.whatsapp-float {
            position: fixed;
            width: 44px;
            height: 44px;
            bottom: 50px;
            /* lebih bawah, sejajar atas tombol scroll */
            right: 16px;
            /* dekat ke sisi kanan */
            background-color: #25d366;
            color: #fff;
            border-radius: 50%;
            text-align: center;
            font-size: 20px;
            box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: pulse 2s infinite;
            transition: transform 0.3s ease;
        }

        .whatsapp-float:hover {
            transform: scale(1.1);
        }

        .whatsapp-icon {
            animation: tada 1.5s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
            }

            70% {
                box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
            }

            100% {
                box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
            }
        }

        @keyframes tada {
            0% {
                transform: scale(1);
            }

            10%,
            20% {
                transform: scale(0.9) rotate(-3deg);
            }

            30%,
            50%,
            70%,
            90% {
                transform: scale(1.1) rotate(3deg);
            }

            40%,
            60%,
            80% {
                transform: scale(1.1) rotate(-3deg);
            }

            100% {
                transform: scale(1) rotate(0);
            }
        }