:root {
  color: #17191d;
  background: #f7f8fa;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.65;
}

body {
  margin: 0;
  padding: 40px 20px 64px;
}

main {
  max-width: 720px;
  margin: 0 auto;
}

a {
  color: #0f766e;
}

.back {
  display: inline-block;
  margin-bottom: 24px;
  font-weight: 600;
  text-decoration: none;
}

h1 {
  margin: 0 0 4px;
  font-size: 30px;
  line-height: 1.25;
}

.updated {
  margin: 0 0 32px;
  color: #69707d;
  font-size: 14px;
}

h2 {
  margin: 32px 0 8px;
  font-size: 19px;
}

p,
li {
  color: #3d4148;
}

footer {
  max-width: 720px;
  margin: 48px auto 0;
  padding-top: 20px;
  border-top: 1px solid #e4e7ec;
  color: #69707d;
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}