Misc minor fixes and updates in some styles

Author: javiereguiluz

assets/styles/app.scss

@@ -253,6 +253,10 @@ header nav.navbar .nav-item {
   margin: 1.5em 0 0
 }
 
+.btn-secondary {
+  color: #fff;
+}
+
 footer {
   background: var(--secondary-color);
   margin-top: 2em;
@@ -321,9 +325,14 @@ footer #footer-resources i {
 /* Forms
    ------------------------------------------------------------------------- */
 .form-control {
+  color: var(--gray-700);
   height: 45px;
 }
 
+.form-group .form-control:focus {
+  color: var(--text-color);
+}
+
 .form-group.has-error .form-control {
   border-color: var(--red);
 }
@@ -395,7 +404,7 @@ body#homepage .jumbotron .btn {
 body#homepage .jumbotron P {
   margin-bottom: 15px;
   font-size: 23px;
-  font-weight: 200
+  font-weight: 400
 }
 
 /* Page: 'Login'

templates/admin/blog/_delete_form.html.twig

@@ -1,7 +1,7 @@
 {{ include('blog/_delete_post_confirmation.html.twig') }}
 <form action="{{ url('admin_post_delete', {id: post.id}) }}" method="post" data-confirmation="true" id="delete-form">
     <input type="hidden" name="token" value="{{ csrf_token('delete') }}" />
-    <button type="submit" class="btn btn-lg btn-block btn-danger">
+    <button type="submit" class="btn btn-block btn-danger">
         <i class="fa fa-trash" aria-hidden="true"></i>
         {{ 'action.delete_post'|trans }}
     </button>