fix: simplify Safari scrollbar fix to minimal changes

https://claude.ai/code/session_01TnkQdftgp5KRVQbaTmZPi8

Author: claude

src/styles/main.css

@@ -50,22 +50,14 @@ body {
 		border-radius: 9999px;
 	}
 
-	.scrollbar-custom::-webkit-scrollbar-thumb:hover {
-		background-color: rgba(0, 0, 0, 0.2);
-	}
-
 	.dark .scrollbar-custom::-webkit-scrollbar {
-		background-color: transparent;
+		background-color: rgba(17, 17, 17, 0.85);
 	}
 
 	.dark .scrollbar-custom::-webkit-scrollbar-thumb {
 		background-color: rgba(255, 255, 255, 0.1);
 	}
 
-	.dark .scrollbar-custom::-webkit-scrollbar-thumb:hover {
-		background-color: rgba(255, 255, 255, 0.2);
-	}
-
 	/* Rounded top/bottom caps for vertical scrollbars (Chrome/Edge/Safari) */
 	.scrollbar-custom::-webkit-scrollbar-track {
 		@apply rounded-full bg-clip-padding; /* clip bg to padding so caps look round */