:root {
  color-scheme: dark;
  --bg: #12161f;
  --text: #eef1f7;
  --muted: #a9b1c1;
  --accent: #6ef2c0;
  --line: #2a3142;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  line-height: 1.5;
}

main,
footer {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1.25rem;
}

.mark {
  margin: 0;
  color: var(--accent);
  font-family: ui-sans-serif, system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

h1 {
  margin: 0.25rem 0 1.5rem;
  font-size: 2.5rem;
  font-weight: 500;
}

#status {
  color: var(--muted);
}

.course {
  border-top: 1px solid var(--line);
  padding: 1.25rem 0;
}

.course h2 {
  margin: 0 0 0.35rem;
  font-size: 1.4rem;
  font-weight: 500;
}

.summary {
  margin: 0;
  color: var(--muted);
}

.module {
  margin: 0.8rem 0 0;
}

.module h3 {
  margin: 0;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 1rem;
}

.module ul {
  margin: 0.25rem 0 0;
  padding-left: 1.1rem;
}

footer {
  padding-top: 0;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.85rem;
}