/**
 * =============================================================================
 * API BI Gestión Automotriz - Estilos Principales
 * =============================================================================
 * Estilos base, variables CSS, layout y componentes comunes.
 * Diseño basado en las imágenes de referencia DASHBOARD.JPG
 * =============================================================================
 */

/* =============================================================================
   VARIABLES CSS
   ============================================================================= */
:root {
    /* Colores principales */
    --color-primary: #1e3a5f;
    --color-primary-light: #2c5282;
    --color-primary-dark: #152a47;
    --color-secondary: #4a90d9;
    
    /* Colores de estado */
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --color-info: #17a2b8;
    
    /* Colores neutros */
    --color-white: #ffffff;
    --color-light: #f8f9fa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-dark: #212529;
    
    /* Tipografía */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Bordes */
    --border-radius-sm: 0.25rem;
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 1rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Layout */
    --sidebar-width: 250px;
    --header-height: 60px;
    --content-max-width: 1600px;
}

/* =============================================================================
   RESET Y BASE
   ============================================================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-dark);
    background-color: var(--color-gray-100);
    min-height: 100vh;
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary);
}

img {
    max-width: 100%;
    height: auto;
}

/* =============================================================================
   LAYOUT PRINCIPAL
   ============================================================================= */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: transform var(--transition-base);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.sidebar-logo {
    max-width: 180px;
    margin-bottom: var(--spacing-sm);
}

.sidebar-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.sidebar-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* Navegación del sidebar */
.sidebar-nav {
    padding: var(--spacing-md) 0;
}

.nav-section {
    margin-bottom: var(--spacing-md);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-sm) var(--spacing-lg);
    opacity: 0.6;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-fast);
    cursor: pointer;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.nav-item.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    border-left-color: var(--color-warning);
}

.nav-item-icon {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-sm);
    opacity: 0.8;
}

.nav-item-text {
    font-size: var(--font-size-sm);
}

/* Contenido principal */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    height: var(--header-height);
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Menú de usuario */
.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.user-menu:hover {
    background-color: var(--color-gray-100);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-dark);
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
}

/* Área de contenido */
.content-area {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: var(--content-max-width);
    width: 100%;
    margin: 0 auto;
}

/* =============================================================================
   COMPONENTES - TARJETAS
   ============================================================================= */
.card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 600;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-header-actions {
    display: flex;
    gap: var(--spacing-xs);
}

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

.card-footer {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-gray-100);
    border-top: 1px solid var(--color-gray-200);
}

/* =============================================================================
   COMPONENTES - TABLAS
   ============================================================================= */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.table th,
.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.table th {
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 600;
    white-space: nowrap;
}

.table tbody tr:nth-child(even) {
    background-color: var(--color-gray-100);
}

.table tbody tr:hover {
    background-color: var(--color-gray-200);
}

.table-numeric {
    text-align: right;
    font-family: 'Consolas', 'Monaco', monospace;
}

.table-total {
    font-weight: 700;
    background-color: var(--color-primary-light) !important;
    color: var(--color-white);
}

/* Tabla estilo dashboard */
.dashboard-table {
    font-size: var(--font-size-xs);
}

.dashboard-table th {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.dashboard-table td {
    padding: var(--spacing-xs) var(--spacing-sm);
}

.dashboard-table .cell-icon {
    width: 20px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.dashboard-table .cell-icon:hover {
    opacity: 1;
}

/* =============================================================================
   COMPONENTES - BOTONES
   ============================================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
}

.btn-secondary {
    background-color: var(--color-gray-200);
    color: var(--color-dark);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-gray-300);
}

.btn-success {
    background-color: var(--color-success);
    color: var(--color-white);
}

.btn-success:hover:not(:disabled) {
    background-color: #218838;
}

.btn-danger {
    background-color: var(--color-danger);
    color: var(--color-white);
}

.btn-danger:hover:not(:disabled) {
    background-color: #c82333;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-icon {
    padding: var(--spacing-sm);
    min-width: 36px;
}

/* =============================================================================
   COMPONENTES - FORMULARIOS
   ============================================================================= */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-xs);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.form-control:disabled {
    background-color: var(--color-gray-100);
    cursor: not-allowed;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236c757d' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: var(--spacing-xl);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    margin-top: var(--spacing-xs);
}

/* Filtros inline */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    white-space: nowrap;
}

.filter-control {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-sm);
    min-width: 150px;
}

/* =============================================================================
   COMPONENTES - KPI CARDS
   ============================================================================= */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.kpi-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--color-primary);
}

.kpi-card.success {
    border-left-color: var(--color-success);
}

.kpi-card.warning {
    border-left-color: var(--color-warning);
}

.kpi-card.danger {
    border-left-color: var(--color-danger);
}

.kpi-card.info {
    border-left-color: var(--color-info);
}

.kpi-label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.kpi-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.2;
}

.kpi-change {
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
}

.kpi-change.positive {
    color: var(--color-success);
}

.kpi-change.negative {
    color: var(--color-danger);
}

/* =============================================================================
   COMPONENTES - BADGES Y TAGS
   ============================================================================= */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: 9999px;
}

.badge-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.badge-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--color-success);
}

.badge-warning {
    background-color: rgba(255, 193, 7, 0.1);
    color: #856404;
}

.badge-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--color-danger);
}

/* =============================================================================
   COMPONENTES - TOAST NOTIFICATIONS
   ============================================================================= */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 300px;
    max-width: 400px;
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    opacity: 0;
    transition: all var(--transition-slow);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.toast-success {
    border-left: 4px solid var(--color-success);
}

.toast-error {
    border-left: 4px solid var(--color-danger);
}

.toast-warning {
    border-left: 4px solid var(--color-warning);
}

.toast-info {
    border-left: 4px solid var(--color-info);
}

.toast-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--color-gray-500);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

/* =============================================================================
   COMPONENTES - LOADING
   ============================================================================= */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-message {
    margin-top: var(--spacing-md);
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

/* =============================================================================
   COMPONENTES - MODAL
   ============================================================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.modal-dialog {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-gray-500);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

/* =============================================================================
   COMPONENTES - PAGINACIÓN
   ============================================================================= */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
}

.pagination-btn {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-gray-300);
    background-color: var(--color-white);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--color-gray-100);
    border-color: var(--color-primary);
}

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

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-ellipsis {
    padding: 0 var(--spacing-sm);
    color: var(--color-gray-500);
}

/* =============================================================================
   RESPONSIVE
   ============================================================================= */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 200px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header {
        padding: 0 var(--spacing-md);
    }
    
    .content-area {
        padding: var(--spacing-md);
    }
    
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filters-bar {
        flex-direction: column;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-control {
        flex: 1;
    }
    
    .user-info {
        display: none;
    }
}

@media (max-width: 480px) {
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: var(--font-size-xs);
    }
    
    .table th,
    .table td {
        padding: var(--spacing-xs);
    }
}

/* =============================================================================
   UTILIDADES
   ============================================================================= */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger { color: var(--color-danger); }
.text-muted { color: var(--color-gray-600); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-wrap { flex-wrap: wrap; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }


/* =============================================================================
   RESPONSIVE BREAKPOINTS
   ============================================================================= */

/* Tablet */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
        z-index: 1000;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-section.full-width {
        grid-column: span 1;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 100%;
    }
    
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .header-title {
        font-size: var(--font-size-base);
    }
    
    .content-area {
        padding: var(--spacing-md);
    }
    
    .dashboard-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-item {
        width: 100%;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .dashboard-table th,
    .dashboard-table td {
        padding: var(--spacing-xs);
        font-size: var(--font-size-xs);
    }
    
    .section-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .section-title {
        font-size: var(--font-size-sm);
    }
    
    .user-info {
        display: none;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .header-left {
        gap: var(--spacing-xs);
    }
    
    .header-title {
        font-size: var(--font-size-sm);
    }
    
    .btn-sm {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
    
    .dashboard-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .objetivos-container {
        grid-template-columns: 1fr;
    }
    
    .problemas-grid {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .header,
    .dashboard-filters,
    .btn {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .content-area {
        padding: 0;
    }
    
    .dashboard-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* =============================================================================
   OVERLAY PARA SIDEBAR EN MÓVIL
   ============================================================================= */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.sidebar.open + .sidebar-overlay {
    display: block;
}

/* =============================================================================
   LOADING SPINNER
   ============================================================================= */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-message {
    text-align: center;
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

.loading-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}