diff --git a/controllers/index.php b/controllers/index.php
index 41f9cac..75136e0 100644
--- a/controllers/index.php
+++ b/controllers/index.php
@@ -1,3 +1,4 @@
 <?php
-    $heading = "Home";
-    require "views/index.view.php";
\ No newline at end of file
+$heading = "Home";
+session_start();
+    require "views/index.view.php";
diff --git a/views/partials/nav.php b/views/partials/nav.php
index 0cc3023..931f2ed 100644
--- a/views/partials/nav.php
+++ b/views/partials/nav.php
@@ -14,67 +14,25 @@
     <div>
       <nav class="flex h-9 items-center justify-between" aria-label="Global">
         <div class="flex lg:min-w-0 lg:flex-1" aria-label="Global">
-          <a href="#" class="-m-1.5 p-1.5">
+          <a href="/" class="<?= urlIs("/") ?> -m-1.5 p-1.5">
             <span class="sr-only">Your Company</span>
             <img class="h-8" src="./../../images/icon.png" alt="">
           </a>
         </div>
-        <div class="flex lg:hidden">
-          <button type="button" class="-m-2.5 inline-flex items-center justify-center rounded-md p-2.5 text-gray-700">
-            <span class="sr-only">Open main menu</span>
-            <!-- Heroicon name: outline/bars-3 -->
-            <svg class="h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" aria-hidden="true">
-              <path stroke-linecap="round" stroke-linejoin="round" d="M3.75 6.75h16.5M3.75 12h16.5m-16.5 5.25h16.5" />
-            </svg>
-          </button>
+        <div class="lg:flex lg:min-w-0 lg:flex-1 lg:justify-center lg:gap-x-12">
+          <?php if(isset($_SESSION['username'])) : ?>
+            <a href="/profile" class="<?= urlIs('/profile') ?> text-sm font-semibold text-gray-900 hover:text-gray-900">Dashboard</a>
+          <?php endif; ?>
         </div>
-        <div class="hidden lg:flex lg:min-w-0 lg:flex-1 lg:justify-center lg:gap-x-12">
-          <a href="/" class="<?= urlIs('/') ?> text-sm font-semibold text-gray-900 hover:text-gray-900">Home</a>
-          <a href="/learn" class="<?= urlIs('/learn') ?> text-sm font-semibold text-gray-900 hover:text-gray-900">Lernen</a>
-          <a href="/mathe" class="<?= urlIs('/mathe') ?> text-sm font-semibold text-gray-900 hover:text-gray-900">Mathe</a>
-          <a href="/game" class="<?= urlIs('/game') ?> text-sm font-semibold text-gray-900 hover:text-gray-900">Game</a>
-        </div>
-        <div class="hidden lg:flex lg:min-w-0 lg:flex-1 lg:justify-end">
-          <a href="/login" class="<?= urlIs('/login') ?> nes-btn text-sm">Anmelden</a>
-          <a href="/register" class="<?= urlIs('/register') ?> nes-btn text-sm">Registrieren</a>
+        <div class="lg:flex lg:min-w-0 lg:flex-1 lg:justify-end">
+          <?php if(isset($_SESSION['username'])) : ?>
+            <a href="/logout" class="<?= urlIs("/logout") ?> nes-btn text-sm">Abmelden</a>
+          <?php else : ?>
+            <a href="/login" class="<?= urlIs('/login') ?> nes-btn text-sm">Anmelden</a>
+            <a href="/register" class="<?= urlIs('/register') ?> nes-btn text-sm">Registrieren</a>
+          <?php endif; ?>
         </div>
       </nav>
-      <!-- Mobile menu, show/hide based on menu open state. -->
-      <div role="dialog" aria-modal="true">
-        <div focus="true" class="fixed inset-0 z-10 overflow-y-auto bg-white px-6 py-6 lg:hidden">
-          <div class="flex h-9 items-center justify-between">
-            <div class="flex">
-              <a href="/" class="<?= urlIs('/') ?> -m-1.5 p-1.5">
-                <span class="sr-only">The Math Wizard</span>
-                <img class="h-8" src="./../../images/icon.png" alt="">
-              </a>
-            </div>
-            <div class="flex">
-              <button type="button" class="-m-2.5 inline-flex items-center justify-center rounded-md p-2.5 text-gray-700">
-                <span class="sr-only">Schließen</span>
-                <!-- Heroicon name: outline/x-mark -->
-                <svg class="h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" aria-hidden="true">
-                  <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
-                </svg>
-              </button>
-            </div>
-          </div>
-          <div class="mt-6 flow-root">
-            <div class="-my-6 divide-y divide-gray-500/10">
-              <div class="space-y-2 py-6">
-                <a href="/" class="<?= urlIs('/') ?> text-sm -mx-3 block rounded-lg py-2 px-3 font-semibold leading-7 text-gray-900 hover:bg-gray-400/10">Home</a>
-                <a href="/learn" class="<?= urlIs('/learn') ?> text-sm -mx-3 block rounded-lg py-2 px-3 font-semibold leading-7 text-gray-900 hover:bg-gray-400/10">Lernen</a>
-                <a href="/mathe" class="<?= urlIs('/mathe') ?> text-sm -mx-3 block rounded-lg py-2 px-3 font-semibold leading-7 text-gray-900 hover:bg-gray-400/10">Mathe</a>
-                <a href="/game" class="<?= urlIs('/game') ?> text-sm -mx-3 block rounded-lg py-2 px-3 font-semibold leading-7 text-gray-900 hover:bg-gray-400/10">Game</a>
-              </div>
-              <div class="py-6">
-                <a href="/login" class="<?= urlIs('/login') ?> text-sm -mx-3 block rounded-lg py-2.5 px-3 font-semibold leading-6 text-gray-900 hover:bg-gray-400/10">Anmelden</a>
-                <a href="/register" class="<?= urlIs('/register') ?> text-sm -mx-3 block rounded-lg py-2.5 px-3 font-semibold leading-6 text-gray-900 hover:bg-gray-400/10">Registrieren</a>
-              </div>
-            </div>
-          </div>
-        </div>
-      </div>
     </div>
   </div>
 </div>