/* ==========================================================================
   Results & visualization components
   Extends index.css (same template as the LLEMA project page).
   ========================================================================== */

:root {
  /* Chart roles. "Ours" is categorical slot 1 on every chart of the page. */
  --ours: #2a78d6;
  --ours-dark: #1c5cab;
  --ours-wash: rgba(42, 120, 214, 0.10);
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --base-mark: #8190a5;          /* de-emphasized baseline dots (3.25:1 on white) */
  --base-bar: #b4bdca;           /* de-emphasized baseline bars (labelled at the tip) */
  --viz-grid: #edf0f4;
  --viz-axis: #c5ccd6;
  --viz-ink-1: #1e293b;
  --viz-ink-2: #475569;
  --viz-ink-3: #64748b;
  --viz-surface: #ffffff;
}

/* ---------- Section helpers ---------- */
.section-lead {
  max-width: 820px;
  margin: -0.5rem auto 2rem auto;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  text-align: center;
}

.subsection-title {
  font-family: 'Inter', sans-serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 3rem 0 0.4rem 0;
  text-align: left;
}

.subsection-lead {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 1.25rem;
  text-align: left;
  max-width: 900px;
}

.venue-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.venue-badge img {
  height: 44px;
  width: auto;
}

.venue-badge strong {
  font-size: 1.2em;
  color: var(--text-primary);
}

/* ---------- Stat tiles (results at a glance) ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1rem;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}

.stat-tile {
  background: var(--background-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.1rem 1.25rem 1rem 1.25rem;
  box-shadow: var(--shadow-sm);
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--viz-ink-2);
  line-height: 1.35;
}

.stat-value {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--viz-ink-1);
  line-height: 1.15;
  margin: 0.35rem 0 0.3rem 0;
  letter-spacing: -0.01em;
}

.stat-value .stat-accent {
  color: var(--ours);
}

.stat-context {
  font-size: 0.82rem;
  color: var(--viz-ink-3);
  line-height: 1.45;
}

/* ---------- Controls (one row, above the charts they scope) ---------- */
.viz-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin: 0 0 1rem 0;
  text-align: left;
}

.viz-control-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--viz-ink-3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-right: 0.4rem;
}

.seg {
  display: inline-flex;
  flex-wrap: wrap;
  background: var(--background-accent);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
}

.seg button {
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--viz-ink-2);
  background: transparent;
  border: 0;
  border-radius: 7px;
  padding: 0.38rem 0.8rem;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
  line-height: 1.3;
}

.seg button:hover {
  color: var(--viz-ink-1);
  background: rgba(255, 255, 255, 0.6);
}

.seg button[aria-pressed="true"] {
  background: var(--background-primary);
  color: var(--viz-ink-1);
  box-shadow: 0 1px 2px rgb(0 0 0 / 0.08), 0 0 0 1px rgb(0 0 0 / 0.04);
}

.seg button:focus-visible {
  outline: 2px solid var(--ours);
  outline-offset: 1px;
}

/* ---------- Chart cards ---------- */
.viz-card {
  background: var(--viz-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem 1.5rem 1.1rem 1.5rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
  text-align: left;
}

.viz-card-title {
  font-family: 'Inter', sans-serif;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--viz-ink-1);
  margin: 0 0 0.25rem 0;
}

.viz-card-sub {
  font-size: 0.92rem;
  color: var(--viz-ink-3);
  line-height: 1.55;
  margin: 0 0 1rem 0;
}

.viz-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.viz-grid-2 > .viz-card {
  margin-bottom: 0;
}

@media screen and (max-width: 900px) {
  .viz-grid-2 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.viz-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.75rem;
}

@media screen and (max-width: 1000px) {
  .viz-grid-3 {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }
}

.viz {
  position: relative;
  width: 100%;
  min-height: 60px;
}

.viz svg {
  display: block;
  overflow: visible;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

.viz .tick text,
.viz .axis-text {
  font-size: 11.5px;
  fill: var(--viz-ink-3);
  font-variant-numeric: tabular-nums;
}

.viz .axis-title {
  font-size: 12px;
  font-weight: 500;
  fill: var(--viz-ink-3);
}

.viz .panel-title {
  font-size: 13px;
  font-weight: 700;
  fill: var(--viz-ink-1);
}

.viz .panel-sub {
  font-size: 11.5px;
  fill: var(--viz-ink-3);
}

.viz .row-label {
  font-size: 12.5px;
  fill: var(--viz-ink-2);
}

.viz .row-label.is-hl {
  font-weight: 700;
  fill: var(--viz-ink-1);
}

.viz .group-label {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  fill: var(--viz-ink-3);
}

.viz .value-label {
  font-size: 11.5px;
  fill: var(--viz-ink-2);
  font-variant-numeric: tabular-nums;
}

.viz .value-label.is-hl {
  font-weight: 700;
  fill: var(--viz-ink-1);
}

.viz .annot {
  font-size: 11.5px;
  font-weight: 600;
  fill: var(--viz-ink-1);
}

.viz .annot-muted {
  font-size: 11px;
  fill: var(--viz-ink-3);
}

.viz .gridline {
  stroke: var(--viz-grid);
  stroke-width: 1;
  shape-rendering: crispEdges;
}

.viz .axisline {
  stroke: var(--viz-axis);
  stroke-width: 1;
  shape-rendering: crispEdges;
}

.viz .row-band {
  fill: transparent;
}

.viz .row-band.is-hover {
  fill: rgba(15, 23, 42, 0.035);
}

.viz .hit {
  fill: transparent;
  cursor: default;
}

.viz .hit:focus {
  outline: none;
}

.viz .hit:focus-visible {
  stroke: var(--ours);
  stroke-width: 1.5;
}

.viz .crosshair {
  stroke: var(--viz-ink-3);
  stroke-width: 1;
  shape-rendering: crispEdges;
  pointer-events: none;
}

/* Legend (always present for >= 2 series) */
.viz-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  margin: 0 0 0.75rem 0;
  font-size: 0.85rem;
  color: var(--viz-ink-2);
}

.viz-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.viz-legend .key-line {
  width: 16px;
  height: 0;
  border-top: 2px solid currentColor;
  border-radius: 2px;
}

.viz-legend .key-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.viz-legend .key-rect {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

.viz-foot {
  font-size: 0.8rem;
  color: var(--viz-ink-3);
  line-height: 1.5;
  margin-top: 0.6rem;
}

/* ---------- Tooltip ---------- */
.viz-tip {
  position: fixed;
  z-index: 2000;
  pointer-events: none;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 10px;
  box-shadow: 0 10px 24px -6px rgb(15 23 42 / 0.18), 0 2px 6px rgb(15 23 42 / 0.06);
  padding: 0.55rem 0.7rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  color: var(--viz-ink-2);
  min-width: 150px;
  max-width: 300px;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.viz-tip.is-on {
  opacity: 1;
  transform: translateY(0);
}

.viz-tip-title {
  font-weight: 700;
  color: var(--viz-ink-1);
  margin-bottom: 0.3rem;
  font-size: 0.82rem;
}

.viz-tip-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  line-height: 1.55;
  white-space: nowrap;
}

.viz-tip-key {
  flex: 0 0 auto;
  width: 12px;
  height: 0;
  border-top: 2px solid currentColor;
  border-radius: 2px;
}

.viz-tip-val sup,
table.data-table sup {
  font-size: 0.72em;
  line-height: 0;
  vertical-align: 0.55em;
}

.viz-tip-val {
  font-weight: 700;
  color: var(--viz-ink-1);
  font-variant-numeric: tabular-nums;
}

.viz-tip-lab {
  color: var(--viz-ink-3);
  overflow: hidden;
  text-overflow: ellipsis;
}

.viz-tip-row.is-current .viz-tip-lab {
  color: var(--viz-ink-1);
  font-weight: 600;
}

.viz-tip-note {
  margin-top: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--border-color);
  color: var(--viz-ink-3);
  font-size: 0.76rem;
  white-space: normal;
}

/* ---------- Data tables (table view twin of every chart) ---------- */
.table-view {
  margin-top: 0.75rem;
}

.table-view > summary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--viz-ink-2);
  list-style: none;
  padding: 0.3rem 0.1rem;
  user-select: none;
}

.table-view > summary::-webkit-details-marker {
  display: none;
}

.table-view > summary::before {
  content: '';
  width: 0;
  height: 0;
  border-left: 5px solid currentColor;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform 0.15s ease;
}

.table-view[open] > summary::before {
  transform: rotate(90deg);
}

.table-view > summary:hover {
  color: var(--viz-ink-1);
}

.table-scroll {
  overflow-x: auto;
  margin-top: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  color: var(--viz-ink-2);
  background: #fff;
}

table.data-table caption {
  caption-side: bottom;
  text-align: left;
  font-size: 0.78rem;
  color: var(--viz-ink-3);
  padding: 0.5rem 0.75rem;
}

table.data-table th,
table.data-table td {
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid var(--viz-grid);
  white-space: nowrap;
}

table.data-table thead th {
  font-weight: 700;
  color: var(--viz-ink-1);
  background: var(--background-secondary);
  font-size: 0.8rem;
  vertical-align: bottom;
}

table.data-table thead tr.col-groups th {
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

table.data-table td.num,
table.data-table th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

table.data-table tr.group-row td {
  background: #fbfcfd;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--viz-ink-3);
}

table.data-table tr.is-ours th,
table.data-table tr.is-ours td {
  background: var(--ours-wash);
  color: var(--viz-ink-1);
}

table.data-table tr.is-ours th:first-child,
table.data-table tr.is-ours td:first-child {
  font-weight: 700;
}

table.data-table td.is-best {
  font-weight: 700;
  color: var(--viz-ink-1);
}

table.data-table td.is-second {
  text-decoration: underline;
  text-underline-offset: 3px;
}

table.data-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- Method steps ---------- */
.method-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  text-align: left;
}

.method-step {
  background: var(--background-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.2rem 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.method-step:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.method-step .step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: #232F3E;
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.7rem;
}

.method-step h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
  color: #232F3E;
  margin: 0 0 0.45rem 0;
  line-height: 1.35;
}

.method-step p {
  font-size: 0.93rem;
  line-height: 1.6;
  color: var(--text-primary);
  margin: 0;
}

/* ---------- Figures with zoom ---------- */
.paper-figure {
  margin: 0;
  text-align: center;
}

.paper-figure .zoomable {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: #fff;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  cursor: zoom-in;
  position: relative;
}

.paper-figure .zoomable img {
  display: block;
  width: 100%;
  height: auto;
}

.paper-figure .zoomable::after {
  content: '\2922';
  position: absolute;
  right: 10px;
  top: 10px;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.62);
  color: #fff;
  font-size: 15px;
  line-height: 30px;
  text-align: center;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.paper-figure .zoomable:hover::after,
.paper-figure .zoomable:focus-visible::after {
  opacity: 1;
}

.paper-figure .zoomable:focus-visible {
  outline: 2px solid var(--ours);
  outline-offset: 3px;
}

.paper-figure figcaption {
  margin-top: 1rem;
  font-style: italic;
  color: var(--text-secondary);
  font-size: 0.92rem;
  text-align: justify;
  line-height: 1.55;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(15, 23, 42, 0.86);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  cursor: zoom-out;
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.5);
}

.lightbox-close {
  position: absolute;
  top: 14px;
  right: 18px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
}

/* ---------- Tabbed figure gallery ---------- */
.gallery-panel {
  display: none;
}

.gallery-panel.is-active {
  display: block;
}

.gallery-panel .paper-figure figcaption {
  text-align: left;
}

.eq-table {
  font-size: 0.9rem;
}

.eq-table td.eq {
  font-family: 'Cambria Math', 'STIX Two Math', 'Latin Modern Math', Georgia, serif;
  font-size: 0.98rem;
  color: var(--viz-ink-1);
}

@media screen and (max-width: 768px) {
  .viz-card {
    padding: 1.1rem 0.9rem 0.9rem 0.9rem;
  }

  .stat-value {
    font-size: 1.8rem;
  }

  .subsection-title {
    font-size: 1.2rem;
  }

  .seg button {
    font-size: 0.82rem;
    padding: 0.34rem 0.6rem;
  }
}

@media print {
  .table-view:not([open]) > .table-scroll {
    display: block;
  }
}