src/pages/student/StudentLayout.tsx

@@ -174,6 +174,11 @@ const STYLES = `
     opacity: 1;
   }
 
+  /* Ensure the dock is hidden on desktop (md and up) */
+  @media (min-width: 768px) {
+    .sl-dock-wrap { display: none !important; }
+  }
+
   /* Quest mode: active label uses Cinzel for the pirate feel */
   .quest-mode .sl-dock-item.active .sl-dock-label {
     font-family: 'Sorts Mill Goudy', serif;