.whatsapp-float {
    all: unset;
    position: fixed;
    right: 20px;
    bottom: 20px;

    width: 70px;
    height: 70px;

    display: flex;
    align-items: center;
    justify-content: center;

    background-color: #25D366;
    border-radius: 50%;
    cursor: pointer;
    z-index: 9999;

    box-shadow: 0 8px 20px rgba(0,0,0,0.25);
    animation: pulse 2s infinite;
}

.whatsapp-img {
    width: 36px;
    height: 36px;
}

/* Hover */
.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Анимация */
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37,211,102,.6); }
    70% { box-shadow: 0 0 0 20px rgba(37,211,102,0); }
    100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

/* 📱 Мобильная адаптация */
@media (max-width: 480px) {
    .whatsapp-float {
        width: 52px;
        height: 52px;
        right: 15px;
        bottom: 15px;
    }

    .whatsapp-img {
        width: 28px;
        height: 28px;
    }
}