/*!
 * Acessivel.js — Widget de acessibilidade embarcável
 * ---------------------------------------------------
 * Uso básico (qualquer site):
 *   <script src="acessivel.js" defer></script>
 *
 * Configuração opcional via atributos na tag <script>:
 *   data-cor="#0072BB"        Cor primária do widget
 *   data-posicao="direita"    "direita" (padrão) ou "esquerda"
 *   data-atalho="true"        Habilita atalho Ctrl+Alt+A (padrão: true)
 *   data-recolher="3500"      Tempo (ms) até o botão recolher para só o ícone.
 *                             0 = nunca recolhe (rótulo sempre visível).
 *
 * Sem dependências. ES5-compatível.
 * Compatível com VLibras: os dois podem coexistir na mesma página.
 */
(function() {
    'use strict';

    if (window.__acessivelJsCarregado) return;
    window.__acessivelJsCarregado = true;

    var STORAGE_KEY = 'acessivel-js:v1';
    var HOST_ID = 'acessivel-js-host';
    var PREFIX = 'ajs';
    var CONTRASTE_KEY = 'accessibility_highContrast';

    function lerConfig() {
        var script = document.currentScript;
        if (!script) {
            var scripts = document.getElementsByTagName('script');
            script = scripts[scripts.length - 1];
        }
        var get = function(attr, padrao) {
            var v = script ? script.getAttribute(attr) : null;
            return v === null || v === '' ? padrao : v;
        };
        return {
            cor: get('data-cor', '#0072BB'),
            posicao: get('data-posicao', 'direita'),
            atalho: get('data-atalho', 'true') !== 'false',
            recolher: parseInt(get('data-recolher', '3500'), 10),
            contrasteClasse: get('data-contraste-classe', null),
            contrasteAlvo: get('data-contraste-alvo', 'html'),
            contrasteChave: get('data-contraste-chave', null),
            contrasteFn: get('data-contraste-fn', null),
            vlibrasRoot: get('data-vlibras-root', null)
        };
    }
    var config = lerConfig();

    function chaveContraste() {
        return config.contrasteChave || CONTRASTE_KEY;
    }

    var T = {
        abrir: 'Abrir menu de acessibilidade',
        titulo: 'Acessibilidade',
        subtitulo: 'Ajuste a página do seu jeito',
        fechar: 'Fechar',
        restaurar: 'Restaurar padrões',
        perfis: 'Perfis rápidos',
        texto: 'Texto e leitura',
        cores: 'Cores e contraste',
        navegacao: 'Navegação e conteúdo',
        som: 'Som',
        baixaVisao: 'Baixa visão',
        daltonismo: 'Daltonismo',
        epilepsia: 'Epilepsia',
        tdah: 'TDAH',
        dislexia: 'Dislexia',
        tamanhoFonte: 'Tamanho da fonte',
        espacoLetras: 'Espaço entre letras',
        alturaLinha: 'Altura da linha',
        fonteLegivel: 'Fonte legível',
        contrasteEscuro: 'Contraste escuro',
        inverterCores: 'Inverter cores',
        dessaturar: 'Escala de cinza',
        saturacaoAlta: 'Saturação alta',
        cursorGrande: 'Cursor grande',
        guiaLeitura: 'Guia de leitura',
        mascaraLeitura: 'Máscara de leitura',
        destacarLinks: 'Destacar links',
        destacarTitulos: 'Destacar títulos',
        pausarAnimacoes: 'Pausar animações',
        ocultarImagens: 'Ocultar imagens',
        zoom: 'Zoom no conteúdo',
        leitorClique: 'Ler texto ao clicar',
        leitorDica: 'Com o leitor ativo, clique em qualquer texto da página para ouvi-lo.',
        libras: 'Libras',
        vlibras: 'Tradutor VLibras',
        vlibrasDica: 'Tradução para Língua Brasileira de Sinais, pelo VLibras (gov.br). Carregado apenas quando ativado.',
        ativos: 'ajuste(s) ativo(s)',
        nenhumAtivo: 'Nenhum ajuste ativo'
    };
    if (window.AcessivelJS && window.AcessivelJS.textos) {
        for (var k in window.AcessivelJS.textos) {
            if (window.AcessivelJS.textos.hasOwnProperty(k)) T[k] = window.AcessivelJS.textos[k];
        }
    }

    var padroes = {
        fonte: 0,
        letras: 0,
        linha: 0,
        zoom: 0,
        fonteLegivel: false,
        contraste: false,
        inverter: false,
        cinza: false,
        saturacao: false,
        cursor: false,
        guia: false,
        mascara: false,
        links: false,
        titulos: false,
        animacoes: false,
        imagens: false,
        leitor: false,
        vlibras: false,
        perfil: null
    };

    var estado = carregarEstado();

    function carregarEstado() {
        var salvo = null;
        try { salvo = JSON.parse(localStorage.getItem(STORAGE_KEY)); } catch (e) {}
        var s = {};
        for (var k in padroes) {
            if (padroes.hasOwnProperty(k)) {
                s[k] = salvo && salvo.hasOwnProperty(k) ? salvo[k] : padroes[k];
            }
        }
        return s;
    }

    function salvarEstado() {
        try { localStorage.setItem(STORAGE_KEY, JSON.stringify(estado)); } catch (e) {}
    }

    var PERFIS = {
        baixaVisao: { fonte: 2, zoom: 1, cursor: true, links: true },
        daltonismo: { saturacao: true, links: true },
        epilepsia: { animacoes: true, cinza: true },
        tdah: { mascara: true, animacoes: true },
        dislexia: { fonteLegivel: true, letras: 1, linha: 2 }
    };

    var CURSOR_SVG = 'data:image/svg+xml;base64,' + btoa(
        '<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 24 24">' +
        '<path d="M5 2l14 10.5-6.2 1 3.6 6.9-2.7 1.4-3.6-7L5 19z" fill="#000" stroke="#fff" stroke-width="1.4"/></svg>'
    );

    var CSS_PAGINA = [
        'html.' + PREFIX + '-contraste-nativo, html.' + PREFIX + '-contraste-nativo body { background:#000 !important; }',
        'html.' + PREFIX + '-contraste-nativo body *:not(#' + HOST_ID + ') {',
        '  background-color:#000 !important; background-image:none !important;',
        '  color:#ffe200 !important; border-color:#ffe200 !important;',
        '  text-shadow:none !important; box-shadow:none !important;',
        '}',
        'html.' + PREFIX + '-contraste-nativo body a, html.' + PREFIX + '-contraste-nativo body a * { color:#4dd2ff !important; text-decoration:underline !important; }',
        'html.' + PREFIX + '-contraste-nativo body img, html.' + PREFIX + '-contraste-nativo body svg, html.' + PREFIX + '-contraste-nativo body video { filter: brightness(.85) contrast(1.15); }',

        'html.' + PREFIX + '-inverter { filter: invert(1) hue-rotate(180deg); background:#fff; }',
        'html.' + PREFIX + '-cinza { filter: grayscale(1); }',
        'html.' + PREFIX + '-inverter.' + PREFIX + '-cinza { filter: invert(1) hue-rotate(180deg) grayscale(1); }',
        'html.' + PREFIX + '-saturacao { filter: saturate(2); }',

        'html.' + PREFIX + '-letras-1 body *:not(#' + HOST_ID + ') { letter-spacing:.08em !important; }',
        'html.' + PREFIX + '-letras-2 body *:not(#' + HOST_ID + ') { letter-spacing:.18em !important; }',

        'html.' + PREFIX + '-linha-1 body *:not(#' + HOST_ID + ') { line-height:1.6 !important; }',
        'html.' + PREFIX + '-linha-2 body *:not(#' + HOST_ID + ') { line-height:1.9 !important; }',
        'html.' + PREFIX + '-linha-3 body *:not(#' + HOST_ID + ') { line-height:2.3 !important; }',

        'html.' + PREFIX + '-fonte-legivel body *:not(#' + HOST_ID + ') { font-family: Verdana, Arial, Helvetica, sans-serif !important; }',

        'html.' + PREFIX + '-zoom-1 body { zoom:1.15; }',
        'html.' + PREFIX + '-zoom-2 body { zoom:1.3; }',
        'html.' + PREFIX + '-zoom-3 body { zoom:1.5; }',

        'html.' + PREFIX + '-cursor, html.' + PREFIX + '-cursor body *:not(#' + HOST_ID + ') { cursor:url("' + CURSOR_SVG + '") 4 2, auto !important; }',

        'html.' + PREFIX + '-links body a:not(#' + HOST_ID + ' a) {',
        '  background:#ffe200 !important; color:#00170a !important;',
        '  text-decoration:underline !important; outline:2px solid #00170a !important;',
        '}',

        'html.' + PREFIX + '-titulos body h1, html.' + PREFIX + '-titulos body h2, html.' + PREFIX + '-titulos body h3,',
        'html.' + PREFIX + '-titulos body h4, html.' + PREFIX + '-titulos body h5, html.' + PREFIX + '-titulos body h6 {',
        '  background:#d9f2e4 !important; color:#00170a !important;',
        '  outline:2px dashed #0b6b3a !important; outline-offset:2px;',
        '}',

        'html.' + PREFIX + '-animacoes body *:not(#' + HOST_ID + '), html.' + PREFIX + '-animacoes body *::before, html.' + PREFIX + '-animacoes body *::after {',
        '  animation:none !important; transition:none !important; scroll-behavior:auto !important;',
        '}',

        'html.' + PREFIX + '-imagens body img, html.' + PREFIX + '-imagens body picture, html.' + PREFIX + '-imagens body video,',
        'html.' + PREFIX + '-imagens body figure, html.' + PREFIX + '-imagens body svg:not(#' + HOST_ID + ' svg) { visibility:hidden !important; }',
        'html.' + PREFIX + '-imagens body *:not(#' + HOST_ID + ') { background-image:none !important; }',

        'html.' + PREFIX + '-ativo body :focus-visible { outline:3px solid ' + config.cor + ' !important; outline-offset:2px !important; }'
    ].join('\n');

    var COR = config.cor;
    var LADO = config.posicao === 'esquerda' ? 'left' : 'right';

    var CSS_WIDGET = [
        ':host { all: initial; }',
        ':host { --cor:' + COR + '; --tinta:#12121a; --tinta2:#6b6b7d; --linha:#e6e6ef; --superficie:#ffffff; --fundo:#f7f7fb; }',
        '*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; font-family:-apple-system, "Segoe UI", Roboto, Arial, sans-serif; }',
        'button { cursor:pointer; background:none; border:none; }',

        '.botao-flutuante {',
        '  position:fixed; bottom:28px; ' + LADO + ':28px;',
        '  height:52px; padding:0 13px; border-radius:26px;',
        '  background:var(--cor); color:#fff; z-index:2147483646;',
        '  display:flex; align-items:center; gap:9px;',
        '  font-size:14px; font-weight:600; letter-spacing:.01em; white-space:nowrap;',
        '  box-shadow:0 10px 30px -6px rgba(0,0,0,.35), 0 0 0 1px rgba(255,255,255,.12) inset;',
        '  transition:transform .18s ease, box-shadow .18s ease, padding .28s cubic-bezier(.4,0,.2,1);',
        '}',
        '.botao-flutuante:hover { transform:translateY(-2px); box-shadow:0 14px 36px -6px rgba(0,0,0,.42); }',
        '.botao-flutuante:active { transform:translateY(0); }',
        '.botao-flutuante:focus-visible { outline:3px solid #ffd53d; outline-offset:3px; }',
        '.botao-flutuante svg { width:26px; height:26px; flex:none; }',

        '.botao-flutuante .rotuloBotao {',
        '  overflow:hidden; max-width:140px; opacity:1;',
        '  transition:max-width .28s cubic-bezier(.4,0,.2,1), opacity .2s ease .06s;',
        '}',
        '.botao-flutuante.recolhido { padding:0 13px; }',
        '.botao-flutuante.recolhido .rotuloBotao {',
        '  max-width:0; opacity:0; transition:max-width .28s cubic-bezier(.4,0,.2,1), opacity .14s ease;',
        '}',
        '.botao-flutuante.recolhido { gap:0; }',
        '.botao-flutuante.recolhido:hover, .botao-flutuante.recolhido:focus-visible { gap:9px; }',
        '.botao-flutuante.recolhido:hover .rotuloBotao,',
        '.botao-flutuante.recolhido:focus-visible .rotuloBotao {',
        '  max-width:140px; opacity:1; transition:max-width .28s cubic-bezier(.4,0,.2,1), opacity .2s ease .06s;',
        '}',

        '.botao-flutuante .selo {',
        '  min-width:20px; height:20px; padding:0 5px; border-radius:10px;',
        '  background:#fff; color:var(--cor); font-size:11px; font-weight:800;',
        '  display:none; align-items:center; justify-content:center; flex:none;',
        '}',
        '.botao-flutuante .selo.visivel { display:flex; }',
        '.botao-flutuante.recolhido .selo.visivel {',
        '  position:absolute; top:-3px; ' + LADO + ':-3px;',
        '  box-shadow:0 0 0 2px var(--cor);',
        '}',
        '.botao-flutuante.recolhido:hover .selo.visivel,',
        '.botao-flutuante.recolhido:focus-visible .selo.visivel {',
        '  position:static; box-shadow:none;',
        '}',

        '.painel {',
        '  position:fixed; top:14px; bottom:14px; ' + LADO + ':14px;',
        '  width:min(390px, calc(100vw - 28px));',
        '  background:var(--fundo); color:var(--tinta);',
        '  border-radius:22px; z-index:2147483647;',
        '  box-shadow:0 30px 80px -20px rgba(10,10,30,.45), 0 0 0 1px rgba(20,20,40,.06);',
        '  display:none; flex-direction:column; overflow:hidden;',
        '  opacity:0; transform:translateY(10px) scale(.985);',
        '  transition:opacity .2s ease, transform .2s ease;',
        '}',
        '.painel.aberto { display:flex; }',
        '.painel.visivel { opacity:1; transform:none; }',

        '.cabecalho {',
        '  padding:20px 20px 16px; background:var(--superficie);',
        '  border-bottom:1px solid var(--linha); flex:none;',
        '}',
        '.topo { display:flex; align-items:flex-start; gap:12px; }',
        '.marca { width:38px; height:38px; border-radius:12px; background:var(--cor); color:#fff; display:flex; align-items:center; justify-content:center; flex:none; }',
        '.marca svg { width:22px; height:22px; }',
        '.tituloBloco { flex:1; min-width:0; padding-top:1px; }',
        '.tituloBloco h2 { font-size:17px; font-weight:700; letter-spacing:-.01em; line-height:1.2; }',
        '.tituloBloco p { font-size:12.5px; color:var(--tinta2); margin-top:2px; }',
        '.fechar {',
        '  width:34px; height:34px; border-radius:10px; flex:none;',
        '  color:var(--tinta2); display:flex; align-items:center; justify-content:center;',
        '  transition:background .15s ease, color .15s ease;',
        '}',
        '.fechar:hover { background:var(--fundo); color:var(--tinta); }',
        '.fechar:focus-visible { outline:2px solid var(--cor); outline-offset:2px; }',
        '.fechar svg { width:17px; height:17px; }',

        '.barraStatus { display:flex; align-items:center; gap:10px; margin-top:14px; }',
        '.contador { flex:1; font-size:12px; font-weight:600; color:var(--tinta2); display:flex; align-items:center; gap:7px; }',
        '.pulso { width:7px; height:7px; border-radius:50%; background:#c9c9d6; flex:none; }',
        '.contador.ligado .pulso { background:var(--cor); box-shadow:0 0 0 3px rgba(91,76,255,.16); }',
        '.contador.ligado { color:var(--cor); }',
        '.limpar {',
        '  font-size:12px; font-weight:600; color:var(--tinta2);',
        '  padding:7px 12px; border-radius:9px; border:1px solid var(--linha);',
        '  display:flex; align-items:center; gap:6px;',
        '  transition:background .15s ease, color .15s ease, border-color .15s ease;',
        '}',
        '.limpar:hover { background:var(--superficie); color:var(--tinta); border-color:#d4d4e2; }',
        '.limpar:focus-visible { outline:2px solid var(--cor); outline-offset:2px; }',
        '.limpar svg { width:13px; height:13px; }',

        '.corpo { overflow-y:auto; padding:18px 20px 24px; flex:1; }',
        '.corpo::-webkit-scrollbar { width:9px; }',
        '.corpo::-webkit-scrollbar-thumb { background:#d9d9e6; border-radius:5px; border:3px solid var(--fundo); }',
        '.corpo::-webkit-scrollbar-track { background:transparent; }',

        '.secao { margin-bottom:22px; }',
        '.secao:last-child { margin-bottom:0; }',
        '.secao h3 {',
        '  font-size:11px; font-weight:700; text-transform:uppercase;',
        '  letter-spacing:.09em; color:var(--tinta2); margin-bottom:10px; padding-left:2px;',
        '}',

        '.perfis { display:flex; flex-wrap:wrap; gap:7px; }',
        '.perfil {',
        '  border:1px solid var(--linha); background:var(--superficie); border-radius:11px;',
        '  padding:9px 13px; font-size:13px; font-weight:600; color:var(--tinta);',
        '  transition:background .15s ease, color .15s ease, border-color .15s ease, transform .12s ease;',
        '}',
        '.perfil:hover { border-color:var(--cor); color:var(--cor); }',
        '.perfil:active { transform:scale(.97); }',
        '.perfil[aria-pressed="true"] { background:var(--cor); color:#fff; border-color:var(--cor); }',
        '.perfil:focus-visible { outline:2px solid var(--cor); outline-offset:2px; }',

        '.cartao { background:var(--superficie); border:1px solid var(--linha); border-radius:14px; overflow:hidden; }',

        '.nivel { display:flex; align-items:center; gap:12px; padding:12px 14px; border-bottom:1px solid var(--linha); }',
        '.nivel:last-child { border-bottom:none; }',
        '.nivel .rotulo { flex:1; font-size:13.5px; font-weight:600; min-width:0; }',
        '.nivel .barras { display:flex; gap:3px; align-items:flex-end; height:16px; }',
        '.nivel .barra { width:4px; border-radius:2px; background:#e4e4ee; transition:background .15s ease, height .15s ease; }',
        '.nivel .barra:nth-child(1) { height:7px; }',
        '.nivel .barra:nth-child(2) { height:11px; }',
        '.nivel .barra:nth-child(3) { height:15px; }',
        '.nivel .barra.cheio { background:var(--cor); }',
        '.controles { display:flex; align-items:center; background:var(--fundo); border-radius:9px; padding:2px; gap:2px; }',
        '.controles button {',
        '  width:27px; height:27px; border-radius:7px; color:var(--tinta2);',
        '  font-size:16px; font-weight:700; line-height:1;',
        '  display:flex; align-items:center; justify-content:center;',
        '  transition:background .13s ease, color .13s ease;',
        '}',
        '.controles button:hover { background:var(--superficie); color:var(--cor); }',
        '.controles button:focus-visible { outline:2px solid var(--cor); outline-offset:1px; }',

        '.grade { display:grid; grid-template-columns:repeat(2, 1fr); gap:7px; }',
        '.grade.uma { grid-template-columns:1fr; }',
        '.opcao {',
        '  border:1px solid var(--linha); background:var(--superficie); border-radius:13px;',
        '  padding:12px; font-size:12.5px; font-weight:600; color:var(--tinta);',
        '  display:flex; align-items:center; gap:10px; text-align:left; position:relative;',
        '  transition:border-color .15s ease, background .15s ease, transform .12s ease;',
        '}',
        '.opcao .caixaIcone {',
        '  width:32px; height:32px; border-radius:9px; flex:none;',
        '  background:var(--fundo); color:var(--tinta2);',
        '  display:flex; align-items:center; justify-content:center;',
        '  transition:background .15s ease, color .15s ease;',
        '}',
        '.opcao svg { width:17px; height:17px; }',
        '.opcao span { flex:1; line-height:1.25; min-width:0; }',
        '.opcao:hover { border-color:#cfcfe0; }',
        '.opcao:active { transform:scale(.98); }',
        '.opcao[aria-pressed="true"] { border-color:var(--cor); background:rgba(91,76,255,.05); color:var(--cor); }',
        '.opcao[aria-pressed="true"] .caixaIcone { background:var(--cor); color:#fff; }',
        '.opcao:focus-visible { outline:2px solid var(--cor); outline-offset:2px; }',

        '.dica { font-size:11.5px; line-height:1.45; color:var(--tinta2); margin-top:8px; padding:0 2px; }',

        '.guia-leitura {',
        '  position:fixed; left:0; right:0; height:6px; background:var(--cor);',
        '  opacity:.9; pointer-events:none; z-index:2147483645; display:none; border-radius:3px;',
        '  box-shadow:0 0 14px rgba(91,76,255,.5);',
        '}',
        '.mascara { position:fixed; left:0; right:0; background:rgba(8,8,18,.72); pointer-events:none; z-index:2147483644; display:none; }',

        '@media (max-width: 430px) {',
        '  .painel { top:0; bottom:0; left:0; right:0; width:100vw; border-radius:0; }',
        '  .botao-flutuante { bottom:18px; ' + LADO + ':18px; }',
        '}',
        '@media (prefers-reduced-motion: reduce) {',
        '  .botao-flutuante, .painel, .opcao, .perfil { transition:none !important; }',
        '  .botao-flutuante:hover { transform:none; }',
        '}'
    ].join('\n');

    var IC = {
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        fechar: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.4" stroke-linecap="round" aria-hidden="true"><path d="M18 6L6 18M6 6l12 12"/></svg>',
        restaurar: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M3 12a9 9 0 1 0 3-6.7L3 8"/><path d="M3 3v5h5"/></svg>',
        contraste: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><circle cx="12" cy="12" r="9"/><path d="M12 3a9 9 0 0 1 0 18z" fill="currentColor" stroke="none"/></svg>',
        inverter: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M12 3v18M7 8l5-5 5 5M17 16l-5 5-5-5"/></svg>',
        cinza: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><path d="M12 3c4 5 7 8.5 7 12a7 7 0 0 1-14 0c0-3.5 3-7 7-12z"/><path d="M12 3v19"/></svg>',
        saturacao: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><path d="M12 3c4 5 7 8.5 7 12a7 7 0 0 1-14 0c0-3.5 3-7 7-12z" fill="currentColor" fill-opacity=".35"/></svg>',
        cursor: '<svg viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M5 2l14 10.5-6.2 1 3.6 6.9-2.7 1.4-3.6-7L5 19z"/></svg>',
        guia: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M3 8h18M3 12h18M3 16h10"/><rect x="2" y="10.5" width="20" height="3" rx="1.5" fill="currentColor" stroke="none" opacity=".4"/></svg>',
        mascara: '<svg viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><rect x="2" y="3" width="20" height="6" rx="1" opacity=".5"/><rect x="2" y="15" width="20" height="6" rx="1" opacity=".5"/><path d="M3 12h18" stroke="currentColor" stroke-width="2" fill="none"/></svg>',
        links: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M10 13a5 5 0 0 0 7.5.5l2-2a5 5 0 0 0-7-7l-1.2 1.2"/><path d="M14 11a5 5 0 0 0-7.5-.5l-2 2a5 5 0 0 0 7 7l1.2-1.2"/></svg>',
        titulos: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M5 4v16M15 4v16M5 12h10M19 9v11M17.5 10.5L19 9l1.5 1.5"/></svg>',
        animacoes: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><rect x="5" y="5" width="4" height="14" rx="1"/><rect x="15" y="5" width="4" height="14" rx="1"/></svg>',
        imagens: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><rect x="3" y="4" width="18" height="16" rx="2"/><circle cx="9" cy="10" r="2"/><path d="M3 17l6-5 4 3 4-4 4 4M4 3l17 18"/></svg>',
        zoom: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><circle cx="11" cy="11" r="7"/><path d="M21 21l-4.3-4.3M8 11h6M11 8v6"/></svg>',
        fonte: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M5 19L11 5l6 14M7.5 14h7M20 12v7"/></svg>',
        som: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M4 9v6h4l5 4V5L8 9H4z" fill="currentColor" stroke="none"/><path d="M16 8.5a5 5 0 0 1 0 7M18.5 6a9 9 0 0 1 0 12"/></svg>',
        libras: '<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M8 12V5.5a1.5 1.5 0 0 1 3 0V11M11 11V4a1.5 1.5 0 0 1 3 0v7M14 11V5.5a1.5 1.5 0 0 1 3 0V13"/><path d="M17 13l1.8-1.8a1.4 1.4 0 0 1 2 2L16.5 18a5 5 0 0 1-4 2H11a5 5 0 0 1-5-5v-3a1.5 1.5 0 0 1 2-1.4"/></svg>'
    };

    var host, shadow, painel, botaoAbrir, seloEl, contadorEl, guiaEl, mascaraTopo, mascaraBaixo;
    var estiloPagina;

    function montar() {
        estiloPagina = document.createElement('style');
        estiloPagina.id = 'acessivel-js-estilos';
        estiloPagina.textContent = CSS_PAGINA;
        document.head.appendChild(estiloPagina);
        document.documentElement.classList.add(PREFIX + '-ativo');

        host = document.createElement('div');
        host.id = HOST_ID;
        document.body.appendChild(host);
        shadow = host.attachShadow ? host.attachShadow({ mode: 'open' }) : host;

        var estiloWidget = document.createElement('style');
        estiloWidget.textContent = CSS_WIDGET;
        shadow.appendChild(estiloWidget);

        botaoAbrir = document.createElement('button');
        botaoAbrir.className = 'botao-flutuante';
        botaoAbrir.type = 'button';
        botaoAbrir.setAttribute('aria-label', T.abrir);
        botaoAbrir.setAttribute('aria-expanded', 'false');
        botaoAbrir.innerHTML = IC.acessibilidade +
            '<span class="rotuloBotao">' + T.titulo + '</span>' +
            '<span class="selo" aria-hidden="true">0</span>';
        botaoAbrir.addEventListener('click', alternarPainel);
        shadow.appendChild(botaoAbrir);
        seloEl = botaoAbrir.querySelector('.selo');
        agendarRecolhimento();

        guiaEl = document.createElement('div');
        guiaEl.className = 'guia-leitura';
        shadow.appendChild(guiaEl);

        mascaraTopo = document.createElement('div');
        mascaraTopo.className = 'mascara';
        mascaraBaixo = document.createElement('div');
        mascaraBaixo.className = 'mascara';
        shadow.appendChild(mascaraTopo);
        shadow.appendChild(mascaraBaixo);

        painel = document.createElement('div');
        painel.className = 'painel';
        painel.setAttribute('role', 'dialog');
        painel.setAttribute('aria-modal', 'false');
        painel.setAttribute('aria-label', T.titulo);
        painel.innerHTML = htmlPainel();
        shadow.appendChild(painel);
        contadorEl = painel.querySelector('.contador');

        ligarEventosPainel();
        aplicarTudo();
    }

    function htmlPainel() {
        function opcao(id, icone, rotulo) {
            return '<button type="button" class="opcao" data-toggle="' + id + '" aria-pressed="false">' +
                '<span class="caixaIcone">' + icone + '</span><span>' + rotulo + '</span></button>';
        }

        function nivel(id, rotulo, max) {
            var barras = '';
            for (var i = 1; i <= max; i++) barras += '<span class="barra" data-ponto="' + i + '"></span>';
            return (
                '<div class="nivel" data-nivel="' + id + '">' +
                '<span class="rotulo">' + rotulo + '</span>' +
                '<span class="barras" aria-hidden="true">' + barras + '</span>' +
                '<span class="controles">' +
                '<button type="button" data-menos aria-label="Diminuir: ' + rotulo + '">−</button>' +
                '<button type="button" data-mais aria-label="Aumentar: ' + rotulo + '">+</button>' +
                '</span>' +
                '</div>'
            );
        }

        function perfil(id, rotulo) {
            return '<button type="button" class="perfil" data-perfil="' + id + '" aria-pressed="false">' + rotulo + '</button>';
        }

        return (
            '<div class="cabecalho">' +
            '<div class="topo">' +
            '<span class="marca">' + IC.acessibilidade + '</span>' +
            '<div class="tituloBloco"><h2>' + T.titulo + '</h2><p>' + T.subtitulo + '</p></div>' +
            '<button type="button" class="fechar" data-acao="fechar" aria-label="' + T.fechar + '">' + IC.fechar + '</button>' +
            '</div>' +
            '<div class="barraStatus">' +
            '<span class="contador"><span class="pulso"></span><span class="contadorTexto">' + T.nenhumAtivo + '</span></span>' +
            '<button type="button" class="limpar" data-acao="restaurar">' + IC.restaurar + T.restaurar + '</button>' +
            '</div>' +
            '</div>' +
            '<div class="corpo">' +

            '<div class="secao"><h3>' + T.perfis + '</h3><div class="perfis">' +
            perfil('baixaVisao', T.baixaVisao) +
            perfil('daltonismo', T.daltonismo) +
            perfil('epilepsia', T.epilepsia) +
            perfil('tdah', T.tdah) +
            perfil('dislexia', T.dislexia) +
            '</div></div>' +

            '<div class="secao"><h3>' + T.texto + '</h3>' +
            '<div class="cartao">' +
            nivel('fonte', T.tamanhoFonte, 3) +
            nivel('letras', T.espacoLetras, 2) +
            nivel('linha', T.alturaLinha, 3) +
            nivel('zoom', T.zoom, 3) +
            '</div>' +
            '<div class="grade uma" style="margin-top:7px">' + opcao('fonteLegivel', IC.fonte, T.fonteLegivel) + '</div>' +
            '</div>' +

            '<div class="secao"><h3>' + T.cores + '</h3><div class="grade">' +
            opcao('contraste', IC.contraste, T.contrasteEscuro) +
            opcao('inverter', IC.inverter, T.inverterCores) +
            opcao('cinza', IC.cinza, T.dessaturar) +
            opcao('saturacao', IC.saturacao, T.saturacaoAlta) +
            '</div></div>' +

            '<div class="secao"><h3>' + T.navegacao + '</h3><div class="grade">' +
            opcao('cursor', IC.cursor, T.cursorGrande) +
            opcao('guia', IC.guia, T.guiaLeitura) +
            opcao('mascara', IC.mascara, T.mascaraLeitura) +
            opcao('links', IC.links, T.destacarLinks) +
            opcao('titulos', IC.titulos, T.destacarTitulos) +
            opcao('animacoes', IC.animacoes, T.pausarAnimacoes) +
            opcao('imagens', IC.imagens, T.ocultarImagens) +
            '</div></div>' +

            '<div class="secao"><h3>' + T.som + ' e ' + T.libras + '</h3><div class="grade">' +
            opcao('leitor', IC.som, T.leitorClique) +
            opcao('vlibras', IC.libras, T.vlibras) +
            '</div>' +
            '<p class="dica">' + T.leitorDica + '</p>' +
            '<p class="dica">' + T.vlibrasDica + '</p>' +
            '</div>' +
            '</div>'
        );
    }

    function ligarEventosPainel() {
        painel.addEventListener('click', function(ev) {
            var alvo = ev.target;
            while (alvo && alvo !== painel && !(alvo.tagName === 'BUTTON')) alvo = alvo.parentNode;
            if (!alvo || alvo === painel) return;

            var acao = alvo.getAttribute('data-acao');
            if (acao === 'fechar') { fecharPainel(); return; }
            if (acao === 'restaurar') { restaurar(); return; }

            var toggle = alvo.getAttribute('data-toggle');
            if (toggle) {
                estado[toggle] = !estado[toggle];
                estado.perfil = null;
                aplicarTudo();
                salvarEstado();
                if (toggle === 'vlibras' && estado.vlibras) fecharPainel();
                return;
            }

            var idPerfil = alvo.getAttribute('data-perfil');
            if (idPerfil) { aplicarPerfil(idPerfil); return; }

            var linha = alvo.parentNode;
            while (linha && linha !== painel && !linha.getAttribute('data-nivel')) linha = linha.parentNode;
            if (linha && linha.getAttribute && linha.getAttribute('data-nivel')) {
                var id = linha.getAttribute('data-nivel');
                var max = linha.querySelectorAll('.barra').length;
                var delta = alvo.hasAttribute('data-mais') ? 1 : -1;
                estado[id] = Math.max(0, Math.min(max, estado[id] + delta));
                estado.perfil = null;
                aplicarTudo();
                salvarEstado();
            }
        });

        shadow.addEventListener('keydown', function(ev) {
            if (ev.key === 'Escape' || ev.keyCode === 27) fecharPainel();
        });

        document.addEventListener('click', function(ev) {
            if (!painel.classList.contains('aberto')) return;
            if (ev.target === host || host.contains(ev.target)) return;
            fecharPainelSilencioso();
        }, true);

        if (config.atalho) {
            document.addEventListener('keydown', function(ev) {
                if (ev.ctrlKey && ev.altKey && (ev.key === 'a' || ev.key === 'A')) {
                    ev.preventDefault();
                    alternarPainel();
                }
            });
        }
    }

    var timerRecolher = null;

    function agendarRecolhimento() {
        if (timerRecolher) clearTimeout(timerRecolher);
        if (!config.recolher || config.recolher < 0) return;
        botaoAbrir.classList.remove('recolhido');
        timerRecolher = setTimeout(function() {
            botaoAbrir.classList.add('recolhido');
        }, config.recolher);
    }

    function alternarPainel() {
        if (painel.classList.contains('aberto')) fecharPainel();
        else abrirPainel();
    }

    function abrirPainel() {
        painel.classList.add('aberto');
        setTimeout(function() { painel.classList.add('visivel'); }, 10);
        botaoAbrir.setAttribute('aria-expanded', 'true');
        var primeiro = painel.querySelector('button');
        if (primeiro) primeiro.focus();
    }

    function fecharPainel() {
        fecharPainelSilencioso();
        botaoAbrir.focus();
    }

    function fecharPainelSilencioso() {
        painel.classList.remove('visivel');
        botaoAbrir.setAttribute('aria-expanded', 'false');
        setTimeout(function() {
            if (!painel.classList.contains('visivel')) painel.classList.remove('aberto');
        }, 200);
    }

    function aplicarPerfil(id) {
        var ligar = estado.perfil !== id;
        restaurarEstadoBase();
        if (ligar) {
            var preset = PERFIS[id];
            for (var k in preset) {
                if (preset.hasOwnProperty(k)) estado[k] = preset[k];
            }
            estado.perfil = id;
        }
        aplicarTudo();
        salvarEstado();
    }

    function restaurarEstadoBase() {
        for (var k in padroes) {
            if (padroes.hasOwnProperty(k) && k !== 'leitor') estado[k] = padroes[k];
        }
        estado.perfil = null;
    }

    function restaurar() {
        for (var k in padroes) {
            if (padroes.hasOwnProperty(k)) estado[k] = padroes[k];
        }
        try { localStorage.removeItem(chaveContraste()); } catch (e) {}
        aplicarTudo();
        salvarEstado();
    }

    function classe(nome, ligado) {
        var el = document.documentElement;
        if (ligado) el.classList.add(PREFIX + '-' + nome);
        else el.classList.remove(PREFIX + '-' + nome);
    }

    function classeNivel(nome, nivel, max) {
        for (var i = 1; i <= max; i++) classe(nome + '-' + i, false);
        if (nivel > 0) classe(nome + '-' + nivel, true);
    }

    function getSavedContrast() {
        return localStorage.getItem(chaveContraste());
    }

    function systemPrefersDarkMode() {
        return window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
    }

    function resolverAdaptadorContraste() {
        var A = window.AcessivelJS && window.AcessivelJS.contrasteAdapter;
        if (typeof A === 'function') return A;

        if (config.contrasteFn) {
            var partes = config.contrasteFn.split('.');
            var ctx = window, fn = window;
            for (var i = 0; i < partes.length; i++) {
                ctx = fn;
                fn = fn ? fn[partes[i]] : null;
            }
            if (typeof fn === 'function') {
                return function(ativo) { fn.call(ctx, ativo); };
            }
        }

        if (window.Accessibility &&
            typeof window.Accessibility.enableHighContrast === 'function') {
            return function(ativo) {
                if (ativo) window.Accessibility.enableHighContrast();
                else window.Accessibility.disableHighContrast();
            };
        }

        if (config.contrasteClasse) {
            return function(ativo) {
                var alvo = config.contrasteAlvo === 'body'
                    ? document.body
                    : document.documentElement;
                if (ativo) alvo.classList.add(config.contrasteClasse);
                else alvo.classList.remove(config.contrasteClasse);
            };
        }

        return null;
    }

    function setHighContrast(ativo, manual) {
        var adaptador = resolverAdaptadorContraste();

        if (adaptador) {
            adaptador(ativo);
            classe('contraste-nativo', false);
        } else {
            classe('contraste-nativo', ativo);
        }

        if (manual) {
            try { localStorage.setItem(chaveContraste(), ativo ? 'true' : 'false'); } catch (e) {}
        }

        document.dispatchEvent(new CustomEvent('contrastChanged', {
            detail: { highContrast: ativo, manual: !!manual }
        }));
    }

    function resetContrast() {
        try { localStorage.removeItem(chaveContraste()); } catch (e) {}
        aplicarPreferenciaSistema();
    }

    function aplicarPreferenciaSistema() {
        if (getSavedContrast() === null) {
            estado.contraste = systemPrefersDarkMode();
            setHighContrast(estado.contraste, false);
        }
    }

    function observarPreferenciaSistema() {
        if (!window.matchMedia) return;
        var query = window.matchMedia('(prefers-color-scheme: dark)');
        var listener = function(e) {
            if (getSavedContrast() !== null) return;
            estado.contraste = e.matches;
            setHighContrast(e.matches, false);
            atualizarPainel();
        };
        if (query.addEventListener) query.addEventListener('change', listener);
        else if (query.addListener) query.addListener(listener);
    }

    function aplicarTudo() {
        setHighContrast(estado.contraste, true);
        classe('inverter', estado.inverter);
        classe('cinza', estado.cinza);
        classe('saturacao', estado.saturacao);
        classe('cursor', estado.cursor);
        classe('links', estado.links);
        classe('titulos', estado.titulos);
        classe('animacoes', estado.animacoes);
        classe('imagens', estado.imagens);
        classe('fonte-legivel', estado.fonteLegivel);

        classeNivel('letras', estado.letras, 2);
        classeNivel('linha', estado.linha, 3);
        classeNivel('zoom', estado.zoom, 3);
        aplicarFonte(estado.fonte);

        aplicarGuia(estado.guia);
        aplicarMascara(estado.mascara);
        aplicarLeitor(estado.leitor);
        aplicarVLibras(estado.vlibras);
        if (estado.animacoes) pausarMidias();

        atualizarPainel();
    }

    var FATORES_FONTE = [1, 1.15, 1.3, 1.5];
    var SELETOR_TEXTO = 'p,li,a,span,label,button,input,select,textarea,td,th,h1,h2,h3,h4,h5,h6,dd,dt,blockquote,small,strong,em,b,i,figcaption,caption,legend';

    function aplicarFonte(nivel) {
        var fator = FATORES_FONTE[nivel] || 1;
        var els = document.body.querySelectorAll(SELETOR_TEXTO);
        for (var i = 0; i < els.length; i++) {
            var el = els[i];
            if (host && (el === host || host.contains(el))) continue;
            var original = el.getAttribute('data-ajs-fs');
            if (original === null) {
                original = parseFloat(window.getComputedStyle(el).fontSize);
                if (!original) continue;
                el.setAttribute('data-ajs-fs', original);
            } else {
                original = parseFloat(original);
            }
            if (fator === 1) el.style.fontSize = '';
            else el.style.fontSize = (original * fator) + 'px';
        }
    }

    function moverGuia(ev) {
        guiaEl.style.top = (ev.clientY - 3) + 'px';
    }

    function aplicarGuia(ligado) {
        guiaEl.style.display = ligado ? 'block' : 'none';
        document.removeEventListener('mousemove', moverGuia);
        if (ligado) document.addEventListener('mousemove', moverGuia);
    }

    var JANELA_MASCARA = 130;

    function moverMascara(ev) {
        var metade = JANELA_MASCARA / 2;
        mascaraTopo.style.top = '0';
        mascaraTopo.style.height = Math.max(0, ev.clientY - metade) + 'px';
        mascaraBaixo.style.top = (ev.clientY + metade) + 'px';
        mascaraBaixo.style.bottom = '0';
    }

    function aplicarMascara(ligado) {
        mascaraTopo.style.display = ligado ? 'block' : 'none';
        mascaraBaixo.style.display = ligado ? 'block' : 'none';
        document.removeEventListener('mousemove', moverMascara);
        if (ligado) document.addEventListener('mousemove', moverMascara);
    }

    function aoClicarLeitor(ev) {
        if (!estado.leitor) return;
        var el = ev.target;
        if (el === host || host.contains(el)) return;
        var texto = (el.innerText || el.textContent || '').replace(/\s+/g, ' ').trim();
        if (!texto) return;
        ev.preventDefault();
        ev.stopPropagation();
        if (texto.length > 600) texto = texto.slice(0, 600);
        try {
            window.speechSynthesis.cancel();
            var fala = new SpeechSynthesisUtterance(texto);
            fala.lang = 'pt-BR';
            window.speechSynthesis.speak(fala);
        } catch (e) {}
    }

    function aplicarLeitor(ligado) {
        document.removeEventListener('click', aoClicarLeitor, true);
        if (ligado && 'speechSynthesis' in window) {
            document.addEventListener('click', aoClicarLeitor, true);
        } else if (!ligado && 'speechSynthesis' in window) {
            window.speechSynthesis.cancel();
        }
    }

    var VLIBRAS_URL = 'https://vlibras.gov.br/app';
    var VLIBRAS_ROOT = config.vlibrasRoot ? config.vlibrasRoot.replace(/\/+$/, '') : null;
    var VLIBRAS_PLUGIN_SRC = VLIBRAS_ROOT
        ? VLIBRAS_ROOT + '/vlibras-plugin.js'
        : VLIBRAS_URL + '/vlibras-plugin.js';
    var vlibrasContainer = null;
    var vlibrasIniciado = false;
    var vlibrasLigadoAntes = false;

    function aplicarVLibras(ligado) {
        var acabouDeLigar = ligado && !vlibrasLigadoAntes;
        vlibrasLigadoAntes = ligado;

        if (!ligado) {
            if (vlibrasContainer) vlibrasContainer.style.display = 'none';
            return;
        }
        if (vlibrasIniciado) {
            vlibrasContainer.style.display = '';
            if (acabouDeLigar) abrirPlayerVLibras(0);
            return;
        }
        vlibrasIniciado = true;

        vlibrasContainer = document.querySelector('[vw]');
        if (!vlibrasContainer) {
            vlibrasContainer = document.createElement('div');
            vlibrasContainer.setAttribute('vw', '');
            vlibrasContainer.className = 'enabled';
            vlibrasContainer.innerHTML =
                '<div vw-access-button class="active"></div>' +
                '<div vw-plugin-wrapper><div class="vw-plugin-top-wrapper"></div></div>';
            document.body.appendChild(vlibrasContainer);
        } else {
            vlibrasContainer.style.display = '';
        }

        if (window.VLibras && window.VLibras.Widget) {
            iniciarWidgetVLibras(0);
            return;
        }
        var s = document.createElement('script');
        s.src = VLIBRAS_PLUGIN_SRC;
        s.onload = function() { iniciarWidgetVLibras(0); };
        s.onerror = function() {
            vlibrasIniciado = false;
            vlibrasLigadoAntes = false;
        };
        document.body.appendChild(s);
    }

    function iniciarWidgetVLibras(tentativa) {
        tentativa = tentativa || 0;
        if (!window.VLibras || !window.VLibras.Widget) {
            if (tentativa < 20) {
                setTimeout(function() { iniciarWidgetVLibras(tentativa + 1); }, 200);
            }
            return;
        }
        try {
            if (!window.__vlibrasWidgetCriado) {
                if (VLIBRAS_ROOT) {
                    new window.VLibras.Widget({
                        rootPath: VLIBRAS_ROOT + '/',
                        personalization: 'https://vlibras.gov.br/config/configs.json',
                        opacity: 1,
                        position: (window.screen.width >= 640) ? 'R' : 'BR',
                        avatar: 'random'
                    });
                } else {
                    new window.VLibras.Widget(VLIBRAS_URL);
                }
                window.__vlibrasWidgetCriado = true;
            }
            abrirPlayerVLibras(0);
        } catch (e) {}
    }

    function aplicarContrasteExterno(ligado) {
        var A = window.Accessibility;
        if (!A) return false;
        if (ligado) A.enableHighContrast();
        else A.disableHighContrast();
        return true;
    }

    function abrirPlayerVLibras(tentativa) {
        if (!vlibrasContainer) return;

        var wrapper = vlibrasContainer.querySelector('[vw-plugin-wrapper]');
        var jaAberto = wrapper &&
            wrapper.className.indexOf('active') !== -1 &&
            wrapper.getBoundingClientRect().width > 0;
        if (jaAberto) return;

        var btn = vlibrasContainer.querySelector('[vw-access-button]');
        var pronto = false;
        if (btn) {
            var r = btn.getBoundingClientRect();
            pronto = r.width > 0 && r.height > 0 &&
                window.getComputedStyle(btn).pointerEvents !== 'none';
        }

        if (pronto) {
            try { btn.click(); } catch (e) {}
        }

        if (tentativa < 40) {
            setTimeout(function() { abrirPlayerVLibras(tentativa + 1); }, 300);
        }
    }

    function pausarMidias() {
        var videos = document.getElementsByTagName('video');
        for (var i = 0; i < videos.length; i++) {
            try { videos[i].pause(); } catch (e) {}
        }
    }

    function contarAtivos() {
        var n = 0;
        for (var k in padroes) {
            if (!padroes.hasOwnProperty(k) || k === 'perfil') continue;
            if (typeof padroes[k] === 'boolean') { if (estado[k]) n++; } else if (estado[k] > 0) n++;
        }
        return n;
    }

    function atualizarPainel() {
        var i, el;
        var toggles = painel.querySelectorAll('[data-toggle]');
        for (i = 0; i < toggles.length; i++) {
            el = toggles[i];
            el.setAttribute('aria-pressed', estado[el.getAttribute('data-toggle')] ? 'true' : 'false');
        }
        var perfis = painel.querySelectorAll('[data-perfil]');
        for (i = 0; i < perfis.length; i++) {
            el = perfis[i];
            el.setAttribute('aria-pressed', estado.perfil === el.getAttribute('data-perfil') ? 'true' : 'false');
        }
        var linhas = painel.querySelectorAll('[data-nivel]');
        for (i = 0; i < linhas.length; i++) {
            el = linhas[i];
            var id = el.getAttribute('data-nivel');
            var barras = el.querySelectorAll('.barra');
            for (var j = 0; j < barras.length; j++) {
                barras[j].className = 'barra' + (j < estado[id] ? ' cheio' : '');
            }
        }

        var n = contarAtivos();
        if (seloEl) {
            seloEl.textContent = n;
            if (n > 0) seloEl.className = 'selo visivel';
            else seloEl.className = 'selo';
        }
        if (contadorEl) {
            var txt = contadorEl.querySelector('.contadorTexto');
            if (txt) txt.textContent = n > 0 ? (n + ' ' + T.ativos) : T.nenhumAtivo;
            contadorEl.className = 'contador' + (n > 0 ? ' ligado' : '');
        }
    }

    function iniciar() {
        var salvo = getSavedContrast();
        if (salvo === 'true' || salvo === 'dark') estado.contraste = true;
        else if (salvo === 'false' || salvo === 'light') estado.contraste = false;
        else estado.contraste = systemPrefersDarkMode();
        montar();
        observarPreferenciaSistema();
    }
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', iniciar);
    } else {
        iniciar();
    }

    window.AcessivelJS = window.AcessivelJS || {};
    window.AcessivelJS.abrir = function() { if (painel) abrirPainel(); };
    window.AcessivelJS.fechar = function() { if (painel) fecharPainel(); };
    window.AcessivelJS.restaurar = function() { if (painel) restaurar(); };
    window.AcessivelJS.toggleContraste = function() {
        estado.contraste = !estado.contraste;
        estado.perfil = null;
        aplicarTudo();
        salvarEstado();
    };
    window.AcessivelJS.isHighContrast = function() {
        return !!estado.contraste;
    };
    window.AcessivelJS.resetContraste = resetContrast;
    window.AcessivelJS.systemPrefersDarkMode = systemPrefersDarkMode;
    window.AcessivelJS.mostrarRotulo = function() { if (botaoAbrir) agendarRecolhimento(); };
    window.AcessivelJS.recolherRotulo = function() {
        if (!botaoAbrir) return;
        if (timerRecolher) clearTimeout(timerRecolher);
        botaoAbrir.classList.add('recolhido');
    };
})();