/* ============================================================
   ATLAS OF ARTIFICIAL INTELLIGENCE
   Editorial cartographic theme — public viewer
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Geist:wght@300;400;500;600&family=Geist+Mono:wght@300;400;500&display=swap');

:root,
:root[data-theme="dark"] {
  --bg:        #0d0b08;
  --bg-2:      #15110c;
  --bg-3:      #1c1812;
  --paper:     #ede4cc;
  --paper-2:   #d4c9ac;
  --paper-3:   #a89c80;
  --ink:       #1a160f;
  --gold:      #c9a544;
  --gold-soft: #e2c062;
  --rust:      #b14a2c;
  --verdigris: #4a8474;
  --violet:    #8060a8;
  --muted:     #5c5447;
  --line:      rgba(237, 228, 204, 0.10);
  --line-2:    rgba(237, 228, 204, 0.20);

  --country-fill:        #1d1812;
  --country-fill-active: #2a2218;
  --surface-glass:       rgba(13, 11, 8, 0.92);
  --surface-glass-soft:  rgba(13, 11, 8, 0.72);
  --scrim:               rgba(13, 11, 8, 0.75);
  --on-accent:           #0d0b08;
  --noise-svg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' /%3E%3CfeColorMatrix values='0 0 0 0 0.93 0 0 0 0 0.89 0 0 0 0 0.80 0 0 0 0.025 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  --tint-1: rgba(201, 165, 68, 0.06);
  --tint-2: rgba(74, 132, 116, 0.05);
  --map-tint: rgba(201, 165, 68, 0.04);

  --serif: 'Instrument Serif', 'Iowan Old Style', 'Hoefler Text', serif;
  --sans:  'Geist', system-ui, sans-serif;
  --mono:  'Geist Mono', ui-monospace, 'SF Mono', monospace;
}

:root[data-theme="light"] {
  --bg:        #f0e9d6;
  --bg-2:      #e6dec5;
  --bg-3:      #ddd2b3;
  --paper:     #1a160f;
  --paper-2:   #3a3122;
  --paper-3:   #5c5040;
  --ink:       #ede4cc;
  --gold:      #9d7f25;
  --gold-soft: #7d6519;
  --rust:      #9a3e25;
  --verdigris: #2f5f51;
  --violet:    #5d4280;
  --muted:     #8a7d65;
  --line:      rgba(26, 22, 15, 0.10);
  --line-2:    rgba(26, 22, 15, 0.22);

  --country-fill:        #e0d4b3;
  --country-fill-active: #ccb986;
  --surface-glass:       rgba(240, 233, 214, 0.92);
  --surface-glass-soft:  rgba(240, 233, 214, 0.78);
  --scrim:               rgba(58, 49, 34, 0.55);
  --on-accent:           #f5efdd;
  --noise-svg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' /%3E%3CfeColorMatrix values='0 0 0 0 0.18 0 0 0 0 0.14 0 0 0 0 0.08 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  --tint-1: rgba(157, 127, 37, 0.08);
  --tint-2: rgba(47, 95, 81, 0.06);
  --map-tint: rgba(157, 127, 37, 0.05);
}

@media (prefers-color-scheme: light) {
  :root[data-theme="system"] {
    --bg:        #f0e9d6;
    --bg-2:      #e6dec5;
    --bg-3:      #ddd2b3;
    --paper:     #1a160f;
    --paper-2:   #3a3122;
    --paper-3:   #5c5040;
    --ink:       #ede4cc;
    --gold:      #9d7f25;
    --gold-soft: #7d6519;
    --rust:      #9a3e25;
    --verdigris: #2f5f51;
    --violet:    #5d4280;
    --muted:     #8a7d65;
    --line:      rgba(26, 22, 15, 0.10);
    --line-2:    rgba(26, 22, 15, 0.22);

    --country-fill:        #e0d4b3;
    --country-fill-active: #ccb986;
    --surface-glass:       rgba(240, 233, 214, 0.92);
    --surface-glass-soft:  rgba(240, 233, 214, 0.78);
    --scrim:               rgba(58, 49, 34, 0.55);
    --on-accent:           #f5efdd;
    --noise-svg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' /%3E%3CfeColorMatrix values='0 0 0 0 0.18 0 0 0 0 0.14 0 0 0 0 0.08 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    --tint-1: rgba(157, 127, 37, 0.08);
    --tint-2: rgba(47, 95, 81, 0.06);
    --map-tint: rgba(157, 127, 37, 0.05);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: 0.005em;
}

body {
  background-image:
    radial-gradient(ellipse at 20% 0%, var(--tint-1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, var(--tint-2) 0%, transparent 50%),
    var(--noise-svg);
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 165, 68, 0.3);
  transition: border-color 0.2s, color 0.2s;
}
a:hover { color: var(--paper); border-color: var(--paper); }

/* ─────────  Top bar ───────── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 48px;
  background: var(--surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-3);
}
.topbar .crest {
  display: flex; align-items: center; gap: 14px;
}
.topbar .crest .glyph {
  width: 22px; height: 22px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: grid; place-items: center;
  color: var(--gold);
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  line-height: 1;
}
.topbar nav { display: flex; gap: 28px; align-items: center; }
.topbar nav a {
  color: var(--paper-3);
  border-bottom: none;
  position: relative;
}
.topbar nav a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 1px; background: var(--gold); transform: scaleX(0);
  transform-origin: left; transition: transform 0.3s ease;
}
.topbar nav a:hover { color: var(--paper); }
.topbar nav a:hover::after { transform: scaleX(1); }

.nav-btn {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-3);
  cursor: pointer;
  position: relative;
}
.nav-btn::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -6px;
  height: 1px; background: var(--gold); transform: scaleX(0);
  transform-origin: left; transition: transform 0.3s ease;
}
.nav-btn:hover { color: var(--paper); }
.nav-btn:hover::after { transform: scaleX(1); }

/* ─────────  Theme switcher ───────── */

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 2px;
}
.theme-btn {
  background: none;
  border: none;
  width: 26px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  color: var(--paper-3);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s, background 0.15s;
}
.theme-btn:hover { color: var(--paper); }
.theme-btn.is-active {
  color: var(--on-accent);
  background: var(--gold);
}
.theme-btn svg {
  width: 12px;
  height: 12px;
  display: block;
}

/* ─────────  Hero ───────── */

.hero {
  position: relative;
  padding: 96px 48px 64px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: end;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: ''; position: absolute;
  top: 24px; right: 48px;
  width: 1px; height: calc(100% - 48px);
  background: linear-gradient(to bottom, transparent, var(--line-2) 30%, var(--line-2) 70%, transparent);
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(72px, 11vw, 168px);
  line-height: 0.88;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.hero h1 .em {
  font-style: italic;
  color: var(--gold);
  display: block;
}
.hero h1 .second {
  display: block;
  font-size: 0.78em;
  color: var(--paper-2);
}

.hero .meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--paper-3);
  display: flex; flex-direction: column; gap: 14px;
  padding-bottom: 12px;
}
.hero .meta dl {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
}
.hero .meta dt { color: var(--muted); }
.hero .meta dd { color: var(--paper-2); }
.hero .lede {
  margin-top: 18px;
  font-family: var(--serif);
  font-size: 15px;
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  line-height: 1.55;
  color: var(--paper-2);
}

/* ─────────  Atlas section ───────── */

.atlas {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  border-bottom: 1px solid var(--line);
  min-height: 720px;
}

.atlas__aside {
  padding: 48px 32px 48px 48px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 40px;
}

.section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.section-label::before {
  content: ''; width: 18px; height: 1px; background: var(--gold);
}

.glance-block { display: flex; flex-direction: column; gap: 18px; }

.glance-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line-2);
}
.glance-tab {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 6px 10px 5px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}
.glance-tab:hover { color: var(--paper-2); }
.glance-tab.is-active { color: var(--gold); border-bottom-color: var(--gold); }
.glance-tab[data-glance="tools"].is-active {
  color: #8060A8;
  border-bottom-color: #8060A8;
}

.stats {
  display: flex; flex-direction: column; gap: 18px;
}
.stat .num {
  font-family: var(--serif);
  font-size: 56px;
  line-height: 1;
  color: var(--paper);
  letter-spacing: -0.02em;
}
.stat .num em { font-style: italic; color: var(--gold); }
.glance-block[data-glance="tools"] .stat .num em { color: #8060A8; }
.stat .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-3);
  margin-top: 4px;
}

.atlas-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.atlas-search {
  width: 100%;
  background: transparent;
  border: 1px solid var(--line-2);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 8px 32px 8px 10px;
  outline: none;
  transition: border-color 0.2s;
}
.atlas-search::placeholder { color: var(--muted); }
.atlas-search:focus { border-color: var(--gold); }
.atlas-search-clear {
  position: absolute;
  right: 6px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 4px;
  transition: color 0.15s;
}
.atlas-search-clear:hover { color: var(--paper); }

.filter-group { display: flex; flex-direction: column; gap: 10px; }
.filter-row {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.chip {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 10px;
  background: transparent;
  color: var(--paper-3);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.chip:hover { color: var(--paper); border-color: var(--paper-3); }
.chip.is-active {
  color: var(--on-accent); background: var(--gold);
  border-color: var(--gold);
}
.cat-filterbar.tools-mode .chip.is-active {
  background: var(--violet);
  border-color: var(--violet);
  color: var(--on-accent);
}

/* ─────────  Map ───────── */

.atlas__map {
  position: relative;
  background:
    radial-gradient(ellipse at center, var(--map-tint) 0%, transparent 65%),
    var(--bg);
  overflow: hidden;
}

.atlas__map .view-panel { width: 100%; height: 100%; position: relative; }
.atlas__map .view-panel[hidden] { display: none; }

.view-switch {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  display: inline-flex;
  background: var(--surface-glass-soft);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 2px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.view-btn {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 6px 14px;
  background: transparent;
  color: var(--paper-3);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.view-btn:hover { color: var(--paper); }
.view-btn.is-active {
  color: var(--on-accent);
  background: var(--gold);
}

.atlas__map svg.world {
  width: 100%;
  height: 100%;
  display: block;
}

/* ─────────  Timeline ───────── */

#timeline { width: 100%; height: 100%; }
#timeline svg.timeline {
  width: 100%;
  height: 100%;
  display: block;
}

.tl-lane {
  fill: rgba(237, 228, 204, 0.015);
  stroke: rgba(237, 228, 204, 0.06);
  stroke-dasharray: 2 3;
}
.tl-lane-models { fill: rgba(201, 165, 68, 0.025); }
.tl-lane-tools  { fill: rgba(128, 96, 168, 0.035); }

.tl-lane-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.26em;
  fill: var(--muted);
  text-transform: uppercase;
}

.tl-hint {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  fill: var(--paper-3);
  text-transform: uppercase;
}

.tl-gridline {
  stroke: rgba(237, 228, 204, 0.05);
  stroke-width: 0.5;
  stroke-dasharray: 2 3;
}
.tl-year {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  fill: var(--paper-3);
}

.tl-connector {
  fill: none;
  stroke: rgba(201, 165, 68, 0.22);
  stroke-width: 0.7;
}

.tl-tool-conn {
  fill: none;
  stroke: var(--violet);
  stroke-width: 1;
  opacity: 0.45;
}

.tl-legend-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  fill: var(--paper-3);
}

.tl-model-tool-conn {
  fill: none;
  stroke: var(--verdigris);
  stroke-width: 1;
  stroke-dasharray: 3 4;
  opacity: 0.4;
}

.tl-model { cursor: pointer; }
.tl-model .tl-ring {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1;
  opacity: 0.55;
  transition: opacity 0.18s, stroke-width 0.18s;
}
.tl-model .tl-dot {
  fill: var(--gold);
  transition: r 0.18s, fill 0.18s;
}
.tl-model.type-open-weight .tl-ring { stroke: var(--verdigris); }
.tl-model.type-open-weight .tl-dot  { fill: var(--verdigris); }
.tl-model:hover .tl-ring { opacity: 1; stroke-width: 1.5; }
.tl-model:hover .tl-dot  { fill: var(--paper); }

.tl-submodel { cursor: pointer; }
.tl-submodel .tl-sub-dot {
  fill: var(--gold-soft);
  opacity: 0.85;
  stroke: rgba(13, 11, 8, 0.6);
  stroke-width: 0.6;
  transition: fill 0.18s, stroke-width 0.18s;
}
.tl-submodel:hover .tl-sub-dot {
  fill: var(--paper);
  opacity: 1;
  stroke: var(--gold);
  stroke-width: 1.5;
}

.tl-tool { cursor: pointer; }
.tl-tool .tl-tdiamond {
  fill: var(--violet);
  transition: fill 0.18s;
}
.tl-tool .tl-tdiamond-ring {
  fill: none;
  stroke: var(--violet);
  stroke-width: 1;
  opacity: 0.5;
  transition: opacity 0.18s, stroke-width 0.18s;
}
.tl-tool:hover .tl-tdiamond { fill: var(--paper); }
.tl-tool:hover .tl-tdiamond-ring { opacity: 1; stroke-width: 1.5; }

.atlas__map .crosshair {
  position: absolute; pointer-events: none;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
}
.atlas__map .crosshair.tl { top: 16px; left: 20px; }
.atlas__map .crosshair.tr { top: 16px; right: 20px; }
.atlas__map .crosshair.bl { bottom: 16px; left: 20px; }
.atlas__map .crosshair.br { bottom: 16px; right: 20px; }

.world .country {
  fill: var(--country-fill);
  stroke: var(--line);
  stroke-width: 0.5;
  transition: fill 0.2s;
}
.world .country.has-models {
  fill: var(--country-fill-active);
  stroke: rgba(201, 165, 68, 0.28);
}
.world .graticule {
  fill: none;
  stroke: rgba(237, 228, 204, 0.04);
  stroke-width: 0.5;
  stroke-dasharray: 2 2;
}
.world .sphere {
  fill: none;
  stroke: rgba(201, 165, 68, 0.15);
  stroke-width: 1;
}

.marker {
  cursor: pointer;
}
.marker .pulse {
  fill: var(--gold);
  fill-opacity: 0.18;
  transform-origin: center;
  animation: pulse 3s ease-in-out infinite;
}
.marker .ring {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1;
  opacity: 0.6;
}
.marker .dot {
  fill: var(--gold);
  stroke: var(--bg);
  stroke-width: 1.5;
  transition: r 0.2s ease;
}
.marker.open .dot, .marker:hover .dot {
  fill: var(--paper);
  r: 5;
}
.marker.type-open-weight .dot { fill: var(--verdigris); }
.marker.type-open-weight .ring { stroke: var(--verdigris); }
.marker.type-open-weight .pulse { fill: var(--verdigris); }

/* ─────────  Tool markers (diamond) ───────── */

.tool-marker { cursor: pointer; }
.tool-marker .tdiamond {
  fill: var(--violet);
  stroke: var(--bg);
  stroke-width: 1.5;
}
.tool-marker .tdiamond-ring {
  fill: none;
  stroke: var(--violet);
  stroke-width: 1;
  opacity: 0;
  transition: opacity 0.2s;
}
.tool-marker.open .tdiamond-ring,
.tool-marker:hover .tdiamond-ring { opacity: 0.7; }
.tool-marker.open .tdiamond,
.tool-marker:hover .tdiamond { fill: var(--paper); }

/* ─────────  Layer toggles ───────── */

.layer-toggles {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
}
.layer-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--line);
  border-left: 2px solid transparent;
  padding: 7px 10px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.18s;
  text-align: left;
  width: 100%;
}
.layer-btn:hover { color: var(--paper-2); border-color: var(--line-2); }
.layer-btn.is-active { color: var(--paper-2); }
.layer-btn.is-active[data-layer="models"] { border-left-color: var(--gold); }
.layer-btn.is-active[data-layer="tools"]  { border-left-color: var(--violet); }
.layer-swatch {
  width: 9px; height: 9px; flex-shrink: 0;
}
.layer-swatch.models {
  background: var(--gold);
  border-radius: 50%;
}
.layer-swatch.tools {
  background: var(--violet);
  transform: rotate(45deg);
}
.layer-num {
  margin-left: auto;
  font-size: 9px;
  color: var(--muted);
  transition: color 0.18s;
}
.layer-btn.is-active .layer-num { color: var(--paper-3); }

/* ─────────  Built-on tags (tool detail panel) ───────── */

.built-on-tag {
  display: inline-block;
  background: rgba(128, 96, 168, 0.12);
  border: 1px solid rgba(128, 96, 168, 0.28);
  color: #a888d8;
  padding: 1px 6px;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  margin: 0 3px 3px 0;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); fill-opacity: 0.16; }
  50%      { transform: scale(2.4); fill-opacity: 0; }
}

.map-tooltip {
  position: fixed;
  pointer-events: none;
  background: var(--bg-2);
  color: var(--paper);
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  border: 1px solid var(--line-2);
  box-shadow: 4px 4px 0 var(--gold);
  opacity: 0;
  transform: translate(-50%, -120%);
  transition: opacity 0.15s;
  z-index: 50;
  white-space: nowrap;
  max-width: 280px;
}
.map-tooltip.is-visible { opacity: 1; }
.map-tooltip .name {
  font-family: var(--serif);
  font-style: italic;
  font-size: 17px;
  display: block;
  margin-bottom: 2px;
  letter-spacing: 0;
}
.map-tooltip .org { color: var(--muted); }
.map-tooltip .place { color: var(--rust); margin-top: 4px; display: block; }

/* ─────────  Catalogue ───────── */

.catalogue {
  padding: 64px 48px 48px;
  border-bottom: 1px solid var(--line);
}
.catalogue header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

/* Catalogue tab switcher */
.cat-tabs {
  display: flex;
  gap: 0;
  margin-left: auto;
  border-bottom: 1px solid var(--line-2);
  align-self: flex-end;
  padding-bottom: 0;
}
.cat-tab {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  padding: 10px 18px 8px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
  white-space: nowrap;
}
.cat-tab:hover { color: var(--paper-2); }
.cat-tab.is-active { color: var(--gold); border-bottom-color: var(--gold); }
.cat-tab[data-cat="tools"].is-active { color: var(--violet); border-bottom-color: var(--violet); }

/* Tool category pill */
.catalogue__table .cat-pill {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid rgba(128, 96, 168, 0.35);
  border-radius: 999px;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet);
}

/* Sorted column colour for tools table */
#cat-tools th.sorted { color: var(--violet); }
.catalogue h2 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 56px;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.catalogue header .count {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.cat-filterbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0;
}
.cat-filterbar .atlas-search-wrap {
  flex: 0 0 auto;
  width: 220px;
}
.cat-filterbar .filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

table.catalogue__table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 12px;
}
.catalogue__table th {
  text-align: left;
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 14px 12px;
  border-bottom: 1px solid var(--line-2);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.catalogue__table th:hover { color: var(--paper); }
.catalogue__table th.sorted { color: var(--gold); }
.catalogue__table th.sorted::after {
  content: ' ↓'; font-family: var(--sans);
}
.catalogue__table th.sorted.asc::after { content: ' ↑'; }
.catalogue__table td {
  padding: 16px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--paper-2);
  vertical-align: middle;
}
.catalogue__table tr { transition: background 0.15s; cursor: pointer; }
.catalogue__table tr:hover td { background: rgba(201, 165, 68, 0.04); color: var(--paper); }
.catalogue__table .name-cell {
  font-family: var(--serif);
  font-size: 22px;
  font-style: italic;
  letter-spacing: 0;
  color: var(--paper);
}
.catalogue__table .type-pill {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.catalogue__table .type-pill.proprietary { color: var(--gold); border-color: rgba(201, 165, 68, 0.4); }
.catalogue__table .type-pill.open-weight  { color: var(--verdigris); border-color: rgba(74, 132, 116, 0.5); }

/* ─────────  Selected detail panel ───────── */

.detail-panel {
  position: fixed;
  top: 0; right: 0;
  width: min(420px, 92vw);
  height: 100vh;
  background: var(--bg-2);
  border-left: 1px solid var(--gold);
  padding: 48px 40px 40px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  z-index: 100;
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
}
.detail-panel.is-open { transform: translateX(0); }
.detail-panel .close {
  position: absolute; top: 20px; right: 20px;
  background: none; border: 1px solid var(--line-2);
  color: var(--paper-3);
  width: 36px; height: 36px;
  font-family: var(--serif); font-size: 22px;
  cursor: pointer;
  border-radius: 50%;
  transition: all 0.2s;
  line-height: 1;
}
.detail-panel .close:hover { color: var(--paper); border-color: var(--paper); }
.detail-panel .eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.detail-panel h3 {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 56px;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin-bottom: 8px;
}
.detail-panel .org-line {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--paper-2);
  margin-bottom: 28px;
}
.detail-panel .org-line .place {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust);
  display: block;
  margin-top: 6px;
}
.detail-panel dl.specs {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 14px 16px;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  padding: 24px 0;
  margin-bottom: 24px;
  font-family: var(--mono);
  font-size: 12px;
}
.detail-panel dt {
  font-size: 10px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted);
}
.detail-panel dd { color: var(--paper); }
.detail-panel .notes {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.4;
  font-style: italic;
  color: var(--paper-2);
}

/* ─────────  Connected Models (in tool detail) ───────── */

.detail-panel .model-connections-section {
  margin-top: 24px;
  border-top: 1px solid var(--line-2);
  padding-top: 20px;
}
.detail-panel .model-connections-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--paper-3);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.detail-panel .model-connections-title::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}
.detail-panel .conn-model-btn {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border: 1px solid rgba(201, 165, 68, 0.3);
  background: transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  margin-bottom: 6px;
}
.detail-panel .conn-model-btn:last-child { margin-bottom: 0; }
.detail-panel .conn-model-btn:hover {
  background: rgba(201, 165, 68, 0.08);
  border-color: var(--gold);
}
.detail-panel .conn-model-sub {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.8;
}

/* ─────────  Connected Tools ───────── */

.detail-panel .connections-section {
  margin-top: 24px;
  border-top: 1px solid var(--line-2);
  padding-top: 20px;
}
.detail-panel .connections-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--paper-3);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.detail-panel .connections-title::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--violet);
  flex-shrink: 0;
}
.detail-panel .conn-tool-btn {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border: 1px solid rgba(128, 96, 168, 0.3);
  background: transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  margin-bottom: 6px;
}
.detail-panel .conn-tool-btn:last-child { margin-bottom: 0; }
.detail-panel .conn-tool-btn:hover {
  background: rgba(128, 96, 168, 0.08);
  border-color: var(--violet);
}
.detail-panel .conn-name {
  font-family: var(--serif);
  font-style: italic;
  font-size: 17px;
  color: var(--paper);
  letter-spacing: 0;
  line-height: 1.2;
}
.detail-panel .conn-sub {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--violet);
  opacity: 0.8;
}

/* ─────────  Links ───────── */

.detail-panel .links-section {
  margin-top: 24px;
  border-top: 1px solid var(--line-2);
  padding-top: 20px;
}
.detail-panel .links-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--paper-3);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.detail-panel .links-title::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}
.detail-panel .links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.detail-panel .detail-link {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gold);
  border: 1px solid rgba(201, 165, 68, 0.3);
  padding: 5px 10px;
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
}
.detail-panel .detail-link:hover {
  background: rgba(201, 165, 68, 0.1);
  border-color: var(--gold);
  color: var(--paper);
}

/* ─────────  Submodels ───────── */

.detail-panel .submodels-section {
  margin-top: 28px;
  border-top: 1px solid var(--line-2);
  padding-top: 22px;
}
.detail-panel .submodels-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.detail-panel .submodels-title::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}
.submodels-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
}
.submodels-table th {
  text-align: left;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line-2);
  padding: 0 8px 7px 0;
  white-space: nowrap;
}
.submodels-table td {
  padding: 7px 8px 7px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  color: var(--paper-2);
  vertical-align: middle;
  line-height: 1.4;
}
.submodels-table tr:last-child td { border-bottom: none; }
.submodels-table td:first-child { color: var(--paper); font-weight: 500; }
.submodels-table .sub-link {
  color: var(--gold);
  text-decoration: none;
  font-size: 9px;
  letter-spacing: 0.08em;
}
.submodels-table .sub-link:hover { text-decoration: underline; }
.submodels-table .sub-links { display: flex; gap: 8px; flex-wrap: wrap; }

/* ─────────  Colophon ───────── */

.colophon {
  padding: 64px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--paper-3);
  line-height: 1.6;
}
.colophon h4 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin-bottom: 14px;
}
.colophon .ornament {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--paper-2);
  text-transform: none;
  letter-spacing: 0;
}

/* ─────────  Reveal animation ───────── */

.reveal { opacity: 0; transform: translateY(8px); animation: reveal 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.reveal-1 { animation-delay: 0.05s; }
.reveal-2 { animation-delay: 0.18s; }
.reveal-3 { animation-delay: 0.32s; }
.reveal-4 { animation-delay: 0.46s; }

@keyframes reveal {
  to { opacity: 1; transform: translateY(0); }
}

/* ─────────  Edition switcher ───────── */

.editions-block { margin-top: auto; padding-top: 32px; border-top: 1px solid var(--line); }

.edition-switcher { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }

.edition-opt {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-3);
  width: 100%;
}
.edition-opt:hover { color: var(--paper); border-color: var(--paper-3); background: rgba(237,228,204,0.03); }
.edition-opt.is-active {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(201, 165, 68, 0.06);
}
.edition-opt .ed-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--muted); flex-shrink: 0; margin-top: 1px;
  transition: background 0.15s;
}
.edition-opt.is-active .ed-dot { background: var(--gold); }
.edition-opt.live .ed-dot { background: var(--verdigris); }
.edition-opt.live.is-active { color: var(--verdigris); border-color: var(--verdigris); background: rgba(74,132,116,0.06); }
.edition-opt .ed-name { flex: 1; }
.edition-opt .ed-count { color: var(--muted); font-size: 9px; }

/* archived edition banner — appears below topbar when a past edition is loaded */
.archive-banner {
  display: none;
  position: sticky;
  top: 66px;   /* sits flush under the fixed topbar */
  z-index: 39; /* just below topbar (z-index: 40) */
  padding: 12px 48px;
  background: rgba(201, 165, 68, 0.10);
  border-bottom: 1px solid rgba(201, 165, 68, 0.35);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  display: none;
  align-items: center;
  gap: 16px;
}
.archive-banner.is-visible { display: flex; }
.archive-banner .ed-label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--paper);
}
.archive-banner .return-live {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: none;
  border: 1px solid rgba(201, 165, 68, 0.5);
  color: var(--gold);
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.archive-banner .return-live:hover { background: var(--gold); color: var(--on-accent); }

/* ─────────  Editions modal ───────── */

.editions-modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--scrim);
  z-index: 200;
  place-items: center;
}
.editions-modal-backdrop.is-open {
  display: grid;
}
.editions-modal {
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  width: min(540px, 92vw);
  max-height: 80vh;
  display: flex;
  flex-direction: column;
}
.editions-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-3);
  flex-shrink: 0;
}
.editions-modal__close {
  background: none;
  border: 1px solid var(--line-2);
  color: var(--paper-3);
  width: 28px;
  height: 28px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: all 0.15s;
}
.editions-modal__close:hover { color: var(--paper); border-color: var(--paper); }
.editions-modal__body {
  overflow-y: auto;
  flex: 1;
  padding: 8px 0;
}
.em-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background 0.15s;
}
.em-item:last-child { border-bottom: none; }
.em-item:hover { background: rgba(237, 228, 204, 0.03); }
.em-item.is-active { background: rgba(201, 165, 68, 0.06); }
.em-item__label {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--paper);
  display: flex;
  align-items: center;
  gap: 10px;
}
.em-item.is-active .em-item__label { color: var(--gold); }
.em-item__label .em-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--muted); flex-shrink: 0;
}
.em-item.is-active .em-dot { background: var(--gold); }
.em-item.em-live .em-dot { background: var(--verdigris); }
.em-item.em-live.is-active .em-item__label { color: var(--verdigris); }
.em-item.em-live.is-active .em-dot { background: var(--verdigris); }
.em-item__meta {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  display: flex;
  gap: 16px;
}
.em-item__note {
  font-family: var(--serif);
  font-style: italic;
  font-size: 12px;
  color: var(--paper-3);
  line-height: 1.5;
}

/* ─────────  Spiderfy ───────── */

.spider-backdrop {
  fill: var(--surface-glass-soft);
  stroke: rgba(201, 165, 68, 0.28);
  stroke-width: 1;
}
.spider-center {
  fill: var(--paper-3);
  pointer-events: none;
}
.spider-leg {
  stroke: var(--paper-3);
  stroke-width: 1;
  stroke-opacity: 0.4;
  stroke-dasharray: 3 3;
  pointer-events: none;
}
.spider-tip-ring {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1;
  opacity: 0.55;
  transition: opacity 0.15s;
}
.spider-tip-dot {
  fill: var(--gold);
  stroke: var(--bg);
  stroke-width: 1.5;
  transition: fill 0.15s;
}
.spider-tip-dot.type-open-weight { fill: var(--verdigris); }
.spider-kind-model:hover .spider-tip-ring  { opacity: 1; }
.spider-kind-model:hover .spider-tip-dot   { fill: var(--paper); }

.spider-tip-dring {
  fill: none;
  stroke: var(--violet);
  stroke-width: 1;
  opacity: 0.5;
  transition: opacity 0.15s;
}
.spider-tip-diamond {
  fill: var(--violet);
  stroke: var(--bg);
  stroke-width: 1.5;
  transition: fill 0.15s;
}
.spider-kind-tool:hover .spider-tip-dring   { opacity: 1; }
.spider-kind-tool:hover .spider-tip-diamond { fill: var(--paper); }

.spider-tip-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  fill: var(--paper-2);
  text-transform: uppercase;
  pointer-events: none;
}

/* ─────────  Responsive ───────── */

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding: 64px 28px 40px; }
  .hero::before { display: none; }
  .atlas { grid-template-columns: 1fr; }
  .atlas__aside { border-right: none; border-bottom: 1px solid var(--line); padding: 32px 28px; }
  .topbar { padding: 18px 28px; }
  .catalogue { padding: 48px 28px 32px; }
  .colophon { grid-template-columns: 1fr; gap: 32px; padding: 48px 28px; }
  .catalogue__table .hide-sm { display: none; }
  .catalogue h2 { font-size: 38px; }
}

/* ─────────  Mobile navigation drawer ───────── */

.nav-hamburger {
  display: none;
  background: none;
  border: 1px solid var(--line-2);
  color: var(--paper-3);
  width: 32px;
  height: 26px;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  padding: 0;
  flex-shrink: 0;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.nav-hamburger svg { width: 15px; height: 15px; display: block; }
.nav-hamburger:hover { color: var(--paper); border-color: var(--paper-3); }
.nav-hamburger.is-open { color: var(--gold); border-color: rgba(201, 165, 68, 0.5); }

.mobile-nav {
  display: none;
  position: sticky;
  top: 56px;
  z-index: 38;
  background: var(--surface-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-2);
  flex-direction: column;
}
.mobile-nav.is-open { display: flex; }

.mobile-nav__link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-3);
  padding: 14px 20px;
  border: none;
  border-bottom: 1px solid var(--line);
  background: none;
  text-align: left;
  cursor: pointer;
  text-decoration: none;
  display: block;
  width: 100%;
  transition: color 0.15s, background 0.15s;
}
.mobile-nav__link:last-child { border-bottom: none; }
.mobile-nav__link:hover { color: var(--gold); background: rgba(201, 165, 68, 0.04); }

/* ─────────  Small screens (≤ 640px) ───────── */

@media (max-width: 640px) {
  /* Topbar: hide desktop nav, show hamburger */
  .topbar { padding: 13px 20px; }
  .topbar nav { gap: 12px; }
  .topbar nav a,
  .topbar .nav-btn { display: none; }
  .nav-hamburger { display: flex; }

  /* Mobile nav drawer position below topbar */
  .mobile-nav { top: 52px; }

  /* Archive banner */
  .archive-banner { top: 52px; padding: 10px 20px; }

  /* Hero */
  .hero { padding: 36px 20px 24px; }
  .hero h1 { font-size: clamp(46px, 13vw, 72px); }

  /* Atlas aside */
  .atlas__aside { padding: 24px 20px; gap: 24px; }

  /* Stats */
  .stat .num { font-size: 44px; }

  /* Catalogue */
  .catalogue { padding: 32px 20px 20px; }
  .catalogue header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 20px;
  }
  .cat-tabs { margin-left: 0; align-self: auto; }
  .catalogue h2 { font-size: 30px; }
  .catalogue header .count { order: 3; }

  /* Filterbar */
  .cat-filterbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .cat-filterbar .atlas-search-wrap { width: 100%; flex: none; }

  /* Colophon */
  .colophon { padding: 32px 20px; }

  /* Detail panel: full-width slide-up from right */
  .detail-panel {
    width: 100vw;
    padding: 44px 22px 32px;
    border-left: none;
    border-top: 1px solid var(--gold);
  }
  .detail-panel h3 { font-size: 42px; }
}

::selection { background: var(--gold); color: var(--on-accent); }

/* ── Loading overlay ── */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}
.loading-overlay.is-hidden {
  opacity: 0;
  pointer-events: none;
}
.loading-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(201, 165, 68, 0.2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.loading-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.7;
  margin: 0;
}

/* ─────────  Scrollbar ───────── */

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-corner { background: transparent; }
::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 99px;
  transition: background 0.4s ease;
}
html.is-scrolling ::-webkit-scrollbar-thumb { background: var(--muted); }
html.is-scrolling ::-webkit-scrollbar-thumb:hover { background: var(--paper-3); }

/* Firefox */
* { scrollbar-width: thin; scrollbar-color: transparent transparent; }
html.is-scrolling * { scrollbar-color: var(--muted) transparent; }

/* ─────────  Pagination ───────── */

.catalogue-pagination {
  padding: 24px 0 8px;
}
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
}
.page-btn {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  min-width: 30px;
  height: 30px;
  padding: 0 8px;
  background: transparent;
  border: 1px solid var(--line-2);
  color: var(--paper-3);
  cursor: pointer;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}
.page-btn:hover:not([disabled]) {
  color: var(--paper);
  border-color: var(--paper-3);
}
.page-btn.is-active {
  color: var(--on-accent);
  background: var(--gold);
  border-color: var(--gold);
}
.tools-mode .page-btn.is-active {
  background: var(--violet);
  border-color: var(--violet);
}
.page-btn[disabled] {
  opacity: 0.3;
  cursor: default;
}
.page-arrow {
  font-size: 13px;
  letter-spacing: 0;
}
.page-ellipsis {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  padding: 0 4px;
  line-height: 30px;
}
.page-info {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-left: 10px;
  text-transform: uppercase;
}

/* ─────────  Cluster panel (many overlapping markers) ───────── */

.cluster-panel {
  position: absolute;
  z-index: 20;
  width: 292px;
  max-height: 400px;
  display: flex;
  flex-direction: column;
  background: var(--bg-2);
  border: 1px solid var(--gold);
  box-shadow: 8px 8px 0 rgba(201, 165, 68, 0.12);
  pointer-events: all;
}

.cluster-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 14px;
  border-bottom: 1px solid var(--line-2);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  flex-shrink: 0;
}

.cluster-panel__close {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1;
  padding: 0 2px;
  transition: color 0.15s;
}
.cluster-panel__close:hover { color: var(--paper); }

.cluster-panel__list {
  overflow-y: auto;
  flex: 1;
  overscroll-behavior: contain;
}

.cluster-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 10px;
  align-items: center;
  padding: 9px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  background: transparent;
  text-align: left;
  width: 100%;
  transition: background 0.12s;
}
.cluster-item:last-child { border-bottom: none; }
.cluster-item:hover { background: rgba(201, 165, 68, 0.05); }

.cluster-item__name {
  grid-column: 1;
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--paper);
  letter-spacing: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cluster-item__org {
  grid-column: 1;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cluster-item__tag {
  grid-row: 1 / span 2;
  grid-column: 2;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  white-space: nowrap;
  color: var(--paper-3);
}
.cluster-item__tag.proprietary { color: var(--gold);      border-color: rgba(201, 165, 68, 0.45); }
.cluster-item__tag.open-weight { color: var(--verdigris); border-color: rgba(74, 132, 116, 0.55); }
.cluster-item__tag.tool        { color: var(--violet);     border-color: rgba(128, 96, 168, 0.5); }