:root {
    --primary-color: #3498db;
    --secondary-color: #95a5a6;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background-color: var(--dark-color);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 1.5rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
    padding: 0.5rem;
    display: block;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-logout {
    background-color: var(--danger-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Main Content */
.main-content {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    color: var(--dark-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background-color: #2980b9;
}

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

.btn-secondary:hover {
    background-color: #7f8c8d;
}

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

.btn-success:hover {
    background-color: #27ae60;
}

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

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

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

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

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

.badge-rembourse {
    background-color: var(--success-color);
    color: white;
}

.badge-rejete {
    background-color: var(--danger-color);
    color: white;
}

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

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

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.alert ul {
    margin-left: 1.5rem;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

.auth-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 450px;
}

.auth-card h1 {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.default-credentials {
    margin-top: 2rem;
    padding: 1rem;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
}

.default-credentials p {
    margin: 0.25rem 0;
}

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

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

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--secondary-color);
    font-size: 0.875rem;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

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

/* Image Preview */
.image-preview {
    margin-top: 1rem;
}

.image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Tickets Grid */
.tickets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.ticket-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: transform 0.3s;
}

.ticket-card:hover {
    transform: translateY(-5px);
}

.ticket-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.ticket-content {
    padding: 1.5rem;
}

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

.ticket-header h3 {
    margin: 0;
    color: var(--dark-color);
}

.ticket-info p {
    margin: 0.5rem 0;
}

.ticket-amount {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--success-color);
}

.ticket-user,
.ticket-date {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.ticket-remarks {
    color: #555;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--light-color);
}

.ticket-actions {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--light-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.empty-state p {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

/* Ticket Detail */
.ticket-detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.ticket-detail-main,
.ticket-detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ticket-photo {
    background: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.ticket-photo img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

.ticket-info-card,
.action-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.ticket-info-card h3,
.action-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

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

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

.info-table th,
.info-table td {
    padding: 0.75rem 0;
    text-align: left;
}

.info-table th {
    font-weight: 600;
    color: var(--dark-color);
    width: 40%;
}

.info-table .amount {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--success-color);
}

.remarks {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--light-color);
}

.remarks h4 {
    margin-bottom: 0.5rem;
}

.action-card.danger {
    border: 1px solid var(--danger-color);
}

/* Statistics */
.statistics-filters {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
}

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

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

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon-primary {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
}

.stat-icon-success {
    background-color: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
}

.stat-icon-warning {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
}

.stat-icon-info {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--info-color);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--dark-color);
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.chart-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.chart-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--dark-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.3);
        padding: 1rem 0;
        gap: 0;
        align-items: stretch;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu a {
        width: 100%;
    }

    .user-info {
        flex-direction: column;
        padding: 1rem;
    }

    .btn-logout {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .main-content {
        padding: 1rem 0;
    }

    .nav-brand a {
        font-size: 1.2rem;
    }

    .tickets-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .ticket-detail-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

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

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

    .statistics-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    /* Tables responsive */
    .users-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .users-table {
        font-size: 0.875rem;
    }

    .users-table th,
    .users-table td {
        padding: 0.75rem 0.5rem;
        white-space: nowrap;
    }

    /* Forms responsive */
    .form-container {
        padding: 1rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }

    .btn-block {
        width: 100%;
    }

    /* Auth pages */
    .auth-card {
        margin: 1rem;
        padding: 1.5rem;
    }

    /* Ticket cards */
    .ticket-card {
        margin-bottom: 1rem;
    }

    .ticket-info-card,
    .action-card {
        padding: 1rem;
    }

    /* Image preview */
    .image-preview img {
        max-height: 200px;
    }
}

@media (max-width: 480px) {
    .nav-brand a {
        font-size: 1rem;
    }

    .page-header h1 {
        font-size: 1.25rem;
    }

    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .btn-sm {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .ticket-amount {
        font-size: 1.25rem;
    }

    /* Reduce font sizes for small screens */
    body {
        font-size: 14px;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    h3 {
        font-size: 1.1rem;
    }

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

    .chart-card {
        padding: 1rem;
    }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .nav-menu a {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Better spacing for touch */
    .form-group {
        margin-bottom: 1.75rem;
    }

    input,
    select,
    textarea {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}