@font-face {
  font-family: "Linux Biolinum";
  src: url("assets/fonts/linux-biolinum-regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 300 500;
  font-display: swap;
}

@font-face {
  font-family: "Linux Biolinum";
  src: url("assets/fonts/linux-biolinum-bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600 900;
  font-display: swap;
}

:root {
  --ink: #10120f;
  --paper: #f7f8f4;
  --white: #ffffff;
  --fog: #e9ede8;
  --line: #c9cec8;
  --muted: #5e655f;
  --coral: #ff604c;
  --mint: #65d19b;
  --yellow: #f0d257;
  --teal: #168d80;
  --nav-height: 58px;
  --content: 1240px;
  --copy: 820px;
  --font-body: "Linux Biolinum", sans-serif;
  --font-display: "Linux Biolinum", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

section[id] {
  scroll-margin-top: 10px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

body,
button,
a {
  letter-spacing: 0;
}

img,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
video:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 3px;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 28px;
  color: var(--white);
  background: var(--ink);
  border-bottom: 1px solid #2b2f2b;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  gap: 9px;
  font-size: 15px;
  font-family: var(--font-display);
  font-weight: 750;
  line-height: 1;
}

.wordmark-dot {
  width: 11px;
  height: 11px;
  flex: 0 0 11px;
  background: var(--mint);
  border: 2px solid var(--white);
  border-radius: 50%;
  box-shadow: 6px 0 0 -3px var(--coral), -4px 5px 0 -3px var(--yellow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
}

.nav-links a {
  color: #bfc5bf;
  transition: color 160ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

.nav-paper {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
}

.nav-paper svg {
  width: 17px;
  height: 17px;
}

.hero {
  position: relative;
  height: calc(88svh - var(--nav-height));
  min-height: 500px;
  max-height: 760px;
  overflow: hidden;
  isolation: isolate;
  background: var(--white);
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(247, 248, 244, 0.28);
  content: "";
  pointer-events: none;
}

.hero-video {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  filter: blur(4px);
  transform: scale(1.015);
}

.hero-copy {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding-top: 35px;
  text-align: center;
  text-shadow: 0 1px 10px rgba(255, 255, 255, 0.98);
}

.venue,
.section-index,
.application-number {
  margin: 0;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0;
}

.venue,
.application-number {
  text-transform: uppercase;
}

.venue {
  display: inline-block;
  padding: 5px 8px;
  color: var(--white);
  background: var(--ink);
  border-radius: 3px;
  text-shadow: none;
}

.hero h1 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 78px;
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 920px;
  margin: 9px auto 12px;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.22;
}

.mobile-break {
  display: none;
}

.authors {
  max-width: 1120px;
  margin: 0 auto;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
}

.authors a {
  display: inline;
  white-space: nowrap;
}

.author-line {
  display: block;
  text-align: center;
}

.author-line a:not(:last-child)::after,
.authors-short a::after {
  content: ", ";
  color: var(--muted);
}

.authors a:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.authors a {
  color: #1687c7;
}

.authors sup {
  font-size: 10px;
}

.authors-short {
  display: none;
}

.affiliations {
  margin: 4px auto 0;
  max-width: 1160px;
  color: #393d39;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.4;
}

.affiliation-line span {
  white-space: nowrap;
}

.contribution-line {
  margin-top: 1px;
}

.hero-actions,
.citation-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  text-shadow: none;
}

.button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 4px;
  font: 700 13px/1 var(--font-body);
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button svg {
  width: 17px;
  height: 17px;
  stroke-width: 2;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--white);
  background: var(--ink);
  border-color: var(--ink);
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--ink);
}

.button-disabled {
  color: #777d77;
  background: #e8ebe7;
  border-color: #c6cbc5;
  cursor: not-allowed;
}

.scroll-cue {
  position: absolute;
  right: 24px;
  bottom: 20px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--ink);
  border-radius: 50%;
}

.scroll-cue svg {
  width: 18px;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  color: var(--white);
  background: var(--ink);
  border-top: 1px solid #262a26;
}

.signal-item {
  min-height: 126px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 18px 30px;
  border-right: 1px solid #333733;
}

.signal-item:last-child {
  border-right: 0;
}

.signal-item strong {
  color: var(--white);
  font-family: var(--font-display);
  font-size: 39px;
  font-weight: 700;
  line-height: 1;
}

.signal-item span {
  margin-top: 7px;
  color: #b8beb8;
  font-size: 12px;
  text-transform: uppercase;
}

.signal-item.accent-coral strong {
  color: var(--coral);
}

.signal-item.accent-mint strong {
  color: var(--mint);
}

.signal-item.accent-yellow strong {
  color: var(--yellow);
}

.section {
  padding: 112px 32px;
}

.content-width {
  width: min(var(--content), 100%);
  margin: 0 auto;
}

.section-heading {
  margin-bottom: 52px;
}

.section-heading.centered {
  max-width: 900px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-index {
  display: block;
  margin-bottom: 17px;
  color: var(--teal);
  font-family: var(--font-body);
  text-transform: none;
}

.section-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 55px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0;
}

.split-heading {
  display: grid;
  grid-template-columns: 180px minmax(0, 1.45fr) minmax(260px, 0.75fr);
  align-items: end;
  gap: 34px;
}

.split-heading .section-index {
  align-self: start;
  margin-top: 8px;
}

.split-heading p {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.abstract-section {
  background: var(--paper);
}

.abstract-copy {
  max-width: var(--copy);
  margin: 0 auto 62px;
  color: #343934;
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.82;
}

.abstract-copy .lead {
  margin-top: 0;
  color: var(--ink);
  font-size: 25px;
  line-height: 1.52;
}

.paper-figure {
  width: min(var(--content), 100%);
  margin: 0 auto;
}

.paper-figure img {
  width: 100%;
  height: auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.paper-figure figcaption,
.baseline-figure figcaption {
  max-width: 900px;
  margin: 13px auto 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
  text-align: center;
}

.method-section {
  background: var(--fog);
}

.video-section {
  color: var(--white);
  background: var(--ink);
}

.project-video,
.chapter-video,
.application-video {
  margin: 0;
  overflow: hidden;
  border: 1px solid #404540;
  border-radius: 6px;
  background: #050806;
}

.project-video video,
.chapter-video video,
.application-video video {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.project-video figcaption {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 16px;
  color: #b8beb8;
  border-top: 1px solid #404540;
  font-size: 11px;
  text-transform: uppercase;
}

.film-label {
  display: grid;
  grid-template-columns: minmax(180px, 0.4fr) minmax(0, 1fr);
  gap: 28px;
  margin: 10px 0 28px;
  padding-top: 20px;
  border-top: 1px solid #404540;
}

.film-label span {
  color: var(--mint);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.film-label p {
  max-width: 620px;
  margin: 0;
  color: #b8beb8;
  font-size: 13px;
}

.demo-heading {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  align-items: start;
  gap: 34px;
  margin-bottom: 42px;
}

.demo-heading .section-index {
  margin: 8px 0 0;
}

.demo-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 55px;
  font-weight: 700;
  line-height: 1.1;
}

.architecture-figure {
  margin-top: 0;
}

.chapter-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.method-chapter-pair {
  margin-top: 72px;
}

.chapter-panel {
  min-width: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.chapter-panel-copy {
  min-height: 184px;
  padding: 23px 24px 25px;
}

.chapter-panel-copy .section-index,
.chapter-panel-copy .application-number {
  display: block;
  margin: 0 0 13px;
}

.chapter-panel-copy h3,
.feature-row-copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 29px;
  font-weight: 700;
  line-height: 1.12;
}

.chapter-panel-copy p,
.feature-row-copy p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.chapter-panel video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #050806;
  border-top: 1px solid var(--line);
}

.subsection-heading {
  display: grid;
  grid-template-columns: 180px minmax(0, 1.1fr) minmax(260px, 0.9fr);
  align-items: end;
  gap: 34px;
  margin: 92px 0 48px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.subsection-heading .section-index {
  align-self: start;
  margin: 7px 0 0;
}

.subsection-heading h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 43px;
  font-weight: 700;
  line-height: 1.08;
}

.subsection-heading p {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 52px;
}

.method-video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 72px;
}

.method-video-card {
  min-width: 0;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
  border: 1px solid #303530;
  border-radius: 6px;
}

.method-video-card video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border-bottom: 1px solid #303530;
}

.method-video-card > div {
  padding: 20px 22px 23px;
}

.method-video-card span {
  color: var(--mint);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
}

.method-video-card h3 {
  margin: 7px 0 6px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.method-video-card p {
  margin: 0;
  color: #b8beb8;
  font-size: 12px;
}

.method-steps article {
  padding-top: 20px;
  border-top: 2px solid var(--ink);
}

.method-steps article:nth-child(2) {
  border-color: var(--coral);
}

.method-steps article:nth-child(3) {
  border-color: var(--teal);
}

.method-steps span {
  color: var(--muted);
  font: 800 11px/1 var(--font-body);
}

.method-steps h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.method-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.worlds-overview,
.comparison-section,
.citation-section {
  color: var(--white);
  background: var(--ink);
}

.light-heading .section-index {
  color: var(--mint);
}

.light-heading p,
.worlds-overview .split-heading p,
.comparison-section .split-heading p {
  color: #b8beb8;
}

.worlds-figure img {
  border-color: #404540;
}

.chapter-video {
  margin-bottom: 52px;
  border-color: var(--line);
}

.chapter-video-dark {
  border-color: #404540;
}

.dynamics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.video-tile {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.tile-video-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  aspect-ratio: 16 / 9;
  background: var(--white);
}

.tile-video-pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tile-video-grid video {
  min-width: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--white);
}

.split-comparison {
  aspect-ratio: 12 / 5;
}

.split-comparison::after {
  position: absolute;
  inset: 0 auto 0 50%;
  width: 1px;
  background: rgba(255, 255, 255, 0.85);
  content: "";
  pointer-events: none;
}

.split-panel-labels {
  position: absolute;
  inset: 8px 9px auto;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  pointer-events: none;
}

.split-panel-labels span {
  justify-self: start;
  padding: 3px 6px;
  color: var(--white);
  background: rgba(17, 20, 17, 0.78);
  border-radius: 3px;
  font-size: 8px;
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
}

.split-panel-labels span:last-child {
  justify-self: end;
}

.video-tile figcaption {
  padding: 12px 14px 13px;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.25;
}

.video-tile-dark {
  background: #171a17;
  border-color: #404540;
}

.video-tile-dark video {
  background: var(--white);
}

.video-tile-dark figcaption {
  color: var(--white);
  border-color: #404540;
}

.domain-section {
  background: var(--white);
}

.compact-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
}

.compact-heading .section-index {
  order: 2;
  margin: 0 0 8px;
}

.compact-heading h2 {
  font-size: 44px;
}

.media-grid {
  display: grid;
  gap: 18px;
}

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

.domain-grid .media-frame {
  aspect-ratio: 4 / 3;
}

.media-card {
  min-width: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.media-frame {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.media-frame.landscape {
  aspect-ratio: 16 / 10;
}

.media-frame.square {
  aspect-ratio: 1 / 1;
}

.media-frame.portrait {
  aspect-ratio: 4 / 5;
}

.media-frame video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.media-caption {
  display: grid;
  grid-template-columns: 28px 1fr;
  padding: 15px 16px 17px;
}

.media-caption span {
  grid-row: 1 / span 2;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.media-caption h3,
.media-caption p,
.media-card figcaption {
  margin: 0;
}

.media-caption h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.25;
}

.media-caption p {
  margin-top: 3px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

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

.comparison-pane {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid #454a45;
  border-radius: 6px;
}

.comparison-pane video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.comparison-pane figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 8px;
  color: var(--white);
  background: var(--ink);
  border-radius: 3px;
  font-size: 11px;
  font-weight: 750;
  text-transform: uppercase;
}

.comparison-pane figcaption span {
  width: 7px;
  height: 7px;
  background: var(--coral);
  border-radius: 50%;
}

.comparison-pane + .comparison-pane figcaption span {
  background: var(--mint);
}

.baseline-figure {
  max-width: 780px;
  margin-top: 72px;
}

.baseline-figure img {
  border-color: #454a45;
}

.baseline-figure figcaption {
  color: #b8beb8;
}

.generalization-section {
  color: var(--white);
  background: var(--ink);
}

.generalization-section .split-heading p,
.generalization-section .feature-row-copy p {
  color: #b8beb8;
}

.generalization-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.generalization-grid {
  grid-template-rows: auto auto;
}

.generalization-copy,
.generalization-video {
  min-width: 0;
  overflow: hidden;
  background: #141714;
  border: 1px solid #3a403a;
  border-radius: 6px;
}

.generalization-copy {
  min-height: 116px;
  padding: 18px 18px 20px;
}

.generalization-properties {
  grid-column: 1;
  grid-row: 1;
}

.generalization-boundary {
  grid-column: 2;
  grid-row: 1;
}

.generalization-initial {
  grid-column: 3 / span 2;
  grid-row: 1;
}

.generalization-properties-video {
  grid-column: 1;
  grid-row: 2;
}

.generalization-boundary-video {
  grid-column: 2;
  grid-row: 2;
}

.generalization-rotation-video {
  grid-column: 3;
  grid-row: 2;
}

.generalization-geometry-video {
  grid-column: 4;
  grid-row: 2;
}

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

.generalization-copy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.generalization-copy p {
  margin: 7px 0 0;
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.4;
  font-family: var(--font-body);
  text-transform: none;
}

.generalization-video {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  aspect-ratio: 21 / 19;
}

.generalization-video video {
  min-width: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #0e0f0e;
  border-bottom: 1px solid #3a403a;
}

.generalization-video video:last-child {
  border-bottom: 0;
}

.rotation-video-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(3, minmax(0, 1fr));
}

.rotation-video-grid video {
  border-right: 1px solid #3a403a;
}

.rotation-video-grid video:nth-child(2n) {
  border-right: 0;
}

.actuation-section,
.generalization-ability {
  margin-top: 72px;
  padding-top: 72px;
  border-top: 1px solid #3a403a;
}

.actuation-copy {
  width: calc((100% - 42px) / 4);
  min-width: 250px;
  margin-bottom: 14px;
}

.generalization-ability .feature-row-copy {
  max-width: 600px;
  margin-bottom: 34px;
}

.actuation-visual,
.ability-demo-visual {
  min-width: 0;
  overflow: hidden;
  background: #0e0f0e;
  border: 1px solid #3a403a;
  border-radius: 6px;
}

.actuation-section,
.actuation-section .generalization-copy {
  font-family: var(--font-body);
}

.actuation-visual video,
.ability-demo-visual video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #0e0f0e;
}

.ability-matrix-scroll {
  min-width: 0;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}

.ability-matrix {
  display: grid;
  grid-template-columns: 112px repeat(4, minmax(0, 1fr));
  width: 100%;
  min-width: 0;
  overflow: hidden;
  background: #141714;
  border: 1px solid #3a403a;
  border-radius: 6px;
}

.ability-corner {
  grid-column: 1;
  grid-row: 1;
  border-bottom: 1px solid #3a403a;
}

.ability-group {
  min-width: 0;
  min-height: 82px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 13px 16px;
  text-align: center;
  border-bottom: 1px solid #3a403a;
}

.ability-training-group {
  grid-column: 2 / span 2;
  grid-row: 1;
}

.ability-test-group {
  grid-column: 4 / span 2;
  grid-row: 1;
  border-left: 3px solid #747c74;
}

.ability-group strong {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.15;
}

.ability-group span {
  margin-top: 5px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.3;
}

.ability-row-label {
  min-width: 0;
  display: grid;
  place-items: center;
  min-height: 36px;
  padding: 7px 8px;
  border-bottom: 1px solid #3a403a;
  font-size: 10px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  font-family: var(--font-body);
  text-transform: none;
}

.ability-row-label {
  align-self: stretch;
  color: var(--white);
  background: #141714;
  border-right: 1px solid #3a403a;
}

.ability-row-ours {
  color: var(--teal);
}

.ability-video {
  position: relative;
  min-width: 0;
  overflow: hidden;
  aspect-ratio: 1;
  background: #0e0f0e;
  border-right: 1px solid #3a403a;
  border-bottom: 1px solid #3a403a;
}

.ability-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ability-media-label {
  position: absolute;
  top: 9px;
  left: 9px;
  z-index: 1;
  padding: 4px 7px;
  color: var(--white);
  background: rgba(17, 20, 17, 0.78);
  border-radius: 3px;
  font-size: 9px;
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
  pointer-events: none;
}

.ability-test-start {
  border-left: 3px solid #747c74;
}

.feature-row {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  align-items: start;
  gap: 36px;
  margin-top: 72px;
  padding-top: 72px;
  border-top: 1px solid var(--line);
}

.stable-world-row {
  margin-top: 72px;
  padding-top: 72px;
  border-top: 1px solid #3a403a;
}

.stable-world-row .feature-row-copy {
  max-width: 600px;
  margin-bottom: 34px;
}

.feature-row-copy .section-index {
  margin-bottom: 14px;
}

.feature-row .application-video {
  margin: 0;
}

.stable-matrix-scroll {
  min-width: 0;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}

.stable-matrix {
  width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 7px;
}

.stable-method {
  min-width: 0;
  min-height: 66px;
  padding: 10px 9px 11px;
  text-align: center;
  background: #171a17;
  border-top: 3px solid #555c55;
}

.stable-method strong,
.stable-method span {
  display: block;
}

.stable-method strong {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
}

.stable-method span {
  margin-top: 4px;
  color: #aeb5ae;
  font-size: 8px;
  line-height: 1.3;
}

.stable-method-ours {
  border-color: var(--teal);
}

.stable-method-ours strong {
  color: var(--teal);
}

.stable-cell {
  position: relative;
  min-width: 0;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #0e0f0e;
  border: 1px solid #3a403a;
  border-radius: 4px;
}

.stable-cell video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stable-cell[data-row-label]::before {
  content: attr(data-row-label);
  position: absolute;
  z-index: 2;
  top: 6px;
  left: 6px;
  padding: 3px 5px;
  color: var(--white);
  background: rgba(16, 18, 15, 0.82);
  border-radius: 2px;
  font-size: 8px;
  font-weight: 800;
  line-height: 1;
  pointer-events: none;
}

.stable-cell-ours {
  border-color: var(--teal);
}

.generalization-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 52px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.generalization-stats div {
  min-width: 0;
  padding: 24px;
  background: var(--white);
}

.generalization-stats strong {
  display: block;
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 35px;
  font-weight: 700;
  line-height: 1;
}

.generalization-stats span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.reel {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.reel .media-frame {
  aspect-ratio: 1 / 1;
}

.reel .media-caption {
  display: block;
}

.reel .media-caption h3 {
  font-size: 17px;
}

.local-global-figure {
  max-width: 900px;
  margin-top: 80px;
}

.analysis-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  align-items: start;
  gap: 24px;
  margin-top: 72px;
}

.analysis-grid .paper-figure {
  width: 100%;
}

.applications-section {
  background: var(--paper);
}

.application-pair {
  margin-top: 64px;
}

.possibilities-section,
.finale-section {
  color: var(--white);
  background: var(--ink);
}

.possibilities-section .split-heading p,
.finale-section .split-heading p {
  color: #b8beb8;
}

.molecular-section {
  background: var(--fog);
}

.frontier-section {
  background: var(--fog);
}

.frontier-pair {
  align-items: stretch;
}

.frontier-panel .chapter-panel-copy {
  min-height: 218px;
}

.molecular-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  align-items: start;
  gap: 24px;
  margin-top: 56px;
}

.molecular-layout .paper-figure,
.molecular-layout .media-card {
  width: 100%;
}

.real-world-section {
  background: var(--paper);
}

.real-world-section .application-block {
  padding-top: 0;
  border-top: 0;
}

.real-detail-grid {
  margin-top: 30px;
}

.finale-section .chapter-video {
  margin-bottom: 0;
}

.application-heading p {
  max-width: 620px;
  margin: 18px auto 0;
  color: var(--muted);
}

.application-block {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 36px;
  padding: 74px 0;
  border-top: 1px solid var(--line);
}

.application-block:last-child {
  padding-bottom: 0;
}

.application-copy {
  align-self: start;
}

.application-number {
  color: var(--teal);
}

.application-copy h3 {
  margin: 12px 0 11px;
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.08;
}

.application-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.application-block > .paper-figure {
  width: 100%;
}

.application-video {
  width: 100%;
  border-color: var(--line);
}

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

.paired-small .media-card figcaption,
.real-grid .media-card figcaption {
  padding: 11px 13px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.real-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: start;
  gap: 14px;
}

.real-grid .media-frame {
  aspect-ratio: 4 / 3;
}

.real-grid .media-card:last-child {
  max-width: 100%;
}

.citation-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: 72px;
  align-items: start;
}

.citation-section .section-heading {
  margin: 0;
}

.citation-section .section-heading h2 {
  font-size: 49px;
}

.citation-actions {
  justify-content: flex-start;
  margin-top: 28px;
}

.button-light {
  color: var(--ink);
  background: var(--white);
}

.button-outline {
  color: var(--white);
  background: transparent;
  border-color: #697069;
}

#bibtex {
  min-width: 0;
  margin: 0;
  padding: 25px;
  overflow-x: auto;
  color: #dce2dc;
  background: #1c201c;
  border: 1px solid #404540;
  border-radius: 6px;
  font: 13px/1.7 var(--font-body);
  white-space: pre;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  min-height: 100px;
  padding: 22px 32px;
  color: #b8beb8;
  background: var(--ink);
  border-top: 1px solid #303430;
  font-size: 11px;
}

.footer-mark {
  color: var(--white);
}

.site-footer p {
  margin: 0;
}

.footer-credit {
  justify-self: end;
}

.reveal.is-ready {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 500ms ease, transform 500ms ease;
}

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

@media (max-width: 1080px) {
  .section {
    padding: 92px 26px;
  }

  .section-heading h2 {
    font-size: 47px;
  }

  .split-heading {
    grid-template-columns: 130px minmax(0, 1.35fr) minmax(240px, 0.75fr);
    gap: 24px;
  }

  .demo-heading {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 24px;
  }

  .subsection-heading {
    grid-template-columns: 130px minmax(0, 1.25fr) minmax(240px, 0.75fr);
    gap: 24px;
  }

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

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

  .generalization-properties,
  .generalization-boundary {
    grid-row: 1;
  }

  .generalization-initial {
    grid-column: 1 / span 2;
    grid-row: 3;
  }

  .generalization-properties-video {
    grid-column: 1;
    grid-row: 2;
  }

  .generalization-boundary-video {
    grid-column: 2;
    grid-row: 2;
  }

  .generalization-rotation-video {
    grid-column: 1;
    grid-row: 4;
  }

  .generalization-geometry-video {
    grid-column: 2;
    grid-row: 4;
  }

  .generalization-copy {
    min-height: 112px;
  }

  .actuation-copy {
    width: calc((100% - 14px) / 2);
  }

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

  .application-block {
    grid-template-columns: 220px minmax(0, 1fr);
  }
}

@media (max-width: 800px) {
  .site-nav {
    grid-template-columns: 1fr auto;
    padding: 0 18px;
  }

  .stable-matrix {
    width: 1080px;
    min-width: 1080px;
  }

  .ability-matrix {
    width: 1060px;
    min-width: 1060px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 520px;
  }

  .hero-copy {
    width: min(680px, calc(100% - 28px));
    padding-top: 26px;
  }

  .hero h1 {
    font-size: 58px;
  }

  .hero-subtitle {
    max-width: 620px;
    font-size: 22px;
  }

  .authors-full {
    display: none;
  }

  .affiliations {
    max-width: 700px;
    font-size: 11px;
  }

  .authors-short {
    display: block;
    font-size: 13px;
  }

  .signal-item {
    padding: 16px 20px;
  }

  .split-heading {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .demo-heading {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .demo-heading .section-index {
    margin: 0;
  }

  .subsection-heading {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .subsection-heading .section-index {
    margin: 0;
  }

  .molecular-layout {
    grid-template-columns: 1fr;
  }

  .split-heading .section-index {
    margin: 0;
  }

  .method-steps {
    grid-template-columns: 1fr;
  }

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

  .chapter-pair,
  .feature-row {
    grid-template-columns: 1fr;
  }

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

  .frontier-panel .chapter-panel-copy {
    min-height: 0;
  }

  .feature-row {
    gap: 28px;
  }

  .chapter-panel-copy {
    min-height: 0;
  }

  .generalization-stats {
    grid-template-columns: 1fr;
  }

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

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

  .application-block {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .paired-small {
    grid-column: 1;
  }

  .citation-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 10px;
    text-align: center;
  }

  .footer-mark,
  .footer-credit {
    justify-self: center;
  }
}

@media (max-width: 560px) {
  :root {
    --nav-height: 54px;
  }

  .site-nav {
    height: var(--nav-height);
  }

  .nav-paper span {
    display: none;
  }

  .hero {
    height: calc(90svh - var(--nav-height));
    min-height: 500px;
    max-height: 650px;
  }

  .hero-video {
    object-position: 53% 70%;
  }

  .hero-copy {
    width: calc(100% - 24px);
    padding-top: 20px;
  }

  .venue {
    font-size: 10px;
  }

  .hero h1 {
    margin-top: 6px;
    font-size: 42px;
  }

  .hero-subtitle {
    width: 100%;
    margin-top: 7px;
    font-size: 19px;
    line-height: 1.2;
  }

  .mobile-break {
    display: inline;
  }

  .authors-short {
    max-width: 350px;
    font-size: 12px;
  }

  .affiliations {
    max-width: 360px;
    margin-top: 5px;
    font-size: 10px;
    line-height: 1.35;
  }

  .hero-actions {
    margin-top: 12px;
  }

  .hero-actions .button {
    min-height: 36px;
    padding: 7px 10px;
    font-size: 11px;
  }

  .scroll-cue {
    right: 14px;
    bottom: 14px;
  }

  .signal-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .signal-item {
    min-height: 100px;
    border-bottom: 1px solid #333733;
  }

  .signal-item:nth-child(2) {
    border-right: 0;
  }

  .signal-item strong {
    font-size: 31px;
  }

  .signal-item span {
    font-size: 9px;
  }

  .section {
    padding: 74px 16px;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .section-heading h2,
  .compact-heading h2,
  .citation-section .section-heading h2 {
    font-size: 36px;
  }

  .demo-heading h2 {
    font-size: 36px;
  }

  .project-video figcaption {
    display: block;
  }

  .project-video figcaption span {
    display: block;
  }

  .project-video figcaption span + span {
    margin-top: 4px;
  }

  .film-label {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .subsection-heading h3 {
    font-size: 32px;
  }

  .method-chapter-pair,
  .application-pair {
    margin-top: 48px;
  }

  .chapter-panel-copy {
    padding: 19px 18px 21px;
  }

  .chapter-panel-copy h3,
  .feature-row-copy h3 {
    font-size: 25px;
  }

  .feature-row {
    margin-top: 52px;
    padding-top: 52px;
  }

  .stable-world-row {
    margin-top: 52px;
    padding-top: 52px;
  }

  .generalization-ability {
    margin-top: 52px;
    padding-top: 52px;
  }

  .actuation-section {
    margin-top: 52px;
    padding-top: 52px;
  }

  .actuation-copy {
    width: 100%;
    min-width: 0;
  }

  .abstract-copy {
    font-size: 16px;
    line-height: 1.7;
  }

  .abstract-copy .lead {
    font-size: 21px;
  }

  .paper-figure figcaption {
    font-size: 10px;
  }

  .compact-heading {
    display: block;
  }

  .compact-heading .section-index {
    margin: 0 0 14px;
  }

  .domain-grid,
  .reel,
  .real-grid,
  .dynamics-grid,
  .generalization-grid {
    grid-template-columns: 1fr;
  }

  .generalization-copy {
    min-height: 0;
  }

  .generalization-initial,
  .generalization-properties,
  .generalization-boundary,
  .generalization-properties-video,
  .generalization-boundary-video,
  .generalization-rotation-video,
  .generalization-geometry-video {
    grid-column: 1;
  }

  .generalization-properties { grid-row: 1; }
  .generalization-properties-video { grid-row: 2; }
  .generalization-boundary { grid-row: 3; }
  .generalization-boundary-video { grid-row: 4; }
  .generalization-initial { grid-row: 5; }
  .generalization-rotation-video { grid-row: 6; }
  .generalization-geometry-video { grid-row: 7; }

  .initial-labels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .reel .media-frame,
  .real-grid .media-frame {
    aspect-ratio: 4 / 3;
  }

  .local-global-figure,
  .baseline-figure {
    margin-top: 55px;
  }

  .application-block {
    padding: 54px 0;
  }

  .application-copy h3 {
    font-size: 29px;
  }

  .paired-small {
    grid-template-columns: 1fr;
  }

  #bibtex {
    padding: 18px;
    font-size: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal.is-ready {
    opacity: 1;
    transform: none;
  }
}

/* Academic project-page theme. */
:root {
  --method-bg: #edf4fb;
  --method-accent: #315f8c;
  --generalization-bg: #edf7f1;
  --generalization-accent: #26704e;
  --rollout-bg: #fff6dc;
  --rollout-accent: #946700;
  --application-bg: #f6eff7;
  --application-accent: #76517d;
  --academic-line: rgba(31, 39, 33, 0.18);
}

html {
  scroll-padding-top: var(--nav-height);
}

section[id],
[id] {
  scroll-margin-top: 0;
}

body {
  background: var(--white);
}

.site-nav {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.97);
  border-bottom-color: var(--line);
  box-shadow: 0 3px 18px rgba(16, 18, 15, 0.05);
  backdrop-filter: blur(12px);
}

.wordmark {
  gap: 10px;
  font-size: 18px;
}

.wordmark-logo {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  object-fit: contain;
}

.nav-links a {
  color: var(--muted);
  font-weight: 700;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
}

.nav-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-resource {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 700;
}

.nav-resource svg {
  width: 17px;
  height: 17px;
}

.signal-strip {
  color: var(--ink);
  background: var(--white);
  border-top-color: var(--white);
  border-bottom: 1px solid var(--line);
}

.signal-item {
  border-right: 3px solid var(--white);
  transition: filter 160ms ease;
}

.signal-item:hover {
  filter: saturate(1.08) brightness(0.985);
}

.signal-item strong {
  font-size: 45px;
}

.signal-item span {
  color: currentColor;
  font-size: 18px;
  font-weight: 700;
  text-transform: none;
}

.signal-method {
  color: var(--method-accent);
  background: var(--method-bg);
}

.signal-generalization {
  color: var(--generalization-accent);
  background: var(--generalization-bg);
}

.signal-rollout {
  color: var(--rollout-accent);
  background: var(--rollout-bg);
}

.signal-application {
  color: var(--application-accent);
  background: var(--application-bg);
}

.signal-method strong,
.signal-generalization strong,
.signal-rollout strong,
.signal-application strong {
  color: currentColor;
}

.video-section {
  color: var(--ink);
  background: var(--white);
}

.project-video,
.project-video video {
  background: var(--white);
  border-color: var(--line);
}

.module-method,
.method-section {
  background: var(--method-bg);
}

.module-generalization,
.worlds-overview,
.generalization-section {
  color: var(--ink);
  background: var(--generalization-bg);
}

.module-rollout,
.rollout-section {
  color: var(--ink);
  background: var(--rollout-bg);
}

.module-application,
.applications-section,
.frontier-section {
  color: var(--ink);
  background: var(--application-bg);
}

.citation-section {
  color: var(--ink);
  background: var(--white);
}

.module-title {
  margin: 0 0 52px;
  font-family: var(--font-display);
  font-size: 58px;
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: 0;
  text-align: center;
}

.demo-title {
  color: var(--ink);
}

.module-heading {
  max-width: 1120px;
  margin: 0 auto 54px;
  text-align: center;
}

.module-heading .module-title {
  margin-bottom: 18px;
}

.module-subheading {
  max-width: 1040px;
  margin: 0 auto;
  text-align: center;
}

.module-subheading h3 {
  margin: 0;
  color: currentColor;
  font-family: var(--font-display);
  font-size: 31px;
  font-weight: 700;
  line-height: 1.15;
}

.module-subheading p {
  max-width: 1000px;
  margin: 12px auto 0;
  color: #465048;
  font-size: 17px;
  line-height: 1.62;
}

.module-intro {
  max-width: 1040px;
  margin: 0 auto;
  color: #465048;
  font-size: 18px;
  line-height: 1.65;
  text-align: center;
}

.module-caption {
  margin-top: 28px;
}

.module-method .module-title,
.module-method .module-card-title {
  color: var(--method-accent);
}

.module-method .module-subheading h3 {
  color: var(--method-accent);
}

.module-generalization .module-title,
.module-generalization .feature-heading h3 {
  color: var(--generalization-accent);
}

.module-generalization .module-subheading h3 {
  color: var(--generalization-accent);
}

.module-rollout .module-title {
  color: var(--rollout-accent);
}

.module-rollout .module-subheading h3 {
  color: var(--rollout-accent);
}

.module-application .module-title,
.module-application .module-card-title {
  color: var(--application-accent);
}

.module-application .module-subheading h3,
.module-application .submodule-title {
  color: var(--application-accent);
}

.architecture-figure figcaption {
  max-width: 1050px;
  margin-top: 20px;
  color: #465048;
  font-size: 17px;
  line-height: 1.62;
}

.architecture-figure {
  margin-top: 0;
}

.method-chapter-pair,
.application-pair,
.frontier-pair {
  margin-top: 64px;
}

.module-card {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.82);
  border-color: var(--academic-line);
  box-shadow: 0 8px 24px rgba(31, 39, 33, 0.04);
}

.module-card-title {
  min-height: 104px;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 24px 22px;
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
}

.module-card video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--white);
  border-top-color: var(--academic-line);
  border-bottom: 1px solid var(--academic-line);
}

.module-card-description {
  min-height: 118px;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 20px 28px 24px;
  color: #465048;
  font-size: 16px;
  line-height: 1.6;
  text-align: center;
}

.video-tile,
.generalization-copy,
.generalization-video,
.actuation-visual,
.ability-demo-visual {
  background: rgba(255, 255, 255, 0.85);
  border-color: var(--academic-line);
}

.video-tile figcaption {
  color: var(--ink);
  border-top-color: var(--academic-line);
  text-align: center;
}

.video-description {
  margin: 0;
  padding: 10px 14px 16px;
  color: #465048;
  font-size: 13px;
  line-height: 1.45;
  text-align: center;
}

.generalization-copy {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  text-align: center;
}

.generalization-copy h3 {
  color: var(--generalization-accent);
  font-size: 23px;
}

.generalization-copy p {
  color: var(--generalization-accent);
  text-align: center;
}

.generalization-video video {
  background: var(--white);
  border-color: var(--academic-line);
}

.actuation-section,
.generalization-ability {
  border-top-color: rgba(38, 112, 78, 0.25);
}

.feature-heading {
  max-width: 1000px;
  margin: 0 auto 30px;
  text-align: center;
}

.feature-heading h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  line-height: 1.1;
}

.feature-heading p {
  max-width: 900px;
  margin: 15px auto 0;
  color: #465048;
  font-size: 17px;
  line-height: 1.62;
}

.feature-description {
  max-width: 900px;
  margin: 24px auto 0;
  color: #465048;
  font-size: 17px;
  line-height: 1.62;
  text-align: center;
}

.generalization-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 72px;
}

.generalization-features .actuation-section,
.generalization-features .generalization-ability {
  min-width: 0;
  margin-top: 0;
  padding: 24px;
  border: 1px solid var(--academic-line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.72);
}

.generalization-features .feature-heading {
  margin-bottom: 18px;
}

.generalization-features .feature-heading h3 {
  color: var(--generalization-accent);
  font-size: 23px;
}

.generalization-features .actuation-visual,
.generalization-features .ability-demo-visual {
  border-color: var(--academic-line);
  border-radius: 4px;
}

.generalization-features .feature-description {
  margin-top: 16px;
  font-size: 14px;
}

.submodule-title {
  margin: 0 0 38px;
  color: var(--application-accent);
  font-family: var(--font-display);
  font-size: 39px;
  font-weight: 700;
  line-height: 1.1;
  text-align: center;
}

.beyond-training-title {
  margin: 0 0 38px;
  color: var(--generalization-accent);
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
}

.actuation-visual video,
.ability-demo-visual video {
  background: var(--white);
}

.stable-method {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.74);
  border-top-color: rgba(148, 103, 0, 0.28);
}

.stable-method span {
  color: var(--muted);
}

.stable-method-ours {
  border-color: var(--rollout-accent);
}

.stable-method-ours strong {
  color: var(--rollout-accent);
}

.stable-cell {
  background: var(--white);
  border-color: rgba(148, 103, 0, 0.22);
}

.stable-cell-ours {
  border-color: var(--rollout-accent);
}

.applications-section {
  padding-bottom: 72px;
}

.frontier-section {
  padding-top: 72px;
}

.citation-section .section-heading h2 {
  color: var(--ink);
}

.button-light {
  color: var(--white);
  background: var(--ink);
}

.button-outline {
  color: var(--ink);
  border-color: var(--line);
}

#bibtex {
  color: #263028;
  background: var(--paper);
  border-color: var(--line);
}

.site-footer {
  grid-template-columns: 1fr auto;
  color: var(--muted);
  background: var(--white);
  border-top-color: var(--line);
}

.footer-mark {
  color: var(--ink);
}

.site-footer p {
  justify-self: end;
}

@media (max-width: 900px) {
  :root {
    --nav-height: 96px;
  }

  .site-nav {
    height: auto;
    min-height: var(--nav-height);
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 8px 18px;
    padding: 10px 20px 0;
  }

  .wordmark {
    grid-column: 1;
    grid-row: 1;
  }

  .nav-actions {
    grid-column: 2;
    grid-row: 1;
  }

  .nav-links {
    grid-column: 1 / -1;
    grid-row: 2;
    display: flex;
    justify-content: space-between;
    gap: 22px;
    padding: 0 2px 10px;
    overflow-x: auto;
    white-space: nowrap;
  }

  .module-title {
    font-size: 48px;
  }

  .module-intro {
    font-size: 17px;
  }

  .module-card-title {
    font-size: 30px;
  }
}

@media (max-width: 600px) {
  :root {
    --nav-height: 94px;
  }

  .site-nav {
    gap: 7px 12px;
    padding-right: 15px;
    padding-left: 15px;
  }

  .wordmark {
    font-size: 16px;
  }

  .wordmark-logo {
    width: 25px;
    height: 25px;
    flex-basis: 25px;
  }

  .nav-actions {
    gap: 13px;
  }

  .nav-resource {
    gap: 5px;
    font-size: 12px;
  }

  .nav-resource svg {
    width: 15px;
    height: 15px;
  }

  .nav-links {
    gap: 16px;
    font-size: 12px;
  }

  .signal-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .signal-item {
    min-height: 102px;
    padding: 16px 20px;
    border-bottom: 3px solid var(--white);
  }

  .signal-item strong {
    font-size: 38px;
  }

  .section {
    padding: 74px 17px;
  }

  .module-title {
    margin-bottom: 38px;
    font-size: 39px;
  }

  .module-heading {
    margin-bottom: 40px;
  }

  .module-heading .module-title {
    margin-bottom: 16px;
  }

  .module-subheading h3 {
    font-size: 26px;
  }

  .module-subheading p {
    font-size: 15px;
  }

  .module-intro,
  .feature-heading p,
  .feature-description {
    font-size: 15px;
  }

  .feature-heading h3 {
    font-size: 32px;
  }

  .chapter-pair {
    grid-template-columns: 1fr;
  }

  .module-card-title {
    min-height: 82px;
    font-size: 27px;
  }

  .generalization-features {
    grid-template-columns: 1fr;
    margin-top: 48px;
  }

  .generalization-features .actuation-section,
  .generalization-features .generalization-ability {
    padding: 18px;
  }

  .submodule-title {
    margin-bottom: 30px;
    font-size: 32px;
  }

  .beyond-training-title {
    margin-bottom: 30px;
    font-size: 27px;
  }

  .module-card-description {
    min-height: 0;
    font-size: 15px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .site-footer p {
    justify-self: center;
  }
}

/* GIF-backed presentation media keeps the same geometry as the source clips. */
.auto-gif {
  display: block;
  max-width: 100%;
}

.hero-gif {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 60%;
  filter: blur(4px);
  transform: scale(1.015);
}

.tile-video-grid .auto-gif {
  min-width: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--white);
}

.generalization-video .auto-gif {
  min-width: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--white);
  border-bottom: 1px solid var(--academic-line);
}

.generalization-video .auto-gif:last-child {
  border-bottom: 0;
}

.actuation-visual .auto-gif,
.ability-demo-visual .auto-gif {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--white);
}

.stable-cell .auto-gif {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--white);
}

.module-card .auto-gif {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--white);
  border-top: 1px solid var(--academic-line);
  border-bottom: 1px solid var(--academic-line);
}

.signal-item {
  align-items: center;
  gap: 5px;
  text-align: center;
}

.signal-item .signal-label {
  margin: 0;
  color: currentColor;
  font-size: 23px;
  font-weight: 700;
  line-height: 1.12;
  text-transform: none;
}

.signal-item .signal-metric {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
  color: currentColor;
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
  text-transform: none;
}

.signal-item .signal-metric strong {
  color: currentColor;
  font-size: 40px;
  line-height: 1;
}

.signal-item .signal-metric > span {
  margin: 0;
  color: currentColor;
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
  text-transform: none;
}

@media (max-width: 600px) {
  .signal-item .signal-label {
    font-size: 18px;
  }

  .signal-item .signal-metric {
    font-size: 17px;
  }

  .signal-item .signal-metric strong {
    font-size: 34px;
  }

  .signal-item .signal-metric > span {
    font-size: 17px;
  }
}

.module-method .metric-emphasis {
  color: var(--method-accent);
}

.module-generalization .metric-emphasis {
  color: var(--generalization-accent);
}

.module-rollout .metric-emphasis {
  color: var(--rollout-accent);
}

.module-application .metric-emphasis {
  color: var(--application-accent);
}

.module-subheading .metric-explanation {
  max-width: none;
  min-height: 3.24em;
  margin-right: 0;
  margin-left: 0;
  text-align: left;
}

.nav-links {
  gap: 36px;
  white-space: nowrap;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.module-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.module-title-kicker {
  font-size: 0.52em;
  font-weight: 600;
  line-height: 1;
}

.module-title-main {
  font-size: 1em;
  line-height: 1;
}

.signal-item .signal-label {
  font-size: 16px;
  line-height: 1.1;
}

.signal-item .signal-metric {
  display: block;
  font-size: 0;
  line-height: 1;
}

.signal-item .signal-metric strong {
  font-size: 36px;
  line-height: 1.05;
}

.signal-item .signal-metric > span {
  display: none;
}

@media (min-width: 901px) and (max-width: 1120px) {
  .nav-links {
    gap: 18px;
    font-size: 12px;
  }
}

.abstract-section {
  color: var(--ink);
  background: var(--white);
}

.abstract-title {
  margin: 0 0 28px;
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.15;
  text-align: center;
}

.abstract-copy,
.module-caption,
.module-card-description,
.feature-description {
  color: #465048;
  font-size: 17px;
  line-height: 1.62;
  text-align: left;
}

.abstract-copy {
  max-width: 1040px;
  margin: 0 auto;
}

.module-card-description {
  width: 100%;
  place-items: start;
}

.video-section {
  padding-bottom: 56px;
}

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

@media (min-width: 901px) and (max-width: 1120px) {
  .site-nav {
    gap: 16px;
    padding-right: 20px;
    padding-left: 20px;
  }

  .nav-links {
    gap: 16px;
    font-size: 12px;
  }
}

.submodule-title {
  font-size: 34px;
}

.module-application .module-card-title {
  font-size: 23px;
  line-height: 1.2;
}

.module-method .module-card-title {
  min-height: 70px;
  padding: 18px 22px;
  font-size: 23px;
  line-height: 1.2;
}

.worlds-overview .dynamics-grid {
  gap: 14px;
}

.worlds-overview .video-tile figcaption {
  padding: 10px 14px 11px;
}

.generalization-section .beyond-training-title {
  margin-bottom: 24px;
}

.generalization-section .generalization-copy {
  min-height: 88px;
  padding: 12px 18px 14px;
}

.generalization-section .generalization-initial .initial-labels {
  margin-top: 16px;
}

.generalization-section {
  padding-top: 32px;
}

.worlds-overview {
  padding-bottom: 36px;
}

.applications-section {
  padding-bottom: 28px;
}

.frontier-section {
  padding-top: 24px;
}

@media (max-width: 600px) {
  .generalization-section {
    padding-top: 24px;
  }

  .worlds-overview {
    padding-bottom: 24px;
  }

  .applications-section {
    padding-bottom: 22px;
  }

  .frontier-section {
    padding-top: 18px;
  }

  .submodule-title {
    font-size: 27px;
  }

  .module-application .module-card-title {
    font-size: 23px;
  }

  .module-subheading .metric-explanation {
    min-height: 0;
  }

  .nav-links {
    gap: 24px;
  }

  .signal-item .signal-label {
    font-size: 15px;
  }

  .signal-item .signal-metric strong {
    font-size: 30px;
  }

  .video-section {
    padding-bottom: 38px;
  }

  .abstract-section {
    padding-top: 38px;
  }

  .abstract-title {
    margin-bottom: 22px;
    font-size: 27px;
  }

  .abstract-copy,
  .module-caption,
  .module-card-description,
  .feature-description {
    font-size: 15px;
  }

  .module-method .module-card-title {
    min-height: 62px;
    padding: 14px 16px;
    font-size: 23px;
  }

  .generalization-section .beyond-training-title {
    margin-bottom: 20px;
  }

  .generalization-section .generalization-copy {
    min-height: 0;
    padding: 12px 14px;
  }

  .generalization-section .generalization-initial .initial-labels {
    margin-top: 14px;
  }
}