Update Dockerfile to use Python 3.13.5 and enhance Streamlit app styling with improved spacing and element dimensions for better UI consistency.

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9-slim
+FROM python:3.13.5-slim
 
 WORKDIR /app
 

src/streamlit_app.py

@@ -36,25 +36,26 @@ st.markdown("""
 <style>
     /* Tab styling */
     .stElementContainer [data-baseweb="button-group"] {
-        gap: 8px;
+        gap: 2.000rem;
         padding: 4px;
     }
     .stElementContainer [kind="segmented_control"] {
-        height: 45px;
+        height: 2.000rem;
         white-space: pre-wrap;
         background-color: #DAA520;
         color: white;
-        border-radius: 10px;
+        border-radius: 20px;
         gap: 1px;
         padding: 10px 20px;
         font-weight: bold;
         transition: all 0.3s ease;
     }
     .stElementContainer [kind="segmented_controlActive"] {
-        height: 50px;
+        height: 3.000rem;
         background-color: #DAA520;
         border: 3px solid #FFD700;
-        color: white;
+        border-radius: 10px;
+        color: black;
     }
     .stElementContainer [kind="segmented_control"]:hover {
         background-color: #FFD700;