:root {
  color-scheme: dark;
  --bg: #0a0d16;
  --text: #f4f1e8;
  --muted: #9aa3b2;
  --accent: #72f2c0;
  --link: #72f2c0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

h1 {
  font-size: 2rem;
  margin: 0 0 0.25rem;
}

h2 {
  font-size: 1.25rem;
  margin: 1.75rem 0 0.5rem;
}

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

a {
  color: var(--link);
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

nav li { margin: 0.5rem 0; }

p { margin: 0.75rem 0; }

.back {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}