import { type ReactNode } from "react";
/**
 * The surface-owned sections of the session shell. Every slot is optional: a
 * surface without a workspace switcher, workspace navigation or footer simply
 * leaves them out and the shell keeps its layout.
 */
export type SessionShellSlots = Readonly<{
    /** The workspace switcher under the brand row (or under the window controls). */
    switcher?: ReactNode;
    /** Primary navigation after "New session" (inbox, workspace shortcuts). */
    primaryNav?: ReactNode;
    /**
     * The phone drawer's "Workspace" tab. Without it, phones show the sessions
     * list alone, with no tabs.
     */
    mobileWorkspacePanel?: ReactNode;
    /** Pinned under the rail's scroll viewport: account menu, offers. */
    railFooter?: ReactNode;
    /** Notices across the top of the canvas, under the top strip. */
    canvasBanners?: ReactNode;
}>;
export declare const SessionShellSlotsContext: import("react").Context<Readonly<{
    /** The workspace switcher under the brand row (or under the window controls). */
    switcher?: ReactNode;
    /** Primary navigation after "New session" (inbox, workspace shortcuts). */
    primaryNav?: ReactNode;
    /**
     * The phone drawer's "Workspace" tab. Without it, phones show the sessions
     * list alone, with no tabs.
     */
    mobileWorkspacePanel?: ReactNode;
    /** Pinned under the rail's scroll viewport: account menu, offers. */
    railFooter?: ReactNode;
    /** Notices across the top of the canvas, under the top strip. */
    canvasBanners?: ReactNode;
}>>;
/** Supplies the slots to a rail rendered outside `SessionShell` (previews, fixtures). */
export declare function SessionShellSlotsProvider({ slots, children, }: {
    slots: SessionShellSlots;
    children: ReactNode;
}): import("react").JSX.Element;
/**
 * The top of the main rail: a brand row (the mark and the "Opengeni" wordmark)
 * and, under it, the workspace picker at full rail width. Its spacing matches
 * the settings rail's top (12px, 32px brand row, 12px gap) so switching
 * between the two rails doesn't jump. The collapse toggle sits at the right end
 * of the brand row; collapsed, only the mark stays, with the expand toggle
 * under it. In the macOS app the row holds just the toggle beside the window
 * controls.
 */
export declare function RailHeader({ showSwitcher }: {
    showSwitcher?: boolean;
}): import("react").JSX.Element;
/** "New session" followed by the surface's own primary navigation. */
export declare function PrimaryNav(): import("react").JSX.Element;