:root {
  color-scheme: dark;
  --bg: #050505;
  --surface: #0d0d0b;
  --surface-2: #17140d;
  --text: #ffffff;
  --muted: #ffffff;
  --line: #3f3414;
  --accent: #d4af37;
  --accent-2: #f1c85b;
  --button-bg: #f1c232;
  --button-text: #000000;
  --shadow: 0 20px 68px rgba(0, 0, 0, 0.46);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #fffdf6;
  --surface-2: #fff7df;
  --text: #17130a;
  --muted: #17130a;
  --line: #e6d59b;
  --accent: #b8860b;
  --accent-2: #d4af37;
  --button-bg: #fff0b8;
  --button-text: #17130a;
  --shadow: 0 18px 48px rgba(105, 80, 12, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

body.lightbox-open {
  overflow: hidden;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto auto;
  gap: 20px;
  align-items: center;
  min-height: 68px;
  padding: 0 32px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(16px);
}

.brand {
  font-weight: 760;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 6px;
  align-items: center;
}

.nav a,
.theme-toggle,
.button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--button-bg);
  color: var(--button-text);
  font: inherit;
  font-weight: 680;
  text-decoration: none;
}

.nav a {
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: var(--button-text);
}

.theme-toggle {
  padding: 0 14px;
  cursor: pointer;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 14px;
}

.button-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  fill: currentColor;
}

.button-icon--hf {
  display: block;
  width: 30px;
  height: 24px;
  object-fit: contain;
}

.button.primary {
  border-color: color-mix(in srgb, var(--button-bg) 62%, var(--line));
  background: var(--button-bg);
  color: var(--button-text);
}

.button,
.theme-toggle {
  background: var(--button-bg);
  color: var(--button-text);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  min-width: 76px;
  min-height: 40px;
  padding: 0;
  overflow: hidden;
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 82%, var(--button-bg));
  color: var(--text);
  cursor: pointer;
  transition:
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 24%, transparent);
}

.theme-toggle__track {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  width: 100%;
  height: 100%;
  min-height: 40px;
  padding: 3px;
}

.theme-toggle__icon {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  font-size: 1rem;
  line-height: 1;
  color: color-mix(in srgb, var(--text) 76%, transparent);
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.theme-toggle__icon--light {
  transform: translateX(-2px);
}

.theme-toggle__icon--dark {
  transform: translateX(2px);
}

.theme-toggle__thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  z-index: 1;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: var(--button-bg);
  box-shadow: 0 5px 16px rgba(0, 0, 0, 0.24);
  transform: translateX(0);
  transition:
    transform 200ms ease,
    background 180ms ease;
}

html[data-theme="dark"] .theme-toggle__thumb {
  transform: translateX(38px);
}

html[data-theme="light"] .theme-toggle__icon--light,
html[data-theme="dark"] .theme-toggle__icon--dark {
  color: var(--button-text);
}

html[data-theme="light"] .theme-toggle__icon--light {
  transform: translateX(-2px) scale(1.04);
}

html[data-theme="dark"] .theme-toggle__icon--dark {
  transform: translateX(2px) scale(1.04);
}

.side-rail {
  position: fixed;
  top: 50%;
  right: 10px;
  z-index: 18;
  display: grid;
  gap: 7px;
  width: 42px;
  padding: 10px 8px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  transform: translateY(-50%);
  transition:
    width 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.side-rail:hover,
.side-rail:focus-within {
  width: 290px;
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: var(--shadow);
}

.side-rail__link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  min-height: 30px;
  color: var(--muted);
  text-decoration: none;
  outline: 0;
}

.side-rail__bar {
  justify-self: end;
  width: 16px;
  height: 3px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 32%, transparent);
  transition:
    width 160ms ease,
    height 160ms ease,
    background 160ms ease,
    transform 160ms ease;
}

.side-rail__copy {
  display: grid;
  min-width: 0;
  opacity: 0;
  transform: translateX(8px);
  transition:
    opacity 150ms ease,
    transform 150ms ease;
}

.side-rail:hover .side-rail__copy,
.side-rail:focus-within .side-rail__copy {
  opacity: 1;
  transform: translateX(0);
}

.side-rail__title,
.side-rail__subtitle {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.side-rail__title {
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 820;
  line-height: 1.12;
}

.side-rail__subtitle {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 620;
  line-height: 1.18;
}

.side-rail__link:hover .side-rail__bar,
.side-rail__link:focus-visible .side-rail__bar {
  width: 28px;
  height: 4px;
  background: var(--accent-2);
}

.side-rail__link.is-active .side-rail__bar {
  width: 32px;
  height: 5px;
  background: var(--accent);
}

.side-rail__link.is-active .side-rail__title {
  color: var(--accent-2);
}

main {
  width: min(1480px, calc(100% - 48px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) auto;
  gap: 46px;
  align-items: center;
  min-height: calc(100vh - 68px);
  padding: 34px 0 40px;
}

.hero-copy {
  max-width: 850px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 780;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(1.75rem, 3.65vw, 3.55rem);
  line-height: 1.03;
  letter-spacing: 0;
  color: var(--text);
}

.hero .hero-title {
  color: var(--text);
}

.author {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--text);
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  font-weight: 700;
}

.author a {
  color: var(--text);
  text-decoration-color: color-mix(in srgb, var(--accent) 56%, transparent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.hero-date {
  display: grid;
  gap: 1px;
  margin: 4px 0 0;
  color: color-mix(in srgb, var(--text) 76%, transparent);
  font-size: 0.98rem;
  font-weight: 650;
}

h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3.2vw, 3rem);
  line-height: 1.08;
  letter-spacing: 0;
  color: var(--text);
}

h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  line-height: 1.25;
  letter-spacing: 0;
  color: var(--text);
}

h4 {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.3;
  letter-spacing: 0;
}

.lede {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

.subtitle {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--text);
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
  font-weight: 780;
}

.subtitle a {
  color: var(--text);
  text-decoration-color: color-mix(in srgb, var(--accent) 56%, transparent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.subtitle .placement-line {
  display: block !important;
}

.quote {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  font-style: italic;
  font-weight: 520;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.hero-media {
  align-self: center;
}

.portrait-videos {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 14px;
  justify-content: end;
}

.portrait-video-card {
  margin: 0;
}

.portrait-video {
  display: block;
  width: auto;
  height: min(680px, calc(100vh - 190px));
  aspect-ratio: 478 / 850;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #000000;
  box-shadow: var(--shadow);
  object-fit: contain;
}

.portrait-video-card figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
}

.video-note {
  margin: 14px 0 0;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 780;
  text-align: center;
}

.section {
  padding: 78px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  margin-bottom: 30px;
}

.section-heading .eyebrow {
  margin-top: 8px;
}

.section-subnote {
  grid-column: 1 / -1;
  max-width: 720px;
  margin: -18px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
  font-style: italic;
  line-height: 1.55;
}

.summary-section {
  padding-top: 48px;
}

.abstract-section {
  padding-top: 56px;
}

.research-lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: 28px;
  align-items: start;
}

.claim-panel,
.research-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.claim-panel {
  padding: 18px;
}

.claim-panel h3,
.research-card h3 {
  margin: 0 0 10px;
}

.claim-panel p,
.research-card p {
  margin: 0;
  color: var(--muted);
}

.compact-results-wrap {
  margin-top: 34px;
}

.compact-results-table th:first-child,
.compact-results-table td:first-child {
  min-width: 230px;
}

.research-card-grid,
.research-direction-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.research-card-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.research-direction-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.research-vision-layout {
  display: grid;
  grid-template-columns: minmax(620px, 1fr) minmax(320px, 380px);
  gap: 28px;
  align-items: start;
}

.research-card {
  padding: 18px;
}

.research-vision {
  max-width: none;
}

.research-vision h3 {
  margin: 0 0 12px;
}

.research-vision p {
  margin: 0;
  color: var(--muted);
}

.research-vision p + p {
  margin-top: 12px;
}

.research-direction-flowcharts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  justify-items: start;
}

.research-direction-flowcharts .image-frame {
  width: min(100%, 360px);
  padding: 8px;
}

.research-card ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.prose {
  max-width: 760px;
  color: var(--muted);
}

.prose p {
  margin: 0 0 18px;
}

.prose h3 {
  color: var(--text);
}

.training-strategy-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(360px, 1fr);
  gap: 40px;
  align-items: start;
}

.training-strategy-layout .prose {
  max-width: none;
}

.training-strategy-layout--staged {
  grid-template-columns: minmax(0, 560px) minmax(0, 1fr);
}

.training-run-block {
  margin-top: 64px;
}

.training-run-title {
  font-size: clamp(1.45rem, 2vw, 2rem);
  line-height: 1.15;
  margin-top: 0;
  margin-bottom: 10px;
}

.training-config-panel {
  min-width: 0;
}

.training-config-panel h3 {
  margin: 0 0 14px;
  color: var(--text);
}

.training-config-panel .solver-parameter-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.training-config-stack {
  display: grid;
  gap: 18px;
}

.training-strategy-layout--staged .training-config-stack {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}

.training-stage-config h4 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 0.98rem;
}

.training-config-panel--compact .solver-parameter-list {
  gap: 8px;
}

.training-config-panel--compact .solver-parameter-list div {
  padding: 9px;
}

.training-strategy-layout--staged .training-config-panel--compact .solver-parameter-list {
  gap: 6px;
}

.training-strategy-layout--staged .training-config-panel--compact .solver-parameter-list div {
  padding: 7px;
}

.training-config-panel--compact .solver-parameter-list strong,
.training-config-panel--compact .solver-parameter-list span {
  font-size: 0.86rem;
  line-height: 1.25;
}

.training-strategy-layout--staged .training-config-panel--compact .solver-parameter-list strong,
.training-strategy-layout--staged .training-config-panel--compact .solver-parameter-list span {
  font-size: 0.78rem;
}

.training-eval-heading {
  margin-top: 42px;
}

.training-eval-heading h3 {
  margin-bottom: 16px;
}

.training-eval-summary {
  margin-top: 28px;
}

.training-transition-callout {
  margin-top: 64px;
  padding-top: 8px;
}

.training-transition-callout h3 {
  margin-top: 0;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.timeline > a.timeline-card:nth-child(6) {
  grid-column: auto;
  grid-row: auto;
}

.timeline > a.timeline-card:nth-child(7) {
  grid-column: auto;
  grid-row: auto;
}

.timeline > a.timeline-card,
.placeholder,
.video-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.timeline > a.timeline-card {
  position: relative;
  display: block;
  min-height: 145px;
  padding: 12px;
  color: var(--text);
  text-decoration: none !important;
}

.timeline > a.timeline-card h3,
.timeline > a.timeline-card p,
.timeline > a.timeline-card span {
  text-decoration: none !important;
}

.timeline > a.timeline-card:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.timeline > a.timeline-card:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -15px;
  z-index: 5;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--button-bg);
  color: var(--button-text);
  font-size: 1rem;
  font-weight: 800;
  transform: translate(50%, -50%);
  box-shadow: var(--shadow);
}

.timeline > a.timeline-card:nth-child(5)::after {
  content: "↓";
  top: auto;
  right: 50%;
  bottom: -16px;
  transform: translate(50%, 50%);
}

.timeline > a.timeline-card:nth-child(6)::after {
  content: "←";
  top: 50%;
  right: auto;
  left: -15px;
  transform: translate(-50%, -50%);
}

.timeline > a.timeline-card:nth-child(5)::after {
  content: "\2192";
  top: 50%;
  right: -15px;
  bottom: auto;
  transform: translate(50%, -50%);
}

.timeline > a.timeline-card:nth-child(6)::after {
  content: none;
  display: none;
}

.timeline > a.timeline-card::after {
  content: none !important;
  display: none !important;
}

.timeline span {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 800;
}

.timeline p,
.cards p,
.callout p,
.asset-list {
  margin: 0;
  color: var(--muted);
}

.cards article,
.callout {
  min-width: 0;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 460px);
  gap: 26px;
  align-items: stretch;
}

.kinematics-explainer {
  display: grid;
  gap: 18px;
}

.explain-card {
  padding: 0;
}

.explain-card--wide {
  max-width: 1080px;
}

.explain-card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.explain-card p:last-child {
  margin-bottom: 0;
}

.equation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.equation-card {
  min-width: 0;
  padding: 0;
}

.math-block {
  overflow-x: auto;
  margin: 16px 0;
  padding: 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 44%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--button-bg) 9%, var(--surface));
  color: var(--text);
}

.math-block mjx-container {
  margin: 0 !important;
  color: var(--text);
}

.placeholder {
  display: grid;
  align-content: center;
  min-height: 360px;
  padding: 26px;
  background:
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    linear-gradient(0deg, var(--line) 1px, transparent 1px),
    var(--surface);
  background-size: 38px 38px;
}

.placeholder p {
  width: fit-content;
  margin: 0 0 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--surface-2);
  font-weight: 760;
}

.placeholder span {
  max-width: 360px;
  color: var(--muted);
}

.image-frame {
  display: grid;
  align-items: center;
  margin: 0;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 68%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 88%, var(--surface));
  box-shadow:
    0 24px 70px color-mix(in srgb, var(--accent) 16%, transparent),
    0 10px 34px rgba(0, 0, 0, 0.18);
  cursor: zoom-in;
}

.image-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.data-flowchart-figure {
  width: 100%;
}

.theme-image--dark {
  display: none !important;
}

html[data-theme="dark"] .theme-image--light {
  display: none !important;
}

html[data-theme="dark"] .theme-image--dark {
  display: block !important;
}

.image-lightbox-trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.image-lightbox-trigger:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
  border-radius: 8px;
}

.le-data-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 620px);
  gap: 34px;
  align-items: start;
}

.le-data-layout .prose {
  max-width: none;
}

.le-data-flowchart {
  width: 100%;
  margin: 0;
}

.future-latent-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 620px);
  gap: 32px;
  align-items: start;
  margin-bottom: 28px;
}

.future-latent-layout .prose {
  max-width: none;
}

.future-latent-flowchart {
  width: 100%;
}

.future-latent-subsection {
  margin-top: 42px;
  margin-bottom: 30px;
}

.resampler-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 650px);
  gap: 32px;
  align-items: start;
}

.future-predictor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 650px);
  gap: 32px;
  align-items: start;
}

.resampler-layout .prose,
.future-predictor-layout .prose {
  max-width: none;
}

.resampler-layout h3,
.future-predictor-layout h3 {
  margin-top: 0;
}

.resampler-media-stack,
.future-predictor-media-stack {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.resampler-flowchart,
.resampler-loss-figure,
.future-predictor-flowchart,
.future-predictor-plot {
  width: 100%;
  margin: 0;
}

.resampler-stat-list,
.future-predictor-stat-list {
  margin-top: 18px;
}

.resampler-stat-list span,
.future-predictor-stat-list span {
  font-size: 0.92rem;
  line-height: 1.34;
}

.resampler-loss-block,
.future-predictor-loss-block {
  margin-top: 18px;
  margin-bottom: 18px;
}

.future-predictor-conclusion {
  display: grid;
  gap: 14px;
}

.future-predictor-summary-list {
  margin-top: 0;
}

.future-equation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.future-equation-card {
  min-width: 0;
  margin: 0;
}

.future-equation-card h4 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 0.96rem;
}

.future-equation-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.38;
}

.dataset-feature-table-wrap {
  overflow-x: auto;
  overflow-y: hidden;
  margin-top: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--button-bg);
}

.dataset-feature-table {
  width: 100%;
  min-width: 1160px;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface);
}

.dataset-feature-table th,
.dataset-feature-table td {
  padding: 12px 14px;
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 400;
  text-align: left;
  vertical-align: top;
}

.dataset-feature-table th:first-child,
.dataset-feature-table td:first-child {
  width: 190px;
}

.dataset-feature-table th:not(:first-child),
.dataset-feature-table td:not(:first-child) {
  width: calc((100% - 190px) / 3);
}

.dataset-feature-table th:first-child,
.dataset-feature-table td:first-child {
  border-left: 0;
}

.dataset-feature-table thead th {
  border-top: 0;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 780;
}

.dataset-feature-table thead th:first-child {
  border-top-left-radius: 8px;
}

.dataset-feature-table thead th:last-child {
  border-top-right-radius: 8px;
}

.dataset-feature-table thead,
.dataset-feature-table thead tr {
  background: var(--button-bg);
}

.table-header-note {
  display: block;
  margin-top: 3px;
  color: var(--button-text);
  font-size: 0.78rem;
  font-weight: 620;
}

.dataset-feature-table td:empty::after {
  content: "";
  display: block;
  min-height: 1.45em;
}

.dataset-summary-row td {
  background: color-mix(in srgb, var(--surface-2) 68%, var(--surface));
  color: var(--text);
  font-weight: 400;
}

.dataset-feature-table .row-title {
  color: var(--text);
  font-weight: 780;
}

.cumulative-results-wrap {
  margin-top: 8px;
}

.cumulative-results-table {
  min-width: 0;
  table-layout: fixed;
}

.cumulative-results-table th,
.cumulative-results-table td {
  padding: 9px 7px;
  font-size: 0.82rem;
  text-align: center;
  white-space: nowrap;
}

.cumulative-results-table .row-title {
  text-align: left;
  white-space: normal;
}

.cumulative-results-table th:first-child,
.cumulative-results-table td:first-child {
  width: 210px;
}

.cumulative-results-table th:not(:first-child),
.cumulative-results-table td:not(:first-child) {
  width: calc((100% - 210px) / 14);
}

.cumulative-results-table th {
  overflow-wrap: normal;
}

.cumulative-results-table td {
  overflow-wrap: normal;
}

.metric-value,
.metric-gain {
  display: block;
  line-height: 1.12;
}

.metric-gain {
  margin-top: 3px;
  font-size: 0.72rem;
}

.gain-positive,
.gain-negative,
.gain-neutral {
  font-weight: 820;
}

.gain-positive {
  color: #0f8f3a !important;
}

html[data-theme="dark"] .gain-positive {
  color: #5ee083 !important;
}

.gain-negative {
  color: #c62828 !important;
}

html[data-theme="dark"] .gain-negative {
  color: #ff6b6b !important;
}

.gain-neutral {
  color: var(--muted);
}

.cumulative-results-table .gain-neutral {
  color: var(--text) !important;
  font-weight: 900;
}

.cumulative-results-conclusion {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.finals-video-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.finals-video-row-label {
  grid-column: 1 / -1;
  color: var(--text);
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  font-weight: 820;
}

.video-speed-note {
  margin-left: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.learning-section-title {
  margin-top: 30px;
}

.finals-video-section-title {
  grid-column: 1 / -1;
  color: var(--text);
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  font-weight: 860;
  line-height: 1.2;
}

.finals-video-card {
  min-width: 0;
  margin: 0;
}

.finals-video-card video,
.finals-video-placeholder div {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  object-fit: cover;
}

.finals-video-card video {
  cursor: pointer;
}

.finals-video-placeholder div {
  display: grid;
  place-items: center;
  padding: 18px;
  color: var(--muted);
  font-weight: 780;
  text-align: center;
}

.finals-video-card figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
}

.finals-failure-note {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.finals-failure-note p {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}

.results-next-note {
  margin-top: 22px;
}

.evaluation-protocol-note {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.proof-gap-title {
  margin-top: 30px;
}

.proof-gap-intro {
  max-width: 940px;
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.68;
}

.proof-gap-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.learning-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.learning-card h3 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.25;
}

.learning-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.68;
}

.dataset-video-cell {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.dataset-video-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-items: start;
}

.dataset-cell-video {
  display: block;
  width: min(100%, 220px);
  margin: 0 auto;
  aspect-ratio: 4 / 3;
  border: 0;
  border-radius: 6px;
  background: transparent;
  object-fit: cover;
}

.dataset-missing-video {
  display: grid;
  place-items: center;
  width: min(100%, 220px);
  margin: 0 auto;
  aspect-ratio: 4 / 3;
  border: 1px dashed var(--accent);
  border-radius: 6px;
  background: color-mix(in srgb, var(--button-bg) 18%, var(--surface));
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 780;
  text-align: center;
}

.dataset-video-cell span {
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.25;
  text-align: center;
}

.solver-learn-more {
  display: grid;
  justify-items: center;
  gap: 14px;
  margin-top: 20px;
  text-align: center;
}

.solver-learn-more p {
  max-width: 840px;
  margin: 0;
  color: var(--text);
  font-size: clamp(1rem, 1.35vw, 1.16rem);
  font-weight: 400;
  line-height: 1.28;
}

.solver-modal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 0;
}

.critic-detour-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  margin: 24px 0 36px;
  padding: 18px;
  border: 1px solid color-mix(in srgb, var(--accent) 46%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface-2) 58%, var(--bg));
}

.critic-detour-card .prose {
  min-width: 0;
}

.critic-detour-card h3 {
  margin: 0 0 8px;
}

.critic-detour-card p {
  max-width: 980px;
  margin: 0;
}

.critic-detour-card .button {
  white-space: nowrap;
}

.validation-block {
  margin-top: 42px;
}

.validation-block > h3 {
  margin-bottom: 20px;
  font-size: clamp(1.45rem, 2.4vw, 2.2rem);
}

.validation-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(460px, 0.82fr);
  gap: 34px;
  align-items: start;
}

.validation-copy {
  min-width: 0;
}

.validation-copy p {
  max-width: 620px;
  margin: 0 0 14px;
  color: var(--muted);
}

.validation-flowchart {
  justify-self: end;
  width: min(100%, 660px);
  margin: 0;
}

.validation-flowchart img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.validation-visual {
  display: grid;
  justify-items: end;
  align-content: start;
  gap: 10px;
}

.validation-results-heading {
  width: min(100%, 760px);
  margin: 42px 0 0;
  text-align: center;
}

.validation-table-wrap {
  width: min(100%, 660px);
  overflow-x: auto;
}

.validation-results-table {
  width: 100%;
  min-width: 560px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.validation-results-table th,
.validation-results-table td {
  padding: 8px 10px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.25;
  text-align: left;
  vertical-align: middle;
}

.validation-results-table td {
  overflow-wrap: anywhere;
}

.validation-results-table .dataset-cell,
.validation-results-table .error-type-cell,
.validation-results-table .stat-cell {
  color: var(--text);
  font-weight: 760;
}

.validation-results-table .error-type-spacer {
  color: transparent;
}

.validation-results-table .dataset-cell,
.validation-results-table .coverage-cell,
.validation-results-table .error-type-cell,
.validation-results-table .error-type-spacer,
.validation-results-table .stat-cell {
  text-align: left;
}

.validation-results-table td:last-child {
  font-variant-numeric: tabular-nums;
}

.validation-results-table .dataset-group-start td {
  border-top: 2px solid color-mix(in srgb, var(--accent) 54%, var(--line));
}

.validation-results-table .error-group-start td {
  border-top: 1px solid color-mix(in srgb, var(--accent) 58%, var(--line));
}

.validation-results-table--wide {
  table-layout: auto;
}

.validation-results-table th:first-child,
.validation-results-table td:first-child {
  border-left: 0;
}

.validation-results-table thead th {
  border-top: 0;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 780;
  white-space: nowrap;
}

.validation-subsection {
  margin-top: 34px;
  max-width: 980px;
}

.validation-copy h4,
.validation-subsection h4 {
  font-size: clamp(1.18rem, 1.65vw, 1.45rem);
}

.validation-subsection p {
  margin: 0 0 14px;
  color: var(--muted);
}

.visual-validation-subsection {
  max-width: 980px;
}

.visual-validation-table-wrap {
  width: fit-content;
  max-width: 100%;
  margin-top: 18px;
  overflow-x: auto;
}

.visual-validation-table {
  width: auto;
  min-width: 0;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.visual-validation-table th,
.visual-validation-table td {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  color: var(--muted);
  text-align: left;
  vertical-align: middle;
}

.visual-validation-table td:nth-child(2) {
  padding: 0;
  width: 760px;
}

.visual-validation-table th:first-child,
.visual-validation-table td:first-child {
  width: 190px;
  border-left: 0;
  color: var(--text);
  font-weight: 760;
}

.visual-validation-table thead th {
  border-top: 0;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 780;
}

.validation-video {
  display: block;
  width: 760px;
  max-width: 100%;
  height: auto;
  border: 0;
  border-radius: 6px;
  background: transparent;
  object-fit: contain;
  cursor: zoom-in;
}

.solver-modal {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 34px;
}

.solver-modal:target {
  display: flex;
}

.solver-modal__backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, #000000 76%, transparent);
  backdrop-filter: blur(14px);
}

.solver-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(94vw, 1320px);
  max-height: 90vh;
  overflow: auto;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.62);
}

.solver-modal__close {
  position: sticky;
  top: 0;
  z-index: 2;
  float: right;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  margin-left: 14px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 760;
  text-decoration: none;
}

.solver-modal__content {
  display: grid;
  gap: 18px;
}

.solver-modal__content > p {
  max-width: 960px;
  margin: 0;
  color: var(--muted);
}

.solver-prose {
  gap: 22px;
}

.solver-prose h2 {
  max-width: 960px;
}

.solver-section {
  min-width: 0;
}

.solver-section h3 {
  margin-bottom: 12px;
}

.solver-section p {
  max-width: 1080px;
  margin: 0 0 14px;
  color: var(--muted);
}

.solver-section p:last-child {
  margin-bottom: 0;
}

.solver-section .math-block {
  margin: 16px 0;
}

.critic-modal .solver-modal__dialog {
  width: min(96vw, 1480px);
}

.critic-modal-content h4 {
  margin: 24px 0 10px;
  font-size: clamp(1.05rem, 1.35vw, 1.28rem);
}

.critic-modal-content h5 {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 0 10px;
  font-size: 0.98rem;
}

.critic-modal-content h5 span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 620;
}

.critic-spec-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0;
}

.critic-spec-grid div {
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.critic-spec-grid strong {
  color: var(--text);
  font-size: 0.84rem;
}

.critic-spec-grid span {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.78rem;
  overflow-wrap: anywhere;
}

.critic-figure-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 18px;
  justify-items: end;
}

.critic-figure {
  width: min(100%, 420px);
  max-width: 420px;
  padding: 8px;
}

.critic-modal-content .solver-section:has(.critic-figure-grid) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 10px 24px;
  align-items: start;
}

.critic-modal-content .solver-section:has(.critic-figure-grid) > h3 {
  grid-column: 1 / -1;
}

.critic-modal-content .solver-section:has(.critic-figure-grid) > p,
.critic-modal-content .solver-section:has(.critic-figure-grid) > .math-block,
.critic-modal-content .solver-section:has(.critic-figure-grid) > .critic-spec-grid {
  grid-column: 1;
}

.critic-modal-content .solver-section:has(.critic-figure-grid) > .critic-figure-grid {
  grid-column: 2;
  grid-row: 2 / span 8;
  margin-top: 0;
}

.critic-placeholder-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.critic-placeholder-grid div {
  display: grid;
  place-items: center;
  min-height: 130px;
  padding: 14px;
  border: 1px dashed color-mix(in srgb, var(--accent) 70%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--button-bg) 10%, var(--surface));
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  text-align: center;
}

.critic-plot-card {
  display: grid;
  gap: 6px;
  align-content: start;
  margin: 0;
  padding: 6px;
  border: 1px solid color-mix(in srgb, var(--accent) 48%, var(--line));
  border-radius: 8px;
  background: var(--surface);
}

.critic-plot-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.critic-plot-card figcaption {
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 780;
  line-height: 1.25;
  text-align: center;
}

.critic-mc-return-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.critic-performance-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 12px 0 20px;
}

.critic-performance-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.critic-table-wrap {
  max-width: 100%;
  overflow-x: auto;
}

.critic-metric-table {
  width: 100%;
  min-width: 880px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.critic-metric-table th,
.critic-metric-table td {
  padding: 8px 9px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.25;
  text-align: right;
  white-space: nowrap;
}

.critic-metric-table th:first-child,
.critic-metric-table td:first-child {
  border-left: 0;
  color: var(--text);
  font-weight: 760;
  text-align: left;
}

.critic-metric-table thead th {
  border-top: 0;
  background: var(--surface-raised);
  color: var(--text);
  font-weight: 780;
}

.critic-garment-table {
  width: min(100%, 900px);
  min-width: 760px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.critic-garment-table th,
.critic-garment-table td {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.25;
  text-align: right;
}

.critic-garment-table th:first-child,
.critic-garment-table td:first-child {
  border-left: 0;
  color: var(--text);
  font-weight: 760;
  text-align: left;
}

.critic-garment-table thead th {
  border-top: 0;
  background: var(--surface-raised);
  color: var(--text);
  font-weight: 780;
}

.solver-parameter-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.solver-parameter-list div {
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--button-bg) 8%, var(--surface));
}

.solver-parameter-list strong {
  color: var(--text);
}

.solver-parameter-list span {
  color: var(--muted);
}

.solver-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.solver-detail-card {
  min-width: 0;
  padding: 0;
}

.solver-detail-card--wide {
  max-width: none;
}

.solver-detail-card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.solver-detail-card p:last-child {
  margin-bottom: 0;
}

.parameter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 12px 0 16px;
}

.parameter-grid div {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--button-bg) 8%, var(--surface));
}

.parameter-grid strong {
  color: var(--text);
}

.parameter-grid span {
  color: var(--muted);
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 140;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 42px;
}

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

.image-lightbox:target {
  display: flex;
}

body.lightbox-open .image-lightbox {
  display: flex;
}

.image-lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, #000000 76%, transparent);
  backdrop-filter: blur(14px);
}

.image-lightbox__dialog {
  position: relative;
  z-index: 1;
  width: min(94vw, 1280px);
  max-height: 90vh;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.62);
}

.image-lightbox__dialog img,
.image-lightbox__dialog video {
  display: block;
  width: 100%;
  max-height: calc(90vh - 74px);
  object-fit: contain;
  border-radius: 6px;
}

.image-lightbox__dialog [hidden] {
  display: none !important;
}

.image-lightbox__close {
  position: absolute;
  top: -18px;
  right: -18px;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--button-bg);
  color: var(--button-text);
  font: inherit;
  font-weight: 760;
  text-decoration: none;
  cursor: pointer;
}

.grid {
  display: grid;
  gap: 14px;
}

.cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards article {
  min-height: 170px;
  padding: 20px;
}

.model-table {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.model-table [role="row"] {
  display: grid;
  grid-template-columns: minmax(210px, 0.75fr) minmax(280px, 1.3fr) minmax(230px, 1fr);
  border-top: 1px solid var(--line);
}

.model-table [role="row"]:first-child {
  border-top: 0;
}

.model-table span {
  min-width: 0;
  padding: 14px 16px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  overflow-wrap: anywhere;
}

.model-table span:first-child {
  border-left: 0;
  color: var(--text);
  font-weight: 720;
}

.model-table .table-head {
  background: var(--surface-2);
}

.model-table .table-head span {
  color: var(--text);
  font-weight: 780;
}

.video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.video-card {
  display: grid;
  place-items: center;
  min-height: 180px;
  padding: 18px;
  color: var(--muted);
  font-weight: 740;
}

.callout {
  margin-top: 18px;
}

.results-table [role="row"] {
  grid-template-columns:
    minmax(190px, 1fr) repeat(4, minmax(88px, 0.45fr))
    minmax(190px, 1fr);
}

.asset-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 28px;
  padding-left: 20px;
}

.asset-list li {
  padding-left: 4px;
}

.special-thanks-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  gap: 32px;
  align-items: start;
}

.special-thanks-copy {
  max-width: none;
}

.special-thanks-copy a {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
}

.special-thanks-final-note {
  margin-top: 30px;
}

.special-thanks-final-note p {
  margin-bottom: 0;
}

.special-thanks-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.special-thanks-photo-card {
  min-width: 0;
  margin: 0;
}

.special-thanks-photo-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3.7;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #000000;
  object-fit: cover;
  object-position: center;
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}

.special-thanks-photo-card:first-child img {
  object-position: center 38%;
}

.special-thanks-photo-card .image-lightbox-trigger {
  display: block;
  cursor: zoom-in;
}

.special-thanks-photo-card .image-lightbox-trigger:hover img,
.special-thanks-photo-card .image-lightbox-trigger:focus-visible img {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.special-thanks-photo-card figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 640;
  line-height: 1.45;
}

.special-thanks-photo-card figcaption a,
.organizer-section-heading a {
  color: var(--text);
  text-decoration-color: color-mix(in srgb, var(--accent) 56%, transparent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.special-thanks-sponsor {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 28px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-weight: 780;
}

.special-thanks-sponsor span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 680;
}

.special-thanks-sponsor img {
  width: auto;
  height: 28px;
  object-fit: contain;
}

.organizer-section-heading {
  margin-top: 46px;
  margin-bottom: 22px;
}

.organizer-section-heading h3 {
  margin-bottom: 6px;
  font-size: clamp(1.12rem, 1.45vw, 1.35rem);
}

.organizer-section-heading p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
}

.organizer-link-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 36px;
  max-width: 980px;
  margin: 0;
  padding-left: 0;
  color: var(--muted);
  list-style: none;
}

.organizer-link-list li {
  display: flex;
  gap: 5px;
  align-items: baseline;
  min-width: 0;
}

.organizer-link-list a {
  color: var(--text);
  font-weight: 780;
  text-decoration-color: color-mix(in srgb, var(--accent) 56%, transparent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.organizer-link-list span {
  color: var(--muted);
}

.contact-section {
  padding-bottom: 36px;
}

.contact-copy {
  max-width: 820px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.references-section {
  padding-top: 72px;
  padding-bottom: 72px;
}

.references-dropdown {
  max-width: 1020px;
}

.references-summary {
  display: inline-flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 0;
  color: var(--text);
  list-style: none;
  cursor: pointer;
}

.references-summary::-webkit-details-marker {
  display: none;
}

.references-summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 38%, transparent);
  outline-offset: 8px;
  border-radius: 8px;
}

.references-arrow {
  width: 0;
  height: 0;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  border-left: 13px solid var(--accent);
  transform: rotate(0deg);
  transition: transform 180ms ease;
}

.references-dropdown[open] .references-arrow {
  transform: rotate(90deg);
}

.references-title {
  font-size: clamp(1.7rem, 3.2vw, 3rem);
  font-weight: 780;
  line-height: 1.08;
}

.reference-list {
  display: grid;
  gap: 12px;
  max-width: 980px;
  margin: 28px 0 0;
  padding-left: 24px;
  color: var(--muted);
}

.reference-list li {
  padding-left: 6px;
}

.reference-title {
  color: var(--text);
  font-weight: 720;
}

.reference-list a {
  display: inline-flex;
  margin-left: 8px;
  color: var(--text);
  font-weight: 760;
  text-decoration-color: color-mix(in srgb, var(--accent) 56%, transparent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.footer {
  width: min(1480px, calc(100% - 48px));
  margin: 0 auto;
  padding: 34px 0 54px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer p {
  margin: 0;
}

/* Responsive containment and typography overrides. The markup stays unchanged; these
   rules keep wide research artifacts usable on phones without changing content. */
html,
body {
  max-width: 100%;
}

img,
video,
svg,
canvas {
  max-width: 100%;
}

h1 {
  font-size: 3.1rem;
}

h2 {
  font-size: 2.65rem;
}

.lede,
.subtitle {
  font-size: 1.2rem;
}

.quote,
.solver-learn-more p {
  font-size: 1.08rem;
}

.training-run-title,
.validation-block > h3 {
  font-size: 1.85rem;
}

.finals-video-row-label {
  font-size: 1.25rem;
}

.finals-video-section-title {
  font-size: 1.65rem;
}

.validation-copy h4,
.validation-subsection h4 {
  font-size: 1.32rem;
}

.dataset-feature-table-wrap,
.validation-table-wrap,
.visual-validation-table-wrap,
.model-table,
.math-block {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}

.dataset-feature-table-wrap,
.validation-table-wrap,
.visual-validation-table-wrap {
  width: 100%;
  contain: none;
}

.dataset-feature-table-wrap::after,
.validation-table-wrap::after,
.visual-validation-table-wrap::after,
.model-table::after {
  content: "";
  position: sticky;
  right: 0;
  display: block;
  width: 28px;
  min-height: 1px;
  margin-top: -1px;
  margin-left: auto;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--bg) 88%, transparent));
}

@media (max-width: 960px) {
  .side-rail {
    display: none;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    padding: 0 20px;
  }

  .nav {
    display: none;
  }

  .hero,
  .section-heading,
  .research-lead,
  .special-thanks-layout,
  .two-column,
  .training-strategy-layout,
  .le-data-layout,
  .critic-detour-card,
  .critic-spec-grid,
  .critic-performance-grid,
  .future-latent-layout,
  .resampler-layout,
  .future-predictor-layout,
  .validation-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 28px;
  }

  .hero-media {
    max-width: min(100%, 970px);
  }

  .portrait-videos {
    justify-content: start;
  }

  .portrait-video {
    width: min(100%, 478px);
    height: auto;
  }

  .timeline,
  .cards,
  .research-card-grid,
  .research-direction-grid,
  .research-vision-layout,
  .special-thanks-media-grid,
  .equation-grid,
  .future-equation-grid,
  .solver-detail-grid,
  .validation-results-table {
    min-width: 0;
  }

  .timeline,
  .cards,
  .research-card-grid,
  .research-direction-grid,
  .research-vision-layout,
  .research-direction-flowcharts,
  .equation-grid,
  .future-equation-grid,
  .solver-detail-grid,
  .finals-video-grid,
  .learning-grid,
  .proof-gap-grid,
  .asset-list {
    grid-template-columns: 1fr;
  }

  .validation-visual,
  .validation-flowchart {
    justify-self: stretch;
  }

  .critic-detour-card {
    justify-items: start;
  }

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

  .critic-mc-return-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .critic-modal-content .solver-section:has(.critic-figure-grid) {
    grid-template-columns: 1fr;
  }

  .critic-modal-content .solver-section:has(.critic-figure-grid) > h3,
  .critic-modal-content .solver-section:has(.critic-figure-grid) > p,
  .critic-modal-content .solver-section:has(.critic-figure-grid) > .math-block,
  .critic-modal-content .solver-section:has(.critic-figure-grid) > .critic-spec-grid,
  .critic-modal-content .solver-section:has(.critic-figure-grid) > .critic-figure-grid {
    grid-column: 1;
    grid-row: auto;
  }

  .critic-figure-grid {
    justify-items: start;
  }

  .timeline > a.timeline-card:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -16px;
    transform: translate(50%, 50%) rotate(90deg);
  }

  .model-table {
    overflow-x: auto;
  }

  .model-table [role="row"] {
    min-width: 760px;
  }

  .results-table [role="row"] {
    min-width: 940px;
  }

  .compact-results-table {
    min-width: 820px;
  }

  h1 {
    font-size: 2.9rem;
  }

  h2 {
    font-size: 2.15rem;
  }

  .lede,
  .subtitle {
    font-size: 1.08rem;
  }

  .quote,
  .solver-learn-more p {
    font-size: 1rem;
  }

  .training-run-title,
  .validation-block > h3 {
    font-size: 1.55rem;
  }

  .finals-video-section-title {
    font-size: 1.45rem;
  }
}

@media (max-width: 560px) {
  main,
  .footer {
    width: min(100% - 24px, 1180px);
  }

  .site-header {
    min-height: 62px;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    padding: 0 12px;
  }

  .brand {
    min-width: 0;
    font-size: 0.86rem;
    line-height: 1.2;
  }

  .hero {
    padding-top: 22px;
    gap: 24px;
  }

  h1 {
    font-size: 1.95rem;
    line-height: 1.07;
  }

  h2 {
    font-size: 1.68rem;
  }

  h3 {
    font-size: 1rem;
  }

  .lede,
  .subtitle {
    font-size: 0.98rem;
    line-height: 1.5;
  }

  .author {
    font-size: 0.98rem;
  }

  .actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .button,
  .theme-toggle {
    min-height: 38px;
    padding: 0 10px;
    font-size: 0.92rem;
  }

  .critic-detour-card {
    padding: 14px;
  }

  .critic-detour-card .button {
    width: 100%;
    white-space: normal;
    text-align: center;
  }

  .critic-placeholder-grid {
    grid-template-columns: 1fr;
  }

  .critic-mc-return-grid {
    grid-template-columns: 1fr;
  }

  .critic-spec-grid {
    gap: 8px;
  }

  .critic-modal .solver-modal__dialog {
    padding: 18px;
  }

  .section {
    padding: 48px 0;
  }

  .section-heading {
    gap: 12px;
    margin-bottom: 20px;
  }

  .image-lightbox {
    padding: 18px;
  }

  .solver-modal {
    padding: 18px;
  }

  .solver-modal__dialog {
    padding: 16px;
  }

  .parameter-grid,
  .training-strategy-layout--staged .training-config-stack,
  .solver-parameter-list {
    grid-template-columns: 1fr;
  }

  .image-lightbox__dialog {
    padding: 10px;
  }

  .image-lightbox__close {
    top: 10px;
    right: 10px;
  }

  .portrait-videos {
    display: flex;
    grid-template-columns: none;
    gap: 12px;
    justify-content: start;
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
  }

  .hero-media {
    max-width: 100%;
    min-width: 0;
  }

  .portrait-video-card {
    flex: 0 0 min(78vw, 310px);
    scroll-snap-align: start;
  }

  .portrait-video {
    width: 100%;
    height: auto;
  }

  .video-note {
    text-align: left;
  }

  .timeline > a.timeline-card {
    min-height: auto;
  }

  .dataset-feature-table {
    min-width: 980px;
  }

  .compact-results-table {
    min-width: 780px;
  }

  .cumulative-results-table {
    min-width: 940px;
  }

  .validation-results-table {
    min-width: 620px;
  }

  .visual-validation-table td:nth-child(2),
  .validation-video {
    width: min(760px, 78vw);
  }

  .finals-video-grid {
    grid-template-columns: 1fr;
  }

  .organizer-link-list {
    grid-template-columns: 1fr;
  }

  .finals-video-card video,
  .finals-video-placeholder div {
    aspect-ratio: 16 / 11;
  }

  .solver-modal__close {
    position: static;
    float: none;
    width: 100%;
    justify-content: center;
    margin: 0 0 12px;
  }

  .theme-toggle {
    width: 70px;
    min-width: 70px;
    min-height: 38px;
    padding: 0;
  }

  .theme-toggle__track {
    min-height: 38px;
  }

  .theme-toggle__icon {
    height: 30px;
    font-size: 0.95rem;
  }

  .theme-toggle__thumb {
    width: 30px;
    height: 30px;
  }

  html[data-theme="dark"] .theme-toggle__thumb {
    transform: translateX(34px);
  }
}