diff --git a/Dockerfile b/Dockerfile
index 509c3ef..a688257 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # syntax = docker/dockerfile:1
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
-ARG RUBY_VERSION=3.0.7
+ARG RUBY_VERSION=3.2.9
 FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base
 
 # Rails app lives here
@@ -19,7 +19,7 @@ FROM base as build
 
 # Install packages needed to build gems
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y build-essential git libpq-dev libvips pkg-config zip
+    apt-get install --no-install-recommends -y build-essential git libpq-dev libvips pkg-config zip libyaml-dev
 
 # Install application gems
 COPY Gemfile Gemfile.lock ./
@@ -47,7 +47,7 @@ FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libvips postgresql-client zip && \
+    apt-get install --no-install-recommends -y curl libvips postgresql-client-17 libyaml-dev zip && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application
diff --git a/Gemfile b/Gemfile
index 802d901..4b3f9a1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-ruby "3.0.7"
+
 
 # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
 gem "rails", "~> 7.1.5", ">= 7.1.5.2"
diff --git a/Gemfile.lock b/Gemfile.lock
index 569092b..9099e96 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -149,7 +149,7 @@ GEM
       net-smtp
     marcel (1.1.0)
     mini_mime (1.1.5)
-    minitest (5.26.0)
+    minitest (5.26.1)
     msgpack (1.8.0)
     mutex_m (0.3.0)
     net-imap (0.4.22)
@@ -281,8 +281,5 @@ DEPENDENCIES
   tzinfo-data
   web-console
 
-RUBY VERSION
-   ruby 3.0.7p220
-
 BUNDLED WITH
    2.5.23
diff --git a/app/assets/javascript/application.js b/app/assets/javascript/application.js
index ad20229..989413b 100644
--- a/app/assets/javascript/application.js
+++ b/app/assets/javascript/application.js
@@ -1,6 +1,4 @@
-//= require rails-ujs
-//= require turbolinks
-//= require_tree .
+
 
 import "@hotwired/turbo-rails"
 import * as ActiveStorage from "@rails/activestorage"
diff --git a/app/views/entries/index.html.erb b/app/views/entries/index.html.erb
index 9c61a0e..3fa0377 100644
--- a/app/views/entries/index.html.erb
+++ b/app/views/entries/index.html.erb
@@ -162,28 +162,7 @@
   </div>
 </div>
 
-<!-- 🔒 Modal zur Bestätigung -->
-<div class="modal fade" id="deleteConfirmModal" tabindex="-1" aria-labelledby="deleteConfirmModalLabel" aria-hidden="true">
-  <div class="modal-dialog modal-dialog-centered">
-    <div class="modal-content">
-      <div class="modal-header">
-        <h5 class="modal-title">Löschen bestätigen</h5>
-        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Schließen"></button>
-      </div>
-      <div class="modal-body">
-        Bist du sicher, dass du diesen Eintrag löschen möchtest?
-      </div>
-      <div class="modal-footer">
-        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Abbrechen</button>
-        <form id="modal-delete-form" method="post">
-          <input type="hidden" name="_method" value="delete">
-          <%= hidden_field_tag :authenticity_token, form_authenticity_token %>
-          <button type="submit" class="btn btn-danger">Löschen</button>
-        </form>
-      </div>
-    </div>
-  </div>
-</div>
+
 
 <!-- JS für Modal -->
 <script>
@@ -255,4 +234,5 @@
             });
         });
     });
-</script>
+
+</script>
\ No newline at end of file
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index 7c034c8..803fce3 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -6,41 +6,75 @@
 
   <%= csrf_meta_tags %>
   <%= csp_meta_tag %>
+  <!-- Bootstrap CSS -->
+  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
 
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css">
+  <!-- Flatpickr Theme -->
   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/flatpickr/dist/themes/material_blue.css">
-  <%= stylesheet_link_tag "application", "data-turbo-track": "reload" %>
 
-  <!-- Flatpickr JS -->
-  <script src="https://cdn.jsdelivr.net/npm/flatpickr"></script>
+  <!-- Custom Styles (optional) -->
 
-  <!-- JS: Flatpickr Init -->
-  <script defer>
-      document.addEventListener("DOMContentLoaded", function () {
-          flatpickr(".flatpickr", {
+  <!-- JS: Bootstrap Bundle (inkl. Popper) -->
+  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" defer></script>
 
-              dateFormat: "d.m.Y",
-              allowInput: true
+  <script>
+      document.addEventListener('DOMContentLoaded', function () {
+          const modalElement = document.getElementById('deleteConfirmModal');
+          const modalInstance = bootstrap.Modal.getOrCreateInstance(modalElement);
+
+          document.querySelectorAll('.open-delete-modal').forEach(button => {
+              button.addEventListener('click', function (e) {
+                  e.preventDefault();
+                  const targetUrl = this.getAttribute('href');
+                  document.getElementById('modal-delete-form').setAttribute('action', targetUrl);
+
+                  // Entferne diese Zeile:
+                  // modalElement.removeAttribute("aria-hidden");
+
+                  modalInstance.show();
+              });
+          });
+
+          // Event-Handler für korrektes Zurücksetzen nach Schließen
+          modalElement.addEventListener('hidden.bs.modal', function () {
+              document.body.classList.remove('modal-open');
+              const backdrops = document.querySelectorAll('.modal-backdrop');
+              backdrops.forEach(b => b.parentNode.removeChild(b));
           });
+
+
+
       });
   </script>
 
-
   <%= javascript_include_tag "application", "data-turbo-track": "reload", defer: true %>
 </head>
 
 <body>
+<!-- 🔒 Modal zur Bestätigung -->
+<div class="modal fade" id="deleteConfirmModal" tabindex="-1" aria-labelledby="deleteConfirmModalLabel" aria-hidden="true">
+  <div class="modal-dialog modal-dialog-centered">
+    <div class="modal-content">
+      <div class="modal-header">
+        <h5 class="modal-title">Löschen bestätigen</h5>
+        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Schließen"></button>
+      </div>
+      <div class="modal-body">
+        Bist du sicher, dass du diesen Eintrag löschen möchtest?
+      </div>
+      <div class="modal-footer">
+        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Abbrechen</button>
+        <form id="modal-delete-form" method="post">
+          <input type="hidden" name="_method" value="delete">
+          <%= hidden_field_tag :authenticity_token, form_authenticity_token %>
+          <button type="submit" class="btn btn-danger">Löschen</button>
+        </form>
+      </div>
+    </div>
+  </div>
+</div>
 
 
-<script defer>
-    document.addEventListener("DOMContentLoaded", function () {
-        flatpickr(".flatpickr", {
-            altInput: true,
-            altFormat: "d.m.Y",
-            dateFormat: "Y-m-d"
-        });
-    });
-</script>
 <nav class="navbar navbar-expand-lg navbar-light bg-light mb-4">
   <div class="container">
     <%= link_to "⏱️ Praktikumsuhr", root_path, class: "navbar-brand" %>
@@ -96,6 +130,9 @@
 <footer class="text-center mt-5">
   <%= link_to "Impressum & Datenschutz", impressum_path, class: "text-muted" %>
 </footer>
-
 </body>
 </html>
+
+
+
+