Update app.py

app.py

@@ -11,17 +11,23 @@ import os
 from dotenv import load_dotenv
 import pdfplumber  # Alternative PDF library
 
-# Load environment variables
-load_dotenv()
-
-# --- Retrieve API Key ---
-API_KEY = os.getenv("OPENROUTER_API_KEY")
+API_KEY = os.environ.get('OPENROUTER_API_KEY')
 if not API_KEY:
-    st.error("OPENROUTER_API_KEY not found in environment variables! Please add it to your .env file.")
+    st.error("""
+    **API Key Not Configured!**
+    
+    Please add your API key to Hugging Face Spaces secrets:
+    1. Go to your Space settings
+    2. Select "Variables and secrets" 
+    3. Add a secret named: `OPENROUTER_API_KEY`
+    4. Set its value to your actual API key
+    5. Redeploy the space
+    """)
     st.stop()
 
+# --- API Configuration ---
 API_URL = "https://api.groq.com/openai/v1/chat/completions"
-MODEL = "llama3-70b-8192"  # Or "mixtral-8x7b-32768" or "gemma-7b-it"
+MODEL = "llama3-70b-8192"
 
 # Set Tesseract path for different environments
 try: