:root {
  --bg: #f4efe6;
  --ink: #23302c;
  --muted: #6b7a74;
  --accent: #2f5d50;
  --rule: #d9d0c1;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171c1a;
    --ink: #e8e3d8;
    --muted: #9aa69f;
    --accent: #8fc2b1;
    --rule: #2c3531;
  }
}
* { box-sizing: border-box; }
html { font-size: 17px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  line-height: 1.6;
}
.masthead {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 0;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--rule);
}
.brand {
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}
nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.2rem;
  font-size: 0.95rem;
}
nav a:hover, nav a[aria-current] { color: var(--accent); }
main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 3rem;
}
.intro h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0 0 1rem;
  font-weight: 600;
}
.intro p { color: var(--muted); margin: 0 0 0.8rem; }
.notes { margin-top: 3rem; }
.notes article {
  padding: 1.4rem 0;
  border-top: 1px solid var(--rule);
}
.notes time {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}
.notes h2 {
  font-size: 1.25rem;
  margin: 0.3rem 0 0.5rem;
  font-weight: 600;
}
.notes p { margin: 0; }
footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1rem 1rem 2.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.85rem;
}