/* 繝吶�繧ｹ繧ｹ繧ｿ繧､繝ｫ */
html {
  scroll-behavior: smooth;
}

body {
  font-family: "Arial", sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 20px;
  background-color: #f9f9f9;
  color: #333;
  box-sizing: border-box;
  text-align: center;
}

h1, h2 {
  color: #2c3e50;
}

h1 {
  font-size: 2rem;
  border-bottom: 2px solid #3498db;
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
}

/* 繝懊ち繝ｳ繧ｹ繧ｿ繧､繝ｫ */
button {
  padding: 10px 20px;
  font-size: 1rem;
  background-color: #3498db;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s;
  margin-bottom: 20px;
}

button:hover {
  background-color: #1e70bf;
}

/* 繧ｭ繝｣繝ｳ繝舌せ�医げ繝ｩ繝包ｼ� */
canvas {
  border: 1px solid #ccc;
  display: block;
  margin: 20px auto;
  max-width: 100%;
  height: auto;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
}

/* 蜻ｨ豕｢謨ｰ繝ｪ繧ｹ繝� */
ul#frequencyData {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 400px;
  text-align: left;
}

ul#frequencyData li {
  padding: 6px 12px;
  background-color: #eef3f8;
  border-bottom: 1px solid #dce3ea;
  font-weight: bold;
  font-size: 0.95rem;
}

/* 蜈ｨ菴馴浹驥剰｡ｨ遉ｺ */
#overallVolume {
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

/* 繝輔ャ繧ｿ繝ｼ繝ｪ繝ｳ繧ｯ */
a {
  color: #3498db;
  text-decoration: none;
  transition: color 0.3s;
}

a:hover {
  color: #1e70bf;
  text-decoration: underline;
}

p {
  margin: 0.5rem 0;
}

p a {
  display: inline;
  margin: 0.5rem 0;
  padding: 0;
  border: none;
  background: none;
}

/* 繝ｬ繧ｹ繝昴Φ繧ｷ繝門ｯｾ蠢� */
@media (max-width: 600px) {
  body {
    padding: 10px;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.2rem;
  }

  button {
    width: 100%;
    font-size: 1rem;
  }

  ul#frequencyData {
    max-width: 100%;
    padding: 0 10px;
  }

  canvas {
    width: 100% !important;
    height: auto !important;
  }
}