fix: hide hero github cta on mobile

website/style.css

@@ -388,7 +388,7 @@ html.theme-light .compat-logo {
 .hero-grid {
     display: grid;
     /* Single column until the interactive demo appears (1024px). Below that the
-       headline gets the full width (the three CTAs always fit one row) and the
+       headline gets the full width and the install CTAs stay prominent while the
        demo stacks underneath, matching the demo's own 1024px breakpoint. */
     grid-template-columns: minmax(0, 1fr);
     align-content: center;
@@ -4825,6 +4825,10 @@ header[id] {
 }
 
 @media (max-width: 900px) {
+    .hero-github-cta {
+        display: none;
+    }
+
     .btn-demo-mobile {
         display: inline-flex;
     }