👉 The navigation fluid refers to the seamless, dynamic movement of elements within a user interface, particularly in applications with complex navigation structures. It ensures that as users interact with the interface—such as clicking on menu items, swiping through tabs, or scrolling through lists—the changes are smooth and intuitive, maintaining the visual flow and coherence of the design. This fluidity enhances user experience by reducing cognitive load and making navigation feel natural, as if the elements are moving together in a cohesive manner, rather than jumping abruptly from one part of the interface to another.