Update app.py

app.py

@@ -1,43 +1,91 @@
 import streamlit as st
+import time # Import time for simulating a running task
 
-# Alternative approach: Use Streamlit's native components with minimal CSS
-
-# First, let's hide the default header with minimal CSS
+# --- Custom CSS for Sticky Header ---
 st.markdown("""
 <style>
-header {display: none !important;}
+    /* Hide the default Streamlit header */
+    header {
+        display: none !important;
+    }
+
+    /* Make the custom header container sticky */
+    .sticky-header {
+        position: sticky;
+        top: 0;
+        background-color: white; /* Or your preferred header background color */
+        padding: 10px 0; /* Adjust padding as needed */
+        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* Optional: Add a subtle shadow */
+        z-index: 999; /* Ensure the header stays on top */
+    }
+
+    /* Style for the status indicator */
+    .status-indicator {
+        margin-left: 20px; /* Adjust spacing */
+        font-weight: bold;
+    }
+
+    .status-running {
+        color: orange;
+    }
+
+    .status-complete {
+        color: green;
+    }
+
+    .status-error {
+        color: red;
+    }
 </style>
 """, unsafe_allow_html=True)
 
-# Now create a completely custom header using Streamlit elements
+# --- Sticky Header Content ---
+# Use a container for the sticky header
+header_container = st.container()
 
-# Create a container at the top of the app
-header = st.container()
+with header_container:
+    col1, col2 = st.columns([1, 5]) # Adjust column ratios as needed
+    with col1:
+        st.logo(image="images/menu_book_60dp_75FBFD.png")
+    with col2:
+        st.title("Map descriptions to SBS codes") # Your app title
+        # Placeholder for the status indicator
+        status_placeholder = st.empty()
 
-# Add spacing to prevent content from being hidden under the fixed header
-st.markdown(
-    """
-    <div style="height: 100px;"></div>
-    """, 
-    unsafe_allow_html=True
-)
+# Add spacing below the sticky header to prevent content from being hidden
+st.markdown("""<div style="height: 120px;"></div>""", unsafe_allow_html=True) # Adjust height based on your header size
 
-# Rest of the app
-# Sidebar content
+# --- Main App Content ---
 st.sidebar.header("SBS V2.0 mapper")
 st.sidebar.write("(work in progress)")
 st.sidebar.text("Demo by JA-RAD")
-st.title("Map descriptions to SBS codes with Sentence Transformer + Reasoning")
+
 st.subheader("Select specific Chapter for quicker results")
-st.logo(image="images/menu_book_60dp_75FBFD.png")
 
-# Page setup - moved after the custom header
+
+# --- Application Logic (Example with Status Update) ---
+
+# Function to simulate a long-running task
+def run_mapping_process():
+    status_placeholder.markdown('<span class="status-indicator status-running">Running...</span>', unsafe_allow_html=True)
+    # Simulate work
+    time.sleep(3)
+    # Update status on completion
+    status_placeholder.markdown('<span class="status-indicator status-complete">Complete</span>', unsafe_allow_html=True)
+
+# Example of triggering the process (you would integrate this with your actual logic)
+if st.button("Start Mapping"):
+    run_mapping_process()
+
+# --- Navigation (Keep your existing navigation setup) ---
 type_text_page = st.Page(
     page="pages/type_text.py",
     title="DEMO (work in progress)",
     icon=":material/keyboard:",
-    default=True,)
+    default=True,
+)
 
 # --- NAVIGATION SETUP ---
 pg = st.navigation(pages=[type_text_page]) # WITHOUT SECTIONS
 pg.run()
+