feat: add tooltips to map markers displaying shop names

src/app/page.tsx

@@ -22,8 +22,23 @@ export default function HomePage() {
 
   return (
     <main className="relative h-dvh w-screen overflow-hidden bg-black text-white font-serif">
-      {/* Navbar - always visible */}
-      <Navbar isDiscoveryOpen={isDiscoveryOpen} onToggleDiscovery={() => setIsDiscoveryOpen(!isDiscoveryOpen)} />
+      {/* Unified shadow container for navbar + drawer */}
+      <div className="absolute top-0 left-0 right-0 bottom-0 pointer-events-none z-[1000]" style={{ boxShadow: 'inset 0 0 40px 10px rgb(0 0 0 / 0.3)' }}>
+        {/* Navbar - always visible */}
+        <Navbar isDiscoveryOpen={isDiscoveryOpen} onToggleDiscovery={() => setIsDiscoveryOpen(!isDiscoveryOpen)} />
+
+        {/* Right Drawer - only render after mount to prevent hydration mismatch */}
+        {mounted && (
+          <Drawer
+            shop={selectedShop}
+            shops={COFFEE_SHOPS}
+            onSelect={setSelectedShop}
+            onClose={() => setSelectedShop(null)}
+            isOpen={isDiscoveryOpen}
+            onToggleOpen={() => setIsDiscoveryOpen(false)}
+          />
+        )}
+      </div>
 
       {/* Map Background */}
       <div className="absolute inset-0 z-0">
@@ -36,17 +51,6 @@ export default function HomePage() {
         />
       </div>
 
-      {/* Right Drawer - only render after mount to prevent hydration mismatch */}
-      {mounted && (
-        <Drawer
-          shop={selectedShop}
-          shops={COFFEE_SHOPS}
-          onSelect={setSelectedShop}
-          onClose={() => setSelectedShop(null)}
-          isOpen={isDiscoveryOpen}
-          onToggleOpen={() => setIsDiscoveryOpen(false)}
-        />
-      )}
       <WelcomeModal />
     </main>
   );