html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #1b1b1b;
  color: #fff;
  font-family: system-ui, sans-serif;
}

iframe {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

#status {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #1b1b1b;
  text-align: center;
  font-weight: 700;
}

#status[hidden] {
  display: none;
}

#status.error {
  color: #ffb4b4;
}