Update radio button styling: Revert to white background with black text and add border

Modified radio button CSS to change background color from gold to white, adjust text color to black, and introduce a black border for improved visual clarity and contrast.

app.py

@@ -53,12 +53,13 @@ st.markdown("""
             
     .stRadio [data-baseweb="radio"] {
         white-space: pre-wrap;
-        background-color: #FFD700;
-        color: white;
+        background-color: white;
+        color: black;
         border-radius: 10px;
         gap: 1px;
         font-weight: bold;
         transition: all 0.3s ease;
+        border: 2px solid black;
     }
             
     .stRadio [tabindex="0"] {