.demo-notice {
  background: #0b2330;
  color: #ffffff;
  padding: 9px 16px;
  text-align: center;
  font-family: Arial, sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.035em;
}

@media (max-width: 560px) {
  .demo-notice {
    padding-inline: 12px;
    font-size: 0.67rem;
  }
}