In header.html:

Added IDs to navigation links
Added script to hide expertise and contact links on non-index pages
Kept the Start link visible on all pages to return to homepage
In components.js:

Fixed the COMPONENTS_LOADED_EVENT declaration to prevent duplicate declaration error
Added condition to only enable scroll behavior on index page
Kept component loading logic but made it more robust

public/components/header.html

@@ -7,9 +7,9 @@
         </div>
         
         <nav class="nav-menu">
-            <a href="#intro">Start</a>
-            <a href="#services">Expertise</a>
-            <a href="#contact">Kontakt</a>
+            <a href="/" id="start-link">Start</a>
+            <a href="/#services" id="expertise-link">Expertise</a>
+            <a href="/#contact" id="contact-link">Kontakt</a>
             <button class="theme-toggle" aria-label="Theme Toggle">
                 <i class="fas fa-moon"></i>
             </button>
@@ -19,4 +19,11 @@
             <i class="fas fa-bars"></i>
         </button>
     </div>
+    <script>
+        // Hide expertise and contact links on non-index pages
+        if (window.location.pathname !== '/' && window.location.pathname !== '/index.html') {
+            document.getElementById('expertise-link').style.display = 'none';
+            document.getElementById('contact-link').style.display = 'none';
+        }
+    </script>
 </header>