.error-banner {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 60;
  width: min(420px, calc(100vw - 24px));
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(28, 74, 115, .97);
  color: #eaf3fb;
  box-shadow: 0 10px 28px rgba(2, 6, 10, .45);
  font-size: 13px;
  line-height: 1.4;
}

.error-banner__title {
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
  font-weight: 800;
}

.error-banner__text {
  margin: 0 0 8px;
  color: rgba(234, 243, 251, .92);
}

.error-banner__status {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 700;
  color: #bfe0ff;
}

.error-banner__action,
.error-banner__close {
  border: none;
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.error-banner__action {
  background: #eaf3fb;
  color: #1c4a73;
  margin-right: 8px;
}

.error-banner__close {
  background: rgba(255, 255, 255, .14);
  color: #eaf3fb;
}

@media (prefers-reduced-motion: reduce) {
  .error-banner { transition: none; }
}