:root {
  --brand-green: #549C17;
  --brand-bg: #f5faf0;
  --text: #1e293b;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--brand-bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, sans-serif; }
main { max-width: 64ch; margin: 4rem auto; padding: 0 1.5rem; }
h1 { font-size: 2rem; color: var(--brand-green); margin-bottom: 1rem; }
p { margin-bottom: 1rem; }
a { color: var(--brand-green); }