.spinner-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.spinner-overlay[hidden] {
  display: none !important;
}

.spinner-overlay__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(2px);
}

.spinner-overlay__content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 2rem;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.spinner-overlay__message {
  margin: 0;
  font-size: 0.95rem;
  color: #333;
  max-width: 280px;
  text-align: center;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid #e0e0e0;
  border-top-color: var(--color-accent, var(--admin-color-header, #003b83));
  border-radius: 50%;
  animation: spinner-rotate 0.8s linear infinite;
}

@keyframes spinner-rotate {
  to { transform: rotate(360deg); }
}

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