perf: implement multi-phase performance optimizations for PageSpeed 90+

- Resized and compressed oversized logo (204KB -> 21KB)
- Optimized large media images (hs-kabel.png, contact-hero.jpg)
- Implemented dynamic lazy-loading for home page sections
- Tuned Sentry traces sample rate (1.0 -> 0.1)
- Refined font loading and fixed redundant analytics tracking

components/sections/CTASection.tsx

@@ -0,0 +1,102 @@
+"use client";
+
+import React from "react";
+import { m } from "framer-motion";
+import { Reveal } from "../Reveal";
+import { Counter } from "../Counter";
+import { TechBackground } from "../TechBackground";
+import { Button } from "../Button";
+import { useTranslations } from "next-intl";
+
+export const CTASection = () => {
+  const t = useTranslations("Index");
+
+  return (
+    <section className="bg-white relative overflow-hidden">
+      <TechBackground />
+      {/* Decorative Background Elements */}
+      <div className="absolute top-0 left-0 w-64 h-64 bg-accent/5 rounded-full blur-3xl -translate-x-1/2 -translate-y-1/2" />
+      <div className="absolute bottom-0 right-0 w-96 h-96 bg-primary/5 rounded-full blur-3xl translate-x-1/2 translate-y-1/2" />
+
+      <div className="container-custom relative z-10">
+        <Counter value={5} className="section-number" />
+        <Reveal>
+          <div className="relative rounded-3xl md:rounded-[2.5rem] bg-primary p-8 md:p-24 overflow-hidden group">
+            {/* Corner Accents */}
+            <div className="tech-corner top-8 left-8 border-t-2 border-l-2" />
+            <div className="tech-corner top-8 right-8 border-t-2 border-r-2" />
+            <div className="tech-corner bottom-8 left-8 border-b-2 border-l-2" />
+            <div className="tech-corner bottom-8 right-8 border-b-2 border-r-2" />
+
+            <div className="absolute top-0 right-0 w-1/2 h-full opacity-10 pointer-events-none">
+              <svg
+                viewBox="0 0 400 400"
+                fill="none"
+                xmlns="http://www.w3.org/2000/svg"
+              >
+                <m.circle
+                  animate={{ r: [400, 410, 400], opacity: [0.1, 0.2, 0.1] }}
+                  transition={{
+                    duration: 5,
+                    repeat: Infinity,
+                    ease: "easeInOut",
+                  }}
+                  cx="400"
+                  cy="0"
+                  r="400"
+                  stroke="white"
+                  strokeWidth="2"
+                />
+                <m.circle
+                  animate={{ r: [300, 310, 300], opacity: [0.1, 0.2, 0.1] }}
+                  transition={{
+                    duration: 4,
+                    repeat: Infinity,
+                    ease: "easeInOut",
+                    delay: 0.5,
+                  }}
+                  cx="400"
+                  cy="0"
+                  r="300"
+                  stroke="white"
+                  strokeWidth="2"
+                />
+                <m.circle
+                  animate={{ r: [200, 210, 200], opacity: [0.1, 0.2, 0.1] }}
+                  transition={{
+                    duration: 3,
+                    repeat: Infinity,
+                    ease: "easeInOut",
+                    delay: 1,
+                  }}
+                  cx="400"
+                  cy="0"
+                  r="200"
+                  stroke="white"
+                  strokeWidth="2"
+                />
+              </svg>
+            </div>
+
+            <div className="relative z-10">
+              <h2 className="text-3xl md:text-6xl font-bold text-white mb-6 md:mb-8 leading-tight">
+                {t("cta.title")}
+              </h2>
+              <p className="text-slate-300 text-lg md:text-xl mb-8 md:mb-12 leading-relaxed">
+                {t("cta.subtitle")}
+              </p>
+              <Button
+                href="/kontakt"
+                variant="accent"
+                showArrow
+                className="w-full sm:w-auto !px-10 !py-5 text-lg"
+              >
+                {t("cta.button")}
+              </Button>
+            </div>
+          </div>
+        </Reveal>
+      </div>
+    </section>
+  );
+};