:root {
  --bg: #faf8f5;
  --ink: #2b2b28;
  --muted: #6b6a64;
  --accent: #4a5d52;
  --line: #e2ddd3;
  --max-width: 640px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, 'Iowan Old Style', 'Palatino Linotype', serif;
  line-height: 1.65;
  font-size: 19px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header.site {
  margin-bottom: 40px;
}

header.site a.brand {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
}

h1.title {
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 8px;
}

p.subtitle {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  color: var(--muted);
  margin: 0 0 24px;
  font-style: italic;
}

p.meta {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

article p {
  margin: 0 0 22px;
}

hr.div {
  border: none;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}

.footer-cta {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  color: var(--muted);
}

.footer-cta a {
  color: var(--accent);
}

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

.index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.index-list li {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.index-list li:last-child {
  border-bottom: none;
}

.index-list a.letter-title {
  font-size: 22px;
  text-decoration: none;
  color: var(--ink);
  display: block;
  margin-bottom: 4px;
}

.index-list a.letter-title:hover {
  color: var(--accent);
}

.index-list p.letter-sub {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  color: var(--muted);
  margin: 0 0 6px;
  font-style: italic;
}

.index-list p.letter-date {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.back-link {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  display: inline-block;
  margin-top: 32px;
}