body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #f7f9fc;
}
h1 {
  color: #007bff;
}
button {
  font-size: 16px;
  padding: 10px 20px;
  margin: 15px;
}
.gauges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  max-width: 400px;
  margin: 0 auto;
}
.gauge {
  border: 2px solid #007bff;
  border-radius: 10px;
  padding: 15px;
  font-size: 18px;
}