/* Publication page enhancements: filter buttons, selected state, layout */

.selector {
  margin-top: 4px;
  margin-bottom: 8px;
  line-height: 1.8;
}

.selector .button-pdfxx,
.selector .button-pdf {
  margin-right: 4px;
  margin-bottom: 4px;
  border: 2px solid transparent;
  transition: transform 0.08s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

/* Match filter controls to the site's base text size. */
.selector .button-pdfxx,
.selector .button-pdf {
  font-size: var(--site-text-size) !important;
  padding: 1px 5px !important;
  line-height: 1.25;
  font-family: "Linux Libertine", "Linux Libertine O", Georgia, serif !important;
  text-transform: none !important;
}

.selector #ClinicalAI,
.selector #RAG {
  background-color: rgb(4, 49, 94) !important;
}

.selector #XAI,
.selector #HCI {
  background-color: rgb(4, 58, 40) !important;
}

.selector #NLP,
.selector #LowResource {
  background-color: rgb(31, 36, 99) !important;
}

.selector #Forecasting {
  background-color: rgb(3, 58, 80) !important;
}

.selector #Energy {
  background-color: rgb(18, 83, 45) !important;
}

.selector #AppliedML {
  background-color: rgb(42, 34, 96) !important;
}

.selector .button-pdfxx:hover,
.selector .button-pdf:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  opacity: 0.92;
}

.selector .button-pdfxx:active {
  transform: translateY(0);
}

/* Strong visual feedback for the active filter */
.button-pdfxx.selected,
.selector .selected {
  border: 2px solid #ffd700 !important;
  box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.35) !important;
  outline: none;
  transform: translateY(-1px);
  font-weight: 700;
}

#toggleHiddenPapers {
  margin-left: 4px;
}

.hidden-paper {
  opacity: 0.85;
}

.single-paper-f.hidden-paper::before {
  content: "[hidden] ";
  color: #888;
  font-size: 0.85em;
  font-weight: 600;
}

.core-section ol {
  padding-left: 1.5%;
  margin-left: 1.5%;
}

.core-section li + li {
  margin-top: 6px;
}

@media (max-width: 768px) {
  .selector .button-pdfxx,
  .selector .button-pdf {
    margin-bottom: 6px;
  }
}