.kata-messenger-btn {
    position: fixed;
    z-index: 9999;
    right: 28px;
    bottom: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 54px;
    padding: 0 20px;
    border-radius: 999px;
    background: #0084ff;
    color: #fff;
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    white-space: nowrap;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .18);
    transition: transform .2s, box-shadow .2s, background-color .2s;
}

.kata-messenger-btn i {
    font-size: 22px;
}

.kata-messenger-btn:hover {
    background: #006fd6;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 7px 26px rgba(0, 132, 255, .34);
}

@media (max-width: 400px) {
    .kata-messenger-btn {
        right: 10px;
        bottom: 16px;
        min-height: 48px;
        padding: 0 12px;
        gap: 7px;
        font-size: 12px;
    }
    .kata-messenger-btn i {
        font-size: 19px;
    }
}