:root {
  --ink: #25316d;
  --green: #007a33;
  --paper: #f7f9f7;
  --muted: #5d6678;
  --line: rgba(37, 49, 109, .14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

header, main, footer { width: min(760px, calc(100% - 40px)); margin-inline: auto; }
header { padding: 28px 0; border-bottom: 1px solid var(--line); }
header a { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); font-weight: 780; text-decoration: none; }
header img { width: 48px; height: auto; }
main { min-height: calc(100vh - 190px); padding: 58px 0 80px; }
h1 { margin: 0 0 24px; font-size: clamp(2.4rem, 7vw, 4.4rem); line-height: 1; letter-spacing: -.05em; }
h2 { margin: 36px 0 8px; font-size: 1.25rem; }
p, li { color: var(--muted); }
a { color: var(--green); }
.lede { font-size: 1.15rem; }
.back { display: inline-block; margin-top: 30px; font-weight: 700; }
footer { padding: 24px 0 32px; border-top: 1px solid var(--line); color: var(--muted); font-size: .82rem; }