/* Full-site chalkboard backdrop (loaded before page styles). */
html {
  min-height: 100vh;
  min-height: 100dvh;
  background-color: #1b1d21;
  background-image: url("assets/chalkboard.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

@media (prefers-reduced-motion: reduce) {
  html {
    background-attachment: scroll;
  }
}