/* Variables */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --sidebar-width: 250px;
    --header-height: 60px;
    --border-radius: 0.375rem;
    --transition-speed: 0.3s;
}

/* Reset y Estilos Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--dark-color);
    background-color: #f5f5f5;
}

/* Layout Principal */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--dark-color);
    color: white;
    position: fixed;
    height: 100vh;
    transition: transform var(--transition-speed);
    z-index: 1000;
}

.sidebar-header {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
}

.brand-icon {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.sidebar-brand h1 {
    font-size: 1.25rem;
    margin: 0;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    padding: 0 1rem;
    margin-bottom: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: background-color var(--transition-speed);
}

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

.nav-item.active {
    background-color: var(--primary-color);
    color: white;
}

.nav-icon {
    font-size: 1.25rem;
    margin-right: 0.75rem;
}

/* Contenido Principal */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background-color: #f5f5f5;
}

/* Header */
.main-header {
    height: var(--header-height);
    background-color: white;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-search {
    flex: 1;
    max-width: 400px;
}

.search-container {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary-color);
}

.header-search input {
    width: 100%;
    padding: 0.5rem 0.75rem 0.5rem 2.5rem;
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-button {
    background: none;
    border: none;
    color: var(--secondary-color);
    font-size: 1.25rem;
    position: relative;
    padding: 0.25rem;
}

.notification-badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: var(--danger-color);
    color: white;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 1rem;
    transform: translate(50%, -50%);
}

.user-menu-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

.user-avatar {
    width: 2rem;
    height: 2rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 500;
}

.user-name {
    font-size: 0.875rem;
    color: var(--dark-color);
}

/* Contenido */
.content {
    padding: 1.5rem;
}

.page-header {
    margin-bottom: 1.5rem;
}

.page-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.page-subtitle {
    color: var(--secondary-color);
    font-size: 0.875rem;
}

/* Cards y Grids */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.stat-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stat-content h3 {
    font-size: 1rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stat-change {
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

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

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

/* Gráficos */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.chart-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.chart-header h3 {
    font-size: 1rem;
    margin: 0;
}

.chart-container {
    height: 300px;
}

/* Tablas */
.table-section {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.table-header h3 {
    font-size: 1rem;
    margin: 0;
}

.table-actions {
    display: flex;
    gap: 0.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    text-align: left;
    padding: 0.75rem;
    border-bottom: 2px solid #dee2e6;
}

.data-table td {
    padding: 0.75rem;
    border-bottom: 1px solid #dee2e6;
}

/* Formularios */
.form-container {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.form-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Modales */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    padding: 1rem 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    padding: 1rem 1.5rem;
}

/* Página de Login */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f5f5f5;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}

.login-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header .brand {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.login-header .brand-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.login-header h1 {
    font-size: 1.5rem;
    margin: 0;
}

.welcome-text {
    color: var(--secondary-color);
    font-size: 0.875rem;
}

.login-form {
    margin-bottom: 1.5rem;
}

.login-footer {
    text-align: center;
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
}

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

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }
}

/* Utilidades */
.text-muted {
    color: var(--secondary-color) !important;
}

.text-success {
    color: var(--success-color) !important;
}

.text-danger {
    color: var(--danger-color) !important;
}

.text-warning {
    color: var(--warning-color) !important;
}

.text-info {
    color: var(--info-color) !important;
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-1rem);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn var(--transition-speed);
}

.slide-in {
    animation: slideIn var(--transition-speed);
}

/* Accesibilidad */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Estados de Carga */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Tooltips */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem;
    background-color: var(--dark-color);
    color: white;
    font-size: 0.875rem;
    border-radius: var(--border-radius);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
}

[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Controles de Reportes */
.report-controls {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.control-group {
    flex: 1;
}

/* Botones de Icono */
.icon-button {
    background: none;
    border: none;
    padding: 0.5rem;
    color: var(--secondary-color);
    cursor: pointer;
    transition: color var(--transition-speed);
}

.icon-button:hover {
    color: var(--primary-color);
}

/* Configuración */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.settings-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.settings-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.settings-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.settings-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

/* Actividad Reciente */
.activity-section {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-header h3 {
    font-size: 1rem;
    margin: 0;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: #f8f9fa;
}

.activity-icon {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.activity-content {
    flex: 1;
}

.activity-content p {
    margin: 0;
    margin-bottom: 0.25rem;
}

.activity-time {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

/* Filtros */
.filters-section {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

/* Reportes */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.report-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    text-align: center;
}

.report-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.report-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.report-card p {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.report-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

/* Impresión */
@media print {
    .sidebar,
    .main-header,
    .toolbar,
    .table-actions {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }

    .table-section {
        box-shadow: none !important;
        padding: 0 !important;
    }

    .data-table th {
        background-color: #f8f9fa !important;
        -webkit-print-color-adjust: exact;
    }
}