html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  cursor: pointer;
}

#stage {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  gap: 2.5vh;
  padding: 0 6vw;
}

#word {
  color: #fff;
  font-family: "Times New Roman", Times, Georgia, "Hiragino Mincho ProN",
    "Yu Mincho", "Noto Serif", serif;
  font-size: clamp(48px, 9vw, 140px);
  line-height: 1.1;
  text-align: center;
  white-space: pre-wrap;
  word-break: break-word;
  user-select: none;
}

#word .u {
  opacity: 0.55;
}

#transliteration,
#sound,
#label {
  font-family: "Times New Roman", Times, Georgia, serif;
  text-align: center;
  user-select: none;
  transition: opacity 0.6s ease;
}

#transliteration {
  min-height: 1.3em;
  color: #c1eecd;
  font-size: clamp(22px, 3vw, 42px);
}

#sound {
  color: #eec88b;
  font-size: clamp(28px, 3vw, 38px);
}

#label {
  color: #a090b9;
  font-size: clamp(28px, 3vw, 38px);
}

/* A short viewport means the page is being shown inside the portfolio iframe. */
@media (max-height: 500px) {
  #stage {
    gap: 7px;
    padding: 12px;
  }

  #word {
    font-size: clamp(28px, 7vw, 58px);
  }

  #transliteration {
    font-size: clamp(14px, 2.5vw, 20px);
  }

  #sound,
  #label {
    font-size: clamp(13px, 2vw, 18px);
  }
}

@media (prefers-reduced-motion: reduce) {
  #transliteration,
  #sound,
  #label {
    transition: none;
  }
}