/* DIVE Project Page */

/* ===== Variables ===== */
:root {
  --primary: #4361ee;
  --primary-dark: #3a0ca3;
  --accent: #f72585;
  --accent2: #4cc9f0;
  --green: #06d6a0;
  --bg: #ffffff;
  --bg-alt: #f8f9fc;
  --text: #1a1a2e;
  --text-secondary: #555;
  --border: #e2e8f0;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.10);
  --radius: 12px;
}

/* ===== Global ===== */
* { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px !important;
}

/* ===== Hero ===== */
.hero.is-light {
  background: linear-gradient(135deg, #f0f4ff 0%, #faf5ff 50%, #fff0f6 100%);
  padding-bottom: 0;
}

.hero-body {
  padding: 3rem 1.5rem 2rem;
}

.pub-logo {
  width: 100px;
  height: auto;
  vertical-align: middle;
  margin-right: 0.5rem;
  margin-bottom: 0.1rem;
}

.publication-title {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 2.5rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.publication-authors {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* ===== Link Buttons ===== */
.link-block .button {
  border-radius: 24px;
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0.3rem;
  padding: 0.6em 1.4em;
  transition: all 0.2s ease;
  border: none;
}

.link-block .button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

/* ===== Abstract + Teaser two-column ===== */
.abstract-teaser-section {
  padding: 3rem 0;
}

.abstract-teaser-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 960px) {
  .abstract-teaser-grid {
    grid-template-columns: 1fr;
  }
}

.abstract-side {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ===== Section Title ===== */
.section-title {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.85rem;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

/* ===== Abstract Text ===== */
.abstract-text {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--text);
  text-align: left;
}

.abstract-text strong {
  color: var(--primary);
  font-weight: 700;
}

.abstract-text em {
  color: var(--accent);
  font-style: italic;
}

/* ===== Highlight Cards ===== */
.highlight-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

@media (max-width: 600px) {
  .highlight-cards { grid-template-columns: 1fr; }
}

.highlight-card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.2rem 1rem;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  border-top: 3px solid var(--primary);
}

.highlight-card:nth-child(2) { border-top-color: var(--accent); }
.highlight-card:nth-child(3) { border-top-color: var(--green); }

.highlight-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.highlight-card .big-number {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 0.25rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight-card:nth-child(2) .big-number {
  background: linear-gradient(135deg, var(--accent), #b5179e);
  -webkit-background-clip: text;
  background-clip: text;
}

.highlight-card:nth-child(3) .big-number {
  background: linear-gradient(135deg, var(--green), #118ab2);
  -webkit-background-clip: text;
  background-clip: text;
}

.highlight-card .card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ===== Teaser (right side) ===== */
.teaser-side {
  position: sticky;
  top: 2rem;
}

.teaser-side img {
  width: 100%;
  max-width: 480px;
  height: auto;
  border-radius: 0;
  box-shadow: var(--shadow);
  margin: 0 auto;
  display: block;
}

/* ===== Figure ===== */
.figure-container {
  text-align: center;
  margin: 1.5rem 0;
}

.figure-container img {
  max-width: 100%;
  height: auto;
  border-radius: 0;
}

.figure-container.figure-medium img {
  max-width: 95%;
  margin: 0 auto;
  display: block;
}

.figure-caption {
  font-size: 1.05rem;
  color: var(--text-secondary);
  text-align: left;
  margin-top: 0.75rem;
  line-height: 1.6;
  padding: 0 0.5rem;
}

/* ===== Section alternating bg ===== */
.section { padding: 3rem 1.5rem; }
.section.has-bg { background: var(--bg-alt); }

/* ===== Method Tabs ===== */
.method-tabs .tabs ul {
  border-bottom-color: var(--border);
}

.method-tabs .tabs li.is-active a {
  border-bottom-color: var(--primary);
  color: var(--primary);
  font-weight: 700;
}

.method-tabs .tabs a {
  font-size: 1.05rem;
  padding: 0.75em 1.2em;
  color: var(--text-secondary);
  border-bottom-width: 3px;
  transition: color 0.15s;
}

.tab-content {
  display: none;
  padding: 1.5rem 0;
  animation: fadeIn 0.3s ease;
}

.tab-content.is-active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Phase cards inside tabs */
.tab-content .notification {
  border-radius: var(--radius);
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.tab-content .content {
  font-size: 1rem;
}

.tab-content .notification p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.tab-content .notification .title.is-6 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

/* ===== Results Table (Booktabs-inspired) ===== */
.results-table-wrapper {
  overflow-x: auto;
  margin: 1rem 0;
  background: white;
  border-radius: 4px;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 880px;
  font-variant-numeric: tabular-nums;
}

/* \toprule — thick top rule */
.results-table thead {
  border-top: 2px solid #222;
}

/* Header cells — clean white background */
.results-table thead th {
  background: white;
  color: #1a1a2e;
  padding: 0.45rem 0.4rem;
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
  font-size: 0.88rem;
  vertical-align: bottom;
  line-height: 1.3;
  border: none;
}

.results-table .header-top th:first-child,
.results-table .header-top th:nth-child(2) {
  text-align: left;
  padding-left: 0.6rem;
}

/* cmidrule(lr){3-3},{4-9},{10-13} — partial rules under group headers only */
.results-table .header-top .group-hdr {
  border-bottom: 1px solid #888;
  padding-bottom: 0.3rem;
}

/* midrule — full width under second header row */
.results-table .header-sub th {
  background: white;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.3rem 0.3rem 0.4rem;
  border-bottom: 1px solid #222;
}

/* rowspan header cells also get midrule at their bottom */
.results-table .header-top th[rowspan] {
  border-bottom: 1px solid #222;
}

.results-table .header-sub th a {
  color: #333;
  text-decoration: none;
  border-bottom: 1px dashed #ccc;
  transition: all 0.15s;
}

.results-table .header-sub th a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Body cells */
.results-table tbody td {
  padding: 0.38rem 0.35rem;
  text-align: center;
  border: none;
  white-space: nowrap;
  font-size: 0.9rem;
  line-height: 1.3;
}

.results-table tbody td:first-child {
  text-align: left;
  padding-left: 0.6rem;
}

/* Model name: adjacent sibling of cat-label in group-first rows;
   td:first-child in continuation rows (already left via rule above) */
.results-table tbody .cat-label + td {
  text-align: left !important;
  padding-left: 0.5rem;
}

/* Column tints via <col> — follows paper's LaTeX \columncolor logic */
col.col-l1     { background: #f7f7f7; }  /* gray!8  */
col.col-l2g    { background: #f0f4ff; }  /* blue!6  */
col.col-l2d    { background: #ecfeff; }  /* cyan!8  */
col.col-l3-fab { background: #fefce8; }  /* yellow!12 */
col.col-l3-mab { background: #f0fdfa; }  /* teal!9  */
col.col-l3-swe { background: #f5f3ff; }  /* violet!9 */
col.col-l3-tool{ background: #fef2f2; }  /* red!6   */

/* Category label */
.cat-label {
  font-weight: 800 !important;
  font-size: 0.98rem !important;
  color: #333 !important;
  vertical-align: middle;
  text-align: left !important;
  line-height: 1.3 !important;
  letter-spacing: -0.01em;
  white-space: nowrap;
  padding-right: 0.6rem !important;
}

.ours-label {
  color: var(--primary) !important;
}

/* \midrule between category groups — full width */
.results-table tbody .cat-sep td {
  border-top: 1px solid #555;
}

/* \cmidrule{2-13} inside frontier — all tds in continuation row
   (col 1 is covered by rowspan, so border naturally skips it) */
.results-table tbody .frontier-sep td {
  border-top: 1px solid #aaa;
}

/* \bottomrule — thick bottom rule (including rowspan cell in last group) */
.results-table tbody tr:last-child td {
  border-bottom: 2px solid #222;
}

.results-table tbody td.ours-label {
  border-bottom: 2px solid #222;
}

/* Best markers */
.best-all {
  text-decoration: underline;
}

.best-8b {
  font-weight: 700;
  color: var(--primary);
}

/* Highlight row (DIVE-8B RL) */
.row-highlight td {
  font-weight: 600;
}

.row-highlight td:nth-child(2) {
  font-weight: 700;
}

/* Toggle row */
.toggle-row td {
  background: #fafbfc !important;
  padding: 0.3rem 0.6rem !important;
  border-bottom: none !important;
}

.frontier-toggle {
  cursor: pointer;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 600;
  font-size: 0.88rem;
  color: #888;
}

.frontier-toggle .toggle-icon {
  transition: transform 0.2s;
  font-size: 0.72rem;
}

.frontier-toggle.is-open .toggle-icon {
  transform: rotate(90deg);
}

.table-caption {
  font-size: 1rem;
  color: #666;
  line-height: 1.5;
  margin-bottom: 0.6rem;
}

/* ===== Benchmark Taxonomy Table ===== */
/* ===== Benchmark Taxonomy Table ===== */
.bench-taxonomy {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
}

.bench-taxonomy thead {
  border-top: 2px solid #222;
}

.bench-taxonomy thead th {
  background: white;
  color: #222;
  padding: 0.45rem 0.5rem;
  font-weight: 700;
  text-align: left;
  white-space: nowrap;
  font-size: 0.85rem;
  border-bottom: 1px solid #222;
}

.bench-taxonomy tbody td {
  padding: 0.4rem 0.5rem;
  text-align: left;
  border: none;
  line-height: 1.5;
  vertical-align: top;
}

.bench-taxonomy tbody .cat-sep td {
  border-top: 1px solid #555;
}

.bench-taxonomy tbody .cat-label {
  font-weight: 800;
  text-align: center !important;
  vertical-align: middle;
}

.bench-taxonomy tbody tr:last-child td {
  border-bottom: 2px solid #222;
}

.bench-taxonomy tbody td.cat-label.last-group {
  border-bottom: 2px solid #222;
}

.bench-taxonomy a {
  color: #333;
  text-decoration: none;
  border-bottom: 1px dashed #ccc;
  transition: all 0.15s;
}

.bench-taxonomy a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.bench-taxonomy .ood-tag {
  font-size: 0.72rem;
  padding: 0.1rem 0.35rem;
  margin-right: 0.15rem;
}

/* OOD legend */
.ood-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.2rem;
  margin-bottom: 1rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.ood-legend-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.ood-legend-item .ood-tag {
  font-size: 0.75rem;
}

/* ===== Section Intro (for Main Results) ===== */
.section-intro {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 0.8rem;
}

.section-intro p {
  margin-bottom: 0.4rem;
}

/* ===== Key Takeaway Box ===== */

.takeaway-box {
  background: linear-gradient(135deg, #f0f4ff, #f5f0ff);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  padding: 1rem 1.3rem;
  margin-top: 1.2rem;
}

.takeaway-label {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.takeaway-label i {
  margin-right: 0.3rem;
  color: #f0ad4e;
}

.takeaway-box ul {
  margin: 0;
  padding-left: 1.2rem;
}

.takeaway-box li {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.takeaway-box li strong {
  color: var(--primary-dark);
}

/* ===== Diversity Analysis: table + figures side-by-side ===== */
.diversity-row {
  display: grid;
  grid-template-columns: 40% 58%;
  gap: 2%;
  align-items: start;
}

.diversity-left .results-table-wrapper {
  width: 100%;
}

.diversity-right {
  display: flex;
  align-items: center;
}

.diversity-fig-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  width: 100%;
}

.diversity-fig {
  text-align: center;
}

.diversity-fig img {
  width: 100%;
  border-radius: 6px;
}

.diversity-fig-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
  line-height: 1.2;
}

@media (max-width: 768px) {
  .diversity-row { grid-template-columns: 1fr; }
}

/* ===== Scaling Figure 3-panel ===== */
.scaling-panel img {
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* ===== Comparison Grid ===== */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.8rem;
  margin: 1.2rem 0;
}

.comparison-item {
  background: white;
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  border-left: 3px solid var(--primary);
}

.comparison-item .metric-name {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.2rem;
  font-weight: 500;
}

.comparison-item .metric-values {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.comparison-item .metric-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.comparison-item .metric-delta {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--green);
}

/* ===== Finding Card ===== */
.finding-card {
  background: linear-gradient(135deg, #f0f4ff, #faf5ff);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  margin: 1rem 0;
  font-size: 1.05rem;
  line-height: 1.6;
}

.finding-card strong { color: var(--primary); }

/* ===== BibTeX ===== */
.bibtex-section { position: relative; }

.bibtex-box {
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
  overflow-x: auto;
}

.bibtex-copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #cdd6f4;
  border-radius: 8px;
  padding: 0.3rem 0.9rem;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.15s;
}

.bibtex-copy-btn:hover { background: rgba(255,255,255,0.15); }

.bibtex-copy-btn.copied {
  background: var(--green);
  color: white;
  border-color: var(--green);
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Footer ===== */
.footer {
  padding: 2rem 1.5rem;
  background: var(--bg-alt);
}

.footer .content {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* ===== Hero Grid (metrics+benchmarks left, figure right) ===== */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero-left {
  display: flex;
  flex-direction: column;
}

.hero-right img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ===== Benchmark section title ===== */
.bench-section-title {
  font-weight: 700;
  font-size: 1.2rem;
  margin-top: 1.5rem;
  margin-bottom: 0.3rem;
}

/* ===== Bench tier label ===== */
.bench-tier {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-top: 0.8rem;
  margin-bottom: 0.3rem;
  padding-left: 0.1rem;
}

/* ===== Bench link row ===== */
.bench-link {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.8rem;
  background: white;
  border-radius: 8px;
  margin-bottom: 0.3rem;
  text-decoration: none;
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  transition: all 0.15s;
  gap: 0.5rem;
}

.bench-link:hover {
  box-shadow: 0 3px 12px rgba(0,0,0,0.08);
  transform: translateX(3px);
  color: var(--primary);
}

.bench-link-name {
  flex: 1;
  font-weight: 600;
  font-size: 1rem;
}

.bench-link-score {
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.bench-link-arrow {
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: transform 0.15s;
}

.bench-link:hover .bench-link-arrow {
  transform: translateX(3px);
  color: var(--primary);
}

/* ===== OOD tags (reused on subpages) ===== */
.ood-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  color: white;
  margin-right: 0.2rem;
}

.ood-tag.task { background: #1e50b4; }
.ood-tag.pool { background: #008064; }
.ood-tag.set { background: #8c7832; }
.ood-tag.proto { background: #7850a0; }
.ood-tag.env { background: #b43264; }

/* ===== Progress bars (reused on subpages) ===== */
.bar-row {
  display: grid;
  grid-template-columns: 90px 1fr 55px;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.bar-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: right;
  white-space: nowrap;
}

.bar-track {
  height: 18px;
  background: #f0f0f0;
  border-radius: 9px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 9px;
  transition: width 0.6s ease;
}

.bar-fill.base { background: #cbd5e1; }
.bar-fill.baseline { background: #94a3b8; }
.bar-fill.sft { background: var(--accent2); }
.bar-fill.rl { background: var(--primary); }

.bar-val {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* ===== Subpage layout ===== */
.subpage-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.back-link {
  font-size: 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: color 0.15s;
}

.back-link:hover { color: var(--primary); }

.subpage-title {
  font-weight: 800;
  font-size: 2rem;
}

.subpage-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-label {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.meta-value {
  font-size: 1.05rem;
  font-weight: 600;
}

.subpage-desc {
  font-size: 1.15rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.score-chart {
  max-width: 500px;
  margin: 1.5rem 0;
}

.score-chart-title {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .publication-title { font-size: 2rem; }
  .section { padding: 2rem 1rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .highlight-cards { grid-template-columns: 1fr 1fr 1fr; gap: 0.5rem; }
  .highlight-card .big-number { font-size: 1.5rem; }
  .bar-row { grid-template-columns: 70px 1fr 45px; }
}