:root {
  color-scheme: dark;
  --void: #050608;
  --black: #090b0d;
  --graphene: #11171a;
  --graphene-2: #172126;
  --titanium: #aeb9bc;
  --pearl: #f1eee4;
  --muted: #98a4a6;
  --gold: #c8a35b;
  --gold-soft: #80652f;
  --amber: #f08c2d;
  --cyan: #42d5e8;
  --cyan-dim: #174c56;
  --danger: #e56f55;
  --line: rgba(241, 238, 228, 0.14);
  --line-strong: rgba(200, 163, 91, 0.42);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.42);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--pearl);
  background:
    linear-gradient(90deg, rgba(66, 213, 232, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, rgba(200, 163, 91, 0.03) 1px, transparent 1px),
    var(--void);
  background-size: 76px 76px, 76px 76px, auto;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(180deg, rgba(5, 6, 8, 0.2), rgba(5, 6, 8, 0.96)),
    radial-gradient(ellipse at top, rgba(66, 213, 232, 0.09), transparent 44%),
    linear-gradient(135deg, rgba(200, 163, 91, 0.08), transparent 34%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.23;
  background-image: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0, rgba(255, 255, 255, 0.04) 1px, transparent 1px, transparent 5px);
  mix-blend-mode: screen;
}

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

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 30;
  padding: 10px 14px;
  color: var(--void);
  background: var(--pearl);
  border-radius: 6px;
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 70px;
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 6, 8, 0.82);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 214px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: var(--gold);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(200, 163, 91, 0.18), rgba(66, 213, 232, 0.08));
  font-family: Georgia, serif;
  font-size: 26px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 14px;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
}

.primary-nav a {
  padding: 10px 12px;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--pearl);
  border-color: rgba(66, 213, 232, 0.24);
  background: rgba(66, 213, 232, 0.06);
  outline: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  margin: auto;
  content: "";
  background: var(--pearl);
}

.nav-toggle span::before {
  transform: translateY(-7px);
}

.nav-toggle span::after {
  transform: translateY(5px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 390px);
  align-items: end;
  gap: 34px;
  min-height: 78svh;
  padding: 88px max(28px, calc((100vw - var(--max)) / 2)) 46px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-media,
.hero-shade,
.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.9) contrast(1.08);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(5, 6, 8, 0.9), rgba(5, 6, 8, 0.48) 46%, rgba(5, 6, 8, 0.72)),
    linear-gradient(180deg, rgba(5, 6, 8, 0.35), rgba(5, 6, 8, 0.86));
}

.hero-grid {
  opacity: 0.42;
  background:
    linear-gradient(90deg, rgba(66, 213, 232, 0.18) 1px, transparent 1px),
    linear-gradient(180deg, rgba(200, 163, 91, 0.12) 1px, transparent 1px);
  background-size: 120px 120px;
  mask-image: linear-gradient(90deg, black, transparent 72%);
}

.hero-content,
.access-console {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 820px;
}

.system-label,
.kicker,
.panel-code {
  margin: 0 0 12px;
  color: var(--cyan);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 900px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 64px;
  line-height: 0.98;
  font-weight: 600;
  text-wrap: balance;
}

.hero-subtitle {
  margin: 20px 0 0;
  color: var(--gold);
  font-size: 24px;
}

.hero-copy {
  max-width: 650px;
  margin: 18px 0 0;
  color: rgba(241, 238, 228, 0.82);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.button-primary {
  color: #090b0d;
  background: linear-gradient(135deg, var(--gold), #f1d18a);
  box-shadow: 0 16px 30px rgba(200, 163, 91, 0.18);
}

.button-secondary {
  color: var(--pearl);
  border-color: rgba(66, 213, 232, 0.34);
  background: rgba(8, 18, 22, 0.58);
}

.access-console {
  align-self: end;
  padding: 18px;
  border: 1px solid rgba(66, 213, 232, 0.28);
  border-radius: 8px;
  background: rgba(5, 9, 11, 0.74);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.console-header,
.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.console-header {
  margin-bottom: 18px;
  color: var(--muted);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.console-header strong {
  color: var(--cyan);
}

.access-console label {
  display: block;
  margin-bottom: 8px;
  color: var(--pearl);
  font-size: 13px;
}

.access-console input {
  width: 100%;
  min-height: 44px;
  color: var(--pearl);
  border: 1px solid rgba(241, 238, 228, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  padding: 0 12px;
}

.access-console input:focus {
  border-color: var(--cyan);
  outline: none;
  box-shadow: 0 0 0 3px rgba(66, 213, 232, 0.12);
}

#searchStatus {
  min-height: 42px;
  margin: 12px 0 18px;
  color: var(--muted);
  font-size: 13px;
}

.console-metrics {
  display: grid;
  gap: 10px;
  margin: 0;
}

.console-metrics div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.console-metrics dt {
  color: var(--muted);
  font-size: 12px;
}

.console-metrics dd {
  margin: 0;
  color: var(--pearl);
  font-size: 13px;
  text-align: right;
}

.signal-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 14, 16, 0.86);
}

.signal-strip span {
  padding: 6px 10px;
  color: var(--muted);
  border: 1px solid rgba(200, 163, 91, 0.18);
  border-radius: 999px;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.content-section {
  padding: 92px max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin: 0;
  color: var(--pearl);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 42px;
  line-height: 1.06;
}

.section-heading p:last-child {
  margin: 16px 0 0;
  color: rgba(241, 238, 228, 0.74);
  font-size: 17px;
}

.subsection-heading {
  margin: 38px 0 18px;
  max-width: 680px;
}

.subsection-heading h3 {
  margin: 0;
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  line-height: 1.18;
}

.subsection-heading p {
  margin: 8px 0 0;
  color: var(--muted);
}

.universe-grid,
.arkon-grid,
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-panel,
.arkon-grid article,
.about-grid article {
  min-height: 230px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(23, 33, 38, 0.74), rgba(8, 10, 12, 0.8));
}

.feature-panel h3,
.arkon-grid h3,
.about-grid h3,
.archive-card h3,
.timeline-item h3 {
  margin: 0;
  color: var(--pearl);
  line-height: 1.18;
}

.feature-panel p,
.arkon-grid p,
.about-grid p,
.archive-card p,
.timeline-item p {
  color: rgba(241, 238, 228, 0.72);
}

.timeline {
  position: relative;
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.timeline::before {
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 25px;
  width: 1px;
  content: "";
  background: linear-gradient(var(--gold), var(--cyan));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(10, 14, 16, 0.72);
}

.timeline-index {
  position: relative;
  z-index: 1;
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  color: var(--void);
  border-radius: 8px;
  background: var(--gold);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-weight: 700;
}

.card-grid,
.episode-list,
.image-record-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.tech-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.compact-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

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

.archive-card {
  position: relative;
  display: flex;
  min-height: 260px;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(66, 213, 232, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(23, 33, 38, 0.78), rgba(7, 9, 10, 0.92));
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.image-card {
  min-height: 420px;
  padding-top: 14px;
}

.card-media {
  position: relative;
  z-index: 1;
  margin: 0 0 4px;
  overflow: hidden;
  border: 1px solid rgba(200, 163, 91, 0.2);
  border-radius: 7px;
  aspect-ratio: 16 / 10;
  background: rgba(0, 0, 0, 0.28);
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.92) contrast(1.04);
  transition: transform 240ms ease;
}

.image-card:hover .card-media img,
.image-card:focus-visible .card-media img {
  transform: scale(1.025);
}

.locomotive-section {
  background:
    linear-gradient(135deg, rgba(36, 79, 55, 0.26), transparent 42%),
    linear-gradient(180deg, rgba(200, 163, 91, 0.06), transparent 64%);
}

.locomotive-section .archive-card,
.eras-section .archive-card {
  background:
    linear-gradient(135deg, rgba(200, 163, 91, 0.12), transparent 36%),
    linear-gradient(180deg, rgba(19, 25, 20, 0.82), rgba(7, 9, 10, 0.94));
}

.archive-card::after {
  position: absolute;
  right: -36px;
  bottom: -36px;
  width: 118px;
  height: 118px;
  content: "";
  border: 1px solid rgba(200, 163, 91, 0.18);
  transform: rotate(45deg);
}

.archive-card:hover,
.archive-card:focus-visible {
  border-color: rgba(200, 163, 91, 0.48);
  transform: translateY(-2px);
  outline: none;
}

.compact-card {
  min-height: 210px;
}

.episode-card {
  min-height: 230px;
}

.record-number {
  color: var(--gold);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.status-pill {
  max-width: 58%;
  overflow: hidden;
  color: var(--cyan);
  border: 1px solid rgba(66, 213, 232, 0.22);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.record-role {
  margin: 0;
  color: var(--gold);
}

.text-command {
  position: relative;
  z-index: 1;
  align-self: flex-start;
  margin-top: auto;
  padding: 0;
  color: var(--pearl);
  border: 0;
  background: transparent;
  text-decoration: underline;
  text-decoration-color: rgba(66, 213, 232, 0.5);
  text-underline-offset: 5px;
  cursor: pointer;
}

.text-command:hover,
.text-command:focus-visible {
  color: var(--cyan);
  outline: none;
}

.text-command.is-disabled {
  color: var(--muted);
  cursor: not-allowed;
  text-decoration-color: rgba(152, 164, 166, 0.32);
}

.record-dialog {
  width: min(680px, calc(100vw - 32px));
  color: var(--pearl);
  border: 1px solid rgba(66, 213, 232, 0.34);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(66, 213, 232, 0.08), transparent 36%),
    #080d10;
  box-shadow: var(--shadow);
  padding: 26px;
}

.record-dialog::backdrop {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(6px);
}

.record-dialog h2 {
  margin: 0 42px 8px 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 32px;
  line-height: 1.1;
}

.dialog-image {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
  object-position: center;
  margin: 18px 0 4px;
  border: 1px solid rgba(200, 163, 91, 0.28);
  border-radius: 8px;
}

.record-dialog p {
  color: rgba(241, 238, 228, 0.76);
}

.record-dialog ul {
  margin: 18px 0 0;
  padding-left: 20px;
  color: rgba(241, 238, 228, 0.78);
}

.dialog-close {
  position: absolute;
  top: 16px;
  right: 16px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--pearl);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px max(24px, calc((100vw - var(--max)) / 2));
  color: var(--muted);
  background: #050608;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--gold);
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: auto;
    padding-top: 96px;
  }

  .access-console {
    max-width: 560px;
  }

  .card-grid,
  .tech-grid,
  .compact-grid,
  .image-record-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-header {
    padding: 0 18px;
  }

  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .primary-nav {
    position: fixed;
    top: 70px;
    right: 18px;
    left: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(5, 6, 8, 0.96);
    box-shadow: var(--shadow);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    padding: 12px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-subtitle {
    font-size: 21px;
  }

  .universe-grid,
  .arkon-grid,
  .about-grid,
  .episode-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    background-size: 58px 58px, 58px 58px, auto;
  }

  .site-header {
    min-height: 64px;
  }

  .brand {
    min-width: auto;
  }

  .brand small {
    display: none;
  }

  .primary-nav {
    top: 64px;
  }

  .hero {
    padding: 76px 18px 18px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .access-console {
    padding: 14px;
  }

  .console-header {
    margin-bottom: 12px;
  }

  #searchStatus {
    min-height: 0;
    margin-bottom: 0;
  }

  .console-metrics {
    display: none;
  }

  .hero-actions,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .content-section {
    padding: 64px 18px;
  }

  .section-heading h2 {
    font-size: 32px;
  }

  .card-grid,
  .tech-grid,
  .compact-grid,
  .image-record-grid {
    grid-template-columns: 1fr;
  }

  .archive-card,
  .feature-panel,
  .arkon-grid article,
  .about-grid article {
    min-height: auto;
  }

  .timeline-item {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 14px;
  }

  .timeline-index {
    width: 44px;
    height: 44px;
  }

  .timeline::before {
    left: 21px;
  }

  .status-pill {
    max-width: 52%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}