Add two new ad formats to blog articles for increased revenue

Integrates an interstitial overlay ad and a parallax ad into article pages to display advertisements.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 23852c00-4779-460a-9e0c-d09fee4b6c92
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 3158e283-294f-4fb9-b342-6bff6c7c14cc
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/f209e72a-0939-48fa-84fc-57854de71967/23852c00-4779-460a-9e0c-d09fee4b6c92/tdiozLO
Replit-Helium-Checkpoint-Created: true

client/src/components/interstitial-ad.tsx

@@ -0,0 +1,66 @@
+import { useState, useEffect } from "react";
+import { X } from "lucide-react";
+import AdSense from "./adsense";
+
+const COUNTER_KEY = "folx-interstitial-count";
+const DELAY_MS = 3000;
+
+export default function InterstitialAd() {
+  const [visible, setVisible] = useState(false);
+
+  useEffect(() => {
+    const raw = sessionStorage.getItem(COUNTER_KEY);
+    const count = raw ? parseInt(raw, 10) : 0;
+    const next = count + 1;
+    sessionStorage.setItem(COUNTER_KEY, next.toString());
+
+    const shouldShow = next % 2 === 1;
+    if (!shouldShow) return;
+
+    const timer = setTimeout(() => setVisible(true), DELAY_MS);
+    return () => clearTimeout(timer);
+  }, []);
+
+  useEffect(() => {
+    if (visible) {
+      document.body.style.overflow = "hidden";
+    }
+    return () => {
+      document.body.style.overflow = "";
+    };
+  }, [visible]);
+
+  if (!visible) return null;
+
+  return (
+    <div
+      className="fixed inset-0 z-[9999] flex items-center justify-center bg-black/70 animate-in fade-in duration-300"
+      onClick={() => setVisible(false)}
+      data-testid="interstitial-ad-overlay"
+    >
+      <div
+        className="relative bg-card rounded-xl shadow-2xl w-[90vw] max-w-lg p-6"
+        onClick={(e) => e.stopPropagation()}
+        data-testid="interstitial-ad-container"
+      >
+        <button
+          onClick={() => setVisible(false)}
+          className="absolute top-3 right-3 z-10 w-8 h-8 flex items-center justify-center rounded-full bg-muted hover:bg-muted/80 text-foreground transition-colors"
+          data-testid="button-interstitial-close"
+          aria-label="Schließen"
+        >
+          <X className="w-5 h-5" />
+        </button>
+        <div className="text-[10px] text-muted-foreground/40 text-center mb-2 uppercase tracking-widest">Anzeige</div>
+        <div className="min-h-[250px] flex items-center justify-center">
+          <AdSense
+            slot="4154017639"
+            format="rectangle"
+            responsive={false}
+            style={{ display: "inline-block", width: "300px", height: "250px" }}
+          />
+        </div>
+      </div>
+    </div>
+  );
+}

client/src/components/parallax-ad.tsx

@@ -0,0 +1,19 @@
+import AdSense from "./adsense";
+
+export default function ParallaxAd() {
+  return (
+    <div className="relative" data-testid="parallax-ad-wrapper">
+      <div className="sticky top-0 h-[350px] flex items-center justify-center bg-background z-0">
+        <div className="text-center w-full max-w-lg mx-auto">
+          <div className="text-[10px] text-muted-foreground/40 text-center mb-2 uppercase tracking-widest">Anzeige</div>
+          <AdSense
+            slot="2398082838"
+            format="rectangle"
+            style={{ display: "block", minHeight: "250px" }}
+          />
+        </div>
+      </div>
+      <div className="h-[350px]" aria-hidden="true" />
+    </div>
+  );
+}

client/src/pages/article.tsx

@@ -12,6 +12,8 @@ import Footer from "@/components/footer";
 import { InArticleAd, PageSideAds } from "@/components/adsense";
 import DOMPurify from "dompurify";
 import ShareButtons from "@/components/share-buttons";
+import InterstitialAd from "@/components/interstitial-ad";
+import ParallaxAd from "@/components/parallax-ad";
 import { useEffect, useMemo } from "react";
 
 const ALLOWED_IFRAME_DOMAINS = [
@@ -337,7 +339,9 @@ export default function ArticlePage() {
 
         <RelatedArticles currentSlug={slug || ""} />
       </main>
+      <ParallaxAd />
       <Footer narrow />
+      <InterstitialAd />
     </div>
   );
 }

replit.md

@@ -28,6 +28,8 @@ The official website for Folx Music Television (folx.tv). Dark-themed bento grid
 - Recipe widget + full /rezepte subpage (21 recipes across 5 regions: Österreich, Bayern, Schwaben/Baden, Südtirol/Alpen, Norddeutschland) with AI-generated images
 - Google News RSS widget (Volksmusik/Schlager news, 5 items, auto-rotate)
 - Google AdSense integration (ca-pub-4465464714854276)
+- Interstitial overlay ad on article pages (3s delay, shows every other article visit, sessionStorage counter)
+- Parallax/reveal ad below article content (sticky background ad revealed on scroll)
 - Web Push Notifications (bell icon in header, auto-send on new articles, admin panel at /admin/push)
 - Article listing with featured carousel and category filtering
 - HTML content supports embedded iframes (bunny.net, YouTube, Facebook, Instagram, TikTok)