body { background-color: #f8f9fa; }
.container { max-width: 1100px; }
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1050;
  display: flex;
  align-items: center;
  justify-content: center;
}
.loading-card {
  color: #fff;
  font-weight: 600;
  padding: 24px 32px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.5);
}