.tooltip-icon {
    display: inline-block;
    margin-left: 6px;
    cursor: pointer;
    font-weight: bold;
    color: #0073aa;
    position: relative;
}

.tooltip-icon::after {
    content: attr(data-tooltip);
    display: none;
    position: absolute;
    top: 25px;
    left: 0;
    background: #333;
    color: #fff;
    font-size: 13px;
    padding: 6px 10px;
    border-radius: 5px;
    z-index: 9999;
    white-space: normal;
    max-width: 200px;
}

.tooltip-icon:hover::after {
    display: block;
}