/* Style the WhatsApp button */
        .whatsapp-btn {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background-color: #25D366;
            border-radius: 50%;
            width: 60px;
            height: 60px;
            box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
            display: flex;
            justify-content: center;
            align-items: center;
        }