* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f7f7f8;
  color: #222;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem;
}

h1 {
  margin-bottom: 0.25rem;
}

.subtitle {
  margin-top: 0;
  color: #555;
  font-size: 0.95rem;
}

.panel {
  background: white;
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.controls {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

button {
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
}

.status {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

pre {
  background: #f0f0f2;
  padding: 0.75rem;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.85rem;
}

audio {
  width: 100%;
}