:root {
  --etfm-loading-ink: #0f172a;
  --etfm-loading-muted: #64748b;
  --etfm-loading-line: rgba(148, 163, 184, 0.24);
  --etfm-loading-accent: #0f766e;
  --etfm-loading-surface: rgba(255, 255, 255, 0.94);
}

.page-loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  place-items: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.56);
  backdrop-filter: blur(10px);
}

body.is-page-loading .page-loading-overlay {
  display: grid;
}

.page-loading-card,
.data-loading-content {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.75rem;
  border: 1px solid var(--etfm-loading-line);
  border-radius: 8px;
  background: var(--etfm-loading-surface);
  color: var(--etfm-loading-ink);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.16);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25;
}

.page-loading-card {
  padding: 0.875rem 1rem;
}

.data-loading-content {
  padding: 0.75rem 0.875rem;
}

.page-loading-spinner,
.data-loading-spinner {
  width: 1.125rem;
  height: 1.125rem;
  flex: 0 0 auto;
  border: 2px solid rgba(15, 118, 110, 0.18);
  border-top-color: var(--etfm-loading-accent);
  border-radius: 999px;
  animation: etfm-loading-spin 0.78s linear infinite;
}

.data-loading-host {
  position: relative;
}

.data-loading-panel {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  min-height: 5rem;
  border-radius: inherit;
  background: rgba(248, 250, 252, 0.76);
  backdrop-filter: blur(5px);
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}

.data-loading-panel.is-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.data-loading-panel[data-theme="dark"] {
  background: rgba(15, 23, 42, 0.68);
}

.data-loading-panel[data-theme="dark"] .data-loading-content {
  border-color: rgba(148, 163, 184, 0.24);
  background: rgba(15, 23, 42, 0.84);
  color: #e2e8f0;
  box-shadow: 0 18px 45px rgba(2, 6, 23, 0.28);
}

.data-loading-panel[data-theme="dark"] .data-loading-spinner {
  border-color: rgba(52, 211, 153, 0.2);
  border-top-color: #34d399;
}

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

@media (prefers-reduced-motion: reduce) {
  .page-loading-spinner,
  .data-loading-spinner {
    animation: none;
    border-color: var(--etfm-loading-accent);
  }

  .data-loading-panel {
    transition: none;
  }
}