:root{--hub-launcher-size:68px;--hub-launcher-collar:8px;--hub-nav-bar:62px;--hub-launcher-rise:calc(var(--hub-launcher-size) + 2 * var(--hub-launcher-collar) - 40px);--hub-nav-clearance:calc(env(safe-area-inset-bottom) + var(--hub-nav-bar) + var(--hub-launcher-rise) + 8px)}