:root {
  color-scheme: dark;
  --black: #030305;
  --ink: #0b0d10;
  --white: #f5f4ec;
  --paper: #e9e4d7;
  --muted: #a8a294;
  --line: rgba(245, 244, 236, 0.18);
  --cyan: #00e7ff;
  --magenta: #ff2ea6;
  --acid: #d7ff2f;
  --signal: #ff4d1a;
  --violet: #7367ff;
  --steel: #98a6b3;
  --shadow: rgba(0, 0, 0, 0.58);
  --mono: "IBM Plex Mono", "Cascadia Mono", Consolas, ui-monospace, monospace;
  --display: "Arial Black", Impact, Haettenschweiler, sans-serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
    radial-gradient(circle at 15% 10%, rgba(255,46,166,0.18), transparent 28rem),
    radial-gradient(circle at 85% 4%, rgba(0,231,255,0.16), transparent 32rem),
    var(--black);
  background-size: 42px 42px, 42px 42px, auto, auto, auto;
  color: var(--white);
  font-family: var(--sans);
  line-height: 1.5;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: url("../img/noise.png");
  opacity: 0.16;
  mix-blend-mode: screen;
  pointer-events: none;
}

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

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

[data-lang="ru"] { display: none; }
html[data-lang-active="ru"] [data-lang="en"] { display: none; }
html[data-lang-active="ru"] [data-lang="ru"] { display: inline; }

.site-header {
  min-width: 0;
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(14rem, 1fr) auto auto;
  gap: 1rem;
  align-items: center;
  padding: 0.85rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: rgba(3, 3, 5, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-grid;
  gap: 0.08rem;
  font-family: var(--mono);
}

.brand strong {
  color: var(--acid);
  letter-spacing: 0;
}

.brand span,
.top-nav a {
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.top-nav {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--mono);
}

.top-nav a:hover,
.brand:hover span { color: var(--white); }

.lang-switch,
.filters {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

button,
.button {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(245, 244, 236, 0.045);
  color: var(--white);
  padding: 0.62rem 0.78rem;
  font: 700 0.75rem/1 var(--mono);
  text-transform: uppercase;
  cursor: pointer;
}

button:hover,
button.is-active,
button[aria-pressed="true"],
.button:hover {
  border-color: var(--acid);
  color: var(--acid);
}

.button--primary {
  background: var(--acid);
  color: var(--black);
  border-color: var(--acid);
}

main {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.6rem);
  padding: clamp(1rem, 2.5vw, 2rem);
}

.hero-shell,
.entry-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.9fr);
  min-height: 34rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(3,3,5,0.78), rgba(3,3,5,0.42)),
    url("../img/stamp-grid.png");
  background-size: cover;
  box-shadow: 0 26px 80px var(--shadow);
}

.hero-copy,
.entry-hero > div {
  min-width: 0;
  display: grid;
  align-content: end;
  gap: 1rem;
  padding: clamp(1.1rem, 4vw, 3rem);
}

.hero-visual {
  min-width: 0;
  margin: 0;
  display: grid;
  align-content: end;
  border-left: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.48);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 24rem;
  object-fit: cover;
  filter: saturate(1.1) contrast(1.05);
}

.hero-visual figcaption {
  padding: 0.75rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 0.72rem var(--mono);
}

.kicker,
.eyebrow,
.block-label,
.back-link {
  color: var(--cyan);
  font: 800 0.75rem/1.2 var(--mono);
  text-transform: uppercase;
}

h1,
h2,
h3,
p { margin: 0; }

h1 {
  max-width: 12ch;
  font-family: var(--display);
  font-size: clamp(3rem, 6vw, 5.4rem);
  line-height: 0.86;
  letter-spacing: 0;
  text-transform: uppercase;
  text-shadow: 0.06em 0 var(--magenta), -0.04em 0 var(--cyan);
}

h2 {
  font-family: var(--display);
  font-size: clamp(2rem, 4.6vw, 4.7rem);
  line-height: 0.95;
  letter-spacing: 0;
  text-transform: uppercase;
}

h3 {
  font-family: var(--display);
  line-height: 1;
  letter-spacing: 0;
}

.lede {
  max-width: 56rem;
  color: var(--paper);
  font-size: clamp(1.05rem, 2.2vw, 1.55rem);
  font-weight: 800;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.section-head {
  min-width: 0;
  display: grid;
  gap: 0.5rem;
  padding: clamp(1rem, 2.5vw, 1.4rem);
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--black);
}

.section-head .kicker { color: var(--magenta); }
.section-head p { max-width: 62rem; font-weight: 700; }

.split-section,
.legal-mechanism,
.taxonomy,
.featured,
.naming,
.related {
  display: grid;
  gap: 1rem;
}

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

.split-section .section-head { grid-column: 1 / -1; }

.split-section article,
.cluster-tile,
.entry-meta,
.entry-block,
.references,
.story-card {
  min-width: 0;
  border: 1px solid var(--line);
  background: rgba(7, 9, 12, 0.78);
}

.split-section article {
  min-height: 16rem;
  display: grid;
  align-content: space-between;
  gap: 1rem;
  padding: 1.2rem;
}

.panel-index {
  width: fit-content;
  padding: 0.3rem 0.5rem;
  background: var(--signal);
  color: var(--black);
  font: 900 0.82rem var(--mono);
}

.split-section h3 { font-size: clamp(1.8rem, 4vw, 3.6rem); color: var(--acid); }
.split-section p { color: var(--paper); font-size: 1.05rem; }

.cluster-rail,
.featured-grid,
.lexicon-grid,
.mini-grid,
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.cluster-tile {
  min-height: 13rem;
  display: grid;
  align-content: space-between;
  gap: 1rem;
  padding: 1rem;
}

.cluster-tile span {
  color: var(--magenta);
  font: 900 1rem var(--mono);
}

.cluster-tile h3 { font-size: 1.6rem; color: var(--white); }
.cluster-tile p { color: var(--muted); font-weight: 700; }

.story-card {
  position: relative;
  min-height: 16rem;
  display: grid;
  align-content: end;
  gap: 0.75rem;
  overflow: hidden;
  padding: 1rem;
  box-shadow: 0 20px 55px rgba(0,0,0,0.38);
}

.story-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(135deg, rgba(0,231,255,0.16), transparent 38%),
    linear-gradient(315deg, rgba(255,46,166,0.22), transparent 42%),
    url("../img/stamp-grid.png");
  background-size: cover;
  opacity: 0.8;
}

.story-card::after {
  content: "";
  position: absolute;
  inset: 0;
  height: 0.45rem;
  background: linear-gradient(90deg, var(--cyan), var(--magenta), var(--acid), var(--signal));
}

.story-card:hover {
  transform: translateY(-3px);
  border-color: var(--acid);
}

.story-card h3 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  color: var(--white);
  text-transform: uppercase;
}

.story-card p { color: var(--paper); font-weight: 800; }
.story-card small { color: var(--muted); font: 0.72rem var(--mono); }
.story-card.is-hidden { display: none; }

.featured-grid .story-card:first-child {
  grid-column: span 2;
  grid-row: span 2;
  min-height: 28rem;
}

.featured-grid .story-card:first-child h3 { font-size: clamp(2.5rem, 5vw, 4.6rem); }

.filters {
  padding: 0.8rem;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.36);
}

.name-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.name-strip a {
  min-height: 10rem;
  display: grid;
  place-items: end start;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--black);
  font: 900 clamp(1.4rem, 2.6vw, 2.3rem)/0.96 var(--display);
  text-transform: uppercase;
}

.entry-hero {
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.32fr);
  min-height: 26rem;
}

.entry-meta {
  display: grid;
  align-content: end;
  gap: 0.45rem;
  padding: 1rem;
  border-left: 1px solid var(--line);
}

.entry-meta span {
  color: var(--cyan);
  font: 800 0.72rem var(--mono);
  text-transform: uppercase;
}

.entry-meta strong { color: var(--paper); }

.back-link { width: fit-content; }

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

.entry-block {
  min-height: 18rem;
  display: grid;
  align-content: space-between;
  gap: 1rem;
  padding: 1.1rem;
}

.entry-block--wide {
  grid-column: span 2;
  background: var(--white);
  color: var(--black);
}

.entry-block--wide .block-label { color: var(--magenta); }

.entry-block--inverse {
  background: linear-gradient(135deg, rgba(255,77,26,0.96), rgba(255,46,166,0.78));
  color: var(--black);
}

.entry-block h2 {
  font-size: clamp(1.6rem, 3vw, 2.6rem);
}

.entry-block p {
  color: inherit;
  font-size: 1.05rem;
  font-weight: 750;
}

.references {
  padding: 1rem;
}

summary {
  cursor: pointer;
  color: var(--acid);
  font: 900 0.82rem var(--mono);
  text-transform: uppercase;
}

.source-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}

.source-grid a,
.source-grid span {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.55rem 0.7rem;
  color: var(--paper);
  font: 0.78rem var(--mono);
}

.source-grid a:hover { color: var(--acid); border-color: var(--acid); }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font: 0.82rem var(--mono);
}

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

@media (max-width: 1180px) {
  .cluster-rail,
  .featured-grid,
  .lexicon-grid,
  .mini-grid,
  .related-grid,
  .name-strip,
  .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-shell,
  .entry-hero {
    grid-template-columns: 1fr;
  }

  .hero-visual,
  .entry-meta {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 760px) {
  .site-header {
    position: relative;
    grid-template-columns: 1fr;
  }

  .top-nav,
  .lang-switch,
  .hero-actions,
  .filters {
    width: 100%;
  }

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

  .top-nav a {
    font-size: 0.68rem;
    overflow-wrap: anywhere;
  }

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

  .hero-actions {
    display: grid;
  }

  button,
  .button {
    min-width: 0;
    flex: 1 1 0;
    text-align: center;
  }

  main {
    padding: 0.75rem;
  }

  .split-section,
  .cluster-rail,
  .featured-grid,
  .lexicon-grid,
  .mini-grid,
  .related-grid,
  .name-strip,
  .entry-grid {
    grid-template-columns: 1fr;
  }

  .featured-grid .story-card:first-child,
  .entry-block--wide {
    grid-column: auto;
    grid-row: auto;
  }

  .hero-shell,
  .entry-hero {
    min-height: auto;
    width: 100%;
    max-width: calc(100vw - 1.5rem);
    overflow: hidden;
  }

  .hero-copy,
  .entry-hero > div {
    padding: 1rem;
    width: 100%;
    max-width: 100%;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(1.85rem, 7.2vw, 2rem);
    overflow-wrap: anywhere;
  }

  .lede {
    max-width: 100%;
    font-size: 1rem;
    overflow-wrap: anywhere;
  }

  .hero-actions .button {
    width: 100%;
  }

  .entry-block p {
    overflow-wrap: anywhere;
  }

  .site-footer {
    display: grid;
    padding: 1rem;
  }
}