:root {
  --bg: #f6f7fa;
  --surface: #ffffff;
  --surface-soft: #edf1f7;
  --ink: #0b1320;
  --ink-2: #253247;
  --muted: #627087;
  --line: rgba(11, 19, 32, .12);
  --dark: #08111f;
  --dark-2: #0e1b2d;
  --mint: #62e7c3;
  --pink: #ef136e;
  --blue: #91a8ff;
  --max: 1200px;
  --radius: 26px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, sans-serif;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; }
.shell { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: 112px; }
.ambient {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(95px);
  opacity: .18;
  pointer-events: none;
}
.ambient-one { width: 420px; height: 420px; background: var(--pink); top: -180px; right: -120px; }
.ambient-two { width: 420px; height: 420px; background: var(--blue); top: 55vh; left: -260px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 74px;
  padding-inline: max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(11,19,32,.08);
  background: rgba(246,247,250,.86);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 12px; font: 800 15px Manrope, sans-serif; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 39px;
  height: 39px;
  border-radius: 12px;
  color: white;
  background: var(--dark);
  font-size: 13px;
}
nav { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 600; }
nav a { transition: opacity .2s ease, transform .2s ease; }
nav a:hover { opacity: .62; transform: translateY(-1px); }
.nav-cta { padding: 10px 16px; color: white; background: var(--dark); border-radius: 999px; }
.menu-button { display: none; border: 0; background: none; padding: 8px; }
.menu-button span { display: block; width: 24px; height: 2px; margin: 6px 0; background: var(--ink); }

.eyebrow {
  margin: 0 0 18px;
  color: #47617c;
  font: 800 11px Manrope, sans-serif;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.mint { color: var(--mint); }
h1,h2,h3 { margin-top: 0; font-family: Manrope, sans-serif; letter-spacing: -.04em; line-height: 1.08; }
h1 { max-width: 850px; margin-bottom: 28px; font-size: clamp(48px, 6.3vw, 86px); }
h2 { margin-bottom: 22px; font-size: clamp(38px, 4.7vw, 64px); }
h3 { font-size: 26px; }
p { margin-top: 0; }

.hero {
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  gap: 78px;
  align-items: center;
  min-height: 780px;
  padding-block: 72px 90px;
}
.hero-intro { max-width: 780px; margin-bottom: 14px; color: var(--ink-2); font-size: 20px; }
.hero-support { max-width: 760px; color: var(--muted); font-size: 16px; }
.hero-actions { display: flex; gap: 14px; margin: 36px 0 48px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 14px 35px rgba(11,19,32,.14); }
.button.primary { color: white; background: var(--dark); }
.button.secondary { background: rgba(255,255,255,.5); }
.signal-row { display: flex; gap: 42px; }
.signal-row div { display: flex; flex-direction: column; }
.signal-row strong { font: 800 29px Manrope, sans-serif; }
.signal-row span { color: var(--muted); font-size: 12px; }

.hero-art { position: relative; min-height: 570px; display: grid; place-items: center; }
.portrait-ring {
  position: relative;
  width: min(520px, 100%);
  aspect-ratio: 1;
  padding: 18px;
  border-radius: 50%;
  background: linear-gradient(145deg, rgba(239,19,110,.2), rgba(98,231,195,.16));
  box-shadow: 0 34px 90px rgba(11,19,32,.18);
}
.portrait-ring::before {
  content: "";
  position: absolute;
  inset: -15px;
  border: 1px solid rgba(11,19,32,.12);
  border-radius: 50%;
}
.portrait-ring img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; background: white; }
.float-card {
  position: absolute;
  min-width: 180px;
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,.58);
  border-radius: 17px;
  background: rgba(255,255,255,.83);
  box-shadow: 0 20px 55px rgba(11,19,32,.13);
  backdrop-filter: blur(16px);
}
.float-card span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; }
.float-card strong { font: 800 14px Manrope, sans-serif; }
.card-a { left: -24px; top: 18%; }
.card-b { right: -12px; bottom: 18%; }

.credibility-strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.72); }
.strip-inner { display: flex; flex-wrap: wrap; justify-content: center; gap: 32px; padding-block: 24px; }
.strip-inner span { color: #44546a; font: 700 13px Manrope, sans-serif; }

.section-heading { max-width: 800px; margin-bottom: 52px; }
.section-heading > p:last-child { color: var(--muted); font-size: 18px; }

.impact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.impact-card {
  min-height: 330px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.82);
  box-shadow: 0 18px 55px rgba(11,19,32,.045);
}
.impact-card.featured {
  grid-column: span 2;
  min-height: 430px;
  padding: 44px;
  background: linear-gradient(135deg, #dff9f1, #f4fbff);
}
.card-label { margin-bottom: 36px; color: #41665c; font: 800 11px Manrope, sans-serif; letter-spacing: .14em; text-transform: uppercase; }
.impact-card h3 { max-width: 860px; font-size: 32px; }
.impact-card.featured h3 { font-size: clamp(34px, 4vw, 52px); }
.impact-card p { max-width: 850px; color: var(--muted); }
.metric-grid { display: flex; gap: 72px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line); }
.metric-grid div { display: flex; flex-direction: column; }
.metric-grid strong { font: 800 36px Manrope, sans-serif; }
.metric-grid span { color: var(--muted); font-size: 12px; }

.dark-section { color: white; background: var(--dark); }
.dark-section .section-heading > p:last-child { color: #a5b1c1; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.principle {
  min-height: 250px;
  padding: 28px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 22px;
  background: var(--dark-2);
}
.principle span { color: var(--mint); font: 800 12px Manrope, sans-serif; }
.principle h3 { margin: 42px 0 14px; font-size: 22px; }
.principle p { color: #a9b5c5; font-size: 14px; }

.split-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 88px; }
.sticky-copy { position: sticky; top: 125px; align-self: start; }
.sticky-copy p:last-child { color: var(--muted); font-size: 17px; }
.playbook { display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 31px 0; border-top: 1px solid var(--line); }
.playbook:last-child { border-bottom: 1px solid var(--line); }
.playbook-index { color: var(--muted); font: 800 11px Manrope, sans-serif; }
.playbook h3 { margin-bottom: 10px; font-size: 24px; }
.playbook p { margin: 0; color: var(--muted); }

.soft-section { background: var(--surface-soft); }
.architecture-board {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
  margin-bottom: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: white;
}
.architecture-copy { padding: 46px; }
.architecture-copy h3 { font-size: 32px; }
.architecture-copy p, .architecture-copy li { color: var(--muted); }
.architecture-copy ul { display: grid; gap: 13px; padding-left: 20px; }
.architecture-copy strong { color: var(--ink); }
.architecture-visual {
  position: relative;
  min-height: 480px;
  overflow: hidden;
  background:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
    var(--dark);
  background-size: 34px 34px;
}
.arch-node {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50%;
  color: white;
  background: rgba(255,255,255,.08);
  font: 700 13px Manrope, sans-serif;
  backdrop-filter: blur(10px);
}
.arch-node.center { width: 124px; height: 124px; left: calc(50% - 62px); top: calc(50% - 62px); color: var(--dark); background: var(--mint); }
.n1 { left: 10%; top: 15%; }.n2 { right: 10%; top: 15%; }.n3 { left: 7%; bottom: 12%; }.n4 { right: 7%; bottom: 12%; }.n5 { left: calc(50% - 46px); top: 5%; }
.connector { position: absolute; z-index: 1; height: 1px; background: rgba(255,255,255,.22); transform-origin: left center; }
.c1 { width: 155px; left: 24%; top: 32%; transform: rotate(23deg); }
.c2 { width: 155px; left: 51%; top: 45%; transform: rotate(-23deg); }
.c3 { width: 160px; left: 22%; top: 69%; transform: rotate(-21deg); }
.c4 { width: 160px; left: 51%; top: 57%; transform: rotate(21deg); }
.c5 { width: 105px; left: 50%; top: 24%; transform: rotate(90deg); }

.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.capability { min-height: 220px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.76); }
.capability h3 { font-size: 21px; }
.capability p { color: var(--muted); font-size: 14px; }

.timeline { border-top: 1px solid var(--line); }
.timeline-item { display: grid; grid-template-columns: 170px 1fr; gap: 28px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.timeline-year { color: var(--muted); font: 800 12px Manrope, sans-serif; text-transform: uppercase; letter-spacing: .12em; }
.timeline-item h3 { margin-bottom: 9px; font-size: 24px; }
.timeline-item p { margin: 0; color: var(--muted); }

.thinking-section { color: white; background: var(--dark); }
.thinking-section .section-heading > p:last-child { color: #a5b1c1; }
.thinking-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.thinking-card {
  min-height: 300px;
  padding: 29px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 23px;
  background: var(--dark-2);
}
.thinking-card span { color: var(--mint); font: 800 11px Manrope, sans-serif; letter-spacing: .13em; text-transform: uppercase; }
.thinking-card h3 { margin: 42px 0 15px; font-size: 24px; }
.thinking-card p { color: #a7b4c4; font-size: 14px; }

.final-cta { padding-block: 130px; text-align: center; }
.final-cta h2 { max-width: 980px; margin-inline: auto; }
.final-cta > p:not(.eyebrow) { max-width: 680px; margin: 0 auto 32px; color: var(--muted); font-size: 17px; }

footer { color: white; background: #050b14; }
.footer-inner { display: grid; grid-template-columns: 1fr 1.5fr auto; gap: 36px; align-items: end; padding-block: 48px; }
.footer-inner strong { font-family: Manrope, sans-serif; }
.footer-inner p { margin: 6px 0 0; color: #9ca9ba; font-size: 12px; }
.disclaimer { max-width: 630px; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 980px) {
  .menu-button { display: block; }
  nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 18px;
    right: 18px;
    flex-direction: column;
    align-items: stretch;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: white;
    box-shadow: 0 24px 55px rgba(11,19,32,.14);
  }
  nav.open { display: flex; }
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 40px; padding-top: 70px; }
  .hero-art { min-height: 510px; }
  .impact-grid, .principle-grid, .capability-grid, .thinking-grid { grid-template-columns: 1fr 1fr; }
  .impact-card.featured { grid-column: span 2; }
  .split-layout { grid-template-columns: 1fr; gap: 42px; }
  .sticky-copy { position: static; }
  .architecture-board { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .shell { width: min(100% - 32px, var(--max)); }
  .section { padding-block: 82px; }
  .site-header { padding-inline: 18px; }
  .brand > span:last-child { display: none; }
  h1 { font-size: 45px; }
  h2 { font-size: 38px; }
  .hero-intro { font-size: 17px; }
  .hero-actions, .signal-row, .metric-grid { flex-direction: column; }
  .signal-row { gap: 17px; }
  .hero-art { min-height: 390px; }
  .portrait-ring { width: 330px; }
  .float-card { display: none; }
  .impact-grid, .principle-grid, .capability-grid, .thinking-grid { grid-template-columns: 1fr; }
  .impact-card.featured { grid-column: auto; }
  .impact-card, .impact-card.featured, .architecture-copy { padding: 26px; }
  .impact-card.featured h3 { font-size: 34px; }
  .metric-grid { gap: 16px; }
  .architecture-visual { min-height: 390px; }
  .arch-node { width: 74px; height: 74px; font-size: 11px; }
  .arch-node.center { width: 104px; height: 104px; left: calc(50% - 52px); top: calc(50% - 52px); }
  .n5 { left: calc(50% - 37px); }
  .timeline-item { grid-template-columns: 1fr; gap: 10px; }
}