:root {
  color-scheme: light dark;
  --paper: #f7f9f5;
  --ink: #17241c;
  --accent: #245c42;
  --rule: #cdd8cf;
  font-family: system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #142019;
    --ink: #ebf3ec;
    --accent: #a3dfbc;
    --rule: #43564a;
  }
}

body {
  margin: 0;
  line-height: 1.65;
}

main {
  max-inline-size: 42rem;
  margin-inline: auto;
  padding: clamp(2rem, 7vw, 5rem) clamp(1.25rem, 5vw, 2rem);
}

.brand {
  color: var(--accent);
  font-weight: 700;
}

h1, h2 {
  line-height: 1.2;
  margin-block: 0 0.75rem;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.25rem);
  letter-spacing: -0.035em;
}

h2 {
  font-size: 1.3rem;
}

section {
  border-block-start: 1px solid var(--rule);
  margin-block-start: 1.75rem;
  padding-block-start: 1.75rem;
}

p {
  margin-block: 0 0.9rem;
}

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