Update app.py

app.py

@@ -421,6 +421,60 @@ SLEEK_CSS = """
 #chatbot_container .chatbot::-webkit-scrollbar-thumb:hover {
     background: rgba(100, 120, 160, 0.7);
 }
+/* ──────── FINAL WORKING FIX FOR GRADIO 4+ CHATBOT HEIGHT (2025) ──────── */
+#chatbot_container {
+    flex: 1 !important;
+    min-height: 0;
+    display: flex !important;
+    flex-direction: column !important;
+}
+
+/* This is the real container that holds the messages in Gradio 4+ */
+#chatbot_container .svelte-1cea1s5 {
+    flex: 1 !important;
+    min-height: 0 !important;
+    display: flex !important;
+    flex-direction: column !important;
+}
+
+/* The actual scrollable message area (this is the one that was hidden) */
+#chatbot_container .messages {
+    flex: 1 !important;
+    overflow-y: auto !important;
+    overflow-x: hidden !important;
+    padding: 24px !important;
+    min-height: 0 !important;
+}
+
+/* Remove any max-height caps */
+#chatbot_container .gr-chatbot,
+#chatbot_container .svelte-1cea1s5,
+#chatbot_container .messages,
+#chatbot_container * {
+    max-height: none !important;
+}
+
+/* Nice scrollbar */
+#chatbot_container .messages::-webkit-scrollbar {
+    width: 8px;
+}
+#chatbot_container .messages::-webkit-scrollbar-track {
+    background: transparent;
+}
+#chatbot_container .messages::-webkit-scrollbar-thumb {
+    background: rgba(100, 120, 160, 0.4);
+    border-radius: 4px;
+}
+#chatbot_container .messages::-webkit-scrollbar-thumb:hover {
+    background: rgba(100, 120, 160, 0.7);
+}
+
+/* Optional: make code blocks look better in long reports */
+#chatbot_container pre {
+    background: #0f1629 !important;
+    border: 1px solid #2a3755 !important;
+    border-radius: 8px !important;
+}
 """
 
 VOICE_STT_HTML = """