Update app.py

app.py

@@ -137,12 +137,31 @@ def apply_custom_css():
             text-align: center;
         }
 
+
+   /*
         div[data-testid="stBottomBlockContainer"] {
             background-color: #111827 !important;
         }
 
         div[data-testid="stChatInput"]{
             background-color: #111827 !important;
+        } */
+
+         /* Override the bottom chat input container */
+        div.stChatFloatingInputContainer {
+            background-color: #111827 !important;
+        }
+
+        /* Override the inner chat input box */
+        div.stChatInputContainer {
+            background-color: #111827 !important;
+
+        }
+
+        /* Optional: Override text area background */
+        textarea {
+            background-color: #111827 !important;
+            color: white !important;
         }
         
         .sidebar-section {