@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #111111;
  --muted: #6b6b6b;
  --line: #d9d9d9;
  --soft: #f5f5f5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'IBM Plex Sans', sans-serif;
  background: var(--bg);
  color: var(--ink);
  overflow-x: hidden;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 120px;
}

.hero {
  padding: 0 0 32px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 80px;
}

.title {
  font-size: clamp(2.4rem, 2.8vw + 1rem, 3.8rem);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
  text-align: center;
}

.hero-meta {
  display: grid;
  justify-items: center;
  margin: 0 0 6vh;
  color: var(--muted);
}

.hero-subtitle {
  max-width: 780px;
  margin: 0 0 24px;
  color: var(--ink);
  font-size: 1.28rem;
  font-weight: 500;
  line-height: 1.35;
  text-align: center;
}

.authors,
.paper-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 12px;
}

.authors {
  margin-bottom: 36px;
}

.authors a,
.paper-link {
  color: inherit;
  text-decoration: none;
}

.authors a {
  font-size: 1.2rem;
  color: #1f4fff;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.authors a:hover,
.authors a:focus-visible {
  color: #1736b8;
  opacity: 0.68;
}

.paper-link {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  padding: 5px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.paper-link.is-disabled {
  opacity: 0.58;
}

.subtitle {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
}

.abstract {
  margin-top: 16px;
  font-size: 1rem;
  line-height: 1.7;
  max-width: 800px;
  color: var(--muted);
  text-align: left;
  margin-left: auto;
  margin-right: auto;
}

.abstract-title {
  margin-top: 28px;
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.section {
  margin-top: 48px;
  scroll-margin-top: 80px;
}

.section h2 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  font-weight: 600;
}

.how-it-works-body {
  max-width: 880px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.how-it-works-body p {
  margin: 0 0 18px;
}

.math-toggle-row {
  margin: -2px 0 20px;
}

.math-toggle {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  padding: 6px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.math-toggle:hover,
.math-toggle:focus-visible {
  border-color: var(--ink);
}

nerdy[hidden] {
  display: none;
}

.nerdy-math {
  display: block;
  margin: 0 0 24px;
  padding: 2px 0 2px 18px;
  border-left: 1px solid var(--line);
  color: var(--ink);
}

.nerdy-math p {
  color: var(--muted);
}

.how-it-works-body mjx-container[jax='CHTML'][display='true'] {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 6px 0;
}

.how-it-works-body mjx-container[jax='CHTML'][display='true'] + p {
  margin-top: 18px;
}


.toc {
  position: fixed;
  left: 24px;
  top: 120px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 170px;
  padding: 16px 12px 16px 16px;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  border-left: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  z-index: 10;
}

.toc a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
  opacity: 0.55;
}

.toc a:hover {
  color: var(--ink);
  opacity: 1;
}

.toc a.is-active {
  color: var(--ink);
  opacity: 1;
  font-weight: 600;
}

.overview-wrap {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(0, 2fr) minmax(180px, 1fr);
  gap: 24px;
  align-items: stretch;
  margin: 32px 0 0;
}

.overview-panel {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  min-height: 6rem;
  position: relative;
  height: 50vh;
}

.overview-panel--inference {
  text-align: right;
}

.overview-panel-text {
  position: relative;
  transform: translateY(var(--overview-offset, 0px));
  transition: opacity 0.2s ease;
  opacity: 0;
}

.overview-panel-text.has-content {
  opacity: 1;
}

.overview-figure img,
.overview-figure svg {
  width: 100%;
  height: 50vh;
  object-fit: contain;
  display: block;
}

.overview-svg .overview-interactive {
  transition: opacity 0.2s ease;
  cursor: default;
}

.overview-svg .overview-interactive:hover {
  opacity: 0.75;
}

.overview-panel-text strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.math-label {
  font-family: 'IBM Plex Sans', sans-serif;
}

.math-sub {
  font-size: 0.7em;
  vertical-align: sub;
  letter-spacing: 0.02em;
}

.overview-caption {
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-top: 10px;
  margin-bottom: 10vh;
}

.overview-mobile-text {
  display: none;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-top: 10px;
  margin-bottom: 10vh;
  min-height: 6rem;
  opacity: 1;
  transition: opacity 0.2s ease;
}

.overview-mobile-text strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.overview-mobile-text.has-content {
  opacity: 1;
}


.seed-note {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.quant-toggle {
  display: inline-flex;
  gap: 12px;
  margin: 4px 0 16px;
}

.quant-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.quant-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.quant-tab {
  padding-bottom: 6px;
}

.tab-label {
  font-weight: 600;
}

.tab-subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.toggle-btn {
  border: 1px solid var(--line);
  background: none;
  color: var(--muted);
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.toggle-btn.active {
  color: var(--ink);
  border-color: var(--ink);
}

@media (max-width: 720px) {
  .quant-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .quant-tabs {
    width: 100%;
  }

  .quant-toggle {
    width: 100%;
    flex-wrap: wrap;
  }
}

.quant-table {
  overflow-x: auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 24px;
}

.quant-table table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  table-layout: fixed;
}

.quant-table th,
.quant-table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.quant-table th {
  font-weight: 600;
  color: var(--muted);
  background: var(--soft);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.quant-table td.numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.quant-table th.numeric {
  text-align: right;
}

.quant-table .duration {
  text-align: center;
}

.quant-table th.model,
.quant-table td.model {
  width: 160px;
}

.quant-table th.duration,
.quant-table td.duration {
  width: 120px;
  text-align: center;
}

.is-hidden {
  display: none;
}

.quant-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin: 12px 0 20px;
  font-size: 0.8rem;
  color: var(--muted);
}

.quant-subtitle {
  margin: -8px 0 16px;
  font-size: 0.8rem;
  color: var(--muted);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.legend-swatch {
  width: 12px;
  height: 12px;
  background: #000;
  border-radius: 2px;
}

.quant-charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.quant-charts[data-layout='english'] {
  grid-template-columns: repeat(2, minmax(240px, 1fr));
}

.quant-charts[data-layout='multi'] {
  grid-template-columns: repeat(3, minmax(220px, 1fr));
}

.chart {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.chart-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 600;
}

.chart svg {
  width: 100%;
  height: 240px;
  display: block;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.tab {
  border: none;
  background: none;
  color: var(--muted);
  padding: 6px 0;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.tab.active {
  color: var(--ink);
  border-color: var(--ink);
}

.subtabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 4px 0 20px;
}

.subtab {
  border: 1px solid var(--line);
  background: none;
  color: var(--muted);
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  transition: all 0.2s ease;
}

.subtab.active {
  color: var(--ink);
  border-color: var(--ink);
}

.carousel {
  position: relative;
}

.carousel-track {
  display: flex;
  gap: 48px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 12px 0 24px;
  scroll-behavior: smooth;
}

.carousel-track::-webkit-scrollbar {
  height: 8px;
}

.carousel-track::-webkit-scrollbar-thumb {
  background: #c4c4c4;
}

.carousel-item {
  scroll-snap-align: start;
  flex: 0 0 100%;
  min-width: 0;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.sample-header {
  display: flex;
  justify-content: center;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.sample-id {
  font-weight: 600;
  font-size: 1.1rem;
  text-align: center;
}

.sample-section {
  margin-top: 16px;
}

.section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--muted);
  margin-bottom: 10px;
  font-weight: 600;
}

.sample-grid {
  display: grid;
  grid-template-columns: minmax(160px, 200px) repeat(var(--seed-count), minmax(220px, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-right: none;
  border-bottom: none;
}

.grid-cell {
  padding: 10px;
  min-height: 64px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
}

.grid-head {
  font-weight: 600;
  color: var(--muted);
  background: var(--soft);
}

.grid-corner {
  color: var(--ink);
}

.grid-label {
  font-weight: 600;
  background: #fafafa;
}

.grid-cell.missing::after {
  content: 'Missing';
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.7rem;
  color: var(--muted);
}

audio {
  width: 100%;
}

.carousel-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.top-controls {
  margin: 4px 0 16px;
}

.ablation-block {
  margin-top: 48px;
  scroll-margin-top: 80px;
}

.ablation-note {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 760px;
}

.ablation-list {
  display: grid;
  gap: 32px;
}

.ablation-item {
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.ablation-item:first-child {
  border-top: none;
  padding-top: 0;
}

.nav-button {
  border: 1px solid var(--line);
  background: none;
  padding: 6px 14px;
  font-weight: 600;
  cursor: pointer;
}

.nav-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.indicator {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.85rem;
  color: var(--muted);
}

.note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .sample-grid {
    grid-template-columns: minmax(140px, 180px) repeat(var(--seed-count), minmax(200px, 1fr));
  }

  .quant-charts {
    grid-template-columns: 1fr;
  }

  .quant-charts[data-layout='english'],
  .quant-charts[data-layout='multi'] {
    grid-template-columns: 1fr;
  }

  .overview-wrap {
    grid-template-columns: 1fr;
  }

  .overview-panel {
    display: none;
  }

  .overview-caption {
    display: none;
  }

  .overview-mobile-text {
    display: block;
  }
}

@media (max-width: 1100px) {
  .toc {
    display: none;
  }
}

@media (max-width: 700px) {
  .page {
    padding: 36px 16px 100px;
  }

  .sample-grid {
    grid-template-columns: minmax(120px, 160px) repeat(var(--seed-count), minmax(180px, 1fr));
  }

  .carousel-controls {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 1100px) {
  .page {
    padding-left: 240px;
  }
}