/* --- UI HINT --- */
.ui-hint {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    font-family: "Raleway", sans-serif;
    font-size: 14px;
    letter-spacing: 0.4px;
    padding: 10px 16px;
    border-radius: 12px;
    display: none;
    /* hidden by default */
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.ui-hint.is-visible {
    display: flex;
    opacity: 1;
    transform: translate(-50%, 0);
}

.ui-hint.is-gone {
    opacity: 0;
    transform: translate(-50%, 8px);
}

/* Row layout */
.ui-hint__row {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* show desktop or touch hint based on device */
.ui-hint__desktop {
    display: none;
}

.ui-hint__touch {
    display: none;
}

/* auto-detect device type */
@media (hover: hover) and (pointer: fine) {
    .ui-hint__desktop {
        display: flex;
    }
}

@media (hover: none) and (pointer: coarse) {
    .ui-hint__touch {
        display: flex;
    }
}