:root {
  --bg: #07121b;
  --bg-soft: #0e1b27;
  --surface: rgba(16, 30, 43, 0.78);
  --surface-strong: rgba(20, 36, 52, 0.96);
  --surface-light: rgba(242, 248, 255, 0.05);
  --text: #e8f0f7;
  --text-soft: rgba(232, 240, 247, 0.74);
  --text-faint: rgba(232, 240, 247, 0.5);
  --line: rgba(232, 240, 247, 0.1);
  --line-strong: rgba(232, 240, 247, 0.18);
  --cyan: #5dd9ff;
  --mint: #87ffc1;
  --amber: #ffb67b;
  --coral: #ff8f7a;
  --shadow-lg: 0 28px 80px rgba(0, 0, 0, 0.34);
  --shadow-md: 0 18px 48px rgba(0, 0, 0, 0.24);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --max-width: 1240px;
}

html {
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(93, 217, 255, 0.12), transparent 18%),
    radial-gradient(circle at 88% 14%, rgba(255, 182, 123, 0.1), transparent 18%),
    radial-gradient(circle at 70% 74%, rgba(135, 255, 193, 0.08), transparent 20%),
    linear-gradient(180deg, #07111a 0%, #091520 28%, #07111a 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.6;
}

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

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

button {
  font: inherit;
}

.page-glow {
  position: fixed;
  left: var(--mouse-x, 50%);
  top: var(--mouse-y, 20%);
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(93, 217, 255, 0.16), transparent 64%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: -1;
  filter: blur(10px);
  opacity: 0.9;
}

.top-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  height: 4px;
  background: rgba(255, 255, 255, 0.06);
}

.top-progress span {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan), var(--mint), var(--amber), var(--coral));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 18px auto 0;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 21, 31, 0.8);
  backdrop-filter: blur(18px);
  transition:
    box-shadow 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.site-header.is-scrolled {
  transform: translateY(4px);
  border-color: var(--line-strong);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.24);
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: linear-gradient(135deg, #123752, #0d2436);
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  max-width: 460px;
}

.brand-copy strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.96rem;
  line-height: 1.08;
}

.brand-copy small {
  color: rgba(232, 240, 247, 0.64);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.64rem;
  letter-spacing: 0.03em;
  line-height: 1.45;
  text-transform: none;
  overflow-wrap: anywhere;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--text-soft);
  transition:
    color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

main {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding-bottom: 84px;
}

.section {
  padding: 84px 0;
}

.eyebrow,
.detail-label,
.detail-kicker,
.sidecard-label,
.chip,
.signal-ribbon span {
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 0.8rem;
  font-weight: 600;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.98fr);
  gap: 40px;
  align-items: center;
  min-height: calc(100vh - 120px);
  padding-top: 38px;
}

.hero-copy {
  display: grid;
  gap: 0;
}

h1 {
  max-width: 11ch;
  font-size: clamp(3rem, 5.2vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.hero-lead {
  max-width: 60ch;
  margin: 22px 0 0;
  color: var(--text-soft);
  line-height: 1.78;
  font-size: 1.02rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, #173752, #0f2335);
  color: var(--text);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.24);
}

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

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.metric-card,
.sidecard,
.timeline-detail,
.frontier-panel,
.library-card,
.library-detail,
.watch-card,
.future-card {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
}

.metric-card {
  padding: 18px;
  border-radius: var(--radius-md);
}

.metric-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--cyan);
  font-family: "Space Grotesk", sans-serif;
  font-size: 2rem;
  font-weight: 700;
}

.metric-card span {
  color: var(--text-soft);
  line-height: 1.65;
  font-size: 0.92rem;
}

.hero-visual {
  display: grid;
  gap: 18px;
}

.hero-visual > img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.hero-sidecards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.sidecard {
  padding: 20px;
  border-radius: var(--radius-lg);
}

.sidecard-label {
  margin: 0 0 8px;
  color: var(--mint);
  font-size: 0.74rem;
}

.sidecard h2 {
  font-size: 1.34rem;
  line-height: 1.1;
}

.sidecard p {
  margin: 12px 0 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.ribbon-section {
  padding-top: 28px;
  padding-bottom: 8px;
}

.signal-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.signal-ribbon span {
  color: var(--text-faint);
  font-size: 0.76rem;
}

.signal-ribbon span::after {
  content: " /";
  margin-left: 12px;
  color: rgba(255, 255, 255, 0.18);
}

.signal-ribbon span:last-child::after {
  content: "";
  margin-left: 0;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 30px;
}

.section-heading h2 {
  font-size: clamp(2.3rem, 4.2vw, 3.8rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.section-heading p {
  margin: 16px 0 0;
  color: var(--text-soft);
  line-height: 1.78;
}

.section-heading-inverse h2,
.section-heading-inverse p {
  color: var(--text);
}

.history-shell {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
}

.timeline-nav {
  display: grid;
  gap: 10px;
}

.timeline-button,
.frontier-tab {
  text-align: left;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.timeline-button:hover,
.frontier-tab:hover,
.timeline-button.is-active,
.frontier-tab.is-active {
  transform: translateX(3px);
  border-color: rgba(93, 217, 255, 0.32);
  background: rgba(93, 217, 255, 0.08);
}

.timeline-button strong,
.frontier-tab strong {
  display: block;
  margin-bottom: 6px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.02rem;
}

.timeline-button span,
.frontier-tab span {
  color: var(--text-faint);
  font-size: 0.88rem;
}

.timeline-detail,
.frontier-panel {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 24px;
  padding: 24px;
  border-radius: var(--radius-xl);
}

.timeline-art img,
.frontier-media img {
  width: 100%;
  border-radius: 22px;
}

.detail-kicker {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 0.78rem;
}

.timeline-copy h3,
.frontier-copy h3,
.library-detail h3 {
  font-size: 2rem;
  line-height: 1.04;
}

.timeline-summary {
  margin: 14px 0 0;
  color: var(--text-soft);
  line-height: 1.78;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.detail-label {
  margin: 0 0 8px;
  color: var(--mint);
  font-size: 0.72rem;
}

.detail-grid p:last-child {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.72;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-soft);
  font-size: 0.76rem;
}

.link-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.link-list a,
.watch-copy a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.link-list a::after,
.watch-copy a::after {
  content: "->";
  font-size: 0.9rem;
}

.link-list a:hover,
.watch-copy a:hover {
  transform: translateX(2px);
  border-color: rgba(93, 217, 255, 0.3);
}

.frontier-shell {
  display: grid;
  gap: 18px;
}

.frontier-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.library-section {
  border: 1px solid var(--line);
  border-radius: 34px;
  padding-left: 26px;
  padding-right: 26px;
  background:
    radial-gradient(circle at 82% 14%, rgba(93, 217, 255, 0.1), transparent 18%),
    linear-gradient(180deg, #0a1621 0%, #0c1b28 100%);
}

.library-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-pill {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.filter-pill:hover,
.filter-pill.is-active {
  transform: translateY(-1px);
  border-color: rgba(93, 217, 255, 0.32);
  background: rgba(93, 217, 255, 0.08);
  color: var(--text);
}

.library-meta {
  margin-top: 14px;
  color: var(--text-faint);
}

.library-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) 340px;
  gap: 22px;
  margin-top: 22px;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.library-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.08), transparent 20%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.library-card:hover,
.library-card.is-selected {
  transform: translateY(-3px);
  border-color: rgba(93, 217, 255, 0.32);
  background:
    radial-gradient(circle at top right, rgba(93, 217, 255, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
}

.library-poster {
  min-height: 128px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 82% 20%, var(--accent), transparent 26%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
}

.library-poster small {
  display: block;
  color: var(--text-faint);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.library-poster strong {
  display: block;
  max-width: 12ch;
  margin-top: 28px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.55rem;
  line-height: 0.95;
}

.library-card h3 {
  font-size: 1.06rem;
  line-height: 1.14;
}

.library-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.65;
  font-size: 0.92rem;
}

.resource-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-faint);
  font-size: 0.8rem;
}

.library-detail {
  position: sticky;
  top: 108px;
  align-self: start;
  padding: 24px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(93, 217, 255, 0.1), transparent 22%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
}

.watch-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.watch-card {
  overflow: hidden;
  border-radius: 24px;
  transition:
    transform 180ms ease,
    border-color 180ms ease;
}

.watch-card:hover {
  transform: translateY(-4px);
  border-color: rgba(93, 217, 255, 0.28);
}

.watch-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(93, 217, 255, 0.24), transparent 26%),
    linear-gradient(135deg, #173147, #0f2433);
}

.watch-media::after {
  content: "PLAY";
  position: absolute;
  right: 16px;
  bottom: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(7, 18, 27, 0.82);
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.watch-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.94;
}

.watch-copy {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.watch-copy p:first-child {
  margin: 0;
  color: var(--mint);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.watch-copy h3 {
  font-size: 1.18rem;
  line-height: 1.14;
}

.watch-copy p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.future-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.future-card {
  display: grid;
  gap: 18px;
  padding: 22px;
  border-radius: 26px;
}

.future-card img {
  width: 100%;
  border-radius: 20px;
}

.future-card h3 {
  font-size: 1.42rem;
  line-height: 1.14;
}

.future-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.72;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 0 0 32px;
  color: var(--text-faint);
  font-size: 0.9rem;
}

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

  .page-glow,
  .site-header,
  .button,
  .timeline-button,
  .frontier-tab,
  .library-card,
  .watch-card,
  .filter-pill,
  .link-list a,
  .watch-copy a {
    transition: none;
  }
}

@media (max-width: 1150px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .history-shell,
  .timeline-detail,
  .frontier-panel,
  .library-layout {
    grid-template-columns: 1fr;
  }

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

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

  .library-detail {
    position: static;
  }
}

@media (max-width: 900px) {
  .site-nav {
    display: none;
  }

  .hero-metrics,
  .hero-sidecards,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .watch-grid,
  .future-grid,
  .library-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 64px 0;
  }

  main,
  .site-header,
  .site-footer {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .site-header {
    margin-top: 12px;
    padding: 12px 14px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
  }

  .brand-copy {
    max-width: 260px;
  }

  h1 {
    max-width: none;
    font-size: clamp(2.5rem, 11vw, 3.8rem);
  }

  .section-heading h2,
  .timeline-copy h3,
  .frontier-copy h3,
  .library-detail h3 {
    font-size: clamp(1.9rem, 9vw, 3rem);
  }

  .library-section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .site-footer {
    flex-direction: column;
    padding-bottom: 24px;
  }
}