:root {
  --accent: #2b6cb0;
  --accent-soft: #ebf3fb;
  --left: #66CCBE;
  --right: #E27E97;
  --ink: #1a1a2e;
  /* site title gradient: teal -> light periwinkle -> soft pink */
  --title-grad: linear-gradient(90deg, #5FD3CE 0%, #8FC3EC 28%, #B9BEE6 55%, #E9A9C6 80%, #F0A8C2 100%);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans', 'Google Sans', -apple-system, sans-serif;
  color: var(--ink);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, #f7fafc 0%, #eef2f7 100%);
  border-bottom: 1px solid #e2e8f0;
  padding-top: 2.5rem;
}
.eyebrow {
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: .6rem !important;
}
.publication-title {
  font-family: 'Castoro', 'Google Sans', serif;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: var(--title-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.publication-subtitle {
  color: #4a5568 !important;
  font-weight: 500;
  margin-top: .4rem;
  margin-bottom: 0;   /* gap to venue is controlled by .venue-badge margin */
}
.venue-badge {
  font-size: 2rem;            /* same as the .is-3 subtitle */
  font-weight: 600;
  line-height: 1.2;
  margin: 1rem 0;            /* equal gap above (title) and below (authors) */
  background: var(--title-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.publication-authors { margin-top: 0; line-height: 1.7; }
.author-block {
  font-weight: 600;
  display: inline-block;
  margin-right: .35rem;
}
.author-block sup { color: var(--accent); font-weight: 700; }
.publication-affiliations {
  color: #718096;
  margin-top: .6rem;
  line-height: 1.6;
}
.publication-affiliations span { display: inline-block; }
.publication-affiliations sup { color: var(--accent); }

.publication-links { margin-top: 1.8rem; }
.publication-links .button {
  margin: .25rem;
  background: var(--ink);
  border: none;
  transition: transform .15s ease, background .15s ease;
}
.publication-links .button:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

/* ---------- Figures ---------- */
.image img {
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0,0,0,.10);
}
.caption {
  margin-top: 1rem;
  font-size: .92rem;
  color: #4a5568;
  text-align: justify;
  line-height: 1.55;
}

/* ---------- Section titles ---------- */
.section .title.is-3 {
  position: relative;
  padding-bottom: .6rem;
  margin-bottom: 1.8rem;
}
.section .title.is-3.has-text-centered::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin: .7rem auto 0;
  border-radius: 2px;
  background: var(--title-grad);
}

/* ---------- Contributions ---------- */
.contrib-box {
  height: 100%;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(0,0,0,.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.contrib-box:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 26px rgba(0,0,0,.10);
}
.contrib-icon { color: var(--accent); margin-bottom: .5rem; }

/* ---------- Video comparison ---------- */
.task-block { margin-bottom: 2.6rem; }
.task-title {
  text-align: center;
  margin-bottom: 1rem !important;
  color: var(--ink);
}
.vid-label {
  text-align: center;
  font-weight: 700;
  letter-spacing: .02em;
  padding: .35rem 0;
  margin-bottom: .6rem;
  border-radius: 8px;
  color: #fff;
}
.vid-label.baseline { background: #8a94a6; }
.vid-label.ours { background: var(--title-grad); color: var(--ink); }
.compare-video {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0,0,0,.10);
  background: #000;
  display: block;
}
.baseline-tag { background: #8a94a6; color: #fff; font-weight: 600; }
.ours-tag {
  background: var(--title-grad);
  color: var(--ink); font-weight: 600;
}

/* ---------- Video placeholder ---------- */
.video-placeholder {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 10px;
  background: repeating-linear-gradient(45deg, #f0f4f8, #f0f4f8 12px, #e8eef4 12px, #e8eef4 24px);
  border: 2px dashed #c5d2e0;
}
.video-placeholder-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #7a8aa0;
  gap: .5rem;
}
.video-placeholder-inner p { font-weight: 600; margin: 0; }
.column video {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0,0,0,.10);
}

/* ---------- Tables ---------- */
.results-table { font-size: .9rem; }
.results-table th { text-align: center; vertical-align: middle; }
.results-table td { text-align: center; vertical-align: middle; }
.results-table td:first-child,
.results-table th:first-child { text-align: left; }
.group-header {
  background: var(--ink);
  color: #fff !important;
  text-align: center !important;
  letter-spacing: .03em;
}
.left-task { background: rgba(102, 204, 190, .18); text-align: center !important; }
.right-task { background: rgba(226, 126, 151, .18); text-align: center !important; }
.results-table tr.ours {
  background: #fff7e6;
  font-weight: 600;
}
.results-table tr.ours td { border-top: 2px solid #f0c36d; }

/* ---------- BibTeX ---------- */
.bibtex {
  background: #1a1a2e;
  color: #e6edf3;
  border-radius: 10px;
  padding: 1.3rem 1.5rem;
  overflow-x: auto;
}
.bibtex code { color: #e6edf3; background: transparent; }

/* ---------- Footer ---------- */
.footer { background: #f7fafc; padding: 2rem 1.5rem; }

@media (max-width: 768px) {
  .publication-title { font-size: 2.1rem; }
  .publication-subtitle { font-size: 1.2rem; }
}