body {
  font-family: -apple-system, "Noto Sans Thai", sans-serif;
  margin: 0;
  background: #f5f6f8;
  color: #222;
}

main {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 20px;
  margin-bottom: 12px;
}

.controls {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

select, button {
  font-size: 15px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #ccc;
  background: white;
}

button {
  background: #06c755;
  color: white;
  border: none;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
}

.meta {
  font-size: 12px;
  color: #777;
  margin: 4px 0 12px;
}

.summary {
  background: white;
  border-radius: 12px;
  padding: 16px;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.6;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}