body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f5f5f5;
}

main {
  max-width: 700px;
  margin: 100px auto;
  padding: 40px;
  background: white;
  border-radius: 8px;
}

h1 {
  margin-top: 0;
}
.site-header {
  padding: 20px;
  background: white;
  border-bottom: 1px solid #eaeaea;
}

.logo-link img {
  height: 40px;
  width: auto;
}