Update app.py

app.py

@@ -162,34 +162,62 @@ def process_pdf(pdf_file, groq_api_key, google_api_key, cx, progress=gr.Progress
     except Exception as e:
         return None, None, f"❌ Error: {str(e)}"
 
-with gr.Blocks(theme=gr.themes.Soft(), title="LectureForge") as demo:
+# Create interface WITHOUT theme parameter (this was causing the error)
+demo = gr.Blocks(title="LectureForge")
+
+with demo:
     gr.Markdown("""
     # 🎓 LectureForge - AI Lecture Notes Generator
     
     Transform textbook PDFs into detailed, illustrated lecture notes using AI.
     
-    **Requirements:**
-    - [Groq API Key](https://console.groq.com) (free: 6000 req/day)
-    - [Google API Key](https://console.cloud.google.com) + [CX](https://programmablesearchengine.google.com)
+    **How to use:**
+    1. Get free API keys:
+       - [Groq API](https://console.groq.com) (6000 requests/day free)
+       - [Google API Key](https://console.cloud.google.com) + [Search Engine CX](https://programmablesearchengine.google.com)
+    2. Upload your textbook PDF (text-based, not scanned)
+    3. Enter your API credentials
+    4. Click "Generate Notes" and wait 2-4 minutes
+    5. Download your notes!
     """)
     
     with gr.Row():
         with gr.Column():
-            pdf_input = gr.File(label="📄 Upload PDF", file_types=[".pdf"])
-            groq_key = gr.Textbox(label="🔑 Groq API Key", type="password", placeholder="gsk_...")
-            google_key = gr.Textbox(label="🔑 Google API Key", type="password", placeholder="AIza...")
-            cx_input = gr.Textbox(label="🔍 Google CX", placeholder="Your search engine ID")
+            gr.Markdown("### 📤 Upload & Configure")
+            pdf_input = gr.File(label="📄 Upload PDF Textbook", file_types=[".pdf"])
+            groq_key = gr.Textbox(
+                label="🔑 Groq API Key", 
+                type="password", 
+                placeholder="gsk_..."
+            )
+            google_key = gr.Textbox(
+                label="🔑 Google API Key", 
+                type="password",
+                placeholder="AIza..."
+            )
+            cx_input = gr.Textbox(
+                label="🔍 Google Custom Search CX", 
+                placeholder="Your search engine ID"
+            )
+            
             generate_btn = gr.Button("🚀 Generate Notes", variant="primary")
         
         with gr.Column():
-            status_output = gr.Textbox(label="📊 Status", lines=6)
-            notes_output = gr.File(label="📝 Lecture Notes")
-            summary_output = gr.File(label="📋 Summary")
+            gr.Markdown("### 📥 Download Results")
+            status_output = gr.Textbox(label="📊 Status", lines=8)
+            notes_output = gr.File(label="📝 Lecture Notes (.docx)")
+            summary_output = gr.File(label="📋 Summary (.docx)")
     
     gr.Markdown("""
+    ---
+    ### ℹ️ Tips
+    - Works best with text-based PDFs (not scanned images)
+    - Processing time: ~12-18 seconds per section
+    - Free API limits: Groq (6000 req/day), Google (100 searches/day)
+    
     ---
     **Created by:** Ruben Santosh, Vignesh R Nair, Arko Chakraborty  
-    Dayananda Sagar University, Bangalore
+    **Institution:** Dayananda Sagar University, Bangalore, India
     """)
     
     generate_btn.click(