@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700;800&family=Roboto+Mono:wght@300;400;600;700&display=swap');

:root {
  --paper: #fdfaf4;
  --paper-2: #f6efe4;
  --ink: #111111;
  --muted: #5f584d;
  --line: #111111;
  --soft-line: #d8cdbd;
  --card: #fffdf8;
  --shadow: 0 18px 40px rgba(24, 18, 12, 0.12);
  --mono: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 15% 0%, rgba(255,255,255,0.8), transparent 36rem),
    radial-gradient(circle at 85% 18%, rgba(228, 205, 172, 0.28), transparent 34rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  padding: 60px 30px;
}

a { color: inherit; text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }

.toc {
  width: 215px;
  font-family: var(--mono);
  position: fixed;
  top: 245px;
  display: none;
  z-index: 10;
}
.toc h3 {
  font-family: var(--serif);
  font-size: 24px;
  margin: 0 0 10px 0;
}
.toc hr {
  border: 0;
  height: 1px;
  background-color: var(--soft-line);
  margin-bottom: 16px;
}
.toc a {
  display: block;
  font-size: 15px;
  line-height: 1.35;
  margin-bottom: 12px;
  color: #303030;
}
.toc a.active { font-weight: 700; text-decoration: underline; }

@media (min-width: 1400px) {
  .toc { display: block; left: max(28px, calc(50vw - 710px)); }
}

.main-content {
  max-width: 980px;
  margin: 0 auto;
}

.hero { margin-bottom: 44px; }
.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  background: rgba(255,255,255,0.52);
  margin-bottom: 26px;
}
.hero h1 {
  font-size: clamp(68px, 13vw, 148px);
  line-height: 0.78;
  letter-spacing: -0.07em;
  margin: 0 0 22px;
  font-weight: 800;
}
.hero h2 {
  font-size: clamp(31px, 4.4vw, 50px);
  line-height: 1.07;
  font-weight: 400;
  letter-spacing: -0.035em;
  margin: 0 0 34px;
  white-space: nowrap;
}
.hero h2 br {
  display: block;
}
.authors {
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1.65;
  color: #333;
  margin: 0 0 22px;
}
.authors span { display: block; }
.authors .affiliation { font-weight: 700; color: #111; }
.edit-note { color: var(--muted); font-size: 12px; }
.hero-copy {
  font-size: 24px;
  line-height: 1.52;
  max-width: 900px;
  margin: 34px 0 18px;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 34px;
  align-items: center;
  justify-content: center;
  margin: 32px 0 34px;
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
}
.quick-links a {
  padding: 8px 4px;
  color: #252525;
}
.quick-links .primary-link {
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  box-shadow: var(--shadow);
}
.quick-links .primary-link:hover,
.quick-links .primary-link:focus {
  text-decoration: none;
  background: #2a2a2a;
}

.hero-media-card,
figure {
  margin: 0 0 34px;
}
img,
video.hero-video,
.media-frame,
.paper-figure,
.gallery-video {
  width: 100%;
  display: block;
  border: 1.5px solid var(--line);
  border-radius: 18px;
  background: var(--paper-2);
  box-shadow: var(--shadow);
}
video.hero-video { aspect-ratio: 16 / 9; object-fit: cover; }
.media-frame { object-fit: cover; }
.paper-figure {
  height: auto;
  border: 0;
  object-fit: contain;
  background: transparent;
}
.pdf-figure {
  width: 100%;
  height: auto;
  display: block;
  border: 0;
  border-radius: 18px;
  background: #fff;
  box-shadow: var(--shadow);
}
.pdf-figure--teaser { aspect-ratio: 16 / 9; }
.pdf-figure--overview { aspect-ratio: 2 / 1; }
.pdf-figure--demo { aspect-ratio: 2.8 / 1; }
.pdf-figure--rollout { aspect-ratio: 2.8 / 1; }
.figure-caption,
figcaption {
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
  text-align: center;
  margin: 14px auto 0;
  max-width: 880px;
}
code { font-family: var(--mono); font-size: 0.92em; }

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

.video-grid,
.image-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.video-grid {
  margin: 0 0 14px;
}
.video-card {
  margin: 0;
}
.video-card video {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1.5px solid var(--line);
  border-radius: 18px;
  background: #222;
  box-shadow: var(--shadow);
}
.video-card figcaption {
  font-size: 12px;
  margin-top: 9px;
}
.compact-video-grid {
  align-content: start;
}
.compact-video-grid .video-card video {
  aspect-ratio: 4 / 3;
}
.image-gallery {
  margin: 28px 0 0;
}
.image-gallery img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 34px 0 34px;
}
.stats-strip article {
  border: 1.5px solid var(--ink);
  border-radius: 18px;
  background: rgba(255,255,255,0.46);
  padding: 22px 16px;
  min-height: 142px;
}
.stats-strip strong {
  display: block;
  font-size: clamp(30px, 3.8vw, 46px);
  line-height: 1;
  letter-spacing: -0.055em;
}
.stats-strip span {
  display: block;
  font-family: var(--mono);
  color: var(--muted);
  font-size: 13px;
  margin-top: 16px;
  line-height: 1.45;
}

.section {
  font-size: 20px;
  line-height: 1.72;
  margin: 68px 0 86px;
}
.section p { margin: 0 0 22px; }
.tagline,
.subsection-title {
  font-family: var(--mono);
  font-size: clamp(19px, 2vw, 24px);
  background: var(--ink);
  color: #fff;
  display: inline-block;
  padding: 9px 16px;
  margin: 0 0 30px;
}
.subsection-title {
  font-size: 18px;
  margin-top: 36px;
  padding: 7px 13px;
}
.pull-quote {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.22;
  font-style: italic;
  color: #28231d;
  margin: 16px 0 28px !important;
}

.media-grid {
  display: grid;
  gap: 26px;
  align-items: stretch;
  margin: 34px 0;
}
.two-col { grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr); }
.media-grid > * { min-width: 0; }

.pipeline-card,
.dataset-panel,
.card-grid article,
.result-callout,
.bibtex-code {
  border: 1.5px solid var(--ink);
  border-radius: 18px;
  background: rgba(255,255,255,0.58);
  box-shadow: var(--shadow);
}
.pipeline-card,
.dataset-panel {
  padding: 28px;
  height: 100%;
}
.pipeline-card.soft { background: rgba(255,253,248,0.8); }
.pipeline-card h3,
.dataset-panel h3,
.card-grid h3 {
  font-size: 28px;
  line-height: 1.15;
  margin: 0 0 18px;
}
.stage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.55;
}
.stage-list li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  border-top: 1px solid var(--soft-line);
  padding: 12px 0;
}
.stage-list li:first-child { border-top: 0; }
.stage-list span { font-weight: 700; color: #111; }

.card-grid {
  display: grid;
  gap: 16px;
  margin: 34px 0;
}
.four-col { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid article {
  padding: 22px 20px;
  min-height: 210px;
}
.card-grid.compact article { min-height: 185px; }
.card-grid h3 {
  font-size: 22px;
  font-family: var(--mono);
  letter-spacing: -0.04em;
}
.card-grid p {
  font-size: 16px;
  line-height: 1.55;
  margin: 0;
  color: #3f3931;
}
.card-grid strong {
  display: block;
  font-size: 42px;
  letter-spacing: -0.06em;
  margin-bottom: 12px;
}

.video-gallery-section {
  width: 100vw;
  position: relative;
  margin-left: calc((100% - 100vw) / 2);
  margin-top: 46px;
  margin-bottom: 20px;
}
.video-gallery-container {
  max-width: 1180px;
  margin: 0 auto;
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.video-gallery-container::-webkit-scrollbar { display: none; }
.video-gallery {
  display: flex;
  gap: 18px;
  width: max-content;
  margin: 0 auto;
  padding: 0 22px 14px;
}
.gallery-video {
  flex: 0 0 auto;
  width: auto;
  height: 225px;
  object-fit: cover;
}
.gallery-caption { padding: 0 24px; }

.snapshot-list {
  display: grid;
  gap: 0;
  margin: 0;
}
.snapshot-list div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  padding: 13px 0;
  border-top: 1px solid var(--soft-line);
  font-family: var(--mono);
  font-size: 14px;
}
.snapshot-list div:first-child { border-top: 0; }
.snapshot-list dt { color: var(--muted); }
.snapshot-list dd { margin: 0; font-weight: 700; color: var(--ink); }

.snapshot-timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1.5px solid var(--ink);
  border-radius: 18px;
  overflow: hidden;
  margin: 28px 0 38px;
  background: rgba(255,255,255,0.45);
  box-shadow: var(--shadow);
}
.snapshot-timeline div {
  padding: 23px 18px;
  min-height: 132px;
  border-left: 1px solid var(--soft-line);
}
.snapshot-timeline div:first-child { border-left: 0; }
.snapshot-timeline span {
  display: block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 16px;
}
.snapshot-timeline strong {
  display: block;
  font-family: var(--mono);
  font-weight: 400;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.chip-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.chip-cloud span {
  font-family: var(--mono);
  font-size: 13px;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  padding: 7px 10px;
  background: var(--paper);
}

.result-callout {
  padding: 22px 24px;
  font-size: 22px;
  line-height: 1.45;
  margin: 28px 0;
}
.result-callout strong {
  font-family: var(--mono);
  font-size: 16px;
  display: block;
  margin-bottom: 6px;
}

.table-wrap {
  overflow-x: auto;
  margin: 30px 0 42px;
  border: 1.5px solid var(--ink);
  border-radius: 18px;
  background: rgba(255,255,255,0.55);
  box-shadow: var(--shadow);
}
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 880px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.45;
}
caption {
  text-align: left;
  caption-side: top;
  padding: 18px 18px 0;
  font-weight: 700;
  color: #111;
}
th, td {
  padding: 12px 12px;
  text-align: right;
  border-bottom: 1px solid var(--soft-line);
}
th:first-child, td:first-child { text-align: left; min-width: 220px; }
th { font-weight: 700; color: #111; }
tbody tr:last-child td { border-bottom: 0; }
tr.ours td { background: rgba(0,0,0,0.06); font-weight: 700; }

.bibtex-code {
  padding: 22px;
  background-color: rgba(55,55,55,0.88);
  color: #f5f0e8;
  margin-top: 16px;
  overflow-x: auto;
}
.bibtex-title {
  font-family: var(--mono);
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.bibtex-code pre {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}
.bibtex-code code { font-family: 'Courier New', Courier, monospace; }
button {
  font-family: var(--mono);
  border: 1.5px solid #f5f0e8;
  color: #f5f0e8;
  background: transparent;
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
}
button:hover { background: rgba(255,255,255,0.12); }

.footer {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--soft-line);
  padding-top: 34px;
  margin-top: 80px;
  text-align: center;
}
.footer p { margin: 0 0 12px; }

@media (max-width: 920px) {
  body { padding: 38px 18px; }
  .stats-strip, .four-col, .snapshot-timeline, .two-col { grid-template-columns: 1fr 1fr; }
  .reverse-mobile figure { order: -1; }
  .gallery-video { height: 190px; }
}

@media (max-width: 620px) {
  body { padding: 28px 14px; }
  .hero h1 { font-size: 86px; letter-spacing: -0.08em; }
  .hero h2 { white-space: normal; }
  .hero-copy { font-size: 19px; }
  .quick-links { justify-content: flex-start; gap: 10px 18px; font-size: 15px; }
  .stats-strip, .four-col, .snapshot-timeline, .two-col { grid-template-columns: 1fr; }
  .video-grid, .image-gallery { grid-template-columns: 1fr; }
  .section { font-size: 18px; margin: 54px 0 68px; }
  .pull-quote { font-size: 27px; }
  .snapshot-timeline div { border-left: 0; border-top: 1px solid var(--soft-line); }
  .snapshot-timeline div:first-child { border-top: 0; }
  .gallery-video { height: 160px; }
  .pipeline-card, .dataset-panel { padding: 22px; }
  .stats-strip article { min-height: 118px; }
}