Update app.py

app.py

@@ -4,6 +4,29 @@ from oauth2client.service_account import ServiceAccountCredentials
 import gradio as gr
 import plotly.express as px
 
+# ------------------ Authentication ------------------
+VALID_USERS = {
+    "CarfindAdmin": "Pass.123",
+}
+
+def login():
+    st.title("🔐 Login Required")
+    email = st.text_input("Email")
+    password = st.text_input("Password", type="password")
+    if st.button("Login"):
+        if VALID_USERS.get(email) == password:
+            st.session_state.authenticated = True
+            st.rerun()
+        else:
+            st.error("❌ Incorrect email or password.")
+
+if "authenticated" not in st.session_state:
+    st.session_state.authenticated = False
+
+if not st.session_state.authenticated:
+    login()
+    st.stop()
+
 # === Google Sheets Auth ===
 scope = ["https://spreadsheets.google.com/feeds", "https://www.googleapis.com/auth/drive"]
 creds = ServiceAccountCredentials.from_json_keyfile_name("tough-star.json", scope)