:root {
  color-scheme: dark;
  background: #333;
  color: #d9d9d9;
  font-family: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

main {
  width: 100%;
  height: 100vh;
  height: 100dvh;
}

iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.direct-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background: #d9d9d9;
  color: #333;
  transform: translateY(calc(-100% - 2rem));
}

.direct-link:focus {
  transform: none;
  outline: 3px solid #fff;
  outline-offset: 3px;
}

.no-script {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 2rem;
  background: #333;
  font-size: 1.125rem;
  text-align: center;
}