.page-loading {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background: var(--bg);
  color: var(--mut);
  font: 14px/1.6 system-ui, sans-serif;
}
.page-loading[hidden], .page-loading [hidden], .page-loading.has-error .loading-spinner { display: none; }
.page-loading p { margin: 0; padding: 0 24px; text-align: center; }
.loading-spinner {
  display: inline-block;
  width: 36px;
  height: 36px;
  box-sizing: border-box;
  border: 3px solid var(--b-100);
  border-top-color: var(--b-400);
  border-radius: 50%;
  flex-shrink: 0;
  animation: pm-loading-spin .8s linear infinite;
}
.board-card[aria-busy="true"] { position: relative; min-height: 220px; }
.board-card[aria-busy="true"]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border-radius: inherit;
}
.board-loading-status { display: none; }
.board-card[aria-busy="true"] > .board-loading-status:not([hidden]) {
  position: absolute;
  z-index: 51;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  transform: translate(-50%, -50%);
  color: var(--mut);
  font-size: 13px;
  line-height: 20px;
  white-space: nowrap;
  pointer-events: none;
}
.td-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 240px;
}
@keyframes pm-loading-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .loading-spinner { animation: none; }
}