:root {
  --ink: #111418;
  --muted: #606a76;
  --line: #dce1e6;
  --accent: #087f86;
  --accent-dark: #056269;
  --maroon: #500000;
  --paper: #ffffff;
  --soft: #f6f8f9;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: 3px; }
button { font: inherit; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: .6rem .9rem;
  color: #fff;
  background: var(--ink);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.project-hero {
  max-width: 1040px;
  margin: 0 auto;
  padding: 5.2rem 24px 4.2rem;
  text-align: center;
}
.venue {
  margin: 0 0 1.2rem;
  color: var(--maroon);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.project-hero h1 {
  margin: 0;
  color: var(--accent-dark);
  font-size: clamp(3.8rem, 9vw, 6.7rem);
  font-weight: 820;
  letter-spacing: -.065em;
  line-height: .9;
}
.subtitle {
  max-width: 950px;
  margin: 1.25rem auto .7rem;
  font-size: clamp(1.55rem, 3.6vw, 2.55rem);
  font-weight: 720;
  letter-spacing: -.04em;
  line-height: 1.14;
}
.tagline {
  max-width: 760px;
  margin: 1rem auto 1.65rem;
  color: var(--muted);
  font-size: 1.08rem;
}
.authors {
  display: flex;
  justify-content: center;
  gap: 1.6rem;
  flex-wrap: wrap;
  font-size: 1.08rem;
  font-weight: 700;
}
.authors a { color: var(--accent-dark); }
.affiliation { margin: .35rem 0 1.55rem; color: var(--muted); }

.project-links {
  display: flex;
  justify-content: center;
  gap: 1.4rem;
  flex-wrap: wrap;
}
.project-links a {
  display: grid;
  min-width: 72px;
  gap: .42rem;
  justify-items: center;
  color: #27313d;
  font-size: .76rem;
  font-weight: 750;
  text-decoration: none;
}
.resource-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border-radius: 50%;
  transition: transform .16s ease, background .16s ease;
}
.resource-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.resource-icon svg.filled { fill: currentColor; stroke: none; }
.project-links a:hover .resource-icon,
.project-links a:focus-visible .resource-icon {
  background: var(--accent);
  transform: translateY(-2px);
}

.page-section {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 5rem 0;
  border-top: 1px solid var(--line);
}
.section-heading { max-width: 780px; margin-bottom: 2.7rem; }
.section-heading.centered { margin-right: auto; margin-left: auto; text-align: center; }
.eyebrow {
  margin: 0 0 .55rem;
  color: var(--accent);
  font-size: .76rem;
  font-weight: 850;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4.3vw, 3.15rem);
  letter-spacing: -.048em;
  line-height: 1.08;
}
.section-heading > p:last-child:not(.eyebrow) {
  margin: 1rem 0 0;
  color: var(--muted);
}
.section-heading.centered > p:last-child { margin-right: auto; margin-left: auto; }

.dataset-block + .dataset-block { margin-top: 4rem; }
.dataset-heading {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: .65rem;
  border-bottom: 1px solid var(--line);
}
.dataset-heading h3 { margin: 0; font-size: 1.35rem; letter-spacing: -.025em; }
.dataset-heading p { margin: 0; color: var(--muted); font-size: .88rem; }
.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.7rem;
}
.result-item { margin: 0; min-width: 0; }
.result-item video {
  width: 100%;
  aspect-ratio: 50 / 31;
  object-fit: contain;
  background: #050505;
}
.result-item figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: .65rem;
  color: var(--muted);
  font-size: .82rem;
}
.result-item figcaption strong { color: var(--ink); }

.abstract {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: clamp(3rem, 8vw, 7rem);
}
.abstract-copy { font-size: 1.03rem; }
.abstract-copy p:first-child { margin-top: 0; }
.abstract-copy p:last-child { margin-bottom: 0; }

.method-figure { margin: 0; }
.zoom-image {
  display: block;
  width: 100%;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: zoom-in;
}
.zoom-image img { width: 100%; }
.method-figure figcaption {
  margin: .75rem 0 0;
  color: var(--muted);
  font-size: .83rem;
  text-align: center;
}

.compare-tabs {
  display: flex;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
}
.compare-tabs button {
  padding: .5rem .95rem;
  color: #27313d;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  font-size: .82rem;
  font-weight: 700;
}
.compare-tabs button[aria-selected="true"] {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}
.compare-slider {
  position: relative;
  width: min(100%, 560px);
  margin: 0 auto;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #050505;
  user-select: none;
}
.compare-slider img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.compare-top { clip-path: inset(0 0 0 var(--split)); }
.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split);
  width: 2px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, .25);
  transform: translateX(-1px);
  pointer-events: none;
}
.compare-handle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 34px;
  height: 34px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .35);
  transform: translate(-50%, -50%);
}
.compare-label {
  position: absolute;
  top: 12px;
  padding: .25rem .55rem;
  color: #fff;
  background: rgba(10, 16, 22, .72);
  font-size: .74rem;
  font-weight: 750;
  pointer-events: none;
}
.compare-label.left { left: 12px; }
.compare-label.right { right: 12px; }
.compare-slider input[type="range"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

.wide-figure { margin: 0; }
.wide-figure + .wide-figure { margin-top: 3rem; }
.wide-figure figcaption {
  margin: .75rem 0 0;
  color: var(--muted);
  font-size: .83rem;
  text-align: center;
}
.more-results { margin-top: 2.4rem; }
.more-results summary {
  width: max-content;
  margin: 0 auto 1.4rem;
  color: var(--accent-dark);
  cursor: pointer;
  font-weight: 750;
}

.table-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.7rem;
}
.table-card { min-width: 0; overflow-x: auto; }
.table-card h3 {
  margin: 0 0 .7rem;
  font-size: 1.15rem;
  letter-spacing: -.02em;
}
.table-card h3 span {
  margin-left: .45rem;
  color: var(--muted);
  font-size: .82rem;
  font-weight: 500;
}
.table-card table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  font-variant-numeric: tabular-nums;
}
.table-card th, .table-card td {
  padding: .55rem .7rem;
  border-bottom: 1px solid var(--line);
  text-align: right;
}
.table-card th:first-child, .table-card td:first-child { text-align: left; }
.table-card thead th {
  color: var(--muted);
  border-bottom: 2px solid var(--ink);
  font-size: .78rem;
  font-weight: 750;
}
.table-card tr.ours td { background: #eaf5f5; font-weight: 700; }
.table-note {
  max-width: 820px;
  margin: 1.4rem auto 2.6rem;
  color: var(--muted);
  font-size: .82rem;
  text-align: center;
}
.table-card.ablation { max-width: 720px; margin: 0 auto; }

.citation {
  display: grid;
  grid-template-columns: .36fr .64fr;
  gap: clamp(2rem, 7vw, 6rem);
}
.citation-body { position: relative; min-width: 0; }
.citation pre {
  margin: 0;
  padding: 1.3rem;
  overflow-x: auto;
  color: #28313c;
  background: var(--soft);
  border-left: 3px solid var(--accent);
  font-size: .78rem;
  line-height: 1.55;
  white-space: pre;
}
.copy-button {
  margin-top: .8rem;
  padding: .55rem .85rem;
  color: #fff;
  background: var(--ink);
  border: 0;
  cursor: pointer;
  font-size: .78rem;
  font-weight: 750;
}
.copy-button:hover, .copy-button:focus-visible { background: var(--accent-dark); }

footer {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 1.8rem 0 2.8rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: .78rem;
  text-align: center;
}
footer p { margin: 0; }

.lightbox {
  width: min(95vw, 1500px);
  max-width: none;
  padding: 42px 18px 18px;
  background: #fff;
  border: 0;
}
.lightbox::backdrop { background: rgba(10, 16, 22, .82); }
.lightbox img { width: 100%; max-height: 84vh; object-fit: contain; }
.lightbox-close {
  position: absolute;
  top: 6px;
  right: 12px;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  font-size: 2rem;
  cursor: pointer;
}

@media (max-width: 760px) {
  .project-hero { padding-top: 3.7rem; padding-bottom: 3.3rem; }
  .page-section { width: min(100% - 32px, var(--max)); padding: 3.5rem 0; }
  .result-grid, .abstract, .citation, .table-grid { grid-template-columns: 1fr; }
  .dataset-block + .dataset-block { margin-top: 3rem; }
  .dataset-heading { align-items: flex-start; flex-direction: column; gap: .15rem; }
  .section-heading { margin-bottom: 2rem; }
  .result-item figcaption { align-items: flex-start; flex-direction: column; gap: .1rem; }
  footer { width: calc(100% - 32px); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .resource-icon { transition: none; }
}