:root {
  --bg: #f3efe7;
  --surface: #fffdf8;
  --surface-2: #f7f2e9;
  --surface-3: #efe9dd;
  --ink: #1e2227;
  --ink-soft: #4c5158;
  --muted: #767a7f;
  --faint: #9a9a94;
  --line: #d9d1c2;
  --line-strong: #bdb3a1;
  --canvas: #fbf8f1;
  --canvas-dot: #ded6c7;
  --edge: #aaa08f;
  --edge-soft: #c0b6a5;
  --accent: #d94f2b;
  --accent-ink: #a83a1d;
  --accent-soft: #fbe3db;
  --teal: #0f766e;
  --blue: #2563eb;
  --violet: #7c3aed;
  --green: #4d7c0f;
  --amber: #b7791f;
  --coral: #d1495b;
  --shadow-card: 0 1px 1px rgba(30, 34, 39, .04), 0 7px 18px rgba(30, 34, 39, .055);
  --shadow-lift: 0 2px 3px rgba(30, 34, 39, .05), 0 18px 38px rgba(30, 34, 39, .11);
  --shadow-frame: 0 1px 1px rgba(30, 34, 39, .04), 0 18px 48px rgba(30, 34, 39, .06);
  --radius-card: 14px;
  --radius-frame: 18px;
  --sans: "Avenir Next", Avenir, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --mono: "SFMono-Regular", ui-monospace, "Cascadia Code", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #101417;
  --surface: #1a2024;
  --surface-2: #20272c;
  --surface-3: #273036;
  --ink: #f2eee6;
  --ink-soft: #c8c2b8;
  --muted: #989b9e;
  --faint: #767b7e;
  --line: #343d43;
  --line-strong: #4a555d;
  --canvas: #141a1e;
  --canvas-dot: #2c363d;
  --edge: #667078;
  --edge-soft: #49545c;
  --accent: #ff7a55;
  --accent-ink: #ff9b7e;
  --accent-soft: #3a211b;
  --teal: #2dd4bf;
  --blue: #60a5fa;
  --violet: #a78bfa;
  --green: #a3e635;
  --amber: #fbbf24;
  --coral: #fb7185;
  --shadow-card: 0 1px 1px rgba(0, 0, 0, .18), 0 8px 20px rgba(0, 0, 0, .18);
  --shadow-lift: 0 2px 4px rgba(0, 0, 0, .2), 0 20px 42px rgba(0, 0, 0, .3);
  --shadow-frame: 0 1px 1px rgba(0, 0, 0, .15), 0 20px 60px rgba(0, 0, 0, .22);
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  height: 100%;
  scrollbar-gutter: stable;
}

body {
  display: flex;
  flex-direction: column;
  min-width: 320px;
  height: 100dvh;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(700px 420px at 84% -8%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%),
    radial-gradient(700px 500px at 4% 0%, color-mix(in srgb, var(--teal) 6%, transparent), transparent 70%);
}

[data-theme="dark"] body::before {
  background:
    radial-gradient(700px 420px at 84% -8%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 70%),
    radial-gradient(700px 500px at 4% 0%, color-mix(in srgb, var(--teal) 5%, transparent), transparent 70%);
}

::selection {
  color: var(--ink);
  background: color-mix(in srgb, var(--accent) 28%, transparent);
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

svg {
  display: block;
}

a {
  color: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 8px 12px;
  border-radius: 7px;
  background: var(--ink);
  color: var(--surface);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.app-bar {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 58px;
  padding: 0 20px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  color: var(--teal);
}

.brand-title {
  overflow: hidden;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-title span,
.brand-title em {
  color: var(--accent);
  font-style: italic;
  font-weight: 400;
}

.board-total {
  flex: 0 0 auto;
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .04em;
  white-space: nowrap;
}

.board-total strong {
  color: var(--ink-soft);
  font-weight: 600;
}

.topnav {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 6px 9px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 540;
  text-decoration: none;
  transition: background .15s ease, color .15s ease;
}

.nav-link:hover {
  background: var(--surface);
  color: var(--ink);
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}

.icon-button:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.icon-button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-button.compact {
  width: 27px;
  height: 27px;
  border-color: transparent;
  background: transparent;
  font-size: 16px;
}

.icon-button.compact:hover {
  background: var(--surface-2);
}

.icon-sun,
.icon-moon {
  grid-area: 1 / 1;
}

[data-theme="light"] .icon-sun,
[data-theme="dark"] .icon-moon {
  display: none;
}

.app-main {
  display: flex;
  flex: 1;
  min-height: 0;
  padding: 0 16px 16px;
}

.map-shell {
  display: flex;
  flex: 1;
  flex-direction: column;
  width: 100%;
  max-width: 1800px;
  min-height: 0;
  margin: 0 auto;
}

.controls {
  display: grid;
  flex: 0 0 auto;
  gap: 7px;
  padding: 10px 0 9px;
}

.controls-main {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}

.search-box {
  display: flex;
  flex: 0 1 340px;
  align-items: center;
  gap: 8px;
  height: 34px;
  min-width: 210px;
  padding: 0 9px 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  transition: border-color .15s ease, box-shadow .15s ease;
}

.search-box:focus-within {
  border-color: color-mix(in srgb, var(--accent) 60%, var(--line));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 10%, transparent);
}

.search-box svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.8;
  stroke-linecap: round;
}

.search-box input {
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 11.5px;
}

.search-box input::placeholder {
  color: var(--faint);
}

kbd {
  display: inline-block;
  min-width: 17px;
  padding: 0 3px;
  border: 1px solid var(--line);
  border-bottom-color: var(--line-strong);
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  line-height: 1.5;
  text-align: center;
}

.search-box kbd {
  flex: 0 0 auto;
}

.result-count {
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .03em;
  white-space: nowrap;
}

.view-tools {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.tool-button {
  height: 30px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 10.5px;
  font-weight: 540;
  cursor: pointer;
  transition: border-color .15s ease, color .15s ease, background .15s ease, opacity .15s ease;
}

.tool-button:hover:not(:disabled) {
  border-color: var(--line-strong);
  color: var(--ink);
}

.tool-button.is-on {
  border-color: color-mix(in srgb, var(--accent) 34%, var(--line));
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.tool-button:disabled {
  opacity: .38;
  cursor: default;
}

.zoom-group {
  display: flex;
  align-items: center;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.zoom-value {
  min-width: 39px;
  padding: 0 3px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 9px;
  text-align: center;
  cursor: pointer;
}

.zoom-value:hover {
  color: var(--accent-ink);
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.filter-label,
.branch-jump-label {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.chips {
  display: flex;
  gap: 4px;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.chips::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  flex: 0 0 auto;
  height: 25px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 9.5px;
  font-weight: 520;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}

.filter-chip:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.filter-chip[aria-pressed="true"] {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--surface);
}

.clear-filters {
  flex: 0 0 auto;
  padding: 2px 5px;
  border: 0;
  background: transparent;
  color: var(--accent-ink);
  font-size: 9.5px;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.branch-jump {
  display: flex;
  align-items: center;
  gap: 1px;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.branch-jump::-webkit-scrollbar {
  display: none;
}

.branch-jump-label {
  margin-right: 5px;
}

.branch-jump button {
  flex: 0 0 auto;
  padding: 1px 7px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 9.5px;
  cursor: pointer;
}

.branch-jump button:hover {
  background: var(--surface-2);
  color: var(--ink);
}

.branch-jump button:first-of-type {
  color: var(--accent-ink);
}

.tree-frame {
  position: relative;
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-frame);
  background: var(--canvas);
  box-shadow: var(--shadow-frame);
}

.tree-frame::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 52%, transparent);
  border-radius: inherit;
}

.tree-scroller {
  position: relative;
  flex: 1 1 auto;
  z-index: 0;
  width: 100%;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  cursor: grab;
  scrollbar-color: color-mix(in srgb, var(--line-strong) 70%, transparent) transparent;
  scrollbar-width: thin;
}

.tree-scroller.is-dragging {
  cursor: grabbing;
  user-select: none;
}

.tree-scroller:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 65%, transparent);
  outline-offset: -4px;
}

.tree-scroller::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}

.tree-scroller::-webkit-scrollbar-track {
  background: transparent;
}

.tree-scroller::-webkit-scrollbar-thumb {
  border: 3px solid transparent;
  border-radius: 10px;
  background: color-mix(in srgb, var(--line-strong) 70%, transparent);
  background-clip: padding-box;
}

.zoom-wrap {
  position: relative;
  margin-inline: auto;
}

.stage {
  position: relative;
  transform-origin: 0 0;
  background-color: var(--canvas);
  background-image: radial-gradient(circle, var(--canvas-dot) 1px, transparent 1.2px);
  background-size: 22px 22px;
  background-position: 4px 4px;
}

.edge-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.node-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.edge {
  fill: none;
  stroke: var(--edge);
  stroke-width: 1.35;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: opacity .18s ease, stroke .18s ease, stroke-width .18s ease;
}

.edge.direct {
  stroke: color-mix(in srgb, var(--edge) 88%, var(--ink) 12%);
}

.edge.inspired {
  stroke: color-mix(in srgb, var(--edge-soft) 88%, var(--ink) 12%);
  stroke-dasharray: 4.5 5.5;
}

.edge.reuse {
  stroke: color-mix(in srgb, var(--edge-soft) 72%, transparent);
  stroke-dasharray: 1.4 5.5;
}

.edge.is-active {
  stroke: var(--accent);
  stroke-width: 2;
  opacity: 1;
}

.edge.is-active.inspired,
.edge.is-active.reuse {
  stroke-dasharray: 5 5;
}

.edge-label {
  fill: var(--muted);
  stroke: var(--canvas);
  stroke-width: 4.6px;
  paint-order: stroke;
  stroke-linejoin: round;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .01em;
  text-anchor: middle;
  pointer-events: none;
  transition: fill .18s ease;
}

.edge-label.reuse {
  fill: var(--faint);
  font-style: italic;
}

.edge-label.is-active {
  fill: var(--accent);
  font-weight: 650;
}

.stage.hide-labels .edge-label {
  display: none;
}

.node-card {
  position: absolute;
  width: 236px;
  height: 158px;
  padding: 13px 14px 12px 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease, opacity .15s ease;
}

.node-card::before {
  position: absolute;
  top: 14px;
  bottom: 14px;
  left: 0;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--branch, var(--edge));
  content: "";
}

.node-card:hover {
  z-index: 3;
  border-color: color-mix(in srgb, var(--branch, var(--line)) 42%, var(--line));
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}

.node-card:focus-visible {
  z-index: 4;
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.node-card.is-root {
  border-color: color-mix(in srgb, var(--amber) 46%, var(--line));
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--amber) 8%, transparent), transparent 55%),
    var(--surface);
}

.node-card.is-selected {
  z-index: 5;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 22%, transparent), var(--shadow-lift);
  transform: translateY(-2px);
}

.node-card.is-context {
  border-style: dashed;
  opacity: .58;
}

.node-card.is-context:hover,
.node-card.is-context:focus-visible {
  opacity: .92;
}

.node-card.pulse {
  animation: card-pulse .75s ease;
}

@keyframes card-pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 38%, transparent), var(--shadow-card); }
  55% { box-shadow: 0 0 0 9px color-mix(in srgb, var(--accent) 0%, transparent), var(--shadow-lift); }
  100% { box-shadow: var(--shadow-card); }
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 520;
  letter-spacing: .09em;
  line-height: 1.2;
  text-transform: uppercase;
}

.branch-dot {
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--branch, var(--edge));
}

.branch-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-year {
  margin-left: auto;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.card-name {
  display: block;
  margin: 7px 0 0;
  overflow: hidden;
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -.025em;
  line-height: 1.14;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-maker {
  display: block;
  margin: 2px 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-delta {
  display: -webkit-box;
  min-height: 29px;
  margin: 8px 0 0;
  overflow: hidden;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.33;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.delta-mark {
  margin-right: 2px;
  color: var(--accent);
  font-weight: 700;
}

.card-tags {
  display: flex;
  gap: 3px;
  align-items: center;
  margin-top: 7px;
  overflow: hidden;
  white-space: nowrap;
}

.card-tag {
  flex: 0 0 auto;
  padding: 2px 5px;
  border: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: .02em;
  line-height: 1.35;
}

.card-tag.is-more {
  border-color: transparent;
  background: transparent;
  color: var(--faint);
}

.tree-footer {
  position: relative;
  z-index: 6;
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 36px;
  padding: 5px 13px;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: blur(10px);
}

.tree-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 13px;
  min-width: 0;
  color: var(--muted);
  font-size: 9px;
  pointer-events: none;
}

.tree-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.legend-line {
  display: inline-block;
  width: 18px;
  height: 0;
  border-top: 1.5px solid var(--edge);
}

.legend-line.inspired {
  border-top-style: dashed;
}

.legend-line.reuse {
  border-top-style: dotted;
  border-top-width: 2px;
  border-color: var(--edge-soft);
}

.legend-line.context {
  border-top-style: dashed;
  border-color: var(--faint);
  opacity: .55;
}

.zoom-badge {
  flex: 0 0 auto;
  padding: 3px 6px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.no-results,
.load-error {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 8;
  width: min(380px, calc(100% - 36px));
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-lift);
  text-align: center;
  transform: translate(-50%, -50%);
}

.no-results strong,
.load-error strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -.025em;
}

.no-results span,
.load-error p {
  display: block;
  margin: 0 0 11px;
  color: var(--muted);
  font-size: 11px;
}

.no-results button {
  height: 31px;
  padding: 0 12px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  background: var(--ink);
  color: var(--surface);
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
}

.load-error {
  text-align: left;
}

.load-error code {
  font-family: var(--mono);
  font-size: 10px;
}

.load-error pre {
  margin: 10px 0 0;
  padding: 10px;
  overflow: auto;
  border-radius: 7px;
  background: var(--surface-2);
}

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(16, 18, 20, .34);
  opacity: 0;
  transition: opacity .22s ease;
}

.drawer-backdrop.is-open {
  opacity: 1;
}

.detail-drawer {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 70;
  display: flex;
  flex-direction: column;
  width: min(470px, 100vw);
  height: 100dvh;
  border-left: 1px solid var(--line);
  background: var(--surface);
  box-shadow: -24px 0 70px rgba(16, 18, 20, .16);
  transform: translateX(102%);
  visibility: hidden;
  transition: transform .26s cubic-bezier(.22, .8, .25, 1), visibility .26s;
}

.detail-drawer.is-open {
  transform: translateX(0);
  visibility: visible;
}

body.drawer-open {
  overflow: hidden;
}

.drawer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 17px 12px 23px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(12px);
}

.drawer-kicker {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.drawer-body {
  flex: 1;
  padding: 23px 25px 40px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.detail-eyebrow {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 11px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.detail-eyebrow .branch-dot {
  width: 6px;
  height: 6px;
  background: var(--branch, var(--accent));
}

.detail-eyebrow .detail-year {
  margin-left: auto;
  color: var(--faint);
}

.detail-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 46px);
  font-weight: 500;
  letter-spacing: -.05em;
  line-height: .98;
}

.detail-maker {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 11.5px;
}

.detail-summary {
  margin: 20px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 16px;
}

.detail-tag {
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
}

.detail-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.detail-section h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 650;
  letter-spacing: .11em;
  text-transform: uppercase;
}

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

.change-list li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.55;
}

.change-list li::before {
  position: absolute;
  top: .58em;
  left: 0;
  width: 6px;
  height: 1px;
  background: var(--accent);
  content: "";
}

.lineage-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.lineage-label {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.node-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 7px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-2);
  color: var(--ink-soft);
  font-size: 10px;
  cursor: pointer;
  transition: border-color .15s ease, color .15s ease;
}

.node-chip:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.node-chip::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--chip-branch, var(--edge));
  content: "";
}

.children-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.evidence {
  margin: 0;
  padding: 13px 14px 13px 16px;
  border-left: 3px solid color-mix(in srgb, var(--accent) 65%, var(--line));
  border-radius: 0 7px 7px 0;
  background: var(--surface-2);
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.6;
}

.source-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color .15s ease, background .15s ease;
}

.source-link:hover {
  border-color: var(--line-strong);
  background: var(--surface-2);
}

.source-link span:last-child {
  color: var(--muted);
}

.detail-actions {
  display: flex;
  gap: 7px;
  margin-top: 20px;
}

.ghost-button {
  height: 31px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 10px;
  cursor: pointer;
}

.ghost-button:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  z-index: 90;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--ink);
  color: var(--surface);
  font-size: 10.5px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity .18s ease, transform .18s ease;
}

.toast.is-open {
  opacity: 1;
  transform: translate(-50%, 0);
}

.noscript {
  position: fixed;
  right: 16px;
  bottom: 16px;
  left: 16px;
  z-index: 100;
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-size: 11px;
}

@media (max-width: 1050px) {
  .controls-main {
    flex-wrap: wrap;
  }

  .search-box {
    flex: 1 1 250px;
  }

  .result-count {
    order: 3;
    flex: 1 0 100%;
  }

  .view-tools {
    flex: 0 0 auto;
  }
}

@media (max-width: 720px) {
  .app-bar {
    height: 52px;
    padding-inline: 12px;
  }

  .brand-mark {
    width: 27px;
    height: 27px;
  }

  .brand-title {
    font-size: 18px;
  }

  .board-total {
    display: none;
  }

  .nav-link {
    display: none;
  }

  .app-main {
    padding: 0 9px 9px;
  }

  .controls {
    gap: 6px;
    padding: 8px 0 7px;
  }

  .controls-main {
    gap: 6px;
  }

  .search-box {
    flex-basis: 100%;
    height: 33px;
    min-width: 0;
  }

  .view-tools {
    width: 100%;
    justify-content: space-between;
    margin-left: 0;
  }

  .filter-label,
  .branch-jump-label {
    display: none;
  }

  .filter-chip {
    height: 24px;
    padding-inline: 7px;
    font-size: 9px;
  }

  .branch-jump button {
    font-size: 9px;
    padding-inline: 5px;
  }

  .tree-frame {
    border-radius: 13px;
  }

  .tree-footer {
    padding: 4px 8px;
  }

  .tree-legend {
    gap: 3px 9px;
    font-size: 8px;
  }

  .zoom-badge {
    display: none;
  }

  .detail-drawer {
    width: 100vw;
  }

  .drawer-body {
    padding: 20px 18px 34px;
  }

  .drawer-top {
    padding-inline: 17px;
  }
}

@media (max-width: 430px) {
  .brand-title em {
    display: none;
  }

  .result-count {
    font-size: 9px;
  }
}

@media (max-height: 620px) {
  body {
    height: auto;
    min-height: 100dvh;
    overflow: auto;
  }

  .app-main {
    min-height: 520px;
  }

  .tree-frame {
    flex: none;
    height: 440px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}