html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.hb-text {
  margin: 0;
  display: flex;
  gap: 0;
  font: 800 clamp(24px, 8vw, 38px)/1.2 "Space Mono", "Courier New", monospace;
}

.hb-c {
  display: inline-block;
  min-width: 1ch;
  text-align: center;
  color: #fff7e6;
}

.hb-off {
  color: #d8c2b1;
}

.hb-on {
  color: #8bc6a5;
}

@media (prefers-reduced-motion: reduce) {
  .hb-c {
    color: #fff7e6;
  }
}