diff --git a/templates/index.html b/templates/index.html
index d776989..b7b5d73 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -676,6 +676,8 @@
         .chat-input-container { padding: 0.75rem; gap: 0.5rem; }
         .vnc-link { color: var(--accent); font-size: 0.75rem; text-decoration: none; display: flex; align-items: center; gap: 0.25rem; }
         .vnc-link:hover { text-decoration: underline; }
+        @keyframes blink-red { 0% { background-color: var(--danger); box-shadow: 0 0 0px var(--danger); } 50% { background-color: #ff4d4d; box-shadow: 0 0 15px #ff4d4d; } 100% { background-color: var(--danger); box-shadow: 0 0 0px var(--danger); } }
+        .vnc-active-blink { animation: blink-red 2s infinite ease-in-out !important; color: white !important; }
     </style>
 </head>
 
@@ -1002,10 +1004,14 @@
                 const lnk = document.getElementById('vnc-link');
                 if (data.vnc_status === 'on') {
                     txt.textContent = 'Desligar VNC';
-                    btn.classList.add('btn-success');
+                    btn.classList.add('vnc-active-blink');
+                    btn.classList.add('btn-danger');
+                    btn.classList.remove('btn-success');
                     if (lnk) lnk.classList.remove('hidden');
                 } else {
                     txt.textContent = 'Ligar VNC';
+                    btn.classList.remove('vnc-active-blink');
+                    btn.classList.remove('btn-danger');
                     btn.classList.remove('btn-success');
                     if (lnk) lnk.classList.add('hidden');
                 }