.tooltip {
    position: absolute;
    z-index: 9999;
    display: block;
    margin: 0;
    font-size: 0.875rem;
    max-width: 200px;
    word-wrap: break-word;
    opacity: 0;
    transition: opacity 0.15s ease-in-out;
    pointer-events: none;
}

.tooltip.active {
    opacity: 1;
}

.tooltip-content {
    max-width: 100%;
    padding: 0.4rem 0.8rem;
    color: #fff;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.9);
    border-radius: 0.3rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.tooltip-content::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 5px 5px 0;
    border-style: solid;
    border-color: rgba(0, 0, 0, 0.9) transparent transparent;
}