/**
 * @fileoverview Border Glow - Visual indicator for active AI sessions
 *
 * Provides a glowing border effect around the page to indicate when the AI is active.
 * The border is implemented as a fixed overlay with pointer-events disabled to
 * avoid interfering with page interaction.
 *
 * @module @vowel.to/client/ui
 * @author vowel.to
 * @license Proprietary
 */
/**
 * Border glow configuration
 */
export interface BorderGlowConfig {
    /** Whether the glow is enabled */
    enabled: boolean;
    /** Glow color (CSS color value) */
    color?: string;
    /** Glow intensity (blur radius in pixels) */
    intensity?: number;
    /** Glow width (box-shadow spread in pixels) */
    width?: number;
    /** Animation duration in milliseconds */
    animationDuration?: number;
    /** Z-index for positioning */
    zIndex?: number;
    /** Whether to show pulsing animation */
    pulse?: boolean;
}
/**
 * Border Glow Manager
 *
 * Manages the lifecycle and appearance of the border glow effect.
 *
 * @example
 * ```typescript
 * const borderGlow = new BorderGlowManager({
 *   enabled: true,
 *   color: 'rgba(99, 102, 241, 0.5)',
 *   pulse: true
 * });
 *
 * // Show the glow
 * borderGlow.show();
 *
 * // Hide the glow
 * borderGlow.hide();
 *
 * // Cleanup
 * borderGlow.destroy();
 * ```
 */
export declare class BorderGlowManager {
    private config;
    private element;
    private isVisible;
    private styleElement;
    constructor(config: BorderGlowConfig);
    /**
     * Initialize the border glow element and styles
     */
    private initialize;
    /**
     * Show the border glow
     */
    show(): void;
    /**
     * Hide the border glow
     */
    hide(): void;
    /**
     * Toggle the border glow
     */
    toggle(): void;
    /**
     * Check if the glow is currently visible
     */
    isActive(): boolean;
    /**
     * Update the glow configuration
     */
    updateConfig(config: Partial<BorderGlowConfig>): void;
    /**
     * Get current configuration
     */
    getConfig(): Required<BorderGlowConfig>;
    /**
     * Enable the border glow
     */
    enable(): void;
    /**
     * Disable the border glow
     */
    disable(): void;
    /**
     * Cleanup and remove the border glow
     */
    destroy(): void;
}
/**
 * Create a border glow instance with default configuration
 */
export declare function createBorderGlow(config?: Partial<BorderGlowConfig>): BorderGlowManager;
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