.htn-contact-toolbox {
    position: fixed;
    top: 50%;
    right: 18px;
    z-index: 9990;
    display: none;
    gap: 10px;
    transform: translateY(-50%);
}

.htn-contact-toolbox__action {
    position: relative;
    display: grid;
    width: 58px;
    height: 58px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, .55);
    border-radius: 16px;
    box-shadow: 0 10px 28px rgba(22, 30, 44, .24);
    color: #fff;
    text-decoration: none;
    transition: box-shadow .18s ease, transform .18s ease;
}

.htn-contact-toolbox__action--zalo { background: #0068ff; }
.htn-contact-toolbox__action--messenger { background: linear-gradient(145deg, #08f, #a033ff 62%, #ff5280); }

.htn-contact-toolbox__icon { display: grid; place-items: center; }

.htn-contact-toolbox__action--zalo .htn-contact-toolbox__icon span {
    font-size: 13px;
    font-weight: 850;
    letter-spacing: -.04em;
}

.htn-contact-toolbox__icon svg { width: 31px; height: 31px; fill: currentColor; }

.htn-contact-toolbox__label {
    position: absolute;
    top: 50%;
    right: calc(100% + 10px);
    padding: 8px 11px;
    border-radius: 8px;
    background: #202429;
    box-shadow: 0 7px 20px rgba(22, 30, 44, .2);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    opacity: 0;
    pointer-events: none;
    transform: translate(8px, -50%);
    transition: opacity .18s ease, transform .18s ease;
    white-space: nowrap;
}

.htn-contact-toolbox__action:hover,
.htn-contact-toolbox__action:focus-visible {
    box-shadow: 0 14px 34px rgba(22, 30, 44, .32);
    color: #fff;
    transform: translateX(-3px);
}

.htn-contact-toolbox__action:hover .htn-contact-toolbox__label,
.htn-contact-toolbox__action:focus-visible .htn-contact-toolbox__label {
    opacity: 1;
    transform: translate(0, -50%);
}

.htn-contact-toolbox__action:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }

@media (min-width: 1024px) {
    .htn-contact-toolbox { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
    .htn-contact-toolbox__action,
    .htn-contact-toolbox__label { transition: none; }
}