body {
  font-family: Arial, "メイリオ", "ヒラギノ角ゴ ProN W3", sans-serif;
  background: #f7f7f7;
  text-align: center;
  margin: 0;
  padding: 40px;
}

h1 {
  font-size: 2em;
  margin-bottom: 20px;
}

#input-kanji {
  font-size: 1.2em;
  padding: 8px;
  width: 90vw;
  max-width: 300px;
  border-radius: 5px;
  border: 1px solid #ccc;
  margin-bottom: 12px;
  box-sizing: border-box;
}

#reset-area {
  margin-bottom: 20px;
}

#reset-btn {
  padding: 7px 22px;
  font-size: 1em;
  border-radius: 5px;
  border: 1px solid #bbb;
  background: #fff;
  cursor: pointer;
  color: #333;
  transition: background 0.15s;
}
#reset-btn:hover {
  background: #e3e3e3;
}

#slider-area {
  margin-top: 24px;
  margin-bottom: 12px;
}

#display-area {
  margin-top: 30px;
  min-height: 150px;
}

.kanji-large {
  color: #333;
  background: #fff;
  padding: 2vw 4vw;
  border-radius: 3vw;
  box-shadow: 0 4px 24px rgba(0,0,0,0.09);
  display: inline-block;
  margin: 1vw;
  transition: font-size 0.2s;
  font-size: 20vw; /* 初期値。JSで上書き */
  max-width: 90vw;
  word-break: break-all;
  white-space: pre-line;
}

#hint {
  color: #888;
  margin-top: 12px;
}

#zoom-value {
  font-size: 1.1em;
  margin-left: 10px;
  color: #444;
}

/* レスポンシブ: スマホでさらに大きく */
@media (max-width: 600px) {
  .kanji-large {
    font-size: 25vw;
    padding: 4vw 6vw;
    margin: 2vw;
  }
  #input-kanji {
    max-width: 96vw;
    font-size: 1.3em;
  }
  body {
    padding: 8vw 2vw;
  }
}