@keyframes heartbeat{0%{transform:scale(1);box-shadow:0 0 #00ff00b3}30%{transform:scale(1.18);box-shadow:0 0 0 8px #0f03}40%{transform:scale(1.08);box-shadow:0 0 0 4px #00ff0026}60%{transform:scale(1.18);box-shadow:0 0 0 8px #0f03}to{transform:scale(1);box-shadow:0 0 #00ff001a}}.heartbeat-dot{width:18px;height:18px;border-radius:50%;background:#00ff00;box-shadow:0 0 #00ff00b3;animation:heartbeat 1.5s infinite;display:inline-block;vertical-align:middle}