Improve paywall background styling.

Co-authored-by: Cursor <cursoragent@cursor.com>

google_apps/PremiumFeaturesView.swift

@@ -64,12 +64,9 @@ struct PremiumFeaturesView: View {
 
     var body: some View {
         ZStack {
-            LinearGradient(
-                colors: backgroundGradientColors,
-                startPoint: .topLeading,
-                endPoint: .bottomTrailing
-            )
-            .ignoresSafeArea()
+            // Solid base + subtle gradients for a more "premium" backdrop.
+            paywallBackground
+                .ignoresSafeArea()
 
             GeometryReader { geo in
                 let useWideLayout = geo.size.width >= PremiumPaywallMetrics.wideLayoutMinWidth
@@ -98,6 +95,45 @@ struct PremiumFeaturesView: View {
         }
     }
 
+    private var paywallBackground: some View {
+        ZStack {
+            (colorScheme == .dark
+             ? Color(red: 0.05, green: 0.06, blue: 0.08)
+             : Color(red: 0.965, green: 0.975, blue: 0.995))
+
+            LinearGradient(
+                colors: backgroundGradientColors,
+                startPoint: .topLeading,
+                endPoint: .bottomTrailing
+            )
+            .opacity(colorScheme == .dark ? 0.6 : 0.55)
+
+            RadialGradient(
+                colors: [
+                    Color.blue.opacity(colorScheme == .dark ? 0.24 : 0.18),
+                    Color.clear,
+                ],
+                center: .topTrailing,
+                startRadius: 10,
+                endRadius: 520
+            )
+            .blendMode(.plusLighter)
+            .opacity(colorScheme == .dark ? 0.85 : 0.65)
+
+            RadialGradient(
+                colors: [
+                    Color.purple.opacity(colorScheme == .dark ? 0.14 : 0.10),
+                    Color.clear,
+                ],
+                center: .bottomLeading,
+                startRadius: 10,
+                endRadius: 560
+            )
+            .blendMode(.plusLighter)
+            .opacity(colorScheme == .dark ? 0.7 : 0.55)
+        }
+    }
+
     private var paywallTopBar: some View {
         HStack {
             Button(action: { dismissPremiumUI() }) {