diff --git a/web/index.html b/web/index.html
index 15cf5cd..aebc607 100644
--- a/web/index.html
+++ b/web/index.html
@@ -94,21 +94,25 @@
     }
   </style>
 </head>
-<body>
-  <div class="shell">
-    <header class="site-header">
-      <div class="site-header__brand">
-        <h1>📋 Post Tracker</h1>
-        <p style="margin: 0; font-size: 13px; color: #6b7280;">Alle Bereiche über diese Navigation laden</p>
-      </div>
-      <nav class="site-header__nav">
-        <button type="button" class="site-header__nav-btn" data-view-target="posts">Beiträge</button>
-        <button type="button" class="site-header__nav-btn" data-view-target="dashboard">Dashboard</button>
-        <button type="button" class="site-header__nav-btn" data-view-target="settings">⚙️ Einstellungen</button>
-        <button type="button" class="site-header__nav-btn" data-view-target="bookmarks">🔖 Bookmarks</button>
-      </nav>
-    </header>
-    <main class="shell-main">
+  <body>
+    <div class="shell">
+      <header class="site-header">
+        <div class="container">
+          <div class="header-main">
+            <div>
+              <h1>📋 Post Tracker</h1>
+              <p style="margin: 0; font-size: 13px; color: #6b7280;">Alle Bereiche über diese Navigation laden</p>
+            </div>
+            <div class="header-links">
+              <button type="button" class="btn btn-secondary" data-view-target="posts">Beiträge</button>
+              <button type="button" class="btn btn-secondary" data-view-target="dashboard">Dashboard</button>
+              <button type="button" class="btn btn-secondary" data-view-target="settings">⚙️ Einstellungen</button>
+              <button type="button" class="btn btn-secondary" data-view-target="bookmarks">🔖 Bookmarks</button>
+            </div>
+          </div>
+        </div>
+      </header>
+      <main class="shell-main">
       <iframe id="appFrame" src="" title="Post Tracker Inhalt" loading="lazy"></iframe>
     </main>
   </div>
diff --git a/web/style.css b/web/style.css
index 021e0a0..4891fd3 100644
--- a/web/style.css
+++ b/web/style.css
@@ -17,6 +17,7 @@ body {
   padding: 20px;
 }
 
+.site-header,
 header {
   background: white;
   padding: 16px 18px;
