/**
 * UV Theme - Sistema de Diseño Minimalista e Institucional
 * Universidad Veracruzana - DGAE / CISI
 * Versión 2.0 - Arquitectura Centralizada
 */

:root {
    /* Paleta Institucional UV Primaria y Secundaria */
    --uv-blue: #003366;
    --uv-blue-secondary: #18529D;
    --uv-blue-dark: #002244;
    --uv-blue-light: #0b457a;
    --uv-blue-tint: #edf4fa;
    --uv-blue-border: #b8d5ed;

    --uv-green: #007A33;
    --uv-green-secondary: #28AD56;
    --uv-green-dark: #005924;
    --uv-green-light: #128a3f;
    --uv-green-tint: #eaf5ee;
    --uv-green-border: #b2dec0;

    /* Acentos y Notificaciones */
    --uv-warning: #d97706;
    --uv-warning-tint: #fffbeb;
    --uv-warning-border: #fde68a;

    --uv-danger: #dc2626;
    --uv-danger-tint: #fef2f2;
    --uv-danger-border: #fecaca;

    /* Neutros y Superficies Minimalistas */
    --uv-bg: #f8fafc;
    --uv-card-bg: #ffffff;
    --uv-surface: #ffffff;
    --uv-border: #e2e8f0;
    --uv-border-focus: #003366;

    --uv-text-main: #0f172a;
    --uv-text-muted: #64748b;
    --uv-text-light: #94a3b8;

    /* Sombras Elevadas y Suaves */
    --uv-shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --uv-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.04);
    --uv-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --uv-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);

    /* Radios de Curvatura */
    --uv-radius-sm: 6px;
    --uv-radius: 10px;
    --uv-radius-lg: 16px;
    --uv-radius-pill: 9999px;

    /* Transiciones */
    --uv-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Base y Reset
   ========================================================================== */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--uv-bg) !important;
    color: var(--uv-text-main) !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
    font-size: 0.95rem;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Layout Administrativo (Sidebar, Topbar, Main Container)
   ========================================================================== */
.admin-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--uv-bg);
}

.admin-sidebar {
    width: 260px;
    background: #ffffff;
    border-right: 1px solid var(--uv-border);
    display: flex;
    flex-direction: column;
    transition: var(--uv-transition);
    z-index: 1000;
    flex-shrink: 0;
    box-shadow: var(--uv-shadow-xs);
}

.admin-sidebar.collapsed {
    margin-left: -260px;
}

.sidebar-header {
    background-color: var(--uv-blue);
    color: #ffffff;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-header img {
    border-radius: var(--uv-radius-sm);
    background: #ffffff;
    padding: 2px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.sidebar-header h5 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.sidebar-menu {
    padding: 0.75rem 0;
    overflow-y: auto;
    flex-grow: 1;
}

.sidebar-menu .collapse.show {
    background-color: var(--uv-blue-tint);
    border-top: 1px solid rgba(0, 51, 102, 0.05);
    border-bottom: 1px solid rgba(0, 51, 102, 0.05);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0.75rem 1.5rem;
    color: var(--uv-text-main);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: var(--uv-transition);
    cursor: pointer;
    border-left: 4px solid transparent;
}

.sidebar-item:hover {
    background-color: var(--uv-blue-tint);
    color: var(--uv-blue);
    text-decoration: none;
}

.sidebar-item.modulo_nombre_list.active {
    background-color: var(--uv-blue-tint);
    color: var(--uv-blue);
    font-weight: 600;
    border-left-color: var(--uv-blue);
}

.admin-main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    min-width: 0;
}

.admin-topbar {
    background: #ffffff;
    border-bottom: 1px solid var(--uv-border);
    padding: 0.75rem 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--uv-shadow-xs);
    position: sticky;
    top: 0;
    z-index: 900;
}

.admin-topbar .btn-toggle {
    color: var(--uv-blue);
    background: var(--uv-blue-tint);
    border: 1px solid var(--uv-blue-border);
    border-radius: var(--uv-radius-sm);
    padding: 0.4rem 0.75rem;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--uv-transition);
}

.admin-topbar .btn-toggle:hover {
    background: var(--uv-blue);
    color: #ffffff;
}

.admin-content {
    padding: 1.75rem;
    flex-grow: 1;
}

.admin-footer {
    background: #ffffff;
    border-top: 1px solid var(--uv-border);
    color: var(--uv-text-muted);
    font-size: 0.82rem;
    padding: 0.85rem 1.75rem;
    text-align: center;
}

/* ==========================================================================
   Login / Acceso Institucional
   ========================================================================== */
#panel-inicio {
    min-height: 100vh;
    background-color: #ffffff;
}

#panel-izq {
    background-image: url("../images/RegistroAspirantes.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    position: relative;
    min-height: 100vh;
}

#panel-izq::after {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.75) 0%, rgba(0, 122, 51, 0.65) 100%);
}

#panel-der {
    background-color: var(--uv-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card {
    background: #ffffff;
    padding: 2.5rem 2rem;
    border-radius: var(--uv-radius-lg);
    box-shadow: var(--uv-shadow-lg);
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--uv-border);
}

.login-card .brand-logo {
    height: 70px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1rem;
}

.login-card .brand-title {
    color: var(--uv-blue);
    font-weight: 700;
    font-size: 1.35rem;
    margin-bottom: 0.25rem;
}

.login-card .brand-subtitle {
    color: var(--uv-text-muted);
    font-size: 0.88rem;
    margin-bottom: 1.75rem;
}

.login-button {
    background-color: var(--uv-blue) !important;
    color: #ffffff !important;
    font-weight: 600;
    border-radius: var(--uv-radius-sm);
    padding: 0.65rem 1.25rem;
    transition: var(--uv-transition);
    border: none !important;
}

.login-button:hover {
    background-color: var(--uv-blue-secondary) !important;
    box-shadow: 0 4px 12px rgba(0, 51, 102, 0.25);
}

.creditos-cisi {
    text-align: center;
    font-size: 0.82rem;
    color: var(--uv-text-muted);
    margin-top: 1.5rem;
}

/* ==========================================================================
   Tarjetas (Cards) Minimalistas
   ========================================================================== */
.uv-card {
    background: var(--uv-card-bg);
    border: 1px solid var(--uv-border);
    border-radius: var(--uv-radius);
    box-shadow: var(--uv-shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: var(--uv-transition);
}

.uv-card:hover {
    box-shadow: var(--uv-shadow);
}

.uv-card-header {
    border-bottom: 1px solid var(--uv-border);
    padding-bottom: 0.85rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.uv-card-title {
    color: var(--uv-blue);
    font-weight: 700;
    font-size: 1.15rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ==========================================================================
   Barra de Filtros Institucional
   ========================================================================== */
.uv-filter-bar {
    background: #ffffff;
    border: 1px solid var(--uv-border);
    border-radius: var(--uv-radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--uv-shadow-xs);
}

.form-label-uv {
    font-weight: 600;
    font-size: 0.84rem;
    color: var(--uv-text-main);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.form-control-uv,
.form-select-uv,
.form-select.selFiltros {
    border: 1px solid var(--uv-border) !important;
    border-radius: var(--uv-radius-sm) !important;
    padding: 0.45rem 0.75rem;
    font-size: 0.88rem;
    color: var(--uv-text-main);
    background-color: #ffffff;
    transition: var(--uv-transition);
}

.form-control-uv:focus,
.form-select-uv:focus,
.form-select.selFiltros:focus {
    border-color: var(--uv-blue) !important;
    outline: 0;
    box-shadow: 0 0 0 3px rgba(0, 51, 102, 0.15) !important;
}

/* ==========================================================================
   Botones Institucionales UV
   ========================================================================== */
.btn-uv-primary,
.btn-primary {
    background-color: var(--uv-blue) !important;
    border-color: var(--uv-blue) !important;
    color: #ffffff !important;
    font-weight: 600;
    border-radius: var(--uv-radius-sm);
    transition: var(--uv-transition);
}

.btn-uv-primary:hover,
.btn-primary:hover {
    background-color: var(--uv-blue-secondary) !important;
    border-color: var(--uv-blue-secondary) !important;
    box-shadow: 0 2px 6px rgba(0, 51, 102, 0.25);
}

.btn-uv-success,
.btn-success {
    background-color: var(--uv-green) !important;
    border-color: var(--uv-green) !important;
    color: #ffffff !important;
    font-weight: 600;
    border-radius: var(--uv-radius-sm);
    transition: var(--uv-transition);
}

.btn-uv-success:hover,
.btn-success:hover {
    background-color: var(--uv-green-dark) !important;
    border-color: var(--uv-green-dark) !important;
    box-shadow: 0 2px 6px rgba(0, 122, 51, 0.25);
}

.btn-uv-outline-primary,
.btn-outline-primary {
    background-color: transparent !important;
    border: 1px solid var(--uv-blue) !important;
    color: var(--uv-blue) !important;
    font-weight: 600;
    border-radius: var(--uv-radius-sm);
    transition: var(--uv-transition);
}

.btn-uv-outline-primary:hover,
.btn-outline-primary:hover {
    background-color: var(--uv-blue-tint) !important;
    color: var(--uv-blue) !important;
    border-color: var(--uv-blue) !important;
}

.btn-uv-outline-success,
.btn-outline-success {
    background-color: transparent !important;
    border: 1px solid var(--uv-green) !important;
    color: var(--uv-green) !important;
    font-weight: 600;
    border-radius: var(--uv-radius-sm);
    transition: var(--uv-transition);
}

.btn-uv-outline-success:hover,
.btn-outline-success:hover {
    background-color: var(--uv-green-tint) !important;
    color: var(--uv-green-dark) !important;
}

/* ==========================================================================
   Pestañas (Tabs) Institucionales
   ========================================================================== */
.nav-tabs {
    border-bottom: 2px solid var(--uv-border) !important;
    margin-bottom: 1rem;
    gap: 4px;
}

.nav-tabs .nav-link {
    color: var(--uv-text-muted) !important;
    font-weight: 600 !important;
    border: none !important;
    border-bottom: 3px solid transparent !important;
    padding: 0.65rem 1.25rem !important;
    border-radius: 0 !important;
    background: transparent !important;
    transition: var(--uv-transition);
    font-size: 0.92rem;
}

.nav-tabs .nav-link:hover {
    color: var(--uv-blue) !important;
    border-bottom-color: var(--uv-blue-border) !important;
}

.nav-tabs .nav-link.active {
    color: var(--uv-blue) !important;
    border-bottom-color: var(--uv-blue) !important;
    background: transparent !important;
}

.tab-pane {
    background-color: #ffffff;
    border: 1px solid var(--uv-border);
    border-radius: var(--uv-radius);
    padding: 1.5rem;
    box-shadow: var(--uv-shadow-xs);
}

/* ==========================================================================
   Tablas y DataTables Minimalistas
   ========================================================================== */
table.dataTable,
.table {
    border-collapse: separate !important;
    border-spacing: 0 !important;
    width: 100% !important;
    margin-top: 1rem !important;
    margin-bottom: 1rem !important;
    border: 1px solid var(--uv-border) !important;
    border-radius: var(--uv-radius) !important;
    overflow: hidden;
}

table.dataTable thead th,
.table thead th {
    background-color: var(--uv-blue) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    padding: 11px 14px !important;
    border: none !important;
    font-size: 0.86rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    vertical-align: middle !important;
}

table.dataTable tbody tr,
.table tbody tr {
    background-color: #ffffff;
    transition: background-color 0.15s ease;
}

table.dataTable tbody tr:hover,
.table tbody tr:hover {
    background-color: var(--uv-blue-tint) !important;
}

table.dataTable tbody td,
.table tbody td {
    padding: 10px 14px !important;
    vertical-align: middle !important;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--uv-border) !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
}

table.dataTable tbody tr:last-child td,
.table tbody tr:last-child td {
    border-bottom: none !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: var(--uv-blue) !important;
    color: #ffffff !important;
    border: 1px solid var(--uv-blue) !important;
    border-radius: var(--uv-radius-sm) !important;
    font-weight: 600;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: var(--uv-radius-sm) !important;
    padding: 4px 10px !important;
    font-size: 0.85rem !important;
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    border: 1px solid var(--uv-border) !important;
    border-radius: var(--uv-radius-sm) !important;
    padding: 4px 8px;
    font-size: 0.85rem;
}

/* ==========================================================================
   Badges y Etiquetas de Estado
   ========================================================================== */
.badge-uv-success {
    background-color: var(--uv-green-tint) !important;
    color: var(--uv-green-dark) !important;
    border: 1px solid var(--uv-green-border);
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: var(--uv-radius-pill);
    font-size: 0.8rem;
}

.badge-uv-info {
    background-color: var(--uv-blue-tint) !important;
    color: var(--uv-blue) !important;
    border: 1px solid var(--uv-blue-border);
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: var(--uv-radius-pill);
    font-size: 0.8rem;
}

.badge-uv-warning {
    background-color: var(--uv-warning-tint) !important;
    color: var(--uv-warning) !important;
    border: 1px solid var(--uv-warning-border);
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: var(--uv-radius-pill);
    font-size: 0.8rem;
}

.badge-uv-danger {
    background-color: var(--uv-danger-tint) !important;
    color: var(--uv-danger) !important;
    border: 1px solid var(--uv-danger-border);
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: var(--uv-radius-pill);
    font-size: 0.8rem;
}

/* ==========================================================================
   Modales Minimalistas
   ========================================================================== */
.modal-content {
    border: 1px solid var(--uv-border) !important;
    border-radius: var(--uv-radius-lg) !important;
    box-shadow: var(--uv-shadow-lg) !important;
    overflow: hidden;
}

.modal-header {
    background-color: var(--uv-blue);
    color: #ffffff;
    border-bottom: none !important;
    padding: 1rem 1.5rem;
}

.modal-header .modal-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: #ffffff;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

.modal-footer {
    border-top: 1px solid var(--uv-border) !important;
    padding: 0.75rem 1.5rem;
    background-color: var(--uv-bg);
}

/* ==========================================================================
   Utilidades Globales
   ========================================================================== */
.w-10 { width: 10% !important; }
.w-15 { width: 15% !important; }
.w-20 { width: 20% !important; }
.w-25 { width: 25% !important; }
.w-30 { width: 30% !important; }
.w-35 { width: 35% !important; }
.w-40 { width: 40% !important; }
.w-50 { width: 50% !important; }

.text-uv-blue { color: var(--uv-blue) !important; }
.text-uv-green { color: var(--uv-green) !important; }
.bg-uv-blue { background-color: var(--uv-blue) !important; }
.bg-uv-green { background-color: var(--uv-green) !important; }
.bg-uv-tint { background-color: var(--uv-blue-tint) !important; }

.oculto, .d-none { display: none !important; }
.error, .msjError { color: var(--uv-danger); font-size: 0.82rem; font-weight: 500; }

.custom-file-label::after {
    content: "Examinar..." !important;
}

#msjError {
    padding-left: 10px;
    color: var(--uv-danger);
    border-left: 4px solid var(--uv-danger);
    font-weight: 500;
}

.doc_obligatorio {
    color: var(--uv-danger) !important;
    font-weight: 700;
    font-size: 1.1em;
}

/* ==========================================================================
   Vista Información de Alumno y Visualizador de Documentos
   ========================================================================== */
.student-profile-card {
    background: #ffffff;
    border: 1px solid var(--uv-border);
    border-radius: var(--uv-radius-lg);
    box-shadow: var(--uv-shadow-sm);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

.student-photo-box {
    width: 120px;
    height: 145px;
    border-radius: var(--uv-radius);
    overflow: hidden;
    border: 2px solid var(--uv-blue-border);
    background: var(--uv-blue-tint);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: var(--uv-shadow-xs);
    flex-shrink: 0;
}

.student-photo-box img,
.student-photo-box embed {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.student-photo-action {
    margin-top: 0.5rem;
    width: 120px;
}

.student-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem 1.25rem;
    flex-grow: 1;
}

.student-info-item {
    display: flex;
    flex-direction: column;
}

.student-info-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--uv-text-muted);
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.student-info-val {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--uv-text-main);
    line-height: 1.3;
    word-break: break-word;
}

.doc-nav-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: #ffffff;
    border: 1px solid var(--uv-border);
    border-radius: var(--uv-radius);
    box-shadow: var(--uv-shadow-xs);
}

.btnPaneles {
    flex: 1 1 auto;
    min-width: 140px;
    padding: 0.6rem 0.75rem !important;
    font-size: 0.82rem !important;
    font-weight: 600 !important;
    border-radius: var(--uv-radius-sm) !important;
    border: 1px solid var(--uv-border) !important;
    background-color: var(--uv-bg) !important;
    color: var(--uv-text-main) !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: var(--uv-transition) !important;
    text-align: center;
    position: relative;
}

.btnPaneles:hover {
    background-color: var(--uv-blue-tint) !important;
    border-color: var(--uv-blue-border) !important;
    color: var(--uv-blue) !important;
}

.btnPaneles.active {
    background-color: #ffffff !important;
    border-color: var(--uv-blue) !important;
    color: var(--uv-blue) !important;
    box-shadow: 0 0 0 2px rgba(0, 51, 102, 0.15) !important;
}

.btnPaneles .badge-doc-status {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: var(--uv-radius-pill);
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.doc-viewer-card {
    background: #ffffff;
    border: 1px solid var(--uv-border);
    border-radius: var(--uv-radius-lg);
    box-shadow: var(--uv-shadow-sm);
    overflow: hidden;
}

.doc-viewer-header {
    background: #ffffff;
    border-bottom: 1px solid var(--uv-border);
    padding: 0.75rem 1.25rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.doc-viewer-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--uv-blue);
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.doc-viewer-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.doc-embed-container {
    width: 100%;
    height: 75vh;
    min-height: 600px;
    background: #525659;
}

.doc-embed-container embed,
.doc-embed-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.doc-empty-state {
    padding: 4rem 2rem;
    text-align: center;
    background: #ffffff;
}

/* ==========================================================================
   Media Queries Responsivas
   ========================================================================== */
@media (max-width: 991.98px) {
    .admin-sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        margin-left: -260px;
    }
    .admin-sidebar.collapsed {
        margin-left: 0;
    }
    #panel-izq { display: none !important; }
    #panel-der { min-height: 100vh !important; }
}