:root {
  color-scheme: dark;
  --black: #080808;
  --ink: #151515;
  --graphite: #1d1f20;
  --panel: #242424;
  --panel-strong: #2f2f2f;
  --line: rgba(255, 255, 255, 0.14);
  --line-strong: rgba(255, 255, 255, 0.24);
  --text: #f2f2f2;
  --muted: #b8b8b8;
  --quiet: #8c8c8c;
  --orange: #ef7d00;
  --gold: #f2a11d;
  --gold-soft: rgba(242, 161, 29, 0.14);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: Inter, Roboto, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--black);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(239, 125, 0, 0.08), transparent 28rem),
    radial-gradient(circle at 80% 8%, rgba(242, 161, 29, 0.11), transparent 28rem),
    var(--black);
}

a {
  color: inherit;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 8, 8, 0.88);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(var(--max), calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  min-width: 170px;
}

.brand-logo {
  display: block;
  width: min(230px, 52vw);
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
}

main {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100svh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: clamp(44px, 8vw, 112px);
  align-items: center;
  padding: 74px 0 86px;
  border-bottom: 1px solid var(--line);
}

.hero-content {
  max-width: 650px;
}

.eyebrow,
.panel-label {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--text);
  letter-spacing: 0;
}

h1 {
  max-width: 650px;
  font-size: clamp(2.45rem, 5.05vw, 5rem);
  line-height: 0.98;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 3.2rem);
  line-height: 1.03;
}

h3 {
  font-size: 1.08rem;
  line-height: 1.26;
}

p {
  max-width: 760px;
  line-height: 1.72;
}

.lead {
  margin: 28px 0 0;
  color: #d8d8d8;
  font-size: clamp(1.08rem, 2vw, 1.34rem);
}

.scope-note {
  margin-top: 30px;
  color: var(--quiet);
  font-size: 0.95rem;
}

.actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.button-primary {
  color: #120b03;
  border-color: var(--gold);
  background: linear-gradient(135deg, var(--gold), var(--orange));
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.button:hover {
  border-color: var(--gold);
}

.hero-visual,
.diagram-card {
  margin: 0;
}

.hero-visual {
  justify-self: end;
  width: min(100%, 520px);
  transform: translateX(18px);
}

.hero-visual img,
.diagram-card img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #111;
}

.hero-visual figcaption,
.diagram-card figcaption {
  margin-top: 12px;
  color: var(--quiet);
  font-size: 0.9rem;
  line-height: 1.55;
}

.section {
  padding: clamp(64px, 9vw, 112px) 0;
  border-bottom: 1px solid var(--line);
}

.section.compact {
  padding-top: 74px;
  padding-bottom: 76px;
}

.band {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  padding-left: max(16px, calc((100vw - var(--max)) / 2));
  padding-right: max(16px, calc((100vw - var(--max)) / 2));
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018));
}

.section-grid,
.split,
.visual-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 6vw, 76px);
  align-items: start;
}

.section-heading {
  max-width: 870px;
  margin-bottom: 36px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
}

.text-stack p {
  margin-top: 0;
  color: var(--muted);
}

.principle-grid,
.regulatory-grid,
.architecture-grid,
.capability-list,
.monitoring-grid,
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.principle-card,
.regulatory-grid article,
.architecture-grid article,
.capability-list article,
.monitoring-grid article,
.timeline-grid article {
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.principle-card:hover,
.regulatory-grid article:hover,
.architecture-grid article:hover,
.capability-list article:hover,
.monitoring-grid article:hover,
.timeline-grid article:hover {
  border-color: rgba(242, 161, 29, 0.45);
}

.card-index {
  display: block;
  margin-bottom: 28px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
}

.principle-card p,
.regulatory-grid p,
.architecture-grid p,
.capability-list p,
.monitoring-grid p,
.timeline-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

.visual-copy {
  align-self: center;
}

.timeline-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.timeline-grid article {
  min-height: 216px;
}

.timeline-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 28px;
  border: 1px solid rgba(242, 161, 29, 0.5);
  border-radius: 50%;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 900;
  background: rgba(242, 161, 29, 0.09);
}

.check-list {
  display: grid;
  gap: 13px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}

.check-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  position: relative;
  padding-left: 0;
  line-height: 1.58;
}

.check-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  border: 1px solid rgba(242, 161, 29, 0.72);
  border-radius: 50%;
  transform: translateY(0.08em);
  background: rgba(242, 161, 29, 0.12);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-cloud span {
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #dedede;
  background: rgba(255, 255, 255, 0.045);
  font-size: 0.95rem;
}

.contact-section {
  margin: clamp(64px, 9vw, 112px) 0;
  padding: clamp(32px, 6vw, 54px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  border: 1px solid rgba(242, 161, 29, 0.34);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(239, 125, 0, 0.16), rgba(255, 255, 255, 0.04)),
    var(--ink);
}

.contact-section p:not(.eyebrow) {
  color: var(--muted);
}

.contact-actions {
  display: grid;
  justify-items: end;
  gap: 12px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #050505;
  color: #d7d7d7;
}

.footer-inner {
  width: min(var(--max), calc(100% - 32px));
  min-height: 108px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  color: #d7d7d7;
  text-decoration: none;
}

.footer-brand img {
  width: min(300px, 64vw);
  height: auto;
}

.legal-page {
  padding: 64px 0 88px;
}

.legal-page h1 {
  font-size: clamp(2.1rem, 4vw, 3.7rem);
}

.legal-section {
  max-width: 820px;
  padding-top: 40px;
}

.legal-section h2 {
  margin-bottom: 18px;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

.legal-section address {
  color: var(--muted);
  font-style: normal;
  line-height: 1.7;
}

.legal-section p {
  color: var(--muted);
}

@media (max-width: 1020px) {
  .hero,
  .section-grid,
  .split,
  .visual-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    justify-self: stretch;
    width: 100%;
    transform: none;
  }

  .principle-grid,
  .regulatory-grid,
  .architecture-grid,
  .capability-list,
  .monitoring-grid,
  .timeline-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .nav {
    display: block;
    padding: 16px 0;
  }

  .nav-links {
    justify-content: flex-start;
    margin-top: 14px;
    gap: 12px;
  }

  .hero {
    padding-top: 52px;
  }

  .principle-grid,
  .regulatory-grid,
  .architecture-grid,
  .capability-list,
  .monitoring-grid,
  .timeline-grid,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .contact-actions {
    justify-items: start;
  }

  .principle-card,
  .regulatory-grid article,
  .architecture-grid article,
  .capability-list article,
  .monitoring-grid article,
  .timeline-grid article {
    min-height: auto;
  }

  .footer-inner {
    display: block;
    padding: 28px 0;
  }

  .footer-links {
    margin-top: 18px;
  }

  .footer-brand {
    align-items: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}