@media (max-width: 640px) {
  body {
    font-size: 14px;
  }

  h1 {
    font-size: 22px;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .chart-container {
    min-height: 300px;
  }
}

@media (min-width: 641px) and (max-width: 1024px) {
  .container {
    padding-left: 12px;
    padding-right: 12px;
  }

  .chart-container {
    min-height: 400px;
  }
}

@media (min-width: 1025px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .chart-container {
    min-height: 500px;
  }
}