/* Topology Live Status */
.status-online { transition: filter 0.3s ease; }
.status-offline { transition: filter 0.3s ease; }

/* Pulse animation for online nodes */
@keyframes topo-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}
.status-online { animation: topo-pulse 2s ease-in-out infinite; }