/* ===================================
   SISTEMA DE TRAZABILIDAD PAP - ESTILOS PRINCIPALES
   Framework: Bootstrap 5 + Estilos Personalizados
   =================================== */

/* ===================================
   VARIABLES CSS PERSONALIZADAS
   =================================== */
:root {
    /* Paleta de colores principal */
    --primary-color: #0d6efd;
    --primary-dark: #0a58ca;
    --primary-light: #6ea8fe;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    
    /* Colores de trazabilidad médica */
    --medical-primary: #2c5aa0;
    --medical-secondary: #4a90a4;
    --medical-accent: #50c878;
    --medical-warning: #ff8c42;
    --medical-danger: #e74c3c;
    
    /* Estados de procedimientos */
    --estado-pendiente: #ffc107;
    --estado-procesando: #fd7e14;
    --estado-completado: #198754;
    --estado-enviado: #0dcaf0;
    
    /* Colores de fondo y superficies */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --surface-elevated: #ffffff;
    
    /* Colores de texto */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --text-inverse: #ffffff;
    
    /* Espaciado consistente */
    --spacing-xs: 0.25rem;    /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-xxl: 3rem;      /* 48px */
    
    /* Bordes y radio */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-width: 1px;
    --border-color: #dee2e6;
    
    /* Sombras modernas */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --shadow-hover: 0 0.75rem 2rem rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Tema oscuro */
[data-theme="dark"] {
    --bg-primary: #1a1d23;
    --bg-secondary: #25282e;
    --bg-tertiary: #2f3349;
    --surface-elevated: #343a46;
    
    --text-primary: #ffffff;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    --text-inverse: #212529;
    
    --border-color: #495057;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.5);
}

/* ===================================
   ESTILOS GLOBALES
   =================================== */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    transition: color var(--transition-normal), background-color var(--transition-normal);
}

/* ===================================
   TIPOGRAFÍA MEJORADA
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.text-medical-primary { color: var(--medical-primary) !important; }
.text-medical-secondary { color: var(--medical-secondary) !important; }
.text-medical-accent { color: var(--medical-accent) !important; }

/* ===================================
   COMPONENTES PERSONALIZADOS
   =================================== */

/* Tarjetas mejoradas */
.card {
    background-color: var(--surface-elevated);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-normal), transform var(--transition-fast);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.card-header {
    background-color: var(--bg-secondary);
    border-bottom: var(--border-width) solid var(--border-color);
    padding: var(--spacing-lg);
    font-weight: 600;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    background-color: var(--bg-secondary);
    border-top: var(--border-width) solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
}

/* Botones mejorados */
.btn {
    font-weight: 500;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn-medical-primary {
    background-color: var(--medical-primary);
    border-color: var(--medical-primary);
    color: white;
}

.btn-medical-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* Navegación mejorada */
.navbar {
    background-color: var(--surface-elevated) !important;
    box-shadow: var(--shadow-md);
    border-bottom: var(--border-width) solid var(--border-color);
}

.navbar-brand {
    font-weight: 700;
    color: var(--medical-primary) !important;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--medical-primary) !important;
}

/* Formularios mejorados */
.form-control {
    border-radius: var(--border-radius-md);
    border: var(--border-width) solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    border-color: var(--medical-primary);
    box-shadow: 0 0 0 0.2rem rgba(44, 90, 160, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

/* Tablas mejoradas */
.table {
    background-color: var(--surface-elevated);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead th {
    background-color: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background-color: var(--bg-secondary);
}

/* Badges mejorados */
.badge {
    font-weight: 500;
    border-radius: var(--border-radius-xl);
    padding: 0.5em 0.75em;
    font-size: 0.75rem;
}

.badge-estado-pendiente {
    background-color: var(--estado-pendiente);
    color: #000;
}

.badge-estado-procesando {
    background-color: var(--estado-procesando);
    color: #fff;
}

.badge-estado-completado {
    background-color: var(--estado-completado);
    color: #fff;
}

.badge-estado-enviado {
    background-color: var(--estado-enviado);
    color: #000;
}

/* Toggle de tema */
#toggle-darkmode {
    border-radius: 50% !important;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

#toggle-darkmode:hover {
    transform: rotate(180deg) scale(1.1);
}

[data-theme="dark"] #toggle-darkmode {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    color: #000;
}

[data-theme="light"] #toggle-darkmode {
    background-color: var(--info-color);
    border-color: var(--info-color);
    color: #fff;
}

/* Utilidades */
.shadow-custom {
    box-shadow: var(--shadow-md) !important;
}

.rounded-custom {
    border-radius: var(--border-radius-lg) !important;
}

.bg-medical-primary {
    background-color: var(--medical-primary) !important;
}

.estado-pendiente {
    color: var(--estado-pendiente) !important;
}

.estado-procesando {
    color: var(--estado-procesando) !important;
}

.estado-completado {
    color: var(--estado-completado) !important;
}

.estado-enviado {
    color: var(--estado-enviado) !important;
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .card-body {
        padding: var(--spacing-md);
    }
}

[data-theme="dark"] .label {
    color: var(--text-color);
}

[data-theme="dark"] .select:not(.is-multiple):not(.is-loading)::after {
    border-color: var(--text-secondary);
}

[data-theme="dark"] .select select:focus,
[data-theme="dark"] .input:focus,
[data-theme="dark"] .textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.125em rgba(50, 115, 220, 0.25);
}

/* Estilos para tablas en modo oscuro */
[data-theme="dark"] table,
[data-theme="dark"] .table {
    background-color: var(--bg-color);
    color: var(--text-color);
}

[data-theme="dark"] table th,
[data-theme="dark"] .table th {
    color: var(--text-secondary);
}

[data-theme="dark"] table td,
[data-theme="dark"] .table td,
[data-theme="dark"] table th,
[data-theme="dark"] .table th {
    border-color: var(--border-color);
}

/* Estilos para modales en modo oscuro */
[data-theme="dark"] .modal-card-head,
[data-theme="dark"] .modal-card-foot {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .modal-card-title {
    color: var(--text-color);
}

[data-theme="dark"] .modal-card-body {
    background-color: var(--bg-color);
    color: var(--text-color);
}

[data-theme="dark"] .modal-close {
    background-color: rgba(0, 0, 0, 0.2);
}

/* Estilos para menús desplegables en modo oscuro */
[data-theme="dark"] .dropdown-content {
    background-color: var(--bg-color);
    border-color: var(--border-color);
    box-shadow: var(--box-shadow);
}

[data-theme="dark"] .dropdown-item {
    color: var(--text-color);
}

[data-theme="dark"] .dropdown-item:hover {
    background-color: var(--bg-secondary);
    color: var(--text-color);
}

[data-theme="dark"] .dropdown-divider {
    background-color: var(--border-color);
}

/* Transiciones suaves para cambios de tema */
*, *::before, *::after {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Estilos para Select2 en modo oscuro */
[data-theme="dark"] .select2-container--default .select2-selection--single,
[data-theme="dark"] .select2-container--default .select2-selection--multiple {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--text-color);
}

[data-theme="dark"] .select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: var(--text-secondary) transparent transparent transparent;
}

[data-theme="dark"] .select2-dropdown {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}

[data-theme="dark"] .select2-container--default .select2-search--dropdown .select2-search__field {
    background-color: var(--bg-color);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .select2-container--default .select2-results__option {
    color: var(--text-color);
}

[data-theme="dark"] .select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--primary-color);
    color: #fff;
}

[data-theme="dark"] .select2-container--default .select2-results__option[aria-selected=true] {
    background-color: rgba(50, 115, 220, 0.2);
}

/* ===================================
   COMPONENTES PERSONALIZADOS
   =================================== */

/* Header del sistema */
.app-header {
  background: linear-gradient(135deg, var(--primary-color), var(--info-color));
  box-shadow: var(--box-shadow);
}

.app-header .navbar-brand .navbar-item {
  color: white !important;
  font-weight: bold;
  font-size: 1.25rem;
}

.app-header .navbar-menu .navbar-item {
  color: rgba(255, 255, 255, 0.9) !important;
}

.app-header .navbar-menu .navbar-item:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
  color: white !important;
}

.navbar-item, .navbar-link {
  color: var(--text-color);
}

.navbar-dropdown {
  background-color: var(--bg-color);
  border-color: var(--border-color);
  box-shadow: var(--box-shadow);
}

.navbar-divider {
  background-color: var(--border-color);
}

/* Estilos específicos para el dropdown del navbar */
.navbar-item.has-dropdown:hover .navbar-dropdown,
.navbar-item.has-dropdown.is-active .navbar-dropdown {
  display: block;
}

.navbar-dropdown .navbar-item {
  color: var(--text-color);
  background-color: transparent;
}

.navbar-dropdown .navbar-item:hover {
  background-color: var(--bg-secondary);
  color: var(--text-color);
}

/* Estilos para el contenido principal */
.content-area {
  position: relative;
  z-index: 2;
}

/* Estilos para títulos y headers */
.title, .subtitle {
  position: relative;
  z-index: 3;
}

.level {
  position: relative;
  z-index: 3;
}

/* Breadcrumbs */
.breadcrumb {
  position: relative;
  z-index: 3;
}
.app-sidebar {
  background-color: var(--bg-color);
  box-shadow: var(--box-shadow);
  min-height: calc(100vh - 3.25rem);
  border-right: 1px solid var(--border-color);
  width: 250px;
  position: relative;
  z-index: 1;
  transition: all 0.3s;
  overflow-y: auto;
}

.sidebar-menu .menu-label {
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.sidebar-menu .menu-list a {
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-xs);
  transition: all 0.3s ease;
  color: var(--text-color);
}

.sidebar-menu .menu-list a:hover {
  background-color: var(--bg-secondary);
  color: var(--primary-color);
}

.sidebar-menu .menu-list a.is-active {
  background-color: var(--primary-color);
  color: white;
}

/* Tarjetas de contenido */
.content-card {
  background-color: var(--bg-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

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

.content-card .card-header {
  background-color: var(--bg-secondary);
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.content-card .card-header-title {
  font-weight: 600;
  color: var(--text-color);
}

.content-card .card-content {
  padding: var(--spacing-md);
  color: var(--text-color);
}

/* Componentes de trazabilidad */
.trace-timeline {
  position: relative;
  padding-left: 2rem;
}

.trace-timeline::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--primary-color);
}

.trace-step {
  position: relative;
  margin-bottom: var(--spacing-lg);
  background: var(--bg-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  color: var(--text-color);
}

.trace-step::before {
  content: '';
  position: absolute;
  left: -1.75rem;
  top: 1rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--primary-color);
  border: 3px solid var(--bg-color);
  box-shadow: 0 0 0 2px var(--primary-color);
}

.trace-step.is-success::before {
  background-color: var(--trace-success);
  box-shadow: 0 0 0 2px var(--trace-success);
}

.trace-step.is-warning::before {
  background-color: var(--trace-warning);
  box-shadow: 0 0 0 2px var(--trace-warning);
}

.trace-step.is-danger::before {
  background-color: var(--trace-danger);
  box-shadow: 0 0 0 2px var(--trace-danger);
}

/* Estados de productos */
.product-status {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.product-status.is-active {
  background-color: rgba(72, 199, 116, 0.15);
  color: var(--trace-success);
}

.product-status.is-pending {
  background-color: rgba(255, 221, 87, 0.15);
  color: var(--warning-color);
}

.product-status.is-inactive {
  background-color: rgba(241, 70, 104, 0.15);
  color: var(--trace-danger);
}

/* Tablas responsivas */
.table-container {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  overflow: hidden;
}

.table-container .table {
  margin-bottom: 0;
}

.table-container .table thead th {
  background-color: var(--light-color);
  color: var(--dark-color);
  font-weight: 600;
  border-bottom: 2px solid #dbdbdb;
}

/* Formularios */
.form-section {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.form-section .title {
  color: var(--dark-color);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--light-color);
}

/* Botones personalizados */
.button.is-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.button.is-primary:hover {
  background-color: #2366d1;
  border-color: #2366d1;
}

/* Dashboard widgets */
.dashboard-widget {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: var(--spacing-lg);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dashboard-widget:hover {
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-hover);
}

.dashboard-widget .widget-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.dashboard-widget .widget-title {
  font-size: 0.875rem;
  color: #7a7a7a;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-xs);
}

.dashboard-widget .widget-value {
  font-size: 2rem;
  font-weight: bold;
  color: var(--dark-color);
}

/* Alertas y notificaciones */
.notification.is-trace-info {
  background-color: rgba(50, 152, 220, 0.1);
  color: var(--trace-info);
  border-left: 4px solid var(--trace-info);
}

.notification.is-trace-success {
  background-color: rgba(72, 199, 116, 0.1);
  color: var(--trace-success);
  border-left: 4px solid var(--trace-success);
}

.notification.is-trace-warning {
  background-color: rgba(255, 221, 87, 0.1);
  color: #947600;
  border-left: 4px solid var(--trace-warning);
}

.notification.is-trace-danger {
  background-color: rgba(241, 70, 104, 0.1);
  color: var(--trace-danger);
  border-left: 4px solid var(--trace-danger);
}

/* ===================================
   UTILIDADES RESPONSIVAS
   =================================== */
@media screen and (max-width: 768px) {
  .app-sidebar {
    display: none;
  }
  
  .dashboard-widget {
    margin-bottom: var(--spacing-md);
  }
  
  .trace-timeline {
    padding-left: 1.5rem;
  }
  
  .trace-step::before {
    left: -1.25rem;
  }
}

/* ===================================
   ANIMACIONES
   =================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

.slide-in {
  animation: slideIn 0.3s ease-out;
}

/* ===================================
   FORMULARIOS - CHECKBOXES PERSONALIZADOS
   =================================== */
.form-check-custom {
  padding-left: 0;
  margin-bottom: 1rem;
  position: relative;
}

.form-check-custom .form-check-input {
  width: 1.4rem;
  height: 1.4rem;
  margin-right: 0.75rem;
  border: 2px solid var(--medical-primary);
  border-radius: 0.375rem;
  background-color: #ffffff;
  cursor: pointer;
  float: left;
  margin-top: 0.125rem;
  transition: all 0.3s ease-in-out;
  position: relative;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.form-check-custom .form-check-input:checked {
  background-color: var(--medical-primary) !important;
  border-color: var(--medical-primary) !important;
  background-image: none;
}

.form-check-custom .form-check-input:checked::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 1rem;
  font-weight: bold;
  line-height: 1;
}

.form-check-custom .form-check-input:focus {
  border-color: var(--medical-primary);
  box-shadow: 0 0 0 0.25rem rgba(44, 90, 160, 0.25);
  outline: none;
}

.form-check-custom .form-check-input:hover {
  border-color: var(--medical-secondary);
  background-color: rgba(44, 90, 160, 0.05);
}

.form-check-custom .form-check-label {
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
  margin-left: 2.2rem;
  line-height: 1.5;
  user-select: none;
  transition: color 0.2s ease-in-out;
  display: block;
  min-height: 1.4rem;
  padding-top: 0.125rem;
}

.form-check-custom .form-check-label:hover {
  color: var(--medical-primary);
}

.form-check-custom.checked .form-check-label {
  color: var(--medical-primary);
  font-weight: 600;
}

/* Estados adicionales para mejor UX */
.form-check-custom .form-check-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-check-custom .form-check-input:disabled ~ .form-check-label {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Alternativa con borde más grueso cuando está marcado */
.form-check-custom .form-check-input:checked {
  border-width: 3px;
  box-shadow: 0 0 10px rgba(44, 90, 160, 0.3);
}

/* Efecto de escala al hacer click */
.form-check-custom .form-check-input:active {
  transform: scale(0.95);
}

/* Debugging - colores más contrastantes */
.form-check-custom .form-check-input {
  background-color: #fff !important;
  border: 3px solid #2c5aa0 !important;
}

.form-check-custom .form-check-input:checked {
  background-color: #fff !important;
  border-color: #2c5aa0 !important;
}

/* Estilo alternativo más visible */
.form-check-custom.checked .form-check-input {
  background-color: #fff !important;
  border-color: #2c5aa0 !important;
  box-shadow: 0 0 10px rgba(44, 90, 160, 0.3) !important;
}

/* Punto azul sólido para checkbox */
.form-check-custom .form-check-input:checked::before {
  content: "" !important;
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
  width: 8px !important;
  height: 8px !important;
  background-color: #2c5aa0 !important;
  border-radius: 50% !important;
  z-index: 1 !important;
}

/* ===================================
   MODO OSCURO (OPCIONAL)
   =================================== */
@media (prefers-color-scheme: dark) {
  :root {
    --light-color: #2b2b2b;
    --dark-color: #f5f5f5;
  }
  
  body {
    background-color: #1a1a1a;
    color: var(--dark-color);
  }
  
  .content-card,
  .form-section,
  .dashboard-widget,
  .table-container {
    background-color: #2b2b2b;
    color: var(--dark-color);
  }
  
  .form-check-custom .form-check-input {
    border-color: var(--dark-color);
  }
  
  .form-check-custom .form-check-label {
    color: var(--dark-color);
  }
}