Tab rail
App-scoped bottom tab rail with an animated active indicator pill. Different from the mobile-shell bottom-nav-bar by being page-bound, not viewport-bound.
Production answer
Tab rail is a reusable Oak Flats Muffler Men UI primitive with documented states, accessibility expectations, theme behavior, and implementation evidence.
Primary CTAReview Tab rail states
Generative search brief
Tab rail: App-scoped bottom tab rail with an animated active indicator pill. Different from the mobile-shell bottom-nav-bar by being page-bound, not viewport-bound.
Live tab rail previewTab · rail