.tooltip {
    position: absolute;
    background: rgba(50, 50, 50, 1);
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    pointer-events: none;
    transition: opacity 0.15s ease;
    opacity: 0;
    z-index: 9999;
}