/**
 * USWDS Character Count Behavior
 *
 * Mirrors official USWDS character count JavaScript behavior exactly
 *
 * @uswds-source https://github.com/uswds/uswds/blob/develop/packages/usa-character-count/src/index.js
 * @uswds-version 3.10.0
 * @last-synced 2025-10-05
 * @sync-status ✅ UP TO DATE
 *
 * CRITICAL: This file replicates USWDS source code to maintain 100% behavior parity.
 * DO NOT add custom logic. ALL changes must come from USWDS source updates.
 */
declare const CHARACTER_COUNT_CLASS = "usa-character-count";
declare const FORM_GROUP_ERROR_CLASS = "usa-form-group--error";
declare const LABEL_ERROR_CLASS = "usa-label--error";
declare const INPUT_ERROR_CLASS = "usa-input--error";
declare const VALIDATION_MESSAGE = "The content is too long.";
declare const MESSAGE_INVALID_CLASS = "usa-character-count__status--invalid";
declare const STATUS_MESSAGE_CLASS = "usa-character-count__status";
declare const STATUS_MESSAGE_SR_ONLY_CLASS = "usa-character-count__sr-status";
declare const DEFAULT_STATUS_LABEL = "characters remaining";
/**
 * Create and append status messages for visual and screen readers
 *
 * SOURCE: index.js (Lines 70-90)
 * MODIFICATION: Check if elements already exist (Lit pre-renders them) before creating
 *
 * @param characterCountEl - Div with `.usa-character-count` class
 * @description Create two status messages for number of characters left;
 * one visual status and another for screen readers
 */
declare const createStatusMessages: (characterCountEl: HTMLElement) => void;
/**
 * Returns message with how many characters are left
 *
 * SOURCE: index.js (Lines 97-113)
 *
 * @param currentLength - The number of characters used
 * @param maxLength - The total number of characters allowed
 * @returns A string description of how many characters are left
 */
declare const getCountMessage: (currentLength: number, maxLength: number) => string;
/**
 * Update the character count component
 *
 * SOURCE: index.js (Lines 132-173)
 *
 * @description On input, it will update visual status, screenreader
 * status and update input validation (if over character length)
 * @param inputEl - The character count input element
 */
declare const updateCountMessage: (inputEl: HTMLInputElement | HTMLTextAreaElement) => void;
/**
 * Initialize component
 *
 * SOURCE: index.js (Lines 180-190)
 *
 * @description On init this function will create elements and update any
 * attributes so it can tell the user how many characters are left.
 * @param inputEl - the components input
 */
declare const enhanceCharacterCount: (inputEl: HTMLInputElement | HTMLTextAreaElement) => void;
/**
 * Initialize character count behavior
 *
 * SOURCE: index.js (Lines 192-213)
 *
 * @param root - Root element or document
 * @returns Cleanup function
 */
export declare function initializeCharacterCount(root?: HTMLElement | Document): () => void;
export { enhanceCharacterCount, getCountMessage, updateCountMessage, createStatusMessages, CHARACTER_COUNT_CLASS, FORM_GROUP_ERROR_CLASS, LABEL_ERROR_CLASS, INPUT_ERROR_CLASS, MESSAGE_INVALID_CLASS, VALIDATION_MESSAGE, STATUS_MESSAGE_CLASS, STATUS_MESSAGE_SR_ONLY_CLASS, DEFAULT_STATUS_LABEL, };
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