body {
            background-color: #f8f9fa;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .navbar {
            background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 0.2rem 0;
        }

        .navbar-brand {
            font-weight: bold;
            color: #ecf0f1 !important;
            font-size: 1.5rem;
        }

        .navbar-nav .nav-link {
            color: #bdc3c7 !important;
            font-weight: 500;
            padding: 0.75rem 1.25rem !important;
            transition: all 0.3s ease;
            border-radius: 5px;
            margin: 0 0.25rem;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: #ecf0f1 !important;
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }

        .navbar-nav .nav-link i {
            margin-right: 0.5rem;
            width: 20px;
            text-align: center;
        }

        .dropdown-menu {
            background-color: #2c3e50;
            border: none;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            margin-top: 0.5rem;
        }

        .dropdown-item {
            color: #bdc3c7 !important;
            padding: 0.75rem 1.25rem;
            transition: all 0.3s ease;
        }

        .dropdown-item:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: #ecf0f1 !important;
        }

        .dropdown-item i {
            width: 20px;
            text-align: center;
        }

        .main-content {
            padding: 2rem 0px 10px 0px;
            min-height: calc(100vh - 80px);
        }

        .page-header {
            background: white;
            padding: 2rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid #e9ecef;
        }

        .page-title {
            color: #2c3e50;
            font-weight: 600;
            margin: 0;
        }

        .page-subtitle {
            color: #7f8c8d;
            margin: 0.5rem 0 0 0;
        }

        .card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
        }

        .card-header {
            background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
            color: white;
            border-radius: 10px 10px 0 0 !important;
            padding: 1rem 1.5rem;
            font-weight: 600;
        }

        .table {
            margin-bottom: 0;
        }

        .table th {
            border-top: none;
            background-color: #f8f9fa;
            color: #495057;
            font-weight: 600;
            padding: 1rem;
        }

        .table td {
            padding: 1rem;
            vertical-align: middle;
        }

        .btn {
            border-radius: 6px;
            font-weight: 500;
            padding: 0.5rem 1rem;
        }

        .btn-sm {
            padding: 0.25rem 0.75rem;
            font-size: 0.875rem;
        }

        .status-badge {
            padding: 0.375rem 0.75rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
        }

        .status-pending {
            background-color: #fff3cd;
            color: #856404;
        }

        .status-completed {
            background-color: #d4edda;
            color: #155724;
        }

        .status-cancelled {
            background-color: #f8d7da;
            color: #721c24;
        }

        .stats-card {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border-radius: 15px;
            padding: 1rem;
            margin-bottom: 1.5rem;
        }

        .stats-number {
            font-size: 2.5rem;
            font-weight: bold;
            margin-bottom: 0.5rem;
        }

        .stats-label {
            font-size: 0.9rem;
            opacity: 0.9;
        }

        .end_subscription_alert {
            /* bottom: 10 opacity: 0.5 z-index: 1000 */
            bottom: 2px;
            opacity: 0.5;
            z-index: 1000;
            position: fixed;
        }