:root {
  --ink: #1c2129;
  --muted: #5d6773;
  --line: #dfe4ea;
  --bg: #fbfcfd;
  --accent: #2f5d8a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 Georgia, "Times New Roman", serif;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

header.wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 19px;
  letter-spacing: 0.01em;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 16px;
  font-size: 15px;
}

nav a:hover { color: var(--accent); }

main.wrap { padding-top: 30px; padding-bottom: 40px; }

h1 {
  font-size: 27px;
  font-weight: normal;
  line-height: 1.3;
  margin: 0 0 16px;
}

h2 {
  font-size: 20px;
  font-weight: normal;
  margin: 30px 0 10px;
}

.lead { color: var(--muted); }

.post {
  padding-top: 22px;
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.post h2 { margin-top: 0; }

.meta {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 12px;
}

a { color: var(--accent); }

footer.wrap {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  padding-bottom: 34px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 520px) {
  nav a { margin: 0 14px 0 0; }
  header.wrap { display: block; }
  nav { margin-top: 8px; display: block; }
}