diff --git a/src/themes/addons/core-dark.css b/src/themes/addons/core-dark.css
index 790b75cef..f7f0dba06 100644
--- a/src/themes/addons/core-dark.css
+++ b/src/themes/addons/core-dark.css
@@ -34,3 +34,11 @@
     border-color: rgba(255, 255, 255, 0.5);
   }
 }
+
+/* Force light mode for iframes in dark theme */
+iframe,
+iframe *,
+iframe[src],
+iframe[src] * {
+  color-scheme: light;
+}
diff --git a/src/themes/shared/_coverpage.css b/src/themes/shared/_coverpage.css
index d6c322dcd..6101d3565 100644
--- a/src/themes/shared/_coverpage.css
+++ b/src/themes/shared/_coverpage.css
@@ -48,6 +48,7 @@
       &:hover {
         text-decoration-color: transparent;
       }
+      color: var(--cover-title-color);
     }
 
     small {
diff --git a/src/themes/shared/_vars.css b/src/themes/shared/_vars.css
index 72ed013e4..d1d97bab0 100644
--- a/src/themes/shared/_vars.css
+++ b/src/themes/shared/_vars.css
@@ -95,7 +95,7 @@
   --callout-charm-translate       : -50% -50%;
   --callout-color                 : ;
   --callout-padding               : 1em 1em 1em var(--callout-charm-size);
-  --code-bg                       : var(--color-mono-1);
+  --code-bg                       : var(--color-mono-2);
   --code-color                    : ;
   --codeblock-bg                  : var(--code-bg);
   --codeblock-color               : var(--code-color);
@@ -199,4 +199,4 @@
   --callout-charm-color  : #fff;
   --callout-charm-content: 'i';
   --callout-color        : ;
-}
\ No newline at end of file
+}