:root {
  --bg: #121411;
  --bg-soft: #171a17;
  --panel: rgba(24, 27, 24, 0.84);
  --panel-strong: rgba(18, 21, 19, 0.94);
  --line: rgba(213, 202, 177, 0.12);
  --line-strong: rgba(213, 202, 177, 0.22);
  --text: #e2d8c4;
  --text-soft: #b9b09d;
  --text-faint: #8a8377;
  --amber: #b48a50;
  --amber-soft: rgba(180, 138, 80, 0.14);
  --moss: #20261f;
  --earth: #2f2a24;
  --cold: #6c8797;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --radius-small: 14px;
  --max-width: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(circle at top, rgba(180, 138, 80, 0.08), transparent 22%),
    radial-gradient(circle at 20% 20%, rgba(80, 93, 74, 0.16), transparent 30%),
    linear-gradient(180deg, #0d0f0d 0%, #121411 44%, #0d100e 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(125deg, rgba(255, 255, 255, 0.02), transparent 18%),
    radial-gradient(circle at 70% 16%, rgba(180, 138, 80, 0.07), transparent 14%);
  opacity: 0.8;
}

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

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

.site-shell {
  position: relative;
  overflow: hidden;
}

.site-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 4px 4px, 4px 4px;
  mix-blend-mode: soft-light;
}

.hero,
.section-nav,
.main-layout {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.hero {
  padding: 2rem 0 2.5rem;
}

.hero__meta,
.hero__eyebrow,
.section-heading__kicker,
.detail-panel__label,
.archive-card__meta,
.timeline__year,
.list-card__state {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-size: 0.74rem;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.5fr minmax(280px, 0.8fr);
  gap: 2rem;
  align-items: end;
  padding-top: 1.25rem;
}

.hero h1,
.section-heading h2,
.detail-panel h3,
.archive-card h3,
.list-card h3,
.timeline h3,
.future-card h3 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.6rem, 8vw, 6.6rem);
  line-height: 0.92;
  max-width: 10ch;
}

.hero__subtitle {
  margin: 1rem 0 0;
  max-width: 34rem;
  font-size: clamp(1.05rem, 2vw, 1.45rem);
  color: var(--text-soft);
}

.hero__intro {
  margin: 1.4rem 0 0;
  color: var(--text);
  font-size: 1rem;
}

.hero__aside {
  align-self: stretch;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(29, 33, 30, 0.66), rgba(18, 20, 18, 0.88));
  box-shadow: var(--shadow);
}

.hero__aside-label {
  margin: 0;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
}

.hero__aside-text {
  margin: 1rem 0 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.button-primary {
  display: inline-flex;
  margin-top: 1.8rem;
  padding: 0.95rem 1.35rem;
  border: 1px solid rgba(180, 138, 80, 0.42);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(180, 138, 80, 0.18), rgba(180, 138, 80, 0.08));
  color: var(--text);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button-primary:hover,
.archive-card__link:hover,
.section-nav a:hover {
  transform: translateY(-1px);
}

.section-nav {
  position: sticky;
  top: 0.5rem;
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.85rem;
  margin-bottom: 1.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(14, 16, 15, 0.76);
  backdrop-filter: blur(14px);
}

.section-nav a {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  color: var(--text-soft);
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.section-nav a:hover {
  background: rgba(180, 138, 80, 0.08);
  color: var(--text);
}

.main-layout {
  display: grid;
  gap: 2rem;
  padding-bottom: 4rem;
}

.context-block,
.archive-section {
  position: relative;
}

.context-block {
  display: grid;
  gap: 0.75rem;
  padding: 1.6rem 1.5rem;
  border-left: 1px solid var(--line-strong);
  color: var(--text-soft);
  max-width: 48rem;
}

.context-block p {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.75;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1fr);
  gap: 1.5rem;
  align-items: end;
  margin-bottom: 1.4rem;
}

.section-heading h2 {
  margin: 0.15rem 0 0;
  font-size: clamp(2.1rem, 4vw, 3rem);
}

.section-heading__text {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
}

.archive-card {
  grid-column: span 4;
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(20, 23, 20, 0.92), rgba(14, 17, 15, 0.98));
  box-shadow: var(--shadow);
}

.archive-card--signal {
  border-color: rgba(108, 135, 151, 0.28);
}

.archive-card__image-wrap {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: #141615;
}

.archive-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.88) contrast(1.02);
}

.archive-card__image-wrap::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(10, 11, 10, 0.8));
}

.archive-card__status {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  z-index: 1;
  padding: 0.35rem 0.6rem;
  border: 1px solid rgba(213, 202, 177, 0.16);
  border-radius: 999px;
  background: rgba(12, 13, 12, 0.68);
  color: var(--text-soft);
  font-size: 0.72rem;
}

.archive-card__body {
  display: grid;
  gap: 0.75rem;
  padding: 1.2rem;
}

.archive-card h3,
.list-card h3,
.entity-card h3,
.system-card h3,
.timeline h3,
.future-card h3,
.detail-panel h3 {
  margin: 0;
  font-size: 2rem;
}

.archive-card__function,
.list-card__function,
.detail-panel__alias {
  margin: 0;
  color: var(--amber);
}

.archive-card__summary,
.list-card p,
.system-card__summary,
.timeline p,
.detail-panel__blocks p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

blockquote {
  margin: 0;
  padding-left: 1rem;
  border-left: 1px solid rgba(180, 138, 80, 0.35);
  color: var(--text);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.25rem;
  line-height: 1.45;
}

.archive-card__link {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(180, 138, 80, 0.05);
  transition: transform 180ms ease, border-color 180ms ease;
}

.detail-panel {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: 1.4rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background:
    linear-gradient(180deg, rgba(22, 24, 22, 0.96), rgba(13, 15, 14, 0.98)),
    radial-gradient(circle at top right, rgba(180, 138, 80, 0.09), transparent 28%);
  box-shadow: var(--shadow);
}

.detail-panel__image {
  min-height: 100%;
  border-radius: calc(var(--radius) - 6px);
  overflow: hidden;
}

.detail-panel__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-panel__content {
  display: grid;
  gap: 1.1rem;
  padding: 0.4rem;
}

.detail-panel__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.detail-panel__meta div,
.future-card,
.list-card {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--panel);
}

.detail-panel__meta dt,
.detail-panel__block-title {
  margin: 0 0 0.45rem;
  color: var(--text-faint);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.detail-panel__meta dd {
  margin: 0;
  color: var(--text);
}

.detail-panel__blocks {
  display: grid;
  gap: 1rem;
}

.detail-panel__modules,
.future-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.detail-panel__modules span,
.future-card li {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.02);
  list-style: none;
}

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

.entity-card {
  display: grid;
  grid-template-rows: auto 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(20, 23, 20, 0.92), rgba(14, 17, 15, 0.98));
  box-shadow: var(--shadow);
}

.entity-card__image-wrap {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #141615;
}

.entity-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.02);
}

.entity-card__body {
  display: grid;
  gap: 0.75rem;
  padding: 1.2rem;
}

.entity-card__classification {
  margin: 0;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
}

.entity-card__subtitle {
  margin: 0;
  color: var(--amber);
}

.entity-card__summary,
.entity-card__relations {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
}

.entity-card__details {
  display: grid;
  gap: 0.9rem;
}

.entity-card__details summary {
  cursor: pointer;
  list-style: none;
}

.entity-card__details summary::-webkit-details-marker {
  display: none;
}

.entity-card__detail-blocks {
  display: grid;
  gap: 0.8rem;
}

.entity-card__detail-block {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.02);
}

.entity-card__detail-block p {
  margin: 0;
}

.entity-card--text {
  grid-template-rows: 1fr;
}

.entity-card__relations span {
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
  margin-right: 0.4rem;
}

.system-card {
  display: grid;
  border: 1px solid rgba(108, 135, 151, 0.18);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(18, 23, 22, 0.96), rgba(13, 16, 15, 0.98)),
    radial-gradient(circle at top right, rgba(108, 135, 151, 0.08), transparent 26%);
  box-shadow: var(--shadow);
}

.system-card__body {
  display: grid;
  gap: 0.8rem;
  padding: 1.2rem;
}

.list-card--system {
  border-color: rgba(108, 135, 151, 0.22);
}

.detail-panel--system {
  grid-template-columns: 1fr;
}

.detail-panel__content--full {
  padding: 0.6rem;
}

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

.timeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1rem;
}

.timeline__item {
  padding: 1rem;
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.timeline__year {
  color: var(--amber);
}

.future-card ul {
  margin: 1rem 0 0;
  padding: 0;
}

.archive-section--future {
  padding-bottom: 2rem;
}

@media (max-width: 1100px) {
  .archive-card {
    grid-column: span 6;
  }

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

@media (max-width: 820px) {
  .hero,
  .section-nav,
  .main-layout {
    width: min(calc(100% - 1.25rem), var(--max-width));
  }

  .hero__grid,
  .section-heading,
  .detail-panel,
  .list-grid,
  .future-grid {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .archive-card {
    grid-column: auto;
  }

  .section-nav {
    top: auto;
    border-radius: 22px;
  }

  .detail-panel__meta {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}