:root {
  --bg: #09100f;
  --bg-deep: #060b0a;
  --surface: #0d1513;
  --text: #eeeae0;
  --text-soft: #c6c7c0;
  --muted: #909a94;
  --line: rgba(238, 234, 224, 0.14);
  --line-strong: rgba(238, 234, 224, 0.23);
  --accent: #8bb8ad;
  --accent-light: #b4d1ca;
  --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --font-body: "Aptos", "Segoe UI Variable Text", "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "Cascadia Code", Consolas, monospace;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 7rem;
  --container: 76rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --ease: cubic-bezier(.2, .65, .25, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  min-width: 20rem;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--bg-deep); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
svg { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
  text-wrap: balance;
}
p { color: var(--muted); }

:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 4px;
}

.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;
}

.skip-link {
  position: fixed;
  inset-block-start: 1rem;
  inset-inline-start: 1rem;
  z-index: 1000;
  padding: .75rem 1rem;
  background: var(--text);
  color: var(--bg-deep);
  transform: translateY(-180%);
  transition: transform 160ms ease-out;
}

.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - (2 * var(--gutter))), var(--container)); margin-inline: auto; }

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(6, 11, 10, .94);
  border-color: var(--line);
}

.nav-shell {
  min-height: 4.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: var(--text);
  font-size: 1.08rem;
  font-weight: 650;
  letter-spacing: -.015em;
}

.wordmark-mark {
  width: .55rem;
  height: .55rem;
  background: var(--accent);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.75rem);
}

.primary-nav > a:not(.button) {
  color: var(--text-soft);
  font-size: .84rem;
  transition: color 150ms ease;
}

.primary-nav > a:not(.button):hover,
.primary-nav > a[aria-current="true"] { color: var(--text); }

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .4rem;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  width: 1.15rem;
  height: 1px;
  background: currentColor;
  transition: transform 180ms ease;
}

.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  padding: .75rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: .86rem;
  font-weight: 650;
  cursor: pointer;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.button-primary { background: var(--text); border-color: var(--text); color: var(--bg-deep); }
.button-primary:hover { background: var(--accent-light); border-color: var(--accent-light); }
.button-secondary { background: transparent; border-color: var(--line-strong); color: var(--text); }
.button-secondary:hover { border-color: var(--text-soft); }
.button-small { min-height: 2.55rem; padding: .55rem .9rem; font-size: .8rem; }
.button-large { min-height: 3.5rem; padding: .9rem 1.35rem; }

.hero {
  min-height: 47rem;
  display: flex;
  align-items: center;
  padding-block: 10rem 7rem;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(115deg, #09100f 0%, #09100f 58%, #0b1512 100%);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(25rem, .72fr);
  gap: clamp(4rem, 9vw, 9rem);
  align-items: center;
}

.eyebrow,
.section-kicker {
  margin-bottom: var(--space-4);
  color: var(--accent-light);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .02em;
}

.eyebrow { display: flex; align-items: center; gap: .75rem; }
.eyebrow span { width: 1.5rem; height: 1px; background: var(--accent); }

.hero h1 {
  max-width: 13ch;
  margin-bottom: var(--space-4);
  font-size: clamp(3.25rem, 5.3vw, 5.3rem);
}

.hero h1 em { color: var(--text); font-style: normal; font-weight: 300; }
.hero-intro { max-width: 42rem; margin-bottom: var(--space-5); color: var(--text-soft); font-size: clamp(1rem, 1.4vw, 1.16rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.hero-principle { margin-block: var(--space-5) 0; color: var(--muted); font-size: .86rem; }

.verification-visual { padding-block: var(--space-3); }
.visual-label { margin-bottom: 0; color: var(--text-soft); font-size: .84rem; font-weight: 600; }
.system-map { width: 100%; margin-block: var(--space-3); }
.candidate circle { fill: var(--muted); }
.candidate-c circle { fill: var(--accent-light); }
.candidate text { fill: var(--muted); font-family: var(--font-body); font-size: 12px; }
.flow-lines path { stroke: var(--line-strong); stroke-width: 1; }
.flow-lines .active-flow { stroke: url(#flow); stroke-width: 1.5; stroke-dasharray: 8 8; animation: flow-dash 9s linear infinite; }
.verifier rect { fill: transparent; stroke: var(--line-strong); }
.verifier-kicker, .result-label { fill: var(--muted); font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em; }
.verifier-title, .result-title { fill: var(--text); font-family: var(--font-display); font-size: 22px; }
.verifier path { stroke: var(--line); }
.result-line { stroke: var(--accent); stroke-width: 1.5; }
.result-card path { stroke: var(--accent-light); stroke-width: 1.5; }
.result-meta { fill: var(--muted); font-family: var(--font-body); font-size: 9px; }
.visual-evidence { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding-top: var(--space-3); border-top: 1px solid var(--line); }
.visual-evidence div { padding-inline-end: var(--space-3); }
.visual-evidence dt { margin-bottom: .25rem; color: var(--muted); font-size: .7rem; }
.visual-evidence dd { margin: 0; color: var(--text-soft); font-size: .78rem; }

.section { padding-block: clamp(5.5rem, 9vw, 8.5rem); border-bottom: 1px solid var(--line); }
.section-grid { display: grid; grid-template-columns: 9rem minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); }
.section-index { padding-top: .25rem; }
.section-index span { display: block; color: var(--muted); font-size: .75rem; }
.section-index p { margin: .3rem 0 0; color: var(--text-soft); font-size: .82rem; }

.section-content h2,
.section-heading h2,
.why-copy h2,
.engagement-copy h2,
.company-copy h2 {
  max-width: 23ch;
  margin-bottom: var(--space-4);
  font-size: clamp(2.25rem, 4vw, 4rem);
}

.section-lede { max-width: 50rem; margin-bottom: var(--space-6); color: var(--text-soft); font-size: 1.08rem; }
.requirements-list { border-top: 1px solid var(--line-strong); }
.requirement { display: grid; grid-template-columns: 2.5rem minmax(13rem, .65fr) minmax(0, 1fr); gap: var(--space-4); align-items: baseline; padding-block: 1.2rem; border-bottom: 1px solid var(--line); }
.requirement > span { color: var(--muted); font-size: .72rem; font-variant-numeric: tabular-nums; }
.requirement strong { color: var(--text); font-size: 1rem; font-weight: 600; }
.requirement p { margin: 0; font-size: 1rem; }

.process-section { background: var(--bg-deep); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) 25rem; gap: var(--space-6); align-items: end; margin-bottom: var(--space-6); }
.section-heading > p { margin-bottom: var(--space-4); }
.process-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line-strong); }
.process-step { display: grid; grid-template-columns: 3rem minmax(0, 1fr) 5rem; gap: var(--space-4); align-items: start; padding-block: 1.6rem; border-bottom: 1px solid var(--line); }
.step-number { color: var(--muted); font-size: .72rem; font-variant-numeric: tabular-nums; }
.process-step h3 { margin-bottom: .45rem; font-size: 1.35rem; letter-spacing: -.02em; }
.process-step p { max-width: 44rem; margin: 0; font-size: 1rem; }
.step-status { color: var(--muted); font-size: .72rem; text-align: end; }

.applications-grid { border-top: 1px solid var(--line-strong); }
.application-card {
  display: grid;
  grid-template-columns: minmax(13rem, .5fr) minmax(0, 1fr);
  gap: var(--space-4);
  align-items: baseline;
  min-height: 0;
  padding-block: 1.7rem;
  border-bottom: 1px solid var(--line);
}
.application-card h3 { margin: 0; font-size: 1.38rem; letter-spacing: -.02em; }
.application-card p { max-width: 42rem; margin: 0; font-size: 1rem; }

.why-section { background: var(--surface); }
.why-layout { display: grid; grid-template-columns: minmax(18rem, .74fr) minmax(0, 1fr); gap: clamp(4rem, 9vw, 9rem); align-items: start; }
.why-copy p:last-child { max-width: 30rem; }
.principles-grid { display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--space-6); border-top: 1px solid var(--line-strong); }
.principle { min-height: 10rem; padding-block: var(--space-4); border-bottom: 1px solid var(--line); }
.principle h3 { margin-block: 0 .5rem; font-size: 1.12rem; letter-spacing: -.01em; }
.principle p { margin: 0; font-size: 1rem; }

.engagement-section { background: var(--bg-deep); }
.engagement-layout { display: grid; grid-template-columns: minmax(0, .9fr) minmax(21rem, .65fr); gap: clamp(4rem, 9vw, 9rem); align-items: center; }
.engagement-copy > p:not(.section-kicker) { max-width: 42rem; color: var(--text-soft); }
.text-link { display: inline-flex; gap: .6rem; margin-top: var(--space-3); padding-bottom: .2rem; border-bottom: 1px solid var(--accent); color: var(--text); font-size: .9rem; }
.engagement-callout { margin: 0; padding-inline-start: var(--space-5); border-inline-start: 1px solid var(--line-strong); }
.engagement-callout p { margin: 0 0 var(--space-4); color: var(--text); font-size: clamp(1.5rem, 2.5vw, 2.15rem); line-height: 1.28; }
.engagement-callout footer { color: var(--muted); font-size: .8rem; }

.company-layout { display: grid; grid-template-columns: minmax(14rem, .45fr) minmax(0, 1fr); gap: clamp(4rem, 11vw, 11rem); align-items: start; }
.company-identity { min-height: 12rem; display: flex; flex-direction: column; justify-content: flex-end; gap: .25rem; padding-bottom: var(--space-4); border-bottom: 1px solid var(--line-strong); }
.company-identity p { margin: 0 0 var(--space-4); color: var(--text); font-size: 1rem; font-weight: 650; }
.company-identity span { color: var(--muted); font-size: .76rem; }
.company-copy > p:not(.section-kicker) { max-width: 47rem; color: var(--text-soft); }
.company-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin: var(--space-6) 0 0; padding-top: var(--space-4); border-top: 1px solid var(--line-strong); }
.company-facts div { padding-inline-end: var(--space-3); }
.company-facts dt { margin-bottom: .35rem; color: var(--muted); font-size: .74rem; }
.company-facts dd { margin: 0; color: var(--text); font-size: .9rem; }

.final-cta { padding-block: clamp(7rem, 13vw, 11rem); background: var(--text); color: var(--bg-deep); }
.final-cta-inner { display: grid; grid-template-columns: minmax(0, 1fr) 25rem; column-gap: var(--space-7); align-items: end; }
.final-cta .section-kicker { grid-column: 1 / -1; color: #4e625d; }
.final-cta h2 { max-width: 12ch; margin: 0; color: var(--bg-deep); font-size: clamp(3rem, 6vw, 6rem); }
.final-cta p:not(.section-kicker) { margin-bottom: var(--space-5); color: #3f4d49; font-size: 1.06rem; }
.final-cta .button-primary { justify-self: start; background: var(--bg-deep); border-color: var(--bg-deep); color: var(--text); }
.final-cta .button-primary:hover { background: #26312e; border-color: #26312e; }

.site-footer { padding-block: var(--space-7) var(--space-5); background: var(--bg-deep); border-top: 1px solid var(--line); }
.footer-main { display: grid; grid-template-columns: 1fr auto auto; gap: clamp(2rem, 8vw, 8rem); padding-bottom: var(--space-7); }
.footer-wordmark { margin-bottom: var(--space-3); font-size: 1.15rem; }
.footer-main p { font-size: .82rem; }
.footer-meta, .footer-links { display: flex; flex-direction: column; gap: .65rem; font-size: .82rem; }
.footer-meta span { color: var(--muted); }
.footer-meta a, .footer-links a, .footer-links button { color: var(--text-soft); }
.footer-links button { padding: 0; border: 0; background: none; text-align: start; cursor: pointer; }
.footer-meta a:hover, .footer-links a:hover, .footer-links button:hover { color: var(--text); }
.text-link:visited, .footer-meta a:visited { color: var(--accent-light); }
.footer-bottom { display: flex; justify-content: space-between; gap: var(--space-5); padding-top: var(--space-4); border-top: 1px solid var(--line); color: var(--muted); font-size: .72rem; }

.privacy-dialog { width: min(34rem, calc(100% - 2rem)); padding: var(--space-5); border: 1px solid var(--line-strong); background: var(--surface); color: var(--text); box-shadow: 0 2rem 7rem rgba(0,0,0,.55); }
.privacy-dialog::backdrop { background: rgba(1, 5, 4, .8); }
.privacy-dialog h2 { margin: 0; font-size: 1.75rem; }
.privacy-dialog p { margin-block: var(--space-4) var(--space-5); }
.dialog-header { display: flex; align-items: center; justify-content: space-between; }
.dialog-header button { width: 2.75rem; height: 2.75rem; border: 1px solid var(--line-strong); background: transparent; color: var(--text); font-size: 1.35rem; cursor: pointer; }

.reveal { opacity: 1; transform: none; }
.reveal-ready .reveal { opacity: 0; transform: translateY(.75rem); transition: opacity 500ms ease-out, transform 500ms var(--ease); }
.reveal-ready .reveal.is-visible { opacity: 1; transform: none; }

@keyframes flow-dash { to { stroke-dashoffset: -64; } }

@media (max-width: 1050px) {
  .primary-nav { gap: 1rem; }
  .primary-nav > a:not(.button) { font-size: .78rem; }
  .hero-layout { grid-template-columns: minmax(0, 1fr) 25rem; gap: var(--space-6); }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; z-index: 2; }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(1) { transform: translateY(.2rem) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(2) { transform: translateY(-.2rem) rotate(-45deg); }
  .primary-nav { position: fixed; inset-block-start: 0; inset-inline-end: 0; width: min(23rem, 88vw); height: 100dvh; flex-direction: column; align-items: stretch; justify-content: center; gap: 0; padding: 6rem 2rem 2rem; background: var(--bg-deep); border-inline-start: 1px solid var(--line); transform: translateX(102%); visibility: hidden; transition: transform 220ms var(--ease), visibility 220ms; }
  .primary-nav.is-open { transform: translateX(0); visibility: visible; }
  [dir="rtl"] .primary-nav { transform: translateX(-102%); }
  [dir="rtl"] .primary-nav.is-open { transform: translateX(0); }
  .primary-nav > a:not(.button) { padding-block: 1rem; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .nav-cta { margin-top: var(--space-5); }
  body.nav-open { overflow: hidden; }
  .hero { padding-block: 9rem 6rem; }
  .hero-layout, .section-heading, .why-layout, .engagement-layout, .company-layout, .final-cta-inner { grid-template-columns: 1fr; }
  .verification-visual { width: min(100%, 38rem); }
  .final-cta .section-kicker { grid-column: auto; }
  .final-cta h2 { margin-bottom: var(--space-4); }
  .final-cta p:not(.section-kicker) { max-width: 35rem; }
  .company-identity { min-height: 11rem; }
}

@media (max-width: 680px) {
  :root { --gutter: 1.15rem; }
  .hero { min-height: auto; }
  .hero h1 { font-size: clamp(3rem, 13vw, 4.25rem); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .section { padding-block: 5rem; }
  .section-grid { grid-template-columns: 1fr; gap: var(--space-5); }
  .section-index { display: flex; gap: .75rem; align-items: baseline; }
  .section-index p { margin: 0; }
  .section-content h2, .section-heading h2, .why-copy h2, .engagement-copy h2, .company-copy h2 { font-size: clamp(2.15rem, 10vw, 3.2rem); }
  .requirement { grid-template-columns: 2rem 1fr; gap: var(--space-3); }
  .requirement p { grid-column: 2; }
  .application-card { grid-template-columns: 1fr; gap: .5rem; }
  .process-step { grid-template-columns: 2rem 1fr; gap: var(--space-3); }
  .step-status { display: none; }
  .principles-grid { grid-template-columns: 1fr; }
  .engagement-callout { padding-inline-start: var(--space-4); }
  .company-facts { grid-template-columns: 1fr; gap: var(--space-3); }
  .footer-main { grid-template-columns: 1fr; gap: var(--space-5); padding-bottom: var(--space-6); }
  .footer-meta a, .footer-links a, .footer-links button { min-height: 2.75rem; display: flex; align-items: center; }
  .footer-bottom { flex-direction: column; gap: .5rem; }
  .visual-evidence { gap: .5rem; }
  .visual-evidence div { padding-inline-end: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal-ready .reveal { opacity: 1; transform: none; }
}

@media (forced-colors: active) {
  .button, .verification-visual, .privacy-dialog { border: 1px solid CanvasText; }
}