.tree-app {
  max-width: 92rem;
}

.tree-header {
  margin-bottom: 1.5rem;
}

.tree-shell {
  background-color: var(--wa-white);
  border: 1px solid var(--wa-gray-light);
  border-radius: 8px;
  padding: 1rem;
}

.tree-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.field-label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--wa-ink-light);
  font-size: 0.78rem;
  font-weight: 700;
}

.search-box {
  position: relative;
}

.search-input {
  width: 100%;
  min-height: 2.8rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  color: var(--wa-ink);
  background-color: var(--wa-bg);
  font: inherit;
}

.search-input:focus {
  outline: 2px solid var(--wa-orange-light);
  outline-offset: 2px;
}

.suggestions {
  position: absolute;
  z-index: 20;
  top: calc(100% + 0.35rem);
  left: 0;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--wa-gray-light);
  border-radius: 8px;
  background-color: var(--wa-white);
}

.suggestions button {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0.8rem;
  border: 0;
  border-bottom: 1px solid var(--wa-gray-light);
  background: transparent;
  color: var(--wa-ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.suggestions button:last-child {
  border-bottom: 0;
}

.suggestions button:hover {
  background-color: var(--wa-orange-pale);
}

.suggestions span {
  flex-shrink: 0;
  color: var(--wa-gray);
  font-size: 0.74rem;
}

.filter-row {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.15rem;
}

.filter-chip {
  flex: 0 0 auto;
  min-height: 2.3rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  background-color: var(--wa-bg);
  color: var(--wa-ink-light);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
}

.filter-chip.is-active {
  border-color: var(--wa-orange);
  background-color: var(--wa-orange-pale);
  color: var(--wa-ink);
}

.view-button {
  min-height: 2.3rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--wa-sea);
  border-radius: 6px;
  background-color: var(--wa-sea-light);
  color: var(--wa-ink);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
}

.view-button:hover {
  background-color: var(--wa-white);
}

.guide-panel,
.sources-panel {
  margin-bottom: 1rem;
  border: 1px solid var(--wa-gray-light);
  border-radius: 8px;
  background-color: var(--wa-bg);
}

.guide-panel summary,
.sources-panel summary {
  min-height: 2.7rem;
  padding: 0.45rem 0.85rem;
  color: var(--wa-ink);
  font-weight: 700;
  cursor: pointer;
}

.sources-panel ul {
  display: grid;
  gap: 0.35rem;
  padding: 0 1.2rem 0.7rem 2rem;
  font-size: 0.82rem;
}

.sources-panel a {
  color: var(--wa-sea);
}

.sources-panel p {
  padding: 0 0.85rem 0.9rem;
  color: var(--wa-ink-light);
  font-size: 0.78rem;
  line-height: 1.7;
}

.guide-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0 0.85rem 0.9rem;
}

.guide-block {
  min-width: 0;
  padding: 0.8rem;
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  background-color: var(--wa-white);
}

.guide-block h2 {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.guide-note p,
.legend-list {
  color: var(--wa-ink-light);
  font-size: 0.82rem;
  line-height: 1.75;
}

.legend-list {
  display: grid;
  gap: 0.42rem;
  list-style: none;
}

.legend-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.node-swatch {
  width: 1.2rem;
  height: 1.2rem;
  flex: 0 0 auto;
  border: 2px solid var(--wa-white);
  border-radius: 50%;
}

.swatch-ancestor {
  background-color: var(--wa-green);
}

.swatch-mandarin {
  background-color: var(--wa-orange);
}

.swatch-tangor {
  background-color: var(--wa-orange-light);
}

.swatch-yuzu {
  background-color: #B6D957;
}

.swatch-virtual {
  background-color: var(--wa-white);
  border-color: var(--wa-gray);
  border-style: dashed;
}

.swatch-wakayama {
  background-color: var(--wa-orange);
  border-color: var(--wa-sea);
  border-width: 4px;
}

.edge-swatch {
  position: relative;
  width: 2.2rem;
  height: 0;
  flex: 0 0 auto;
  border-top: 2px solid #A6ABB3;
}

.edge-swatch::after {
  content: "";
  position: absolute;
  top: -5px;
  right: -1px;
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 7px solid #A6ABB3;
}

.edge-pollen {
  border-top-style: dashed;
}

.edge-unknown {
  border-top-style: dotted;
  border-top-color: #C4C8D0;
}

.edge-unknown::after {
  border-left-color: #C4C8D0;
}

.edge-mutation {
  border-top-style: dashed;
  border-top-color: var(--wa-sea);
}

.edge-mutation::after {
  border-left-color: var(--wa-sea);
}

.graph-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.graph-panel {
  position: relative;
  min-width: 0;
}

.citrus-graph {
  width: 100%;
  min-height: 620px;
  height: min(980px, calc(100vh - 160px));
  border: 1px solid var(--wa-gray-light);
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.72)),
    var(--wa-bg);
}

.zoom-controls {
  position: absolute;
  right: 0.75rem;
  bottom: 2.6rem;
  display: flex;
  overflow: hidden;
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  background-color: var(--wa-white);
}

.zoom-controls button {
  min-width: 2.35rem;
  min-height: 2.25rem;
  padding: 0 0.65rem;
  border: 0;
  border-right: 1px solid var(--wa-gray-light);
  background-color: var(--wa-white);
  color: var(--wa-ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

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

.zoom-controls button:hover {
  background-color: var(--wa-orange-pale);
}

.graph-status {
  min-height: 1.4rem;
  margin-top: 0.45rem;
  color: var(--wa-gray);
  font-size: 0.78rem;
}

.detail-panel {
  border: 1px solid var(--wa-gray-light);
  border-radius: 8px;
  padding: 1rem;
  background-color: var(--wa-bg);
}

.detail-kicker {
  margin-bottom: 0.2rem;
  color: var(--wa-gray);
  font-size: 0.72rem;
  font-weight: 700;
}

.detail-panel h2 {
  margin-bottom: 0.15rem;
  font-size: 1.35rem;
  line-height: 1.45;
}

.detail-reading {
  color: var(--wa-ink-light);
  font-size: 0.84rem;
}

.detail-tabs {
  display: flex;
  gap: 0.35rem;
  margin: 0.9rem 0 0.2rem;
}

.detail-tab {
  min-height: 2rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  background-color: var(--wa-white);
  color: var(--wa-ink-light);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.detail-tab.is-active {
  border-color: var(--wa-orange);
  background-color: var(--wa-orange-pale);
  color: var(--wa-ink);
}

.detail-tab-panel {
  min-width: 0;
}

.detail-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 0.95rem 0;
}

.detail-meta div {
  min-width: 0;
  padding: 0.55rem;
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  background-color: var(--wa-white);
}

.detail-meta dt {
  color: var(--wa-gray);
  font-size: 0.68rem;
  font-weight: 700;
}

.detail-meta dd {
  color: var(--wa-ink);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.5;
}

.detail-description {
  color: var(--wa-ink-light);
  font-size: 0.9rem;
}

.relation-group {
  margin-top: 1rem;
}

.relation-group h3 {
  margin-bottom: 0.45rem;
  font-size: 0.86rem;
}

.relation-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.relation-links button,
.empty-relation {
  min-height: 2rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--wa-gray-light);
  border-radius: 6px;
  background-color: var(--wa-white);
  color: var(--wa-ink);
  font: inherit;
  font-size: 0.8rem;
}

.relation-links button {
  cursor: pointer;
}

.relation-links button:hover {
  border-color: var(--wa-orange);
}

.relation-links span {
  display: inline-block;
  margin-left: 0.35rem;
  color: var(--wa-gray);
  font-size: 0.68rem;
  font-weight: 700;
}

.image-gallery {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.detail-image {
  overflow: hidden;
  border: 1px solid var(--wa-gray-light);
  border-radius: 8px;
  background-color: var(--wa-white);
}

.detail-image img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.detail-image figcaption {
  padding: 0.55rem 0.7rem;
  color: var(--wa-ink-light);
  font-size: 0.78rem;
  line-height: 1.6;
}

.tree-shell.is-expanded {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  overflow: auto;
  border: 0;
  border-radius: 0;
  padding: 0.85rem;
}

.tree-shell.is-expanded .tree-toolbar {
  grid-template-columns: minmax(16rem, 1fr) auto auto;
}

.tree-shell.is-expanded .guide-panel {
  flex: 0 0 auto;
}

.tree-shell.is-expanded .graph-layout {
  flex: 1 1 auto;
  grid-template-columns: minmax(0, 1fr);
  min-height: 0;
}

.tree-shell.is-expanded .graph-panel {
  min-height: 0;
}

.tree-shell.is-expanded .detail-panel {
  position: static;
}

.tree-shell.is-expanded .citrus-graph {
  height: calc(100vh - 11rem);
  min-height: 620px;
}

.tree-shell.is-expanded .view-button {
  background-color: var(--wa-orange-pale);
  border-color: var(--wa-orange);
}

body.has-expanded-tree {
  overflow: hidden;
}

@media (min-width: 720px) {
  .tree-toolbar {
    grid-template-columns: minmax(16rem, 1fr) auto auto;
    align-items: end;
  }

  .filter-row {
    justify-content: flex-end;
    padding-bottom: 0;
  }

  .guide-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .guide-note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .graph-layout {
    grid-template-columns: minmax(0, 1fr) 21rem;
    align-items: start;
  }
}

@media (max-width: 560px) {
  .tree-app {
    padding-inline: 0.75rem;
  }

  .tree-shell {
    padding: 0.75rem;
  }

  .citrus-graph {
    min-height: 560px;
    height: calc(100vh - 170px);
  }

  .detail-meta {
    grid-template-columns: 1fr;
  }

  .zoom-controls {
    right: 0.55rem;
    bottom: 2.7rem;
  }

  .tree-shell.is-expanded {
    padding: 0.65rem;
  }

  .tree-shell.is-expanded .tree-toolbar {
    grid-template-columns: minmax(0, 1fr);
  }

  .tree-shell.is-expanded .citrus-graph {
    height: 72vh;
    min-height: 560px;
  }
}