body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Helvetica, Arial, sans-serif;
  background-color: #f7f9fc;
  color: #333;
}

.container {
  max-width: 600px;
  margin: 80px auto;
  padding: 40px;
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  text-align: center;
}

h1 {
  margin-bottom: 30px;
  font-size: 2.2rem;
  font-weight: 600;
  color: #1a3d7c;
}

.tool {
  font-size: 1.1rem;
  margin: 12px 0;
  padding: 10px 0;
}

.demo {
  color: #555;
}

.production {
  font-weight: 600;
  color: #1b7f3b;
}