:root {
    --floating-contact-bottom: max(2rem, calc(env(safe-area-inset-bottom, 0px) + 1rem));
}

.wa-fab {
    position: fixed;
    left: max(1rem, calc(env(safe-area-inset-left, 0px) + 1rem));
    bottom: var(--floating-contact-bottom);
    z-index: 1030;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, .7);
    border-radius: 50%;
    background: #16854a;
    color: #fff;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(0, 0, 0, .18);
    transition: background-color .15s ease, transform .15s ease;
}

.wa-fab svg {
    display: block;
    width: 26px;
    height: 26px;
    fill: currentColor;
}

.wa-fab:hover {
    background: #106b3a;
    color: #fff;
    transform: translateY(-2px);
}

.wa-fab:focus-visible {
    outline: 3px solid #fff;
    outline-offset: -5px;
    box-shadow: 0 0 0 3px var(--color-custom-dark);
}

body.modal-open .wa-fab,
.nav-open .wa-fab,
.admin-menu-open .wa-fab {
    visibility: hidden;
}

@media (prefers-reduced-motion: reduce) {
    .wa-fab {
        transition: none;
    }
}