diff --git a/inst/reveal.js-5.2.1/css/theme/source/ids.scss b/inst/reveal.js-5.2.1/css/theme/source/ids.scss
index 7daee42..d121a90 100644
--- a/inst/reveal.js-5.2.1/css/theme/source/ids.scss
+++ b/inst/reveal.js-5.2.1/css/theme/source/ids.scss
@@ -1003,6 +1003,125 @@
 
 
 /*********************************************
+ * SPEAKER NOTES OVERLAY (touch devices)
+ *********************************************/
+#ids-notes {
+  display: none;
+  position: fixed;
+  left: 70px;
+  bottom: 6%;
+  z-index: 30;
+  width: 28px;
+  height: 28px;
+  border: 0;
+  padding: 0;
+  cursor: pointer;
+  opacity: 0.55;
+  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23aaaaaa' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E") center/contain no-repeat;
+}
+
+#ids-notes:active, #ids-notes:focus-visible {
+  opacity: 0.9;
+}
+
+#ids-notes.is-open {
+  opacity: 0.9;
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f6a800' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E");
+}
+
+#ids-transcript-btn {
+  display: none;
+  position: fixed;
+  left: 110px;
+  bottom: 6%;
+  z-index: 30;
+  width: 28px;
+  height: 28px;
+  border: 0;
+  padding: 0;
+  cursor: pointer;
+  opacity: 0.55;
+  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23aaaaaa' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='8' y1='6' x2='21' y2='6'/%3E%3Cline x1='8' y1='12' x2='21' y2='12'/%3E%3Cline x1='8' y1='18' x2='21' y2='18'/%3E%3Cline x1='3' y1='6' x2='3.01' y2='6'/%3E%3Cline x1='3' y1='12' x2='3.01' y2='12'/%3E%3Cline x1='3' y1='18' x2='3.01' y2='18'/%3E%3C/svg%3E") center/contain no-repeat;
+}
+
+#ids-transcript-btn:active, #ids-transcript-btn:focus-visible, #ids-transcript-btn.is-open {
+  opacity: 0.9;
+}
+
+#ids-transcript-btn.is-open {
+  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f6a800' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='8' y1='6' x2='21' y2='6'/%3E%3Cline x1='8' y1='12' x2='21' y2='12'/%3E%3Cline x1='8' y1='18' x2='21' y2='18'/%3E%3Cline x1='3' y1='6' x2='3.01' y2='6'/%3E%3Cline x1='3' y1='12' x2='3.01' y2='12'/%3E%3Cline x1='3' y1='18' x2='3.01' y2='18'/%3E%3C/svg%3E");
+}
+
+@media (hover: none) and (pointer: coarse) {
+  #ids-notes, #ids-transcript-btn {
+    display: block;
+  }
+}
+
+html.reveal-print #ids-notes, html.reveal-print #ids-transcript-btn {
+  display: none !important;
+}
+
+#ids-notes-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: 100;
+  background: #fff;
+  color: #444444;
+  font-family: "Fira Sans", "Fira Sans Condensed", sans-serif;
+  overflow-y: auto;
+  -webkit-overflow-scrolling: touch;
+  padding: max(24px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right))
+           max(24px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
+}
+
+#ids-notes-overlay[hidden] {
+  display: none;
+}
+
+#ids-notes-header {
+  display: flex;
+  align-items: baseline;
+  gap: 12px;
+  border-bottom: 1px solid #e0e0e0;
+  margin-bottom: 16px;
+  padding-bottom: 8px;
+}
+
+#ids-notes-timing {
+  flex-shrink: 0;
+  color: #f6a800;
+  font-weight: bold;
+  white-space: nowrap;
+}
+
+#ids-notes-title {
+  flex-grow: 1;
+  margin: 0;
+  font-size: 1.1em;
+}
+
+#ids-notes-close {
+  flex-shrink: 0;
+  border: 0;
+  background: none;
+  color: #888888;
+  font-size: 1.2em;
+  cursor: pointer;
+  padding: 8px;
+  margin: -8px;
+}
+
+#ids-notes-content {
+  font-size: 20px;
+  line-height: 1.5;
+}
+
+#ids-notes-content em {
+  color: #888888;
+}
+
+/*********************************************
  * OVERVIEW / TOC SLIDES
  *********************************************/
 /* Entries stay at the normal slide body size and keep the theme's link
@@ -1035,3 +1154,59 @@
 .reveal .ids-overview-toc ul li {
   margin: 0.18em 0;
 }
+
+/*********************************************
+ * TRANSCRIPT / READ-ALOUD VIEW ('r')
+ *********************************************/
+#ids-transcript {
+  position: fixed;
+  inset: 0;
+  z-index: 90;
+  background: #fff;
+  color: #444444;
+  font-family: "Fira Sans", "Fira Sans Condensed", sans-serif;
+  font-size: 18px;
+  line-height: 1.5;
+  overflow-y: auto;
+  -webkit-overflow-scrolling: touch;
+  padding: max(32px, env(safe-area-inset-top)) max(40px, env(safe-area-inset-right))
+           max(32px, env(safe-area-inset-bottom)) max(40px, env(safe-area-inset-left));
+}
+
+#ids-transcript[hidden] {
+  display: none;
+}
+
+#ids-transcript .ids-transcript-slide {
+  max-width: 900px;
+  margin: 0 auto 2.5em auto;
+}
+
+#ids-transcript h1, #ids-transcript h2 {
+  color: var(--r-heading-color);
+  margin: 0 0 0.4em 0;
+}
+
+#ids-transcript h1 { font-size: 1.4em; }
+
+#ids-transcript h2 { font-size: 1.2em; }
+
+#ids-transcript .fragment {
+  opacity: 1;
+  visibility: visible;
+}
+
+#ids-transcript .ids-transcript-notes {
+  border-left: 3px solid #f6a800;
+  padding: 0.2em 0 0.2em 0.8em;
+  margin-top: 0.8em;
+  color: #666;
+}
+
+#ids-transcript .ids-transcript-notes:empty {
+  display: none;
+}
+
+#ids-transcript img, #ids-transcript video, #ids-transcript iframe {
+  max-width: 100%;
+}