.wa-float {
    position: fixed;
    bottom: 100px;
    right: 20px;
    z-index: 60;
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    box-shadow: 0 12px 28px -8px rgba(37, 211, 102, 0.6);
    transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.wa-float:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 18px 36px -10px rgba(37, 211, 102, 0.7);
}
.wa-float svg { color: #fff; }

@media (max-width: 480px) {
    .wa-float { width: 50px; height: 50px; right: 16px; }
}