body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f5f5;
  text-align: center;
}

#app {
  max-width: 480px;
  margin: auto;
  padding: 20px;
}

.screen {
  display: block;
}

.hidden {
  display: none;
}

h1 {
  font-size: 1.4rem;
}

.lang-list button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 15px;
  font-size: 1.1rem;
  border-radius: 8px;
  border: none;
}

#record-btn {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  font-size: 3rem;
  margin: 20px auto;
}

#stop-btn {
  margin-top: 20px;
  background: #ddd;
  padding: 10px;
  border-radius: 8px;
  border: none;
}

.status {
  font-weight: bold;
  margin-bottom: 10px;
}