/* ========================================
   Tooltip System — data-tooltip attribute
   ========================================
   Usage:
     <button data-tooltip="ข้อความ">...</button>
     <button data-tooltip="ข้อความ" data-tooltip-pos="bottom">...</button>

   Positions: top (default), bottom, left, right
   ======================================== */

[data-tooltip] {
    position: relative;
}

[data-tooltip]::before,
[data-tooltip]::after {
    position: absolute;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

/* Bubble */
[data-tooltip]::after {
    content: attr(data-tooltip);
    white-space: nowrap;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.4;
    padding: 6px 12px;
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.92);
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    font-family: 'Sarabun', sans-serif;
}

/* Arrow */
[data-tooltip]::before {
    content: '';
    width: 0;
    height: 0;
    border: 5px solid transparent;
}

/* === TOP (default) === */
[data-tooltip]::after,
[data-tooltip][data-tooltip-pos="top"]::after {
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
}
[data-tooltip]::before,
[data-tooltip][data-tooltip-pos="top"]::before {
    bottom: calc(100% + -2px);
    left: 50%;
    transform: translateX(-50%);
    border-top-color: rgba(15, 23, 42, 0.92);
}

/* === BOTTOM === */
[data-tooltip-pos="bottom"]::after {
    bottom: auto;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
}
[data-tooltip-pos="bottom"]::before {
    bottom: auto;
    top: calc(100% + -2px);
    left: 50%;
    transform: translateX(-50%);
    border-top-color: transparent;
    border-bottom-color: rgba(15, 23, 42, 0.92);
}

/* === LEFT === */
[data-tooltip-pos="left"]::after {
    bottom: auto;
    right: calc(100% + 8px);
    left: auto;
    top: 50%;
    transform: translateY(-50%) translateX(4px);
}
[data-tooltip-pos="left"]::before {
    bottom: auto;
    left: auto;
    right: calc(100% + -2px);
    top: 50%;
    transform: translateY(-50%);
    border-top-color: transparent;
    border-left-color: rgba(15, 23, 42, 0.92);
}

/* === RIGHT === */
[data-tooltip-pos="right"]::after {
    bottom: auto;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%) translateX(-4px);
}
[data-tooltip-pos="right"]::before {
    bottom: auto;
    left: calc(100% + -2px);
    top: 50%;
    transform: translateY(-50%);
    border-top-color: transparent;
    border-right-color: rgba(15, 23, 42, 0.92);
}

/* === Show on hover === */
[data-tooltip]:hover::after,
[data-tooltip]:hover::before {
    opacity: 1;
}

/* Top hover */
[data-tooltip]:hover::after,
[data-tooltip][data-tooltip-pos="top"]:hover::after {
    transform: translateX(-50%) translateY(0);
}

/* Bottom hover */
[data-tooltip-pos="bottom"]:hover::after {
    transform: translateX(-50%) translateY(0);
}

/* Left hover */
[data-tooltip-pos="left"]:hover::after {
    transform: translateY(-50%) translateX(0);
}

/* Right hover */
[data-tooltip-pos="right"]:hover::after {
    transform: translateY(-50%) translateX(0);
}

/* === Don't show empty tooltips === */
[data-tooltip=""]::before,
[data-tooltip=""]::after {
    display: none;
}