/* Shared shell scale. Module-local stacking must remain within its own context. */
:root{--z-base:0;--z-sticky:100;--z-dropdown:400;--z-dock:800;--z-drawer:900;--z-modal:1000;--z-popover:1100;--z-toast:1200;--z-loader:1300;--safe-bottom:0px;--touch-target:44px}