body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: #fff;
  color: #000;
}

header {
  padding: 60px 20px 20px;
  text-align: center;
}

header h1 {
  font-size: 48px;
  font-weight: 600;
  margin: 0;
}

header p {
  font-size: 20px;
  color: #555;
  margin-top: 12px;
}

footer {
  text-align: center;
  padding: 40px 20px;
  font-size: 14px;
  color: #888;
}

.main-centered {
  max-width: 600px;
  margin: 40px auto;
  padding: 32px 24px;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px 0 rgba(0,0,0,0.04);
  text-align: center;
}

section {
  margin-bottom: 32px;
}

h2 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 12px;
}

p {
  font-size: 18px;
  color: #444;
  margin-bottom: 18px;
}