.demo-banner {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  gap: .75rem;
  align-items: center;
  justify-content: center;
  padding: .7rem 1rem;
  margin: -1rem -1rem 1rem;
  background: #111827;
  color: #fff;
  border-bottom: 3px solid #f2b705;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .14);
}
.demo-banner strong { color: #ffd33d; letter-spacing: .08em; font-size: .78rem; }
.demo-banner span { font-size: .9rem; }
.demo-read-only main form button[type="submit"],
.demo-read-only main form button:not([type]),
.demo-read-only main input[type="submit"] { opacity: .45; cursor: not-allowed; }
@media (max-width: 700px) {
  .demo-banner { align-items: flex-start; flex-direction: column; gap: .15rem; margin: -.75rem -.75rem .75rem; }
}