body {
            background-color: #f8f9fa;
        }
        .card {
            max-width: 600px;
            margin: auto;
            padding: 20px;
            text-align: center;
        }
        .amount {
            font-size: 24px;
            font-weight: bold;
            color: green;
        }
        .bank-info {
            border: 1px solid #ddd;
            padding: 15px;
            border-radius: 10px;
            margin-top: 10px;
            background: white;
        }