:root {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #131936;
  background: #f5f7fb;
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.65; }
a { color: #244a8f; text-underline-offset: 3px; }
a:hover, a:focus-visible { color: #c25400; }
.site-header { background: #131936; color: #fff; }
.site-header__inner, .site-footer__inner { max-width: 960px; margin: auto; padding: 18px 24px; }
.site-header__inner, .site-footer__inner, .site-footer nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.brand { color: #fff; font-size: 19px; font-weight: 900; letter-spacing: .02em; text-decoration: none; }
.brand span { color: #ff7a18; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 16px; }
.site-header nav a { color: #fff; }
main { max-width: 960px; margin: 32px auto; padding: 36px clamp(20px, 5vw, 56px); background: #fff; border: 1px solid #e2e8f0; border-radius: 18px; box-shadow: 0 10px 30px #1319360d; }
h1 { font-size: clamp(30px, 5vw, 42px); line-height: 1.15; margin: 0 0 8px; }
h2 { font-size: 21px; line-height: 1.3; margin: 32px 0 8px; }
p, li { max-width: 78ch; }
ul { padding-left: 24px; }
.updated { color: #64748b; margin-top: 0; }
.summary { font-size: 18px; color: #35445e; }
.site-footer { border-top: 1px solid #dce3ed; color: #64748b; font-size: 14px; }
@media (max-width: 640px) {
  main { margin: 0; border: 0; border-radius: 0; box-shadow: none; }
  .site-header__inner, .site-footer__inner { padding: 16px 20px; }
}