diff --git a/src/ClaudeDo.Ui/Views/Islands/DetailsIslandView.axaml b/src/ClaudeDo.Ui/Views/Islands/DetailsIslandView.axaml
index 35b3337..a920347 100644
--- a/src/ClaudeDo.Ui/Views/Islands/DetailsIslandView.axaml
+++ b/src/ClaudeDo.Ui/Views/Islands/DetailsIslandView.axaml
@@ -139,9 +139,9 @@
                         HorizontalAlignment="Stretch"/>
             </StackPanel>
             <StackPanel Orientation="Horizontal" Spacing="8">
-              <Button Content="Review combined diff"
+              <Button Classes="btn" Content="Review combined diff"
                       Command="{Binding ReviewCombinedDiffCommand}"/>
-              <Button Content="Merge all subtasks"
+              <Button Classes="btn" Content="Merge all subtasks"
                       IsEnabled="{Binding CanMergeAll}"
                       Command="{Binding MergeAllCommand}"
                       ToolTip.Tip="{Binding MergeAllDisabledReason}"/>