:root {
  --fg: #1c1c1c;
  --muted: #6b6b6b;
  --line: #e2e2e2;
  --bg: #fbfbf9;
  --accent: #2b5c8a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

header, main, footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 32px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  color: var(--fg);
}

nav a {
  margin-left: 18px;
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}

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

main { padding-top: 32px; padding-bottom: 48px; }

h1 {
  font-size: 30px;
  line-height: 1.2;
  margin: 0 0 16px;
}

h2 {
  font-size: 20px;
  margin: 36px 0 8px;
}

.lead {
  font-size: 19px;
  color: var(--muted);
}

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

.posts {
  list-style: none;
  padding: 0;
}

.posts li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.posts span, .date {
  color: var(--muted);
  font-size: 14px;
}

article { margin-bottom: 28px; }

footer {
  padding-top: 20px;
  padding-bottom: 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}