Update app.py

app.py

@@ -12,7 +12,7 @@ import xgboost as xgb
 
 warnings.filterwarnings("ignore")
 
-# Load XGBoost model (native JSON format)
+# Load XGBoost model (from .json)
 xgb_model = xgb.Booster()
 xgb_model.load_model("xgb_model.json")
 
@@ -116,7 +116,7 @@ def chat_fn(message, history, user_state={}):
     if user_state["step"] == "get_tile_size":
         area = extract_tile_area(message, user_state["unit"])
         if area is None:
-            return reply("I couldn’t understand that size. Try something like 600 x 600 or 2 x 2 or 4."), None, user_state
+            return reply("I couldn’t understand that size. Try something like 600 x 600 or 2 x 2 or just 4."), None, user_state
 
         user_state["tile_area"] = area
         user_state["step"] = "done"
@@ -164,8 +164,8 @@ def chat_fn(message, history, user_state={}):
     return reply("Type 'Floor' or 'Wall' to begin a new estimate."), None, user_state
 
 
-# --- Modern Gradio UI with Theme ---
-with gr.Blocks(theme=gr.themes.Soft(primary_hue="blue", radius_size="full")) as demo:
+# --- Modern Gradio UI with Soft theme ---
+with gr.Blocks(theme=gr.themes.Soft(primary_hue="blue", radius_size="lg")) as demo:
     gr.Markdown(
         """
         # 🧱 <span style="color:#3B82F6">TileBot</span> – Smart Tile Estimator