Added Room and some little design updates

app/views/rooms/_form.html.erb

@@ -0,0 +1,51 @@
+<%= form_with(model: room, class: "space-y-6 max-w-xl mx-auto bg-white border border-gray-200 rounded-xl shadow-sm p-6 md:p-8") do |form| %>
+
+  <% if room.errors.any? %>
+    <div class="p-4 mb-4 text-sm text-red-800 rounded-lg bg-red-50 border border-red-200" role="alert">
+      <h2 class="font-bold mb-1"><%= pluralize(room.errors.count, "Fehler") %> verhinderten das Speichern:</h2>
+      <ul class="list-disc list-inside text-xs">
+        <% room.errors.each do |error| %>
+          <li><%= error.full_message %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div>
+    <h2 class="text-xl font-bold text-gray-800">
+      <%= room.new_record? ? "Raum anlegen" : "Raum bearbeiten" %>
+    </h2>
+    <p class="text-sm text-gray-500 mt-1">
+      <%= room.new_record? ? "Definiere einen neuen physischen Standort für deine Inventargegenstände." : "Aktualisiere die Standortbezeichnung oder die Etage." %>
+    </p>
+  </div>
+
+  <hr class="border-gray-200">
+
+  <!-- Raumnummer / Name -->
+  <div>
+    <%= form.label :name, "Raumbezeichnung / Raumnummer", class: "block text-sm font-medium mb-1.5 text-gray-700" %>
+    <%= form.text_field :name, placeholder: "z.B. Raum 101, Serverraum, Werkstatt", class: "py-2 px-3 block w-full border border-gray-300 rounded-lg text-sm bg-gray-50/50 focus:border-blue-500 focus:ring-blue-500" %>
+  </div>
+
+  <!-- Gebäude & Etage im Grid nebeneinander -->
+  <div class="grid grid-cols-1 sm:grid-cols-2 gap-4">
+    <div>
+      <%= form.label :building, "Gebäude / Gebäudeteil", class: "block text-sm font-medium mb-1.5 text-gray-700" %>
+      <%= form.text_field :building, placeholder: "z.B. Hauptgebäude, Bau B", class: "py-2 px-3 block w-full border border-gray-300 rounded-lg text-sm bg-gray-50/50 focus:border-blue-500 focus:ring-blue-500" %>
+    </div>
+    <div>
+      <%= form.label :floor, "Etage / Stockwerk", class: "block text-sm font-medium mb-1.5 text-gray-700" %>
+      <%= form.text_field :floor, placeholder: "z.B. EG, 1. OG, Keller", class: "py-2 px-3 block w-full border border-gray-300 rounded-lg text-sm bg-gray-50/50 focus:border-blue-500 focus:ring-blue-500" %>
+    </div>
+  </div>
+
+  <hr class="border-gray-200">
+
+  <!-- Aktions-Buttons -->
+  <div class="flex justify-end gap-x-3">
+    <%= link_to "Abbrechen", rooms_path, class: "py-2.5 px-4 inline-flex items-center text-sm font-medium text-gray-700 bg-white border border-gray-300 rounded-lg hover:bg-gray-50 transition shadow-sm" %>
+    <%= form.submit room.new_record? ? "Raum erstellen" : "Änderungen speichern", class: "py-2.5 px-4 inline-flex items-center text-sm font-semibold rounded-lg bg-blue-600 text-white hover:bg-blue-700 shadow-sm transition cursor-pointer" %>
+  </div>
+
+<% end %>