diff --git a/contao/templates/frontend/event_map.html.twig b/contao/templates/frontend/event_map.html.twig
index 8608892..8b7f177 100644
--- a/contao/templates/frontend/event_map.html.twig
+++ b/contao/templates/frontend/event_map.html.twig
@@ -107,4 +107,4 @@
 </style>
 
 <script type="application/json" id="{{ mapDataElementId|e('html_attr') }}">{{ mapItemsJson|raw }}</script>
-<script type="module" src="/bundles/mummertmediaeventmanager/assets/map-module.js?v=20260226d"></script>
+<script type="module" src="/bundles/mummertmediaeventmanager/assets/map-module.js?v=20260226g"></script>
diff --git a/public/assets/map-module.js b/public/assets/map-module.js
index cabdcdc..2208f02 100644
--- a/public/assets/map-module.js
+++ b/public/assets/map-module.js
@@ -532,6 +532,7 @@ const bindExternalTagFilters = (container, map, organizationMarkerManager, event
     const eventToggleButton = wrapper.querySelector('[data-map-event-toggle="1"]');
     const canFilterByTag = tagButtons.length > 0;
     const canFilterByEvents = !!eventToggleButton;
+    const canToggleEvents = !!(eventToggleButton && eventLayerManager);
 
     const setEventButtonState = (isActive) => {
         if (!eventToggleButton) {
@@ -549,6 +550,26 @@ const bindExternalTagFilters = (container, map, organizationMarkerManager, event
     let activeTagId = null;
     let eventsOnly = false;
 
+    const updateExclusiveButtonAccessibility = () => {
+        tagButtons.forEach((button) => {
+            const isActive = button.getAttribute('aria-pressed') === 'true';
+            button.setAttribute('aria-disabled', isActive ? 'true' : 'false');
+        });
+
+        if (!eventToggleButton) {
+            return;
+        }
+
+        if (!canToggleEvents) {
+            eventToggleButton.setAttribute('aria-disabled', 'true');
+
+            return;
+        }
+
+        const isEventActive = eventToggleButton.getAttribute('aria-pressed') === 'true';
+        eventToggleButton.setAttribute('aria-disabled', isEventActive ? 'true' : 'false');
+    };
+
     const applyFilter = () => {
         if (eventsOnly) {
             organizationMarkerManager.setVisible(false);
@@ -581,14 +602,17 @@ const bindExternalTagFilters = (container, map, organizationMarkerManager, event
 
     tagButtons.forEach((button) => {
         button.addEventListener('click', () => {
+            if (button.getAttribute('aria-disabled') === 'true') {
+                return;
+            }
+
             const clickedTagId = String(button.dataset.mapTagFilter || '').trim();
 
             if (!/^\d+$/.test(clickedTagId)) {
                 return;
             }
 
-            const isActive = button.getAttribute('aria-pressed') === 'true';
-            activeTagId = isActive ? null : clickedTagId;
+            activeTagId = clickedTagId;
             eventsOnly = false;
 
             tagButtons.forEach((otherButton) => {
@@ -597,6 +621,7 @@ const bindExternalTagFilters = (container, map, organizationMarkerManager, event
             });
 
             setEventButtonState(false);
+            updateExclusiveButtonAccessibility();
             applyFilter();
         });
     });
@@ -628,12 +653,16 @@ const bindExternalTagFilters = (container, map, organizationMarkerManager, event
 
     if (eventToggleButton && eventLayerManager) {
         eventToggleButton.addEventListener('click', () => {
-            const isActive = eventToggleButton.getAttribute('aria-pressed') === 'true';
-            eventsOnly = !isActive;
+            if (eventToggleButton.getAttribute('aria-disabled') === 'true') {
+                return;
+            }
+
+            eventsOnly = true;
             activeTagId = null;
 
             tagButtons.forEach((button) => setButtonState(button, false));
             setEventButtonState(eventsOnly);
+            updateExclusiveButtonAccessibility();
             applyFilter();
         });
     } else if (eventToggleButton) {
@@ -711,9 +740,11 @@ const bindExternalTagFilters = (container, map, organizationMarkerManager, event
             setButtonState(button, null !== activeTagId && tagId === activeTagId);
         });
         setEventButtonState(eventsOnly);
+        updateExclusiveButtonAccessibility();
     };
 
     applyInitialDisplayMode();
+    updateExclusiveButtonAccessibility();
     applyFilter();
     applyMapStyleMode();
 };
@@ -748,6 +779,7 @@ const initLocationLayers = (map, locationItems, markerImageId) => {
         },
         paint: {
             'icon-opacity': 1,
+            'icon-translate': [0, 4],
         },
     });
 
@@ -831,19 +863,9 @@ const initLocationLayers = (map, locationItems, markerImageId) => {
 const initEventLayers = (map, eventItems, eventColor, markerImageId, clusterMarkerImageId) => {
     const sourceId = 'eventmanager-events-source';
     const clusterLayerId = EVENT_CLUSTER_LAYER_ID;
-    const clusterSpiderfyLayerId = EVENT_CLUSTER_SPIDERFY_LAYER_ID;
     const unclusteredLayerId = EVENT_UNCLUSTERED_LAYER_ID;
-    const spiderfyHitAreaImageId = 'eventmanager-spiderfy-hit-area';
     const features = eventItems.map(toFeature);
 
-    if (!map.hasImage(spiderfyHitAreaImageId)) {
-        map.addImage(spiderfyHitAreaImageId, {
-            width: 1,
-            height: 1,
-            data: new Uint8Array([0, 0, 0, 0]),
-        });
-    }
-
     map.addSource(sourceId, {
         type: 'geojson',
         data: {
@@ -875,25 +897,10 @@ const initEventLayers = (map, eventItems, eventColor, markerImageId, clusterMark
         },
         paint: {
             'icon-opacity': 1,
+            'icon-translate': [0, 4],
             'text-color': '#FFFFFF',
             'text-opacity': 1,
-        },
-    });
-
-    map.addLayer({
-        id: clusterSpiderfyLayerId,
-        type: 'symbol',
-        source: sourceId,
-        filter: ['has', 'point_count'],
-        layout: {
-            'icon-image': spiderfyHitAreaImageId,
-            'icon-size': 36,
-            'icon-anchor': 'bottom',
-            'icon-offset': [0, -1.0],
-            'icon-allow-overlap': true,
-        },
-        paint: {
-            'icon-opacity': 0,
+            'text-translate': [0, 4],
         },
     });
 
@@ -911,6 +918,7 @@ const initEventLayers = (map, eventItems, eventColor, markerImageId, clusterMark
         },
         paint: {
             'icon-opacity': 1,
+            'icon-translate': [0, 4],
         },
     });
 
@@ -1016,7 +1024,7 @@ const initEventLayers = (map, eventItems, eventColor, markerImageId, clusterMark
                 },
                 spiderLeavesPaint: {
                     'icon-opacity': 1,
-                    'icon-translate': [0, 8],
+                    'icon-translate': [0, 9],
                 },
                 onLeafClick: (feature, spiderEvent) => {
                     const clickCoordinates = spiderEvent?.lngLat
@@ -1048,14 +1056,6 @@ const initEventLayers = (map, eventItems, eventColor, markerImageId, clusterMark
         map.getCanvas().style.cursor = '';
     });
 
-    const setLayerLayoutVisibility = (layerId, isVisible) => {
-        if (!map.getLayer(layerId)) {
-            return;
-        }
-
-        map.setLayoutProperty(layerId, 'visibility', isVisible ? 'visible' : 'none');
-    };
-
     const fadeLayerOpacity = (layerId, property, value, duration = EVENT_FADE_DURATION_MS) => {
         if (!map.getLayer(layerId)) {
             return;
@@ -1067,14 +1067,31 @@ const initEventLayers = (map, eventItems, eventColor, markerImageId, clusterMark
 
     const eventLayerIds = [
         clusterLayerId,
-        clusterSpiderfyLayerId,
         unclusteredLayerId,
     ];
+    const clusterFilter = ['has', 'point_count'];
+    const unclusteredFilter = ['!', ['has', 'point_count']];
+    const hiddenFilter = ['has', '__eventmanager_hidden__'];
+    let hideLayersTimeoutId = null;
+
+    const setLayerFilter = (layerId, filter) => {
+        if (!map.getLayer(layerId)) {
+            return;
+        }
+
+        map.setFilter(layerId, filter);
+    };
 
     return {
         setVisible: (isVisible) => {
             if (isVisible) {
-                eventLayerIds.forEach((layerId) => setLayerLayoutVisibility(layerId, true));
+                if (null !== hideLayersTimeoutId) {
+                    window.clearTimeout(hideLayersTimeoutId);
+                    hideLayersTimeoutId = null;
+                }
+
+                setLayerFilter(clusterLayerId, clusterFilter);
+                setLayerFilter(unclusteredLayerId, unclusteredFilter);
 
                 fadeLayerOpacity(clusterLayerId, 'icon-opacity', 1);
                 fadeLayerOpacity(clusterLayerId, 'text-opacity', 1);
@@ -1083,16 +1100,22 @@ const initEventLayers = (map, eventItems, eventColor, markerImageId, clusterMark
                 return;
             }
 
-            if (spiderfyInstance && typeof spiderfyInstance.unspiderfyAll === 'function') {
-                spiderfyInstance.unspiderfyAll();
+            if (spiderfyInstance) {
+                if (typeof spiderfyInstance._clearSpiderifiedCluster === 'function') {
+                    spiderfyInstance._clearSpiderifiedCluster();
+                } else if (typeof spiderfyInstance.unspiderfyAll === 'function') {
+                    spiderfyInstance.unspiderfyAll();
+                }
             }
 
             fadeLayerOpacity(clusterLayerId, 'icon-opacity', 0);
             fadeLayerOpacity(clusterLayerId, 'text-opacity', 0);
             fadeLayerOpacity(unclusteredLayerId, 'icon-opacity', 0);
 
-            window.setTimeout(() => {
-                eventLayerIds.forEach((layerId) => setLayerLayoutVisibility(layerId, false));
+            hideLayersTimeoutId = window.setTimeout(() => {
+                setLayerFilter(clusterLayerId, hiddenFilter);
+                setLayerFilter(unclusteredLayerId, hiddenFilter);
+                hideLayersTimeoutId = null;
             }, EVENT_FADE_DURATION_MS + 10);
         },
     };