/* Sistema de Facturación Electrónica - Estilos */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-dark: #1e293b;
    --bg-light: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --sidebar-width: 260px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* Layout */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-dark);
    color: white;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
    color: white;
}

.empresa-nombre {
    font-size: 0.875rem;
    color: var(--secondary-color);
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.nav-item.active {
    background: rgba(37, 99, 235, 0.1);
    border-left-color: var(--primary-color);
    color: white;
}

.nav-item .icon {
    font-size: 1.25rem;
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.ambiente-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    width: 100%;
    text-align: center;
}

.ambiente-pruebas {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

.btn-logout {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: background 0.2s;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    padding: 2rem;
    min-height: 100vh;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.section-header {
    margin-bottom: 2rem;
}

.section-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.text-muted {
    color: var(--text-light);
}

.header-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.blue { background: rgba(37, 99, 235, 0.1); }
.stat-icon.green { background: rgba(16, 185, 129, 0.1); }
.stat-icon.orange { background: rgba(245, 158, 11, 0.1); }
.stat-icon.red { background: rgba(239, 68, 68, 0.1); }

.stat-content h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Tables */
.table-container {
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

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

.data-table thead {
    background: var(--bg-light);
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-light);
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
    background: var(--bg-light);
}

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

/* Forms */
.factura-form {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.form-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-child {
    border-bottom: none;
}

.form-section h3 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-with-button {
    display: flex;
    gap: 0.5rem;
}

.input-with-button select {
    flex: 1;
}

/* Items Table */
.items-table {
    width: 100%;
    margin-bottom: 1rem;
}

.items-table th {
    background: var(--bg-light);
    padding: 0.75rem;
    text-align: left;
    font-size: 0.875rem;
    font-weight: 600;
}

.items-table td {
    padding: 0.5rem;
}

.items-table input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
}

.btn-add-item {
    padding: 0.75rem 1.5rem;
    background: var(--bg-light);
    border: 1px dashed var(--border-color);
    color: var(--primary-color);
    border-radius: 0.375rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-add-item:hover {
    background: rgba(37, 99, 235, 0.05);
    border-color: var(--primary-color);
}

/* Totales */
.totales-container {
    max-width: 400px;
    margin-left: auto;
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.total-row.total-final {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-color);
    border-top: 2px solid var(--border-color);
    border-bottom: none;
    margin-top: 0.5rem;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 0.875rem;
}

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

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

.btn-secondary {
    background: white;
    color: var(--text-dark);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-light);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge.danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.badge.info {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

/* Modals */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
}

.modal-overlay.active {
    display: block;
}

.modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 0.75rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    z-index: 2001;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal.active {
    display: block;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.25rem;
}

.btn-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
}

.modal form {
    padding: 1.5rem;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Search & Filters */
.search-input,
.filter-select {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.875rem;
}

.search-input {
    min-width: 250px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
}

/* Configuration Tabs */
.config-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.875rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-light);
    transition: all 0.2s;
    font-size: 0.9375rem;
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.config-tab-content {
    display: none;
}

.config-tab-content.active {
    display: block;
}

.config-form {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.alert-info {
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1.5rem;
    color: var(--primary-color);
    font-size: 0.875rem;
}

/* Certificate Upload */
.cert-upload-area {
    margin: 1.5rem 0;
}

.upload-box {
    border: 2px dashed var(--border-color);
    border-radius: 0.75rem;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-box:hover {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.02);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.upload-box p {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.cert-info {
    background: var(--bg-light);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.cert-info h4 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

.info-grid > div {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-grid strong {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-light);
    font-weight: 600;
}

.info-grid span {
    color: var(--text-dark);
}