body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f8f9fa;
  color: #333;
}

.container {
  width: 85%;
  margin: auto;
  text-align: center;
}

.header {
  background: white;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: left;
}

.header h1 {
  font-size: 20px;
  margin-bottom: 10px;
}

.header a {
  color: #007bff;
  text-decoration: none;
}

.heatmap-container {
  display: flex;
  justify-content: center;
  align-items: start;
  margin-top: 20px;
}

#heatmap {
  flex: 1;
  padding: 10px;
}

.legend {
  width: 150px;
  text-align: left;
  margin-left: 20px;
}

.legend h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.color-scale {
  width: 100%;
  height: 20px;
  background: linear-gradient(to right, #e0f3f8, #abd9e9, #74add1, #4575b4);
  border-radius: 5px;
}