:root {
    /* Couleurs principales - Harmonisées avec le site */
    --primary-color: #9B7653;
    --primary-light: #B8956A;
    --primary-dark: #7D5E3F;
    --accent-color: #D4C4B0;
    --accent-light: #F5F0E8;
    
    /* Couleurs de statut */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #9B7653;
    
    /* Backgrounds */
    --background: #FAF7F2;
    --surface: #ffffff;
    
    /* Texte */
    --text-primary: #292524;
    --text-secondary: #78716C;
    
    /* Bordures */
    --border-color: #E7E5E4;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
}

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

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

/* ==================== LOGIN SCREEN ==================== */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 2rem;
}

.login-container {
    background: white;
    border-radius: 16px;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

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

.login-header h1 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

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

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

.login-form input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.btn-login {
    width: 100%;
    padding: 0.875rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-login:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 1rem;
    text-align: center;
}

/* ==================== ADMIN DASHBOARD ==================== */
.admin-dashboard {
    display: grid;
    grid-template-areas:
        "header header"
        "sidebar main";
    grid-template-columns: 250px 1fr;
    grid-template-rows: 70px 1fr;
    min-height: 100vh;
}

/* Header */
.admin-header {
    grid-area: header;
    background: white;
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

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

.header-left h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding-left: 1rem;
    border-left: 2px solid var(--border-color);
}

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

.btn-back-home {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-back-home:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.admin-user {
    color: var(--text-primary);
    font-weight: 500;
}

.btn-logout {
    padding: 0.5rem 1rem;
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-logout:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

/* Sidebar */
.admin-sidebar {
    grid-area: sidebar;
    background: white;
    border-right: 1px solid var(--border-color);
    padding: 2rem 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 2rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

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

.nav-item.active {
    background: var(--accent-light);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.nav-item svg {
    flex-shrink: 0;
}

/* Main Content */
.admin-main {
    grid-area: main;
    padding: 2rem;
    overflow-y: auto;
}

.view-content {
    display: none;
}

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

/* 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;
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

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

/* Filters Section */
.filters-section {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

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

.filters-header h2 {
    font-size: 1.25rem;
    color: var(--text-primary);
}

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

.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: 0.625rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    transition: all 0.3s;
}

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

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

.btn-primary,
.btn-secondary {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

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

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

/* Requests Table */
.requests-table-container {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

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

.requests-table thead {
    background: var(--background);
}

.requests-table th {
    padding: 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.requests-table td {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.requests-table tbody tr {
    transition: background 0.2s;
}

.requests-table tbody tr:hover {
    background: var(--accent-light);
}

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

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

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

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.contact-item svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.work-type-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--accent-light);
    color: var(--primary-color);
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
}

.location-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.location-info svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.status-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
}

.status-pending { background: #fef3c7; color: #f59e0b; }
.status-contacted { background: #dbeafe; color: #3b82f6; }
.status-quoted { background: #e0e7ff; color: #6366f1; }
.status-accepted { background: #dcfce7; color: #10b981; }
.status-completed { background: #d1fae5; color: #059669; }
.status-cancelled { background: #fee2e2; color: #ef4444; }

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

.btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-icon svg {
    width: 16px;
    height: 16px;
}

/* Loading Spinner */
.loading-spinner {
    padding: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Empty State */
.empty-state {
    padding: 4rem;
    text-align: center;
}

.empty-state svg {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.empty-state h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
}

/* Pagination */
.pagination-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
}

.btn-pagination {
    padding: 0.5rem 1rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

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

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

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

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

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

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

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

.detail-grid {
    display: grid;
    gap: 1.5rem;
}

.detail-section {
    display: grid;
    gap: 1rem;
}

.detail-section h3 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.detail-row {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 1rem;
}

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

.detail-value {
    color: var(--text-primary);
    font-size: 0.875rem;
}

.status-select {
    padding: 0.5rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
}

/* Coming Soon */
.coming-soon {
    text-align: center;
    padding: 4rem;
    color: var(--text-secondary);
}

/* Statistics View */
.stats-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.stats-section h3 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.chart-container {
    padding: 1rem 0;
}

/* Bar Chart (Volume mensuel) */
.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 250px;
    gap: 0.5rem;
    padding: 1rem;
    border-left: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
}

.bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 60px;
}

.bar {
    width: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--primary-dark));
    border-radius: 6px 6px 0 0;
    transition: all 0.3s;
    position: relative;
    cursor: pointer;
}

.bar:hover {
    opacity: 0.8;
    transform: translateY(-4px);
}

.bar-value {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.bar-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Horizontal Bars (Répartition par travaux) */
.horizontal-bars {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.horizontal-bar-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.horizontal-bar-label {
    min-width: 180px;
    font-size: 0.875rem;
    color: var(--text-primary);
    font-weight: 500;
}

.horizontal-bar-container {
    flex: 1;
    height: 32px;
    background: var(--background);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.horizontal-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 6px;
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 0.75rem;
}

.horizontal-bar-value {
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

.horizontal-bar-percentage {
    min-width: 50px;
    text-align: right;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Quick Stats */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.quick-stat-item {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.quick-stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.quick-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Settings */
.settings-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.settings-section h3 {
    margin-bottom: 1rem;
}

.settings-section code {
    background: var(--background);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: monospace;
}

/* Responsive */
@media (max-width: 1024px) {
    .admin-dashboard {
        grid-template-areas:
            "header"
            "main";
        grid-template-columns: 1fr;
        grid-template-rows: 70px 1fr;
    }

    .admin-sidebar {
        display: none;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

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

@media (max-width: 768px) {
    .admin-header {
        padding: 0 1rem;
    }

    .admin-main {
        padding: 1rem;
    }

    .header-subtitle {
        display: none;
    }

    .requests-table {
        font-size: 0.8125rem;
    }

    .requests-table th,
    .requests-table td {
        padding: 0.75rem 0.5rem;
    }

    .modal-content {
        width: 95%;
    }

    .detail-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}