.tcb-contact-buttons {
    position: fixed;
    bottom: 15%;
    right: 10px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.tcb-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: auto;
    max-width: 60px;
    max-height: 60px;
    border-radius: 50%;
    box-shadow: 0 2px 10px rgba(0,0,0,.2);
    text-decoration: none;
    transition: transform .2s, box-shadow .2s;
    overflow: visible;
}

.tcb-btn:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,.25);
}

.tcb-btn img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 50%;
    display: block;
}

.tcb-btn i {
    font-size: 26px;
    line-height: 1;
}

/* Tooltip */
.tcb-btn-tooltip {
    position: absolute;
    right: 70px;
    background: rgba(255,255,255,0.5);
    color: #142a3d;
    font-size: 13px;
    padding: 7px 10px;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s;
    border: solid 1px #142a3d;
    backdrop-filter: blur(15px);
}

.tcb-btn:hover .tcb-btn-tooltip {
    opacity: 1;
}