/**
 * z-index tokens.
 *
 * Aligned with MUI's default stacking context so custom layers compose
 * predictably with MUI overlays (Drawer, Modal, Snackbar, Tooltip).
 */
export declare const zIndex: {
    readonly hide: -1;
    readonly base: 0;
    readonly docked: 10;
    readonly sticky: 1100;
    readonly appBar: 1100;
    readonly banner: 1150;
    readonly overlay: 1200;
    readonly drawer: 1200;
    readonly modal: 1300;
    readonly popover: 1400;
    readonly snackbar: 1400;
    readonly tooltip: 1500;
};
export type ZIndexToken = keyof typeof zIndex;