import type { Snippet } from 'svelte';
interface PanelHeaderProps {
    title: string;
    /** Optional secondary line under the title */
    description?: string;
    collapsible?: boolean;
    collapsed?: boolean;
    /**
     * subtle — soft bar (default, docks)
     * solid — opaque elevated strip
     * ghost — no fill, only bottom rule
     */
    variant?: 'subtle' | 'solid' | 'ghost';
    size?: 'sm' | 'md';
    class?: string;
    icon?: Snippet;
    actions?: Snippet;
    ontoggle?: (collapsed: boolean) => void;
}
declare const PanelHeader: import("svelte").Component<PanelHeaderProps, {}, "collapsed">;
type PanelHeader = ReturnType<typeof PanelHeader>;
export default PanelHeader;