@font-face {
  font-family: "Berkeley Mono";
  src: url("fonts/BerkeleyMonoTrial-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
* { font-family: "Berkeley Mono", ui-monospace, monospace; }
::selection { background-color: #d4d4d4; color: #000; }
::placeholder { color: #737373; }
.lang { background: none; border: 0; padding: 0; font: inherit; color: #a3a3a3; cursor: pointer; }
.lang:hover, .lang.active { color: #171717; }