Update style.css

style.css

@@ -18,6 +18,6 @@
     left: 0;
     width: 100%;
     height: 100%;
-    background-color: rgba(0, 0, 0, 0.7); /* Black overlay with 50% opacity */
+    background-color: rgba(0, 0, 0, 0.8); /* Black overlay with 50% opacity */
     z-index: -1; /* Place the overlay behind the content */
 }