/* Styling layered on top of the Nerfies/Bulma template.
   Everything project-specific lives here so the template files stay untouched. */

:root {
  --ink: #1b1f24;
  --muted: #5f6b7a;
  --accent: #1f3a68;
  --accent-dark: #16294a;
  --accent-soft: #eef2f8;
  --line: #e5e9f0;
  --bg-alt: #f7f8fa;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--ink);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* ---------- hero ---------- */

.hero {
  background: linear-gradient(180deg, #f6f8fb 0%, #ffffff 100%);
}

.hero .hero-body {
  padding-top: 3rem;
}

.publication-title {
  line-height: 1.16;
  letter-spacing: -0.015em;
}

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

.publication-authors a {
  color: var(--accent) !important;
}

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

.emails {
  color: var(--muted);
  font-size: 0.95rem;
  word-break: break-word;
}

.logos {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin: 1.4rem 0 0.3rem;
}

/* The UVA logo is a JPEG with a baked-in white background, so it would sit in a
   white box on the tinted hero. Multiply drops that white into the backdrop and
   leaves the transparent Penn PNG untouched. */
.logos img {
  height: 58px;
  mix-blend-mode: multiply;
}

/* The Penn mark is drawn heavier than the UVA one, so matching their ink
   heights makes Penn look larger. Three quarters reads as equal. */
.logos img.penn {
  height: 43.5px;
}

/* ---------- link buttons ---------- */

.publication-links .button.is-dark {
  background: var(--accent);
  border-color: transparent;
  font-weight: 500;
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.publication-links .button.is-dark:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(31, 58, 104, 0.22);
}

/* ---------- sections ---------- */

section.alt {
  background: var(--bg-alt);
}

.section .title.is-3 {
  position: relative;
  padding-bottom: 0.7rem;
  margin-bottom: 1.7rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.section .title.is-3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 54px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
}

.section .title.is-4 {
  border-left: 4px solid var(--accent);
  padding-left: 0.65rem;
  margin-bottom: 0.9rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* Map name above a video grid. */
.section .title.is-5 {
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 0.7rem;
}

/* Keep the line length readable even under a full-width figure. */
.prose {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

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

/* ---------- figures ---------- */

figure.fig {
  margin: 0;
}

figure.fig img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 10px 26px rgba(16, 24, 40, 0.06);
}

figure.fig figcaption {
  max-width: 780px;
  margin: 1rem auto 0;
  text-align: left;
  font-size: 0.95rem;
  color: var(--muted);
}

figure.fig figcaption b {
  color: var(--ink);
}

/* ---------- video grids ---------- */

.vgrid-scroll {
  overflow-x: auto;
  padding-bottom: 0.3rem;
}

.vgrid {
  display: grid;
  gap: 0.55rem 0.8rem;
  align-items: center;
}

/* Column heads carry the partner, row labels carry the method. */
.vgrid .head {
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.35;
}

.vgrid .head span {
  display: block;
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--muted);
}

.vgrid .row-label {
  text-align: left;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.4;
}

.vgrid .row-label.ours {
  color: var(--accent);
}

.vcell {
  border-radius: 10px;
  padding: 0.4rem;
}

.vcell.ours {
  background: var(--accent-soft);
}

.vcell video {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
}

.vcell .score {
  margin-top: 0.35rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.vcell.ours .score {
  color: var(--accent);
  font-weight: 600;
}

/* ---------- bibtex ---------- */

#BibTeX pre {
  background: #0f172a;
  border-radius: 10px;
  padding: 1.1rem 1.2rem;
  overflow-x: auto;
}

#BibTeX pre code {
  background: transparent;
  color: #e2e8f0;
  padding: 0;
  font-size: 0.88rem;
  line-height: 1.6;
}

/* ---------- footer ---------- */

.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.footer a {
  color: var(--accent);
}

@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .logos {
    gap: 1.5rem;
  }

  .logos img {
    height: 44px;
  }

  .logos img.penn {
    height: 33px;
  }
}