.site-error-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10060;
  margin: 0;
  padding: 14px 20px;
  background: #dc2626;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  text-align: center;
  box-shadow: 0 4px 16px rgb(0 0 0 / 0.18);
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.32s ease, opacity 0.32s ease, visibility 0.32s ease;
  pointer-events: none;
}

.site-error-banner.is-visible {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

@media (max-width: 576px) {
  .site-error-banner {
    padding: 12px 16px;
    font-size: 0.9rem;
  }
}