body {
  background-color: #f8f9fa;
}

.container {
  max-width: 800px;
}

.form-group label {
  font-weight: bold;
}

#ruleOutput {
  font-family: 'Courier New', Courier, monospace;
  white-space: pre-wrap;
  word-break: break-all;
}

.rule-output {
  min-height: 320px;
  max-height: 560px;
  overflow: auto;
  resize: vertical;
}