.whatsapp-float {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25D366;
    color: #FFFFFF;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
    z-index: 9999;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    animation: whatsappEnter 0.55s ease-out 0.2s both;
}

.whatsapp-float:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.32);
}

.whatsapp-float svg {
    width: 30px;
    height: 30px;
    fill: currentColor;
}

.whatsapp-tooltip {
    position: absolute;
    right: 68px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    white-space: nowrap;
    background: rgba(11, 18, 32, 0.94);
    color: #FFFFFF;
    padding: 8px 12px;
    border-radius: 6px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

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

@keyframes whatsappEnter {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .whatsapp-float {
        right: 16px;
        bottom: 20px;
    }

    .whatsapp-tooltip {
        display: none;
    }
}