diff --git a/frontend/src/components/Welcome.tsx b/frontend/src/components/Welcome.tsx
index 372d10f9..0671e38d 100644
--- a/frontend/src/components/Welcome.tsx
+++ b/frontend/src/components/Welcome.tsx
@@ -22,6 +22,7 @@ import { api } from "../lib/api";
 import { HttpError } from "../lib/api";
 import { setLanguage, type LangCode } from "../i18n";
 import LanguageSwitcher from "./LanguageSwitcher";
+import { inputCls } from "./ui/form";
 
 const EMAIL_RE = /^[^@\s]+@[^@\s]+\.[^@\s]+$/;
 const PASSWORD_MIN = 10;
@@ -430,8 +431,6 @@ function AuthCard() {
     }
   }
 
-  const inputCls =
-    "w-full bg-surface border border-border rounded-xl px-3 py-2.5 text-sm focus:outline-hidden focus:ring-2 focus:ring-accent/40";
   const titleKey = TITLE_KEY[mode];
 
   return (