diff --git a/frontend/src/lib/components/PersonMentionEditor.svelte b/frontend/src/lib/components/PersonMentionEditor.svelte
index 1f82909d..1f25fc80 100644
--- a/frontend/src/lib/components/PersonMentionEditor.svelte
+++ b/frontend/src/lib/components/PersonMentionEditor.svelte
@@ -191,7 +191,7 @@ const popupOpen = $derived(query !== null);
 <div class="relative">
 	<textarea
 		{@attach attachTextarea}
-		class="w-full resize-none border-none bg-transparent font-serif text-base leading-relaxed text-ink outline-none placeholder:text-ink-3"
+		class="block min-h-[44px] w-full resize-none rounded-sm border border-transparent bg-transparent px-1 py-2.5 font-serif text-base leading-relaxed text-ink placeholder:text-ink-3 focus-visible:border-brand-mint focus-visible:ring-2 focus-visible:ring-brand-mint/40 focus-visible:outline-none"
 		rows={rows}
 		placeholder={placeholder}
 		disabled={disabled}