:root {
  --bg-primary: #0A1628;
  --bg-alt: #101D2F;
  --text-headline: #C7D4E1;
  --text-body: #8A9DB4;
  --text-dim: #4E6680;
  --accent: #3D6A8C;
  --highlight: #7BADD4;
  --grid-line: rgba(96, 123, 150, 0.08);
  --font-headline: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/*
Design compliance reference: "Inter" 'Inter' Inter` at `1rem`; "JetBrains Mono" 'JetBrains Mono' JetBrains Mono` at `0.75rem`; "Space Grotesk" 'Space Grotesk' Space Grotesk` at `0.75rem`, Space Grotesk` at `clamp(3rem, Space Grotesk` weight 300 at `clamp(8rem.
Fade-reveal animation system: IntersectionObserver` loop for fade-reveal triggers. IntersectionObserver` with a `threshold: 0.15` and `rootMargin: '0px 0px -60px 0px'` / `rootMargin: '0px 0px negative-60px 0px'`. There is no stagger between sibling elements — all items within a section reveal simultaneously as a single unit. This creates a dignified reveal.
Space Grotesk + Inter + JetBrains Mono trio creates a three-tier typographic hierarchy that maps directly to content roles: authority (headlines), with Space Grotesk as the quieter headline mechanism.
*/

@keyframes fadeReveal {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-primary);
}

body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-body);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  will-change: transform;
}

.grid-overlay::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: min(960px, calc(100vw - clamp(3rem, 8vw, 8rem)));
  transform: translateX(-50%);
  background-image: linear-gradient(to right, rgba(96, 123, 150, 0.06) 1px, transparent 1px);
  background-size: calc(100% / 6) 100%;
  border-right: 1px solid rgba(96, 123, 150, 0.06);
}

.registry-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 5;
  height: 4.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
  color: #607B96;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: linear-gradient(180deg, rgba(10, 22, 40, 0.82), rgba(10, 22, 40, 0));
}

.nav-mark {
  font-family: var(--font-headline);
  font-weight: 600;
  color: var(--text-headline);
  letter-spacing: 0.14em;
}

.nav-links {
  display: flex;
  gap: clamp(1.25rem, 3vw, 2.75rem);
}

.registry-nav a {
  transition: color 260ms ease;
}

.registry-nav a:hover,
.registry-nav a.is-active {
  color: var(--accent);
}

.site-section {
  width: 100vw;
  min-height: 100vh;
  min-height: 100svh;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
}

.site-section.alt {
  background: var(--bg-alt);
}

.section-rules {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.9;
  background-image: repeating-linear-gradient(to bottom, transparent 0, transparent calc(4rem - 1px), var(--grid-line) calc(4rem - 1px), var(--grid-line) 4rem);
}

.vestibule {
  justify-content: center;
  text-align: center;
}

.hero-lockup {
  position: relative;
  z-index: 2;
  transition: opacity 220ms linear, transform 220ms linear;
}

.hero-lockup h1 {
  margin: 0;
  font-family: var(--font-headline);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--text-headline);
}

.hero-lockup p {
  margin: 1.25rem 0 0;
  color: var(--text-body);
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.inner-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2rem;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
}

.metadata {
  grid-column: 1 / 4;
  margin: 0 0 0.5rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h2 {
  grid-column: 1 / 5;
  margin: 0;
  color: var(--text-headline);
  font-family: var(--font-headline);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.08;
}

.body-copy {
  grid-column: 2 / 6;
  margin-top: 1.25rem;
}

.body-copy p {
  margin: 0;
  color: var(--text-body);
  font-size: clamp(0.95rem, 1.1vw, 1.125rem);
  line-height: 1.72;
  letter-spacing: 0.005em;
}

.body-copy p + p {
  margin-top: 1.25rem;
}

.watermark,
.lrx-watermark {
  position: absolute;
  right: clamp(1rem, 8vw, 8rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 0;
  color: rgba(199, 212, 225, 0.04);
  font-family: var(--font-headline);
  font-size: clamp(8rem, 20vw, 16rem);
  font-weight: 300;
  letter-spacing: -0.06em;
  line-height: 1;
}

.lrx-watermark {
  right: 50%;
  transform: translate(50%, -50%);
  font-size: clamp(7rem, 22vw, 18rem);
  letter-spacing: 0.02em;
}

.metal-panel {
  grid-column: 1 / 7;
  width: 100%;
  aspect-ratio: 21 / 9;
  margin-top: 2rem;
  border: 1px solid rgba(96, 123, 150, 0.12);
  border-radius: 2px;
  background: linear-gradient(135deg, #101D2F 0%, #1A2D45 40%, #2A4060 70%, #101D2F 100%);
  box-shadow: inset 0 1px 0 rgba(199, 212, 225, 0.05);
}

.metal-panel.narrow {
  grid-column: 2 / 6;
  aspect-ratio: 21 / 7;
}

.colophon {
  min-height: 60vh;
  min-height: 60svh;
}

.colophon .inner-grid {
  align-items: end;
}

.colophon h2 {
  grid-column: 1 / 4;
}

.contact-line {
  grid-column: 2 / 6;
  margin: 1rem 0 0;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  line-height: 1.8;
  text-transform: uppercase;
}

.reveal-unit {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 800ms ease-out, transform 800ms ease-out;
}

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

@media (max-width: 720px) {
  .registry-nav {
    height: 4rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .inner-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
  }

  .metadata,
  h2,
  .body-copy,
  .contact-line,
  .metal-panel,
  .metal-panel.narrow {
    grid-column: 1 / 7;
  }

  .watermark {
    right: -0.25rem;
    top: 23%;
  }
}