Fine-tune radio button CSS selectors and styling

Updated radio button CSS to improve selector specificity and visual design. Adjusted border radius, hover effects, and selection state to enhance the interactive styling of radio buttons in the Streamlit application.

app.py

@@ -55,18 +55,18 @@ st.markdown("""
         white-space: pre-wrap;
         background-color: #FFD700;
         color: white;
-        border-radius: 1px;
+        border-radius: 10px;
         gap: 1px;
         font-weight: bold;
         transition: all 0.3s ease;
     }
             
-    .stRadio [aria-selected="true"] {
+    .stRadio [tabindex="0"] {
         background-color: #DAA520;
         color: white;
     }
 
-    .stRadio [data-baseweb="tab"]:hover {
+    .stRadio [data-baseweb="radio"]:hover {
         background-color: #DAA520;
         cursor: pointer;
     }