/* Overlay chờ dùng chung cho các trang nhiều dữ liệu. */
.page-loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 4000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(239, 244, 250, 0.82);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  transition: opacity 0.2s ease;
}

.page-loading-overlay[hidden] {
  display: none;
}

.page-loading-overlay.is-hiding {
  opacity: 0;
  pointer-events: none;
}

.page-loading-card {
  display: flex;
  align-items: center;
  gap: 14px;
  width: min(380px, calc(100vw - 40px));
  padding: 16px 20px;
  background: #fff;
  border: 1px solid #d6e2f2;
  border-radius: 14px;
  box-shadow: 0 18px 48px rgba(21, 54, 102, 0.18);
}

.page-loading-spinner {
  flex: none;
  width: 34px;
  height: 34px;
  border: 4px solid #dbe8f8;
  border-top-color: #1f4a8f;
  border-radius: 50%;
  animation: page-loading-spin 0.82s linear infinite;
}

.page-loading-card strong {
  display: block;
  color: #203f7c;
  font-size: 15px;
  font-weight: 800;
}

.page-loading-card p {
  margin: 3px 0 0;
  color: #5a6b82;
  font-size: 12.5px;
  line-height: 1.45;
}

body.theme-dark .page-loading-overlay {
  background: rgba(15, 23, 42, 0.78);
}

body.theme-dark .page-loading-card {
  background: var(--panel, #111827);
  border-color: var(--line, #334155);
}

body.theme-dark .page-loading-card strong {
  color: var(--text, #e5e7eb);
}

body.theme-dark .page-loading-card p {
  color: var(--muted, #94a3b8);
}

@keyframes page-loading-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .page-loading-overlay { transition: none; }
  .page-loading-spinner { animation: none; }
}