.floating-button {
    position: fixed;
    right: 5px;
    bottom: 50px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 28px;
    background: #25D366;
    color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.25);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px
}
.floating-button i {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    padding-top: 2px;
}
.floating-button.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    animation: floating 2.5s ease-in-out infinite;
}
@keyframes floating {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
    100% {
        transform: translateY(0);
    }
}
.floating-button:hover {
    transform: scale(1.1);
}