:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #182126;
  background: #f5f8f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  line-height: 1.7;
}

header,
main,
footer {
  width: calc(100% - 40px);
  max-width: 760px;
  margin: 0 auto;
}

header {
  padding: 48px 0 28px;
  border-bottom: 1px solid #dce5e2;
}

main {
  padding: 12px 0 48px;
}

footer {
  padding: 24px 0 40px;
  border-top: 1px solid #dce5e2;
  color: #647178;
  font-size: 14px;
}

h1,
h2 {
  line-height: 1.3;
}

h1 {
  margin: 8px 0;
  font-size: 34px;
}

h2 {
  margin: 30px 0 8px;
  font-size: 20px;
}

p,
ul {
  margin: 8px 0;
}

.brand,
a {
  color: #008b8b;
}

.brand {
  font-weight: 700;
}

.meta,
.english {
  color: #647178;
}

.english {
  padding-top: 24px;
  border-top: 1px solid #dce5e2;
}

nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 16px;
}

a {
  text-underline-offset: 3px;
}

@media (max-width: 520px) {
  header,
  main,
  footer {
    width: calc(100% - 28px);
  }

  header {
    padding-top: 32px;
  }

  h1 {
    font-size: 29px;
  }
}