.tooltip-mtw {
    position: relative;
    cursor: pointer;
    display: inline-block;
}

/* กล่อง tooltip-mtw */
.tooltip-mtw::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%; /* ด้านบนของ icon */
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: #fff;
    padding: 6px 10px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease;
    font-size: 13px;
    z-index: 100;
}

/* ลูกศร */
.tooltip-mtw::before {
    content: "";
    position: absolute;
    bottom: 115%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: #333 transparent transparent transparent;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease;
}

/* Hover เพื่อแสดง Tooltip-mtw */
.tooltip-mtw:hover::after,
.tooltip-mtw:hover::before {
    opacity: 1;
    visibility: visible;
}