.app-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 176px;
    padding: 40px 16px;
}

.app-loader[hidden] { display: none; }

/* Loading replaces only data rows, never the table headers or filters. */
.ajax-loading-row[hidden] { display: none !important; }
.ajax-table-region[aria-busy="true"] tbody > tr:not(.ajax-loading-row) { display: none; }
.ajax-table-region[aria-busy="true"] .pagination { visibility: hidden; }
.ajax-table-region .ajax-loading-row > td { width: auto; padding: 0; background: transparent; }
.ajax-loading-row .app-loader { min-height: 240px; }

.app-loader-ring {
    position: relative;
    display: block;
    width: 96px;
    height: 96px;
    flex: 0 0 96px;
}

.app-loader-ring > span {
    position: absolute;
    inset: 0;
    transform: rotate(calc(var(--dot-index) * 30deg));
}

.app-loader-ring > span::before {
    content: '';
    position: absolute;
    top: 0;
    left: calc(50% - 6px);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #159fff;
    box-shadow: 0 0 10px #159fff33;
    animation: app-loader-dot 1.8s cubic-bezier(.45, 0, .55, 1) infinite;
    animation-delay: calc(var(--dot-index) * .15s - 1.8s);
}

@keyframes app-loader-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    35%, 80% { opacity: 0; transform: scale(.65); }
}

@media (prefers-reduced-motion: reduce) {
    .app-loader-ring > span::before { animation: none; opacity: .8; }
}