Update app.css

app.css

@@ -65,13 +65,20 @@ h1 {
     text-decoration: underline;
 }
 
+/* Highlight dead links */
 .dead-link {
     background-color: #FFF59D; /* Yellow background */
 }
 
 .dead-link .card-content h3,
-.dead-link .card-content p {
-    color: #D32F2F; /* Red text */
+.dead-link .card-content p,
+.dead-link .card-content a {
+    color: #D32F2F !important; /* Red text */
+}
+
+.dead-link .card-content a:hover {
+    text-decoration: underline;
+    color: #B71C1C !important; /* Darker red on hover */
 }
 
 @media screen and (max-width: 600px) {