body {
  min-height: 100vh;
  background: #f1f5f9;
}

.ontology-shell {
  width: min(1960px, 96vw);
  max-width: none;
  padding-bottom: 48px;
}

.ontology-hero {
  margin-bottom: 24px;
}

.ontology-summary {
  flex: 0 0 380px;
}

.ontology-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.ontology-stat-grid div {
  border: 1px solid #d7ebe8;
  border-radius: 10px;
  padding: 10px;
  background: #fff;
}

.ontology-stat-grid strong,
.ontology-stat-grid span {
  display: block;
}

.ontology-stat-grid strong {
  color: var(--ku-primary);
  font-family: var(--font-scoreboard-display);
  font-size: 1.35rem;
  line-height: 1;
}

.ontology-stat-grid span {
  margin-top: 4px;
  color: #526074;
  font-size: 0.78rem;
  font-weight: 800;
}

.ontology-data-source {
  margin: 12px 0 0;
  color: #728294;
  font-size: 0.78rem;
  font-weight: 800;
}

.ontology-toolbar,
.ontology-tree-card,
.ontology-volume-card {
  border: 1px solid #d7ebe8;
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fcfb 100%);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.06);
}

.ontology-toolbar {
  display: grid;
  grid-template-columns: auto minmax(240px, 1fr) auto;
  align-items: end;
  gap: 12px;
  margin-bottom: 16px;
  padding: 16px;
}

.ontology-filter-label {
  color: var(--ku-primary-text);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#ontology-filter-input {
  width: 100%;
  min-width: 0;
  height: 42px;
  border: 1px solid #cdd8e4;
  border-radius: 10px;
  padding: 0 12px;
  color: #122033;
  font: inherit;
}

.ontology-toolbar-actions {
  display: flex;
  gap: 8px;
}

.ontology-toolbar-actions button {
  height: 42px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  padding: 0 12px;
  background: #fff;
  color: #374151;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.ontology-toolbar-actions button:hover {
  border-color: var(--ku-primary-border);
  background: var(--ku-primary-soft);
  color: var(--ku-primary-text);
}

.ontology-tree-card,
.ontology-volume-card {
  padding: 18px;
}

.ontology-volume-card {
  margin-bottom: 16px;
}

.ontology-tree-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.ontology-tree-header h2 {
  margin: 0;
  color: #173042;
  font-size: 1.15rem;
}

.ontology-tree-header span {
  color: #728294;
  font-size: 0.82rem;
  font-weight: 800;
}

.ontology-volume-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.ontology-volume-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #526074;
  font-size: 0.78rem;
  font-weight: 800;
}

.ontology-volume-legend i {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.legend-person,
.volume-person {
  background: #006b3f;
}

.legend-project,
.volume-project {
  background: #1d4ed8;
}

.legend-publication,
.volume-publication {
  background: #b45309;
}

.legend-course,
.volume-course {
  background: #7c3aed;
}

.ontology-tree-legend {
  margin: -2px 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid #eef2f6;
}

.ontology-map-picker {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.ontology-map-tab {
  display: grid;
  min-width: 0;
  gap: 6px;
  border: 1px solid #d7e2ec;
  border-radius: 12px;
  padding: 10px;
  background: #fff;
  color: #173042;
  text-align: left;
  cursor: pointer;
}

.ontology-map-tab:hover,
.ontology-map-tab.is-active {
  border-color: var(--ku-primary-border);
  box-shadow: 0 0 0 3px var(--ku-focus-ring);
}

.ontology-map-tab span:first-child {
  font-size: 0.8rem;
  font-weight: 900;
}

.ontology-map-tab strong {
  color: #526074;
  font-family: var(--font-scoreboard-display);
  font-size: 1.08rem;
  line-height: 1;
}

.ontology-map-tab em {
  margin-top: -4px;
  color: #728294;
  font-size: 0.68rem;
  font-style: normal;
  font-weight: 800;
}

.ontology-map-thumb {
  position: relative;
  display: block;
  width: 80%;
  justify-self: center;
  min-width: 0;
  aspect-ratio: 1200 / 680;
  height: auto;
  border: 1px solid #e1e8f0;
  border-radius: 8px;
  overflow: hidden;
  background: #f8fafc;
}

.ontology-map-thumb svg {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  background: #f8fafc;
}

.ontology-mini-volume i {
  display: block;
  width: var(--segment-share);
  min-width: 2px;
}

.ontology-treemap {
  position: relative;
  aspect-ratio: 1200 / 680;
  height: auto;
  border: 1px solid #e1e8f0;
  border-radius: 14px;
  overflow: hidden;
  background: #f8fafc;
}

.ontology-treemap svg {
  display: block;
  width: 100%;
  height: 100%;
}

.treemap-tile {
  cursor: pointer;
}

.treemap-group rect {
  fill: rgba(255, 255, 255, 0.2);
  stroke: rgba(15, 23, 42, 0.18);
  stroke-width: 1.5;
}

.treemap-group-label {
  fill: #173042;
  font-size: 8px;
  font-weight: 800;
  opacity: 0.78;
  pointer-events: none;
}

.treemap-subgroup-label {
  font-size: 7px;
  font-weight: 800;
  opacity: 0.72;
  pointer-events: none;
}

.treemap-tile rect {
  stroke: rgba(255, 255, 255, 0.88);
  stroke-width: 2;
  transition: filter 0.15s ease, stroke 0.15s ease;
}

.treemap-tile:hover rect,
.treemap-tile:focus rect {
  filter: brightness(1.06);
  stroke: #052e2b;
}

.treemap-label {
  fill: #fff;
  font-size: 8px;
  font-weight: 800;
  pointer-events: none;
}

.treemap-count {
  fill: rgba(255, 255, 255, 0.82);
  font-size: 7px;
  font-weight: 700;
  pointer-events: none;
}

.treemap-strip {
  pointer-events: none;
}

.ontology-treemap-tooltip {
  position: fixed;
  z-index: 20;
  max-width: 260px;
  border: 1px solid #cdd8e4;
  border-radius: 10px;
  padding: 9px 10px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.14);
  color: #122033;
  font-size: 0.8rem;
  font-weight: 800;
  pointer-events: none;
}

.ontology-treemap-tooltip strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ku-primary-text);
}

.ontology-treemap-tooltip .tooltip-path {
  display: block;
  margin: -1px 0 5px;
  color: #64748b;
  font-size: 0.7rem;
  line-height: 1.25;
}

.ontology-treemap-note {
  margin: 10px 0 0;
  color: #728294;
  font-size: 0.8rem;
  font-weight: 800;
}

.ontology-tree-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ontology-tree-root {
  gap: 10px;
}

.ontology-tree-card {
  border: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
}

.ontology-tree-board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
  gap: 14px;
  align-items: start;
}

.ontology-root-card {
  min-width: 0;
  border: 1px solid #d7e2ec;
  border-radius: 14px;
  padding: 12px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fcfb 100%);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.055);
}

.ontology-root-card[hidden] {
  display: none;
}

.ontology-root-card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  padding-bottom: 9px;
  border-bottom: 1px solid #eef2f6;
}

.ontology-root-card-header h3 {
  margin: 0;
  color: #173042;
  font-size: 0.98rem;
  line-height: 1.2;
}

.ontology-root-card-header span {
  flex: 0 0 auto;
  color: #728294;
  font-size: 0.72rem;
  font-weight: 800;
}

.ontology-root-card-life {
  border-top: 3px solid #1f77b4;
}

.ontology-root-card-physical {
  border-top: 3px solid #d95f02;
}

.ontology-root-card-health {
  border-top: 3px solid #cc4c7a;
}

.ontology-root-card-social {
  border-top: 3px solid #2ca25f;
}

.ontology-root-card-others {
  border-top: 3px solid #64748b;
}

.ontology-node[hidden] {
  display: none;
}

.ontology-details {
  border: 1px solid #e1e8f0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.84);
  overflow: hidden;
}

.ontology-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  cursor: pointer;
}

.ontology-root-card .ontology-details summary {
  align-items: flex-start;
}

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

.ontology-details summary::before {
  content: "+";
  display: inline-grid;
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 999px;
  background: var(--ku-primary-soft);
  color: var(--ku-primary-text);
  font-weight: 900;
}

.ontology-details[open] > summary::before {
  content: "-";
}

.ontology-node-main {
  display: grid;
  min-width: 0;
  flex: 1 1 auto;
  gap: 2px;
}

.ontology-node-label {
  color: #122033;
  font-weight: 900;
}

.ontology-node-id,
.ontology-node-count,
.ontology-related-label {
  color: #728294;
  font-size: 0.75rem;
  font-weight: 800;
}

.ontology-node-count {
  flex: 0 1 auto;
  min-width: fit-content;
  text-align: right;
}

.ontology-node-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.ontology-mini-volume {
  display: flex;
  width: min(240px, 100%);
  height: 8px;
  margin-top: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: #eef2f6;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
}

.ontology-node-body {
  display: grid;
  gap: 10px;
  border-top: 1px solid #eef2f6;
  padding: 10px 14px 14px 46px;
}

.ontology-aliases,
.ontology-related {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ontology-aliases span,
.ontology-related a,
.ontology-leaf-search {
  min-height: 26px;
  border: 1px solid #cdd8e4;
  border-radius: 999px;
  padding: 3px 9px;
  background: #fff;
  color: #294463;
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
}

.ontology-leaf-search {
  justify-self: start;
  border-color: var(--ku-primary-border);
  background: var(--ku-primary-soft);
  color: var(--ku-primary-text);
}

.ontology-related a:hover,
.ontology-leaf-search:hover {
  border-color: var(--ku-primary-border);
  background: var(--ku-primary-soft);
  color: var(--ku-primary-text);
}

.ontology-node-body > .ontology-tree-list {
  padding-left: 0;
}

.ontology-node.is-match > .ontology-details {
  border-color: var(--ku-primary-border);
  box-shadow: 0 0 0 3px var(--ku-focus-ring);
}

@media (max-width: 980px) {
  .ontology-hero {
    flex-direction: column;
  }

  .ontology-summary {
    flex: 1 1 auto;
    width: 100%;
  }

  .ontology-toolbar {
    grid-template-columns: 1fr;
  }

  .ontology-toolbar-actions {
    flex-wrap: wrap;
  }
}

@media (min-width: 1800px) {
  .ontology-shell {
    width: min(3400px, calc(100vw - 64px));
  }

  .ontology-volume-card {
    display: grid;
    grid-template-columns: minmax(260px, 0.22fr) minmax(0, 1fr);
    grid-template-areas:
      "header header"
      "legend map"
      "picker map"
      "note note";
    align-items: start;
    column-gap: 18px;
  }

  .ontology-volume-card .ontology-tree-header {
    grid-area: header;
  }

  .ontology-volume-card .ontology-volume-legend {
    grid-area: legend;
    align-content: start;
  }

  .ontology-volume-card .ontology-map-picker {
    grid-area: picker;
    grid-template-columns: 1fr;
    margin-bottom: 0;
  }

  .ontology-volume-card .ontology-treemap-main {
    grid-area: map;
  }

  .ontology-volume-card .ontology-treemap-note {
    grid-area: note;
  }
}

@media (max-width: 640px) {
  .ontology-shell {
    width: min(100%, calc(100vw - 16px));
    padding-top: 8px;
  }

  .ontology-hero {
    gap: 12px;
    margin-bottom: 14px;
    padding: 14px 16px 16px;
  }

  .ontology-hero .hero-topbar {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: start;
    justify-content: stretch;
    gap: 8px;
    margin-bottom: 0;
  }

  .ontology-hero .site-nav {
    order: 0;
    grid-column: 1;
    justify-self: start;
  }

  .ontology-hero .lang-toggle {
    grid-column: 3;
    justify-self: end;
    padding-top: 4px;
  }

  .ontology-hero .hero-copy {
    flex: 0 1 auto;
    gap: 0;
  }

  .ontology-hero .ontology-summary {
    flex: 0 1 auto;
  }

  .ontology-hero .hero-kicker {
    margin-bottom: 8px;
    font-size: 0.68rem;
    letter-spacing: 0.08em;
  }

  .ontology-hero h1 {
    margin-bottom: 6px;
  }

  .ontology-hero .hero-title-main {
    font-size: 1.55rem;
  }

  .ontology-hero .hero-title-ku {
    font-size: 1.7rem;
  }

  .ontology-hero .about-subtitle {
    font-size: 0.9rem;
    line-height: 1.45;
  }

  .ontology-summary {
    padding: 14px 14px 14px 18px;
  }

  .ontology-summary h2 {
    margin: 6px 0 8px;
    font-size: 1.05rem;
  }

  .ontology-stat-grid {
    gap: 8px;
    margin-top: 10px;
  }

  .ontology-stat-grid div {
    padding: 8px;
  }

  .ontology-tree-card,
  .ontology-toolbar,
  .ontology-volume-card {
    border-radius: 14px;
    padding: 14px;
  }

  .ontology-tree-card {
    border-radius: 0;
    padding: 0;
  }

  .ontology-tree-board {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .ontology-tree-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .ontology-node-body {
    padding-left: 18px;
  }

  .ontology-volume-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

  .ontology-map-tab {
    gap: 5px;
    padding: 9px;
  }

  .ontology-map-tab strong {
    font-size: 0.98rem;
  }

  .ontology-map-thumb {
    width: 100%;
    border-radius: 7px;
  }

  .ontology-treemap-main,
  .ontology-treemap-note {
    display: none;
  }
}