:root {
            --primary-color: #4a6bff;
            --secondary-color: #f8f9fa;
            --accent-color: #ff7e5f;
        }
        
        body {
            background-color: #f5f7ff;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            min-height: 100vh;
            background: url('../images/background.png') no-repeat center center fixed;
            background-size: cover;
            position: relative;
        }
        
        body::before {
            content: '';
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.4);
            z-index: 0;
        }
        
        .menu {
            margin-bottom: 20px;
            padding: 15px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: relative;
            z-index: 1;
        }
        
        .menu a {
            margin-right: 15px;
            text-decoration: none;
            font-weight: bold;
            color: #555;
            padding: 8px 15px;
            border-radius: 6px;
            transition: all 0.3s ease;
        }
        
        .menu a:hover {
            color: var(--primary-color);
            background: rgba(74, 107, 255, 0.1);
        }
        
        .menu a.selected {
            color: #fff;
            background: #007bff;
            padding: 4px 10px;
            border-radius: 4px;
        }
        
        .form-container {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            margin-bottom: 30px;
        }
        
        h2, h3 {
            color: var(--primary-color);
            margin-bottom: 25px;
            font-weight: 700;
        }
        
        .form-section {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eee;
        }
        
        .form-section:last-child {
            border-bottom: none;
        }
        
        label {
            font-weight: 600;
            color: #555;
            margin-bottom: 8px;
            display: block;
        }
        
        .form-control, .form-select {
            border-radius: 8px;
            padding: 12px 15px;
            border: 1px solid #ddd;
            transition: all 0.3s;
        }
        
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(74, 107, 255, 0.25);
            background: #fff9c4 !important;
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 10px 25px;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .btn-primary:hover {
            background-color: #3a5bef;
            border-color: #3a5bef;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(74, 107, 255, 0.3);
        }
        
        .table {
            border-radius: 10px;
            overflow: hidden;
        }
        
        .table thead {
            background-color: var(--primary-color);
            color: white;
        }
        
        .table th {
            font-weight: 600;
        }
        
        .table-bordered th, 
        .table-bordered td {
            border: 1px solid #dee2e6;
        }
        
        .vaksin-table tbody tr:nth-child(odd) {
            background-color: rgba(74, 107, 255, 0.05);
        }
        
        .vaksin-table tbody tr:hover {
            background-color: rgba(74, 107, 255, 0.1);
        }
        
        .required-field::after {
            content: " *";
            color: red;
        }
        
        .card-header {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        
        .btn-sm {
            border-radius: 6px;
        }
        
        .btn-success {
            background-color: #28a745;
            border-color: #28a745;
        }
        
        .btn-secondary {
            background-color: #6c757d;
            border-color: #6c757d;
        }

        .menu, .container, .d-flex, form, h2, h3, table, .table {
            position: relative;
        }

        input, textarea, select { text-transform: uppercase; }

        .dropdown-menu {
            z-index: 1055 !important;
        }

        .modal-backdrop {
            z-index: 1080 !important;
        }
        .modal {
            z-index: 1090 !important;
        }