:root {
  --ink: #101a17;
  --paper: #f2f7f5;
  --accent: #3f9e7c;
  --muted: #7d8f88;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 3rem 1.5rem 4rem;
  background: var(--paper);
  color: var(--ink);
  font-family: "Charter", "Bitstream Charter", Cambria, Georgia, serif;
  line-height: 1.65;
}

main { max-width: 38rem; margin: 0 auto; }

h1 { font-size: 2rem; margin: 0 0 .25rem; letter-spacing: -.01em; }

h2 { font-size: 1.05rem; margin: 2.25rem 0 .4rem; color: var(--accent); }

p { margin: 0 0 .8rem; }

.tagline { color: var(--muted); margin-bottom: 2.5rem; }

nav { margin-top: 3rem; border-top: 1px solid var(--muted); padding-top: 1rem; }

nav a {
  color: var(--accent);
  margin-right: 1rem;
  text-decoration: none;
  border-radius: 2px;
}

nav a:hover { text-decoration: underline; }

footer { margin-top: 2rem; color: var(--muted); font-size: .85rem; }

@media (prefers-color-scheme: dark) {
  body { background: var(--ink); color: var(--paper); }
}