diff --git a/assets/js/lab-sidebar.js b/assets/js/lab-sidebar.js
index 6a3fce2..e61511c 100644
--- a/assets/js/lab-sidebar.js
+++ b/assets/js/lab-sidebar.js
@@ -17,8 +17,8 @@
     btn.title     = 'Abrir menú';
     btn.innerHTML = '<i class="fas fa-bars"></i>';
 
-    // Inyectar como primer hijo del content-header
-    var header = document.querySelector('.content-header');
+    // Inyectar como primer hijo del header de página (cualquier variante)
+    var header = document.querySelector('.content-header, .page-header');
     if (header) {
         header.insertBefore(btn, header.firstChild);
         header.classList.add('has-sidebar-toggle');
diff --git a/core/Layout.php b/core/Layout.php
index a6eff5a..6a49f79 100644
--- a/core/Layout.php
+++ b/core/Layout.php
@@ -137,6 +137,9 @@ class Layout
 <!-- Bootstrap 5 JS -->
 <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
 
+<!-- Sidebar toggle responsivo (móvil/tablet) -->
+<script src="<?= $base ?>/assets/js/lab-sidebar.js"></script>
+
 <!-- Helper JS global: toasts y fetch wrapper -->
 <script>
 /**