.editor {
  position: relative;
  overflow: hidden;
  width: 100%;
  border-radius: var(--bd-radius);
  background: var(--bg-muted);
}

form .editor {
  background: var(--bg-default);
}

.editor > textarea, .editor > div.highlight {
  box-sizing: border-box;
  padding: 1rem;
  border: 0;
  margin: 0;
  background: transparent;
  font-family: var(--ft-mono);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  white-space: pre-wrap;
}

.editor > textarea {
  z-index: 1;
  border: 1px solid transparent;
  caret-color: var(--default);
  color: transparent;
}

.editor > div.highlight {
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  overflow: hidden;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.editor > textarea:user-valid {
  border-color: transparent;
}

.editor:hover > textarea {
  border-color: var(--accent);
}

.editor > textarea:focus {
  border-color: var(--active);
}