:root {
  --palette-blue: #8ee8d8;
  --palette-light-blue: #d1f9f1;
  --palette-dark-blue: #133844;
  --palette-light-green: #dff2ea;
  --palette-warm-green: #afdfcb;
  --palette-green: #4db78c;
  --palette-dark-green: #13553a;
  --slate-1: #eceef1;
  --slate-2: #b5bdc8;
  --slate-3: #546072;
  --slate-4: #232830;
  --ink: var(--slate-4);
  --ink-soft: var(--slate-3);
  --paper: #ffffff;
  --surface: var(--slate-1);
  --surface-blue: var(--palette-light-green);
  --line: var(--slate-2);
  --dark: var(--palette-dark-blue);
  --blue: var(--palette-dark-green);
  --blue-dark: var(--palette-dark-blue);
  --red: var(--palette-dark-green);
  --yellow: var(--palette-blue);
  --green: var(--palette-green);
  --orange: var(--palette-warm-green);
  --content: 760px;
  --wide: 1080px;
  --radius: 6px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.58;
  text-rendering: optimizeLegibility;
}

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

/* Media panels share an outline; gallery media keeps its dark surface. */
.presentation-video,
.teaser-slide video,
.teaser-placeholder,
.figure-video,
.sample-card,
.paper-figure,
.results-table-frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.presentation-video,
.teaser-slide video,
.figure-video video,
.evaluation-comparison-video {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

a {
  color: var(--blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--blue-dark);
}

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

h1,
h2 {
  font-family: var(--font-display);
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: 12px;
  left: 12px;
  padding: 8px 12px;
  border-radius: 5px;
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 40px), var(--content));
  margin-inline: auto;
}

.container-wide {
  width: min(calc(100% - 40px), var(--wide));
  max-width: var(--wide);
}

.publication-header {
  border-bottom: 1px solid var(--line);
  text-align: center;
  background: var(--paper);
}

.cube-stripe {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 6px;
}

.stripe-red {
  background: var(--red);
}
.stripe-blue {
  background: var(--blue);
}
.stripe-yellow {
  background: var(--yellow);
}
.stripe-green {
  background: var(--green);
}
.stripe-orange {
  background: var(--orange);
}

.publication-heading {
  padding-top: 38px;
  padding-bottom: 32px;
}

.venue {
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 750;
  line-height: 1.35;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 0 auto;
  font-size: 3.15rem;
  font-weight: 550;
  line-height: 1.08;
  letter-spacing: 0;
}

.publication-subtitle {
  max-width: 700px;
  margin: 7px auto 0;
  color: var(--ink-soft);
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.3;
}

.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  margin: 18px auto 4px;
  color: var(--blue);
  font-size: 0.96rem;
}

.author {
  white-space: nowrap;
}

sup {
  font-size: 0.65em;
}

.affiliations {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 24px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px;
  margin-top: 21px;
}

.button {
  min-height: 36px;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  font-size: 0.8rem;
  font-weight: 680;
  text-decoration: none;
}

.button:hover,
.button:focus-visible {
  border-color: var(--ink);
  color: var(--ink);
  background: var(--surface);
}

.button-primary {
  border-color: var(--blue);
  color: #fff;
  background: var(--blue);
}

.button-primary:hover,
.button-primary:focus-visible {
  border-color: var(--blue-dark);
  color: #fff;
  background: var(--blue-dark);
}

.button[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

.section {
  padding: 58px 0;
}

.section-muted {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.teaser {
  padding-top: 42px;
  padding-bottom: 46px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.teaser-carousel {
  position: relative;
  width: min(100%, var(--wide));
  margin: 0 auto;
  padding: 0 48px;
}

.carousel-button {
  position: absolute;
  z-index: 1;
  top: calc(50% - 18px);
  display: grid;
  width: 42px;
  height: 54px;
  padding: 0;
  border: 0;
  place-items: center;
  color: var(--ink-soft);
  background: transparent;
  font-family: var(--font-body);
  font-size: 2.6rem;
  line-height: 1;
  transform: translateY(-50%);
  cursor: pointer;
}

.carousel-button:hover,
.carousel-button:focus-visible {
  color: var(--ink);
}

.carousel-button-previous {
  left: 0;
}

.carousel-button-next {
  right: 0;
}

.teaser-viewport {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3.1;
}

.teaser-track {
  position: absolute;
  inset: 0;
}

.teaser-slide {
  position: absolute;
  top: 0;
  left: 50%;
  width: 32%;
  margin: 0;
  opacity: 0;
  transform: translateX(-50%);
  transition:
    left 800ms ease,
    opacity 400ms ease,
    transform 800ms ease;
  pointer-events: none;
}

.teaser-slide.is-previous {
  opacity: 1;
  transform: translateX(-50%);
  pointer-events: auto;
}

.teaser-slide.is-active {
  z-index: 1;
  opacity: 1;
  transform: translateX(-50%);
  pointer-events: auto;
}

.teaser-slide.is-next {
  opacity: 1;
  transform: translateX(-50%);
  pointer-events: auto;
}

.teaser-slide video,
.teaser-placeholder {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

.teaser-placeholder {
  display: grid;
  place-items: center;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.carousel-navigation {
  display: flex;
  min-height: 11px;
  margin-top: 11px;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.carousel-dot {
  width: 7px;
  height: 7px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--slate-2);
  cursor: pointer;
}

.carousel-dot:hover,
.carousel-dot:focus-visible {
  background: var(--ink-soft);
}

.carousel-dot[aria-current="true"] {
  background: var(--palette-blue);
}

.abstract-section {
  border-bottom: 1px solid var(--line);
}

.abstract-section .section-heading {
  margin-bottom: 0;
}

.voice-picker {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px;
  margin-bottom: 14px;
}

.voice-picker .button {
  font-family: inherit;
  cursor: pointer;
}

.voice-picker .button[aria-pressed="true"] {
  border-color: var(--blue);
  color: #fff;
  background: var(--blue);
}

.presentation-video {
  display: block;
  width: 100%;
  margin-inline: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.prose {
  max-width: 720px;
}

.prose h2,
.section-heading h2 {
  margin: 0 0 17px;
  font-size: 2rem;
  font-weight: 570;
  line-height: 1.18;
  letter-spacing: 0;
}

.section-heading h2,
.citation-heading h2,
.acknowledgements h2 {
  display: block;
}

.section-heading h2::after,
.citation-heading h2::after,
.acknowledgements h2::after {
  display: block;
  width: 100%;
  height: 1px;
  margin-top: 10px;
  background: var(--line);
  content: "";
}

.citation-heading h2 {
  flex: 1;
}

.prose p {
  margin: 0 0 15px;
}

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

.section-heading {
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 30px;
}

.container:not(.container-wide) > .section-heading {
  max-width: none;
}

.section-heading > p {
  margin: 0;
}

.section-description {
  color: var(--ink-soft);
}

.paper-figure figcaption {
  margin-top: 11px;
  color: var(--ink-soft);
  font-size: 0.84rem;
  line-height: 1.5;
}

.paper-figure {
  position: relative;
  margin: 0;
}

.paper-figure img {
  width: 100%;
}

.method-overview-figure {
  max-width: 864px;
  margin-inline: auto;
}

.method-overview-figure > svg + svg {
  margin-top: 10px;
}

/* A small website-only white frame surrounds the three results videos. */
.figure-video {
  overflow: hidden;
  padding: 6px;
  background: #fff;
}

.xt-slices-figure,
.demo-videos {
  margin: 12px 0 30px;
}

.demo-video {
  margin: 0;
}

.demo-video figcaption {
  text-align: center;
  margin-top: 8px;
}

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

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

.evaluation-sample-card {
  grid-column: 1 / -1;
}

.evaluation-sample-card[data-section="video_datasets"] {
  grid-column: auto;
}

.evaluation-gallery-group {
  border: 1px solid var(--palette-warm-green);
  border-left: 4px solid var(--palette-dark-green);
  border-radius: var(--radius);
  background: #f4faf7;
  overflow: hidden;
}

.evaluation-gallery-section {
  grid-column: 1 / -1;
  margin: 0;
  padding: 8px 16px;
  background: var(--palette-light-green);
  color: var(--palette-dark-blue);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.3;
}

.evaluation-gallery-group + .evaluation-gallery-group {
  margin-top: 14px;
}

.evaluation-gallery-section {
  cursor: pointer;
}

.evaluation-gallery-group[open] > .evaluation-gallery-section {
  border-bottom: 1px solid var(--palette-warm-green);
}

.evaluation-gallery-section:focus-visible {
  outline: 2px solid var(--palette-dark-green);
  outline-offset: -3px;
}

.evaluation-gallery-section h3 {
  display: inline;
  margin: 0;
  font: inherit;
}

.evaluation-gallery-group > .evaluation-sample-grid {
  padding: 12px;
}

.sample-card {
  min-width: 0;
  margin: 0;
  overflow: hidden;
}

.gallery-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 17px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.gallery-heading-row h2 {
  margin: 0;
}

.gallery-heading-row h2::after {
  display: none;
}

.gallery-diagnostics-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-size: 0.85rem;
  cursor: pointer;
}

.gallery-diagnostics-toggle input {
  appearance: none;
  position: relative;
  width: 38px;
  height: 22px;
  margin: 0;
  border: 1px solid #84939d;
  border-radius: 12px;
  background: #d5dde2;
  cursor: pointer;
}

.gallery-diagnostics-toggle input::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px #0003;
}

.gallery-diagnostics-toggle input:checked {
  background: var(--palette-dark-blue);
  border-color: var(--palette-dark-blue);
}

.gallery-diagnostics-toggle input:checked::before {
  transform: translateX(16px);
}

.gallery-diagnostics-toggle input:focus-visible {
  outline: 2px solid var(--palette-dark-blue);
  outline-offset: 3px;
}

.evaluation-comparison-video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: auto 5 / 1.07;
  background: #0b1f33;
  object-fit: contain;
}

.gallery-video-viewport {
  overflow: hidden;
}

.gallery-video-track {
  display: grid;
  grid-template-columns: repeat(2, 100%);
  transition: transform 350ms ease-in-out;
}

.gallery-video-track.show-diagnostics {
  transform: translateX(-100%);
}

.evaluation-comparison-placeholder {
  display: grid;
  width: 100%;
  aspect-ratio: 5 / 1.07;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 2px;
  background: #0b1f33;
}

.evaluation-placeholder-column {
  display: grid;
  min-width: 0;
  padding: 4px;
  place-items: center;
  align-content: center;
  gap: 12px;
  color: #8ecae6;
  font-size: 0.72rem;
  text-align: center;
  overflow-wrap: anywhere;
}

.evaluation-placeholder-column span {
  color: #8ecae6;
}

.sample-card figcaption {
  min-height: 0;
  padding: 8px 10px;
}

.sample-card figcaption strong {
  font-size: 0.8rem;
  line-height: 1.3;
}

.results-table-frame {
  overflow: hidden;
}

#results > .container > .results-table-frame {
  width: 90%;
  margin-inline: auto;
}

.results-subheading {
  margin: 30px 0 12px;
  font-size: 1.15rem;
  font-weight: 650;
  line-height: 1.3;
}

.citation-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.citation-heading h2 {
  margin-bottom: 15px;
}

.copy-button {
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--ink);
  background: #fff;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}

.copy-button:hover,
.copy-button:focus-visible {
  border-color: var(--ink);
  background: var(--surface);
}

pre {
  max-width: 100%;
  margin: 0;
  overflow-x: auto;
  padding: 22px 24px;
  border: 1px solid var(--palette-green);
  border-radius: 7px;
  color: #fff;
  background: var(--dark);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.79rem;
  line-height: 1.55;
}

.acknowledgements {
  padding-top: 54px;
  padding-bottom: 54px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.acknowledgements h2 {
  font-size: 1.45rem;
}

footer {
  padding: 30px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  background: #fff;
  font-size: 0.8rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.footer-content p {
  margin: 0;
}

@media (max-width: 760px) {
  #results > .container > .results-table-frame {
    width: 100%;
  }

  .container,
  .container-wide {
    width: min(calc(100% - 28px), var(--wide));
  }

  .publication-heading {
    padding-top: 32px;
  }

  .section {
    padding: 48px 0;
  }

  .footer-content {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .gallery-heading-row h2 {
    font-size: 1.4rem;
  }

  .gallery-heading-row {
    gap: 8px;
  }

  h1 {
    font-size: 2.5rem;
  }

  .publication-subtitle {
    font-size: 1.05rem;
  }

  .teaser-carousel {
    padding: 0 34px;
  }

  .carousel-button {
    width: 30px;
    font-size: 2.25rem;
  }

  .carousel-navigation {
    gap: 4px;
  }

  .carousel-dot {
    width: 6px;
    height: 6px;
  }

  .publication-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .button {
    display: grid;
    place-items: center;
  }

  .citation-heading {
    align-items: flex-start;
  }
}

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

  .teaser-slide,
  .gallery-video-track {
    transition: none;
  }
}