updates

client/src/components/CollapsibleSection.jsx

@@ -14,7 +14,11 @@ export default function CollapsibleSection({ title, defaultOpen = true, badge, c
         {title}
         {badge}
       </button>
-      {open && children}
+      <div className={`collapsible-content ${open ? 'is-open' : ''}`}>
+        <div className="collapsible-inner">
+          {children}
+        </div>
+      </div>
     </div>
   )
 }