diff --git a/routes/web.php b/routes/web.php
index 1707ff4..6b296a7 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -137,15 +137,22 @@ Route::match(['get', 'post'], '/locale/{lang}', function (Request $request, stri
         abort(404);
     }
     $request->session()->put('locale', $lang);
-    $request->session()->save();   // force write to session store before redirecting
+    $request->session()->save();
     if ($u = $request->user()) {
         $u->forceFill(['locale' => $lang])->saveQuietly();
     }
-    // Prefer explicit redirect from query, otherwise fall back to referer / homepage
     $to = $request->query('redirect')
         ?: $request->header('referer')
         ?: '/';
-    return redirect($to);
+
+    // Also set a persistent cookie as fallback — sessions can be regenerated,
+    // scoped per-subdomain differently, or lost on error pages. Cookie survives
+    // every kind of session issue.
+    return redirect($to)->cookie(
+        'app_locale', $lang,
+        60 * 24 * 365,   // 1 year
+        '/', null, false, false   // path, domain, secure, httpOnly
+    );
 })->name('locale.switch');
 
 // PWA — manifest pentru panou central (service.mir.md).