body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f7f7f7;
  color: #1f2933;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px;
}

section {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 18px;
  margin: 18px 0;
}

textarea,
pre {
  width: 100%;
  box-sizing: border-box;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

textarea {
  border: 1px solid #bbb;
  border-radius: 6px;
  padding: 10px;
}

pre {
  overflow: auto;
  background: #111827;
  color: #f9fafb;
  padding: 14px;
  border-radius: 6px;
  min-height: 80px;
}

button {
  cursor: pointer;
  border: 1px solid #1f2933;
  background: #1f2933;
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  margin: 6px 6px 6px 0;
}

button:hover {
  background: #374151;
}

.muted {
  color: #6b7280;
}

.actions {
  margin-top: 8px;
}