diff --git a/apps/compliance-portal/src/components/LocaleMismatchCallout.tsx b/apps/compliance-portal/src/components/LocaleMismatchCallout/LocaleMismatchCallout.tsx
similarity index 89%
rename from apps/compliance-portal/src/components/LocaleMismatchCallout.tsx
rename to apps/compliance-portal/src/components/LocaleMismatchCallout/LocaleMismatchCallout.tsx
index 954985928..da5789037 100644
--- a/apps/compliance-portal/src/components/LocaleMismatchCallout.tsx
+++ b/apps/compliance-portal/src/components/LocaleMismatchCallout/LocaleMismatchCallout.tsx
@@ -37,6 +37,7 @@ import { useLocale } from "#/lib/i18n/useLocale";
 import { useUpdateLocale } from "#/lib/i18n/useUpdateLocale";
 
 import type { LocaleMismatchCallout_identity$key } from "./__generated__/LocaleMismatchCallout_identity.graphql";
+import { localeMismatchCallout } from "./variants";
 
 const localeMismatchCalloutFragment = graphql`
   fragment LocaleMismatchCallout_identity on Identity {
@@ -94,6 +95,7 @@ export function LocaleMismatchCallout({ identityKey }: LocaleMismatchCalloutProp
   const urlLabel = URL_LOCALE_LABELS[urlLocale];
   const savedLabel = URL_LOCALE_LABELS[savedLocale];
   const busy = isChanging || isUpdating;
+  const slots = localeMismatchCallout();
 
   const switchToSaved = () => {
     void changeLocale(savedLocale, { persist: false });
@@ -106,13 +108,10 @@ export function LocaleMismatchCallout({ identityKey }: LocaleMismatchCalloutProp
   };
 
   return (
-    <aside
-      className="flex w-full items-center gap-3 bg-gold-3 px-8 py-2.5 max-md:flex-col max-md:items-stretch max-md:gap-3 max-md:px-4 max-md:py-3"
-      role="status"
-    >
-      <div className="flex min-w-0 flex-1 items-start gap-2">
-        <GlobeIcon weight="fill" className="mt-0.5 size-4 shrink-0 text-gold-11" aria-hidden />
-        <Text size={2} color="neutral" highContrast className="min-w-0 flex-1">
+    <aside className={slots.root()} role="status">
+      <div className={slots.content()}>
+        <GlobeIcon weight="fill" className={slots.icon()} aria-hidden />
+        <Text size={2} color="neutral" highContrast className={slots.message()}>
           {t("locale.mismatch.message", { language: urlLabel })}
         </Text>
         <IconButton
@@ -121,19 +120,19 @@ export function LocaleMismatchCallout({ identityKey }: LocaleMismatchCalloutProp
           color="neutral"
           aria-label={t("locale.mismatch.dismiss")}
           disabled={busy}
-          className="md:hidden"
+          className={slots.dismissMobile()}
           onClick={() => setDismissed(true)}
         >
           <XIcon />
         </IconButton>
       </div>
-      <div className="flex shrink-0 items-center gap-2 max-md:flex-col max-md:items-stretch">
+      <div className={slots.actions()}>
         <Button
           size={1}
           variant="solid"
           color="gold"
           disabled={busy}
-          className="max-md:w-full"
+          className={slots.action()}
           onClick={switchToSaved}
         >
           {t("locale.mismatch.switchToMine", {
@@ -149,7 +148,7 @@ export function LocaleMismatchCallout({ identityKey }: LocaleMismatchCalloutProp
           color="neutral"
           highContrast
           disabled={busy}
-          className="max-md:w-full"
+          className={slots.action()}
           onClick={adoptUrlLocale}
         >
           {t("locale.mismatch.useThis", { language: urlLabel })}
@@ -160,7 +159,7 @@ export function LocaleMismatchCallout({ identityKey }: LocaleMismatchCalloutProp
           color="neutral"
           aria-label={t("locale.mismatch.dismiss")}
           disabled={busy}
-          className="max-md:hidden"
+          className={slots.dismissDesktop()}
           onClick={() => setDismissed(true)}
         >
           <XIcon />
diff --git a/apps/compliance-portal/src/components/LocaleMismatchCallout/variants.ts b/apps/compliance-portal/src/components/LocaleMismatchCallout/variants.ts
new file mode 100644
index 000000000..21a4e92db
--- /dev/null
+++ b/apps/compliance-portal/src/components/LocaleMismatchCallout/variants.ts
@@ -0,0 +1,36 @@
+// Copyright (c) 2026 Probo Inc <hello@probo.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+import { tv } from "tailwind-variants/lite";
+
+// Full-bleed locale-mismatch banner under the TopBar: message row + actions,
+// stacking on small screens.
+export const localeMismatchCallout = tv({
+  slots: {
+    root: "flex w-full items-center gap-3 bg-gold-3 px-8 py-2.5 max-md:flex-col max-md:items-stretch max-md:gap-3 max-md:px-4 max-md:py-3",
+    content: "flex min-w-0 flex-1 items-start gap-2",
+    icon: "mt-0.5 size-4 shrink-0 text-gold-11",
+    message: "min-w-0 flex-1",
+    dismissMobile: "md:hidden",
+    actions: "flex shrink-0 items-center gap-2 max-md:flex-col max-md:items-stretch",
+    action: "max-md:w-full",
+    dismissDesktop: "max-md:hidden",
+  },
+});
diff --git a/apps/compliance-portal/src/components/UnsignedNDACallout/variants.ts b/apps/compliance-portal/src/components/UnsignedNDACallout/variants.ts
index 77189dc9b..d51a0dfb6 100644
--- a/apps/compliance-portal/src/components/UnsignedNDACallout/variants.ts
+++ b/apps/compliance-portal/src/components/UnsignedNDACallout/variants.ts
@@ -21,7 +21,7 @@
 import { tv } from "tailwind-variants/lite";
 
 // Full-bleed unsigned-NDA banner under the TopBar: message row + CTA/dismiss,
-// stacking on small screens like LocaleMismatchCallout.
+// stacking on small screens like the locale-mismatch callout.
 export const unsignedNDACallout = tv({
   slots: {
     root: "flex w-full items-center gap-3 bg-gold-3 px-8 py-2.5 max-md:flex-col max-md:items-stretch max-md:gap-3 max-md:px-4 max-md:py-3",
diff --git a/apps/compliance-portal/src/pages/MainLayout.tsx b/apps/compliance-portal/src/pages/MainLayout.tsx
index 763d617f9..1708cd686 100644
--- a/apps/compliance-portal/src/pages/MainLayout.tsx
+++ b/apps/compliance-portal/src/pages/MainLayout.tsx
@@ -23,7 +23,7 @@ import type { PreloadedQuery } from "react-relay";
 import { graphql, usePreloadedQuery } from "react-relay";
 import { Outlet, useMatch } from "react-router";
 
-import { LocaleMismatchCallout } from "#/components/LocaleMismatchCallout";
+import { LocaleMismatchCallout } from "#/components/LocaleMismatchCallout/LocaleMismatchCallout";
 import { PoweredBy } from "#/components/PoweredBy/PoweredBy";
 import { TopBar } from "#/components/TopBar/TopBar";
 import { UnsignedNDACallout } from "#/components/UnsignedNDACallout/UnsignedNDACallout";