Update app.py

app.py

@@ -6,6 +6,7 @@ import streamlit as st
 import plotly.express as px
 from sklearn.feature_extraction.text import TfidfVectorizer
 from sklearn.metrics.pairwise import cosine_similarity
+import os
 
 # Custom CSS for white background, styled sidebar, banner, and dark grey font
 st.markdown("""
@@ -36,7 +37,7 @@ st.markdown("""
         }
                                  .stAlert {
             background-color: #f0f0f5 !important;
-            color: #D3D3D# !important;
+            color: #333333 !important;
             padding: 1.25rem !important;
             font-size: 1rem !important;
             border-radius: 0.5rem !important;
@@ -47,7 +48,7 @@ st.markdown("""
 }
         section[data-testid="stSidebar"] > div:first-child {
     background-color: #1A1A1A !important;
-    color: #D3D3D3 !important;
+    color: #FFFFFF !important;
     padding: 2rem 1.5rem 1.5rem 1.5rem !important;
     border-radius: 12px;
     box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
@@ -67,8 +68,13 @@ st.markdown("""
 </style>
 """, unsafe_allow_html=True)
 
-# Optional: Add a banner image (replace with your image URL)
-st.image("https://cdn-uploads.huggingface.co/production/uploads/67351c643fe51cb1aa28f2e5/7ThcAOjbuM8ajrP85bGs4.jpeg", use_column_width=True)
+# Instead of using an image file that might not exist, create a header with HTML
+st.markdown("""
+    <div style="background-color: #1A1A1A; padding: 20px; border-radius: 10px; margin-bottom: 20px;">
+        <h1 style="color: white; text-align: center;">LOC MetaDiscovery Agent</h1>
+        <p style="color: #D3D3D3; text-align: center;">Library of Congress Collections Analysis Tool</p>
+    </div>
+""", unsafe_allow_html=True)
 
 # Streamlit app header
 st.title("MetaDiscovery Agent for Library of Congress Collections")