[untitled] Folder Interaction Concept

This interaction showcases a highly tactile drag-and-drop system for organizing cards. When a user long-presses and drags a card, it shrinks slightly and follows the finger with a responsive spring. Hovering the dragged card over another card morphs the target card into a folder preview, updating the text to 'Add to folder' and displaying a stacked thumbnail layout. Releasing the card merges it into the folder with a satisfying bounce. Dragging cards around also triggers smooth, springy grid reordering, where neighboring cards slide out of the way to accommodate the dragged item.