diff --git a/TalkHeal.py b/TalkHeal.py
index ad92df7..06d1565 100644
--- a/TalkHeal.py
+++ b/TalkHeal.py
@@ -1,4 +1,5 @@
 import streamlit as st
+
 from auth.auth_utils import init_db
 from components.login_page import show_login_page
 from core.utils import save_conversations, load_conversations,set_authenticated_user
@@ -7,6 +8,26 @@
 
 st.set_page_config(page_title="TalkHeal", page_icon="💬", layout="wide")
 
+# --- Dark Mode Styles ---
+if st.session_state.get('dark_mode', False):
+    st.markdown("""
+        <style>
+        body, .main, .stApp, .css-1d391kg { background-color: #1E1E1E; color: #FFFFFF; }
+        .stButton>button { background-color: #444444; color: white; }
+        .stTextInput>div>input, .stSelectbox>div>div>div { background-color: #333333; color: white; }
+        .stMarkdown, .stExpander { color: #FFFFFF; }
+        </style>
+    """, unsafe_allow_html=True)
+else:
+    st.markdown("""
+        <style>
+        body, .main, .stApp, .css-1d391kg { background-color: #FFFFFF; color: #000000; }
+        .stButton>button { background-color: #DDDDDD; color: black; }
+        .stTextInput>div>input, .stSelectbox>div>div>div { background-color: #FFFFFF; color: black; }
+        .stMarkdown, .stExpander { color: #000000; }
+        </style>
+    """, unsafe_allow_html=True)
+
 # --- DB Initialization ---
 if "db_initialized" not in st.session_state:
     init_db()