* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

.app-version-badge {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 9999;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  color: #cbd5e1;
  background: rgba(2, 6, 23, 0.82);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.container {
  max-width: 780px;
  margin: 2rem auto;
  padding: 1rem;
}

h1 {
  margin-top: 0;
}

.hint {
  color: #94a3b8;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 0.65rem 1rem;
  cursor: pointer;
}

button.secondary {
  background: #334155;
  color: #e2e8f0;
  font-weight: 600;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status {
  font-size: 0.95rem;
  color: #cbd5e1;
}

section {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 10px;
  background: #111827;
}

pre {
  white-space: pre-wrap;
  word-wrap: break-word;
  margin: 0;
  color: #e5e7eb;
}

audio {
  width: 100%;
}