/* Botón flotante de soporte WhatsApp (shell admin) */
.n4-whatsapp-float {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 1040;
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    display: none !important;
    align-items: center;
    justify-content: center;
    background: #25d366;
    color: #fff !important;
    text-decoration: none !important;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.22);
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    pointer-events: none;
    visibility: hidden;
}

.n4-whatsapp-float.is-visible {
    display: inline-flex !important;
    pointer-events: auto;
    visibility: visible;
}

.n4-whatsapp-float:hover,
.n4-whatsapp-float:focus {
    background: #1ebe57;
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.28);
    outline: none;
}

.n4-whatsapp-float:focus-visible {
    outline: 2px solid rgba(37, 211, 102, 0.55);
    outline-offset: 3px;
}

.n4-whatsapp-float i {
    font-size: 1.55rem;
    line-height: 1;
}