/***********************************************************/
/*                                                         */
/* Plataforma e-ducativa - Argentina                       */
/*                                                         */
/* Copyright (c) 2026 de e-ducativa Educación Virtual S.A. */
/*                                                         */
/***********************************************************/
/* NAVIGATION
   -------------------------------------------
   Estilos visuales para icon_sidebar y topbar
   ------------------------------------------- */
:root {
    /* Variables para navegacion - Dimensiones */
    --icon-sidebar-width: 56px;
    --icon-sidebar-expanded: 210px;
    --topbar-height: 64px;
    --footer-height: 50px;
    --navigation-transition: .3s ease-in-out;
    --icon-sidebar-z-index: 110;
    --footer-z-index: 120;

    /* Variables para navegacion - Sidebar Principal (basado en color plataforma) */
    --icon-sidebar-bg: var(--variable-color-plataforma);
    --icon-sidebar-text: var(--variable-color-plataforma-contraste);
    --icon-sidebar-hover-bg: var(--variable-color-plataforma-gamma2);
    --icon-sidebar-selected-bg: var(--variable-color-plataforma-gamma3);

    /* Variables para navegacion - Sidebar Secundaria Front (basado en color curso/aula) */
    --content-sidebar-bg: color-mix(in srgb, var(--variable-color-curso) 3%, #ffffff);
    --content-sidebar-text: #333333;
    --content-sidebar-hover-bg: color-mix(in srgb, var(--variable-color-curso) 12%, #ffffff);
    --content-sidebar-active-bg: color-mix(in srgb, var(--variable-color-curso) 18%, #ffffff);
    --content-sidebar-border: color-mix(in srgb, var(--variable-color-curso) 10%, #ffffff);

    /* Variables para navegacion - Topbar */
    --topbar-bg: var(--variable-color-plataforma);
    --topbar-text: var(--variable-color-plataforma-contraste);
    --topbar-border: var(--variable-color-plataforma-gamma2);
}

/* ---------------------------------
   #Icon SIDEBAR (Navegacion Global)
   --------------------------------- */
.icon-sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    width: var(--icon-sidebar-width);
    height: calc(100% - var(--topbar-height));
    background-color: var(--icon-sidebar-bg);
    transition: width var(--navigation-transition);
    overflow: hidden;
    z-index: var(--icon-sidebar-z-index);
}
/* Expansion on hover */
.icon-sidebar:hover { width: var(--icon-sidebar-expanded); }

/* Header con boton cerrar (solo visible en movil) */
.icon-sidebar-header { display: none; }

/* Sidebar fijada: mantiene ancho expandido */
.icon-sidebar.pinned { width: var(--icon-sidebar-expanded); }

.icon-sidebar.pinned .icon-nav-item .icon-label { opacity: 1; }

.icon-sidebar.pinned .icon-nav-item .icon-external-link {
    display: inline;
    opacity: .6;
}
/* Pin button (oculto por defecto, visible solo en desktop via media query) */
.icon-sidebar-pin { display: none; }

/* Ocultar pin button en backend */
body.backend .icon-sidebar-pin { display: none; }

/* Ocultar boton toggle y overlay cuando no hay sidebar (usuario no logueado) */
body:not(:has(.icon-sidebar)) .sidebar-toggle-float,
body:not(:has(.icon-sidebar)) .sidebar-overlay { display: none; }

/* --- Navigation container (con iconos) --- */
.icon-nav {
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    height: 100%;
    user-select: none;
}
/* Separar el item de administracion al final */
.icon-nav-item[data-section="admin"] { margin-top: auto; }

/* Solo aplicar margen cuando footer es visible */
.icon-sidebar.footer-visible .icon-nav-item[data-section="admin"] { margin-bottom: var(--footer-height); }

/* --- Navigation items --- */
.icon-nav-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px 12px 12px;
    text-decoration: none;
    white-space: nowrap;
    border-left: 3px solid transparent;
    color: var(--icon-sidebar-text);
}
.icon-nav-item:hover { background-color: var(--icon-sidebar-hover-bg); }

.icon-nav-item:active {
    border-left-color: transparent;
    background-color: transparent;
}
/* Estado selected - Cuando estamos en esa seccion */
.icon-nav-item.selected {
    font-weight: 700;
    border-left-color: var(--variable-color-plataforma-contraste);
    background-color: var(--icon-sidebar-selected-bg);
}
.icon-nav-item.selected:hover { background-color: var(--icon-sidebar-hover-bg); }

.icon-nav-item .icon {
    flex-shrink: 0;
    min-width: 20px;
    font-size: 1.25rem;
    text-align: center;
}
/* Label - oculto por defecto, visible en hover del sidebar */
.icon-nav-item .icon-label {
    font-size: .875rem;
    font-weight: 400;
    opacity: 0;
    transition: opacity var(--navigation-transition);
}
.icon-sidebar:hover .icon-nav-item .icon-label { opacity: 1; }

/* Badge (indicador visual - punto rojo) */
.icon-nav-item .badge {
    position: absolute;
    top: 8px;
    left: 28px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    font-size: 0;
    background-color: #e74c3c;
}
/* External link icon (para links que abren en nueva ventana) */
.icon-nav-item .icon-external-link {
    display: none;
    margin-left: auto;
    font-size: .75rem;
    color: var(--icon-sidebar-text);
    opacity: 0;
    transition: opacity var(--navigation-transition);
}
/* Mostrar icono cuando el sidebar esta expandido */
.icon-sidebar:hover .icon-nav-item .icon-external-link {
    display: inline;
    opacity: .6;
}
/* Aumentar opacidad en hover del item */
.icon-sidebar:hover .icon-nav-item:hover .icon-external-link { opacity: 1; }

/* --- Badge "NOVEDAD" para nuevas caracteristicas --- */
.new-feature-container { position: relative; }

.new-feature-badge {
    position: absolute;
    left: 10px;
    bottom: 8px;
    width: 8px;
    height: 8px;
    color: #1bec29;
    border: 2px solid var(--icon-sidebar-bg);
    border-radius: 50%;
    transition: opacity .4s ease;
    animation-name: badge-alert;
    animation-duration: 1.5s;
    animation-iteration-count: 2;
    animation-timing-function: ease-in-out;
    animation-delay: 1.3s;
}
/* Animacion de badge (mensajes no leidos y nueva caracteristica) */
/* Se repite solo 2 veces y luego para */
@keyframes badge-alert {
    0%,
    25%,
    50%,
    75%,
    100% { transform: scale(1); }

    12.5%,
    37.5%,
    62.5%,
    87.5% { transform: scale(1.2); }
}

/* -----------------------
   TOPBAR (Barra Superior)
   ----------------------- */
.topbar {
    box-sizing: border-box;
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    height: calc(var(--topbar-height) + 1px);
    padding: 0 8px 0 14px;
    border-bottom: 1px solid var(--topbar-border);
    background-color: var(--topbar-bg);
    overflow-x: clip;
    overflow-y: visible;
    z-index: 100;
}
.topbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    color: var(--topbar-text);
}

/* --- Left section --- */
.topbar-left {
    display: flex;
    flex-shrink: 1;
    align-items: center;
    gap: 6px;
    min-width: 0;
    overflow: hidden;
}
/* Logo */
.topbar-logo {
    display: block;
    height: calc(var(--topbar-height) - 14px);
    width: auto;
    border-radius: 4px;
}
.topbar-logo-link,
.topbar-logo-wrapper {
    display: flex;
    align-items: center;
}
.topbar-logo-link:hover { opacity: .8; }

/* Nombre instalacion */
.topbar-nombre-instalacion {
    display: block;
    height: 40px;
    line-height: 40px;
    padding: 0 8px;
    max-width: 276px;
    font-size: .938rem;
    font-weight: 700;
    white-space: nowrap;
    text-overflow: ellipsis;
    text-decoration: none;
    user-select: none;
    border-radius: 4px;
    color: var(--topbar-text);
    transition: background-color .2s ease;
    overflow: hidden;
}
.topbar-nombre-instalacion:hover { background-color: rgba(255, 255, 255, .1); }

/* --- Center section (contiene al Breadcrumb) --- */
.topbar-center {
    flex: 1;
    display: flex;
    justify-content: center;
    min-width: 0;
    padding: 0 16px;
    overflow: visible;
}
/* --- Breadcrumb --- */
/* Contenedor */
.topbar-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 100%;
    min-width: 0;
    font-size: .875rem;
    color: var(--topbar-text);
    overflow: visible;
    user-select: none;
}
.topbar-breadcrumb .breadcrumb-item {
    white-space: nowrap;
    text-decoration: none;
    color: var(--topbar-text);
}
.topbar-breadcrumb .breadcrumb-item:hover {
    cursor: pointer;
    text-decoration: underline;
}
.topbar-breadcrumb .breadcrumb-separator {
    flex-shrink: 0;
    font-size: .625rem;
    opacity: .6;
}
.topbar-breadcrumb .breadcrumb-current,
.topbar-breadcrumb span.breadcrumb-item:last-child {
    min-width: 50px;
    font-weight: 700;
    text-overflow: ellipsis;
    opacity: 1;
    cursor: default;
    overflow: hidden;
}
.topbar-breadcrumb .breadcrumb-current:hover,
.topbar-breadcrumb span.breadcrumb-item:last-child:hover {
    text-decoration: none;
    cursor: default;
}

/* Breadcrumb colapsable: ellipsis + dropdown overrides */
.topbar-breadcrumb .edu-breadcrumb-ellipsis-btn { padding: 2px 6px; }

.topbar-breadcrumb .edu-breadcrumb-ellipsis-btn:hover { background: rgba(255, 255, 255, .1); }

.topbar-breadcrumb .edu-breadcrumb-dot { background: var(--topbar-text); }

.topbar-breadcrumb .edu-dropdown-wrapper { min-width: 0; }

.topbar-breadcrumb .edu-dropdown-wrapper::after { display: none; }

.topbar-breadcrumb .edu-dropdown-toggle { width: auto; }

.topbar-breadcrumb .edu-dropdown-menu {
    min-width: 180px;
    max-width: min(400px, 100vw - 20px);
    padding: 6px 0;
    margin-top: 10px;
}
.topbar-breadcrumb .edu-dropdown-item { margin: 2px 6px; }
.topbar-breadcrumb .edu-dropdown-link {
    height: auto;
    padding: 8px 10px;
    overflow: visible;
    font-size: .938rem;
    white-space: normal;
    border: 1px solid transparent;
    border-radius: 4px;
}
.topbar-breadcrumb .edu-dropdown-link:hover {
    border-color: #dadada;
    background-color: #fdfdfd;
}
.topbar-breadcrumb .edu-dropdown-current {
    font-weight: 600;
    color: #333333;
    cursor: default;
}

/* Selector nativo del aula (oculto, reemplazado por Choices.js) */
.topbar-breadcrumb .breadcrumb-selector-aula { display: none; }

/* Oculta el nav del breadcrumb mientras Choices.js inicializa (removida por callbackOnInit) */
.breadcrumb-loading { opacity: 0; }

/* Oculta el topbar-right mientras cargan las fuentes (removida por document.fonts.ready) */
.topbar-right-loading { opacity: 0; }

/* Selector de administracion (campus/sitio web) en breadcrumb */
.topbar-breadcrumb-selector-wrapper {
    position: relative;
    display: inline-block;
}
.breadcrumb-selector-admin {
    padding: 4px 24px 4px 8px;
    font-size: .875rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: var(--topbar-text);
    background-color: rgba(255, 255, 255, 0.1);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}
.breadcrumb-selector-icon {
    position: absolute;
    top: 50%;
    right: 8px;
    font-size: .625rem;
    color: var(--topbar-text);
    transform: translateY(-50%);
    pointer-events: none;
}
.breadcrumb-selector-admin:hover {
    border-color: rgba(255, 255, 255, .3);
    background-color: rgba(255, 255, 255, .15);
}
.breadcrumb-selector-admin:focus {
    outline: none;
    border-color: rgba(255, 255, 255, .4);
    background-color: rgba(255, 255, 255, .15);
}
.breadcrumb-selector-admin option {
    color: #333333;
    background-color: #ffffff;
}

/* --- Select CHOICES --- */
/* Estilos del selector de aulas en el breadcrumb (clases propias con aula_sel_*) */

/* Contenedor externo del widget Choices (wrapper general) */
.topbar-breadcrumb .aula_sel_container {
    position: relative;
    display: inline-block;
    flex-shrink: 1;
    min-width: 80px;
    margin: 0;
}
/* Caja visible clickeable que muestra el aula seleccionada */
.topbar-breadcrumb .aula_sel_inner {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 0;
    max-width: 100%;
    height: 40px;
    padding: 0 22px 0 8px;
    overflow: hidden;
    box-sizing: border-box;
    font-size: .875rem;
    color: var(--topbar-text);
    border: none;
    border-radius: 4px;
    background-color: transparent;
}
/* Hover sobre la caja visible */
.topbar-breadcrumb .aula_sel_inner:hover { background-color: rgba(255, 255, 255, .1); }

/* Icono mobile: oculto en desktop, visible en pantallas reducidas */
.topbar-breadcrumb .aula_sel_icon_mobile { display: none; }

/* Texto del item seleccionado dentro de la caja visible (modo single) */
.topbar-breadcrumb .aula_sel_list_single {
    min-width: 0;
    padding: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/* Oculta el triangulo nativo de Choices.js (choices.css) reemplazado por .aula_sel_arrow (FA icon) */
.topbar-breadcrumb .aula_sel_container::after { display: none; }

/* Icono FontAwesome fa-chevron-down inyectado via callbackOnCreateTemplates */
.topbar-breadcrumb .aula_sel_arrow {
    position: absolute;
    top: 50%;
    right: 6px;
    transform: translateY(-50%);
    font-size: .625rem;
    color: var(--topbar-text);
    pointer-events: none;
    transition: transform .02s ease;
}
/* Rotacion del icono flecha cuando el dropdown esta abierto (aula_sel_open via evento showDropdown) */
.topbar-breadcrumb .aula_sel_container.aula_sel_open .aula_sel_arrow { transform: translateY(-50%) rotate(180deg); }

/* Color del texto del item seleccionado en la caja visible (aula_sel_item via callbackOnCreateTemplates) */
.topbar-breadcrumb .aula_sel_inner .aula_sel_item { color: var(--topbar-text); }

/* Panel desplegable con la lista de aulas */
.topbar-breadcrumb .aula_sel_dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    width: auto;
    min-width: min(488px, 100vw - 20px);
    margin-top: 8px;
    border: 1px solid #dddddd;
    border-radius: 4px;
    background-color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
    z-index: 200;
}
/* Contenedor scrollable de la lista de opciones dentro del dropdown */
.topbar-breadcrumb .aula_sel_dropdown .aula_sel_list {
    max-height: 300px;
    padding: 6px 0;
    overflow-y: auto;
}
/* Cada opcion de aula dentro del dropdown (aula_sel_item via callbackOnCreateTemplates) */
.topbar-breadcrumb .aula_sel_dropdown .aula_sel_item {
    margin: 2px 6px;
    padding: 8px 10px;
    white-space: normal;
    color: #333333;
    border-radius: 4px;
}
/* Opcion resaltada al hacer hover dentro del dropdown (is-highlighted: clase nativa de estado) */
.topbar-breadcrumb .aula_sel_dropdown .aula_sel_item.is-highlighted {
    border: 1px solid #dadada;
    background-color: #fdfdfd;
}
/* Opcion seleccionada/activa */
.topbar-breadcrumb .aula_sel_dropdown .aula_sel_item.is-selected {
    border: 1px solid var(--variable-color-plataforma);
    background-color: var(--variable-color-plataforma);
    color: var(--variable-color-plataforma-contraste);
}

/* Input de busqueda y lupa dentro del dropdown */
.topbar-breadcrumb .aula_sel_dropdown .aula_sel_search_icon {
    position: absolute;
    left: 10px;
    top: 16px;
    color: #626262;
    font-size: .938rem;
    pointer-events: none;
}
.topbar-breadcrumb .aula_sel_container .aula_sel_dropdown .aula_sel_input {
    width: 100%;
    padding: 12px 12px 12px 34px;
    border: none;
    border-bottom: 1px solid #c4c4c4;
    background: #ffffff none !important;
    box-sizing: border-box;
}


/* --- Right section - User --- */
.topbar-right {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 4px;
}
/* User info */
.topbar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color .2s ease;
}
.topbar-user:hover { background-color: rgba(255, 255, 255, .1); }

.topbar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}
.topbar-user-icon { font-size: 2rem; }

.topbar-user-name {
    font-size: .875rem;
    font-weight: 400;
    color: var(--topbar-text);
    user-select: none;
}
.topbar-user-arrow {
    font-size: .625rem;
    opacity: .7;
    transition: transform .02s ease;
}
/* Login button (usuario no logueado) */
.topbar-btn-catalogo,
.topbar-btn-login {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: .875rem;
    font-weight: 400;
    text-decoration: none;
    color: var(--topbar-text);
    border-radius: 4px;
    background-color: rgba(255, 255, 255, .1);
    transition: background-color .2s ease;
}
.topbar-btn-catalogo:hover,
.topbar-btn-login:hover { background-color: rgba(255, 255, 255, .2); }

.topbar-btn-catalogo { margin-right: 8px; }

/* User dropdown menu */
.topbar-user-dropdown {
    position: absolute;
    top: calc(var(--topbar-height) - 5px);
    right: 16px;
    min-width: 220px;
    border: 1px solid #dddddd;
    border-radius: 4px;
    background-color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
    user-select: none;
    z-index: 1000;
}
.topbar-user-menu-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.topbar-user-menu-item {
    margin: 0;
    padding: 0;
}
.topbar-user-menu-link {
    display: block;
    padding: 10px 16px;
    font-size: .875rem;
    text-decoration: none;
    color: #333;
    transition: background-color .2s ease;
}
.topbar-user-menu-link:hover {
    color: #333333;
    background-color: #f5f5f5;
}
.topbar-user-menu-item-logout {
    border-top: 1px solid #e4e4e4;
    background-color: #f6fafd;
}

/* Estado activo del trigger */
.topbar-user.active .topbar-user-arrow { transform: rotate(180deg); }

/* ---------------------------
   MENSAJES NO LEIDOS (Topbar)
   --------------------------- */

/* Estilos del paginador SOLO para mensajes no leidos (evitar conflictos con webmail) */
.mensajes_function .paginador {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 12px 0 4px;
    padding: 0 6px;
    text-align: center;
}
.mensajes_function .paginador .flecha {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 23px;
    padding: 0px 8px;
    border-radius: 3px;
    color: #949494;
    cursor: pointer;
}
.mensajes_function .paginador .flecha:hover {
    color: #dbdbdb;
    background-color: #878787;
}
.mensajes_function .paginador .flecha.disable { display: none; }

.mensajes_function .paginador .total_registros {
    padding-right: 24px;
    font-family: "Roboto", sans-serif;
    font-size: .813rem;
    color: #6c6c6c;
}
.mensajes_function .paginador .selector {
    position: relative;
    width: auto;
    margin: 2px 13px;
    font-size: .813rem;
    font-family: "Roboto", sans-serif;
}
.mensajes_function .paginador .ubicacion {
    display: block;
    border-radius: 3px;
    padding: 4px 8px;
    font-family: inherit;
    font-size: inherit;
    text-transform: lowercase;
    color: #ffffff;
    background-color: #2766be;
}
.mensajes_function .paginador .ubicacion:hover {
    background-color: #2a6ece;
    cursor: pointer;
}
.mensajes_function .paginador .control {
    position: absolute;
    top: 22px;
    left: 0;
    list-style: none;
    width: fit-content;
    min-width: 100%;
    max-height: 80px;
    margin: 0;
    padding: 0;
    border: 1px solid #dddddd;
    border-radius: 3px;
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .1);
    overflow: auto;
    z-index: 1000;
}
.mensajes_function .paginador .control li {
    padding: 6px 12px;
    font-size: .813rem;
    color: #333333;
    cursor: pointer;
}
.mensajes_function .paginador .control li:hover { background-color: #f5f5f5; }

.mensajes_function .paginador .control li.active {
    background-color: #2766be;
    color: #ffffff;
}
.mensajes_link { position: relative; }

.topbar-mensajes-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
    text-decoration: none;
    color: var(--topbar-text);
    border-radius: 4px;
    transition: background-color .2s ease;
}
.topbar-mensajes-btn:hover { background-color: rgba(255, 255, 255, .1); }

.topbar-mensajes-btn i { font-size: 1.125rem; }

/* Badge - indicador de mensajes no leidos */
.topbar-mensajes-btn .badge {
    box-sizing: initial;
    position: absolute;
    left: 2px;
    bottom: 8px;
    width: 8px;
    height: 8px;
    border: 2px solid var(--topbar-bg);
    border-radius: 50%;
    background-color: #e74c3c;
    animation-name: badge-alert;
    animation-duration: 1.5s;
    animation-iteration-count: 2;
    animation-timing-function: ease-in-out;
    animation-delay: 1.3s;
}
/* Popup de mensajes no leidos - Container para MensajesNoLeidos */
.mensajes_popup {
    display: none;
    position: absolute;
    top: calc(var(--topbar-height) - 16px);
    right: 0;
    width: 500px;
    min-height: 0;
    /* header(~35px) + 5 mensajes(~86px c/u) + paginador(~40px) = ~505px; 560 da margen */
    max-height: 560px;
    border: 1px solid #dddddd;
    border-radius: 4px;
    background-color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
    user-select: none;
    overflow: hidden;
    transition: min-height .15s ease;
    z-index: 1000;
}
.mensajes_popup.mensajes_popup_visible { display: block; }

/* Estado de carga: flex para centrar el spinner FA; declarado despues para ganar a display:block */
.mensajes_popup:has(.mensajes_spinner) {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}
.mensajes_spinner {
    font-size: 2rem;
    color: #999;
}
/* Estilos para el contenido interno .mensajes_function */
.mensajes_function { position: relative; }

.mensajes_function > .mensajes_header {
    display: flex;
    align-items: center;
    padding: 6px 6px 6px 10px;
    border-bottom: 1px solid #c3c3c3;
}
.mensajes_function .mensajes_titulo {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    font-size: .938rem;
    font-weight: 400;
    color: #484848;
}
.mensajes_function .cerrar_bt {
    margin-left: auto;
    border: none;
    background-color: transparent;
    transition-duration: .3s;
}
.mensajes_function .cerrar_bt:hover {
    border: none;
    background: none;
    cursor: pointer;
}
.mensajes_function .cerrar {
    width: 12px;
    height: 12px;
    padding: 4px;
    color: var(--topbar-text);
    border-radius: 50%;
    background-color: var(--topbar-bg);
    opacity: .7;
    transition-duration: .4s;
}
.mensajes_function .cerrar:hover {
    color: #ffffff;
    background-color: #666666;
    opacity: 1;
}
.mensajes_function .seccion_vacia {
    margin: 10px 10px;
    padding: 20px;
    text-align: center;
    color: #666;
    background-color: #f5f5f5;
}
.mensajes_function .lista_mensajes {
    list-style: none;
    margin: 0;
    padding: 0;
}
.mensajes_function .lista_mensajes li {
    margin-bottom: 1px;
    border-bottom: 1px dotted #a0a0a0;
}
.mensajes_function .lista_mensajes li > a {
    display: block;
    padding: 12px 10px;
    text-decoration: none;
    color: #6f6f6f;
    background-color: #f5f5f5;
    transition-duration: .2s;
}
.mensajes_function .lista_mensajes li > a:hover { background-color: #ffffff; }

.mensajes_function .lista_mensajes .adjunto {
    display: inline-block;
    width: .875rem;
    padding-right: 4px;
}
.mensajes_function .lista_mensajes .subject {
    padding: 3px 0;
    font-size: .938rem;
    font-weight: 700;
    color: #000000;
}
.mensajes_function .lista_mensajes .from {
    font-size: .875rem;
    color: #000000;
}
.mensajes_function .lista_mensajes .aula { font-size: .875rem; }

.mensajes_function .lista_mensajes .date {
    padding-top: 3px;
    font-size: .75rem;
    font-weight: 300;
}

/* -----------------------
   MODAL (para QR y otros)
   ----------------------- */
.modal_overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: 0;
    padding: 0;
    background-color: rgba(0, 0, 0, .7);
    z-index: 999;
}
.modal_overlay.oculto { display: none; }

.modal_container {
    position: relative;
    padding: 10px;
    background-color: #FFF;
    box-shadow: 0 0 20px 0 rgba(0, 0, 0, .8);
}
.modal_container .modal_close_btn {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 30px;
    height: 30px;
    border-radius: 30px;
    background-color: #000000;
    transition-duration: .4s;
    cursor: pointer;
}
.modal_container .modal_close_btn .icon {
    width: 30px;
    height: 30px;
    color: #fff;
    transition-duration: .4s;
}
.modal_container .modal_close_btn:hover { background-color: #ffffff; }

.modal_container .modal_close_btn:hover .icon { color: #000000; }

body.noscroll { overflow: hidden; }

/* Ajustar altura del modal de perfil de navegacion */
.modal_window .modal_wrapper.perfil_nav {
    height: 100%;
    max-height: 90vh;
}

/* Modal QR especifico */
.modal_container.qr { width: 300px; box-sizing: content-box; }

.modal_container.qr .desc {
    padding: 10px 0;
    font-size: .875rem;
}
.qr_data { position: relative; }

.qr_data .qr_overlay {
    position: absolute;
    top: 145px;
    left: 145px;
    width: 75px;
    height: 89px;
    margin-top: -3px;
    margin-left: -3px;
    outline: none;
    background-image: url(../img/comunes/qr_overlay.png);
    transform: translate(-50%, -50%);
}
.qr_update {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(50, 50, 50, .95);
    transition-duration: .4s;
    cursor: pointer;
}
.qr_update .icon {
    width: 175px;
    height: 175px;
    color: rgba(100, 100, 100, .9);
    transition-duration: .4;
}
.qr_update:hover { background-color: rgba(0, 0, 0, .95); }

.qr_update:hover .icon { color: rgba(255, 255, 255, .8); }


/* -------------------
   RESPONSIVE - Mobile
   ------------------- */
@media (max-width: 960px) {
    /* Topbar ajustes mobile */
    .topbar {
        padding: 0 8px;
        z-index: 200;
    }
    .topbar-nombre-instalacion { display: none; }

    .topbar-logo { height: calc(var(--topbar-height) - 20px); }

    .topbar-right { gap: 2px; }

    .topbar-center { padding: 0 12px; }

    /* Selector aula: reemplazar texto por icono en mobile */
    .topbar-breadcrumb .aula_sel_container { min-width: 0; }

    .topbar-breadcrumb .aula_sel_inner {
        justify-content: center;
        width: 36px;
        padding: 0;
    }

    .topbar-breadcrumb .aula_sel_list_single,
    .topbar-breadcrumb .aula_sel_arrow { display: none; }

    .topbar-breadcrumb .aula_sel_icon_mobile {
        display: block;
        font-size: 1.125rem;
        color: var(--topbar-text);
        pointer-events: none;
    }

    .topbar-user-name,
    .topbar-user-arrow { display: none; }

    .topbar-breadcrumb .breadcrumb-current {
        display: inline-block;
        vertical-align: middle;
        max-width: 120px;
    }

    /* Sidebar colapsada por defecto en movil */
    .icon-sidebar {
        left: -100%;
        width: 78%;
        max-width: 300px;
        box-shadow: 5px 0 150px 0 rgba(0, 0, 0, .6);
        transition: left .3s ease;
    }
    /* Sidebar visible cuando tiene clase 'show' */
    .icon-sidebar.show { left: 0; }

    /* Boton toggle para sidebar en movil */
    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        margin-right: 12px;
        font-size: 1.25rem;
        color: var(--theme-secondary-contrast);
        border: 2px solid var(--theme-secondary-contrast);
        border-radius: 4px;
        background-color: var(--theme-secondary);
        cursor: pointer;
    }
    /* Boton flotante para sidebar en movil */
    .sidebar-toggle-float {
        position: fixed;
        bottom: 10px;
        left: 10px;
        width: 34px;
        height: 34px;
        z-index: 100;
    }
    /* Cuando el footer esta visible, mover el boton toggle para no solaparse */
    body:has(.icon-sidebar.footer-visible) .sidebar-toggle-float { bottom: calc(var(--footer-height) + 10px); }

    .sidebar-toggle-float .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        font-size: 1.125rem;
        color: #fff;
        border: none;
        border-radius: 30px;
        background-color: var(--theme-secondary);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        cursor: pointer;
        opacity: .7;
        transition: all .4s;
    }
    .sidebar-toggle-float .sidebar-toggle:hover { background-color: var(--theme-secondary-hover); }

    /* Overlay oscuro */
    .sidebar-overlay {
        position: fixed;
        top: var(--topbar-height);
        right: 0;
        bottom: 0;
        left: 0;
        background-color: rgba(0, 0, 0, .4);
        pointer-events: none;
        opacity: 0;
        transition: opacity .3s ease;
        z-index: 50;
    }
    .sidebar-overlay.show {
        opacity: 1;
        pointer-events: auto;
    }
    /* Boton cerrar sidebar en movil */
    .icon-sidebar.show .icon-sidebar-header {
        display: flex;
        justify-content: flex-end;
    }
    .icon-sidebar-close {
        padding: 12px 14px;
        font-size: .875rem;
        color: #fff;
        background: none;
        border: none;
        cursor: pointer;
        opacity: .75;
        transition: opacity .2s;
    }
    .icon-sidebar-close:hover { opacity: 1; }

    /* Mostrar labels cuando la sidebar esta desplegada en movil */
    .icon-sidebar.show .icon-nav-item .icon-label {
        display: block;
        opacity: 1;
    }
    /* Expandir sidebar cuando esta desplegada */
    /* Flex column para que header y nav compartan el alto correctamente */
    .icon-sidebar.show {
        display: flex;
        flex-direction: column;
        width: 78%;
        max-width: 300px;
        z-index: var(--icon-sidebar-z-index);
    }
    /* El nav toma el espacio restante despues del header de cierre */
    .icon-sidebar.show .icon-nav {
        flex: 1;
        height: auto;
        min-height: 0;
    }
    /* Mostrar iconos de external link siempre visibles en movil */
    .icon-sidebar .icon-nav-item .icon-external-link {
        display: inline;
        opacity: 1;
    }

    /* Ocultar pin button en movil */
    .icon-sidebar-pin { display: none !important; }
}

/* Ocultar boton toggle y overlay en desktop */
@media (min-width: 961px) {
    .sidebar-toggle-float { display: none; }

    .sidebar-overlay { display: none; }

    /* Pin button: pseudo-item dentro del nav, antes del admin */
    /* Usar flex order para posicionarlo sin alterar el DOM del loop */
    .icon-nav-item[data-section="admin"] {
        order: 2;
        margin-top: 0;
    }

    /* En backend el pin no existe: restaurar margin-top para mantener admin al fondo */
    body.backend .icon-nav-item[data-section="admin"] { margin-top: auto; }

    /* Sin admin: el pin es el ultimo elemento; moverlo cuando el footer es visible */
    .icon-sidebar.footer-visible:not(:has(.icon-nav-item[data-section="admin"])) .icon-sidebar-pin {
        margin-bottom: var(--footer-height);
    }

    .icon-sidebar-pin {
        order: 1;
        margin-top: auto;
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 12px 14px 12px 12px;
        white-space: nowrap;
        border: none;
        border-left: 3px solid transparent;
        color: var(--icon-sidebar-text);
        background: none;
        cursor: pointer;
        opacity: .45;
        transition: opacity .2s;
    }
    .icon-sidebar-pin:hover { opacity: .75; }
    .icon-sidebar.pinned .icon-sidebar-pin { opacity: 1; }

    /* Icono: rotado = libre, derecho = pinned */
    .icon-sidebar-pin .fa-thumbtack {
        flex-shrink: 0;
        min-width: 20px;
        font-size: 1.25rem;
        text-align: center;
        transform: rotate(45deg);
        transition: transform .3s ease;
    }
    .icon-sidebar.pinned .icon-sidebar-pin .fa-thumbtack {
        transform: rotate(0deg);
    }

}

/* --- |Dropdowns topbar en pantallas muy reducidas --- */
@media (max-width: 648px) {
    .mensajes_popup {
        position: fixed;
        top: calc(var(--topbar-height) - 5px);
        left: 10px;
        right: 10px;
        width: auto;
    }
}

@media (max-width: 768px) {
    .topbar-breadcrumb .aula_sel_dropdown {
        position: fixed;
        top: calc(var(--topbar-height) - 12px);
        left: 10px;
        right: 10px;
        width: auto;
        min-width: 0;
    }

    .topbar-breadcrumb .edu-dropdown-menu {
        position: fixed;
        top: calc(var(--topbar-height) - 5px);
        left: 10px;
        right: 10px;
        width: auto;
        min-width: 0;
        max-width: none;
        margin-top: 0;
    }
}

/* Deshabilita transiciones durante resize para evitar flash al cruzar breakpoints */
.resize-in-progress .icon-sidebar { transition: none; }