:root {
  --bg: #06111d;
  --bg-soft: #0b1a2b;
  --ink: #f5f8fc;
  --text: #e8eef6;
  --muted: #9facbd;
  --muted-strong: #c8d4e2;
  --panel: rgba(9, 22, 36, 0.9);
  --panel-muted: rgba(15, 33, 52, 0.9);
  --line: rgba(166, 199, 230, 0.17);
  --line-strong: rgba(166, 199, 230, 0.34);
  --accent: #8fd8ff;
  --accent-strong: #b7e6ff;
  --accent-soft: rgba(143, 216, 255, 0.13);
  --caution: #d8a348;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.34);
  --radius: 8px;
  --radius-sm: 6px;
  --content: min(1160px, calc(100vw - 32px));
  --header-offset: 92px;
  --curve: cubic-bezier(0.2, 0.7, 0.2, 1);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(4, 11, 20, 0.84), rgba(6, 17, 29, 0.96)),
    repeating-linear-gradient(0deg, transparent 0, transparent 47px, rgba(190, 218, 255, 0.035) 48px),
    repeating-linear-gradient(90deg, transparent 0, transparent 47px, rgba(190, 218, 255, 0.035) 48px),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

img {
  max-width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header,
.section,
.site-footer {
  width: var(--content);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 12px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 12px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(5, 13, 23, 0.82);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  background: rgba(5, 13, 23, 0.94);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 16px;
  height: 16px;
  flex: none;
  border: 3px solid var(--accent);
  border-radius: 50%;
  background: var(--bg-soft);
  box-shadow: inset 0 0 0 3px var(--bg-soft), 0 0 0 1px rgba(143, 216, 255, 0.38);
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-text strong,
.brand-text span,
.eyebrow,
.section-label,
.card-index,
.panel-label,
.panel-topline,
.panel-foot,
.metric-trend,
.step-number {
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand-text strong {
  color: var(--ink);
  font-size: 15px;
  font-weight: 760;
}

.brand-text span {
  color: var(--muted);
  font-size: 11px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--muted-strong);
  font-size: 14px;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.story-nav a:hover,
.story-nav a:focus-visible,
.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--ink);
  outline: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
  border: 1px solid rgba(143, 216, 255, 0.28);
  background: var(--accent-soft);
  color: var(--accent-strong) !important;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-muted);
  color: var(--ink);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

main {
  padding-bottom: 80px;
}

.section {
  position: relative;
  scroll-margin-top: calc(var(--header-offset) + 16px);
  padding-block: 64px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.84fr);
  gap: 64px;
  align-items: center;
  padding-top: 96px;
  padding-bottom: 40px;
}

.hero-copy {
  display: grid;
  gap: 24px;
}

.eyebrow,
.section-label,
.card-index,
.panel-label,
.panel-topline,
.metric-trend,
.step-number {
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 760;
}

.hero h1,
.section-head h2,
.page-hero h1,
.cta-band h2 {
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 760;
  letter-spacing: 0;
  line-height: 1.05;
}

.hero h1 {
  max-width: 760px;
  font-size: 74px;
}

.lead,
.section-head p,
.card p,
.step-card p,
.trust-card p,
.case-row,
.page-hero p,
.page-block p,
.audit-list li,
.contact-card p,
.site-footer p {
  color: var(--muted);
  line-height: 1.65;
}

.lead {
  max-width: 660px;
  margin: 0;
  font-size: 18px;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 720;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.button-primary {
  background: linear-gradient(135deg, #d8f2ff, #8fd8ff);
  color: #06111d;
}

.button-secondary {
  border-color: var(--line);
  background: var(--panel);
  color: var(--ink);
}

.signal-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.signal-strip span {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted-strong);
  font-size: 14px;
}

.hero-panel,
.stacked-panels,
.capability-grid,
.process-grid,
.use-case-grid,
.trust-grid,
.page-grid,
.boundary-grid,
.contact-grid {
  display: grid;
  gap: 16px;
}

.hero-panel {
  align-items: start;
}

.panel,
.card,
.case-card,
.trust-card,
.step-card,
.cta-band,
.page-block,
.contact-card,
.audit-card,
.story-nav a {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel {
  padding: 18px;
}

.network-panel {
  border-color: rgba(143, 216, 255, 0.24);
  background: linear-gradient(180deg, rgba(12, 31, 50, 0.96), rgba(7, 18, 31, 0.96));
}

.panel-topline,
.panel-foot,
.panel-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-topline,
.panel-foot,
.metric-trend {
  color: var(--muted);
  font-size: 11px;
}

.network-grid {
  position: relative;
  height: 270px;
  margin: 16px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(90deg, rgba(190, 218, 255, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(190, 218, 255, 0.055) 1px, transparent 1px),
    rgba(5, 13, 23, 0.72);
  background-size: 40px 40px;
  overflow: hidden;
}

.network-grid::after {
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 40%;
  height: 36px;
  border-left: 3px solid var(--caution);
  background: linear-gradient(90deg, rgba(216, 163, 72, 0.16), transparent);
  content: "";
}

.network-grid .node,
.network-grid .link {
  position: absolute;
  display: block;
}

.network-grid .node {
  width: 14px;
  height: 14px;
  border: 3px solid var(--bg-soft);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px rgba(143, 216, 255, 0.5);
}

.node-a { top: 18%; left: 18%; }
.node-b { top: 28%; left: 66%; }
.node-c { top: 44%; left: 42%; width: 18px; height: 18px; background: #f5f8fc; }
.node-d { top: 68%; left: 72%; }
.node-e { top: 72%; left: 24%; }
.node-f { top: 54%; left: 12%; }

.network-grid .link {
  height: 2px;
  transform-origin: left center;
  background: rgba(143, 216, 255, 0.58);
}

.link-a { top: 22%; left: 20%; width: 52%; transform: rotate(8deg); }
.link-b { top: 47%; left: 16%; width: 29%; transform: rotate(-4deg); }
.link-c { top: 49%; left: 43%; width: 30%; transform: rotate(33deg); }
.link-d { top: 67%; left: 24%; width: 46%; transform: rotate(-6deg); }

.stacked-panels {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 128px;
}

.metric-panel strong {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-size: 19px;
  line-height: 1.25;
}

.story-nav {
  position: sticky;
  top: 84px;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  width: var(--content);
  margin: 0 auto 12px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(5, 13, 23, 0.86);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.26);
  backdrop-filter: blur(16px);
}

.story-nav a {
  padding: 9px 10px;
  color: var(--muted-strong);
  font-size: 13px;
  box-shadow: none;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease;
}

.story-nav a.is-active {
  border-color: rgba(143, 216, 255, 0.35);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.section-head {
  display: grid;
  gap: 14px;
  max-width: 720px;
  margin-bottom: 28px;
}

.section-head h2,
.page-hero h1,
.cta-band h2 {
  font-size: 50px;
}

.card-grid,
.capability-grid,
.process-grid,
.use-case-grid,
.trust-grid,
.boundary-grid {
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.problem-grid .card,
.trust-grid .trust-card {
  grid-column: span 3;
}

.card,
.case-card,
.trust-card,
.step-card,
.page-block,
.contact-card,
.audit-card {
  padding: 20px;
}

.card h3,
.case-card h3,
.trust-card h3,
.step-head h3,
.page-block h2,
.contact-card h2,
.audit-card h2 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.2;
}

.card-index {
  margin: 0 0 22px;
}

.capability-grid .capability {
  grid-column: span 4;
}

.step-card {
  grid-column: span 4;
  display: grid;
  gap: 16px;
}

.step-head {
  display: flex;
  gap: 12px;
  align-items: start;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(143, 216, 255, 0.24);
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  flex: none;
}

.mock-panel {
  min-height: 172px;
  display: grid;
  gap: 14px;
  align-content: start;
  padding-top: 4px;
  border-top: 1px solid var(--line);
}

.mini-graph,
.signal-list,
.scenario-columns {
  display: grid;
  gap: 8px;
}

.mini-graph {
  grid-template-columns: repeat(4, 1fr);
  align-items: end;
  min-height: 76px;
}

.mini-graph span,
.scenario-columns span {
  border: 1px solid rgba(143, 216, 255, 0.22);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(143, 216, 255, 0.72), rgba(104, 169, 255, 0.16));
}

.mini-graph span:nth-child(1) { height: 42px; }
.mini-graph span:nth-child(2) { height: 66px; }
.mini-graph span:nth-child(3) { height: 54px; }
.mini-graph span:nth-child(4) { height: 76px; }

.signal-list span {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-muted);
  color: var(--muted-strong);
  font-size: 14px;
}

.scenario-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.scenario-columns span {
  min-height: 76px;
  display: flex;
  align-items: end;
  justify-content: center;
  padding: 12px;
  color: #06111d;
  font-weight: 720;
}

.mock-caption,
.business-meaning {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.case-card {
  grid-column: span 6;
}

.case-row {
  margin: 10px 0 0;
}

.case-row strong {
  color: var(--ink);
}

.trust-section::before {
  position: absolute;
  inset: 24px 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(143, 216, 255, 0.28), transparent);
  content: "";
}

.trust-card {
  grid-column: span 3;
}

.final-cta {
  padding-top: 32px;
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 32px;
  background: rgba(3, 9, 16, 0.96);
  color: var(--ink);
}

.cta-band h2,
.cta-band .section-label {
  color: var(--ink);
}

.cta-band p {
  color: rgba(232, 238, 246, 0.78);
}

.cta-band .button-primary {
  background: linear-gradient(135deg, #d8f2ff, #8fd8ff);
  color: #06111d;
}

.cta-band .button-secondary {
  border-color: rgba(232, 238, 246, 0.22);
  background: transparent;
  color: var(--ink);
}

.cta-band > div {
  max-width: 680px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 0 40px;
}

.site-footer p {
  margin: 0;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
}

.page-main {
  padding-top: 32px;
}

.page-hero {
  display: grid;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
  padding: 80px 0 28px;
}

.page-hero p {
  font-size: 18px;
}

.page-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
}

.page-grid .page-block:first-child {
  min-height: 100%;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.boundary-grid .page-block {
  grid-column: span 6;
}

.page-cta {
  margin-top: 18px;
}

.contact-grid {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: start;
}

.audit-card {
  grid-column: span 7;
}

.contact-card {
  grid-column: span 5;
}

.audit-list {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding-left: 20px;
}

.contact-stack {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.contact-item {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-muted);
}

.contact-item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--ink);
}

.contact-item a {
  color: var(--accent-strong);
  font-weight: 720;
}

.js-enabled .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 600ms var(--curve), transform 600ms var(--curve);
}

.js-enabled .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 72px;
  }

  .hero h1 {
    font-size: 58px;
  }

  .section-head h2,
  .page-hero h1,
  .cta-band h2 {
    font-size: 42px;
  }

  .problem-grid .card,
  .trust-grid .trust-card {
    grid-column: span 6;
  }

  .capability-grid .capability,
  .step-card,
  .audit-card,
  .contact-card,
  .case-card {
    grid-column: span 12;
  }

  .page-grid,
  .cta-band {
    grid-template-columns: 1fr;
  }

  .cta-band {
    display: grid;
  }
}

@media (max-width: 760px) {
  :root {
    --content: min(100vw - 24px, 100%);
    --header-offset: 84px;
  }

  .site-header {
    top: 8px;
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 8px;
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

  .site-nav a {
    width: 100%;
  }

  .site-header.is-open .menu-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .site-header.is-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.is-open .menu-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .story-nav {
    top: 72px;
    overflow-x: auto;
    flex-wrap: nowrap;
  }

  .story-nav a {
    white-space: nowrap;
  }

  .section {
    padding-block: 44px;
  }

  .hero {
    gap: 36px;
    padding-top: 56px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .section-head h2,
  .page-hero h1,
  .cta-band h2 {
    font-size: 34px;
  }

  .lead,
  .page-hero p {
    font-size: 16px;
  }

  .stacked-panels,
  .scenario-columns {
    grid-template-columns: 1fr;
  }

  .problem-grid .card,
  .trust-grid .trust-card,
  .boundary-grid .page-block {
    grid-column: span 12;
  }

  .cta-band,
  .card,
  .case-card,
  .trust-card,
  .step-card,
  .page-block,
  .contact-card,
  .audit-card {
    padding: 18px;
  }

  .site-footer {
    flex-direction: column;
    align-items: start;
  }
}

@media (max-width: 440px) {
  .hero h1 {
    font-size: 36px;
  }

  .section-head h2,
  .page-hero h1,
  .cta-band h2 {
    font-size: 30px;
  }

  .hero-actions,
  .cta-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }

  .js-enabled .reveal {
    opacity: 1;
    transform: none;
  }
}