/* ── Back-to-top button ───────────────────────────── */
#myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  border: none;
  outline: none;
  background-color: deepskyblue;
  color: white;
  cursor: pointer;
  padding: 15px;
  border-radius: 10px;
  font-size: 18px;
}

#myBtn:hover {
  background-color: #0077aa;
}

/* ── Global font ──────────────────────────────────── */
body, .navbar, .button, .title, .subtitle, p, a {
  font-family: 'Google Sans', 'Noto Sans', sans-serif;
}

/* ── Publication header typography ───────────────── */
.publication-title {
  font-family: 'Google Sans', 'Noto Sans', sans-serif;
}

.publication-authors {
  font-family: 'Google Sans', 'Noto Sans', sans-serif;
}

.publication-venue {
  font-family: 'Google Sans', 'Noto Sans', sans-serif;
}

.publication-authors a {
  color: hsl(204, 86%, 53%);
}

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

/* ── Video containers ─────────────────────────────── */
.publication-video {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
}

.publication-video iframe {
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ── Interactive viewer (iframe) ──────────────────── */
.viewer-frame {
  border: 2px solid #ccc;
  border-radius: 8px;
  background: white;
  overflow: hidden;
  line-height: 0; /* no gap under iframe */
}

.results-carousel {
  overflow: hidden;
}

.results-carousel .item {
  margin: 5px;
  overflow: hidden;
  border: 1px solid #bbb;
  border-radius: 10px;
}

#viewer-iframe {
  display: block;
  width: 100%;
  height: 70vh;
  border: none;
}

/* ── Thumbnail gallery ────────────────────────────── */
.thumbnail-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 12px;
}

.thumbnail-gallery .thumb-item {
  cursor: pointer;
  border: 3px solid transparent;
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.2s;
  width: 80px;
  height: 80px;
  flex-shrink: 0;
}

.thumbnail-gallery .thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.thumbnail-gallery .thumb-item.is-active,
.thumbnail-gallery .thumb-item:hover {
  border-color: deepskyblue;
}

/* ── Method figure ────────────────────────────────── */
.method-figure {
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
}

/* ── Footer ───────────────────────────────────────── */
.site-footer {
  background-color: #f5f5f5;
  padding-top: 2rem;
  padding-bottom: 2rem;
  margin: 0;
}

.site-footer p {
  margin: 0;
}

.site-footer .icon-link {
  font-size: 25px;
  color: #000;
}

.link-block a {
  margin-top: 5px;
  margin-bottom: 5px;
}

/* Tighter gap between publication links and teaser */
section.hero:not(.teaser) .hero-body {
  padding-bottom: 0.75rem;
}

.hero.teaser .hero-body {
  padding-top: 0.75rem;
}