diff --git a/apps/web/src/main.tsx b/apps/web/src/main.tsx
index 30bec40..9dec7e4 100644
--- a/apps/web/src/main.tsx
+++ b/apps/web/src/main.tsx
@@ -75,25 +75,52 @@ function ViewNav({ hash }: { hash: string }) {
 
 function Root() {
   const [hash, setHash] = useState(window.location.hash || '#tactical')
-  useEffect(() => {
-    const on = () => setHash(window.location.hash || '#tactical')
-    window.addEventListener('hashchange', on)
-    return () => window.removeEventListener('hashchange', on)
-  }, [])
 
-  const view = 
-    hash === '#tactical' || hash === '#military' ? <TacticalDefenseView /> :
-    hash === '#executive' || hash === '#pitch' ? <ExecutiveShowcase /> :
-    hash === '#compare' ? <CompareView /> :
-    hash === '#review' ? <IntelligenceDashboard /> : 
-    <App />
+  useEffect(() => {
+    const on = () => {
+      const h = window.location.hash || '#tactical';
+      setHash(h);
+      // Trigger a resize event to ensure MapLibre maps adapt to visibility changes instantly
+      setTimeout(() => {
+        window.dispatchEvent(new Event('resize'));
+      }, 50);
+    };
+    window.addEventListener('hashchange', on);
+    return () => window.removeEventListener('hashchange', on);
+  }, []);
+
+  const isTactical = hash === '#tactical' || hash === '#military';
+  const isExecutive = hash === '#executive' || hash === '#pitch';
+  const isCompare = hash === '#compare';
+  const isReview = hash === '#review';
+  const isMap = !isTactical && !isExecutive && !isCompare && !isReview;
 
   return (
     <>
       <ViewNav hash={hash} />
-      {view}
+
+      {/* Keep-Alive Persistent Views: Preserves Map Instances and GPU Tile Caches across Tab switches */}
+      <div style={{ display: isTactical ? 'block' : 'none', width: '100vw', height: '100vh', position: 'absolute', top: 0, left: 0 }}>
+        <TacticalDefenseView />
+      </div>
+
+      <div style={{ display: isExecutive ? 'block' : 'none', width: '100vw', height: '100vh', position: 'absolute', top: 0, left: 0 }}>
+        <ExecutiveShowcase />
+      </div>
+
+      <div style={{ display: isCompare ? 'block' : 'none', width: '100vw', height: '100vh', position: 'absolute', top: 0, left: 0 }}>
+        <CompareView />
+      </div>
+
+      <div style={{ display: isReview ? 'block' : 'none', width: '100vw', height: '100vh', position: 'absolute', top: 0, left: 0 }}>
+        <IntelligenceDashboard />
+      </div>
+
+      <div style={{ display: isMap ? 'block' : 'none', width: '100vw', height: '100vh', position: 'absolute', top: 0, left: 0 }}>
+        <App />
+      </div>
     </>
-  )
+  );
 }
 
 ReactDOM.createRoot(document.getElementById('root')!).render(
diff --git a/apps/web/src/pages/TacticalDefenseView.tsx b/apps/web/src/pages/TacticalDefenseView.tsx
index 90d1d1c..6f772d1 100644
--- a/apps/web/src/pages/TacticalDefenseView.tsx
+++ b/apps/web/src/pages/TacticalDefenseView.tsx
@@ -90,7 +90,7 @@ export const TacticalDefenseView: React.FC = () => {
 
     const initialMap = new maplibregl.Map({
       container: mapContainer.current,
-      style: '/style-dark.json',
+      style: '/style.json',
       center: [35.9106, 31.9539],
       zoom: 11,
       pitch: 35,
@@ -99,6 +99,11 @@ export const TacticalDefenseView: React.FC = () => {
 
     map.current = initialMap;
 
+    const handleResize = () => {
+      if (initialMap) initialMap.resize();
+    };
+    window.addEventListener('resize', handleResize);
+
     initialMap.on('mousemove', (e) => {
       setCursorPos({
         lat: Number(e.lngLat.lat.toFixed(5)),