hotfix: fix small styling issues with top nav, modals, and feature callouts

assets/styles/layouts/_feature-callouts.scss

@@ -7,7 +7,7 @@
   font-weight: $medium;
   color: $g20-white;
   box-shadow: 2px 2px 6px rgba($g2-kevlar, .35);
-  z-index: 1;
+  z-index: 100;
 
   // temp styles for animation
   transition: margin .3s ease-out;

assets/styles/layouts/_global.scss

@@ -6,6 +6,9 @@ body {
   min-height: 100%;
   font-family: $proxima;
   background: $body-bg;
+
+  // One off style to hide element injected by Scarf marketing integration
+  & > img[referrerpolicy="no-referrer-when-downgrade"] {display: none;}
 }
 
 * {

assets/styles/layouts/_modals.scss

@@ -5,7 +5,7 @@
   top: 0;
   width: 100%;
   height: 100%;
-  z-index: 100;
+  z-index: 101;
 
   .modal-overlay {
     position: absolute;