Fix dropdown z-index by using negative z-index on clouds instead of overriding all children

src/app/globals.css

@@ -279,7 +279,7 @@ summary,
 	position: fixed;
 	inset: 0;
 	pointer-events: none;
-	z-index: 0;
+	z-index: -1;
 	background:
 		radial-gradient(
 			ellipse 240px 60px at 15% 8%,
@@ -323,7 +323,7 @@ summary,
 	position: fixed;
 	inset: 0;
 	pointer-events: none;
-	z-index: 0;
+	z-index: -1;
 	background:
 		radial-gradient(
 			ellipse 600px 400px at 20% 0%,
@@ -336,14 +336,6 @@ summary,
 			transparent 100%
 		);
 }
-/* Ensure all content sits above the cloud/glow layers */
-@layer base {
-	.site-bg > * {
-		position: relative;
-		z-index: 1;
-	}
-}
-
 html.dark .site-bg {
 	background: linear-gradient(
 		180deg,