/* webR/quarto-live UI niceties.
   Gentle fade-in when a live cell's output (re)appears — a visual cue that it
   has just recomputed (e.g. after moving a slider). Best-effort: relies on
   quarto-live replacing the output element on each evaluation. */
.cell-output-webr,
.exercise-cell-output {
  animation: ql-output-update 0.45s ease;
}

@keyframes ql-output-update {
  from { opacity: 0.4; }
  to   { opacity: 1; }
}

/* Caption used under the interactive sliders to set expectations. */
.webr-slider-note {
  font-size: 0.85em;
  font-style: italic;
  color: #6c757d;
  margin-top: -0.25rem;
}