:root {
  --ink: #202124;
  --muted: #5f6368;
  --line: #dfe3e7;
  --soft: #f5f6f7;
  --accent: #397332;
  --accent-soft: #eef5ec;
  --content: 1120px;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: #245f94;
}

a:hover {
  color: #173e61;
}

.paper-hero .hero-body {
  padding: 4.8rem 1.5rem 2.6rem;
}

.publication-title {
  color: var(--ink);
  font-size: clamp(2.15rem, 4.15vw, 3.45rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin: 0 auto 1.7rem !important;
  max-width: 1100px;
}

.publication-acronym {
  color: var(--accent);
  font-weight: 750;
}

.publication-authors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.55rem;
  justify-content: center;
  margin: 0 auto 0.8rem;
  max-width: 980px;
  font-size: 1.16rem;
}

.publication-authors a {
  color: #27679b;
  text-decoration: underline;
  text-decoration-color: rgba(39, 103, 155, 0.35);
  text-underline-offset: 0.16em;
}

.publication-authors a:hover {
  text-decoration-color: currentColor;
}

.publication-authors sup,
.publication-affiliations sup {
  font-size: 0.68em;
  margin-left: 0.08em;
}

.publication-affiliations {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.98rem;
  gap: 0.1rem 1rem;
  justify-content: center;
}

.publication-affiliations .corresponding {
  flex-basis: 100%;
  font-size: 0.9rem;
  margin-top: 0.12rem;
}

.publication-links {
  gap: 0.65rem;
  margin-top: 1.65rem;
}

.publication-links .button {
  margin: 0 !important;
}

.publication-link {
  align-items: center;
  background: #292a2d;
  border: 1px solid #292a2d;
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  font-size: 0.98rem;
  font-weight: 600;
  height: 2.8rem;
  padding: 0 1.15rem;
  transition: background-color 150ms ease, border-color 150ms ease, transform 150ms ease;
}

.publication-link:hover,
.publication-link:focus {
  background: #111214;
  border-color: #111214;
  color: #fff;
  transform: translateY(-1px);
}

.button-icon {
  display: inline-flex;
  height: 1.15rem;
  margin-right: 0.48rem;
  width: 1.15rem;
}

.button-icon svg {
  fill: none;
  height: 100%;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
  width: 100%;
}

.button-icon-text {
  align-items: center;
  font-size: 0.68rem;
  font-weight: 800;
  justify-content: center;
  letter-spacing: -0.03em;
}

.section {
  padding: 4rem 1.5rem;
}

.teaser-section {
  padding-top: 1.3rem;
}

.alt-section,
.video-section {
  background: var(--soft);
}

.section-heading {
  margin: 0 auto 2rem;
  max-width: 860px;
  text-align: center;
}

.section-heading .title {
  color: var(--ink);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.2;
  margin-bottom: 0.55rem;
}

.section-heading p {
  color: var(--muted);
  font-size: 1.02rem;
}

.paper-figure {
  margin: 0 auto;
  max-width: var(--content);
  text-align: center;
}

.paper-figure img {
  display: block;
  height: auto;
  margin: 0 auto;
  width: 100%;
}

.figure-link {
  display: block;
}

.figure-link img {
  cursor: zoom-in;
}

.figure-link:focus-visible {
  outline: 3px solid #245f94;
  outline-offset: 4px;
}

.paper-figure figcaption {
  color: #4d5156;
  font-size: 0.93rem;
  line-height: 1.55;
  margin: 1.05rem auto 0;
  max-width: 980px;
  text-align: left;
}

.teaser-figure {
  max-width: 1280px;
}

.teaser-figure figcaption {
  font-size: 0.98rem;
  text-align: center;
}

.study-scale {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 2.3rem auto 0;
  max-width: 860px;
  padding: 1.15rem 0;
}

.study-scale div {
  align-items: baseline;
  display: flex;
  gap: 0.48rem;
  justify-content: center;
}

.study-scale div + div {
  border-left: 1px solid var(--line);
}

.study-scale strong {
  color: var(--accent);
  font-size: 1.7rem;
  line-height: 1;
}

.study-scale span {
  color: var(--muted);
  font-size: 0.92rem;
}

.video-showcase {
  margin: 0 auto;
  max-width: 1320px;
}

.video-task-row + .video-task-row {
  border-top: 1px solid var(--line);
  margin-top: 2.25rem;
  padding-top: 2rem;
}

.video-task-header {
  margin-bottom: 0.85rem;
}

.video-task-title {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
}

.video-task-title .title {
  color: var(--ink);
  font-size: 1.18rem;
  font-weight: 650;
  letter-spacing: -0.012em;
  margin: 0 !important;
}

.task-type {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.video-task-header p {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 0.1rem;
}

.video-task-grid {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.video-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.video-card video {
  aspect-ratio: 1 / 1;
  background: #e7e9eb;
  display: block;
  object-fit: contain;
  width: 100%;
}

.video-card figcaption {
  color: #3c4043;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem 0.6rem 0.58rem;
  text-align: center;
}

.paper-copy {
  color: #36393d;
  font-size: 1.02rem;
  line-height: 1.75;
}

.paper-copy p:not(:last-child) {
  margin-bottom: 1rem;
}

.abstract-copy {
  max-width: 930px;
  margin: 0 auto;
}

.method-intro {
  margin: 0 auto;
  max-width: 1000px;
}

.method-pipelines {
  max-width: 1280px;
}

.method-main-figure {
  margin-top: 2.4rem;
}

.method-subsection {
  border-top: 1px solid var(--line);
  margin: 3.2rem auto 0;
  max-width: var(--content);
  padding-top: 2.7rem;
}

.method-subsection > .title {
  color: var(--ink);
  font-size: 1.45rem;
  font-weight: 650;
  letter-spacing: -0.018em;
  margin-bottom: 0.8rem;
}

.equation-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1.35rem;
}

.equation-block {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  min-width: 0;
  overflow-x: auto;
  padding: 0.9rem 1rem 0.75rem;
}

.equation-block-compact {
  margin: 1.25rem auto 0;
  max-width: 760px;
}

.equation-block-wide {
  grid-column: 1 / -1;
}

.equation-label {
  color: var(--muted);
  display: block;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.equation-block mjx-container[display="true"] {
  margin: 0.75rem 0 0.35rem !important;
  min-width: max-content;
}

.return-equation mjx-container[display="true"] {
  font-size: 92% !important;
}

.total-objective {
  background: var(--accent-soft);
  border-color: #cdddc9;
}

.sigreg-details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-top: 0.9rem;
  padding: 0.9rem 1rem 1rem;
}

.sigreg-details summary {
  color: #303337;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 650;
}

.sigreg-details .equation-block {
  border: 0;
  margin-top: 0.5rem;
  padding-left: 0;
  padding-right: 0;
}

.sigreg-details p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-top: 0.4rem;
}

.training-pipeline-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 2.4rem auto 0;
  max-width: var(--content);
}

.training-pipeline-grid article {
  border-left: 3px solid #c7d8c2;
  padding: 0.2rem 0 0.2rem 1rem;
}

.training-pipeline-grid .title {
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 0.35rem;
}

.training-pipeline-grid p {
  color: #4d5156;
  font-size: 0.92rem;
  line-height: 1.65;
}

.tldr-box {
  background: var(--accent-soft);
  border-left: 4px solid var(--accent);
  margin: 0 auto 3.2rem;
  max-width: var(--content);
  padding: 1.2rem 1.35rem 1.25rem;
}

.tldr-label {
  color: #2f632a;
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  margin-bottom: 0.45rem;
  text-transform: uppercase;
}

.tldr-list {
  color: #303337;
  display: grid;
  gap: 0.32rem;
  list-style-position: outside;
  list-style-type: decimal;
  margin-left: 1.25rem;
}

.experiment-setup {
  margin: 0 auto 3.5rem;
  max-width: var(--content);
}

.experiment-setup > .title {
  color: var(--ink);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.018em;
  margin-bottom: 1rem;
}

.setup-grid {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.setup-grid > div {
  padding: 1rem 1.15rem 1.05rem 0;
}

.setup-grid > div + div {
  border-left: 1px solid var(--line);
  padding-left: 1.15rem;
}

.setup-grid h4 {
  color: var(--ink);
  font-size: 0.96rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.setup-grid p {
  color: #4d5156;
  font-size: 0.91rem;
  line-height: 1.65;
}

.result-block {
  margin: 0 auto;
  max-width: var(--content);
}

.result-block + .result-block {
  border-top: 1px solid var(--line);
  margin-top: 3.2rem;
  padding-top: 2.8rem;
}

.result-block > .title {
  color: var(--ink);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.018em;
  margin-bottom: 1rem;
}

.experiment-figure {
  margin-top: 1.45rem;
  max-width: 1120px;
}

.experiment-figure + .experiment-figure {
  margin-top: 2rem;
}

.experiment-image-scroll {
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}

.chart-figure {
  max-width: 940px;
}

.section-kicker {
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.ablation-figure {
  max-width: 1280px;
}

.bibtex-section {
  padding-bottom: 4.5rem;
}

.bibtex {
  background: #f4f5f6;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: #2d3034;
  font-size: 0.86rem;
  line-height: 1.55;
  margin: 0;
  overflow-x: auto;
  padding: 1.25rem 1.4rem;
}

.bibtex code {
  background: transparent;
  color: inherit;
  padding: 0;
}

.site-footer {
  background: #f5f6f7;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  padding: 2rem 1.5rem 2.2rem;
}

.site-footer strong {
  color: #3c4043;
}

.footer-links {
  margin-top: 0.25rem;
}

.footer-links span {
  color: #9aa0a6;
  margin: 0 0.35rem;
}

.footer-links a {
  text-decoration: underline;
  text-decoration-color: #b0b5ba;
  text-underline-offset: 0.15em;
}

.footer-links a:hover {
  text-decoration-color: currentColor;
}

@media screen and (max-width: 1023px) {
  .video-task-grid {
    grid-auto-columns: minmax(190px, 34vw);
    grid-auto-flow: column;
    grid-template-columns: none;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    padding-bottom: 0.5rem;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
  }

  .video-card {
    scroll-snap-align: start;
  }
}

@media screen and (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .paper-hero .hero-body {
    padding: 3.2rem 1.1rem 1.8rem;
  }

  .publication-title {
    font-size: clamp(1.8rem, 8.1vw, 2.35rem);
    letter-spacing: -0.025em;
    line-height: 1.15;
  }

  .title-break {
    display: none;
  }

  .publication-authors {
    font-size: 1rem;
    gap: 0.05rem 0.38rem;
  }

  .publication-affiliations {
    display: block;
    font-size: 0.9rem;
  }

  .publication-affiliations span {
    display: block;
  }

  .publication-links {
    gap: 0.48rem;
  }

  .publication-link {
    font-size: 0.9rem;
    height: 2.55rem;
    padding: 0 0.95rem;
  }

  .section {
    padding: 3rem 1rem;
  }

  .teaser-section {
    padding-top: 1rem;
  }

  .teaser-figure {
    margin-left: -0.45rem;
    margin-right: -0.45rem;
  }

  .teaser-figure figcaption,
  .paper-figure figcaption {
    font-size: 0.88rem;
    text-align: left;
  }

  .study-scale {
    gap: 0.5rem;
    padding: 1rem 0;
  }

  .study-scale div {
    align-items: center;
    flex-direction: column;
    gap: 0.25rem;
    text-align: center;
  }

  .study-scale strong {
    font-size: 1.5rem;
  }

  .study-scale span {
    font-size: 0.73rem;
    line-height: 1.25;
  }

  .section-heading {
    margin-bottom: 1.6rem;
  }

  .section-heading p {
    font-size: 0.93rem;
  }

  .video-task-row + .video-task-row {
    margin-top: 1.8rem;
    padding-top: 1.65rem;
  }

  .video-task-title {
    align-items: flex-start;
    display: block;
  }

  .task-type {
    display: block;
    font-size: 0.7rem;
    margin-top: 0.08rem;
  }

  .video-task-header p {
    font-size: 0.86rem;
    line-height: 1.5;
    margin-top: 0.3rem;
  }

  .video-task-grid {
    grid-auto-columns: minmax(185px, 72vw);
    gap: 0.55rem;
  }

  .paper-copy {
    font-size: 0.97rem;
    line-height: 1.7;
  }

  .method-main-figure {
    margin-top: 1.9rem;
  }

  .method-subsection {
    margin-top: 2.5rem;
    padding-top: 2.1rem;
  }

  .method-subsection > .title {
    font-size: 1.28rem;
  }

  .equation-grid,
  .training-pipeline-grid,
  .setup-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .equation-block-wide {
    grid-column: auto;
  }

  .equation-block {
    padding: 0.8rem 0.85rem 0.68rem;
  }

  .equation-block mjx-container[display="true"] {
    font-size: 90% !important;
  }

  .return-equation mjx-container[display="true"] {
    font-size: 80% !important;
  }

  .sigreg-details {
    padding: 0.8rem 0.85rem 0.9rem;
  }

  .training-pipeline-grid {
    margin-top: 2rem;
  }

  .tldr-box {
    margin-bottom: 2.5rem;
    padding: 1rem 1rem 1.05rem;
  }

  .tldr-list {
    font-size: 0.92rem;
    line-height: 1.55;
  }

  .experiment-setup {
    margin-bottom: 2.8rem;
  }

  .setup-grid > div {
    padding: 0.9rem 0;
  }

  .setup-grid > div + div {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
  }

  .experiment-table-figure .figure-link {
    min-width: 880px;
  }

  .ablation-figure {
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .ablation-figure > .figure-link {
    min-width: 880px;
  }

  .result-block + .result-block {
    margin-top: 3rem;
    padding-top: 2.6rem;
  }

  .experiment-figure {
    margin-top: 1.5rem;
  }

  .bibtex {
    font-size: 0.74rem;
    padding: 1rem;
  }
}

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

  .publication-link {
    transition: none;
  }
}