:root {
  color-scheme: light;
  font:
    16px/1.6 system-ui,
    sans-serif;
  color: #17262a;
  background: #f6f8f7;
}
* {
  box-sizing: border-box;
}
body {
  max-width: 860px;
  margin: auto;
  padding: 24px;
}
header,
main,
footer {
  background: white;
  padding: 24px;
  border: 1px solid #dce5e2;
}
header {
  border-radius: 16px 16px 0 0;
}
main {
  border-top: 0;
  border-bottom: 0;
}
footer {
  border-radius: 0 0 16px 16px;
  color: #52636a;
  font-size: 0.9rem;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}
a {
  color: #176b61;
}
h1,
h2 {
  line-height: 1.2;
}
h2 {
  margin-top: 2rem;
}
.version {
  background: #e9f4f1;
  border-left: 4px solid #176b61;
  padding: 12px 16px;
}
.language {
  border-top: 1px solid #dce5e2;
  margin-top: 2.5rem;
  padding-top: 1rem;
}
@media (max-width: 600px) {
  body {
    padding: 8px;
  }
  header,
  main,
  footer {
    padding: 18px;
  }
}