.floating-whatsapp-button {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1100;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25d366;
    color: var(--white);
    text-decoration: none;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.floating-whatsapp-button:hover,
.floating-whatsapp-button:focus-visible {
    color: var(--white);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
}

.floating-whatsapp-button i {
    font-size: 30px;
    line-height: 1;
}

@media (max-width: 768px) {
    .floating-whatsapp-button {
        right: 16px;
        bottom: 16px;
        width: 52px;
        height: 52px;
    }
}