body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #172033;
  background: #f8fafc;
}

main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

.editor {
  padding: 32px;
  color: #e5e7eb;
  background: #161b27;
}

.editor-cabecalho {
  margin-bottom: 32px;
}

.editor-cabecalho h1 {
  margin: 0;
  font-size: 28px;
}

.editor h2 {
  margin-top: 24px;
  font-size: 14px;
  color: #9ca3af;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

pre {
  padding: 18px;
  border: 1px solid #374151;
  border-radius: 8px;
  overflow: auto;
  font: 15px/1.5 monospace;
  background: #10141e;
}

.resultado {
  padding: 40px;
}

.resultado h2 {
  margin: 8px 0;
  font-size: 28px;
}

/* Todo o CSS do exemplo também aparece no painel de código. */
.area {
  padding: 24px;
  background: #e8edf5;
}

.caixa1 {
  box-sizing: border-box;
  width: 160px;
  margin: 20px;
  padding: 20px;
  border: 4px solid #2563eb;
  background: #dbeafe;
}

.caixa2 {
  box-sizing: border-box;
  width: 160px;
  margin: 20px 20px 20px 60px;
  padding: 32px;
  border: 4px solid #f97316;
  background: #ffedd5;
}

@media (max-width: 700px) {
  main {
    grid-template-columns: 1fr;
  }
}