argin: 1rem;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 600px;
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #3b82f6, #2563eb);
            color: white;
            padding: 20px;
            text-align: center;
        }

        .header h1 {
            margin: 0;
            font-size: 1.5rem;
            font-weight