Update app.py

app.py

@@ -27,7 +27,17 @@ warnings.filterwarnings("ignore")
 # ==========================================
 # 1. PAGE CONFIGURATION & MAPPINGS
 # ==========================================
-st.set_page_config(page_title="Topic Modeling Pipeline", layout="wide", initial_sidebar_state="collapsed")
+st.set_page_config(page_title="Topic Modeling Pipeline", layout="wide", initial_sidebar_state="expanded")
+
+# Add this right below set_page_config to stop the screen from jumping left/right
+st.markdown("""
+    <style>
+        /* Force the vertical scrollbar to always show so the page width never changes */
+        html { overflow-y: scroll; }
+        /* Prevent horizontal scrolling */
+        .block-container { max-width: 100%; overflow-x: hidden; }
+    </style>
+    """, unsafe_allow_html=True)
 
 EMBEDDING_MAP = {
     "MiniLM (Fast & Lightweight)": "sentence-transformers/all-MiniLM-L6-v2",
@@ -370,4 +380,4 @@ if st.button("🚀 Run Topic Modeling Pipeline", type="primary", use_container_w
                  bbox=dict(boxstyle="square,pad=1", facecolor='#f0f0f0', edgecolor='grey', lw=2))
 
         plt.subplots_adjust(hspace=0.6, wspace=0.3)
-        st.pyplot(fig)
+        st.pyplot(fig, use_container_width=True)