/**
 * ThemeManager - handles theme switching and persistence
 */
import type { ThemeConfig } from '../types';
export interface ThemeManagerConfig {
    /** localStorage key for theme persistence */
    storageKey: string;
    /** Available themes */
    themes: ThemeConfig[];
    /** Default theme if none saved */
    defaultTheme: string;
}
export declare class ThemeManager {
    private storageKey;
    private themes;
    private defaultTheme;
    constructor(config: ThemeManagerConfig);
    /**
     * Apply saved theme immediately (call before DOM ready).
     * This is a static method to be called as IIFE at module load time
     * to prevent flash of default theme.
     *
     * @example
     * // In browser-entry.ts, call immediately:
     * ThemeManager.applyEarlyTheme('dungeo-theme');
     */
    static applyEarlyTheme(storageKey: string): void;
    /**
     * Get saved theme from localStorage
     */
    getSavedTheme(): string;
    /**
     * Save theme to localStorage
     */
    saveTheme(theme: string): void;
    /**
     * Apply a theme to the document and update menu checkmarks
     */
    applyTheme(theme: string): void;
    /**
     * Update theme option checkmarks in the menu. Per ADR-170, the
     * theme picker uses `.sharpee-menu-option[data-theme]` items and the
     * `--checked` state modifier marks the active selection.
     */
    updateMenuCheckmarks(activeTheme: string): void;
    /**
     * Get the available themes
     */
    getThemes(): ThemeConfig[];
    /**
     * Get the default theme
     */
    getDefaultTheme(): string;
}
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