.tooltip {
    position: absolute;
    background-color: white;
    border: 1px solid #ccc;
    padding: 10px;
    pointer-events: none;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    z-index: 10;
    font-size: 12px;
    max-width: 250px;
}