:root {
  --navy: #082b55;
  --navy-2: #0b3b6e;
  --charcoal: #111827;
  --slate: #475569;
  --muted: #64748b;
  --line: #e2e8f0;
  --soft: #f6f8fb;
  --soft-2: #eef4f8;
  --cyan: #46a6c6;
  --amber: #c47a1b;
  --risk: #c2410c;
  --white: #ffffff;
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.12);
  --shadow-soft: 0 12px 42px rgba(15, 23, 42, 0.08);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.section-pad { padding: 112px 0; }
.subtle { background: linear-gradient(180deg, #fff 0%, var(--soft) 100%); }
.dark-section {
  background:
    radial-gradient(circle at 8% 20%, rgba(70,166,198,.22), transparent 32%),
    radial-gradient(circle at 88% 72%, rgba(11,59,110,.42), transparent 30%),
    #071b34;
  color: var(--white);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226,232,240,.78);
}

.nav-shell {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--cyan));
  font-weight: 800;
  letter-spacing: -.04em;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-text strong { font-size: 18px; letter-spacing: -.03em; }
.brand-text small { color: var(--muted); font-size: 11px; letter-spacing: .03em; text-transform: uppercase; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--slate);
  font-size: 14px;
  font-weight: 600;
}
.nav-links a { transition: color .2s ease; }
.nav-links a:hover { color: var(--navy-2); }
.nav-cta {
  border: 1px solid var(--navy-2);
  color: var(--navy-2) !important;
  padding: 10px 16px;
  border-radius: 999px;
}

.nav-toggle { display: none; background: transparent; border: 0; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--charcoal); margin: 5px 0; }

.hero { min-height: calc(100vh - 78px); display: flex; align-items: center; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: .98fr 1.02fr;
  gap: 72px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--navy-2);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.dark-section .eyebrow, .light .eyebrow { color: #7dd3fc; }

h1, h2, h3, p { margin-top: 0; }
h1 {
  font-size: clamp(46px, 6vw, 76px);
  line-height: .96;
  letter-spacing: -.07em;
  margin-bottom: 26px;
}
h2 {
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.04;
  letter-spacing: -.055em;
  margin-bottom: 20px;
}
h3 { font-size: 22px; letter-spacing: -.03em; margin-bottom: 12px; }

.hero-subhead, .section-header p {
  color: var(--slate);
  font-size: 19px;
  max-width: 680px;
}
.dark-section .section-header p { color: rgba(255,255,255,.72); }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 999px;
  padding: 0 22px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.button.primary { color: var(--white); background: var(--navy-2); }
.button.secondary { color: var(--navy-2); border: 1px solid rgba(11,59,110,.28); background: rgba(255,255,255,.72); }

.hero-visual {
  min-height: 540px;
  position: relative;
  border: 1px solid rgba(226,232,240,.84);
  border-radius: 36px;
  background: linear-gradient(145deg, #fff, #f4f8fb);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.orb { position: absolute; border-radius: 50%; filter: blur(8px); opacity: .7; }
.orb-one { width: 260px; height: 260px; background: rgba(70,166,198,.2); top: -80px; right: -72px; }
.orb-two { width: 220px; height: 220px; background: rgba(11,59,110,.13); bottom: -90px; left: -70px; }
.system-map { position: absolute; inset: 34px; }
.map-lines { position: absolute; inset: 20px; width: calc(100% - 40px); height: calc(100% - 40px); z-index: 1; }
.map-lines path, .map-lines circle { fill: none; stroke: url(#lineGradient); stroke-width: 1.7; stroke-dasharray: 7 8; opacity: .58; }
.map-card {
  position: absolute;
  z-index: 3;
  width: 236px;
  padding: 18px;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(148,163,184,.22);
  border-radius: 22px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}
.map-card strong { display: block; margin: 10px 0 4px; letter-spacing: -.03em; }
.map-card small { color: var(--muted); }
.icon-chip {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 28px;
  padding: 0 8px;
  border-radius: 999px;
  color: var(--navy-2);
  background: #e7f3f9;
  font-size: 12px;
  font-weight: 800;
}
.ai-card { top: 42px; left: 46px; }
.machine-card { top: 142px; right: 40px; }
.human-card { bottom: 56px; left: 80px; }
.center-node {
  position: absolute;
  left: 50%; top: 50%; transform: translate(-50%,-50%);
  z-index: 4;
  width: 116px; height: 116px;
  display: grid; place-items: center;
  text-align: center;
  border-radius: 50%;
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  background: linear-gradient(135deg, var(--navy), var(--cyan));
  box-shadow: 0 22px 50px rgba(8, 43, 85, .32);
}

.section-header { max-width: 850px; margin-bottom: 54px; }
.section-header.narrow { max-width: 760px; }
.section-header.light h2 { color: var(--white); }

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 70px 1fr;
  gap: 24px;
  align-items: center;
}
.comparison-card {
  position: relative;
  min-height: 340px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  padding: 34px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.card-topline { position: absolute; left: 0; top: 0; right: 0; height: 5px; background: var(--line); }
.physical .card-topline { background: linear-gradient(90deg, var(--navy-2), var(--cyan)); }
.card-kicker { color: var(--muted); font-weight: 800; text-transform: uppercase; letter-spacing: .12em; font-size: 12px; }
.comparison-card li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  color: var(--slate);
  border-bottom: 1px solid rgba(226,232,240,.74);
}
.comparison-card li::before {
  content: "";
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--navy-2);
  flex: 0 0 auto;
}
.bridge-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--navy-2);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  font-size: 30px;
}

.timeline {
  position: relative;
  min-height: 260px;
  padding: 84px 0 44px;
}
.timeline-track {
  position: absolute;
  left: 4%; right: 4%; top: 106px;
  height: 2px;
  background: linear-gradient(90deg, #cbd5e1 0%, #cbd5e1 53%, var(--navy-2) 82%, var(--cyan) 100%);
}
.timeline-item { position: absolute; top: 78px; width: 190px; }
.timeline-item strong { display: block; margin-top: 52px; font-size: 28px; letter-spacing: -.04em; }
.timeline-item p { color: var(--slate); margin: 4px 0 0; }
.timeline-item .dot {
  position: absolute;
  top: 20px; left: 0;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--white);
  border: 4px solid #94a3b8;
}
.timeline-item .dot.active { border-color: var(--cyan); box-shadow: 0 0 0 10px rgba(70,166,198,.14); }
.item-1950 { left: 4%; }
.item-2012 { left: 47%; }
.item-2022 { left: 72%; }
.item-2026 { right: 1%; }

.anatomy-grid {
  display: grid;
  grid-template-columns: .78fr 1.22fr;
  gap: 54px;
  align-items: center;
}
.anatomy-panel {
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 34px;
  padding: 26px;
  background: rgba(255,255,255,.05);
  box-shadow: 0 30px 90px rgba(0,0,0,.28);
}
.layers { display: grid; gap: 14px; }
.layer-card {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255,255,255,.1), rgba(255,255,255,.035));
  backdrop-filter: blur(16px);
}
.layer-card strong { display: block; margin-bottom: 2px; letter-spacing: -.02em; }
.layer-card span { color: rgba(255,255,255,.68); font-size: 14px; }
.layer-icon {
  width: 52px; height: 52px;
  border-radius: 16px;
  display: grid; place-items: center;
  background: rgba(125,211,252,.12);
}
.layer-icon svg { width: 28px; height: 28px; fill: #7dd3fc; }
.hardware { border-color: rgba(196,122,27,.42); }
.hardware .layer-icon { background: rgba(196,122,27,.16); }
.hardware .layer-icon svg { fill: #fbbf24; }
.failure-chain {
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.failure-chain span, .failure-chain strong {
  position: relative;
  padding: 9px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.12);
}
.failure-chain strong { background: rgba(194,65,12,.28); border-color: rgba(251,146,60,.34); color: #fed7aa; }

.risk-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.risk-card {
  min-height: 304px;
  padding: 30px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: var(--shadow-soft);
  transition: transform .22s ease, box-shadow .22s ease;
}
.risk-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.risk-card p { color: var(--slate); font-size: 17px; }
.risk-icon {
  width: 74px; height: 74px;
  border-radius: 24px;
  margin-bottom: 30px;
  background: var(--soft-2);
  position: relative;
  overflow: hidden;
}
.risk-icon::before, .risk-icon::after { content: ""; position: absolute; }
.risk-icon.glare::before { width: 80px; height: 80px; background: radial-gradient(circle, #fbbf24, transparent 62%); left: -20px; top: -18px; }
.risk-icon.glare::after { width: 44px; height: 7px; background: var(--navy-2); transform: rotate(-18deg); left: 24px; top: 40px; border-radius: 999px; }
.risk-icon.human::before { width: 18px; height: 18px; border-radius: 50%; background: var(--navy-2); left: 28px; top: 14px; }
.risk-icon.human::after { width: 38px; height: 42px; border: 8px solid var(--cyan); border-left: 0; border-bottom: 0; transform: rotate(28deg); left: 15px; top: 34px; border-radius: 12px; }
.risk-icon.fleet::before { width: 15px; height: 15px; border-radius: 50%; background: var(--navy-2); left: 18px; top: 18px; box-shadow: 22px 12px 0 var(--cyan), 5px 37px 0 var(--navy-2), 42px 36px 0 var(--cyan); }
.risk-icon.fleet::after { width: 46px; height: 42px; border: 1.5px dashed rgba(11,59,110,.48); left: 14px; top: 18px; border-radius: 18px; }

.scale-layout .section-header { max-width: 920px; }
.scale-diagram {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 26px;
}
.scale-box {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  text-align: center;
  box-shadow: var(--shadow-soft);
}
.scale-box.highlight { border-color: rgba(70,166,198,.4); background: linear-gradient(180deg, #fff, #eef8fc); }
.scale-label { display: inline-block; color: var(--muted); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .13em; margin-bottom: 24px; }
.scale-node {
  max-width: 260px;
  margin: 0 auto;
  padding: 17px 20px;
  border-radius: 18px;
  color: var(--navy-2);
  background: #e7f3f9;
  font-weight: 800;
}
.scale-node.muted { color: var(--slate); background: var(--soft); }
.scale-arrow { color: var(--navy-2); font-size: 24px; margin: 12px 0; }
.scale-box strong { display: block; margin-top: 16px; font-size: 24px; letter-spacing: -.04em; }
.equation {
  margin-top: 26px;
  padding: 22px 26px;
  border: 1px solid rgba(11,59,110,.16);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--navy-2);
  font-size: clamp(20px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -.045em;
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.data-grid {
  display: grid;
  grid-template-columns: .88fr 1.12fr;
  gap: 56px;
  align-items: center;
}
.triangle {
  position: relative;
  min-height: 470px;
  border-radius: 34px;
  background: linear-gradient(145deg, #fff, var(--soft));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}
.triangle::before {
  content: "";
  position: absolute;
  inset: 82px 74px;
  background: conic-gradient(from 30deg, rgba(70,166,198,.14), rgba(11,59,110,.16), rgba(196,122,27,.13), rgba(70,166,198,.14));
  clip-path: polygon(50% 0%, 96% 80%, 4% 80%);
  border-radius: 14px;
}
.triangle-point {
  position: absolute;
  width: 205px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.9);
  box-shadow: var(--shadow-soft);
}
.triangle-point strong, .triangle-point span { display: block; }
.triangle-point span { color: var(--muted); font-size: 14px; margin-top: 4px; }
.regulators { top: 36px; left: 50%; transform: translateX(-50%); }
.enterprises { bottom: 54px; right: 34px; }
.workers { bottom: 54px; left: 34px; }
.triangle-center {
  position: absolute;
  left: 50%; top: 54%; transform: translate(-50%,-50%);
  width: 132px; height: 132px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--white);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-size: 13px;
  background: linear-gradient(135deg, var(--navy), var(--cyan));
  box-shadow: 0 24px 62px rgba(8,43,85,.28);
}

.advisory-grid {
  display: grid;
  grid-template-columns: .88fr 1.12fr;
  gap: 56px;
  align-items: center;
}
.advisory-map {
  position: relative;
  min-height: 520px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 34px;
  background: rgba(255,255,255,.05);
  overflow: hidden;
}
.advisory-map::before {
  content: "";
  position: absolute; inset: 80px;
  border: 1px dashed rgba(125,211,252,.38);
  border-radius: 50%;
}
.pairc-center {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
  width: 144px; height: 144px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #fff, #dff7ff);
  color: var(--navy);
  font-weight: 900;
  font-size: 28px;
  letter-spacing: -.04em;
  box-shadow: 0 30px 80px rgba(0,0,0,.34);
}
.stakeholder {
  position: absolute;
  max-width: 230px;
  padding: 17px 18px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.9);
  font-weight: 700;
  text-align: center;
  backdrop-filter: blur(14px);
}
.stakeholder.top { top: 36px; left: 50%; transform: translateX(-50%); }
.stakeholder.right { right: 32px; top: 50%; transform: translateY(-50%); }
.stakeholder.bottom { bottom: 40px; left: 50%; transform: translateX(-50%); }
.stakeholder.left { left: 32px; top: 50%; transform: translateY(-50%); }

.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.audience-grid article {
  min-height: 220px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-soft);
}
.audience-grid h3 { font-size: 19px; }
.audience-grid p { color: var(--slate); }

.cta-section { padding: 82px 0 104px; background: var(--soft); }
.cta-card {
  text-align: center;
  padding: 76px 34px;
  border-radius: 36px;
  background:
    radial-gradient(circle at 20% 10%, rgba(70,166,198,.18), transparent 30%),
    radial-gradient(circle at 84% 90%, rgba(11,59,110,.12), transparent 36%),
    var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.cta-card h2 { max-width: 760px; margin-inline: auto; }
.cta-card p { color: var(--slate); max-width: 760px; margin-inline: auto; font-size: 18px; }
.cta-card .button { margin-top: 22px; }
.small-note { margin-top: 18px !important; font-size: 13px !important; color: var(--muted) !important; }

.site-footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  color: var(--slate);
  background: var(--white);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 22px;
  align-items: center;
}
.footer-grid strong { color: var(--charcoal); }
.footer-grid p { margin: 0; }
.footer-links { display: flex; gap: 18px; font-weight: 700; font-size: 14px; }
.copyright { text-align: right; font-size: 14px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .section-pad { padding: 82px 0; }
  .hero-grid, .anatomy-grid, .data-grid, .advisory-grid { grid-template-columns: 1fr; gap: 42px; }
  .hero-visual { min-height: 500px; }
  .comparison-grid { grid-template-columns: 1fr; }
  .bridge-icon { transform: rotate(90deg); margin: 0 auto; }
  .timeline { min-height: auto; padding: 12px 0 0 24px; display: grid; gap: 22px; }
  .timeline-track { left: 8px; right: auto; top: 18px; bottom: 12px; height: auto; width: 2px; background: linear-gradient(180deg, #cbd5e1, var(--cyan)); }
  .timeline-item { position: relative; top: auto; left: auto; right: auto; width: auto; padding-left: 28px; }
  .timeline-item strong { margin-top: 0; font-size: 24px; }
  .timeline-item .dot { top: 8px; left: -24px; }
  .risk-card-grid, .scale-diagram { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-links { justify-content: center; }
  .copyright { text-align: center; }
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    left: 16px; right: 16px; top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 16px 18px; border-bottom: 1px solid var(--line); }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-cta { border: 0; border-radius: 0; }
  .brand-text small { display: none; }
  .hero { min-height: auto; padding-top: 64px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .hero-visual { min-height: 440px; border-radius: 26px; }
  .system-map { inset: 18px; }
  .map-card { width: 205px; padding: 14px; }
  .ai-card { top: 20px; left: 12px; }
  .machine-card { top: 132px; right: 8px; }
  .human-card { bottom: 24px; left: 16px; }
  .center-node { width: 94px; height: 94px; font-size: 11px; }
  .comparison-card, .risk-card, .scale-box { padding: 24px; }
  .anatomy-panel { padding: 16px; border-radius: 24px; }
  .layer-card { grid-template-columns: 46px 1fr; padding: 14px; }
  .layer-icon { width: 42px; height: 42px; border-radius: 13px; }
  .failure-chain { align-items: stretch; flex-direction: column; }
  .failure-chain span, .failure-chain strong { border-radius: 14px; text-align: center; }
  .triangle { min-height: 560px; }
  .triangle::before { inset: 126px 26px; }
  .triangle-point { width: calc(100% - 48px); left: 24px !important; right: auto !important; transform: none !important; }
  .regulators { top: 24px; }
  .enterprises { bottom: 116px; }
  .workers { bottom: 24px; }
  .triangle-center { top: 47%; }
  .advisory-map { min-height: 600px; }
  .advisory-map::before { inset: 120px 32px; }
  .stakeholder { left: 24px !important; right: 24px !important; max-width: none; transform: none !important; }
  .stakeholder.top { top: 28px; }
  .stakeholder.right { top: 138px; }
  .stakeholder.bottom { bottom: 28px; }
  .stakeholder.left { top: auto; bottom: 138px; }
  .audience-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 56px 24px; }
}