/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-color: #333333;
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: #e1e5e9;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f4;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --error-color: #dc3545;
    --info-color: #17a2b8;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

/* Layout principal */
.admin-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.admin-container {
    display: flex;
    flex: 1;
    min-height: calc(100vh - 70px);
}

.main-content {
    flex: 1;
    margin-left: 280px;
    transition: var(--transition);
}

.content-wrapper {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.admin-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    height: 70px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: 100%;
}

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

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background: var(--bg-tertiary);
}

.header-title h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

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

.header-right {
    display: flex;
    align-items: center;
}

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

.header-item {
    position: relative;
}

/* Notifications */
.notification-btn {
    position: relative;
    background: none;
    border: none;
    padding: 0.75rem;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.notification-btn:hover {
    background: var(--bg-tertiary);
}

.notification-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--error-color);
    color: white;
    font-size: 0.75rem;
    padding: 0.125rem 0.375rem;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

.notification-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 320px;
    max-height: 400px;
    overflow-y: auto;
    display: none;
    z-index: 1001;
}

.notification-dropdown.show {
    display: block;
}

.notification-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.notification-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.notification-list {
    max-height: 300px;
    overflow-y: auto;
}

.notification-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.notification-item:hover {
    background: var(--bg-secondary);
}

.notification-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.notification-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.notification-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.notification-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

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

/* User menu */
.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.user-btn:hover {
    background: var(--bg-tertiary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-info {
    text-align: left;
}

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 250px;
    display: none;
    z-index: 1001;
}

.user-dropdown.show {
    display: block;
}

.user-dropdown-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.user-dropdown-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

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

.user-dropdown-menu {
    padding: 0.5rem 0;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
}

.user-dropdown-item:hover {
    background: var(--bg-secondary);
}

.user-dropdown-divider {
    margin: 0.5rem 0;
    border: 0;
    border-top: 1px solid var(--border-color);
}

/* Sidebar */
.admin-sidebar {
    width: 280px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 70px;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 999;
}

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

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

.nav-item {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.nav-link.active {
    background: var(--bg-secondary);
    color: var(--primary-color);
    font-weight: 600;
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-color);
}

.nav-icon {
    flex-shrink: 0;
}

.nav-text {
    font-size: 0.875rem;
}

.nav-section {
    margin: 1.5rem 0 0.5rem 0;
}

.nav-section-title {
    display: block;
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

/* Breadcrumb */
.breadcrumb-container {
    padding: 1rem 2rem 0;
    margin-top: 70px;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
}

.breadcrumb-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

.breadcrumb-separator {
    margin: 0 0.5rem;
    color: var(--text-muted);
}

/* Dashboard */
.dashboard {
    space-y: 2rem;
}

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

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
}

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

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.dashboard-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

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

.card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.card-content {
    padding: 1.5rem;
}

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

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-client {
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.activity-subscription {
    background: var(--info-color);
    color: white;
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.activity-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-secondary);
}

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

.client-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.client-name {
    font-weight: 500;
}

.client-email {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 12px;
}

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-full {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: var(--transition);
}

.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(0, 0, 0, 0.1);
}

/* Auth pages */
.auth-page {
    background: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-container {
    width: 100%;
    max-width: 400px;
}

.auth-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.auth-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

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

.auth-content {
    padding: 1rem 2rem 2rem;
}

.auth-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-align: center;
}

.auth-content .text-muted {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-align: center;
    margin-bottom: 2rem;
}

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

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

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
}

.auth-links a:hover {
    text-decoration: underline;
}

.auth-footer {
    padding: 1rem 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    text-align: center;
}

.auth-footer p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Alerts */
.alerts-container {
    margin-bottom: 1.5rem;
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    position: relative;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid rgba(40, 167, 69, 0.2);
    color: var(--success-color);
}

.alert-error {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.2);
    color: var(--error-color);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.2);
    color: #856404;
}

.alert-info {
    background: rgba(23, 162, 184, 0.1);
    border: 1px solid rgba(23, 162, 184, 0.2);
    color: var(--info-color);
}

.alert-content {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    flex: 1;
}

.alert-icon {
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.alert-message {
    flex: 1;
    font-size: 0.875rem;
    line-height: 1.5;
}

.alert-close {
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
    color: inherit;
    opacity: 0.7;
}

.alert-close:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.1);
}

/* Error pages */
.error-page {
    background: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.error-container {
    text-align: center;
    max-width: 600px;
    width: 100%;
}

.error-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
}

.error-icon {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.error-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.error-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.error-message {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.error-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

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

.error-footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Footer */
.admin-footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 1rem 2rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-left p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Utility classes */
.text-muted {
    color: var(--text-muted);
}

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

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* Responsive */
@media (max-width: 1024px) {
    .main-content {
        margin-left: 0;
    }
    
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: block;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .content-wrapper {
        padding: 1rem;
    }
    
    .breadcrumb-container {
        padding: 1rem;
    }
    
    .header-content {
        padding: 0 1rem;
    }
    
    .header-title .subtitle {
        display: none;
    }
    
    .user-info {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .dashboard-grid {
        gap: 1rem;
    }
    
    .error-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .auth-page {
        padding: 1rem;
    }
    
    .auth-card {
        width: 100%;
    }
    
    .auth-header,
    .auth-content {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
    
    .error-content {
        padding: 2rem 1.5rem;
    }
    
    .error-title {
        font-size: 3rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .card-content {
        padding: 1rem;
    }
}

/* ===== STYLES POUR LE MODULE FACTURES ===== */

/* Badges de statut spécifiques aux factures */
.status-badge.status-payee {
    background: var(--success-color);
    color: white;
}

.status-badge.status-en_attente {
    background: var(--info-color);
    color: white;
}

.status-badge.status-en_retard {
    background: var(--error-color);
    color: white;
}

.status-badge.status-draft {
    background: var(--text-muted);
    color: white;
}

/* Badges de type de facture */
.type-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.type-badge.type-abonnement {
    background: var(--info-color);
    color: white;
}

.type-badge.type-depot_garantie {
    background: var(--warning-color);
    color: var(--text-primary);
}

.type-badge.type-autre {
    background: var(--text-muted);
    color: white;
}

/* Indicateurs d'échéance */
.overdue-badge {
    background: var(--error-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    animation: pulse 2s infinite;
}

.due-soon-badge {
    background: var(--warning-color);
    color: var(--text-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* Cellules spécifiques du tableau des factures */
.table-row .invoice-number {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-weight: 600;
}

.table-row .client-info .client-name {
    font-weight: 600;
    color: var(--text-primary);
}

.table-row .client-info .client-email {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.125rem;
}

.table-row .amount .amount-value {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--success-color);
}

.table-row .due-date .no-date {
    color: var(--text-muted);
    font-style: italic;
}

.table-row .payment-date {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.table-row .subscription .subscription-name {
    font-weight: 500;
    color: var(--text-primary);
}

.table-row .subscription .no-subscription {
    color: var(--text-muted);
    font-style: italic;
}

/* Page de détail des factures */
.invoice-detail .invoice-meta {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.invoice-detail .amount-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--success-color);
}

/* Liste des matériels dans le détail de facture */
.materials-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.material-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.material-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.material-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.material-name {
    font-weight: 600;
    color: var(--text-primary);
}

.material-details {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.material-details .serial {
    background: var(--bg-tertiary);
    padding: 0.125rem 0.25rem;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.75rem;
}

.material-pricing {
    text-align: right;
}

.material-pricing .price {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.material-pricing .inclusion {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.material-dates {
    text-align: right;
    font-size: 0.875rem;
}

.material-dates .date-item {
    margin-bottom: 0.25rem;
}

.material-dates label {
    color: var(--text-secondary);
    display: block;
    font-weight: 500;
}

.material-dates span {
    color: var(--text-primary);
    font-weight: 500;
}

/* Historique des paiements */
.payment-history {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.payment-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    align-items: center;
    transition: var(--transition);
}

.payment-item:hover {
    border-color: var(--success-color);
    box-shadow: var(--shadow-sm);
}

.payment-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.payment-method {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.payment-method::before {
    content: "💳";
    font-size: 1.25rem;
}

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

.payment-amount {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--success-color);
}

.payment-status {
    text-align: right;
}

/* Informations techniques */
.technical-info {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    background: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.download-link:hover {
    background: var(--primary-color);
    color: var(--secondary-color);
    text-decoration: none;
}

/* Actions spécifiques aux factures */
.action-item.action-warning {
    color: var(--warning-color);
}

.action-item.action-warning:hover {
    background: var(--warning-color);
    color: var(--text-primary);
}

/* Responsive design pour les factures */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .material-item {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .material-pricing,
    .material-dates {
        text-align: left;
    }
    
    .payment-item {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .payment-amount {
        text-align: left;
    }
    
    .payment-status {
        text-align: left;
    }
    
    /* Masquer certaines colonnes sur mobile */
    .table-container table th:nth-child(5),
    .table-container table td:nth-child(5),
    .table-container table th:nth-child(6),
    .table-container table td:nth-child(6),
    .table-container table th:nth-child(8),
    .table-container table td:nth-child(8) {
        display: none;
    }
}

@media (max-width: 480px) {
    .invoice-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .page-actions {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
    }
    
    .page-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Simplifier le tableau sur très petits écrans */
    .table-container table th:nth-child(4),
    .table-container table td:nth-child(4) {
        display: none;
    }
    
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations pour les mises à jour de statut */
.status-badge {
    transition: all 0.3s ease;
}

.status-badge.status-updated {
    animation: statusUpdate 0.6s ease;
}

@keyframes statusUpdate {
    0% { 
        transform: scale(1);
        background: var(--info-color);
    }
    50% { 
        transform: scale(1.1);
        background: var(--success-color);
    }
    100% { 
        transform: scale(1);
    }
}

/* États de chargement pour les actions asynchrones */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Filtres avancés pour les factures */
.filters-section .filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.filter-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.filter-select,
.filter-input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.filter-select:focus,
.filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* Indicateurs visuels pour les montants */
.amount-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.amount-indicator.high {
    background: var(--success-color);
}

.amount-indicator.medium {
    background: var(--warning-color);
}

.amount-indicator.low {
    background: var(--text-muted);
}

/* Tooltips pour les informations supplémentaires */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
}

/* Styles pour l'export et les rapports */
.export-options {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.export-format {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.export-format:hover,
.export-format.active {
    background: var(--primary-color);
    color: var(--secondary-color);
    border-color: var(--primary-color);
}


.page-header {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.page-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.btn-back {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.btn-back:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.page-header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.filters-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.filters-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.filter-group input,
.filter-group select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
}

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

/* Container du tableau */
.table-container {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.table-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

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

.results-count {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* État vide */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state-icon {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

/* Tableau responsive */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.data-table tbody tr {
    transition: var(--transition);
}

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

.actions-menu {
    display: flex;
    gap: 0.25rem;
    justify-content: flex-end;
}

.action-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid transparent;
}

.action-item:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.detail-nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.nav-back, .nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.detail-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.detail-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.detail-card.full-width {
    grid-column: 1 / -1;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.card-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-content {
    padding: 1.5rem;
}

.info-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-group span {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.user-profile {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.info-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
}

.info-value {
    font-weight: 500;
}

.status-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .filters-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-select {
        min-width: auto;
    }
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .page-header-content {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .detail-nav {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .search-box {
        max-width: none;
    }
    
    .table-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .user-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .user-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }
    
    .actions-menu {
        flex-wrap: wrap;
        justify-content: flex-start;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .data-table {
        font-size: 0.75rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
    }
}