Update alert text color to black for better readability

src/streamlit_app.py

@@ -378,6 +378,20 @@ st.markdown("""
         border-radius: 1rem;
         margin: 1.5rem 0;
         box-shadow: 0 2px 8px rgba(0,0,0,0.05);
+        color: #2E2E2E;
+    }
+
+    .alert strong {
+        color: #2E2E2E;
+    }
+
+    .alert a {
+        color: #2E2E2E;
+        text-decoration: underline;
+    }
+
+    .alert a:hover {
+        color: #000000;
     }
 </style>
 """, unsafe_allow_html=True)