.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    text-decoration: none;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.4);
    transition: all 0.3s ease;
    z-index: 9999;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    background-color: #128C7E;
}

.tooltip {
    position: absolute;
    right: 75px;
    background: #333;
    color: white;
    padding: 10px;
    border-radius: 5px;
    font-size: 14px;
    font-family: Arial, sans-serif;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9999;
}

.whatsapp-btn:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

/* Tambahkan segitiga kecil di tooltip */
.tooltip::before {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    border-left: 8px solid #333;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
}