.whatsapp-float {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 115;
    min-height: 58px;
    padding: 0 22px 0 17px;
    display: flex;
    align-items: center;
    gap: 11px;
    border: 1px solid #ffffff50;
    border-radius: 999px;
    background: #147a4b;
    color: #fff !important;
    box-shadow: 0 14px 38px #071a2e3d;
    text-decoration: none;
    font: 700 10px/1 Arial, sans-serif;
    letter-spacing: .11em;
    text-transform: uppercase;
    transition: transform .25s ease, background .25s ease, box-shadow .25s ease;
    animation: whatsapp-arrive .6s .8s both;
}

.whatsapp-float::before {
    content: "";
    position: absolute;
    inset: -6px;
    border: 1px solid #1faa67;
    border-radius: inherit;
    opacity: .35;
    animation: whatsapp-pulse 2.6s 1.8s ease-out infinite;
}

.whatsapp-float svg {
    width: 27px;
    height: 27px;
    display: block;
    fill: currentColor;
}

.whatsapp-float:hover {
    transform: translateY(-3px);
    background: #0d8f50;
    box-shadow: 0 18px 44px #071a2e4d;
}

.whatsapp-float:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
}

@keyframes whatsapp-arrive {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: none; }
}

@keyframes whatsapp-pulse {
    0% { transform: scale(.94); opacity: .45; }
    70%, 100% { transform: scale(1.16); opacity: 0; }
}

@media (max-width: 560px) {
    .whatsapp-float {
        right: 16px;
        bottom: 16px;
        width: 56px;
        min-height: 56px;
        padding: 0;
        justify-content: center;
    }

    .whatsapp-float span {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }

    .whatsapp-float svg { width: 28px; height: 28px; }
}

@media (prefers-reduced-motion: reduce) {
    .whatsapp-float,
    .whatsapp-float::before { animation: none; }
    .whatsapp-float { transition: none; }
}