export interface OfflineBannerProps {
    /** Offline copy. Default: "You're offline — changes will sync when you reconnect." */
    message?: string;
    /** Reconnect confirmation copy. Default: "Back online". */
    onlineMessage?: string;
    className?: string;
}
/**
 * OfflineBanner — the global connectivity banner (spec §5.6).
 *
 * Pinned below the safe-area/top-bar, non-blocking, and never color-only (icon
 * + text). Stays up for the whole outage, then flashes a brief "Back online"
 * confirmation and hides itself. Connectivity comes from `useNetworkStatus()`
 * (shell-native `burdenoff:networkStatusChange` on native, browser
 * `online`/`offline` on web), so it works with or without `bootNativeShell`.
 *
 * Mount it once per shell, inside the app root (above the router outlet).
 *
 * DOM contract: `[data-offline-banner]` with `data-state="offline" | "online"`.
 */
export declare function OfflineBanner({ message, onlineMessage, className, }: OfflineBannerProps): import("react/jsx-runtime").JSX.Element | null;
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