diff --git a/content/keyboard.js b/content/keyboard.js
index b3f3fa3..9728c11 100644
--- a/content/keyboard.js
+++ b/content/keyboard.js
@@ -87,6 +87,9 @@ window.OutlookRelook.Keyboard = (function () {
       var idx = findItemById(items, id);
       if (idx >= 0) {
         items[idx].classList.add('or-kb-selected');
+        console.log('[Outlook Relook] Applied or-kb-selected to', id.substring(0, 20), 'hasClass:', items[idx].classList.contains('or-kb-selected'));
+      } else {
+        console.log('[Outlook Relook] Could not find item for selected id:', id.substring(0, 20));
       }
     });
 
diff --git a/themes/base.css b/themes/base.css
index 432689f..053e8e6 100644
--- a/themes/base.css
+++ b/themes/base.css
@@ -403,32 +403,32 @@ html[data-or-unified-header="true"] .fui-Toolbar ~ div {
    KEYBOARD NAVIGATION
    ============================================================ */
 
-/* Focus cursor — the message the keyboard is currently pointing at */
-.or-kb-focused {
+/* Focus cursor — the message the keyboard is currently pointing at.
+   High specificity to beat theme selectors. */
+html[data-outlook-relook-scheme] [role="option"].or-kb-focused,
+html[data-outlook-relook-scheme] [role="listitem"].or-kb-focused,
+html .or-kb-focused {
   outline: 2px solid var(--or-accent, #0078d4) !important;
   outline-offset: -2px;
   position: relative;
   z-index: 1;
 }
 
-/* Selected/checked messages */
-.or-kb-selected {
-  background-color: rgba(0, 120, 212, 0.08) !important;
+/* Selected/checked messages — high specificity + strong visual */
+html[data-outlook-relook-scheme] [role="option"].or-kb-selected,
+html[data-outlook-relook-scheme] [role="listitem"].or-kb-selected,
+html[data-outlook-relook-scheme="light"] [role="option"].or-kb-selected,
+html[data-outlook-relook-scheme="light"] [role="listitem"].or-kb-selected,
+html .or-kb-selected {
+  background-color: rgba(0, 120, 212, 0.12) !important;
+  border-left: 3px solid var(--or-accent, #0078d4) !important;
+  position: relative;
 }
 
-html[data-outlook-relook-scheme="dark"] .or-kb-selected {
-  background-color: rgba(100, 181, 246, 0.12) !important;
-}
-
-/* Selection indicator — small left bar */
-.or-kb-selected::before {
-  content: '';
-  position: absolute;
-  left: 0;
-  top: 0;
-  bottom: 0;
-  width: 3px;
-  background: var(--or-accent, #0078d4);
+html[data-outlook-relook-scheme="dark"] [role="option"].or-kb-selected,
+html[data-outlook-relook-scheme="dark"] [role="listitem"].or-kb-selected {
+  background-color: rgba(100, 181, 246, 0.18) !important;
+  border-left: 3px solid var(--or-accent, #64b5f6) !important;
 }
 
 /* Selection count badge (injected by keyboard.js) */