.border {
  border: 1px solid #dee2e6;
}

.border-thick {
  border-width: 3px;
}

a.footnote-ref {
  color: #e83e8c; /* Change to your preferred color */
}



/* Hide KaTeX's screen-reader accessibility tags globally across all frames */
.katex-mathml {
  display: none !important;
}

/* Fallback: Ensure the speaker notes container hides leaked markup strings */
div.speaker-controls-notes .katex-mathml,
div.speaker-controls-notes .copyable-text,
.reveal-notes-window .katex-mathml {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  height: 0 !important;
  position: absolute !important;
}