diff --git a/custom_components/bahmcloud_store/__init__.py b/custom_components/bahmcloud_store/__init__.py
index c00cc21..4236d53 100644
--- a/custom_components/bahmcloud_store/__init__.py
+++ b/custom_components/bahmcloud_store/__init__.py
@@ -7,7 +7,11 @@ from homeassistant.core import HomeAssistant
 from homeassistant.const import Platform
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.event import async_track_time_interval
-from homeassistant.components.panel_custom import async_register_panel
+
+# IMPORTANT:
+# Use the frontend panel registration to keep HA header/sidebar working on mobile,
+# similar to how HACS registers its panel.
+from homeassistant.components.frontend import async_register_built_in_panel
 
 from .core import BCSCore, BCSConfig, BCSError
 
@@ -32,17 +36,18 @@ async def async_setup(hass: HomeAssistant, config: dict) -> bool:
     # Register HTTP views (static panel assets + API)
     await core.register_http_views()
 
-    # Register custom panel (no iframe; uses hass.callApi)
-    await async_register_panel(
+    # Register panel via frontend (keeps navigation/header on mobile)
+    async_register_built_in_panel(
         hass,
-        frontend_url_path="bahmcloud-store",
-        webcomponent_name="bahmcloud-store-panel",
-        module_url="/api/bahmcloud_store_static/panel.js?v=31",
+        component_name="custom",
         sidebar_title="Bahmcloud Store",
         sidebar_icon="mdi:store",
-        require_admin=True,
-        embed_iframe=False,  # Critical for correct navigation/header behavior on mobile
+        frontend_url_path="bahmcloud-store",
         config={},
+        require_admin=True,
+        # module_url must be reachable without auth (we already serve it public)
+        # Cache-busting is fine here.
+        module_url="/api/bahmcloud_store_static/panel.js?v=31",
     )
 
     # Initial refresh (index + custom repos + enrichment)