:root {
  color-scheme: dark;
  --bg: #101812;
  --surface: #17231a;
  --text: #f3f0e5;
  --muted: #b5b7ad;
  --accent: #e6b84f;
  --border: #344137;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

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

header,
main,
footer {
  width: min(100% - 2rem, 48rem);
  margin-inline: auto;
}

header {
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

main { padding-block: 3rem 4rem; }

h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.05;
}

h2 {
  margin-top: 2.25rem;
  font-size: 1.25rem;
}

p,
li { color: var(--muted); }

.effective { margin-top: 0; }

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
}