Update streamlit_app.py

streamlit_app.py

@@ -17,6 +17,22 @@ from dotenv import load_dotenv
 
 load_dotenv()
 
+# -------------------------------------------------
+#  Sticky‑video CSS – makes the sidebar video float
+# -------------------------------------------------
+sticky_css = """
+<style>
+[data-testid="stSidebar"] video {
+    position: sticky;      /* stay fixed while scrolling */
+    top: 1rem;             /* distance from top of viewport */
+    max-height: 30vh;      /* limit height to 30 % of viewport */
+    width: 100%;           /* fill sidebar width */
+    border-radius: 4px;    /* optional rounded corners */
+}
+</style>
+"""
+st.markdown(sticky_css, unsafe_allow_html=True)
+
 # ----------------------------------------------------------------------
 # Configuration & constants
 # ----------------------------------------------------------------------