:root {
  color-scheme: light;
  --bg: #f4f6f5;
  --surface: #ffffff;
  --surface-2: #f8faf9;
  --line: #d8dedc;
  --line-strong: #b9c4c0;
  --text: #17211f;
  --muted: #63716d;
  --green: #1f7a5c;
  --blue: #2f62a3;
  --red: #a63d40;
  --amber: #9b6a22;
  --violet: #7650a1;
  --shadow: 0 16px 40px rgba(28, 43, 39, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans KR", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

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

.app-shell {
  min-height: 100vh;
  padding: 18px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(210px, 0.7fr) minmax(260px, 1fr) auto;
  align-items: center;
  gap: 14px;
  max-width: 1680px;
  margin: 0 auto 14px;
}

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

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
  background: #fbfcfc;
  color: var(--green);
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 30px;
  line-height: 1;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 760;
  letter-spacing: 0;
}

.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.search-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 82px;
  gap: 8px;
}

.network-search {
  grid-template-columns: 116px minmax(0, 1fr) 76px;
}

.search-form input,
.search-form select {
  width: 100%;
  min-width: 0;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 0 14px;
  background: var(--surface);
  color: var(--text);
  font-size: 18px;
  outline: none;
}

.search-form select {
  font-size: 15px;
  padding: 0 10px;
}

.search-form input:focus,
.search-form select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(31, 122, 92, 0.12);
}

.search-form button {
  height: 46px;
  background: var(--green);
  border-color: var(--green);
  color: white;
  font-weight: 700;
}

.quick-picks {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.quick-picks button {
  min-width: 42px;
  height: 34px;
  padding: 0 10px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(260px, 330px) minmax(420px, 1fr) minmax(260px, 360px);
  gap: 14px;
  max-width: 1680px;
  margin: 0 auto;
  align-items: start;
}

.rail,
.focus {
  display: grid;
  gap: 14px;
}

.panel,
.character-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel {
  padding: 14px;
}

.character-panel {
  padding: 18px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.panel-title h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 760;
}

.panel-title-actions {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 8px;
}

.panel-toggle {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 8px;
  padding: 0;
  background: var(--surface-2);
}

.panel-toggle span {
  width: 8px;
  height: 8px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: translateY(2px) rotate(-45deg);
  transition: transform 140ms ease;
}

.collapsible-panel.is-collapsed > :not(.panel-title) {
  display: none;
}

.collapsible-panel.is-collapsed .panel-title {
  margin-bottom: 0;
}

.collapsible-panel.is-collapsed .panel-toggle span {
  transform: translateY(-2px) rotate(135deg);
}

.status-pill {
  display: inline-flex;
  max-width: 100%;
  min-height: 24px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.tall {
  min-height: 280px;
}

.stack {
  display: grid;
  gap: 8px;
}

.muted {
  color: var(--muted);
  font-size: 14px;
}

.result-row,
.group-block,
.related-row,
.mapping-row {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  padding: 10px;
  text-align: left;
}

button.result-row,
button.related-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
}

.result-row.active,
.related-row:hover {
  border-color: var(--green);
  background: #f1faf6;
}

.mini-glyph {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 28px;
  line-height: 1;
}

.row-title {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--text);
  font-weight: 760;
}

.row-title span:last-child {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.row-copy {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.character-head {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.glyph {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fbfcfc;
  color: var(--text);
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 88px;
  line-height: 1;
}

.codepoint {
  color: var(--green);
  font-size: 13px;
  font-weight: 760;
}

.character-copy h2 {
  margin: 6px 0 8px;
  font-size: 24px;
  line-height: 1.22;
  letter-spacing: 0;
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.meta-chip,
.tag,
.reading-pill,
.char-chip,
.map-chip {
  display: inline-flex;
  max-width: 100%;
  min-height: 26px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.reading-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.reading-card {
  min-height: 138px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--surface-2);
}

.reading-card h3 {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--muted);
}

.reading-values {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.reading-pill.ko {
  border-color: rgba(31, 122, 92, 0.35);
  color: var(--green);
}

.reading-pill.ja {
  border-color: rgba(47, 98, 163, 0.35);
  color: var(--blue);
}

.reading-pill.zh {
  border-color: rgba(166, 61, 64, 0.35);
  color: var(--red);
}

.reading-pill.yue {
  border-color: rgba(118, 80, 161, 0.35);
  color: var(--violet);
}

.reading-pill.vi {
  border-color: rgba(155, 106, 34, 0.35);
  color: var(--amber);
}

.system-label {
  color: var(--muted);
  font-size: 11px;
}

.graph-panel {
  min-height: 330px;
}

.network {
  min-height: 280px;
}

.network svg {
  display: block;
  width: 100%;
  height: 280px;
}

.network text {
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  dominant-baseline: middle;
  text-anchor: middle;
  pointer-events: none;
}

.network-node {
  cursor: pointer;
}

.network-line {
  stroke: #c5ceca;
  stroke-width: 1.2;
}

.network-circle {
  fill: #ffffff;
  stroke: var(--line-strong);
  stroke-width: 1.2;
}

.network-center {
  fill: #edf8f3;
  stroke: var(--green);
  stroke-width: 2;
}

.tags-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag.ko {
  border-color: rgba(31, 122, 92, 0.32);
}

.tag.ja,
.tag.jp {
  border-color: rgba(47, 98, 163, 0.32);
}

.tag.zh-cn,
.tag.zh-tw,
.tag.zh-hk,
.tag.zh {
  border-color: rgba(166, 61, 64, 0.32);
}

.group-block {
  display: grid;
  gap: 9px;
}

.group-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.group-title {
  color: var(--text);
  font-weight: 760;
}

.group-subtitle {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.char-chip {
  min-height: 32px;
  border-radius: 8px;
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 18px;
}

.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

button.char-chip {
  padding: 3px 8px;
}

.map-chip {
  color: var(--amber);
}

.mapping-row {
  display: grid;
  gap: 6px;
}

.mapping-row strong {
  color: var(--text);
  font-size: 13px;
}

.empty {
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  padding: 14px;
  color: var(--muted);
  background: var(--surface-2);
}

.error {
  border-color: rgba(166, 61, 64, 0.38);
  color: var(--red);
  background: #fff7f7;
}

.char-preview {
  position: fixed;
  z-index: 6400;
  width: 280px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 24px 60px rgba(31, 41, 55, 0.18);
  backdrop-filter: blur(10px);
  pointer-events: none;
  transform: translateY(-100%);
}

.char-preview.below {
  transform: none;
}

.char-preview[hidden] {
  display: none;
}

.char-preview-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.char-preview-head strong {
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 40px;
  line-height: 1;
}

.char-preview-head span,
.char-preview-loading {
  color: var(--muted);
  font-size: 12px;
}

.char-preview p {
  margin: 8px 0 10px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}

.preview-readings {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.preview-reading {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 7px;
  font-size: 11px;
}

.preview-reading.ko {
  color: var(--green);
}

.preview-reading.ja {
  color: var(--blue);
}

.preview-reading.zh {
  color: var(--red);
}

.preview-reading.yue {
  color: var(--violet);
}

.preview-reading.vi {
  color: var(--amber);
}

.preview-variants {
  margin: -3px 0 9px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
}

.training-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 430px);
  gap: 14px;
  max-width: 1680px;
  margin: 0 auto;
  align-items: start;
}

.network-main,
.study-sidebar {
  display: grid;
  gap: 14px;
}

.network-hero,
.bundle-hero {
  min-height: 0;
}

.source-summary {
  display: grid;
  gap: 10px;
  margin-bottom: 8px;
}

.source-summary-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--surface-2);
}

.source-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
}

.source-reading {
  color: var(--green);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
}

.source-title span:last-child {
  color: var(--muted);
  font-size: 13px;
}

.multi-character-strip {
  display: grid;
  gap: 8px;
  margin-bottom: 8px;
}

.multi-character-strip:empty {
  display: none;
}

.multi-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.multi-head strong {
  color: var(--text);
  font-size: 13px;
}

.multi-card-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
}

.multi-char-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 5px 8px;
  min-width: 0;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  text-align: left;
  background: rgba(255, 255, 255, 0.82);
  cursor: pointer;
}

.multi-char-card.active {
  border-color: var(--green);
  background: #f1faf6;
  box-shadow: 0 0 0 2px rgba(31, 122, 92, 0.12);
}

.multi-char-card span {
  grid-row: span 2;
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 30px;
  line-height: 1;
}

.multi-char-card strong,
.multi-char-card small {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.multi-char-card strong {
  font-size: 12px;
}

.multi-char-card small {
  color: var(--muted);
  font-size: 11px;
}

.pronunciation-graph {
  min-height: 430px;
  display: grid;
  gap: 12px;
}

.pronunciation-network-block {
  display: grid;
  gap: 10px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fbfcfb;
}

.pronunciation-network-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
}

.pronunciation-network-head h3 {
  margin: 0;
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 27px;
  line-height: 1;
}

.pronunciation-network-head span {
  min-width: 0;
  color: var(--muted);
  font-size: 12px;
  overflow: hidden;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.network-filter-strip {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-width: 0;
}

.network-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  border: 1px solid rgba(177, 119, 31, 0.32);
  border-radius: 999px;
  padding: 5px 6px 5px 9px;
  background: #fff7e8;
  color: var(--text);
  font-size: 12px;
}

.network-filter-chip strong {
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 20px;
  line-height: 1;
}

.network-filter-chip button {
  display: inline-grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 999px;
  padding: 0;
  background: rgba(255, 255, 255, 0.78);
  line-height: 1;
}

.lane-graph {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  align-items: start;
}

.pinned-char-tray {
  display: flex;
  gap: 7px;
  min-width: 0;
  overflow-x: auto;
  border: 1px solid rgba(177, 119, 31, 0.18);
  border-radius: 8px;
  padding: 7px;
  background: rgba(255, 253, 248, 0.86);
  scrollbar-width: thin;
}

.pinned-char {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  flex: 0 0 auto;
  gap: 6px;
  align-items: center;
  width: 150px;
  border-color: rgba(177, 119, 31, 0.28);
  background: #fff;
}

.pinned-char span {
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 24px;
  line-height: 1;
}

.pinned-char small {
  min-width: 0;
  color: var(--muted);
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.language-lane {
  display: grid;
  gap: 8px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--surface-2);
}

.language-lane.zh {
  border-color: rgba(166, 61, 64, 0.26);
}

.language-lane.ko {
  border-color: rgba(31, 122, 92, 0.28);
}

.language-lane.ja {
  border-color: rgba(47, 98, 163, 0.28);
}

.language-lane.yue {
  border-color: rgba(118, 80, 161, 0.28);
}

.language-lane.vi {
  border-color: rgba(155, 106, 34, 0.28);
}

.lane-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.lane-title strong {
  color: var(--text);
  font-size: 14px;
}

.lane-nodes {
  display: grid;
  gap: 8px;
}

.reading-node-card {
  display: grid;
  gap: 8px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

.reading-node-card.source {
  border-color: var(--green);
  background: #f1faf6;
}

.reading-node-card::before,
.bundle-node::before,
.bundle-3d-label::before {
  content: "";
  height: 3px;
  border-radius: 999px;
  background: var(--line-strong);
}

.reading-node-card.zh::before,
.bundle-node.zh::before,
.bundle-3d-label.zh::before {
  background: var(--red);
}

.reading-node-card.ko::before,
.bundle-node.ko::before,
.bundle-3d-label.ko::before {
  background: var(--green);
}

.reading-node-card.ja::before,
.bundle-node.ja::before,
.bundle-3d-label.ja::before {
  background: var(--blue);
}

.reading-node-card.yue::before,
.bundle-node.yue::before,
.bundle-3d-label.yue::before {
  background: var(--violet);
}

.reading-node-card.vi::before,
.bundle-node.vi::before,
.bundle-3d-label.vi::before {
  background: var(--amber);
}

.reading-node-card.is-active-reading,
.bundle-node.is-active-reading,
.bundle-reading.is-active-reading {
  border-color: var(--amber);
  box-shadow: 0 0 0 2px rgba(177, 119, 31, 0.22);
}

.reading-node-card.is-linked-reading,
.bundle-node.is-linked-reading,
.bundle-reading.is-linked-reading {
  border-color: var(--green);
  background: #f1faf6;
  box-shadow: 0 0 0 2px rgba(31, 122, 92, 0.14);
}

.reading-node-card.is-muted-reading,
.bundle-node.is-muted-reading,
.bundle-reading.is-muted-reading {
  opacity: 0.34;
}

.reading-node-card.is-locked-reading,
.bundle-node.is-locked-reading,
.bundle-reading.is-locked-reading,
.bundle-3d-label.is-locked-reading {
  border-color: var(--amber);
  box-shadow:
    0 0 0 2px rgba(177, 119, 31, 0.2),
    0 18px 42px rgba(31, 41, 55, 0.14);
}

.reading-node-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.reading-node-head strong {
  min-width: 0;
  font-size: 18px;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.reading-node-head span {
  flex: none;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.reading-node-meter {
  height: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(31, 41, 55, 0.08);
}

.reading-node-meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: currentColor;
  opacity: 0.55;
}

.node-char-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.scrollable-char-row {
  align-content: flex-start;
  max-height: 116px;
  overflow-y: auto;
  padding: 2px 3px 2px 0;
  scrollbar-width: thin;
}

.node-char {
  min-width: 34px;
  height: 34px;
  padding: 0 4px;
  border-radius: 8px;
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 21px;
  line-height: 1;
  background: var(--surface);
}

.node-char.is-pinned-char {
  border-color: rgba(177, 119, 31, 0.48);
  background: #fff7e8;
  box-shadow: inset 0 0 0 1px rgba(177, 119, 31, 0.16);
}

.node-char.is-filter-char {
  border-color: var(--amber);
  background: #fff0cf;
  box-shadow:
    inset 0 0 0 1px rgba(177, 119, 31, 0.22),
    0 0 0 2px rgba(177, 119, 31, 0.14);
}

.char-more {
  align-self: center;
  border: 1px dashed var(--line-strong);
  border-radius: 999px;
  padding: 5px 8px;
  color: var(--muted);
  font-size: 12px;
}

.branch-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.bundle-board {
  grid-column: 1 / -1;
  display: grid;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--surface-2);
}

.bundle-board-3d {
  gap: 8px;
  border: 0;
  padding: 0;
  background: transparent;
}

.bundle-title,
.bundle-readings,
.bundle-support {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bundle-title {
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
}

.bundle-title > div:first-child {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.bundle-title strong {
  color: var(--text);
  font-size: 14px;
}

.graph-language-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.graph-lang-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 9px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  user-select: none;
}

.graph-lang-chip input {
  width: 13px;
  height: 13px;
  accent-color: var(--green);
}

.graph-lang-chip.active {
  color: var(--text);
  background: #fff;
}

.graph-lang-chip.source {
  border-color: rgba(31, 122, 92, 0.34);
  color: var(--green);
  cursor: default;
}

.graph-lang-chip.zh.active {
  border-color: rgba(166, 61, 64, 0.36);
}

.graph-lang-chip.ko.active {
  border-color: rgba(31, 122, 92, 0.38);
}

.graph-lang-chip.ja.active {
  border-color: rgba(47, 98, 163, 0.38);
}

.graph-lang-chip.yue.active {
  border-color: rgba(118, 80, 161, 0.38);
}

.graph-lang-chip.vi.active {
  border-color: rgba(155, 106, 34, 0.38);
}

.locked-combo {
  position: absolute;
  z-index: 3200;
  top: 14px;
  left: 50%;
  display: grid;
  gap: 9px;
  width: min(760px, calc(100% - 28px));
  border: 1px solid rgba(177, 119, 31, 0.26);
  border-radius: 8px;
  padding: 10px;
  background: rgba(255, 253, 248, 0.92);
  box-shadow:
    0 18px 48px rgba(31, 41, 55, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  pointer-events: auto;
  transform: translateX(-50%);
}

.locked-head,
.locked-readings {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.locked-head span {
  color: var(--muted);
  font-size: 12px;
}

.locked-readings {
  justify-content: flex-start;
}

.locked-reading {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 9px;
  background: #fff;
  color: var(--muted);
  font-size: 12px;
}

.locked-reading strong {
  color: var(--text);
}

.locked-reading.zh {
  border-color: rgba(166, 61, 64, 0.32);
}

.locked-reading.ko {
  border-color: rgba(31, 122, 92, 0.34);
}

.locked-reading.ja {
  border-color: rgba(47, 98, 163, 0.34);
}

.locked-reading.yue {
  border-color: rgba(118, 80, 161, 0.34);
}

.locked-reading.vi {
  border-color: rgba(155, 106, 34, 0.34);
}

.locked-reading.empty {
  border-style: dashed;
}

.locked-char-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.locked-char {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px;
  align-items: center;
  max-width: 176px;
  border: 1px solid rgba(177, 119, 31, 0.16);
  border-radius: 8px;
  padding: 6px 8px;
  background: rgba(255, 255, 255, 0.86);
}

.locked-char span {
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 24px;
  line-height: 1;
}

.locked-char small {
  min-width: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bundle-list {
  display: grid;
  gap: 8px;
}

.bundle-scene {
  position: relative;
  min-height: 700px;
  overflow: hidden;
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 7%, rgba(118, 80, 161, 0.12), transparent 22%),
    radial-gradient(circle at 50% 94%, rgba(155, 106, 34, 0.12), transparent 24%),
    linear-gradient(90deg, rgba(166, 61, 64, 0.08), transparent 32%, transparent 68%, rgba(47, 98, 163, 0.08)),
    #fbfcfb;
}

.bundle-canvas,
.bundle-scene-labels {
  position: absolute;
  inset: 0;
}

.bundle-canvas {
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.bundle-scene-labels {
  pointer-events: none;
}

.bundle-3d-label {
  position: absolute;
  display: grid;
  gap: 6px;
  min-width: 116px;
  max-width: 168px;
  padding: 10px 11px 11px 15px;
  border: 1px solid rgba(31, 41, 55, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 249, 0.82)),
    rgba(255, 255, 255, 0.9);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.86),
    inset 0 -1px 0 rgba(31, 41, 55, 0.04),
    0 16px 36px rgba(31, 41, 55, 0.16);
  backdrop-filter: blur(10px);
  color: var(--green);
  pointer-events: auto;
  text-align: left;
  transition:
    opacity 160ms ease,
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.bundle-3d-label::before {
  position: absolute;
  inset: 9px auto 9px 8px;
  width: 4px;
  height: auto;
  border-radius: 999px;
}

.bundle-3d-label.zh {
  border-color: rgba(166, 61, 64, 0.36);
  color: var(--red);
}

.bundle-3d-label.ko {
  border-color: rgba(31, 122, 92, 0.38);
  color: var(--green);
}

.bundle-3d-label.ja {
  border-color: rgba(47, 98, 163, 0.38);
  color: var(--blue);
}

.bundle-3d-label.yue {
  border-color: rgba(118, 80, 161, 0.38);
  color: var(--violet);
}

.bundle-3d-label.vi {
  border-color: rgba(155, 106, 34, 0.38);
  color: var(--amber);
}

.bundle-3d-label.source {
  min-width: 148px;
  background:
    linear-gradient(145deg, rgba(241, 250, 246, 0.98), rgba(255, 255, 255, 0.9)),
    rgba(241, 250, 246, 0.94);
}

.node-cap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.bundle-3d-label small,
.node-cap span {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.1;
}

.bundle-3d-label strong {
  color: var(--text);
  font-size: 22px;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.node-meter {
  display: block;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(31, 41, 55, 0.08);
}

.node-meter::before {
  content: "";
  display: block;
  width: var(--node-meter, 20%);
  height: 100%;
  border-radius: inherit;
  background: currentColor;
  opacity: 0.68;
}

.bundle-3d-label em {
  color: var(--muted);
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 16px;
  font-style: normal;
  line-height: 1.12;
  overflow-wrap: anywhere;
}

.bundle-3d-label.is-active-reading {
  box-shadow:
    0 0 0 2px rgba(177, 119, 31, 0.2),
    0 22px 52px rgba(177, 119, 31, 0.24);
}

.bundle-3d-label.is-linked-reading {
  box-shadow:
    0 0 0 2px rgba(31, 122, 92, 0.14),
    0 20px 48px rgba(31, 122, 92, 0.18);
}

.bundle-3d-label.is-muted-reading {
  opacity: 0.24;
}

.bundle-depth-axis {
  position: absolute;
  inset: auto 18px 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  pointer-events: none;
  color: var(--muted);
  font-size: 12px;
}

.bundle-depth-axis span:nth-child(2) {
  text-align: center;
}

.bundle-depth-axis span:nth-child(3) {
  text-align: right;
}

.bundle-vertical-axis {
  position: absolute;
  inset: 14px auto 14px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  max-width: min(260px, 42%);
  pointer-events: none;
  color: var(--muted);
  font-size: 12px;
}

.bundle-vertical-axis span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bundle-path-list {
  display: grid;
  gap: 9px;
}

.bundle-path-list.compact {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.bundle-path-list.compact .bundle-path {
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
}

.bundle-path-list.compact .bundle-node {
  min-height: 54px;
  padding: 8px;
}

.bundle-path-list.compact .bundle-node strong {
  font-size: 16px;
}

.bundle-path-list.compact .bundle-arrow {
  display: none;
}

.bundle-path-list.compact .bundle-path-support {
  border-top: 1px solid var(--line);
  padding-top: 6px;
}

.bundle-path {
  display: grid;
  grid-template-columns: minmax(130px, 1fr) 28px minmax(130px, 1fr) 28px minmax(130px, 1fr) minmax(180px, 260px);
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

.bundle-path.is-active-path {
  border-color: rgba(31, 122, 92, 0.48);
  background: #fbfefd;
}

.bundle-path.is-muted-path {
  opacity: 0.28;
}

.bundle-path.is-locked-path {
  border-color: rgba(177, 119, 31, 0.42);
  background: #fffdf8;
}

.bundle-node {
  display: grid;
  gap: 5px;
  min-width: 0;
  min-height: 70px;
  align-content: center;
  text-align: left;
  border-radius: 8px;
  padding: 10px;
  background: var(--surface-2);
}

.bundle-node.zh {
  border-color: rgba(166, 61, 64, 0.32);
}

.bundle-node.ko {
  border-color: rgba(31, 122, 92, 0.34);
}

.bundle-node.ja {
  border-color: rgba(47, 98, 163, 0.34);
}

.bundle-node.source {
  background: #f1faf6;
}

.bundle-node small {
  color: var(--muted);
  font-size: 11px;
}

.bundle-node strong {
  font-size: 20px;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.bundle-arrow {
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 20px;
  font-weight: 800;
}

.bundle-path-support {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.bundle-path-support strong {
  color: var(--muted);
  font-size: 13px;
}

.bundle-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 260px);
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px;
  background: #fff;
}

.bundle-readings {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.bundle-reading {
  display: grid;
  gap: 3px;
  min-width: 0;
  border-left: 3px solid var(--line-strong);
  padding-left: 8px;
}

.bundle-reading.zh {
  border-color: var(--red);
}

.bundle-reading.ko {
  border-color: var(--green);
}

.bundle-reading.ja {
  border-color: var(--blue);
}

.bundle-reading.source {
  background: #f1faf6;
}

.bundle-reading small {
  color: var(--muted);
  font-size: 11px;
}

.bundle-reading strong {
  font-size: 15px;
  overflow-wrap: anywhere;
}

.bundle-support {
  justify-content: space-between;
}

.bundle-support strong {
  flex: none;
  font-size: 13px;
}

.branch-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--surface-2);
}

.branch-card.ko {
  border-color: rgba(31, 122, 92, 0.28);
}

.branch-card.ja {
  border-color: rgba(47, 98, 163, 0.28);
}

.branch-card.zh {
  border-color: rgba(166, 61, 64, 0.28);
}

.branch-card.yue {
  border-color: rgba(118, 80, 161, 0.28);
}

.branch-card.vi {
  border-color: rgba(155, 106, 34, 0.28);
}

.branch-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.branch-head h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
}

.branch-head p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.branch-score {
  display: grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-weight: 800;
  font-size: 13px;
}

.char-strip {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(58px, 1fr));
  gap: 6px;
  margin-top: 10px;
}

.cluster-stack {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.phonetic-cluster {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  background: #fff;
}

.cluster-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.cluster-head strong {
  color: var(--text);
  font-size: 12px;
}

.phonetic-cluster .char-strip {
  margin-top: 7px;
}

.branch-char {
  min-width: 0;
  min-height: 58px;
  padding: 6px 4px;
  border-radius: 8px;
  background: #fff;
}

.branch-char.active {
  border-color: var(--green);
  background: #f1faf6;
}

.branch-char span {
  display: block;
  font-family: "Noto Serif CJK KR", "Source Han Serif KR", serif;
  font-size: 24px;
  line-height: 1;
}

.branch-char small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
  overflow-wrap: anywhere;
}

.evolution-lanes {
  display: grid;
  gap: 10px;
}

.evolution-lane {
  display: grid;
  gap: 8px;
}

.evolution-lane h3 {
  margin: 0;
  font-size: 14px;
}

.stage-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
}

.stage {
  min-height: 76px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--surface-2);
}

.stage strong,
.stage span {
  display: block;
}

.stage strong {
  font-size: 12px;
}

.stage span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.stage.unavailable {
  border-style: dashed;
  opacity: 0.72;
}

.compact-character .character-head {
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 12px;
}

.compact-character .glyph {
  font-size: 60px;
}

.compact-character .character-copy h2 {
  font-size: 17px;
}

.compact-character .reading-cards {
  grid-template-columns: 1fr;
}

.map-chip.ko {
  color: var(--green);
}

.map-chip.ja {
  color: var(--blue);
}

.map-chip.zh {
  color: var(--red);
}

.map-chip.yue {
  color: var(--violet);
}

.map-chip.vi {
  color: var(--amber);
}

@media (max-width: 1180px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .quick-picks {
    justify-content: flex-start;
  }

  .workspace {
    grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
  }

  .right-rail {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .training-layout {
    grid-template-columns: 1fr;
  }

  .lane-graph {
    grid-template-columns: 1fr;
  }

  .source-summary-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .bundle-path {
    grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr);
  }

  .bundle-path-support {
    grid-column: 1 / -1;
  }

  .study-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .app-shell {
    padding: 10px;
  }

  .workspace,
  .right-rail,
  .study-sidebar,
  .training-layout,
  .branch-grid {
    grid-template-columns: 1fr;
  }

  .network-search {
    grid-template-columns: 1fr;
  }

  .bundle-row,
  .bundle-readings,
  .bundle-path {
    grid-template-columns: 1fr;
  }

  .bundle-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .graph-language-controls {
    justify-content: flex-start;
  }

  .bundle-scene {
    min-height: 680px;
  }

  .locked-combo {
    top: 10px;
    width: calc(100% - 20px);
    padding: 8px;
  }

  .locked-char {
    max-width: 150px;
  }

  .bundle-3d-label {
    min-width: 92px;
    max-width: 126px;
    padding: 7px 8px 8px 12px;
  }

  .bundle-3d-label strong {
    font-size: 17px;
  }

  .bundle-3d-label em {
    font-size: 12px;
  }

  .bundle-arrow {
    transform: rotate(90deg);
  }

  .character-head {
    grid-template-columns: 96px minmax(0, 1fr);
  }

  .glyph {
    font-size: 62px;
  }

  .character-copy h2 {
    font-size: 19px;
  }

  .reading-cards {
    grid-template-columns: 1fr;
  }
}