* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        :root {
            --primary: #4361ee;
            --secondary: #3a0ca3;
            --accent: #4cc9f0;
            --light: #f8f9fa;
            --dark: #212529;
            --success: #4bb543;
            --warning: #ffcc00;
            --danger: #dc3545;
            --gray: #6c757d;
            --border-radius: 12px;
            --box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        body {
            background-color: #f5f7fb;
            color: var(--dark);
            line-height: 1.6;
        }

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

        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            margin-bottom: 30px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
        }

        .logo i {
            font-size: 1.8rem;
        }

        .user-profile {
            display: flex;
            align-items: center;
            gap: 10px;
            background: white;
            padding: 8px 15px;
            border-radius: 50px;
            box-shadow: var(--box-shadow);
        }

        .user-profile img {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
        }

        .page-title {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .page-title i {
            color: var(--accent);
        }

        .card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 25px;
            margin-bottom: 25px;
            transition: var(--transition);
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }

        .card-title {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--secondary);
        }

        .btn {
            padding: 10px 20px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

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

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

        .btn-warning {
            background: var(--warning);
            color: var(--dark);
        }

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

        .btn-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }

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

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(76, 201, 240, 0.3);
            outline: none;
        }

        .form-row {
            display: flex;
            gap: 20px;
        }

        .form-row .form-group {
            flex: 1;
        }

        .table-responsive {
            overflow-x: auto;
        }

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

        th, td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid #eee;
        }

        th {
            background-color: #f8f9fa;
            font-weight: 600;
            color: var(--secondary);
        }

        tr:hover {
            background-color: #f8f9fa;
        }

        .badge {
            display: inline-block;
            padding: 5px 10px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .badge-success {
            background: rgba(75, 181, 67, 0.2);
            color: var(--success);
        }

        .badge-warning {
            background: rgba(255, 204, 0, 0.2);
            color: #b38f00;
        }

        .badge-primary {
            background: rgba(67, 97, 238, 0.2);
            color: var(--primary);
        }

        .action-buttons {
            display: flex;
            gap: 10px;
        }

        .action-btn {
            background: none;
            border: none;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
            width: 35px;
            height: 35px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .edit-btn {
            color: var(--warning);
        }

        .edit-btn:hover {
            background: rgba(255, 204, 0, 0.1);
        }

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

        .delete-btn:hover {
            background: rgba(220, 53, 69, 0.1);
        }

        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            align-items: center;
            justify-content: center;
        }

        .modal-content {
            background: white;
            border-radius: var(--border-radius);
            width: 90%;
            max-width: 600px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            animation: modalFade 0.3s;
        }

        @keyframes modalFade {
            from { opacity: 0; transform: translateY(-50px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .modal-header {
            padding: 20px 25px;
            border-bottom: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .modal-title {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--secondary);
        }

        .close-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--gray);
            transition: var(--transition);
        }

        .close-btn:hover {
            color: var(--dark);
        }

        .modal-body {
            padding: 25px;
        }

        .modal-footer {
            padding: 20px 25px;
            border-top: 1px solid #eee;
            display: flex;
            justify-content: flex-end;
            gap: 15px;
        }

        .batch-section {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 15px;
            margin-top: 20px;
        }

        .batch-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }

        .batch-title {
            font-weight: 600;
            color: var(--secondary);
        }

        .batch-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 15px;
        }

        .batch-card {
            background: white;
            border-radius: 8px;
            padding: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }

        .batch-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }

        .batch-name {
            font-weight: 600;
            margin-bottom: 5px;
        }

        .batch-details {
            font-size: 0.9rem;
            color: var(--gray);
        }

        .stats-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }

        .stat-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--box-shadow);
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .stat-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: white;
        }

        .stat-1 .stat-icon {
            background: linear-gradient(135deg, #4361ee, #3a0ca3);
        }

        .stat-2 .stat-icon {
            background: linear-gradient(135deg, #4cc9f0, #4895ef);
        }

        .stat-3 .stat-icon {
            background: linear-gradient(135deg, #f72585, #b5179e);
        }

        .stat-4 .stat-icon {
            background: linear-gradient(135deg, #4bb543, #2e8b57);
        }

        .stat-info h3 {
            font-size: 1.8rem;
            margin-bottom: 5px;
        }

        .stat-info p {
            color: var(--gray);
            font-size: 0.9rem;
        }

        @media (max-width: 768px) {
            .form-row {
                flex-direction: column;
                gap: 0;
            }

            .action-buttons {
                flex-direction: column;
                gap: 5px;
            }

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

            .batch-list {
                grid-template-columns: 1fr;
            }

            .user-profile span {
                display: none;
            }
        }