:root {
  --text: #1a1a1a;
  --muted: #555;
  --accent: #0a4d8c;
  --bg: #ffffff;
  --panel: #f4f7fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 1.0625rem;
}

.site-header {
  border-bottom: 1px solid #e2e6ea;
  padding: 1rem 1.25rem;
}

.site-title {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Arial, sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.site-title a {
  color: var(--text);
  text-decoration: none;
}

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

h1 {
  font-size: 2.1rem;
  line-height: 1.25;
  margin: 0 0 0.75rem;
}

.lede {
  font-size: 1.2rem;
  color: var(--muted);
  font-style: italic;
  margin-top: 0;
}

h2 {
  font-size: 1.55rem;
  line-height: 1.3;
  margin: 2.5rem 0 0.75rem;
  color: var(--accent);
}

h3 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.5rem;
}

p { margin: 0 0 1.1rem; }

.key-takeaways {
  background: var(--panel);
  border-left: 4px solid var(--accent);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
}

.key-takeaways h3 {
  margin-top: 0;
  letter-spacing: 0.05em;
}

.key-takeaways ul {
  margin: 0;
  padding-left: 1.2rem;
}

.key-takeaways li { margin-bottom: 0.5rem; }

.site-footer {
  border-top: 1px solid #e2e6ea;
  padding: 1.25rem;
  text-align: center;
  color: var(--muted);
  font-family: -apple-system, "Segoe UI", Arial, sans-serif;
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.3rem; }
  body { font-size: 1rem; }
}