/**
 * Estilos de Acessibilidade (WCAG 2.1)
 * Melhora a experiência para usuários com deficiências
 */

/* Botão de Toggle de Acessibilidade (Discreto) */
.accessibility-toggle {
    position: fixed !important;
    bottom: 20px !important;
    left: 20px !important;
    z-index: 999999 !important;
    width: 50px !important;
    height: 50px !important;
    border-radius: 50% !important;
    background: #007cba !important;
    color: #fff !important;
    border: none !important;
    cursor: pointer !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3) !important;
    transition: all 0.3s ease !important;
    opacity: 0.7 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 24px !important;
}

.accessibility-toggle:hover {
    opacity: 1 !important;
    transform: scale(1.1) !important;
}

.accessibility-toggle i.fa{
    color: #fff !important;
    font-size: 24px !important;
}

/* Toolbar de Acessibilidade (Oculto por padrão) */
.accessibility-toolbar {
    position: fixed !important;
    bottom: 80px !important;
    right: 20px !important;
    z-index: 999999 !important;
    background: rgba(0, 0, 0, 0.9) !important;
    border-radius: 8px !important;
    padding: 12px !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
    display: none !important;
}

.accessibility-btn {
    width: 44px !important;
    height: 44px !important;
    border: 2px solid #fff !important;
    background: transparent !important;
    color: #fff !important;
    border-radius: 6px !important;
    cursor: pointer !important;
    margin-bottom: 8px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 16px !important;
    transition: all 0.3s ease !important;
}

.accessibility-btn:last-child {
    margin-bottom: 0 !important;
}

.accessibility-btn:hover,
.accessibility-btn:focus {
    background: #fff !important;
    color: #000 !important;
    transform: scale(1.1) !important;
}

.accessibility-btn[aria-pressed="true"] {
    background: #007cba !important;
    border-color: #007cba !important;
}

/* Skip Links Melhorados */
.skip-link {
    position: absolute !important;
    left: -9999px !important;
    top: 0 !important;
    z-index: 999999 !important;
    padding: 12px 16px !important;
    background: #000 !important;
    color: #fff !important;
    text-decoration: none !important;
    font-weight: bold !important;
    font-size: 16px !important;
    border-radius: 0 0 6px 0 !important;
    border: 3px solid #fff !important;
    border-top: none !important;
    border-left: none !important;
}

.skip-link:focus {
    left: 0 !important;
    top: 0 !important;
    outline: none !important;
}

/* Focus Indicators (Apenas quando necessário) */
.keyboard-navigation-active *:focus {
    outline: 3px solid #005fcc !important;
    outline-offset: 2px !important;
}

.accessibility-btn:focus,
.accessibility-toggle:focus {
    outline: 3px solid #ffff00 !important;
    outline-offset: 2px !important;
}

/* Contraste Alto */
.accessibility-high-contrast {
    filter: contrast(150%) brightness(1.2) !important;
}

.accessibility-high-contrast img,
.accessibility-high-contrast video {
    filter: contrast(120%) brightness(1.1) !important;
}

/* Modo de Alto Contraste Manual */
body.high-contrast-mode {
    background: #000 !important;
    color: #fff !important;
}

body.high-contrast-mode * {
    background: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}

body.high-contrast-mode a {
    color: #ffff00 !important;
    text-decoration: underline !important;
}

body.high-contrast-mode button,
body.high-contrast-mode .btn {
    background: #333 !important;
    color: #fff !important;
    border: 2px solid #fff !important;
}

/* Fonte Aumentada */
.accessibility-large-font {
    font-size: 120% !important;
    line-height: 1.6 !important;
}

.accessibility-large-font h1 { font-size: 150% !important; }
.accessibility-large-font h2 { font-size: 140% !important; }
.accessibility-large-font h3 { font-size: 130% !important; }
.accessibility-large-font h4 { font-size: 125% !important; }
.accessibility-large-font h5 { font-size: 120% !important; }
.accessibility-large-font h6 { font-size: 115% !important; }

.accessibility-large-font .btn,
.accessibility-large-font button {
    font-size: 110% !important;
    padding: 12px 20px !important;
}

/* Screen Reader Only */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.sr-only:focus {
    position: static !important;
    width: auto !important;
    height: auto !important;
    padding: 8px !important;
    margin: 0 !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
    background: #000 !important;
    color: #fff !important;
    border: 2px solid #fff !important;
    border-radius: 4px !important;
    font-weight: bold !important;
}

/* Indicadores Visuais para Estados */
.required {
    color: #d63384 !important;
    font-weight: bold !important;
}

/* Melhorias para Formulários (Apenas quando acessibilidade ativa) */
.accessibility-active label {
    font-weight: 600 !important;
    margin-bottom: 4px !important;
    display: block !important;
}

.accessibility-active input,
.accessibility-active textarea,
.accessibility-active select {
    border: 2px solid #ccc !important;
    padding: 8px 12px !important;
    border-radius: 4px !important;
    font-size: 16px !important;
}

/* Estados de erro e sucesso */
.form-field-error {
    border-color: #dc3545 !important;
    background-color: rgba(220, 53, 69, 0.1) !important;
}

.form-field-success {
    border-color: #28a745 !important;
    background-color: rgba(40, 167, 69, 0.1) !important;
}

/* Mensagens de erro acessíveis */
.error-message {
    color: #dc3545 !important;
    font-weight: 600 !important;
    font-size: 14px !important;
    margin-top: 4px !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
}

.error-message::before {
    content: "⚠" !important;
    font-size: 16px !important;
}

/* Botões Acessíveis (Apenas quando ativado) */
.accessibility-active button,
.accessibility-active .btn {
    min-height: 44px !important;
    min-width: 44px !important;
}

.accessibility-active button:hover,
.accessibility-active .btn:hover {
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2) !important;
}

/* Links Acessíveis (Apenas quando ativado) */
.accessibility-active a {
    text-decoration: underline !important;
    text-underline-offset: 3px !important;
}

.accessibility-active a:hover {
    background-color: rgba(0, 124, 186, 0.1) !important;
    padding: 2px 4px !important;
    border-radius: 3px !important;
}

/* Navegação por Teclado */
.keyboard-navigation-active *:focus {
    outline: 3px solid #ffff00 !important;
    outline-offset: 2px !important;
    box-shadow: 0 0 0 1px #000 !important;
}

/* Tabelas Acessíveis */
table {
    border-collapse: collapse !important;
    width: 100% !important;
}

th, td {
    border: 1px solid #ccc !important;
    padding: 12px !important;
    text-align: left !important;
}

th {
    background-color: #f8f9fa !important;
    font-weight: 700 !important;
}

tr:nth-child(even) {
    background-color: rgba(0, 0, 0, 0.05) !important;
}

/* Redução de Movimento */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .accessibility-toolbar {
        transition: none !important;
    }

    .accessibility-btn {
        transition: none !important;
    }
}

/* Preferência de Alto Contraste do Sistema */
@media (prefers-contrast: high) {
    * {
        border-color: #000 !important;
    }

    a {
        color: #0000ff !important;
        text-decoration: underline !important;
    }

    button, .btn {
        border: 2px solid #000 !important;
    }
}

/* Tema Escuro */
@media (prefers-color-scheme: dark) {
    .accessibility-toolbar {
        background: rgba(255, 255, 255, 0.9) !important;
    }

    .accessibility-btn {
        color: #000 !important;
        border-color: #000 !important;
    }

    .accessibility-btn:hover,
    .accessibility-btn:focus {
        background: #000 !important;
        color: #fff !important;
    }
}

/* Responsividade */
@media (max-width: 768px) {
    .accessibility-toolbar {
        top: 10px;
        right: 10px;
        padding: 8px;
        gap: 6px;
    }

    .accessibility-btn {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }

    .accessibility-btn::after {
        font-size: 11px;
        padding: 3px 6px;
    }
}

/* Estados de Loading Acessíveis */
.loading {
    position: relative !important;
}

.loading::after {
    position: absolute !important;
    top: 50% !important;
    left: 0 !important;
    width: 100% !important;
    text-align: center !important;
    color: #000 !important;
    padding: 8px 12px !important;
    border-radius: 4px !important;
    font-weight: 600 !important;
    margin: auto !important;
}

/* Melhorias para Modals/Popups */
.modal, .popup {
    position: fixed !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    background: #fff !important;
    border: 2px solid #000 !important;
    border-radius: 8px !important;
    padding: 20px !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3) !important;
    z-index: 999999 !important;
}

.modal-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0, 0, 0, 0.5) !important;
    z-index: 999998 !important;
}

/* Breadcrumbs Acessíveis */
.breadcrumbs {
    padding: 12px 0 !important;
    font-size: 14px !important;
}

.breadcrumbs ol {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 8px !important;
}

.breadcrumbs li::after {
    content: ">" !important;
    margin-left: 8px !important;
    color: #666 !important;
}

.breadcrumbs li:last-child::after {
    display: none !important;
}

/* Indicadores de Estado (Apenas quando acessibilidade ativa) */
.accessibility-active [aria-expanded="true"]::after {
    content: " (expandido)" !important;
}

.accessibility-active [aria-expanded="false"]::after {
    content: " (contraído)" !important;
}