:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;

    --ambiente-sandbox: #ffc107;
    --ambiente-produccion: #198754;

    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f2f5fa;
    --bg-tertiary: #e4e9f2;
    --text-primary: #020202;
    --text-secondary: #475467;
    --border-color: #d0d5dd;
    --shadow: rgba(15, 23, 42, 0.12);
    --shadow-hover: rgba(15, 23, 42, 0.18);
    --navbar-bg: #cacbcd;
    --navbar-text: #0b0b0b;
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --bg-primary: #1a1d23;
    --bg-secondary: #22252b;
    --bg-tertiary: #2a2d35;
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --border-color: #3a3d45;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.5);

    --primary-color: #4d94ff;
    --success-color: #28a745;
    --danger-color: #e74c3c;
    --navbar-bg: #111827;
    --navbar-text: #f8fafc;
}

body[data-theme="dark"] .navbar-dark {
    background-color: var(--navbar-bg) !important;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navbar */
.navbar-brand {
    font-weight: 600;
    font-size: 1.3rem;
}

.navbar {
    background-color: var(--navbar-bg) !important;
    border-bottom: 1px solid rgba(15, 23, 42, 0.4);
    color: var(--navbar-text);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.25);
}

.navbar-dark .navbar-brand,
.navbar-dark .nav-link,
.navbar-dark .dropdown-item,
.navbar-dark .dropdown-header,
.navbar .nav-link,
.navbar .dropdown-item,
.navbar .dropdown-header {
    color: var(--navbar-text) !important;
}

.navbar .dropdown-menu {
    background-color: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.35);
}

.navbar .dropdown-item {
    color: #f6ffff !important;
}

.navbar .nav-link.active,
.navbar .nav-link:hover,
.navbar .dropdown-item:hover {
    color: #080808 !important;
}

.navbar .dropdown-item:hover {
    background-color: rgba(59, 130, 246, 0.2);
}

.ambiente-badge {
    position: relative;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.75rem;
    box-shadow: 0 2px 4px var(--shadow);
    margin-left: 1rem;
}

.ambiente-sandbox {
    background-color: var(--ambiente-sandbox);
    color: #000;
}

.ambiente-produccion {
    background-color: var(--ambiente-produccion);
    color: #fff;
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    margin-left: 1rem;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    transform: rotate(20deg);
}

/* Cards */
.card {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.card-header {
    background-color: var(--bg-tertiary);
    border-bottom: 2px solid rgba(15, 23, 42, 0.08);
    font-weight: 600;
    padding: 1rem 1.5rem;
    color: var(--text-primary);
}

/* Dashboard Stats */
.stat-card {
    text-align: center;
    padding: 1.5rem;
}

.stat-card .stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.stat-card .stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tables */
.table {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.table thead th {
    border-top: none;
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    background-color: var(--bg-tertiary);
}

.table tbody tr {
    border-bottom: 1px solid var(--border-color);
}

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

/* Badges de estado */
.badge-estado {
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.85rem;
}

.estado-pendiente {
    background-color: #ffc107;
    color: #000;
}

.estado-procesando {
    background-color: #0dcaf0;
    color: #000;
}

.estado-en_cola {
    background-color: #6c757d;
    color: #fff;
}

.estado-aceptado {
    background-color: #198754;
    color: #fff;
}

.estado-rechazado {
    background-color: #dc3545;
    color: #fff;
}

.estado-aceptado_parcial {
    background-color: #fd7e14;
    color: #fff;
}

.estado-error {
    background-color: #dc3545;
    color: #fff;
}

/* Buttons */
.btn {
    border-radius: 8px;
    padding: 0.5rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--shadow-hover);
}

.btn-action {
    padding: 0.3rem 0.7rem;
    font-size: 0.85rem;
    margin: 0 0.2rem;
}

/* Forms */
.form-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 0.6rem 0.9rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Detalle de factura */
#detalle-factura {
    margin-top: 2rem;
}

.detalle-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.detalle-item .btn-remove {
    position: absolute;
    top: 10px;
    right: 10px;
}

/* Totales de factura */
.totales-factura {
    background-color: var(--bg-tertiary);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    font-size: 1.1rem;
}

.total-row.grand-total {
    font-size: 1.5rem;
    font-weight: 700;
    border-top: 2px solid var(--border-color);
    padding-top: 1rem;
    margin-top: 0.5rem;
    color: var(--primary-color);
}

/* Login page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    width: 100%;
    max-width: 450px;
    padding: 2.5rem;
}

.login-card .card-header {
    background: transparent;
    border: none;
    text-align: center;
    padding: 1.5rem 0;
}

.login-card h3 {
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--text-primary);
}

/* Configuración tabs */
.nav-tabs {
    border-bottom: 1px solid var(--border-color);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    background: transparent;
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
    background-color: transparent;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-color);
}

/* Alerts */
.alert {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

/* Loading spinner */
.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

/* Dropdown menus in dark mode */
.dropdown-menu {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
}

.dropdown-item {
    color: var(--text-primary);
}

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

/* Sidebar menu */
.sidebar {
    width: 250px;
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    min-height: calc(100vh - 56px);
    position: fixed;
    left: 0;
    top: 56px;
    transition: all 0.3s ease;
    z-index: 1000;
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar-nav {
    list-style: none;
    padding: 1rem 0;
    margin: 0;
}

.sidebar-nav-item {
    padding: 0.75rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.sidebar-nav-item.active {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.sidebar-nav-item i {
    font-size: 1.2rem;
    min-width: 20px;
}

.sidebar.collapsed .sidebar-nav-item span {
    display: none;
}

.main-content {
    margin-left: 250px;
    transition: margin-left 0.3s ease;
    padding: 2rem;
}

.main-content.expanded {
    margin-left: 70px;
}

/* Responsive */
@media (max-width: 768px) {
    .stat-card .stat-value {
        font-size: 2rem;
    }

    .ambiente-badge {
        position: relative;
        margin: 0.5rem 0;
    }

    .sidebar {
        transform: translateX(-100%);
    }

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

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

    .theme-toggle {
        margin-left: 0.5rem;
    }
}

/* Print styles */
@media print {

    .no-print,
    .sidebar,
    .navbar {
        display: none !important;
    }

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