:root {
  color-scheme: dark;
  --bg: #05070d;
  --bg-soft: #0c1220;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.13);
  --text: #f6f7fb;
  --muted: #aeb7c8;
  --line: rgba(255, 255, 255, 0.16);
  --cyan: #58e6ff;
  --blue: #6b7cff;
  --red: #ff4a5f;
  --gold: #ffd36c;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(88, 230, 255, 0.18), transparent 32rem),
    radial-gradient(circle at top right, rgba(255, 74, 95, 0.14), transparent 28rem),
    linear-gradient(180deg, #05070d 0%, #0a0d16 44%, #05070d 100%);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 3vw, 3rem);
  background: rgba(5, 7, 13, 0.72);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: linear-gradient(145deg, #fff, #9ca3b6 46%, #222b3c);
  color: #05070d;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.4rem;
}

.site-nav {
  display: flex;
  gap: clamp(0.7rem, 2vw, 1.4rem);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

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

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

.hero {
  padding: clamp(5rem, 9vw, 9rem) clamp(1rem, 3vw, 3rem) clamp(3rem, 7vw, 7rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
  gap: clamp(2rem, 4.5vw, 4.5rem);
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
}

.eyebrow,
.section-kicker {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 0.95;
  letter-spacing: -0.055em;
}

h1 {
  max-width: 10.5ch;
  font-size: clamp(4rem, 8.4vw, 7.8rem);
}

h2 {
  font-size: clamp(2.3rem, 6vw, 5rem);
}

h3 {
  font-size: 1.45rem;
  letter-spacing: -0.035em;
}

.hero-lede {
  max-width: 44rem;
  margin: 1.5rem 0 0;
  color: #d9dfec;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 850;
  text-decoration: none;
}

.button-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #02040a;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.08);
}

.hero-card {
  position: relative;
  margin: 0;
  padding: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04));
  box-shadow: var(--shadow);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -35% 20% auto -20%;
  height: 18rem;
  background: radial-gradient(circle, rgba(88, 230, 255, 0.28), transparent 70%);
}

.hero-card img {
  position: relative;
  width: 100%;
  border-radius: 1.2rem;
  background: white;
}

.hero-card figcaption {
  position: relative;
  margin-top: 0.8rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.stats-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 3rem) clamp(4rem, 8vw, 7rem);
  gap: 1rem;
}

.stats-panel article,
.feature-card,
.team-grid article,
.callout,
.timeline article,
.source-grid a,
.founder-note,
.definition-card,
.evidence-note-grid article {
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
}

.stats-panel article {
  padding: clamp(1.2rem, 3vw, 2rem);
  border-radius: 1.6rem;
}

.stats-panel strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
}

.stats-panel span {
  display: block;
  margin-top: 0.6rem;
  color: var(--muted);
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 3vw, 3rem);
}

.two-column,
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 5rem);
}

.prose p,
.section-heading p,
.feature-card p,
.callout p,
.site-footer p {
  color: var(--muted);
  font-size: 1.03rem;
}

.prose p:first-child {
  margin-top: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.definition-card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(1.5rem, 5vw, 3rem);
  border-radius: 2rem;
  background:
    radial-gradient(circle at top left, rgba(88, 230, 255, 0.14), transparent 24rem),
    var(--card);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.timeline article {
  min-height: 15rem;
  padding: 1.2rem;
  border-radius: 1.4rem;
  background:
    linear-gradient(180deg, rgba(88, 230, 255, 0.08), rgba(255, 255, 255, 0.04)),
    var(--card);
}

.timeline span {
  display: inline-flex;
  margin-bottom: 2.5rem;
  color: var(--cyan);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

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

.feature-card {
  min-height: 20rem;
  padding: 1.4rem;
  border-radius: 1.6rem;
}

.feature-card span {
  display: inline-flex;
  margin-bottom: 4rem;
  color: var(--gold);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.exhibit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.exhibit-card {
  position: relative;
  min-height: 16rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  background: #111827;
  cursor: zoom-in;
}

.exhibit-card-large {
  grid-column: span 2;
  grid-row: span 2;
}

.exhibit-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.5s ease;
}

.exhibit-card:hover img {
  transform: scale(1.04);
  filter: saturate(1.15);
}

.exhibit-card span {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 1rem;
  background: rgba(5, 7, 13, 0.72);
  backdrop-filter: blur(12px);
  font-weight: 850;
  text-align: left;
}

.callout {
  padding: clamp(1.5rem, 5vw, 3rem);
  border-radius: 2rem;
  background:
    linear-gradient(135deg, rgba(255, 74, 95, 0.16), rgba(88, 230, 255, 0.08)),
    var(--card);
}

.callout h2 {
  max-width: 13ch;
}

.founder-note {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(1.5rem, 5vw, 3rem);
  border-radius: 2rem;
  background:
    radial-gradient(circle at top right, rgba(255, 211, 108, 0.15), transparent 22rem),
    var(--card);
}

.evidence-note-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.evidence-note-grid article {
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: 1.6rem;
}

.evidence-note-grid ul {
  margin: 1.25rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.evidence-note-grid li + li {
  margin-top: 0.7rem;
}

.sources-section {
  max-width: 1240px;
}

.source-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.source-grid a {
  display: block;
  min-height: 11rem;
  padding: 1.2rem;
  border-radius: 1.4rem;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease;
}

.source-grid a:hover {
  transform: translateY(-3px);
  background: var(--card-strong);
}

.source-grid strong,
.source-grid span {
  display: block;
}

.source-grid strong {
  color: var(--text);
}

.source-grid span {
  margin-top: 0.6rem;
  color: var(--muted);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.team-grid article {
  min-height: 11rem;
  padding: 1.25rem;
  border-radius: 1.4rem;
}

.team-grid strong,
.team-grid span {
  display: block;
}

.team-grid strong {
  font-size: 1.2rem;
}

.team-grid span {
  margin-top: 0.5rem;
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem clamp(1rem, 3vw, 3rem);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--cyan);
  font-weight: 800;
  text-decoration: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 4rem 1rem 1rem;
  background: rgba(0, 0, 0, 0.88);
}

.lightbox[hidden] {
  display: none;
}

.lightbox img {
  max-width: min(96vw, 1200px);
  max-height: 86vh;
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.lightbox-close {
  position: fixed;
  top: 1rem;
  right: 1rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

@media (max-width: 1120px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-card {
    max-width: 34rem;
  }
}

@media (max-width: 900px) {
  .hero-grid,
  .two-column,
  .section-heading,
  .stats-panel,
  .feature-grid,
  .team-grid,
  .timeline,
  .source-grid,
  .founder-note,
  .definition-card,
  .evidence-note-grid {
    grid-template-columns: 1fr;
  }

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

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

  h1 {
    max-width: 9.5ch;
    font-size: clamp(3.8rem, 15vw, 6.8rem);
  }
}

@media (max-width: 560px) {
  .site-nav {
    flex-wrap: wrap;
  }

  .exhibit-grid {
    grid-template-columns: 1fr;
  }

  .exhibit-card-large {
    grid-column: auto;
    grid-row: auto;
  }

  .site-footer {
    flex-direction: column;
  }
}