:root {
  color-scheme: light;
  --surface: #f5f7fa;
  --surface-raised: #ffffff;
  --surface-muted: #eef2f5;
  --ink: #18232d;
  --ink-soft: #52616c;
  --ink-faint: #74828d;
  --line: #d9e0e5;
  --line-strong: #b9c6ce;
  --accent: #1d5660;
  --accent-strong: #123e46;
  --accent-soft: #e7f1f2;
  --link: #1d5da8;
  --warning: #9b5b12;
  --warning-soft: #fff2dc;
  --danger: #a52c38;
  --danger-soft: #fbeaec;
  --success: #25704d;
  --success-soft: #e6f4ec;
  --shadow-soft: 0 18px 44px rgba(24, 35, 45, 0.07);
  --radius: 8px;
  --max-width: 1440px;
  font-family: "Atkinson Hyperlegible", "PingFang SC", "Microsoft YaHei", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
}

button,
input,
select {
  font: inherit;
}

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

button,
a,
select {
  cursor: pointer;
}

a {
  color: var(--link);
}

a:hover {
  color: var(--accent-strong);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(29, 93, 168, 0.35);
  outline-offset: 2px;
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  transform: translateY(calc(-100% - 12px));
  padding: 9px 13px;
  border: 2px solid var(--accent-strong);
  border-radius: 6px;
  background: var(--surface-raised);
  color: var(--accent-strong);
  font-weight: 700;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
  padding: 12px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent-strong);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1;
}

.brand-name {
  font-size: 16px;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-faint);
  font-size: 12px;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.site-nav-link {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 5px 10px;
  border-bottom: 2px solid transparent;
  color: var(--ink-soft);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 160ms ease, color 160ms ease, background-color 160ms ease;
}

.site-nav-link:hover,
.site-nav-link.is-active {
  border-bottom-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.topbar-kicker,
.eyebrow,
.section-kicker {
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.dataset-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.dataset-state::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--warning);
  content: "";
}

.dataset-state[data-state="ready"]::before {
  background: var(--success);
}

.dataset-state[data-state="error"]::before {
  background: var(--danger);
}

.workspace {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 42px clamp(18px, 4vw, 56px) 64px;
}

.overview {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.index-notes {
  display: grid;
  grid-template-columns: minmax(220px, 0.86fr) minmax(0, 1.7fr);
  gap: clamp(24px, 4vw, 52px);
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.index-notes-main h2 {
  margin: 4px 0 7px;
  font-size: 18px;
  line-height: 1.25;
}

.index-notes-main p {
  max-width: 520px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.index-notes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.index-note-item {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 8px;
  align-content: start;
  min-width: 0;
  padding: 2px 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.index-note-item strong {
  color: var(--ink);
  font-size: 13px;
}

.index-note-item > span:last-child {
  grid-column: 2;
  margin-top: 2px;
}

.note-marker {
  width: 8px;
  height: 8px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--warning);
}

.note-marker-evidence {
  background: var(--link);
}

.note-marker-source {
  background: var(--success);
}

.note-marker-priority {
  background: var(--accent);
}

.overview-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-top: 10px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.1;
}

.overview-copy {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.overview-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(78px, 1fr));
  min-width: min(100%, 330px);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.metric {
  display: grid;
  gap: 2px;
  padding: 10px 14px 9px;
}

.metric + .metric {
  border-left: 1px solid var(--line);
}

.metric-value {
  color: var(--ink);
  font-size: 21px;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  line-height: 1.2;
}

.metric-label {
  color: var(--ink-faint);
  font-size: 12px;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(260px, 314px) minmax(0, 1fr);
  align-items: start;
  gap: clamp(24px, 4vw, 50px);
  padding-top: 30px;
}

.index-panel {
  position: sticky;
  top: 20px;
  min-width: 0;
}

.panel-heading,
.section-heading,
.list-toolbar,
.title-row,
.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.panel-heading {
  align-items: flex-end;
  margin-bottom: 14px;
}

.panel-heading h2,
.section-heading h3 {
  margin: 3px 0 0;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.2;
}

.result-count,
.section-count {
  color: var(--ink-faint);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.search-control {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 45px;
  padding: 0 11px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-raised);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.search-control:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(29, 86, 96, 0.12);
}

.search-icon {
  position: relative;
  width: 15px;
  height: 15px;
  flex: 0 0 15px;
  border: 1.7px solid var(--ink-soft);
  border-radius: 50%;
}

.search-icon::after {
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 6px;
  height: 1.7px;
  transform: rotate(45deg);
  transform-origin: left center;
  background: var(--ink-soft);
  content: "";
}

.search-control input {
  min-width: 0;
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
}

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

kbd {
  padding: 1px 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-muted);
  color: var(--ink-faint);
  font-family: inherit;
  font-size: 11px;
}

.filter-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.filter-field-audit {
  grid-column: 1 / -1;
}

.filter-field {
  display: grid;
  gap: 4px;
  color: var(--ink-faint);
  font-size: 11px;
}

.filter-field select {
  width: 100%;
  min-height: 37px;
  padding: 5px 24px 5px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-raised);
  color: var(--ink);
  font-size: 13px;
}

.directory-panel {
  margin-top: 16px;
  padding: 13px 0 0;
  border-top: 1px solid var(--line);
}

.directory-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.directory-heading h3 {
  margin: 3px 0 0;
  font-size: 15px;
  line-height: 1.2;
}

.directory-tree {
  display: grid;
  gap: 2px;
  max-height: 212px;
  overflow: auto;
  padding-right: 3px;
}

.directory-node {
  display: grid;
  gap: 1px;
}

.directory-children {
  display: grid;
  gap: 1px;
  margin-left: 18px;
  border-left: 1px solid var(--line);
}

.directory-item {
  display: flex;
  width: 100%;
  min-height: 30px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 5px 8px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 12px;
  text-align: left;
  transition: background-color 150ms ease, color 150ms ease;
}

.directory-item:hover,
.directory-item[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.directory-label {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.directory-symbol {
  width: 12px;
  color: var(--accent);
  text-align: center;
}

.directory-count {
  flex: 0 0 auto;
  color: var(--ink-faint);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.list-toolbar {
  flex-wrap: wrap;
  row-gap: 4px;
  min-height: 42px;
  padding-top: 6px;
  padding-bottom: 6px;
  margin-top: 10px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 12px;
}

.list-toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px 12px;
  min-width: 0;
}

.sort-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-faint);
  font-size: 11px;
  white-space: nowrap;
}

.sort-control select {
  min-height: 29px;
  padding: 3px 22px 3px 7px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-raised);
  color: var(--ink-soft);
  font-size: 11px;
}

.text-button {
  min-height: 34px;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--link);
  font-size: 12px;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.text-button:hover {
  color: var(--accent-strong);
  text-decoration-color: currentColor;
}

#copy-queue {
  min-height: 44px;
  white-space: nowrap;
}

#copy-queue:disabled {
  color: var(--ink-faint);
  cursor: not-allowed;
  text-decoration: none;
}

.concept-list {
  max-height: min(68vh, 720px);
  overflow: auto;
  border-bottom: 1px solid var(--line);
}

.list-pagination {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.page-button {
  min-height: 38px;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--surface-raised);
  color: var(--accent-strong);
  font-size: 12px;
}

.page-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.page-indicator {
  color: var(--ink-soft);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.concept-item-wrap {
  display: block;
  min-width: 0;
}

.concept-item {
  display: block;
  width: 100%;
  min-height: 71px;
  padding: 12px 12px 11px 14px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid transparent;
  background: transparent;
  color: var(--ink);
  text-align: left;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.concept-item-wrap:last-child .concept-item {
  border-bottom: 0;
}

.concept-item:hover {
  background: rgba(231, 241, 242, 0.65);
}

.concept-item[aria-current="true"] {
  border-left-color: var(--accent);
  background: var(--accent-soft);
}

.concept-item-title {
  display: block;
  overflow: hidden;
  margin-bottom: 3px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.concept-item-audit {
  display: inline-flex;
  max-width: 100%;
  margin: 0 0 5px;
  padding: 2px 6px;
  border: 1px solid #e8c894;
  border-radius: 4px;
  background: var(--warning-soft);
  color: #74450e;
  font-size: 10px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.mobile-return {
  display: none;
}

.concept-item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  color: var(--ink-faint);
  font-size: 11px;
}

.concept-item-status {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-dot {
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  border-radius: 50%;
  background: var(--warning);
}

.status-dot.status-confirmed,
.status-dot.status-verified {
  background: var(--success);
}

.status-dot.status-review,
.status-dot.status-needs-review {
  background: var(--warning);
}

.status-dot.status-rejected,
.status-dot.status-error {
  background: var(--danger);
}

.concept-item-priority {
  color: var(--ink-faint);
}

.concept-item-priority.priority-high,
.review-priority-badge.priority-high {
  color: var(--accent-strong);
}

.concept-item-priority.priority-medium,
.review-priority-badge.priority-medium {
  color: var(--warning);
}

.concept-item-priority.priority-low,
.review-priority-badge.priority-low {
  color: var(--ink-faint);
}

.content-panel {
  min-width: 0;
}

.loading-state {
  display: grid;
  gap: 12px;
  max-width: 640px;
  padding: 32px 0;
}

.loading-line {
  display: block;
  width: 72%;
  height: 15px;
  border-radius: 4px;
  background: var(--surface-muted);
  animation: loading-pulse 1.5s ease-in-out infinite;
}

.loading-line-wide {
  width: 92%;
  height: 34px;
}

.loading-line-short {
  width: 46%;
}

.loading-note {
  margin-top: 4px;
  color: var(--ink-faint);
  font-size: 13px;
}

@keyframes loading-pulse {
  0%,
  100% {
    opacity: 0.52;
  }
  50% {
    opacity: 1;
  }
}

.notice {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--danger);
  background: var(--danger-soft);
  color: var(--ink-soft);
  font-size: 14px;
}

.notice strong {
  color: var(--danger);
}

.notice .text-button {
  justify-self: start;
}

.empty-state {
  display: grid;
  justify-items: start;
  max-width: 510px;
  padding: 52px 0;
}

.empty-mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 16px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--ink-faint);
  font-size: 24px;
}

.empty-state h2 {
  margin-bottom: 7px;
  font-size: 23px;
}

.empty-state p {
  margin-bottom: 18px;
  color: var(--ink-soft);
}

.button {
  min-height: 42px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.button-primary:hover {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
}

.concept-detail {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-raised);
  box-shadow: var(--shadow-soft);
}

.detail-header {
  align-items: flex-start;
  gap: 24px;
  padding: clamp(22px, 4vw, 38px);
  border-bottom: 1px solid var(--line);
}

.detail-heading {
  min-width: 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 11px;
  color: var(--ink-faint);
  font-size: 12px;
}

.breadcrumb-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--link);
  font-size: inherit;
  text-decoration: none;
}

.breadcrumb-link:hover {
  color: var(--accent-strong);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.breadcrumb-label,
.breadcrumb-current {
  color: var(--ink-faint);
}

.breadcrumb-current {
  overflow: hidden;
  max-width: min(48vw, 380px);
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.title-row {
  justify-content: flex-start;
  align-items: baseline;
  flex-wrap: wrap;
  row-gap: 6px;
}

.title-row h2 {
  max-width: 100%;
  margin: 0;
  color: var(--ink);
  font-size: clamp(27px, 4vw, 42px);
  line-height: 1.12;
  overflow-wrap: anywhere;
}

#detail-title:focus {
  border-radius: 2px;
  outline: 2px solid rgba(29, 93, 168, 0.45);
  outline-offset: 4px;
}

.concept-code {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink-faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
}

.aliases {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.detail-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 15px;
}

.permalink-button,
.permalink-link {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: transparent;
  color: var(--link);
  font-size: 12px;
  text-decoration: none;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.permalink-button:hover,
.permalink-link:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.copy-status {
  min-height: 20px;
  color: var(--success);
  font-size: 12px;
}

.status-badge {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  flex: 0 0 auto;
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.status-badge.status-confirmed,
.status-badge.status-verified {
  border-color: #a7d2b9;
  background: var(--success-soft);
  color: var(--success);
}

.status-badge.status-review,
.status-badge.status-needs-review,
.status-badge.status-candidate {
  border-color: #e4c88e;
  background: var(--warning-soft);
  color: var(--warning);
}

.status-badge.status-rejected,
.status-badge.status-error {
  border-color: #e1a6ae;
  background: var(--danger-soft);
  color: var(--danger);
}

.detail-summary {
  padding: 25px clamp(22px, 4vw, 38px) 26px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.7;
  white-space: pre-wrap;
}

.review-panel {
  display: grid;
  gap: 12px;
  padding: 22px clamp(22px, 4vw, 38px) 23px;
  border-bottom: 1px solid var(--line);
  background: #f7fafb;
}

.review-panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.review-panel-heading h3 {
  margin: 3px 0 0;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.25;
}

.review-priority-badge {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  flex: 0 0 auto;
  padding: 4px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface-raised);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.review-guidance {
  max-width: 780px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.65;
}

.review-reasons {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.review-reason {
  display: inline-flex;
  min-height: 25px;
  align-items: center;
  padding: 3px 8px;
  border: 1px solid #c7dadd;
  border-radius: 4px;
  background: #edf5f5;
  color: var(--accent-strong);
  font-size: 11px;
}

.review-reason-muted {
  border-color: var(--line);
  background: var(--surface-muted);
  color: var(--ink-faint);
}

.review-record {
  display: grid;
  gap: 14px;
  padding: 15px;
  border: 1px solid #c7dadd;
  border-radius: 6px;
  background: var(--surface-raised);
}

.review-record-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px 13px;
  color: var(--ink-faint);
  font-size: 11px;
}

.review-record-human {
  margin: -6px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
}

.review-record-meta strong,
.review-record-definition strong,
.review-record-sources > strong,
.review-record-evidence > strong,
.review-record-observations > strong,
.review-record-lists > div > strong {
  color: var(--accent-strong);
  font-size: 12px;
}

.review-record-definition,
.review-record-sources,
.review-record-evidence,
.review-record-observations,
.review-record-lists > div {
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.review-record-definition p {
  margin: 6px 0 0;
  color: var(--ink);
  white-space: pre-wrap;
}

.review-record-sources ul {
  display: grid;
  gap: 5px;
  margin: 6px 0 0;
  padding-left: 18px;
  overflow-wrap: anywhere;
}

.review-record-sources a {
  color: var(--link);
  text-decoration: none;
}

.review-record-sources a:hover {
  text-decoration: underline;
}

.review-record-evidence {
  display: grid;
  gap: 8px;
}

.review-record-observations {
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.review-record-observations ul {
  display: grid;
  gap: 8px;
  margin: 6px 0 0;
  padding-left: 18px;
}

.reviewer-tag,
.evidence-quality-tag {
  display: inline-flex;
  min-height: 20px;
  align-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(129, 99, 66, 0.09);
  color: var(--ink-soft);
  font-size: 10px;
}

.review-record-evidence blockquote {
  margin: 0;
  padding: 10px 12px;
  border-left: 3px solid var(--accent);
  background: #f7fafb;
}

.review-record-evidence blockquote p {
  margin: 0 0 5px;
  color: var(--ink);
}

.review-record-evidence cite {
  color: var(--ink-faint);
  font-size: 11px;
  font-style: normal;
}

.review-record-evidence a {
  color: var(--link);
  text-decoration: none;
}

.review-record-evidence a:hover {
  text-decoration: underline;
}

.review-record-lists {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px 20px;
}

.review-record-lists ul {
  margin: 5px 0 0;
  padding-left: 18px;
}

.review-record-lists li + li {
  margin-top: 3px;
}

.relation-evidence {
  display: grid;
  gap: 4px;
  margin-top: 5px;
}

.relation-evidence small {
  color: var(--ink-muted);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.55;
}

.relation-evidence a {
  color: var(--link);
  text-decoration: none;
}

.relation-evidence a:hover {
  text-decoration: underline;
}

.quality-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
  background: #fbfcfd;
}

.quality-cell {
  display: grid;
  gap: 4px;
  min-height: 72px;
  align-content: center;
  padding: 12px clamp(14px, 3vw, 26px);
}

.quality-cell + .quality-cell {
  border-left: 1px solid var(--line);
}

.quality-label {
  color: var(--ink-faint);
  font-size: 11px;
}

.quality-cell strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(200px, 0.72fr) minmax(0, 1.7fr);
}

.source-section {
  border-bottom: 1px solid var(--line);
}

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

.source-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  min-width: 0;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcfd;
}

.source-card-main {
  min-width: 0;
}

.source-actions {
  display: grid;
  flex: 0 0 auto;
  justify-items: end;
  gap: 3px;
}

.source-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 9px;
  margin-bottom: 7px;
  color: var(--ink-faint);
  font-size: 11px;
}

.source-record-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin-top: 8px;
  overflow-wrap: anywhere;
}

.source-record-link {
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.5;
  text-decoration: none;
}

a.source-record-link:hover {
  color: var(--accent-strong);
  text-decoration: underline;
}

.section-note {
  max-width: 58rem;
  margin: -5px 0 15px;
  color: var(--ink-muted);
  font-size: 13px;
  line-height: 1.6;
}

.source-card h4 {
  overflow: hidden;
  margin: 0;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.4;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.source-open {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  min-height: 28px;
  color: var(--link);
  font-size: 12px;
  text-decoration: none;
  white-space: nowrap;
}

.source-open:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.source-archive,
.evidence-archive {
  color: var(--ink-soft);
}

.detail-section {
  min-width: 0;
  padding: clamp(22px, 4vw, 34px);
}

.detail-section + .detail-section {
  border-left: 1px solid var(--line);
}

.section-heading {
  align-items: flex-end;
  margin-bottom: 18px;
}

.relations,
.evidence-list {
  display: grid;
  gap: 10px;
}

.relation-link {
  display: grid;
  gap: 2px;
  width: 100%;
  padding: 10px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--ink);
  text-align: left;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.relation-link:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.relation-type {
  color: var(--ink-faint);
  font-size: 11px;
}

.relation-title {
  color: var(--link);
  font-size: 14px;
  font-weight: 700;
}

.evidence-card {
  padding: 15px 16px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-raised);
}

.evidence-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px 10px;
  margin-bottom: 8px;
  color: var(--ink-faint);
  font-size: 11px;
}

.evidence-source {
  color: var(--ink-soft);
  font-weight: 700;
}

.evidence-kind {
  display: inline-flex;
  min-height: 22px;
  align-items: center;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--surface-muted);
}

.evidence-source-role {
  display: inline-flex;
  min-height: 22px;
  align-items: center;
  padding: 2px 7px;
  border-radius: 4px;
  background: #e8f0f1;
  color: var(--accent-strong);
  font-size: 11px;
}

.evidence-text {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.65;
  white-space: pre-wrap;
}

.evidence-link {
  display: inline-flex;
  margin-top: 10px;
  font-size: 12px;
}

.evidence-empty {
  padding: 15px 0;
  color: var(--ink-faint);
  font-size: 13px;
}

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

[hidden] {
  display: none !important;
}

@media (max-width: 930px) {
  .topbar {
    flex-wrap: wrap;
  }

  .site-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    border-top: 1px solid var(--line);
  }

  .site-nav-link {
    flex: 1;
    justify-content: center;
  }

  .index-notes {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .overview-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
  }

  .overview-metrics {
    width: min(100%, 430px);
  }

  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .index-panel {
    position: static;
  }

  .concept-detail {
    scroll-margin-top: 12px;
  }

  .mobile-return {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    gap: 7px;
    margin: 0 0 14px;
    padding: 6px 12px;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    background: var(--surface-raised);
    color: var(--accent-strong);
    font-weight: 700;
  }

  .mobile-return::before {
    content: "←";
    font-size: 18px;
    line-height: 1;
  }

  .concept-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: 340px;
    overflow: auto;
  }

  .concept-item-wrap:nth-child(odd) .concept-item {
    border-right: 1px solid var(--line);
  }

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

  .source-list {
    grid-template-columns: 1fr;
  }

  .detail-section + .detail-section {
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 620px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    padding-top: 14px;
    padding-bottom: 13px;
  }

  .topbar-meta {
    width: 100%;
    justify-content: space-between;
  }

  .site-nav {
    width: calc(100% + 2px);
    margin-top: 1px;
  }

  .site-nav-link {
    padding-right: 5px;
    padding-left: 5px;
    font-size: 12px;
  }

  .workspace {
    padding-top: 30px;
  }

  .overview {
    padding-bottom: 25px;
  }

  h1 {
    font-size: 30px;
  }

  .overview-metrics {
    width: 100%;
  }

  .list-toolbar {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 6px;
    padding-top: 7px;
    padding-bottom: 7px;
  }

  .list-toolbar-actions {
    width: 100%;
    justify-content: space-between;
  }

  .index-notes-grid {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .metric {
    padding-right: 9px;
    padding-left: 9px;
  }

  .concept-list {
    display: block;
    max-height: 300px;
  }

  .page-button {
    min-height: 44px;
  }

  .concept-item-wrap:nth-child(odd) .concept-item {
    border-right: 0;
  }

  .detail-header {
    flex-direction: column;
    gap: 15px;
  }

  .review-panel-heading {
    flex-direction: column;
    gap: 10px;
  }

  .review-record-lists {
    grid-template-columns: 1fr;
  }

  .breadcrumb-current {
    max-width: 60vw;
  }

  .source-card {
    display: grid;
    gap: 8px;
  }

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

  .quality-cell:nth-child(3) {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .quality-cell:nth-child(4) {
    border-top: 1px solid var(--line);
  }
}

.course-page {
  width: min(var(--max-width), 100%);
  margin: 0 auto;
  padding: clamp(22px, 4vw, 48px) clamp(16px, 4vw, 56px) 72px;
}

.course-breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--ink-faint);
  font-size: 12px;
}

.course-breadcrumb a {
  color: var(--ink-soft);
  text-decoration: none;
}

.course-breadcrumb a:hover {
  color: var(--link);
  text-decoration: underline;
}

.course-hero {
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-raised);
  box-shadow: var(--shadow-soft);
}

.course-hero h1 {
  margin: 8px 0 10px;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.course-hero > p {
  max-width: 780px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.course-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  max-width: 850px;
  margin-top: 28px;
}

.course-metric {
  display: grid;
  gap: 3px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
}

.course-metric strong {
  color: var(--accent-strong);
  font-size: 22px;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.course-metric span {
  color: var(--ink-faint);
  font-size: 11px;
}

.course-browser {
  margin-top: 34px;
}

.course-browser-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 14px;
}

.course-browser-heading h2 {
  margin: 3px 0 0;
  font-size: 21px;
  line-height: 1.25;
}

.course-search {
  max-width: 700px;
  min-height: 48px;
}

.course-search-note {
  margin: 8px 0 18px;
  color: var(--ink-faint);
  font-size: 12px;
}

.course-error {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0;
  padding: 12px 15px;
}

.course-error[hidden] {
  display: none;
}

.course-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-entry {
  min-width: 0;
}

.course-card {
  position: relative;
  padding: 18px clamp(16px, 2.5vw, 27px) 18px 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-raised);
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.course-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 8px 24px rgba(24, 35, 45, 0.06);
}

.course-position {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  margin-bottom: 5px;
  padding: 2px 8px;
  border: 1px solid #b7d2d5;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.course-card h3 {
  margin: 3px 0 9px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.course-card-meta,
.course-card-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px 13px;
}

.course-card-meta {
  color: var(--ink-faint);
  font-size: 11px;
}

.course-bvid {
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
}

.course-title-codes {
  color: var(--accent-strong);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
}

.course-bvid-missing {
  color: var(--warning);
}

.course-card-actions {
  margin-top: 11px;
}

.course-link {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  color: var(--link);
  font-size: 12px;
  text-decoration: none;
}

.course-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.course-archive-link {
  color: var(--ink-soft);
}

.course-parts-details {
  margin-top: 11px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.course-parts-details summary {
  width: fit-content;
  min-height: 40px;
  align-content: center;
  color: var(--accent-strong);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.course-parts-content {
  padding: 4px 0 0;
}

.course-parts-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-part {
  display: grid;
  grid-template-columns: 54px minmax(120px, 1fr) auto auto;
  align-items: center;
  gap: 6px 12px;
  min-width: 0;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 12px;
}

.course-part-position {
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.course-part-title {
  min-width: 0;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.course-part-records {
  color: var(--ink-faint);
  font-size: 11px;
  text-align: right;
}

.course-part-link {
  min-height: 30px;
  white-space: nowrap;
}

.course-part-manuscripts {
  display: grid;
  grid-column: 1 / -1;
  gap: 7px;
  padding: 2px 0 3px 66px;
}

.course-entry-manuscripts {
  display: grid;
  gap: 7px;
  margin-top: 9px;
}

.course-audio-context {
  min-width: 0;
  padding: 10px 12px;
  border-left: 2px solid var(--line);
  color: var(--ink-soft);
  overflow-wrap: anywhere;
  line-height: 1.6;
}

.course-audio-context p {
  margin: 0 0 7px;
}

.course-rerecording {
  display: grid;
  gap: 5px;
}

.course-record-group {
  display: flex;
  min-width: 0;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 5px 10px;
  color: var(--ink-faint);
  font-size: 11px;
}

.course-record-label {
  flex: 0 0 auto;
  color: var(--ink-soft);
  font-weight: 700;
}

.course-record-items {
  display: flex;
  min-width: 0;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.course-record-item {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
}

.course-record-item code {
  color: var(--ink-faint);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 10px;
}

.course-record-item a {
  color: var(--link);
  font-size: 11px;
  text-decoration: none;
}

.course-record-item a:hover {
  text-decoration: underline;
}

.course-parts-empty {
  margin: 11px 0 0;
  color: var(--ink-faint);
  font-size: 12px;
}

.course-no-results {
  padding: 28px 18px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  color: var(--ink-soft);
  text-align: center;
}

@media (max-width: 700px) {
  .course-page {
    padding-top: 18px;
  }

  .course-hero {
    padding: 21px 18px;
  }

  .course-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 20px;
  }

  .course-browser-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .course-card {
    padding: 15px 14px;
  }

  .course-part {
    grid-template-columns: 48px minmax(0, 1fr) auto;
  }

  .course-part-records {
    grid-column: 2;
    grid-row: 2;
    text-align: left;
  }

  .course-part-link {
    grid-column: 3;
    grid-row: 1 / span 2;
  }

  .course-part-manuscripts {
    grid-column: 1 / -1;
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}