:root {
  --bg: #fdfcfb;
  --text: #232323;
  --muted: #666;
  --accent: #2a6f6f;
  --border: #e4e0da;
  --max-width: 700px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 1.5rem;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
}

header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 0 1rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
}

header p.tagline {
  margin: 0 0 1rem;
  color: var(--muted);
}

nav a {
  margin-right: 1.25rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

nav a:hover {
  text-decoration: underline;
}

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

h2 {
  margin-top: 2.5rem;
}

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

.post-list li {
  margin-bottom: 1.25rem;
}

.post-date {
  color: var(--muted);
  font-size: 0.9rem;
  display: block;
}

footer {
  max-width: var(--max-width);
  margin: 3rem auto 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}