/* A compact, theme-aware window into the project; the film supplies the color. */
.research-spotlight {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 4vw, 48px);
  margin: 0 0 44px;
  scroll-margin-top: 90px;
}

.research-spotlight[hidden] { display: none; }

.spotlight-media {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  background: #081116;
}

.spotlight-teaser {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.spotlight-media-caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 28px 60px 14px 17px;
  background: linear-gradient(transparent, rgba(3, 12, 18, 0.75));
  color: #fff;
  font-size: 0.69rem;
  font-weight: 400;
  letter-spacing: 0.045em;
  pointer-events: none;
}

.spotlight-motion {
  position: absolute;
  z-index: 1;
  right: 10px;
  bottom: 8px;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  background: rgba(8, 17, 22, 0.6);
  color: #fff;
  font-size: 0.65rem;
  cursor: pointer;
}

.spotlight-motion[hidden] { display: none; }
.spotlight-motion:hover { background: rgba(8, 17, 22, 0.9); }

.spotlight-copy .about-section-label {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px 12px;
  margin: 0 0 12px;
  font-size: 0.65rem;
}

.spotlight-copy .about-section-label span {
  padding-left: 12px;
  border-left: 1px solid var(--theme-line);
  color: var(--theme-muted);
  font-weight: 400;
  letter-spacing: 0.035em;
  text-transform: none;
}

.research-spotlight h2 {
  margin: 0 0 12px;
  color: var(--theme-text);
  font-family: "Roboto Slab", "Times New Roman", serif;
  font-size: clamp(1.8rem, 3vw, 2.25rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.spotlight-tagline {
  margin: 0 0 9px;
  color: var(--theme-text);
  font-size: 1.03rem;
  font-weight: 400;
  line-height: 1.5;
}

.spotlight-description {
  max-width: 390px;
  margin: 0;
  color: var(--theme-muted);
  font-size: 0.86rem;
  font-weight: 400;
  line-height: 1.65;
}

.spotlight-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 22px;
}

.spotlight-actions a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  color: var(--theme-accent-strong);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
}

.spotlight-project { border-bottom: 1px solid var(--theme-line); }
.spotlight-actions a:hover { color: var(--theme-accent); }
.spotlight-project:hover { border-color: currentColor; }
.spotlight-watch i { font-size: 0.6rem; }
.spotlight-watch span { color: var(--theme-muted); font-size: 0.7rem; font-weight: 400; }

.research-spotlight :focus-visible,
.carbon-film-dialog :focus-visible {
  outline: 3px solid var(--theme-accent);
  outline-offset: 4px;
}

/* Attach the film to its publication without repeating the paper's metadata. */
.publication-card .spotlight-inline {
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  gap: 24px;
  margin: 18px 0 4px;
}

.spotlight-inline .about-section-label,
.spotlight-inline h2 { display: none; }
.spotlight-inline .spotlight-media { border-radius: 9px; }
.spotlight-inline .spotlight-tagline { font-size: 0.98rem; }
.spotlight-inline .spotlight-description { font-size: 0.8rem; }
.spotlight-inline .spotlight-actions { gap: 6px 18px; margin-top: 12px; }
.spotlight-inline .spotlight-actions a { font-size: 0.76rem; }
.spotlight-inline .spotlight-media-caption { font-size: 0.6rem; }
.homepage-publications #carbon-globe { scroll-margin-top: 90px; }

.carbon-film-dialog {
  width: min(960px, calc(100vw - 32px));
  max-width: none;
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  overflow: auto;
  border: 1px solid var(--theme-line);
  border-radius: 12px;
  background: var(--theme-surface);
  color: var(--theme-text);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.carbon-film-dialog::backdrop { background: rgba(4, 10, 16, 0.8); }
.carbon-film-dialog:not([open]) { display: none; }
.carbon-film-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 18px; }
.carbon-film-heading h2 { margin: 0; font-family: inherit; font-size: 1rem; font-weight: 500; }
.carbon-film-close { width: 36px; height: 36px; padding: 0; border: 0; border-radius: 50%; background: var(--theme-surface-soft); color: var(--theme-text); cursor: pointer; }
.carbon-full-film { display: block; width: 100%; max-height: 70dvh; aspect-ratio: 16 / 9; background: #000; }
.carbon-film-dialog > p { margin: 0; padding: 14px 18px; color: var(--theme-muted); font-size: 0.8rem; line-height: 1.6; }
.carbon-film-dialog a { color: var(--theme-accent-strong); text-decoration: underline; text-underline-offset: 3px; }
body.carbon-film-open { overflow: hidden; }

@media (max-width: 767px) {
  .research-spotlight { grid-template-columns: minmax(0, 1fr); gap: 24px; margin-bottom: 34px; scroll-margin-top: 118px; }
  .spotlight-media { max-width: 600px; }
  .spotlight-description { max-width: none; }
  .spotlight-actions { margin-top: 14px; }
  .publication-card .spotlight-inline { grid-template-columns: minmax(0, 1fr); gap: 17px; margin: 16px 0 4px; }
  .homepage-publications #carbon-globe { scroll-margin-top: 118px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}