import { LitElement } from 'lit';
/**
 * Slotted tablist and panel coordinator.
 *
 * @slot tabs - Tab buttons or links.
 * @slot - Tab panels.
 * @csspart chrome - The outer tabs frame.
 * @csspart tablist - The tab row.
 * @csspart panels - The panel stack.
 */
export declare class W1cTabs extends LitElement {
    selected: number;
    private tabsSlot?;
    private panelsSlot?;
    render(): import("lit").TemplateResult<1>;
    protected updated(changedProperties: Map<string, unknown>): void;
    private syncTabs;
    private handleTabClick;
    private handleTabKeydown;
    private selectTab;
    private getTabs;
    private getPanels;
    private isDisabled;
    private getNextEnabledTabIndex;
    static styles: import("lit").CSSResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'w1c-tabs': W1cTabs;
    }
}