body {
  margin: 0;
  background: #f4f8fa;
  color: #163346;
  font: 16px/1.6 system-ui, sans-serif;
}
main {
  max-width: 720px;
  margin: 48px auto;
  padding: 32px;
  background: white;
  border-radius: 16px;
}
h1 { font-size: 28px; line-height: 1.2; }
h2 { font-size: 19px; margin-top: 28px; }
.brand { font-size: 14px; font-weight: 750; letter-spacing: .1em; color: #08796c; }
.date { color: #536978; font-size: 14px; }
a { color: #08796c; }
@media (max-width: 760px) {
  main { margin: 16px; padding: 24px; }
}