure hero content always clears sticky header */
.hero-video .content{
  padding-top: calc(86px + 28px) !important; /* extra clearance for sticky header */
}

/* Prevent any bleed/overlay lines into next sections */
.hero-video{ overflow:hidden; }
.hero-video h1, .hero-video p{ text-shadow: 0 2px 10px rgba(0,0,0,.25); }

/* Responsive: even smaller header */
@media (max-width: 900px){
  :root{ --headerH: 78px; }
  .nav{ padding: 6px 0; }
  .brand-mark{ width: 62px !important; height: 62px !important; }
  .brand-mark img{ height: 56px !important; width: 56px !important; }
  .hero-video .content{ padding-top: 96px !important; }
}

/* v20: true revolving earth (texture roll) + tight crop */
.brand{ position:relative; z-index:60; }
.brand-mark{
  width: 78px !important;
  height: 78px !important;
  background: transparent !important;
  box-shadow: none !important;
  display:flex;
  align-items:center;
  justify-content:center;
}
.globe-sphere{
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background-image: url("../img/earth_texture.png");
  background-size: 140px 70px;   /* repeats horizontally for roll illusion */
  background-repeat: repeat-x;
  background-position: 0 50%;
  box-shadow: 0 14px 26px rgba(11,31,53,.22);
  position: relative;
  overflow: hidden;
  animation: earthRoll 18s linear infinite;
  transform: translateZ(0);
}
/* lighting & atmosphere */
.globe-sphere::before{
  content:"";
  position:absolute;
  inset:-6px;
  border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.42), rgba(255,255,255,0) 38%),
              radial-gradient(circle at 70% 80%, rgba(0,0,0,.25), rgba(0,0,0,0) 55%);
  pointer-events:none;
  mix-blend-mode: soft-light;
}
.globe-sphere::after{
  content:"";
  position:absolute;
  inset:-2px;
  border-radius:50%;
  box-shadow: inset -10px 0 18px rgba(0,0,0,.28), inset 10px 0 10px rgba(255,255,255,.10);
  pointer-events:none;
}
@keyframes earthRoll{
  from{ background-position: 0 50%; }
  to{ background-position: -140px 50%; }
}

/* hover glow (keep professional) */
.brand-link:hover .globe-sphere{
  box-shadow: 0 18px 34px rgba(11,31,53,.22), 0 0 0 6px rgba(0,174,239,.12);
  animation-duration: 10s;
}

/* reduced motion */
@media (prefers-reduced-motion: reduce){
  .globe-sphere{ animation:none !important; }
}

/* ensure hero never sits behind sticky header (keeps your SDVOSB line visible) */
.hero-video .content{
  padding-top: 120px !important;
}

.brand-mark img{ display:none !important; }