.aire-preload {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: #f9fafb;
}
.aire-preload-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid #e5e7eb;
  border-top-color: #1e3a5f;
  border-radius: 50%;
  animation: aire-spin 0.8s linear infinite;
}
@keyframes aire-spin {
  to { transform: rotate(360deg); }
}