.demo-notice {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 99999;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 8px 16px;
  color: #e0f2fe;
  background: linear-gradient(90deg, #075985, #0f766e);
  border-bottom: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 8px 24px rgba(2, 8, 23, .28);
  font-size: 13px;
}
.demo-notice button {
  border: 1px solid rgba(255,255,255,.34);
  border-radius: 999px;
  padding: 5px 11px;
  color: #fff;
  background: rgba(15, 23, 42, .28);
  cursor: pointer;
  font: inherit;
  white-space: nowrap;
}
.demo-notice button:hover { background: rgba(15, 23, 42, .48); }
.app-container { padding-top: 42px; }
.sidebar { top: 42px; height: calc(100vh - 42px); }
@media (max-width: 700px) {
  .demo-notice { justify-content: space-between; gap: 8px; font-size: 11px; }
  .demo-notice span { max-width: 72%; }
  .demo-notice button { padding: 5px 8px; }
}