import { LitElement, CSSResultGroup } from 'lit';
import { PdFooterLink, PdFooterMadeBy, PdFooterSection } from '../types';
import { SocialEntry } from '@progressive-development/pd-composite';
/**
 * Modern mega-footer with hierarchical sections, social media, and legal links.
 *
 * @summary Footer with section columns, social icons, legal links, and slots.
 *
 * @tagname pd-footer
 *
 * @event footer-link - Fired when a section link or legal link is clicked.
 *
 * @slot logo - Company or brand logo, rendered above sections.
 * @slot extra - Custom content (newsletter, CTA), rendered beside sections on desktop.
 *
 * @cssprop --pd-footer-bg-col - Footer background (color or gradient). Default: `var(--pd-default-col)`.
 * @cssprop --pd-footer-font-col - Footer text color. Default: `var(--pd-on-primary-col)`.
 * @cssprop --pd-footer-gradient - Gradient overlay for bg-image. Default: `none`.
 * @cssprop --pd-footer-text-shadow - Text shadow for readability over images. Default: `none`.
 * @cssprop --pd-footer-bg-size - CSS background-size for the bg image. Default: `cover`.
 * @cssprop --pd-footer-bg-repeat - CSS background-repeat for the bg image. Default: `no-repeat`.
 * @cssprop --pd-footer-bg-attachment - CSS background-attachment for the bg image. Default: `scroll`.
 * @cssprop --pd-footer-bg-position - CSS background-position for the bg image. Default: `center`.
 * @cssprop --pd-footer-font-family - Footer font family. Default: `var(--pd-default-font-link-family)`.
 * @cssprop --pd-footer-font-size - Footer font size. Default: `1em`.
 * @cssprop --pd-footer-max-width - Max width of content area. Default: `var(--pd-content-max-width, 1170px)`.
 * @cssprop --pd-footer-padding - Main content padding. Default: `var(--pd-spacing-lg) var(--pd-spacing-md)`.
 * @cssprop --pd-footer-section-gap - Gap between section columns. Default: `var(--pd-spacing-lg)`.
 * @cssprop --pd-footer-heading-font-size - Section heading size. Default: `1.1em`.
 * @cssprop --pd-footer-heading-font-weight - Section heading weight. Default: `bold`.
 * @cssprop --pd-footer-link-font-size - Section link size. Default: `0.95em`.
 * @cssprop --pd-footer-link-hover-col - Link hover color. Default: `var(--pd-default-hover-col)`.
 * @cssprop --pd-footer-social-icon-size - Social icon size. Default: `2.5rem`.
 * @cssprop --pd-footer-social-gap - Social icon spacing. Default: `var(--pd-spacing-sm)`.
 * @cssprop --pd-footer-divider-col - Divider color. Default: `rgba(255,255,255,0.15)`.
 * @cssprop --pd-footer-bottom-col - Bottom bar background. Default: `var(--pd-default-light-col)`.
 * @cssprop --pd-footer-bottom-font-size - Bottom bar font size. Default: `0.9em`.
 * @cssprop --pd-footer-bottom-font-col - Bottom bar text color. Default: `var(--pd-default-dark-col)`.
 */
export declare class PdFooter extends LitElement {
    /** Hierarchical navigation sections (columns on desktop, accordions on mobile). */
    sections: PdFooterSection[];
    /** Social media links. Resolved against SOCIAL_PROVIDERS for icons and URLs. */
    socialLinks: SocialEntry[];
    /** Legal / bottom-bar links (e.g., Privacy, Imprint, Terms). */
    legalLinks: PdFooterLink[];
    /** Copyright text, e.g. "2026 PD Progressive Development UG". */
    copyright: string;
    /** Version string, e.g. "v1.2.3". Hidden by default. */
    version: string;
    /** Whether to show the version string in the bottom bar. */
    showVersion: boolean;
    /** Developer or agency reference with text and email/link. */
    madeBy?: PdFooterMadeBy;
    /** Background image URL for the footer main area. */
    bgImage: string;
    private _isMobile;
    private _openSections;
    private _mediaQueryList?;
    private _boundMediaQueryHandler;
    static styles: CSSResultGroup;
    connectedCallback(): void;
    disconnectedCallback(): void;
    render(): import('lit').TemplateResult<1>;
    private _renderSections;
    private _renderAccordion;
    private _renderSocialLinks;
    private _renderBottomBar;
    private _footerLinkClicked;
    private _handleLinkKeydown;
    private _toggleSection;
    private _handleSectionKeydown;
    private _clickMadeBy;
    private _handleMadeByKeydown;
    private _handleMediaQuery;
    private _findProvider;
    private _toSocialUrl;
}
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