diff --git a/app/assets/tailwind/application.css b/app/assets/tailwind/application.css
index f1d8c73..962de3c 100644
--- a/app/assets/tailwind/application.css
+++ b/app/assets/tailwind/application.css
@@ -1 +1,16 @@
 @import "tailwindcss";
+
+@theme {
+    /* 1. Die CSS-Variable für die Animation definieren */
+    --animate-shrink: shrink 5s linear forwards;
+
+    /* 2. Die dazugehörigen Keyframes festlegen */
+    @keyframes shrink {
+        0% {
+            transform: scaleX(1);
+        }
+        100% {
+            transform: scaleX(0);
+        }
+    }
+}
diff --git a/app/javascript/controllers/flash_controller.js b/app/javascript/controllers/flash_controller.js
new file mode 100644
index 0000000..efc2381
--- /dev/null
+++ b/app/javascript/controllers/flash_controller.js
@@ -0,0 +1,40 @@
+import { Controller } from "@hotwired/stimulus";
+
+export default class extends Controller {
+  static targets = ["notification"];
+
+  connect() {
+    // Startet den Timer: Ruft nach 5000 Millisekunden (5 Sekunden) die dismiss-Methode auf
+    this.timeout = setTimeout(() => {
+      this.dismiss();
+    }, 5000);
+  }
+
+  disconnect() {
+    // Wichtig: Löscht den Timer, falls der Nutzer die Nachricht vor Ablauf der 5 Sekunden manuell schließt
+    clearTimeout(this.timeout);
+  }
+
+  dismiss() {
+    // 1. Tailwind-Klassen für das Ausblenden hinzufügen
+    // this.notificationTarget.classList.add("opacity-0","translate-y-2","scale-95");
+
+    // Verschiebt das Element auf der X-Achse weit nach rechts (translate-x-full)
+    // und blendet es leicht aus, damit es weicher wirkt
+    // 1. Alten Startpunkt entfernen (wichtig für Tailwind v4/v3)
+    this.notificationTarget.classList.remove("translate-x-0", "opacity-100");
+    // 2. Neuen Endpunkt hinzufügen (löst die Animation aus)
+    this.notificationTarget.classList.add("translate-x-full", "opacity-20");
+
+    // Fügt Klassen für Deckkraft (0) und minimale Skalierung hinzu
+    // 1. Den Startwert (voll sichtbar) entfernen
+    //this.notificationTarget.classList.remove("opacity-100");
+    // 2. Den Endwert (vollständig transparent) hinzufügen -> startet das Verblassen
+    //this.notificationTarget.classList.add("opacity-0", "scale-95");
+
+    // 2. Nach dem Ende der CSS-Animation (300ms) das Element komplett aus dem DOM löschen
+    setTimeout(() => {
+      this.element.remove();
+    }, 300);
+  }
+}
diff --git a/app/views/layouts/_flash.html.erb b/app/views/layouts/_flash.html.erb
new file mode 100644
index 0000000..4dcf178
--- /dev/null
+++ b/app/views/layouts/_flash.html.erb
@@ -0,0 +1,37 @@
+<% flash.each do |type, message| %>
+  <%
+    bg_color = type == "notice" ? "bg-green-50 border-green-200 text-green-800" : "bg-red-50 border-red-200 text-red-800"
+    icon_color = type == "notice" ? "text-green-500" : "text-red-500"
+    # Die Farbe des Balkens passend zum Typ festlegen
+    bar_color = type == "notice" ? "bg-green-500" : "bg-red-500"
+  %>
+
+  <div data-controller="flash" class="fixed top-5 right-5 z-50 max-w-sm w-full">
+
+    <!-- Das relative Attribut und overflow-hidden sind wichtig für den Balken -->
+    <div data-flash-target="notification"
+         class="relative overflow-hidden transition-all duration-300 ease-out opacity-100 flex items-start p-4 pb-5 rounded-lg border shadow-lg <%= bg_color %>">
+
+      <!-- Nachricht -->
+      <div class="flex-1 ml-3 text-sm font-medium">
+        <%= message %>
+      </div>
+
+      <!-- Schließen-Button -->
+      <div class="ml-4 flex shrink-0">
+        <button data-action="click->flash#dismiss"
+                class="inline-flex rounded-md p-1.5 focus:outline-none focus:ring-2 focus:ring-offset-2 hover:bg-black/5 <%= icon_color %>">
+          <span class="sr-only">Schließen</span>
+          <svg class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor">
+            <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"/>
+          </svg>
+        </button>
+      </div>
+
+      <!-- DER FORTSCHRITTSBALKEN -->
+      <!-- 'animate-shrink' ist unsere eigene Animation, die wir gleich definieren -->
+      <div class="absolute bottom-0 left-0 h-1 w-full origin-left animate-shrink <%= bar_color %>"></div>
+
+    </div>
+  </div>
+<% end %>
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index a67c479..dd79a10 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -25,40 +25,40 @@
   </head>
 
   <body class="bg-gray-100 text-gray-800 antialiased">
-    
+
     <!-- APPLIKATIONS-LAYOUT FÜR EINGELOGGTE NUTZER -->
     <div class="min-h-screen bg-gray-100 flex relative overflow-x-hidden">
-      
+
       <!-- STEUERUNG 1: Mobile Sidebar (Standard-Burger via CSS) -->
-      <input type="checkbox" id="mobile-sidebar-toggle" class="peer hidden" />
+      <input type="checkbox" id="mobile-sidebar-toggle" class="peer hidden">
 
       <!-- STEUERUNG 2: Desktop Sidebar (Einklappen via CSS) -->
-      <input type="checkbox" id="desktop-sidebar-toggle" class="hidden" />
+      <input type="checkbox" id="desktop-sidebar-toggle" class="hidden">
 
       <!-- DUNKLES HINTERGRUND-OVERLAY (Ausblend-Animation nur auf Mobile aktiv) -->
-      <label for="mobile-sidebar-toggle" 
-              class="fixed inset-0 bg-gray-900/50 z-40 md:hidden backdrop-blur-sm 
+      <label for="mobile-sidebar-toggle"
+              class="fixed inset-0 bg-gray-900/50 z-40 md:hidden backdrop-blur-sm
                     opacity-0 pointer-events-none transition-opacity duration-300 ease-in-out
                     peer-checked:opacity-100 peer-checked:pointer-events-auto"></label>
 
       <!-- SIDEBAR NAVIGATION -->
-      <aside class="w-64 bg-white border-r border-gray-200 flex flex-col fixed h-full z-50 
-                    transition-all duration-300 ease-in-out transform -translate-x-full 
+      <aside class="w-64 bg-white border-r border-gray-200 flex flex-col fixed h-full z-50
+                    transition-all duration-300 ease-in-out transform -translate-x-full
                     md:translate-x-0 peer-checked:translate-x-0">
-        
+
         <!-- Logo-Bereich (Desktop-Klickfläche zum Einklappen) -->
         <div class="h-16 flex items-center justify-between px-4 border-b border-gray-200 min-w-0">
           <label for="desktop-sidebar-toggle" class="flex items-center gap-3 select-none group w-full overflow-hidden pointer-events-none md:cursor-pointer md:pointer-events-auto">
             <svg class="h-6 w-6 text-blue-600 shrink-0 transition-transform md:group-hover:scale-110 ml-1" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" d="M21 7.5l-9-5.25L3 7.5m18 0l-9 5.25m9-5.25v9l-9 5.25M3 7.5l9 5.25M3 7.5v9l5.25 3.03M12 12.75v9" /></svg>
             <span class="collapse-text text-xl font-bold text-gray-800 transition-all duration-300 ease-in-out max-w-[180px] opacity-100 overflow-hidden whitespace-nowrap">Vault171</span>
           </label>
-          
+
           <!-- Schließen X (Nur auf Smartphones aktiv) -->
           <label for="mobile-sidebar-toggle" class="md:hidden p-1 text-gray-400 hover:text-gray-600 rounded-lg cursor-pointer">
             <svg class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor"><path stroke-linecap="round" stroke-linejoin="round" d="M6 18 18 6M6 6l12 12" /></svg>
           </label>
         </div>
-        
+
         <!-- Navigations-Links mit dynamischen Helper-Klassen -->
         <nav class="flex-1 p-3 space-y-1 overflow-hidden">
           <%= link_to root_path, class: nav_link_class("dashboard") do %>
@@ -112,7 +112,7 @@
 
       <!-- HAUPTBEREICH (Inhaltsfläche rückt bei verkleinerter Sidebar nach) -->
       <div class="main-content flex-1 flex flex-col min-h-screen w-full transition-all duration-300 ease-in-out pl-0 md:pl-64">
-        
+
         <!-- OBERE LEISTE (Top Bar) -->
         <header class="h-16 bg-white border-b border-gray-200 flex items-center justify-between px-4 md:px-6 sticky top-0 z-30">
           <div class="flex items-center gap-3">
@@ -129,20 +129,21 @@
 
         <!-- INHALT DER JEWEILIGEN VIEW -->
         <main class="p-4 md:p-6 flex-1 w-full mx-auto px-4 md:px-8">
-          <!-- Platzhalter für Flash-Meldungen (z.B. erfolgreiches Speichern) -->
+          <!-- Platzhalter für Flash-Meldungen (z.B. erfolgreiches Speichern)
           <% flash.each do |type, message| %>
             <div class="mb-4 p-4 text-sm rounded-lg border <%= type == 'notice' ? 'bg-green-50 text-green-800 border-green-200' : 'bg-red-50 text-red-800 border-red-200' %>">
               <%= message %>
             </div>
           <% end %>
+-->
+          <%= render "layouts/flash" %>
 
           <%= yield %>
         </main>
       </div>
     </div>
-      
+
     <!-- Globaler Platzhalter für das optionale Turbo-Frame-Modal (z.B. neue Personen anlegen) -->
     <%= turbo_frame_tag "modal" %>
   </body>
 </html>
-