/**
 * The paint order of everything the kit puts at the top of the document. Overlays (`Dialog`, `Drawer`,
 * `FileGalleryDialog`, `Alert`) share one rung, so DOM order breaks ties — and the body-level box exists
 * only while open, so DOM order is open order (Base UI's `Dialog.Portal` renders nothing until mounted;
 * `keepMounted` would break it). A box held while closed claims its slot at first paint, and a drawer
 * opened later silently covers every control of it.
 *
 * The published ladder, for anything outside the kit that must clear an overlay:
 *
 *   9999    every overlay, and `Popover`                (`OVERLAY_Z`)
 *   10000   `Tooltip`, `Alert`                          (`OVERLAY_Z_ABOVE`)
 *   10001   a transient notification / toast            (`NOTIFICATION_Z`)
 *   10002   the skip link                               (`SKIP_LINK_Z`)
 *
 * Overlays read `--lotics-z-overlay` / `--lotics-z-overlay-above` from their sheets; these constants are
 * the measuring form `tokens_agreement.test.ts` pins them against.
 */
/** Shared with `Popover` on purpose: all portal and hold a box only while open, so one number plus open
 *  order puts the last-opened on top. */
export declare const OVERLAY_Z = 9999;
/** A tooltip and an alert are about the surface under them, so it can never cover them. */
export declare const OVERLAY_Z_ABOVE: number;
/** Over the alert, since the action a toast reports is often the one the alert confirmed. */
export declare const NOTIFICATION_Z: number;
/** The first thing a keyboard reaches. */
export declare const SKIP_LINK_Z: number;