:root {
  color-scheme: light;
  --paper: #fff;
  --ink: #121212;
  --muted: #707070;
  --faint: #f4f4f1;
  --line: #deded9;
  --strong-line: #1b1b1b;
  --accent: #006d67;
  --serif: "Bodoni 72", "Baskerville", "Songti SC", "STSong", serif;
  --sans: "Aptos", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  text-rendering: optimizeLegibility;
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 1rem;
  z-index: 50;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: #fff;
  transform: translateY(-120%);
}

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

.topbar,
main,
footer {
  width: min(1660px, calc(100% - 64px));
  margin-inline: auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  gap: 0.42rem;
  align-items: baseline;
  font-family: var(--serif);
  font-size: 1.02rem;
  text-decoration: none;
}

.wordmark i {
  color: var(--accent);
  font-style: normal;
}

.wordmark b {
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.topbar nav {
  display: flex;
  gap: clamp(1.1rem, 3vw, 2.6rem);
  font-size: 0.69rem;
}

.topbar nav a {
  text-decoration: none;
}

.topbar nav a:hover,
.topbar nav a:focus-visible {
  text-decoration: underline;
}

.detail-kicker,
.panel-index {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.catalog {
  padding: 2rem 0 7rem;
}

.catalog-tools {
  display: grid;
  grid-template-columns: minmax(150px, 0.32fr) 1fr auto;
  gap: 1rem;
  align-items: center;
  min-height: 68px;
  border-bottom: 1px solid var(--line);
}

.catalog-tools h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 400;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.2rem;
}

.filter-button {
  padding: 0.35rem 0;
  border: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.68rem;
}

.filter-button:hover,
.filter-button:focus-visible,
.filter-button.is-active {
  border-bottom-color: currentColor;
  color: var(--ink);
}

.catalog-count {
  color: var(--muted);
  font-size: 0.64rem;
  text-transform: uppercase;
}

.type-grid {
  display: grid;
  gap: 2.4rem;
}

.type-group {
  border-top: 1px solid var(--strong-line);
}

.type-group[hidden] {
  display: none;
}

.type-group-title {
  margin: 0;
  padding: 0.72rem 0 0.85rem;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 1.8vw, 1.9rem);
  font-weight: 400;
  letter-spacing: -0.03em;
}

.type-group-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-left: 1px solid var(--line);
}

.type-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 390px;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.type-card[hidden] {
  display: none;
}

.card-image {
  position: relative;
  display: grid;
  flex: 1 1 auto;
  min-height: 285px;
  place-items: center;
  overflow: hidden;
  background: #fff;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 260ms ease;
}

.type-card:hover .card-image img,
.type-card:focus-visible .card-image img {
  transform: scale(1.025);
}

.card-number {
  position: absolute;
  top: 0.85rem;
  left: 0.9rem;
  z-index: 2;
  color: #969696;
  font-family: var(--serif);
  font-size: 0.66rem;
}

.card-meta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.8rem;
  align-items: start;
  min-height: 104px;
  padding: 1rem 0.95rem 1.15rem;
  border-top: 1px solid #eeeeea;
}

.card-meta h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.22rem, 1.6vw, 1.75rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.02;
}

.card-meta p {
  margin: 0.42rem 0 0;
  color: var(--muted);
  font-size: 0.63rem;
  line-height: 1.45;
}

.status-dot {
  display: inline-flex;
  gap: 0.38rem;
  align-items: center;
  color: var(--accent);
  font-size: 0.58rem;
  white-space: nowrap;
}

.status-dot::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.status-dot.geometry {
  color: #555;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.8rem 0 2.8rem;
  border-top: 1px solid var(--strong-line);
  color: var(--muted);
  font-size: 0.66rem;
}

footer p {
  margin: 0;
}

.loading,
.error-message {
  grid-column: 1 / -1;
  padding: 3rem 1rem;
  color: var(--muted);
  font-size: 0.72rem;
}

.case-dialog {
  width: min(1540px, calc(100vw - 34px));
  max-width: none;
  height: min(940px, calc(100vh - 34px));
  max-height: none;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: #fff;
  box-shadow: 0 18px 80px rgb(0 0 0 / 18%);
}

.case-dialog::backdrop {
  background: rgb(238 238 233 / 86%);
  backdrop-filter: blur(6px);
}

.detail-shell {
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
}

.detail-header {
  z-index: 5;
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 2rem;
  min-height: 98px;
  padding: 1.25rem 1.5rem 1.15rem;
  border-bottom: 1px solid var(--strong-line);
  background: #fff;
}

.detail-kicker {
  margin-bottom: 0.36rem;
}

.detail-header h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 3vw, 3.5rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.95;
}

.close-button {
  padding: 0.35rem 0;
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 0.67rem;
}

.detail-content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: auto;
}

.comparison-panel,
.case-summary,
.data-panel {
  min-width: 0;
  padding: 1.35rem 1.5rem 1.7rem;
  border-bottom: 1px solid var(--line);
}

.comparison-panel {
  display: grid;
  grid-column: 1 / -1;
  grid-row: 1;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  background: var(--line);
}

.comparison-figure {
  display: grid;
  min-width: 0;
  margin: 0;
  grid-template-rows: auto auto auto;
  align-content: start;
  background: #fff;
}

.comparison-label {
  display: flex;
  min-height: 38px;
  padding: 0.72rem 0.9rem 0.4rem;
  align-items: start;
  justify-content: space-between;
  color: var(--ink);
  font-size: 0.64rem;
  line-height: 1;
}

.comparison-stage {
  position: relative;
  width: 100%;
  height: clamp(320px, 38vw, 520px);
}

.comparison-stage > img,
.comparison-stage > .comparison-interactive {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 0;
}

.comparison-stage > img {
  display: block;
  object-fit: contain;
}

.comparison-interactive {
  --chart-stage-height: clamp(320px, 38vw, 520px);

  min-height: 0;
  border: 0;
}

.comparison-interactive svg {
  height: 100%;
}

.comparison-stage > [hidden] {
  display: none;
}

.original-source,
.comparison-source-spacer {
  min-height: 2rem;
  padding: 0 0.9rem 0.72rem;
  color: var(--muted);
  font-size: 0.56rem;
  line-height: 1.25;
}

.original-source {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.original-source:hover,
.original-source:focus-visible {
  color: var(--accent);
}

.case-summary {
  grid-column: 1 / -1;
  grid-row: 2;
}

.data-panel {
  grid-column: 1 / -1;
  grid-row: 3;
}

.view-tabs {
  display: flex;
  gap: 0.8rem;
}

.view-tab {
  padding: 0.25rem 0;
  border: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.64rem;
}

.view-tab:hover,
.view-tab:focus-visible,
.view-tab.is-active {
  border-bottom-color: currentColor;
  color: var(--ink);
}

.case-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
  background: var(--faint);
}

.summary-status {
  margin: 0;
}

.summary-description {
  display: none;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.metric {
  min-height: 50px;
  padding: 0.5rem 0.65rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 0.59rem;
}

.metric strong {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1;
}

.metric-note,
.drag-hint,
.interactive-note {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.62rem;
  line-height: 1.55;
}

.metric-note,
.drag-hint,
.interactive-note {
  display: none;
}

.detail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 0;
  font-size: 0.64rem;
}

.data-panel {
  min-height: 575px;
}

.panel-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel-heading h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.65rem, 2.2vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.035em;
}

.panel-index {
  margin-bottom: 0.3rem;
}

.table-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.62rem;
}

.action-button {
  display: inline-flex;
  min-height: 34px;
  padding: 0 0.8rem;
  align-items: center;
  border: 1px solid var(--ink);
  background: #fff;
  color: var(--ink);
  text-decoration: none;
}

.action-button:hover,
.action-button:focus-visible {
  background: var(--ink);
  color: #fff;
}

.data-table-viewport {
  height: 410px;
  margin-top: 0.7rem;
  overflow: auto;
  border: 1px solid var(--line);
  background: #fff;
  cursor: grab;
  scrollbar-color: #a7a7a1 #f2f2ef;
  scrollbar-width: thin;
}

.data-table-viewport.is-dragging {
  cursor: grabbing;
  user-select: none;
}

.data-table-viewport:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.data-table-viewport table {
  width: max-content;
  min-width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.62rem;
  font-variant-numeric: tabular-nums;
}

.data-table-viewport th,
.data-table-viewport td {
  max-width: 320px;
  padding: 0.58rem 0.72rem;
  overflow: hidden;
  border-right: 1px solid #ecece8;
  border-bottom: 1px solid #ecece8;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.data-table-viewport th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--faint);
  color: #4a4a4a;
  font-weight: 600;
}

.data-table-viewport th:first-child,
.data-table-viewport td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: #fff;
}

.data-table-viewport th:first-child {
  z-index: 3;
  background: var(--faint);
}

.chart-instruction {
  color: var(--muted);
  font-size: 0.62rem;
}

.interactive-status {
  display: flex;
  gap: 0.45rem;
  align-items: flex-end;
  flex-direction: column;
}

.fidelity-badge {
  padding: 0.28rem 0.48rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.58rem;
  letter-spacing: 0.035em;
}

.fidelity-badge.is-evidence {
  border-color: #78aaa5;
  background: #edf7f5;
  color: var(--accent);
}

.interactive-note {
  margin: -0.2rem 0 0.7rem;
}

.interactive-chart {
  --chart-stage-height: clamp(360px, 58vw, 620px);

  position: relative;
  display: grid;
  min-height: var(--chart-stage-height);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  place-items: center;
}

.interactive-chart svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* The comparison pair owns the canvas size.  Do not let the standalone
   interactive-card minimum height push its SVG below the original image. */
.comparison-stage > .interactive-chart.comparison-interactive {
  min-height: 0;
  height: 100%;
  border: 0;
}

.interactive-chart svg > :not([data-tooltip]) {
  pointer-events: none;
}

.interactive-chart .axis-line,
.interactive-chart .grid-line {
  vector-effect: non-scaling-stroke;
}

.interactive-chart .axis-line {
  stroke: #444;
  stroke-width: 1;
}

.interactive-chart .grid-line {
  stroke: #e8e8e4;
  stroke-width: 1;
}

.interactive-chart .axis-label,
.interactive-chart .legend-label {
  fill: #676767;
  font-family: var(--sans);
  font-size: 10px;
}

.interactive-chart .paper-text {
  font-family: inherit;
  text-rendering: geometricPrecision;
  user-select: none;
}

.interactive-chart [data-tooltip] {
  cursor: crosshair;
  outline: none;
  pointer-events: all;
}

.interactive-chart [data-tooltip]:hover,
.interactive-chart [data-tooltip]:focus {
  filter: brightness(0.86);
  stroke: #111;
}

.interactive-chart path[data-tooltip]:hover,
.interactive-chart path[data-tooltip]:focus {
  /* Keep traced author paths at their evidence-backed width while highlighting. */
  filter: brightness(0.82);
}

.interactive-chart[data-style-mode="evidence-backed"] {
  background: #fff;
}

.interactive-readout {
  display: block;
  min-height: 2.2em;
  margin: 0.45rem 0.9rem 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.58rem;
  line-height: 1.45;
  white-space: pre-line;
}

.chart-tooltip {
  position: absolute;
  z-index: 4;
  display: none;
  max-width: 310px;
  padding: 0.55rem 0.65rem;
  border: 1px solid #222;
  background: rgb(255 255 255 / 96%);
  box-shadow: 0 6px 24px rgb(0 0 0 / 10%);
  color: #222;
  font-size: 0.62rem;
  line-height: 1.5;
  pointer-events: none;
  white-space: pre-line;
}

.chart-tooltip.is-visible {
  display: block;
}

@media (max-width: 1180px) {
  .type-group-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 880px) {
  .catalog-tools {
    grid-template-columns: 1fr auto;
    padding: 0.8rem 0;
  }

  .filter-row {
    grid-column: 1 / -1;
    grid-row: 2;
  }

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

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

  .comparison-panel,
  .case-summary,
  .data-panel {
    grid-column: 1;
    grid-row: auto;
  }

  .comparison-panel {
    order: 1;
  }

  .case-summary {
    order: 2;
  }

  .data-panel {
    order: 3;
  }

  .case-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .topbar,
  main,
  footer {
    width: calc(100% - 28px);
  }

  .topbar nav {
    gap: 0.85rem;
  }

  .topbar nav a:last-child {
    display: none;
  }

  .type-group-grid {
    grid-template-columns: 1fr;
  }

  .type-card {
    min-height: 370px;
  }

  .case-dialog {
    width: 100vw;
    height: 100vh;
    max-height: none;
  }

  .detail-header,
  .case-summary,
  .data-panel {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .detail-header {
    min-height: 82px;
  }

  .comparison-label {
    min-height: 34px;
    padding: 0.6rem 0.7rem 0.35rem;
  }

  .comparison-stage {
    height: clamp(180px, 48vw, 280px);
  }

  .comparison-stage > img,
  .comparison-stage > .comparison-interactive {
    padding: 0;
  }

  .comparison-interactive {
    --chart-stage-height: clamp(180px, 48vw, 280px);
  }

  .interactive-readout {
    margin: 0.4rem 0.45rem 0;
  }

  .original-source,
  .comparison-source-spacer {
    min-height: 1.75rem;
    padding: 0 0.45rem 0.55rem;
  }

  .view-tabs {
    gap: 0.75rem;
  }

  .panel-heading {
    align-items: start;
  }

  .table-actions {
    align-items: end;
    flex-direction: column;
  }

  footer {
    display: block;
  }

  footer p {
    margin-top: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .card-image img {
    transition: none;
  }
}