/* FD-Bench project page — UltraVoice-inspired academic landing style */

:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --accent: #06b6d4;
  --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 45%, #06b6d4 100%);
  --shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: #f8fafc;
  line-height: 1.65;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-size: 0.88em;
  background: #f1f5f9;
  padding: 0.12em 0.4em;
  border-radius: 6px;
}

/* Hero */
.hero {
  background: var(--gradient);
  color: #fff;
  padding: 4.5rem 1.5rem 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.12), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.08), transparent 40%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
}

.logo-mark {
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 700;
  margin: 0 0 0.4rem;
  letter-spacing: -0.03em;
}

.subtitle {
  font-size: 1.02rem;
  opacity: 0.95;
  margin: 0 0 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}

.tagline {
  font-size: 1.05rem;
  opacity: 0.88;
  max-width: 720px;
  margin: 0 auto 1.5rem;
}

.report-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.85;
  margin: 0 0 1rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.authors {
  max-width: 640px;
  margin: 0 auto 1.75rem;
  text-align: center;
}

.author-block {
  margin-bottom: 0.55rem;
  font-size: 1rem;
}

.author-block a {
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.author-block a:hover {
  text-decoration: underline;
}

.affil {
  display: block;
  font-size: 0.82rem;
  opacity: 0.78;
  font-weight: 400;
  margin-top: 0.1rem;
}

.author-note {
  font-size: 0.78rem;
  opacity: 0.7;
  margin: 0.5rem 0 0;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  text-decoration: none;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(6px);
}

.btn-accent {
  background: var(--bg);
  color: #fff;
}

/* Main */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

.section {
  padding: 3.5rem 0 1rem;
}

.section h2 {
  font-size: 1.85rem;
  font-weight: 700;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.section-lead {
  color: var(--text-muted);
  margin: 0 0 1.75rem;
  max-width: 780px;
}

/* Contributions */
.contrib-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.contrib-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.contrib-num {
  display: inline-flex;
  width: 1.75rem;
  height: 1.75rem;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.contrib-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Pilot findings */
.findings-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.finding-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.finding-card h3 {
  margin: 0 0 0.45rem;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.finding-card.good h3 {
  color: #059669;
}

.finding-card.bad h3 {
  color: #dc2626;
}

.finding-card.tone-iris {
  background: #f5f3ff;
  border-color: #ddd6fe;
}

.finding-card.tone-amber {
  background: #fffbeb;
  border-color: #fde68a;
}

.finding-card.tone-rose {
  background: #fff1f2;
  border-color: #fecdd3;
}

.finding-card.tone-teal {
  background: #f0fdfa;
  border-color: #99f6e4;
}

.finding-card.tone-iris h3,
.finding-card.tone-iris .finding-stat {
  color: #6d28d9;
}

.finding-card.tone-amber h3,
.finding-card.tone-amber .finding-stat {
  color: #b45309;
}

.finding-card.tone-rose h3,
.finding-card.tone-rose .finding-stat {
  color: #be123c;
}

.finding-card.tone-teal h3,
.finding-card.tone-teal .finding-stat {
  color: #0f766e;
}

.finding-stat {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text);
}

.finding-card p:last-child {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Taxonomy matrix (5 × 15 overview) */
.taxonomy-scenario-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.taxonomy-scenario-head {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.taxonomy-scenario-num,
.scenario-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: var(--gradient);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.taxonomy-scenario-head h3 {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
}

.taxonomy-scenario-head h3 .zh,
.zh-inline {
  font-weight: 500;
  opacity: 0.75;
  font-size: 0.92em;
}

.taxonomy-scenario-head p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.taxonomy-cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.55rem;
}

.taxonomy-cat-chip {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.65rem 0.75rem;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, background 0.15s;
}

.taxonomy-cat-chip:hover {
  background: #eef2ff;
  border-color: #c7d2fe;
  text-decoration: none;
}

.taxonomy-cat-chip .cat-num {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary);
}

.taxonomy-cat-chip .cat-title {
  font-size: 0.82rem;
  font-weight: 600;
}

.taxonomy-cat-chip code {
  font-size: 0.72rem;
}

.taxonomy-cat-chip .cat-trials {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.taxonomy-table-wrap {
  margin-top: 1.5rem;
}

.taxonomy-table {
  font-size: 0.82rem;
}

.num-cell {
  text-align: center;
  font-weight: 700;
  color: var(--primary-dark);
  white-space: nowrap;
}

.cat-cell strong {
  font-size: 0.88rem;
}

.cell-sub,
.cell-example {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.cell-example {
  display: block;
  margin-top: 0.25rem;
}

.trials-cell {
  text-align: center;
  white-space: nowrap;
}

.path-cell code {
  font-size: 0.72rem;
  word-break: break-all;
}

.cond-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  white-space: nowrap;
}

.cond-pre_session { background: #ede9fe; color: #5b21b6; }
.cond-in_session { background: #dbeafe; color: #1d4ed8; }
.cond-no_explicit { background: #f1f5f9; color: #475569; }

.examples-pair {
  margin: 0;
}

.example-line {
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.lang-tag {
  display: inline-block;
  min-width: 1.6rem;
  text-align: center;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  margin-right: 0.4rem;
  border-radius: 4px;
  background: #fef3c7;
  color: #92400e;
  vertical-align: top;
}

.lang-tag.en {
  background: #dbeafe;
  color: #1e40af;
}

.examples-cell {
  min-width: 220px;
}

.category-examples {
  margin-top: 0.5rem;
  font-size: 0.84rem;
}

.category-examples .examples-pair {
  margin-top: 0.35rem;
}

.taxonomy-cat-chip .cond-badge {
  align-self: flex-start;
  margin-top: 0.15rem;
}

.scenario-num-icon {
  font-size: 0.9rem;
  font-weight: 700;
  background: var(--gradient);
  color: #fff;
  border-radius: 10px;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.category-block {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.95rem 1rem;
  margin-top: 0.75rem;
}

.category-block-head {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.cat-num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  border-radius: 8px;
  background: #eef2ff;
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.82rem;
  flex-shrink: 0;
}

.category-block h4 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.cat-meta {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.category-desc {
  margin: 0.35rem 0 0;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.detail-block {
  margin-top: 0.65rem;
  padding: 0.65rem 0.75rem;
  background: #f8fafc;
  border-radius: 8px;
  border-left: 3px solid #cbd5e1;
}

.detail-block strong {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.detail-block p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
}

.detail-expected {
  border-left-color: var(--primary);
  background: #eef2ff;
}

.detail-sub {
  border-left-color: #94a3b8;
}

.detail-audio {
  border-left-color: var(--accent);
}

.detail-audio .sample-audio-grid {
  margin-top: 0.35rem;
}

.detail-block .examples-pair {
  margin: 0;
}

.detail-block .example-line {
  margin: 0.25rem 0 0;
  font-size: 0.84rem;
}

.demo-id {
  margin: 0.5rem 0 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.row-no-audio {
  opacity: 0.72;
}

.row-no-audio:hover {
  opacity: 1;
}

/* Paper figures */
.paper-figure {
  margin: 0;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.paper-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.paper-figure figcaption {
  margin-top: 0.85rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.cmp-legend {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.92rem;
}

.cmp-yes { color: #16a34a; font-weight: 700; }
.cmp-partial { color: #ea580c; font-weight: 700; }
.cmp-no { color: #dc2626; font-weight: 700; }

/* Overview */
.overview-layout {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.overview-figure-wide {
  max-width: 100%;
}

.stats-grid-inline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.35rem 1rem;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.stat-num {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 0.25rem;
}

/* Scenario cards (UltraVoice dimension style) */
.dimension-card {
  background: var(--surface);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
}

.dimension-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}

.dimension-header:hover {
  background: #f8fafc;
}

.dimension-header.active .chevron {
  transform: rotate(180deg);
}

.dimension-title {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.dimension-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 10px;
  background: var(--gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dimension-title h3 {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
}

.dimension-title p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.dimension-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: #eef2ff;
  color: var(--primary-dark);
}

.badge.subtle {
  background: #f1f5f9;
  color: var(--text-muted);
}

.chevron {
  color: var(--text-muted);
  transition: transform 0.2s;
  margin-left: 0.25rem;
}

.dimension-content {
  display: none;
  padding: 0 1.35rem 1.25rem;
  border-top: 1px solid var(--border);
}

.dimension-content.active {
  display: block;
}

.category-tags {
  margin: 1rem 0;
  font-size: 0.82rem;
}

.category-tags code {
  margin-right: 0.35rem;
}

.sample-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-top: 0.85rem;
}

.sample-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.sample-index {
  font-weight: 600;
  font-size: 0.9rem;
}

.sample-id {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: ui-monospace, monospace;
}

.sample-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0 0 0.85rem;
}

.sample-audio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.muted {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Audio demo table (UltraVoice comparison style) */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  background: var(--surface);
}

.demo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.demo-table thead {
  background: linear-gradient(135deg, #6366f1 0%, #7c3aed 100%);
  color: #fff;
}

.demo-table th {
  padding: 0.95rem 1rem;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

.demo-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.demo-table tbody tr:last-child td {
  border-bottom: none;
}

.demo-table tbody tr:hover {
  background: #fafbff;
}

.dim-cell {
  font-weight: 600;
  color: var(--primary-dark);
  background: #f8fafc;
  vertical-align: middle;
  min-width: 140px;
}

.sub-cell {
  min-width: 160px;
}

.sub-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
}

.audio-col {
  min-width: 220px;
}

.loading-cell {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem !important;
}

/* Audio players */
.audio-cell {
  margin-bottom: 0.65rem;
}

.audio-cell:last-child {
  margin-bottom: 0;
}

.audio-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.query-audio-wrapper {
  position: relative;
}

.query-audio-wrapper audio {
  width: 100%;
  max-width: 260px;
  height: 36px;
  border-radius: 8px;
}

.query-audio-wrapper[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  width: max-content;
  max-width: 280px;
  padding: 0.55rem 0.75rem;
  background: var(--bg);
  color: #e2e8f0;
  font-size: 0.75rem;
  line-height: 1.45;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s, visibility 0.15s;
  z-index: 20;
}

.query-audio-wrapper[data-tooltip].tooltip-bottom::after {
  bottom: auto;
  top: calc(100% + 8px);
}

.query-audio-wrapper[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Metrics */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.metrics-grid-two {
  grid-template-columns: 1fr 1fr;
}

.metric-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.35rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.metric-card i {
  font-size: 1.35rem;
  color: var(--primary);
  margin-bottom: 0.65rem;
}

.metric-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
}

.metric-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.hero .authors {
  max-width: 820px;
}

#figures {
  padding-top: 2rem;
}

.fig-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.fig-row figure {
  margin: 0;
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 0.85rem 1rem;
  box-shadow: var(--shadow);
}

.fig-frame {
  height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}

.fig-row img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.fig-row figcaption {
  flex: 1 0 auto;
  margin: 0.75rem 0 0;
  font-size: 0.84rem;
  color: #64748b;
  line-height: 1.5;
  text-align: left;
}

.fig-row figcaption strong {
  color: #334155;
  font-weight: 600;
}

@media (max-width: 800px) {
  .subtitle {
    white-space: normal;
  }

  .fig-row {
    grid-template-columns: 1fr;
  }

  .fig-frame {
    height: 360px;
  }
}

.ex-behavior {
  margin: 1.6rem 0 0.7rem;
  font-size: 1.15rem;
}

.ex-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  margin-bottom: 0.55rem;
  box-shadow: var(--shadow);
}

.ex-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  border: 0;
  background: transparent;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.ex-head span:first-child {
  font-weight: 600;
}

.ex-head .fa-chevron-down {
  margin-left: auto;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

.ex-card.open .fa-chevron-down {
  transform: rotate(180deg);
}

.ex-body {
  display: none;
  padding: 0 1rem 0.4rem;
}

.ex-card.open .ex-body {
  display: block;
}

.ex-body {
  padding: 0 0.85rem 0.35rem;
}

.ex-trial {
  margin: 0 0 0.9rem;
  padding: 0.85rem 0.9rem 0.95rem;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  background: #f8fafc;
}

.ex-trial-head {
  margin: 0 0 0.7rem;
  font-size: 0.92rem;
}

.ex-block {
  border-radius: 10px;
  padding: 0.7rem 0.8rem 0.15rem;
  margin-bottom: 0.7rem;
}

.ex-block p {
  margin: 0 0 0.65rem;
  color: #1e293b;
  font-size: 0.9rem;
}

.ex-block.profile {
  background: #f5f3ff;
  border: 1px solid #ddd6fe;
}

.ex-block.user {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
}

.ex-kicker {
  display: block;
  margin: 0 0 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ex-block.profile .ex-kicker {
  color: #6d28d9;
}

.ex-block.user .ex-kicker {
  color: #1d4ed8;
}

.systems-kicker {
  color: #475569;
  margin: 0.15rem 0 0.45rem;
}

.ex-transcript {
  margin: 0.35rem 0 0.65rem;
  color: #334155;
  font-size: 0.86rem;
}

.ex-user-row {
  display: block;
  margin-bottom: 0.15rem;
}

.ex-audio {
  display: block;
  margin: 0 0 0.65rem;
}

.ex-audio span,
.ex-meta,
.ex-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.ex-audio span {
  display: block;
  margin-bottom: 0.3rem;
}

.ex-audio audio {
  display: block;
  width: 100%;
  height: 40px;
}

.ex-systems {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}

.ex-model {
  background: #fff;
  border: 1px solid var(--border);
  border-top: 3px solid #cbd5e1;
  border-radius: 10px;
  padding: 0.7rem 0.75rem 0.2rem;
}

.ex-model.good {
  border-top-color: #059669;
}

.ex-model.bad {
  border-top-color: #d97706;
}

.ex-model-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
}

.ex-model-head strong {
  font-size: 0.88rem;
}

.ex-model.good .ex-tag {
  color: #047857;
  font-weight: 600;
}

.ex-model.bad .ex-tag {
  color: #b45309;
  font-weight: 600;
}

@media (max-width: 900px) {
  .ex-systems {
    grid-template-columns: 1fr;
  }
}

.affil-list {
  margin: 0.35rem 0 0;
  font-size: 0.84rem;
  opacity: 0.82;
  line-height: 1.55;
}

.cmp-table td.ours,
.cmp-table tr.ours td {
  background: #eef2ff;
  font-weight: 700;
}

.cmp-table {
  font-size: 0.86rem;
}

.cmp-table td,
.bcr-table td {
  text-align: center;
}

.cmp-table td:first-child,
.bcr-table td:first-child,
.bcr-table td:nth-child(2) {
  text-align: left;
  white-space: nowrap;
}

.bcr-table {
  font-size: 0.75rem;
  min-width: 980px;
}

.bcr-table th,
.bcr-table td {
  padding: 0.45rem 0.35rem;
}

.bcr-table thead th {
  text-align: center;
  font-size: 0.72rem;
  line-height: 1.25;
}

.bcr-table .group td {
  background: #f8fafc;
  font-style: italic;
  color: var(--text-muted);
  font-weight: 600;
  text-align: left;
}

.bcr-table .best {
  font-weight: 700;
  color: var(--primary-dark);
}

.table-title {
  margin: 1.75rem 0 0.55rem;
  font-size: 1.15rem;
}

.section h2 + .table-title {
  margin-top: 0.15rem;
}

.behavior-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.behavior-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.05rem;
  box-shadow: var(--shadow);
}

.behavior-card h3 {
  margin: 0 0 0.35rem;
  font-size: 0.98rem;
}

.behavior-card p {
  margin: 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

.behavior-card .trials {
  display: inline-block;
  margin-top: 0.55rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-dark);
}

@media (max-width: 900px) {
  .behavior-grid {
    grid-template-columns: 1fr;
  }
}

/* Footer */
.footer {
  text-align: center;
  padding: 2.5rem 1rem;
  background: var(--bg);
  color: #94a3b8;
  font-size: 0.88rem;
}

.footer a {
  color: #cbd5e1;
}

.footer-note {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  opacity: 0.75;
}

/* Responsive */
@media (max-width: 900px) {
  .stats-grid-inline {
    grid-template-columns: 1fr 1fr;
  }

  .sample-audio-grid {
    grid-template-columns: 1fr;
  }

  .metrics-grid,
  .contrib-grid {
    grid-template-columns: 1fr;
  }

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

  .dimension-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .dimension-meta {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .demo-table th,
  .demo-table td {
    padding: 0.75rem 0.6rem;
  }

  .query-audio-wrapper audio {
    max-width: 100%;
  }

  .taxonomy-cat-grid {
    grid-template-columns: 1fr;
  }

  .taxonomy-table-wrap {
    font-size: 0.78rem;
  }
}