:root {
  color-scheme: light;
  --paper: #f6f3eb;
  --paper-deep: #ece7dc;
  --surface: #fffefa;
  --surface-strong: #ffffff;
  --ink: #18202a;
  --ink-soft: #424a55;
  --muted: #747a82;
  --line: #d8d2c6;
  --line-strong: #beb5a6;
  --gold-900: #755214;
  --gold-700: #a8751b;
  --gold-500: #d9ad4a;
  --gold-300: #efda9c;
  --gold-100: #fbf3d8;
  --blue: #2f5f79;
  --blue-soft: #e8f1f4;
  --shadow: 0 18px 55px rgba(39, 35, 28, 0.09);
  --left-width: 75%;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
}

button,
select,
input {
  font: inherit;
}

button,
a,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

.app-shell {
  display: flex;
  min-width: 760px;
  height: 100%;
  flex-direction: column;
}

.topbar {
  z-index: 20;
  display: grid;
  min-height: 64px;
  grid-template-columns: minmax(230px, 0.75fr) minmax(520px, 2fr) minmax(280px, 0.85fr);
  align-items: stretch;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 254, 250, 0.96);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.85) inset;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 11px;
  background: var(--ink);
  color: #fffaf0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  overflow: hidden;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-copy small {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.primary-nav {
  display: flex;
  min-width: 0;
  align-items: stretch;
  justify-content: center;
  gap: 2px;
}

.nav-tab {
  position: relative;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 4px 14px 0;
  transition: color 160ms ease, background 160ms ease;
}

.nav-tab::after {
  position: absolute;
  right: 14px;
  bottom: 0;
  left: 14px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--gold-700);
  content: "";
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity 160ms ease, transform 160ms ease;
}

.nav-tab:hover {
  background: #faf8f2;
  color: var(--ink-soft);
}

.nav-tab.is-active {
  color: var(--ink);
}

.nav-tab.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
  padding-right: 24px;
}

.contact-open {
  position: relative;
  min-height: 36px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  padding: 0 10px;
}

.contact-open:hover,
.contact-open.is-active {
  background: #faf8f2;
  color: var(--ink);
}

.contact-open.is-active::after {
  position: absolute;
  right: 10px;
  bottom: -14px;
  left: 10px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--gold-700);
  content: "";
}

.paper-search-open {
  display: inline-flex;
  min-width: 172px;
  height: 40px;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  padding: 0 11px 0 13px;
  white-space: nowrap;
}

.paper-search-open:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.paper-search-open > span:first-child {
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
}

.paper-search-open kbd {
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--paper);
  color: var(--muted);
  font-family: inherit;
  font-size: 9px;
  padding: 2px 5px;
}

.language-switch {
  display: flex;
  align-self: center;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
}

.language-option {
  min-width: 45px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  padding: 7px 9px;
}

.language-option.is-active {
  background: var(--surface-strong);
  box-shadow: 0 1px 5px rgba(34, 31, 25, 0.12);
  color: var(--ink);
}

.paper-search-backdrop {
  position: fixed;
  z-index: 90;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  inset: 0;
  background: rgba(24, 32, 42, 0.28);
  backdrop-filter: blur(3px);
  padding: 88px 20px 24px;
}

.paper-search-dialog {
  display: flex;
  width: min(720px, 100%);
  max-height: min(720px, calc(100vh - 112px));
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: 0 28px 90px rgba(24, 32, 42, 0.25);
  flex-direction: column;
  padding: 22px 24px 18px;
}

.paper-search-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.paper-search-heading p {
  margin: 0 0 4px;
  color: var(--gold-700);
  font-size: 9px;
  font-weight: 850;
  letter-spacing: 0.14em;
}

.paper-search-heading h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  font-weight: 600;
}

#paper-search-close {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 21px;
  line-height: 1;
}

#paper-search-close:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.paper-search-field {
  display: flex;
  min-height: 48px;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: #fff;
  padding: 0 14px;
}

.paper-search-field:focus-within {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(47, 95, 121, 0.1);
}

.paper-search-field > span {
  color: var(--muted);
  font-size: 22px;
}

.paper-search-field input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
}

.paper-search-field input::placeholder {
  color: #979b9f;
}

.paper-search-status {
  min-height: 34px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 650;
  padding: 11px 2px 8px;
}

.paper-search-results {
  min-height: 0;
  overflow: auto;
  border-top: 1px solid var(--line);
}

.paper-search-result {
  display: block;
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  padding: 14px 4px;
  text-align: left;
}

.paper-search-result:hover,
.paper-search-result:focus-visible {
  outline: 0;
  background: #faf7ee;
}

.paper-search-result-title {
  display: block;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.35;
}

.paper-search-result:hover .paper-search-result-title,
.paper-search-result:focus-visible .paper-search-result-title {
  color: var(--blue);
}

.paper-search-result-authors,
.paper-search-result-meta {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

.paper-search-result-meta {
  color: var(--gold-900);
  font-weight: 700;
}

.paper-search-hint,
.paper-search-empty {
  display: flex;
  min-height: 120px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--muted);
  flex-direction: column;
  font-size: 12px;
  line-height: 1.5;
  padding: 24px;
  text-align: center;
}

.paper-search-hint strong {
  color: var(--ink-soft);
  font-size: 11px;
}

.return-context {
  display: flex;
  min-height: 36px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: #fbfaf6;
  padding: 0 24px;
}

.return-button,
.paper-back {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  border: 0;
  background: transparent;
  color: var(--blue);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
  padding: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.graph-view {
  display: flex;
  min-height: 0;
  flex: 1;
}

.visual-pane {
  display: flex;
  min-width: 360px;
  width: var(--left-width);
  min-height: 0;
  flex-direction: column;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.78), transparent 42%),
    var(--paper);
}

.visual-toolbar {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding: 9px 18px 8px 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--gold-700);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.visual-toolbar h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.tree-tools {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.zoom-controls {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  box-shadow: 0 2px 8px rgba(30, 27, 22, 0.05);
}

.zoom-controls button {
  min-width: 34px;
  height: 34px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font-size: 17px;
  padding: 0 9px;
}

.zoom-controls button:last-child {
  border-right: 0;
}

.zoom-controls button:hover {
  background: var(--gold-100);
}

#zoom-reset {
  min-width: 58px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
}

.model-family-control {
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 4px 8px;
}

.model-family-control > label:first-child {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.model-family-control select {
  min-width: 160px;
  height: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  outline: none;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 12px;
  padding: 0 30px 0 10px;
}

.secondary-toggle {
  display: flex;
  grid-column: 2;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  font-size: 10px;
}

.secondary-toggle input {
  accent-color: var(--gold-700);
}

.author-role-control {
  display: flex;
  height: 34px;
  align-items: center;
  gap: 9px;
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  padding: 0 10px;
}

.author-role-control legend {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.author-role-control label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 10px;
  font-weight: 650;
  white-space: nowrap;
}

.author-role-control input {
  width: 13px;
  height: 13px;
  margin: 0;
  accent-color: var(--gold-700);
}

.author-visible-count {
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 9px;
  font-variant-numeric: tabular-nums;
  padding-left: 8px;
  white-space: nowrap;
}

.canvas-scroll {
  position: relative;
  min-height: 0;
  flex: 1;
  overflow: auto;
  scrollbar-color: #b6ad9e #ece7dc;
  scrollbar-width: thin;
}

.canvas-scroll::-webkit-scrollbar,
.detail-content::-webkit-scrollbar,
.paper-view::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}

.canvas-scroll::-webkit-scrollbar-track,
.detail-content::-webkit-scrollbar-track,
.paper-view::-webkit-scrollbar-track {
  background: var(--paper-deep);
}

.canvas-scroll::-webkit-scrollbar-thumb,
.detail-content::-webkit-scrollbar-thumb,
.paper-view::-webkit-scrollbar-thumb {
  border: 3px solid var(--paper-deep);
  border-radius: 20px;
  background: #aaa293;
}

.canvas-stage {
  min-width: 100%;
  min-height: 100%;
}

#tree-svg {
  display: block;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.tree-edge {
  fill: none;
  stroke: #b58a34;
  stroke-linecap: round;
  stroke-width: 1.7;
}

.tree-node {
  cursor: pointer;
}

.tree-node rect.node-box {
  fill: var(--gold-100);
  stroke: #b28630;
  stroke-width: 1.4;
  transition: fill 120ms ease, stroke 120ms ease;
}

.tree-node.depth-0 rect.node-box {
  fill: #a87d27;
  stroke: #7b5716;
}

.tree-node.depth-1 rect.node-box {
  fill: #f3d97f;
}

.tree-node:hover rect.node-box {
  fill: #fff7dc;
  stroke: #7e5a1a;
}

.tree-node.depth-0:hover rect.node-box {
  fill: #b88a2d;
}

.tree-node.is-selected rect.node-box {
  stroke: var(--blue);
  stroke-width: 3;
  filter: drop-shadow(0 5px 8px rgba(47, 95, 121, 0.16));
}

.tree-node text.node-label {
  fill: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  font-weight: 600;
  pointer-events: none;
}

.tree-node.depth-0 text.node-label {
  fill: #fffdf7;
  font-size: 17px;
  font-weight: 700;
}

.node-count-badge {
  fill: #fffdf8;
  stroke: #cab16f;
  stroke-width: 1;
}

.node-count-text {
  fill: #72571f;
  font-size: 9px;
  font-weight: 800;
  pointer-events: none;
}

.collapse-control {
  cursor: pointer;
}

.collapse-control rect {
  fill: #fffefa;
  stroke: #987020;
  stroke-width: 1.2;
}

.collapse-control:hover rect {
  fill: #fff4cb;
}

.collapse-control text {
  fill: #725116;
  font-size: 13px;
  font-weight: 800;
  pointer-events: none;
}

.author-edge {
  stroke: #a99f90;
  opacity: 0.18;
  vector-effect: non-scaling-stroke;
}

.author-edge.is-muted {
  opacity: 0.045;
}

.author-edge.is-related {
  stroke: var(--gold-700);
  opacity: 0.8;
}

.author-node {
  cursor: pointer;
}

.author-node circle {
  fill: #d7b85e;
  stroke: #84631e;
  stroke-width: 1.4;
  vector-effect: non-scaling-stroke;
  transition: fill 120ms ease, opacity 120ms ease, stroke 120ms ease;
}

.author-node.is-muted {
  opacity: 0.2;
}

.author-node.is-related,
.author-node.is-selected {
  opacity: 1;
}

.author-node.is-related circle {
  fill: #f0d78f;
}

.author-node.is-selected circle {
  fill: var(--blue);
  stroke: #fff;
  stroke-width: 3;
  filter: drop-shadow(0 4px 7px rgba(47, 95, 121, 0.3));
}

.author-node:hover circle {
  fill: #fff3c7;
  stroke: var(--blue);
  opacity: 1;
}

.author-label {
  fill: var(--ink);
  font-size: 13px;
  font-weight: 700;
  paint-order: stroke;
  pointer-events: none;
  stroke: var(--paper);
  stroke-linejoin: round;
  stroke-width: 4px;
}

.author-node.is-selected .author-label {
  fill: var(--blue);
  font-size: 15px;
  font-weight: 800;
}

.rq-legend-label {
  fill: var(--ink-soft);
  font-size: 16px;
  font-weight: 650;
}

.rq-legend-heading {
  fill: var(--muted);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rq-axis-line,
.rq-family-rule,
.rq-year-tick,
.rq-quarter-tick {
  stroke: var(--line);
  vector-effect: non-scaling-stroke;
}

.rq-axis-line {
  stroke-width: 1.3;
}

.rq-year-tick {
  stroke: var(--line-strong);
  stroke-width: 1.2;
}

.rq-quarter-tick {
  opacity: 0.72;
  stroke-width: 1;
}

.rq-axis-title {
  fill: var(--muted);
  font-size: 17px;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.rq-year-label {
  fill: var(--muted);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
}

.rq-family {
  cursor: pointer;
  outline: none;
  transition: opacity 120ms ease;
}

.rq-family-rule {
  opacity: 0.72;
}

.rq-family-hitbox {
  fill: transparent;
  stroke: transparent;
  transition: fill 120ms ease, stroke 120ms ease;
}

.rq-family:hover .rq-family-hitbox,
.rq-family:focus-visible .rq-family-hitbox {
  fill: rgba(255, 255, 255, 0.7);
  stroke: var(--line);
}

.rq-family.is-selected .rq-family-hitbox {
  fill: var(--surface);
  stroke: var(--blue);
  stroke-width: 1.8;
}

.rq-family.is-muted {
  opacity: 0.42;
}

.rq-family-label {
  fill: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  font-weight: 700;
  pointer-events: none;
}

.rq-edge {
  fill: none;
  opacity: 0.24;
  stroke: #50565d;
  stroke-linecap: round;
  stroke-width: 1.65;
  vector-effect: non-scaling-stroke;
}

.rq-edge.evidence-same-lineage {
  stroke-dasharray: 8 6;
}

.rq-edge.evidence-analyst-inference {
  stroke-dasharray: 1.5 6;
}

.rq-edge.is-related {
  opacity: 0.88;
  stroke: var(--ink);
  stroke-width: 2.3;
}

.rq-edge.is-muted {
  opacity: 0.055;
}

.rq-edge.legend-sample {
  opacity: 0.9;
  stroke: var(--ink);
  stroke-width: 2.2;
}

.rq-node {
  cursor: pointer;
  outline: none;
  transition: opacity 120ms ease;
}

.rq-node rect {
  fill: color-mix(in srgb, var(--rq-color) 18%, white);
  stroke: var(--rq-color);
  stroke-width: 1.35;
  vector-effect: non-scaling-stroke;
}

.rq-node text {
  fill: var(--ink-soft);
  font-size: 13px;
  font-weight: 750;
  pointer-events: none;
}

.rq-node:hover rect,
.rq-node:focus-visible rect,
.rq-node.is-related rect {
  fill: color-mix(in srgb, var(--rq-color) 30%, white);
}

.rq-node.is-selected rect {
  fill: color-mix(in srgb, var(--rq-color) 26%, white);
  stroke: var(--ink);
  stroke-width: 3;
  filter: drop-shadow(0 4px 7px rgba(30, 32, 35, 0.18));
}

.rq-node.is-selected text {
  fill: var(--ink);
  font-weight: 850;
}

.rq-node.is-muted {
  opacity: 0.22;
}

.empty-view {
  display: grid;
  min-width: 100%;
  min-height: 100%;
  place-content: center;
  justify-items: center;
  gap: 18px;
  color: var(--muted);
}

.empty-mark {
  display: block;
  width: 84px;
  height: 54px;
  border: 1px dashed #c6beaf;
  border-radius: 14px;
  background:
    linear-gradient(90deg, transparent 49%, #d7d0c2 49%, #d7d0c2 51%, transparent 51%),
    linear-gradient(0deg, transparent 49%, #d7d0c2 49%, #d7d0c2 51%, transparent 51%);
  opacity: 0.75;
}

.empty-view p {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
}

.splitter {
  position: relative;
  z-index: 10;
  width: 9px;
  flex: 0 0 9px;
  border-right: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: #e9e4da;
  cursor: col-resize;
  outline: none;
}

.splitter span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 3px;
  height: 42px;
  border-right: 1px solid #a9a192;
  border-left: 1px solid #a9a192;
  transform: translate(-50%, -50%);
}

.splitter:focus-visible,
.splitter:hover {
  background: #ddd6c8;
}

.detail-pane {
  display: flex;
  min-width: 300px;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  background: var(--surface);
}

.panel-tabs {
  display: flex;
  min-height: 48px;
  align-items: flex-end;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  padding: 0 26px;
}

.panel-tab {
  position: relative;
  height: 48px;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.panel-tab::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--blue);
  content: "";
  opacity: 0;
}

.panel-tab.is-active {
  color: var(--ink);
}

.panel-tab.is-active::after {
  opacity: 1;
}

.detail-content {
  min-height: 0;
  flex: 1;
  overflow: auto;
  padding: 28px 28px 42px;
}

.detail-content h2 {
  margin: 0 0 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  font-weight: 600;
  line-height: 1.18;
}

.detail-content h3 {
  margin: 28px 0 12px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.author-profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 14px 0 0;
}

.author-affiliations {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 7px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.affiliation-separator {
  color: var(--line-strong);
}

.author-profile-links a {
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: var(--blue);
  font-size: 10px;
  font-weight: 700;
  padding: 6px 8px;
  text-decoration: none;
}

.author-profile-links a:hover {
  border-color: var(--blue);
}

.author-activity-line {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.6;
}

.author-activity-line span {
  color: var(--line-strong);
}

.author-collaborator-count {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.detail-content h3.collaborator-heading {
  font-size: 15px;
  letter-spacing: 0.04em;
  line-height: 1.25;
}

.collaborator-list {
  border-top: 1px solid var(--line);
}

.collaborator-row {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  padding: 11px 0;
  text-align: left;
}

.collaborator-row span:first-child {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  font-weight: 600;
}

.collaborator-row span:last-child {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 9px;
}

.collaborator-row:hover span:first-child {
  color: var(--blue);
}

.node-path,
.paper-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
}

.node-path {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 11px;
}

.path-separator {
  color: #b5aa97;
}

.overview-copy {
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.72;
}

.overview-copy p {
  margin: 0 0 1em;
}

.math-inline {
  display: inline-block;
  margin: 0 0.08em;
  font-size: 1.02em;
  vertical-align: -0.08em;
}

.math-display {
  display: block;
  max-width: 100%;
  margin: 1em 0;
  overflow-x: auto;
  overflow-y: hidden;
  font-size: 1.05em;
}

.rq-guiding-question {
  margin: 2px 0 24px;
  border-left: 3px solid var(--gold-500);
  background: #fbf7ea;
  padding: 12px 14px;
}

.rq-guiding-question > span {
  color: var(--gold-900);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rq-guiding-question p {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  line-height: 1.55;
}

.rq-first-date {
  margin: 2px 0 12px;
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rq-path-node {
  display: inline-flex;
  max-width: 100%;
  align-items: baseline;
  gap: 7px;
  text-align: left;
  white-space: normal;
}

.rq-path-node strong {
  flex: 0 0 auto;
}

.detail-statline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}

.paper-list-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.paper-sort-control {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.paper-sort-control select {
  max-width: 150px;
  height: 30px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 10px;
  letter-spacing: 0;
  padding: 0 24px 0 8px;
  text-transform: none;
}

.stat-pill,
.relation-pill,
.paper-meta-pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.stat-pill {
  background: var(--blue-soft);
  color: var(--blue);
  padding: 6px 9px;
}

.paper-list-group + .paper-list-group {
  margin-top: 28px;
}

.paper-list-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.paper-list-heading span:last-child {
  letter-spacing: 0;
}

.paper-card {
  display: block;
  width: 100%;
  border: 0;
  border-top: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  padding: 15px 0;
  text-align: left;
}

.paper-card:last-child {
  border-bottom: 1px solid var(--line);
}

.paper-card:hover .paper-card-title {
  color: var(--blue);
}

.paper-card-title {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  transition: color 120ms ease;
}

.paper-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 10px;
}

.relation-pill {
  background: var(--gold-100);
  color: var(--gold-900);
  padding: 3px 7px;
}

.relation-pill.secondary,
.relation-pill.related {
  background: #efefec;
  color: #64645e;
}

.loading-state,
.error-state {
  position: fixed;
  z-index: 100;
  inset: 64px 0 0;
  background: var(--paper);
}

.loading-state {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

.loading-ring {
  width: 22px;
  height: 22px;
  border: 2px solid #d7cfbf;
  border-top-color: var(--gold-700);
  border-radius: 50%;
  animation: spin 800ms linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.error-state {
  display: grid;
  place-content: center;
  justify-items: center;
  padding: 40px;
  text-align: center;
}

.error-state h1 {
  margin: 0 0 10px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
}

.error-state p {
  max-width: 620px;
  color: var(--muted);
}

.error-state code {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 11px 14px;
}

.paper-view {
  min-height: 0;
  flex: 1;
  overflow: auto;
  background:
    linear-gradient(90deg, rgba(210, 201, 184, 0.15) 1px, transparent 1px) 0 0 / 96px 100%,
    var(--paper);
}

.contact-view {
  min-height: 0;
  flex: 1;
  overflow: auto;
  background:
    linear-gradient(90deg, rgba(210, 201, 184, 0.15) 1px, transparent 1px) 0 0 / 96px 100%,
    var(--paper);
}

.contact-article {
  width: min(900px, calc(100% - 64px));
  margin: 0 auto;
  padding: clamp(64px, 10vh, 118px) 0 90px;
}

.contact-article > h1 {
  max-width: 760px;
  margin: 10px 0 22px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(38px, 5vw, 62px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.contact-intro {
  max-width: 720px;
  margin: 0 0 42px;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  line-height: 1.7;
}

.contact-repository {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: rgba(255, 254, 250, 0.86);
  box-shadow: var(--shadow);
  padding: 28px 30px;
}

.contact-label {
  margin: 0 0 8px;
  color: var(--gold-700);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-repository h2 {
  margin: 0 0 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  font-weight: 600;
}

.contact-repository code {
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.contact-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 9px;
}

.contact-actions a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 750;
  padding: 0 14px;
  text-decoration: none;
}

.contact-actions a:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.contact-actions a.is-primary {
  border-color: var(--ink);
  background: var(--ink);
  color: #fffdf7;
}

.paper-article {
  width: min(920px, calc(100% - 64px));
  margin: 0 auto;
  padding: 42px 0 90px;
}

.paper-back {
  margin-bottom: 30px;
}

.paper-title {
  max-width: 850px;
  margin: 0 0 14px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.paper-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 13px;
}

.paper-facts span + span::before {
  margin: 0 8px;
  color: #b3aa9c;
  content: "·";
}

.paper-authors {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 0;
  margin: 0 0 20px;
}

.author-link {
  border: 0;
  background: transparent;
  color: var(--blue);
  cursor: pointer;
  font-size: 13px;
  padding: 0;
}

.author-link:hover {
  text-decoration: underline;
}

.author-link:not(:last-child)::after {
  margin-right: 6px;
  color: var(--muted);
  content: " · ";
  text-decoration: none;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 38px;
}

.paper-link {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
  padding: 8px 11px;
  text-decoration: none;
}

.paper-link:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.identifier-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 14px;
  margin-top: -22px;
  margin-bottom: 36px;
  color: var(--muted);
  font-size: 10px;
}

.identifier-row code {
  color: var(--ink-soft);
}

.paper-section {
  border-top: 1px solid var(--line-strong);
  padding: 30px 0 34px;
}

.paper-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.paper-section h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 23px;
  font-weight: 600;
}

.abstract-copy {
  max-width: 840px;
  margin: 0;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.78;
}

.ai-summary-copy {
  max-width: 840px;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.78;
}

.ai-summary-copy p {
  margin: 0 0 18px;
}

.ai-summary-copy p:last-child {
  margin-bottom: 0;
}

.ai-summary-copy strong {
  color: var(--ink);
  font-weight: 700;
}

.attribute-group {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  padding: 20px 0;
}

.attribute-group:first-of-type {
  border-top: 0;
}

.attribute-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.07em;
  line-height: 1.4;
  text-transform: uppercase;
}

.facet-label {
  align-self: start;
}

.attribute-label-title {
  display: block;
}

.attribute-label-description,
.attribute-label-note {
  margin: 9px 0 0;
  color: var(--ink-soft);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.55;
  text-transform: none;
}

.attribute-label-note {
  border-left: 2px solid var(--gold-500);
  color: var(--muted);
  padding-left: 9px;
}

.attribute-relations {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.relation-row-label {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
}

.path-node {
  border: 1px solid #c6af70;
  border-radius: 6px;
  background: var(--gold-100);
  color: #5f4819;
  cursor: pointer;
  font-size: 11px;
  font-weight: 650;
  line-height: 1.25;
  padding: 6px 8px;
}

.path-node:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.unclassified {
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  font-style: italic;
}

.facet-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 254, 250, 0.75);
  padding: 16px 18px;
}

.facet-value-description {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.facet-value {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 7px;
}

.facet-value strong {
  color: var(--gold-900);
  font-size: 14px;
}

.facet-value code {
  color: var(--muted);
  font-size: 10px;
}

.why-included {
  border-top: 1px solid var(--line-strong);
  padding: 26px 0;
}

.why-included summary {
  cursor: pointer;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  font-weight: 600;
  list-style-position: outside;
}

.why-included p {
  max-width: 820px;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.7;
}

@media (max-width: 1100px) {
  .topbar {
    grid-template-columns: 190px minmax(500px, 1fr) 150px;
  }

  .brand-copy small {
    display: none;
  }

  .brand {
    padding: 0 16px;
  }

  .nav-tab {
    padding-right: 9px;
    padding-left: 9px;
    font-size: 12px;
  }

  .top-actions {
    gap: 5px;
    padding-right: 10px;
  }

  .paper-search-open {
    min-width: 34px;
    width: 34px;
    justify-content: center;
    padding: 0;
  }

  .paper-search-open > span:nth-child(2),
  .paper-search-open kbd {
    display: none;
  }

  .contact-open {
    padding: 0 7px;
  }

  .contact-repository {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-actions {
    justify-content: flex-start;
  }

  .attribute-group {
    grid-template-columns: 220px minmax(0, 1fr);
  }
}