/* 全サンプル共通の最小限のスタイル */
body {
  font-family: 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
  margin: 0;
  background: #f7f8fa;
  color: #333;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

h1 {
  font-size: 1.4rem;
}

.description {
  color: #666;
  font-size: 0.9rem;
}

.chart-box {
  background: #fff;
  border: 1px solid #e3e6ea;
  border-radius: 8px;
  padding: 16px;
  margin-top: 16px;
}

.status {
  padding: 24px;
  text-align: center;
  color: #888;
}

.status.error {
  color: #c0392b;
}

nav a {
  color: #2b6cb0;
}

.sample-list {
  list-style: none;
  padding: 0;
}

.sample-list li {
  background: #fff;
  border: 1px solid #e3e6ea;
  border-radius: 8px;
  margin: 12px 0;
  padding: 16px;
}

.sample-list a {
  font-size: 1.1rem;
  font-weight: bold;
  color: #2b6cb0;
  text-decoration: none;
}

.sample-list p {
  margin: 8px 0 0;
  color: #666;
  font-size: 0.9rem;
}

code {
  background: #eef1f4;
  border-radius: 4px;
  padding: 1px 5px;
}