fullscreen-video-gesture-overlay

The gesture and chrome layers of a fullscreen video screen — tap anywhere to toggle the controls, double-tap either half to seek, an auto-hide timer that every interaction postpones, and a picture-in-picture (PiP) guard that removes both layers. Use when single taps work on only half the screen, when the controls vanish while the user is dragging the seek bar, when the seek thumb snaps back under the finger, when a…