Quartr Selection Liquid Glass Pulse Interaction

This interaction showcases a highly polished multi-selection toggle pattern. When items are selected or deselected, the inner radio-style indicators animate with a fluid, liquid-like scaling effect. The inner dot shrinks down to zero or expands outward with a subtle springy bounce, mimicking a droplet of liquid. The container itself features a dark glassmorphic style, and the staggered animation of multiple checkboxes creates a cohesive, premium feel.