:root {
  --bg:     #fbfbfa;
  --fg:     #24282c;
  --dim:    #767c82;
  --accent: #3f7d3a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 4rem 1.5rem;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.65 ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 40rem;
  margin: 0 auto;
}

h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.sub {
  margin: 0.35rem 0 0.9rem;
  color: var(--dim);
}

h2 {
  margin: 0 0 0.6rem;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--dim);
}

h2::before {
  content: "# ";
  color: var(--accent);
}

section {
  margin-top: 2.5rem;
}

p { margin: 0 0 0.6rem; }

dl {
  margin: 0;
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 0.3rem 1rem;
}

dt { color: var(--dim); }
dd { margin: 0; }

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

li::before {
  content: "- ";
  color: var(--dim);
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

a:hover {
  border-bottom-color: var(--accent);
}

@media (max-width: 30rem) {
  body { padding: 2.5rem 1.25rem; }
  dl { grid-template-columns: 1fr; gap: 0 0; }
  dt { margin-top: 0.5rem; }
}