diff --git a/drb-frontend/app/trips/[id]/page.tsx b/drb-frontend/app/trips/[id]/page.tsx
index bf1d514..fc754f5 100644
--- a/drb-frontend/app/trips/[id]/page.tsx
+++ b/drb-frontend/app/trips/[id]/page.tsx
@@ -702,13 +702,14 @@ function AssistantPanel({
       {/* Input */}
       <div className="px-3 py-3 border-t border-gray-800 shrink-0">
         <div className="flex gap-2">
-          <input
+          <textarea
             value={input}
-            onChange={(e) => setInput(e.target.value)}
+            onChange={(e) => { setInput(e.target.value); e.target.style.height = "auto"; e.target.style.height = `${Math.min(e.target.scrollHeight, 120)}px`; }}
             onKeyDown={(e) => e.key === "Enter" && !e.shiftKey && (e.preventDefault(), send())}
             placeholder="What do you want to do?"
             disabled={loading}
-            className="flex-1 bg-gray-800 border border-gray-700 rounded-lg px-3 py-2 text-white text-sm focus:outline-none focus:border-indigo-500 disabled:opacity-50"
+            rows={1}
+            className="flex-1 bg-gray-800 border border-gray-700 rounded-lg px-3 py-2 text-white text-sm focus:outline-none focus:border-indigo-500 disabled:opacity-50 resize-none overflow-hidden"
           />
           <button
             onClick={send}