water_sensor_theme:
  card_mod_style: |
    @keyframes pulse {
      0% { 
        box-shadow: 0 0 0 0px rgba(255, 68, 68, 0.7);
      }
      70% { 
        box-shadow: 0 0 0 15px rgba(255, 68, 68, 0);
      }
      100% { 
        box-shadow: 0 0 0 0px rgba(255, 68, 68, 0);
      }
    }