body {
  margin: 0;
  font-family: sans-serif;
  background: #0f1117;
  color: #fff;
  padding: 20px;
}

h1 {
  margin-bottom: 0;
}

.subtitle {
  margin-top: 0;
  color: #aaa;
}

.dashboard {
  display: flex;
  flex-direction: column;
  gap: 30px;
  margin-top: 30px;
}

canvas {
  background: #1a1c23;
  border-radius: 8px;
}

.heatmaps {
  display: flex;
  gap: 20px;
  justify-content: space-between;
}

.heatmaps div {
  text-align: center;
}