/* Widget Flotante de Accesibilidad */
#a11y-widget-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    font-family: system-ui, -apple-system, sans-serif;
}

#a11y-toggle-btn {
    background-color: #0ea5e9;
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background-color 0.2s;
}

#a11y-toggle-btn:hover {
    transform: scale(1.1);
    background-color: #0284c7;
}

#a11y-menu {
    position: absolute;
    bottom: 60px;
    right: 0;
    background-color: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 12px;
    padding: 15px;
    width: 250px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    display: none;
    flex-direction: column;
    gap: 15px;
}

#a11y-menu.show {
    display: flex;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.a11y-menu-header {
    font-weight: bold;
    font-size: 1rem;
    color: var(--text-main, #333);
    border-bottom: 1px solid var(--border-color, #e2e8f0);
    padding-bottom: 8px;
    margin: 0;
}

.a11y-control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.a11y-label {
    font-size: 0.85rem;
    color: var(--text-muted, #64748b);
    font-weight: 600;
}

.a11y-buttons {
    display: flex;
    gap: 10px;
}

.a11y-btn {
    flex: 1;
    background-color: transparent;
    color: var(--text-main, #333);
    border: 1px solid var(--border-color, #cbd5e1);
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    transition: all 0.2s;
}

.a11y-btn:hover {
    background-color: rgba(128, 128, 128, 0.2);
}

.a11y-btn.active {
    background-color: #0ea5e9;
    color: white;
    border-color: #0ea5e9;
}

/* Corrección de contraste para alertas en modo normal */
.login-page .alert {
    background-color: #fee2e2 !important; /* Rojo claro */
    color: #991b1b !important; /* Rojo oscuro accesible */
    border: 1px solid #fecaca !important;
}

/* -------------------------------------------
   Modo de Alto Contraste (High Contrast)
------------------------------------------- */
[data-theme="high-contrast"] {
    --bg-body: #000000 !important;
    --bg-main: #000000 !important;
    --bg-card: #000000 !important;
    --bg-sidebar: #000000 !important;
    --topbar-bg: #000000 !important;
    --glass-bg: #000000 !important;
    --text-main: #ffff00 !important;
    --text-muted: #ffff00 !important;
    --border-color: #ffff00 !important;
    --primary: #ffff00 !important;
    --primary-hover: #ffffff !important;
    --info: #00ffff !important;
    --success: #00ff00 !important;
    --warning: #ffaa00 !important;
    --danger: #ff0000 !important;
    
    background-color: #000000 !important;
    color: #ffff00 !important;
}

[data-theme="high-contrast"] * {
    border-color: #ffff00 !important;
    color: #ffff00 !important;
}

/* Forzar fondos negros en contenedores para evitar cajas blancas o grises */
[data-theme="high-contrast"] .card,
[data-theme="high-contrast"] .portal-card,
[data-theme="high-contrast"] .welcome-banner,
[data-theme="high-contrast"] .alert,
[data-theme="high-contrast"] .modal-content,
[data-theme="high-contrast"] .top-bar,
[data-theme="high-contrast"] .sidebar,
[data-theme="high-contrast"] div[style*="background"],
[data-theme="high-contrast"] span[style*="background"],
[data-theme="high-contrast"] .bg-white,
[data-theme="high-contrast"] .bg-light {
    background-color: #000000 !important;
    background-image: none !important;
}

/* Estilos para Botones en Alto Contraste */
[data-theme="high-contrast"] .btn,
[data-theme="high-contrast"] button {
    background-color: #000000 !important;
    color: #ffff00 !important;
    border: 2px solid #ffff00 !important;
}

[data-theme="high-contrast"] .btn-primary,
[data-theme="high-contrast"] a.btn-primary,
[data-theme="high-contrast"] .btn-primary * {
    background-color: #ffff00 !important;
    color: #000000 !important;
    font-weight: bold !important;
}

[data-theme="high-contrast"] .btn-link {
    background-color: transparent !important;
    text-decoration: underline !important;
    border: none !important;
}

[data-theme="high-contrast"] a {
    color: #00ffff !important;
    text-decoration: underline !important;
}

[data-theme="high-contrast"] input, 
[data-theme="high-contrast"] select, 
[data-theme="high-contrast"] textarea {
    background-color: #000000 !important;
    color: #ffff00 !important;
    border: 2px solid #ffff00 !important;
}

/* Estilos para la Página de Login en Alto Contraste */
[data-theme="high-contrast"] .login-page,
[data-theme="high-contrast"] .login-container {
    background-color: #000000 !important;
    background-image: none !important;
}

[data-theme="high-contrast"] .login-card {
    background-color: #000000 !important;
    border: 2px solid #ffff00 !important;
}

[data-theme="high-contrast"] .google-btn {
    background-color: #000000 !important;
    color: #ffff00 !important;
    border: 2px solid #ffff00 !important;
}

[data-theme="high-contrast"] .login-header p {
    color: #ffff00 !important;
}

[data-theme="high-contrast"] .login-page .alert {
    background-color: #000000 !important;
    color: #ffff00 !important;
    border: 2px solid #ffff00 !important;
}

/* Estilos para el Skip Link (Fase 2) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #0ea5e9;
    color: white;
    padding: 8px 16px;
    z-index: 10000;
    transition: top 0.2s;
    border-radius: 0 0 4px 4px;
    text-decoration: none;
    font-weight: bold;
}

.skip-link:focus {
    top: 0;
}

[data-theme="high-contrast"] .skip-link {
    background: #ffff00 !important;
    color: #000000 !important;
    border: 2px solid #000000 !important;
}

/* Corrección de Badges en Alto Contraste */
[data-theme="high-contrast"] .badge,
[data-theme="high-contrast"] [class*="badge-"],
[data-theme="high-contrast"] .pill {
    background-color: #000000 !important;
    color: #ffff00 !important;
    border: 2px solid #ffff00 !important;
}


/* Focus Rings Claros (Fase 2 - adelantado para el widget) */
:focus-visible {
    outline: 3px solid #ff00ff !important;
    outline-offset: 2px !important;
}