.form-group {
    margin-bottom: 1rem;
    position: relative;
}

.help-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    line-height: 18px;
    text-align: center;
    border-radius: 50%;
    background-color: #42a5f5; /*#ccc;*/
    color: #fff;
    font-size: 12px;
    /*font-weight: bold;*/
    cursor: pointer;
    margin-left: 5px;
    position: relative;
}

    .help-icon::after {
        content: attr(data-tooltip);
        position: absolute;
        bottom: 125%;
        left: 50%;
        transform: translateX(-50%);
        background-color: #333;
        color: #fff;
        padding: 6px 10px;
        border-radius: 4px;
        white-space: nowrap;
        font-size: 12px;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
        z-index: 100;
    }

    .help-icon:hover::after {
        opacity: 1;
    }