:root {
  --ink: #1a2332;
  --muted: #5a6a80;
  --brand: #0b3d62;
  --brand-2: #0a9e8f;
  --paper: #ffffff;
  --soft: #f4f7fa;
  --line: #e2e8f0;
  --quote: #eef9f7;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  line-height: 1.7;
  background: var(--paper);
  font-size: 18px;
}

a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--brand-2); }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: var(--brand);
  color: #fff;
  padding: 18px 0;
  border-bottom: 4px solid var(--brand-2);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-header a { color: #fff; text-decoration: none; }
.brand-name { font-size: 1.15rem; font-weight: bold; }
.brand-name span { color: var(--brand-2); }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: 0.95rem; }
.site-nav a:hover { color: var(--brand-2); }

/* Article */
main { padding: 40px 0 56px; }
.kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: var(--brand-2);
  font-weight: bold;
  margin: 0 0 8px;
}
h1 { font-size: 2.2rem; line-height: 1.2; margin: 0 0 8px; }
.standfirst { font-size: 1.15rem; color: var(--muted); margin: 0 0 8px; }
.meta-line { font-size: 0.85rem; color: var(--muted); margin: 0 0 28px; border-bottom: 1px solid var(--line); padding-bottom: 18px; }

h2 { font-size: 1.55rem; margin: 44px 0 12px; padding-top: 8px; }
h3 { font-size: 1.2rem; margin: 30px 0 8px; }
p { margin: 0 0 18px; }
ul, ol { margin: 0 0 18px; padding-left: 26px; }
li { margin-bottom: 8px; }
strong { font-weight: bold; }

/* Stat callout */
.stat-callout {
  background: var(--quote);
  border-left: 5px solid var(--brand-2);
  padding: 18px 22px;
  margin: 26px 0;
  font-size: 1.12rem;
  line-height: 1.6;
}
.stat-callout .src { display: block; font-size: 0.82rem; color: var(--muted); margin-top: 8px; }

/* Framework / numbered lists */
.framework { counter-reset: step; list-style: none; padding-left: 0; }
.framework li { counter-increment: step; padding-left: 46px; position: relative; margin-bottom: 14px; }
.framework li::before {
  content: counter(step);
  position: absolute; left: 0; top: 2px;
  width: 30px; height: 30px;
  background: var(--brand); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; font-weight: bold;
}

/* CTA */
.cta {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px 30px;
  margin: 44px 0 20px;
}
.cta h2 { margin: 0 0 12px; }
.cta p { margin: 0 0 14px; }

/* Related */
.related { border-top: 1px solid var(--line); margin-top: 44px; padding-top: 20px; }
.related h2 { margin-top: 0; }
.related ul { columns: 2; column-gap: 40px; }
@media (max-width: 600px) { .related ul { columns: 1; } }

/* Footer */
.site-footer {
  background: var(--soft);
  border-top: 1px solid var(--line);
  padding: 34px 0;
  font-size: 0.9rem;
  color: var(--muted);
}
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer h4 { color: var(--ink); margin: 0 0 10px; font-size: 1rem; }
.site-footer p { margin: 0 0 6px; }
.site-footer a { color: var(--brand); }

/* Hub index */
.pillar { margin-bottom: 40px; }
.pillar h2 { margin-top: 0; }
.pillar ul { list-style: none; padding-left: 0; }
.pillar li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.pillar li a { font-weight: bold; }
.pillar .kw { display: block; font-size: 0.85rem; color: var(--muted); }

@media (max-width: 600px) {
  body { font-size: 17px; }
  h1 { font-size: 1.7rem; }
}