body {
  background: #000;
  color: #fff;
  font-family: monospace;
  padding: 2rem;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

textarea {
  width: 100%;
  height: 150px;
  background: #111;
  color: #0f0;
  font-family: monospace;
  font-size: 1rem;
  padding: 1rem;
  margin-bottom: 1rem;
  border: 1px solid #444;
}

.options {
  margin-bottom: 1rem;
}

button {
  padding: 0.5rem 1rem;
  font-size: 1rem;
  cursor: pointer;
}

#output {
  white-space: pre-wrap;
  background: #111;
  color: #0ff;
  padding: 1rem;
  margin-top: 1rem;
  border: 1px solid #444;
}

.actions {
  margin-top: 1rem;
}

.actions button {
  margin-right: 0.5rem;
}