/*
  Overlay elements must be positioned in the slide coordinate space.
  If we position them relative to `.reveal .slides` (which can be viewport-sized),
  they will drift when Reveal centers the slide on large viewports.
  We therefore mount overlays into a per-slide overlay layer.
*/

.reveal .slides section > .deck-overlay-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 20;
}

.slide-fixed-text,
.slide-page-counter {
  position: absolute;
  z-index: 999;
  pointer-events: none;
}

.slide-fixed-text {
  white-space: pre-line;
  width: max-content;
  max-width: 100%;
}

.slide-page-counter {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  width: max-content;
  max-width: 100%;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.slide-page-counter-current,
.slide-page-counter-total {
  display: block;
}

/* revealjs の組み込み番号は使わず、独自オーバーレイに統一する */
.reveal .slide-number {
  display: none !important;
}

#title-slide h1.title,
#title-slide p.subtitle,
#title-slide .quarto-title-author-name,
#title-slide .quarto-title-authors,
#title-slide .quarto-title-affiliation,
#title-slide .quarto-title-affiliations {
  z-index: 5;
}


#title-slide .title-slide-author-overlay,
#title-slide .title-slide-affiliation-overlay {
  position: absolute;
  z-index: 6;
  margin: 0;
  padding: 0;
  width: max-content;
  max-width: none;
  white-space: pre-line;
  writing-mode: horizontal-tb;
  text-orientation: mixed;
  direction: ltr;
  text-align: right;
}