Update tab styling with refined color scheme and hover effects

- Modify default tab background color from gold to goldenrod
- Add border highlight for selected tab
- Adjust hover state background color for improved visual feedback

app.py

@@ -40,7 +40,7 @@ st.markdown("""
     .stTabs [data-baseweb="tab"] {
         height: 50px;
         white-space: pre-wrap;
-        background-color: #FFD700;
+        background-color: #DAA520;
         color: white;
         border-radius: 10px;
         gap: 1px;
@@ -51,11 +51,12 @@ st.markdown("""
 
     .stTabs [aria-selected="true"] {
         background-color: #DAA520;
+        border: 3px solid #FFD700;
         color: white;
     }
 
     .stTabs [data-baseweb="tab"]:hover {
-        background-color: #DAA520;
+        background-color: #FFD700;
         cursor: pointer;
     }
 </style>""", unsafe_allow_html=True)