Refine 404 with contextual data

app/assets/stylesheets/_error-page.scss

@@ -28,7 +28,7 @@
 
 .error-page__message {
   font-size: 1.25rem;
-  max-width: 30rem;
+  max-width: 60ch;
   margin: auto;
 }
 
@@ -46,3 +46,7 @@
     padding: 3rem 1rem;
   }
 }
+
+.error-page p {
+  margin: 1em;
+}

app/controllers/application_controller.rb

@@ -41,6 +41,7 @@ def set_admin_view
   end
 
   def render_not_found
+    @requested_path = request.path
     render template: 'errors/not_found', layout: 'layouts/application', status: :not_found, formats: [:html]
   end
 

app/views/errors/not_found.html.erb

@@ -1,10 +1,12 @@
 <main class="error-page">
   <h1 class="error-page__heading">404</h1>
   <h2 class="error-page__subheading">Not Found</h2>
-
   <div class="error-page__message">
     <p>
-      We can’t seem to find what you’re looking for. This could be caused by a bad link or a mistyped URL. You could try the <a href="https://usearch.umn.edu/">University of Minnesota Search</a>.
+      The address 
+      <% if @requested_path %>
+        <code><%= t('views.not_found.hostname') %><%= @requested_path %></code>
+      <% end %>
+      does not exist. Please double check the address, or contact the person who provided you with this link.
     </p>
-  </div>
-</main>
+  </main>

config/locales/en.bootstrap.yml

@@ -242,3 +242,5 @@ en:
         submit: "Delete URLs"
         submit_confirm: "Are you sure you want to delete these URLs?"
         cancel: "Cancel"
+    not_found:
+      hostname: "z.umn.edu"