body {
  font-family: sans-serif;
  background: #f7f7f7;
  color: #222;
  margin: 0;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card, .comment-box, .chart-box {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
}

.value {
  font-size: 1.6rem;
  font-weight: bold;
}

.chart-box {
  height: 420px;
}

.chart-box h2,
.comment-box h2 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.unit {
  font-size: 0.6em;
  color: #888;
  margin-left: 4px;
}

.card .note {
  font-size: 0.75em;
  color: #666;
}