body {
}
/* ===============================
   UI Busy Loader (Squares)
   =============================== */

.ui-busy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-height: 1em; /* prevents vertical jump */
}

/* Individual squares */
.ui-busy-square {
    width: 6px;
    height: 6px;
    border-radius: 2px;
    background-color: currentColor;
    opacity: 0.2;
    animation: ui-busy-pulse 1.2s infinite ease-in-out;
}

    .ui-busy-square:nth-child(1) {
        animation-delay: 0s;
    }

    .ui-busy-square:nth-child(2) {
        animation-delay: 0.15s;
    }

    .ui-busy-square:nth-child(3) {
        animation-delay: 0.3s;
    }

    .ui-busy-square:nth-child(4) {
        animation-delay: 0.45s;
    }

@keyframes ui-busy-pulse {
    0%, 100% {
        opacity: 0.2;
    }

    50% {
        opacity: 1;
    }
}