:root {
  --color-text: #30343b;
  --color-heading: #202329;
  --color-muted: #626a75;
  --color-link: #1677b8;
  --color-link-hover: #0f5d91;
  --color-surface: #ffffff;
  --color-surface-muted: #f5f6f7;
  --color-surface-soft: #fafafa;
  --color-border: #dfe3e8;
  --color-border-strong: #c8cdd4;
  --color-button: #2c3037;
  --color-button-hover: #171a1f;
  --color-success: #237a4b;
  --content-width: 960px;
  --media-width: 1152px;
  --page-gutter: clamp(1rem, 4vw, 2rem);
  --section-space: clamp(3rem, 5vw, 4rem);
  --radius-small: 0.5rem;
  --radius-medium: 0.75rem;
  --radius-large: 1rem;
  --shadow-media: 0 12px 30px rgb(18 27 38 / 8%);
  --font-heading: "Google Sans", "Product Sans", "Avenir Next", Avenir,
    "Segoe UI", Helvetica, Arial, sans-serif;
  --font-body: "Noto Sans", Inter, ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.72;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 1000;
  padding: 0.6rem 0.85rem;
  transform: translateY(calc(-100% - 1rem));
  border-radius: var(--radius-small);
  background: var(--color-heading);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  transition: transform 120ms ease;
}

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

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

img {
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: var(--color-link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.14em;
}

a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
video:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid #53a7db;
  outline-offset: 3px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.018em;
  text-align: center;
}

h2 {
  margin-bottom: 1.4rem;
  font-size: clamp(1.85rem, 4vw, 2.55rem);
}

h3 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.2rem, 2vw, 1.45rem);
}

p {
  margin-top: 0;
  margin-bottom: 1.15rem;
}

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

strong {
  color: var(--color-heading);
}

code,
pre {
  font-family: var(--font-mono);
}

.content-container,
.container.is-max-desktop,
.publication-header .container {
  width: min(
    calc(100% - var(--page-gutter) - var(--page-gutter)),
    var(--content-width)
  );
  max-width: var(--content-width) !important;
  margin-inline: auto;
}

.media-container,
.container.is-max-widescreen {
  width: min(
    calc(100% - var(--page-gutter) - var(--page-gutter)),
    var(--media-width)
  );
  max-width: var(--media-width) !important;
  margin-inline: auto;
}

.site-section,
main > .section,
main > section {
  padding: var(--section-space) 0;
}

.site-section + .site-section,
main > section + section {
  border-top: 1px solid rgb(32 35 41 / 4%);
}

.section--muted,
.section-muted,
.hero.is-light,
.teaser {
  background: var(--color-surface-muted);
}

.section-heading {
  max-width: 48rem;
  margin-inline: auto;
  margin-bottom: clamp(2rem, 4vw, 3rem);
  text-align: center;
}

.section-heading p,
.section-lead {
  color: var(--color-muted);
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 1.65;
}

.publication-header,
.publication-header.hero {
  background: var(--color-surface);
}

.publication-header .hero-body {
  padding: clamp(3.75rem, 8vw, 6.5rem) var(--page-gutter)
    var(--section-space);
}

.publication-header .container {
  width: min(100%, var(--content-width));
}

.publication-title,
.publication-title.title {
  max-width: 940px;
  margin: 0 auto 1.5rem !important;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: clamp(2.35rem, 6vw, 3.35rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-align: center;
}

.publication-authors {
  max-width: 880px;
  margin: 0 auto 0.65rem;
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 2.3vw, 1.25rem);
  line-height: 1.7;
  text-align: center;
}

.publication-authors a {
  color: var(--color-link) !important;
  text-decoration: none;
}

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

.author-block {
  display: inline-block;
  margin: 0 0.28rem;
  white-space: nowrap;
}

.publication-affiliations,
.publication-venue,
.publication-note {
  margin-inline: auto;
  color: var(--color-muted);
  line-height: 1.5;
  text-align: center;
}

.publication-affiliations {
  margin-top: 0.5rem;
}

.publication-venue {
  margin-top: 0.75rem;
  color: #4d535b;
  font-family: var(--font-heading);
  font-size: 1.08rem;
  font-weight: 600;
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 1.7rem;
}

.link-block {
  display: inline-flex;
}

.publication-link,
.link-block a,
a.button.is-dark,
.button.is-dark {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.66rem 1.15rem;
  border: 1px solid var(--color-button);
  border-radius: 999px;
  background: var(--color-button);
  color: #fff !important;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none !important;
  box-shadow: 0 5px 14px rgb(0 0 0 / 9%);
  transition: background-color 160ms ease, border-color 160ms ease,
    transform 160ms ease, box-shadow 160ms ease;
}

.publication-link:hover,
.link-block a:hover,
a.button.is-dark:hover,
.button.is-dark:hover {
  border-color: var(--color-button-hover);
  background: var(--color-button-hover);
  box-shadow: 0 7px 18px rgb(0 0 0 / 14%);
  transform: translateY(-1px);
}

.button.is-disabled,
.button.is-disabled:hover {
  border-color: var(--color-button);
  background: var(--color-button);
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.publication-link .icon,
.link-block .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15em;
  height: 1.15em;
  line-height: 1;
}

.link-block .ai {
  display: block;
  font-size: 1.05rem;
  line-height: 1;
  transform: translateY(1px);
}

.teaser,
.site-section.teaser,
main > .teaser,
.teaser.hero {
  padding: var(--section-space) 0;
}

.teaser .hero-body {
  padding: 0;
}

.teaser-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.55rem, 1.4vw, 1rem);
}

.teaser-copy {
  max-width: 940px;
  margin: clamp(1.5rem, 3vw, 2.25rem) auto 0;
  color: #333941;
  font-family: var(--font-heading);
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  line-height: 1.55;
  text-align: center;
}

.teaser video,
.teaser img {
  width: 100%;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-medium);
  background: #e2e5e8;
  object-fit: cover;
  box-shadow: var(--shadow-media);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: var(--color-border);
}

.site-section.overview-section,
main > .overview-section {
  padding-top: var(--section-space);
}

.teaser .teaser-stats {
  max-width: var(--content-width);
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
}

.overview-section .prose > :where(p, ul, ol),
.prose.results-summary > :where(p, ul, ol) {
  max-width: 90ch;
}

.overview-section .prose > p,
.prose.results-summary > p {
  text-align: justify;
  text-justify: inter-word;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  min-height: 6.75rem;
  padding: 1.1rem 1.25rem;
  background: var(--color-surface);
  line-height: 1.4;
  text-align: center;
}

.stat-item strong {
  font-size: clamp(1.25rem, 2vw, 1.4rem);
  line-height: 1.1;
}

.stat-item span {
  font-size: clamp(1rem, 1.5vw, 1.075rem);
  line-height: 1.3;
}

.stat-value {
  display: block;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 650;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.stat-label {
  display: block;
  margin-top: 0.65rem;
  color: var(--color-muted);
  line-height: 1.4;
}

.prose,
.publication-body {
  color: var(--color-text);
  font-size: 1.04rem;
}

.prose > :where(p, ul, ol),
.publication-body > :where(p, ul, ol) {
  max-width: 76ch;
  margin-inline: auto;
}

.prose ul,
.prose ol,
.publication-body ul,
.publication-body ol {
  padding-left: 1.3rem;
}

.prose li + li,
.publication-body li + li {
  margin-top: 0.45rem;
}

.figure-panel,
.publication-banner,
.media-panel {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background: #fff;
  box-shadow: var(--shadow-media);
}

.figure-panel.figure-panel--bare {
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.training-section .section-title {
  margin-bottom: clamp(2rem, 3vw, 2.75rem);
}

.figure-panel img,
.media-panel img {
  width: 100%;
}

.figure-panel.is-padded,
.media-panel.is-padded {
  padding: clamp(0.8rem, 2vw, 1.5rem);
}

.figure-caption,
figcaption {
  margin-top: 0.85rem;
  color: var(--color-muted);
  font-size: 0.91rem;
  line-height: 1.55;
  text-align: center;
}

.feature-grid,
.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 1.5rem);
  margin-top: clamp(2rem, 4vw, 3rem);
}

.feature-card,
.method-card {
  padding: clamp(1.35rem, 3vw, 1.8rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
}

.section--muted .feature-card,
.section--muted .method-card,
.section-muted .feature-card,
.section-muted .method-card {
  background: rgb(255 255 255 / 86%);
}

.feature-card p,
.method-card p,
.feature-card li,
.method-card li {
  color: #4d545e;
}

.feature-card ul,
.method-card ul {
  margin: 0;
  padding-left: 1.2rem;
}

.feature-card h3::before,
.method-card h3::before {
  display: block;
  width: 2.1rem;
  height: 3px;
  margin-bottom: 0.85rem;
  border-radius: 99px;
  background: var(--color-link);
  content: "";
}

.training-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding-left: 0;
  margin-top: 2rem;
  list-style: none;
  counter-reset: training-stage;
}

.training-step {
  position: relative;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
  counter-increment: training-stage;
}

.training-step::before {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 50%;
  background: #e5f2fa;
  color: var(--color-link-hover);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  content: counter(training-stage);
}

.training-step h3 {
  margin-bottom: 0.6rem;
}

.training-step p {
  color: var(--color-muted);
  font-size: 0.96rem;
  line-height: 1.6;
}

.segmentation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 3vw, 2rem);
  margin-top: 2rem;
}

.segmentation-example {
  margin: 0;
}

.segmentation-labels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.35rem;
  margin-bottom: 0.45rem;
  color: #4e555e;
  font-family: var(--font-heading);
  font-size: clamp(0.66rem, 1.3vw, 0.82rem);
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
}

.result-highlights {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin-bottom: 2.25rem;
}

.result-highlight {
  padding: 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface-soft);
  text-align: center;
}

.result-highlight strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--color-link-hover);
  font-family: var(--font-heading);
  font-size: 1.35rem;
}

.result-highlight span {
  color: var(--color-muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.table-block + .table-block {
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

.table-block h3 {
  margin-bottom: 0.55rem;
}

.results-block {
  padding-top: clamp(2.5rem, 4vw, 3.25rem);
}

.table-note {
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
  -webkit-overflow-scrolling: touch;
  scrollbar-color: #abb2ba transparent;
}

.table-container:focus-visible {
  outline: 3px solid #53a7db;
  outline-offset: 2px;
}

.results-table,
.table-container table,
table.table {
  width: 100%;
  min-width: 700px;
  margin: 0 !important;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.35;
}

.results-table caption,
.table-container caption {
  padding: 1rem 1rem 0.75rem;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
}

.results-table th,
.results-table td,
.table-container th,
.table-container td,
table.table th,
table.table td {
  padding: 0.72rem 0.8rem;
  border: 0;
  border-bottom: 1px solid #e9ebee;
  vertical-align: middle;
  text-align: center;
}

.results-table thead th,
.table-container thead th,
table.table thead th {
  background: #f3f5f7;
  color: #363b43;
  font-family: var(--font-heading);
  font-size: 0.83rem;
  font-weight: 650;
  white-space: nowrap;
}

.results-table thead tr:first-child th,
.table-container thead tr:first-child th {
  border-bottom-color: var(--color-border-strong);
}

.results-table tbody th,
.table-container tbody th,
table.table tbody th {
  color: var(--color-heading);
  font-weight: 550;
  text-align: left;
  white-space: nowrap;
}

.results-table tbody tr:nth-child(even),
.table-container tbody tr:nth-child(even),
table.table tbody tr:nth-child(even) {
  background: #fafbfc;
}

.results-table tbody tr:hover,
.table-container tbody tr:hover,
table.table tbody tr:hover {
  background: #f3f8fb;
}

.results-table tbody tr:last-child > *,
.table-container tbody tr:last-child > * {
  border-bottom: 0;
}

.results-table .best,
.table-container .best {
  color: var(--color-heading);
  font-weight: 750;
}

.results-table .second-best,
.table-container .second-best {
  text-decoration: underline;
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.12em;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.4vw, 1.5rem);
}

.video-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
  box-shadow: 0 8px 24px rgb(18 27 38 / 7%);
}

.video-card video {
  width: 100%;
  aspect-ratio: 5 / 4;
  background: #24272c;
  object-fit: cover;
}

.video-card figcaption {
  min-height: 3.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0.8rem 1rem;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.35;
}

.trajectory-overview {
  margin-top: clamp(2rem, 4vw, 3rem);
}

.citation-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid #ccd1d7;
  border-radius: var(--radius-medium);
  background: #f6f7f8;
}

.citation-toolbar {
  display: flex;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0.65rem 0.55rem 1rem;
  border-bottom: 1px solid var(--color-border);
  background: #eceff2;
}

.citation-label {
  color: #474e57;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 650;
}

.citation-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem 0.9rem;
}

.copy-button,
#copy-bibtex {
  min-height: 1.9rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid #aeb5bd;
  border-radius: 999px;
  background: #fff;
  color: #353b43;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.copy-button:hover,
#copy-bibtex:hover {
  border-color: #7c858f;
  background: #fafafa;
}

.copy-button[data-copy-state="success"],
#copy-bibtex[data-copy-state="success"] {
  border-color: #68a985;
  color: var(--color-success);
}

.citation-shell pre,
#bibtex-code {
  margin: 0;
  padding: clamp(1rem, 3vw, 1.4rem);
  overflow-x: auto;
  background: transparent;
  color: #2d333b;
  font-family: var(--font-mono);
  font-size: clamp(0.75rem, 1.5vw, 0.88rem);
  line-height: 1.55;
  tab-size: 2;
  white-space: pre;
}

.copy-status,
#copy-status {
  color: var(--color-success);
  font-size: 0.85rem;
}

.acknowledgments {
  color: var(--color-muted);
}

.footer,
footer {
  padding: var(--section-space) var(--page-gutter);
  background: #f0f2f4;
  color: #59616b;
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: center;
}

.footer .content,
footer .content {
  max-width: 780px;
  margin-inline: auto;
}

.footer a,
footer a {
  color: #365f7c;
}

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

@media (max-width: 900px) {
  .teaser-grid,
  .result-highlights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .feature-card,
  .method-card,
  .training-step {
    padding: 1.35rem;
  }
}

@media (max-width: 640px) {
  :root {
    --section-space: 3.4rem;
    --page-gutter: 1rem;
  }

  body {
    font-size: 0.97rem;
  }

  .publication-header .hero-body {
    padding-top: 3.2rem;
  }

  .publication-title,
  .publication-title.title {
    font-size: clamp(2rem, 8vw, 2.25rem);
  }

  .author-block {
    margin-inline: 0.15rem;
  }

  .teaser-grid,
  .video-grid,
  .segmentation-grid,
  .result-highlights {
    grid-template-columns: 1fr;
  }

  .teaser-grid {
    gap: 0.8rem;
  }

  .teaser-grid > :nth-child(n + 3) {
    display: none;
  }

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

  .stat-item {
    min-height: 0;
    padding: 1.4rem 1rem;
  }

  .segmentation-labels {
    font-size: 0.65rem;
  }

  .citation-toolbar {
    align-items: center;
  }

  .table-container::after {
    display: block;
    padding: 0.55rem 0.8rem;
    border-top: 1px solid var(--color-border);
    color: var(--color-muted);
    content: "Scroll horizontally to view the full table";
    font-size: 0.76rem;
    text-align: center;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .publication-link:hover,
  .link-block a:hover,
  a.button.is-dark:hover,
  .button.is-dark:hover {
    transform: none;
  }
}

@media print {
  :root {
    --page-gutter: 0;
    --section-space: 2rem;
  }

  body {
    color: #000;
    font-size: 10pt;
  }

  .publication-header .hero-body {
    padding-top: 1rem;
  }

  .publication-link,
  .link-block a,
  .copy-button,
  #copy-bibtex,
  video {
    display: none !important;
  }

  .site-section,
  main > section {
    break-inside: avoid;
  }

  .figure-panel,
  .media-panel,
  .video-card,
  .citation-shell,
  .table-container {
    box-shadow: none;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    word-break: break-all;
  }
}