logout working (idk how)

account.php

@@ -104,12 +104,20 @@ include 'header.php';
                 </div>
             </form>
         </div>
+
         <div class="auth__card">
             <form>
                 <a href="productAdder.php" class="auth__actions"> <br>
                 <button class="auth__submit" type="button"">Produkt hinzufügen</button>
                 </a>
             </form>
+
+            <form action="logout.php" method="post" class="auth__actions" style="margin-top: 20px;">
+                <button class="auth__submit" type="submit" style="background:#dc2626;">
+                    Abmelden
+                </button>
+            </form>
+
         </div>
     </section>
 </main>

assets/css/login.css

@@ -289,6 +289,16 @@
     color: var(--gh-text);
 }
 
+.auth__submit {
+    transition: 0.2s ease;
+}
+
+.auth__submit:hover {
+    transform: translateY(-2px);
+    opacity: 0.9;
+}
+
+
 @media (max-width: 900px) {
     .auth__grid {
         grid-template-columns: 1fr;

logout.php

@@ -0,0 +1,30 @@
+<?php
+session_start();
+
+/* Alle Session-Variablen löschen */
+$_SESSION = [];
+
+/* Session-Cookie löschen (wichtig!) */
+if (ini_get("session.use_cookies")) {
+    $params = session_get_cookie_params();
+    setcookie(
+        session_name(),
+        '',
+        time() - 42000,
+        $params["path"],
+        $params["domain"],
+        $params["secure"],
+        $params["httponly"]
+    );
+}
+
+/* Session zerstören */
+session_destroy();
+
+/* Optional: Remember-Me Cookie löschen (falls vorhanden)
+setcookie("remember_token", "", time() - 3600, "/");
+*/
+
+header("Location: login.php");
+exit();
+