@@keyframes pulse-ring {
            0% { transform: scale(0.8); box-shadow: 0 0 0 0 rgba(var(--pulse-color), 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(var(--pulse-color), 0); }
            100% { transform: scale(0.8); box-shadow: 0 0 0 0 rgba(var(--pulse-color), 0); }
        }
        
        .pulse-ring {
            animation: pulse-ring 2s infinite;
        }
        
        #marker-san-blas { --pulse-color: 250, 204, 21; } /* yellow */
        #marker-quillabamba { --pulse-color: 37, 99, 235; } /* blue */
        #marker-finca-bella { --pulse-color: 22, 163, 74; } /* green */
        #marker-peak-espresso { --pulse-color: 220, 38, 38; } /* red */
        
        .active-legend {
            color: #DC2626 !important;
        }