diff --git a/.gitignore b/.gitignore
index 3dab6f8..24a487b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,9 @@ env/
 venv/
 ENV/
 
+# Logs
+logs/
+
 # Streamlit
 .streamlit/
 
diff --git a/README.md b/README.md
index 502c276..a803dc2 100644
--- a/README.md
+++ b/README.md
@@ -4,15 +4,18 @@
 
 ## Features
 
-- [x] Using Llama-3.1 70b on Groq to create o1-like reasoning chains
-- [x] Using Ollama to create o1-like reasoning chains
-- [x] Using Perplexity to create o1-like reasoning chains
 - [x] Using an unified interface to try out different providers
+- [x] Configuring the app from the sidebar
+
+## Providers
+
+- [x] Ollama (local)
+- [x] Perplexity (remote, requires API key)
+- [x] Groq (remote, requires API key)
 
 ## Work in progress
 
 - [ ] Add more providers
-- [ ] Use something like LiteLLM to unify models code and avoid repeating code for each provider
 
 ## Example
 
@@ -61,12 +64,12 @@ To use the launcher, follow these instructions:
    cp example.env .env
    ```
 
-3. Edit the .env file with your API keys / models preferences.
+3. Edit the .env file with your API keys / models preferences (or do it from the app's configuration menu)
 
 4. Run the main interface
 
    ```
-   streamlit run main.py
+   streamlit run app/main.py
    ```
 
 ---
diff --git a/__pycache__/api_handlers.cpython-310.pyc b/__pycache__/api_handlers.cpython-310.pyc
deleted file mode 100644
index 275a2fc..0000000
Binary files a/__pycache__/api_handlers.cpython-310.pyc and /dev/null differ
diff --git a/__pycache__/utils.cpython-310.pyc b/__pycache__/utils.cpython-310.pyc
deleted file mode 100644
index b607340..0000000
Binary files a/__pycache__/utils.cpython-310.pyc and /dev/null differ
diff --git a/app/logger.py b/app/logger.py
new file mode 100644
index 0000000..52eeeec
--- /dev/null
+++ b/app/logger.py
@@ -0,0 +1,27 @@
+import logging
+import os
+from datetime import datetime
+
+def setup_logger():
+    # Create a logs directory if it doesn't exist
+    log_dir = os.path.join(os.path.dirname(os.path.dirname(__file__)), 'logs')
+    os.makedirs(log_dir, exist_ok=True)
+
+    # Create a unique log file name based on the current timestamp
+    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+    log_file = os.path.join(log_dir, f"multi1_{timestamp}.log")
+
+    # Configure the logger
+    logging.basicConfig(
+        level=logging.INFO,
+        format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+        handlers=[
+            logging.FileHandler(log_file),
+            logging.StreamHandler()  # This will also print logs to console
+        ]
+    )
+
+    return logging.getLogger('multi1')
+
+# Create a global logger instance
+logger = setup_logger()
\ No newline at end of file
diff --git a/app/main.py b/app/main.py
index 696268a..b460c6e 100644
--- a/app/main.py
+++ b/app/main.py
@@ -3,6 +3,7 @@ from dotenv import load_dotenv
 from api_handlers import OllamaHandler, PerplexityHandler, GroqHandler
 from utils import generate_response
 from config_menu import config_menu, display_config
+from logger import logger
 import os
 
 # Load environment variables
@@ -36,6 +37,7 @@ def get_api_handler(backend, config):
         return GroqHandler(config['GROQ_API_KEY'], config['GROQ_MODEL'])
 
 def main():
+    logger.info("Starting the application")
     setup_page()
 
     st.sidebar.markdown('<h3 class="sidebar-title">⚙️ Settings</h3>', unsafe_allow_html=True)
@@ -44,26 +46,35 @@ def main():
     backend = st.sidebar.selectbox("Choose AI Backend", ["Ollama", "Perplexity AI", "Groq"])
     display_config(backend, config)
     api_handler = get_api_handler(backend, config)
+    logger.info(f"Selected backend: {backend}")
 
     user_query = st.text_input("💬 Enter your query:", placeholder="e.g., How many 'R's are in the word strawberry?")
 
     if user_query:
+        logger.info(f"Received user query: {user_query}")
         st.write("🔍 Generating response...")
         response_container = st.empty()
         time_container = st.empty()
 
-        for steps, total_thinking_time in generate_response(user_query, api_handler):
-            with response_container.container():
-                for title, content, _ in steps:
-                    if title.startswith("Final Answer"):
-                        st.markdown(f'<h3 class="expander-title">🎯 {title}</h3>', unsafe_allow_html=True)
-                        st.markdown(f'<div>{content}</div>', unsafe_allow_html=True)
-                    else:
-                        with st.expander(f"📝 {title}", expanded=True):
+        try:
+            for steps, total_thinking_time in generate_response(user_query, api_handler):
+                with response_container.container():
+                    for title, content, _ in steps:
+                        if title.startswith("Final Answer"):
+                            st.markdown(f'<h3 class="expander-title">🎯 {title}</h3>', unsafe_allow_html=True)
                             st.markdown(f'<div>{content}</div>', unsafe_allow_html=True)
+                            logger.info(f"Final answer generated: {content}")
+                        else:
+                            with st.expander(f"📝 {title}", expanded=True):
+                                st.markdown(f'<div>{content}</div>', unsafe_allow_html=True)
+                            logger.debug(f"Step completed: {title}")
 
-            if total_thinking_time is not None:
-                time_container.markdown(f'<p class="thinking-time">⏱️ Total thinking time: {total_thinking_time:.2f} seconds</p>', unsafe_allow_html=True)
+                if total_thinking_time is not None:
+                    time_container.markdown(f'<p class="thinking-time">⏱️ Total thinking time: {total_thinking_time:.2f} seconds</p>', unsafe_allow_html=True)
+                    logger.info(f"Total thinking time: {total_thinking_time:.2f} seconds")
+        except Exception as e:
+            logger.error(f"Error generating response: {str(e)}", exc_info=True)
+            st.error("An error occurred while generating the response. Please try again.")
 
 if __name__ == "__main__":
     main()
\ No newline at end of file
diff --git a/static/styles.css b/static/styles.css
index d2ee572..e77fd67 100644
--- a/static/styles.css
+++ b/static/styles.css
@@ -27,3 +27,64 @@ h1, h2, h3, h4, h5, h6 {
     font-family: -apple-system, BlinkMacSystemFont, sans-serif;
     font-weight: bold;
 }
+
+@keyframes fadeIn {
+    from { opacity: 0; }
+    to { opacity: 1; }
+}
+
+@keyframes slideIn {
+    from { transform: translateY(20px); opacity: 0; }
+    to { transform: translateY(0); opacity: 1; }
+}
+
+@keyframes pulse {
+    0% { transform: scale(1); }
+    50% { transform: scale(1.05); }
+    100% { transform: scale(1); }
+}
+
+/* Apply fade-in animation to main content */
+.main .block-container {
+    animation: fadeIn 0.5s ease-out;
+}
+
+/* Apply slide-in animation to expanders */
+.streamlit-expanderHeader {
+    animation: slideIn 0.3s ease-out;
+    transition: background-color 0.3s ease;
+}
+
+/* Smooth transition for expander content */
+.streamlit-expanderContent {
+    transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
+}
+
+/* Pulse animation for thinking time */
+.thinking-time {
+    animation: pulse 2s infinite;
+}
+
+/* Hover effect for buttons */
+.stButton > button {
+    transition: all 0.3s ease;
+}
+
+.stButton > button:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
+}
+
+/* Smooth transition for selectbox */
+.stSelectbox {
+    transition: all 0.3s ease;
+}
+
+/* Subtle hover effect for text input */
+.stTextInput > div > div > input {
+    transition: all 0.3s ease;
+}
+
+.stTextInput > div > div > input:hover {
+    box-shadow: 0 0 0 1px rgba(49, 51, 63, 0.2);
+}