body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
}
body:not(.dark-mode) {
    background-color: #f4f4f4;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
}

/* Estilos para la nueva página de login */
.login-body {
    background-image: url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
}

.login-body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.login-container {
    position: relative;
    z-index: 2;
    max-width: 400px;
    width: 100%;
    padding: 20px;
}

.login-card {
    background-color: #f8f9fa;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.login-logo {
    max-width: 150px;
    margin-bottom: 20px;
}

.login-card h2 {
    font-weight: 700;
    color: #333;
    margin-bottom: 25px;
}

.input-group-text {
    background-color: #e9ecef;
}

/* Estilos específicos para los inputs del login */
.login-card .input-group-text {
    border-right: 0;
}

.login-card .form-control {
    border-left: 0;
    border-radius: 0 .25rem .25rem 0;
}

.btn-login {
    background-color: #c8102e; /* Rojo institucional UBE */
    border-color: #c8102e;
    color: #fff;
    font-weight: bold;
    padding: 10px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn-login:hover {
    background-color: #a20c24;
    border-color: #a20c24;
    color: #fff;
}

.login-links {
    margin-top: 20px;
    text-align: center;
}

.login-links a {
    color: #555;
    font-size: 0.9em;
    margin: 0 10px;
    text-decoration: none;
}

.login-links a:hover {
    color: #000;
    text-decoration: underline;
}

/* ============================================== */
/* NUEVO DISEÑO DEL LOGIN (Estilo Moodle/Split)    */
/* ============================================== */
.login-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100%;
    font-family: 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

/* ---------- Panel izquierdo: imagen + bienvenida ---------- */
.login-left {
    flex: 1;
    position: relative;
    background-image: url('https://images.unsplash.com/photo-1481627834876-b7833e8f5570?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.login-left-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 30, 60, 0.88) 0%, rgba(20, 60, 110, 0.80) 100%);
}

.login-left-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding: 60px 50px;
    max-width: 560px;
    width: 100%;
}

/* ---------- Encabezado del panel izquierdo ---------- */
.quotes-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 30px;
}

.quotes-icon {
    font-size: 2rem;
    color: #ffc107;
}

.quotes-title {
    font-size: 1.6rem;
    font-weight: 600;
    margin: 0;
    color: #fff;
}

/* ---------- Carrusel de frases ---------- */
.quotes-carousel {
    position: relative;
    min-height: 220px;
    margin-bottom: 30px;
}

.quote-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    pointer-events: none;
}

.quote-slide.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.quote-mark {
    font-size: 2rem;
    color: #ffc107;
    opacity: 0.85;
    margin-bottom: 12px;
    display: block;
}

.quote-text {
    font-size: 1.35rem;
    line-height: 1.55;
    color: #fff;
    font-weight: 500;
    font-style: italic;
    margin-bottom: 14px;
}

.quote-author {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: #ffc107;
    letter-spacing: 0.3px;
}

.quote-dots {
    position: absolute;
    bottom: -10px;
    left: 0;
    display: flex;
    gap: 8px;
}

.quote-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    transition: background-color 0.25s, transform 0.25s;
}

.quote-dot.active {
    background-color: #ffc107;
    transform: scale(1.25);
}

.quote-dot:hover {
    background-color: rgba(255, 255, 255, 0.7);
}

.login-stats {
    display: flex;
    gap: 35px;
    margin-top: 35px;
    flex-wrap: wrap;
}

.login-stat {
    display: flex;
    flex-direction: column;
}

.login-stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: #fff;
    line-height: 1;
}

.login-stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 4px;
}

/* ---------- Panel derecho: formulario ---------- */
.login-right {
    flex: 1;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 30px;
}

.login-form-container {
    width: 100%;
    max-width: 420px;
}

.login-logo-new {
    max-width: 220px;
    max-height: 110px;
    height: auto;
    object-fit: contain;
}

.login-form-title {
    font-size: 1.85rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 6px;
}

.login-form-subtitle {
    color: #6c757d;
    font-size: 0.95rem;
    margin-bottom: 28px;
}

.form-group-new {
    margin-bottom: 18px;
}

.login-label {
    display: block;
    font-size: 0.92rem;
    color: #333;
    margin-bottom: 6px;
    font-weight: 500;
}

.login-input {
    width: 100%;
    padding: 12px 14px;
    font-size: 0.95rem;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    background-color: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.login-input:focus {
    border-color: #c8102e;
    box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.12);
}

.login-input.is-invalid-new {
    border-color: #dc3545;
}

.login-error {
    color: #dc3545;
    font-size: 0.82rem;
    margin-top: 4px;
    display: block;
}

.password-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6c757d;
    cursor: pointer;
    padding: 4px 8px;
    font-size: 1rem;
}

.password-toggle:hover {
    color: #1a1a1a;
}

.login-forgot {
    color: #0d6efd;
    font-size: 0.88rem;
    text-decoration: none;
}

.login-forgot:hover {
    text-decoration: underline;
}

.btn-login-new {
    width: 100%;
    padding: 12px;
    background-color: #c8102e;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.05s;
    margin-top: 8px;
}

.btn-login-new:hover {
    background-color: #a20c24;
}

.btn-login-new:active {
    transform: translateY(1px);
}

.login-footer-text {
    text-align: center;
    color: #8b95a1;
    margin-top: 30px;
    font-size: 0.8rem;
}

/* ---------- Responsive: en móviles ocultar el panel izquierdo ---------- */
@media (max-width: 900px) {
    .login-left {
        display: none;
    }
    .login-right {
        padding: 30px 20px;
    }
    .login-form-container {
        max-width: 100%;
    }
}

/* Estilos para el Dashboard del Admin */
.dashboard-card {
    border-radius: 5px;
    color: #fff;
    padding: 20px;
    position: relative;
    margin-bottom: 30px;
    min-height: 140px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    transition: transform 0.2s ease-in-out;
}

.dashboard-card:hover {
    transform: translateY(-5px);
}

.dashboard-card .stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    margin: 0;
    line-height: 1;
}

.dashboard-card .stat-title {
    font-size: 1.1rem;
    margin: 0;
    padding-top: 5px;
}

.dashboard-card .card-icon {
    position: absolute;
    top: 50%;
    right: 25px;
    transform: translateY(-50%);
    font-size: 5rem;
    opacity: 0.2;
    transition: opacity 0.3s;
}

.dashboard-card:hover .card-icon {
    opacity: 0.4;
}

.dashboard-card .card-footer-link {
    background-color: rgba(0,0,0,0.15);
    padding: 5px 15px;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: center;
    border-radius: 0 0 5px 5px;
}

.dashboard-card .card-footer-link a {
    color: #fff;
    text-decoration: none;
    display: block;
}

.bg-teal { background-color: #17a2b8 !important; } /* Cursos */
.bg-green { background-color: #28a745 !important; } /* Estudiantes */
.bg-yellow { background-color: #ffc107 !important; color: #333 !important; } /* Docentes */
.bg-yellow a { color: #333 !important; }
.bg-red { background-color: #dc3545 !important; } /* Usuarios */

/* Estilos para las tarjetas de gestión del Admin */
.management-card {
    transition: all 0.3s ease;
    border: 1px solid #ddd;
}

.management-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.management-card .card-body {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 200px;
}

.management-card .card-title {
    font-weight: 600;
}

/* Insignia de notificación en las tarjetas del admin */
.admin-card-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    border-radius: 50%;
    padding: 0.5em 0.7em;
    font-size: 0.8rem;
    border: 2px solid white;
}

/* ======================================================================
   AdminLTE — ajustes del marco (logo, contenido, barra superior)
   ====================================================================== */
.brand-link .brand-text {
    font-size: 1rem;
    letter-spacing: 0.02em;
}
.main-sidebar .nav-header {
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    padding-top: 1rem;
    padding-bottom: 0.35rem;
}
.content-wrapper > .content {
    min-height: calc(100vh - 3.5rem);
}

/* ======================================================================
   AdminLTE — ARMONÍA DE LOS LISTADOS
   Todos los listados usan: card card-{color} card-outline → header → body p-0 → footer
   ====================================================================== */

/* Título del card: tamaño consistente con icono */
.card > .card-header > .card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0;
    line-height: 1.2;
    display: inline-flex;
    align-items: center;
}
.card > .card-header > .card-title .badge {
    font-size: 0.78rem;
    padding: 0.35em 0.6em;
}

/* Card-tools (acciones de la derecha) sin float roto */
.card > .card-header .card-tools {
    margin-right: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.card > .card-header .card-tools .btn-sm i + span,
.card > .card-header .card-tools .btn-sm {
    white-space: nowrap;
}

/* La línea coloreada de card-outline más visible */
.card.card-outline {
    border-top-width: 3px;
}

/* Tablas dentro de card-body p-0: bordes limpios y respiro */
.card > .card-body.p-0 > .table-responsive {
    border-radius: 0 0 0.25rem 0.25rem;
}
.card > .card-body.p-0 table.table {
    margin-bottom: 0;
}
.card > .card-body.p-0 table.table > thead.thead-light th {
    border-top: 0;
    background-color: #f4f6f9;
    color: #495057;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}
.card > .card-body.p-0 table.table > tbody td {
    vertical-align: middle;
    font-size: 0.92rem;
}

/* Footer: barra fina informativa con borde claro */
.card > .card-footer {
    background-color: #f8f9fa;
    border-top: 1px solid #e9ecef;
    padding: 0.55rem 1rem;
    font-size: 0.85rem;
}

/* Estado vacío centrado en card-body */
.card > .card-body > .text-center.py-5 > .fa-3x {
    color: #ced4da;
}

/* Botones de acción de tabla: misma altura */
.btn.btn-sm i + i { margin-left: 0.15rem; }
table .btn-sm { padding: 0.18rem 0.45rem; }
table form.d-inline + .btn,
table .btn + form.d-inline { margin-left: 0.15rem; }

/* ======================================================================
   DATATABLES — ajustes finos dentro de tarjetas Bootstrap
   ====================================================================== */
.dataTables_wrapper {
    padding: 0.75rem 0.5rem 0.25rem;
    font-size: 0.92rem;
}
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
    margin-bottom: 0.75rem;
}
.dataTables_wrapper .dataTables_filter input {
    border-radius: 0.25rem;
    padding: 0.35rem 0.6rem;
    border: 1px solid #ced4da;
    min-width: 220px;
}
.dataTables_wrapper .dataTables_length select {
    border-radius: 0.25rem;
    padding: 0.25rem 1.5rem 0.25rem 0.5rem;
}
.dataTables_wrapper .dataTables_info {
    padding-top: 0.75rem !important;
    color: #6c757d;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: #007bff !important;
    color: #fff !important;
    border-color: #007bff !important;
}

/* Quitar la rayita debajo del input de búsqueda que pone bootstrap4 theme */
table.dataTable.no-footer { border-bottom: 1px solid #dee2e6; }

/* ======================================================================
   TOASTR — pequeño retoque para que combine con el sistema
   ====================================================================== */
#toast-container > .toast {
    opacity: 1 !important;
    box-shadow: 0 6px 18px rgba(0,0,0,0.15);
    border-radius: 0.4rem;
}
#toast-container > .toast-success { background-color: #28a745; }
#toast-container > .toast-error   { background-color: #dc3545; }
#toast-container > .toast-warning { background-color: #ffc107; color: #212529; }
#toast-container > .toast-info    { background-color: #17a2b8; }

/* ======================================================================
   SWEETALERT2 — usar la misma tipografía y bordes de Bootstrap
   ====================================================================== */
.swal2-popup {
    border-radius: 0.5rem;
}
.swal2-popup .swal2-title  { font-size: 1.3rem; }
.swal2-popup .swal2-html-container { font-size: 0.95rem; white-space: pre-line; }

/* ======================================================================
   SELECT2 + BOOTSTRAP 4 / ADMINLTE — ajustes finos de integración
   ====================================================================== */

/* Que la altura coincida exactamente con form-control */
.select2-container--bootstrap4 .select2-selection--single {
    height: calc(2.25rem + 2px) !important;
    padding: 0.375rem 0.75rem !important;
    line-height: 1.5 !important;
    border: 1px solid #ced4da !important;
}
.select2-container--bootstrap4 .select2-selection--single .select2-selection__rendered {
    padding: 0 !important;
    line-height: 1.5 !important;
    color: #495057;
}
.select2-container--bootstrap4 .select2-selection--single .select2-selection__arrow {
    height: 100% !important;
    top: 0 !important;
}

/* Cuando el <select> está en estado .is-invalid: borde rojo y feedback */
.is-invalid + .select2-container--bootstrap4 .select2-selection,
.was-validated .form-control:invalid + .select2-container--bootstrap4 .select2-selection {
    border-color: #dc3545 !important;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.10);
}

/* Estado focus: borde azul como los inputs */
.select2-container--bootstrap4.select2-container--focus .select2-selection {
    border-color: #80bdff !important;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.15) !important;
}

/* Soporte para input-group: que el select2 ocupe el resto del ancho */
.input-group > .select2-container--bootstrap4 {
    flex: 1 1 auto;
    width: 1% !important;
}

/* Resultados del desplegable un poco más cómodos */
.select2-container--bootstrap4 .select2-results__option {
    padding: 0.45rem 0.85rem;
}
.select2-container--bootstrap4 .select2-results__option--highlighted[aria-selected] {
    background-color: #007bff !important;
}

/* Cuando es un select dentro de un card-success/info/etc, mantener consistencia */
.select2-dropdown { border-color: #ced4da; }


/* ============================================================
   FASE 6.1 — Botones de exportación de DataTables
   ============================================================ */
div.dt-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 8px;
}
div.dt-buttons .btn {
    border-color: #ced4da;
    background-color: #fff;
    color: #495057;
    font-size: 0.875rem;
    box-shadow: 0 1px 1px rgba(0,0,0,.04);
    transition: background-color .15s, box-shadow .15s;
}
div.dt-buttons .btn:hover {
    background-color: #f8f9fa;
    border-color: #adb5bd;
    color: #212529;
    box-shadow: 0 1px 2px rgba(0,0,0,.08);
}
div.dt-buttons .btn i {
    margin-right: 4px;
}
@media (max-width: 575.98px) {
    div.dt-buttons {
        justify-content: center;
    }
    div.dt-buttons .btn {
        flex: 1 1 auto;
    }
}


/* ============================================================
   FASE 7.1 — MODO OSCURO
   AdminLTE 3 incluye dark-mode out of the box; aquí solo
   sobrescribimos los retoques personalizados (thead-light,
   card-footer, dataTables, dt-buttons) para que también
   se vean bien en oscuro.
   ============================================================ */

/* Botón switch en navbar: efecto sutil al hover */
.theme-toggle i {
    font-size: 1.1rem;
    transition: transform 0.3s ease, color 0.2s ease;
}
.theme-toggle:hover i {
    transform: rotate(15deg) scale(1.1);
}
body.dark-mode .theme-toggle i.fa-sun {
    color: #ffc107;
}

/* Cards en oscuro: bordes y sombras más suaves */
body.dark-mode .card {
    background-color: #343a40;
    color: #e9ecef;
    border-color: rgba(255,255,255,0.06);
}
body.dark-mode .card.card-outline {
    border-top-width: 3px;
}

/* Cabeceras de tabla "thead-light" se invierten */
body.dark-mode .card > .card-body.p-0 table.table > thead.thead-light th {
    background-color: #2b3035;
    color: #c8d0d8;
    border-color: #1f2327;
}
body.dark-mode .card > .card-body.p-0 table.table > tbody td {
    color: #dee2e6;
    border-color: #495057;
}
body.dark-mode .card > .card-body.p-0 table.table > tbody tr:hover td {
    background-color: rgba(255,255,255,0.04);
}

/* Footers de card */
body.dark-mode .card > .card-footer {
    background-color: #2b3035;
    border-top: 1px solid #1f2327;
    color: #c8d0d8;
}

/* DataTables */
body.dark-mode .dataTables_wrapper {
    color: #dee2e6;
}
body.dark-mode .dataTables_wrapper .dataTables_filter input,
body.dark-mode .dataTables_wrapper .dataTables_length select {
    background-color: #2b3035;
    border-color: #495057;
    color: #e9ecef;
}
body.dark-mode .dataTables_wrapper .dataTables_filter input::placeholder {
    color: #adb5bd;
}
body.dark-mode .dataTables_wrapper .dataTables_info {
    color: #adb5bd;
}
body.dark-mode table.dataTable.no-footer {
    border-bottom-color: #495057;
}
body.dark-mode .page-link {
    background-color: #2b3035;
    border-color: #495057;
    color: #e9ecef;
}
body.dark-mode .page-item.disabled .page-link {
    background-color: #1f2327;
    color: #6c757d;
}

/* Botones de exportación (DataTables Buttons) */
body.dark-mode div.dt-buttons .btn {
    background-color: #2b3035;
    border-color: #495057;
    color: #e9ecef;
}
body.dark-mode div.dt-buttons .btn:hover {
    background-color: #343a40;
    border-color: #6c757d;
    color: #fff;
}

/* Inputs y selects estándar también */
body.dark-mode .form-control,
body.dark-mode .custom-select {
    background-color: #2b3035;
    border-color: #495057;
    color: #e9ecef;
}
body.dark-mode .form-control:focus {
    background-color: #2b3035;
    border-color: #80bdff;
    color: #fff;
}
body.dark-mode .input-group-text {
    background-color: #1f2327;
    border-color: #495057;
    color: #c8d0d8;
}

/* Select2: integrar con dark-mode */
body.dark-mode .select2-container--bootstrap4 .select2-selection--single,
body.dark-mode .select2-container--bootstrap4 .select2-selection--multiple {
    background-color: #2b3035 !important;
    border-color: #495057 !important;
    color: #e9ecef !important;
}
body.dark-mode .select2-container--bootstrap4 .select2-selection--single .select2-selection__rendered {
    color: #e9ecef !important;
}
body.dark-mode .select2-dropdown {
    background-color: #2b3035;
    border-color: #495057;
    color: #e9ecef;
}
body.dark-mode .select2-container--bootstrap4 .select2-search--dropdown .select2-search__field {
    background-color: #1f2327;
    border-color: #495057;
    color: #e9ecef;
}
body.dark-mode .select2-container--bootstrap4 .select2-results__option--highlighted[aria-selected] {
    background-color: #0d6efd !important;
}

/* Texto secundario y muted con mejor contraste */
body.dark-mode .text-muted {
    color: #adb5bd !important;
}
body.dark-mode .small,
body.dark-mode small {
    color: #ced4da;
}

/* Modales */
body.dark-mode .modal-content {
    background-color: #343a40;
    color: #e9ecef;
    border-color: #495057;
}
body.dark-mode .modal-header,
body.dark-mode .modal-footer {
    border-color: #495057;
}

/* Badges light se invierten para que se lean */
body.dark-mode .badge-light {
    background-color: #495057;
    color: #f8f9fa;
}

/* Breadcrumbs */
body.dark-mode .breadcrumb {
    background-color: transparent;
}
body.dark-mode .breadcrumb-item.active {
    color: #c8d0d8;
}
body.dark-mode .breadcrumb-item + .breadcrumb-item::before {
    color: #6c757d;
}

/* Tab content (papelera, perfil...) */
body.dark-mode .nav-tabs {
    border-bottom-color: #495057;
}
body.dark-mode .nav-tabs .nav-link {
    color: #adb5bd;
}
body.dark-mode .nav-tabs .nav-link.active {
    background-color: #343a40;
    border-color: #495057 #495057 #343a40;
    color: #fff;
}

/* Empty states con icono grande */
body.dark-mode .card > .card-body > .text-center.py-5 > .fa-3x {
    color: #495057;
}


/* ============================================================
   FASE 7.2 — PULIDO FINAL
   ============================================================ */

/* ---------- Fade-in del contenido principal al cambiar de página ---------- */
.content-wrapper > .content {
    animation: app-fade-in 240ms ease-out both;
}
@keyframes app-fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Modales por encima de sidebar/navbar AdminLTE (evita quedar "detrás") */
.modal-backdrop {
    z-index: 1040 !important;
}
.modal {
    z-index: 1050 !important;
}
#modalCertExterno,
#modalAsesorEstudiante,
#modalTarifaDocente,
#modalCronograma,
#modalAdelanto {
    z-index: 1055 !important;
}
#modalTarifaDocente .modal-dialog,
#modalCronograma .modal-dialog,
#modalAdelanto .modal-dialog {
    z-index: 1056 !important;
}

/* Select2 dentro de modales: lista visible por encima del footer del modal */
.select2-container--open {
    z-index: 1070 !important;
}
.select2-dropdown {
    z-index: 1070 !important;
}
#modalAsesorEstudiante,
#modalAsesorEstudiante .modal-dialog,
#modalAsesorEstudiante .modal-content,
#modalCertExterno,
#modalCertExterno .modal-dialog,
#modalCertExterno .modal-content {
    overflow: visible !important;
}
#modalAsesorEstudiante .modal-body,
#modalCertExterno .modal-body {
    overflow: visible !important;
}
body.layout-navbar-fixed .main-header {
    z-index: 1030;
}
body.layout-fixed .main-sidebar {
    z-index: 1038;
}

/* ---------- Tarjetas con elevación suave al hover ---------- */
.card {
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card.card-outline:hover,
.card.shadow-sm:hover {
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.10) !important;
    transform: translateY(-1px);
}
body.dark-mode .card.card-outline:hover,
body.dark-mode .card.shadow-sm:hover {
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.45) !important;
}

/* Excepción: cards dentro de tabs no se "levantan" (rompe el flow visual) */
.tab-content .card.card-outline:hover,
.tab-content .card.shadow-sm:hover {
    transform: none;
}

/* ---------- Pulso sutil en los botones primarios al hover ---------- */
.btn {
    transition: transform 0.08s ease, box-shadow 0.15s ease,
                background-color 0.15s ease, border-color 0.15s ease;
}
.btn:active:not(:disabled) {
    transform: translateY(1px);
}
.btn-primary:hover:not(:disabled),
.btn-success:hover:not(:disabled),
.btn-danger:hover:not(:disabled),
.btn-warning:hover:not(:disabled),
.btn-info:hover:not(:disabled) {
    box-shadow: 0 4px 10px -3px rgba(0, 0, 0, 0.25);
}

/* ---------- Focus rings consistentes y accesibles ---------- */
.form-control:focus,
.custom-select:focus,
.btn:focus,
.page-link:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.20) !important;
    outline: none;
}
body.dark-mode .form-control:focus,
body.dark-mode .custom-select:focus,
body.dark-mode .btn:focus,
body.dark-mode .page-link:focus {
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.35) !important;
}

/* ---------- Sidebar: animación más suave del active ---------- */
.main-sidebar .nav-sidebar .nav-link {
    transition: background-color 0.15s ease, color 0.15s ease, padding-left 0.15s ease;
}
.main-sidebar .nav-sidebar .nav-link:hover {
    padding-left: 1.05rem;
}
.main-sidebar .nav-sidebar .nav-link.active {
    box-shadow: inset 4px 0 0 rgba(255, 255, 255, 0.35);
}

/* ---------- Comisiones: cuadre legible en claro y oscuro ---------- */
.comisiones-cuadre-item {
    background: #f4f6f9;
    border: 1px solid #dee2e6;
}
.comisiones-cuadre-label {
    color: #495057;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}
.comisiones-cuadre-monto {
    color: #212529;
    line-height: 1.2;
}
.comisiones-cuadre-monto-success {
    color: #198754 !important;
}
.comisiones-cuadre-monto-danger {
    color: #dc3545 !important;
}
.comisiones-cuadre-hint,
.comisiones-cuadre-nota {
    color: #6c757d;
}
.comisiones-cuadre-devengo {
    background: #e8f6ee;
    border-color: #b8dfc8;
}
.comisiones-cuadre-pagado {
    background: #fdecec;
    border-color: #f5c2c7;
}
.comisiones-cuadre-cobros {
    background: #eef2f7;
    border-color: #c5d0dc;
}
body.dark-mode .comisiones-cuadre-item {
    background: #2b3035;
    border-color: #495057;
}
body.dark-mode .comisiones-cuadre-label {
    color: #ced4da;
}
body.dark-mode .comisiones-cuadre-monto {
    color: #f8f9fa;
}
body.dark-mode .comisiones-cuadre-monto-success {
    color: #75e0a3 !important;
}
body.dark-mode .comisiones-cuadre-monto-danger {
    color: #ff8a8a !important;
}
body.dark-mode .comisiones-cuadre-hint,
body.dark-mode .comisiones-cuadre-nota {
    color: #adb5bd;
}
body.dark-mode .comisiones-cuadre-devengo {
    background: #1a3328;
    border-color: #2d6a4f;
}
body.dark-mode .comisiones-cuadre-pagado {
    background: #3d2224;
    border-color: #842029;
}
body.dark-mode .comisiones-cuadre-cobros {
    background: #252a30;
    border-color: #495057;
}

/* Modal tarifa docente — panel de cálculo legible en claro/oscuro */
.docente-tarifa-calc-panel {
    background: #f4f6f9;
    border-color: #dee2e6 !important;
}
.docente-tarifa-calc-panel .h4,
.docente-tarifa-calc-panel .h5 {
    color: inherit;
}
body.dark-mode .docente-tarifa-calc-panel {
    background: #2b3035;
    border-color: #495057 !important;
}
body.dark-mode .docente-tarifa-calc-panel .text-muted {
    color: #adb5bd !important;
}
body.dark-mode .docente-tarifa-calc-panel #calcTotal {
    color: #75e0a3 !important;
}
body.dark-mode .docente-tarifa-modal .alert-warning {
    background-color: #3d3520;
    border-color: #856404;
    color: #ffeeba;
}
body.dark-mode .modal-backdrop.show {
    opacity: 0.72;
}

/* ---------- Empty States estándar (.empty-state) ---------- */
.empty-state {
    text-align: center;
    padding: 3.5rem 1.25rem;
    color: #6c757d;
}
.empty-state .empty-state-icon {
    font-size: 3.5rem;
    color: #ced4da;
    margin-bottom: 0.75rem;
    display: inline-block;
    line-height: 1;
    transition: transform 0.25s ease;
}
.empty-state:hover .empty-state-icon {
    transform: scale(1.05) rotate(-3deg);
}
.empty-state .empty-state-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0.5rem 0 0.25rem;
    color: #495057;
}
.empty-state .empty-state-text {
    font-size: 0.92rem;
    margin: 0 auto 1rem;
    max-width: 360px;
}
.empty-state .empty-state-actions .btn {
    margin: 0.15rem;
}
body.dark-mode .empty-state {
    color: #adb5bd;
}
body.dark-mode .empty-state .empty-state-icon {
    color: #495057;
}
body.dark-mode .empty-state .empty-state-title {
    color: #f8f9fa;
}

/* ---------- Loading overlay (full-screen blocker) ---------- */
#app-loading {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.75);
    z-index: 10500;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease;
    backdrop-filter: blur(2px);
}
#app-loading.is-active {
    opacity: 1;
    pointer-events: auto;
}
body.dark-mode #app-loading {
    background: rgba(20, 24, 28, 0.78);
}
#app-loading .app-spinner {
    width: 52px;
    height: 52px;
    border: 4px solid rgba(0, 123, 255, 0.18);
    border-top-color: #007bff;
    border-radius: 50%;
    animation: app-spin 0.85s linear infinite;
}
#app-loading .app-spinner-text {
    font-size: 0.92rem;
    color: #495057;
    font-weight: 500;
    letter-spacing: 0.02em;
}
body.dark-mode #app-loading .app-spinner-text {
    color: #e9ecef;
}
@keyframes app-spin {
    to { transform: rotate(360deg); }
}

/* Botones "loading" inline (cuando se envía un form) */
.btn.is-loading {
    position: relative;
    pointer-events: none;
    color: transparent !important;
}
.btn.is-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1em;
    height: 1em;
    margin-top: -0.5em;
    margin-left: -0.5em;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: app-spin 0.7s linear infinite;
    color: #fff;
}
.btn-light.is-loading::after,
.btn-default.is-loading::after,
.btn-outline-secondary.is-loading::after {
    color: #495057;
}

/* ---------- DataTables: smoother row hover ---------- */
table.dataTable tbody tr {
    transition: background-color 0.12s ease;
}

/* ---------- Animación entrada en filas nuevas (opt-in) ---------- */
.row-fade-in > * {
    animation: app-fade-in 280ms ease-out both;
}

/* ---------- Respeto a prefers-reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ---------- Scroll suave global ---------- */
html { scroll-behavior: smooth; }