html, body {
  margin: 0;
  padding: 0;
  background: #111;
  color: #fff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}
.speaker-page {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
}
h1 { font-size: 34px; margin: 20px 0; }
.muted, .footnote { color: #bbb; font-size: 18px; }
.speaker-button {
  width: 100%;
  min-height: 72px;
  border: 0;
  border-radius: 14px;
  background: #fff;
  color: #000;
  font-size: 28px;
  font-weight: 700;
  margin: 24px 0;
}
.speaker-status {
  font-size: 22px;
  padding: 12px;
  border: 1px solid #555;
  margin: 16px 0;
}
.now-playing {
  font-size: 52px;
  min-height: 90px;
  margin: 20px 0;
}