:root {
  --paper: #fbf8f3;
  --ink: #1f1d1a;
  --muted: #5f5a52;
  --rule: #e6e0d6;
  --accent: #2e6a54;
  --panel: #f3eee5;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #151412;
    --ink: #ece7de;
    --muted: #a8a196;
    --rule: #2c2925;
    --accent: #8fd3b4;
    --panel: #1e1c19;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

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

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
}

header .brand {
  margin: 0 0 2.5rem;
  font-size: 0.95rem;
  color: var(--muted);
}

header .brand a {
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}

h1 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.9rem, 5vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.dated {
  margin: 0 0 2.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

h2 {
  margin: 2.75rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: 1.25rem;
  line-height: 1.3;
}

h3 {
  margin: 1.75rem 0 0.4rem;
  font-size: 1.02rem;
}

p,
ul,
ol {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-left: 1.3rem;
}

li {
  margin: 0.3rem 0;
}

a {
  color: var(--accent);
  text-underline-offset: 0.15em;
}

.summary {
  margin: 0 0 1rem;
  padding: 1.1rem 1.25rem;
  background: var(--panel);
  border-radius: 14px;
}

.summary ul {
  margin: 0;
}

.muted {
  color: var(--muted);
}

footer {
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.92rem;
}

footer a {
  margin-right: 1.1rem;
}