diff --git a/packages/ui/src/styles/messaging/prompt-input.css b/packages/ui/src/styles/messaging/prompt-input.css
index f737d006..8cfc8e63 100644
--- a/packages/ui/src/styles/messaging/prompt-input.css
+++ b/packages/ui/src/styles/messaging/prompt-input.css
@@ -36,8 +36,8 @@
 
 .prompt-input {
   @apply w-full pt-2.5 border text-sm resize-none outline-none transition-colors;
-  padding-inline-start: 2.5rem;
-  padding-inline-end: 0.75rem;
+  padding-inline-start: 0.75rem;
+  padding-inline-end: 2.5rem;
   font-family: inherit;
   background-color: var(--surface-base);
   color: var(--text-primary);
@@ -83,13 +83,11 @@
   color: var(--text-primary);
 }
 
-/* Navigation buttons container (expand, prev, next).
-   Intentionally at inline-start (left in LTR, right in RTL) so buttons never overlap
-   the scrollbar, which browsers always place at inline-end. */
+/* Navigation buttons container (expand, prev, next). */
 .prompt-nav-buttons {
   position: absolute;
   top: 0.25rem;
-  inset-inline-start: 0.25rem;
+  inset-inline-end: 0.25rem;
   bottom: 0.25rem;
   display: flex;
   flex-direction: column;
@@ -379,7 +377,7 @@
   .prompt-input {
     min-height: 0;
     padding: 0.5rem 0.75rem;
-    padding-inline-start: 2.5rem; /* preserve space for nav buttons */
+    padding-inline-end: 2.5rem;
     padding-bottom: 0.75rem;
   }