:root {
  color-scheme: light;
  --blue: #0077cc;
  --dark: #18212b;
  --muted: #56616d;
  --border: #dbe4ec;
  --surface: #f6f9fc;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--dark);
  background: #ffffff;
  font-family: Poppins, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

header,
footer {
  background: #111827;
  color: #ffffff;
}

header {
  padding: 1rem 1.25rem;
}

header nav,
main,
footer div {
  width: min(100% - 2rem, 880px);
  margin-inline: auto;
}

header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

header a,
footer a {
  color: #ffffff;
}

.brand {
  font-weight: 700;
  text-decoration: none;
}

main {
  padding: 3rem 0 4rem;
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  color: var(--blue);
  font-size: clamp(2rem, 7vw, 3.25rem);
  margin-bottom: 0.5rem;
}

h2 {
  margin-top: 2.5rem;
}

a {
  color: #005ea8;
}

.effective-date,
.summary {
  color: var(--muted);
}

.summary {
  background: var(--surface);
  border-left: 4px solid var(--blue);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
}

li + li {
  margin-top: 0.5rem;
}

footer {
  padding: 1.5rem 1.25rem;
  text-align: center;
}

footer p {
  margin: 0.4rem 0;
}

@media (max-width: 560px) {
  header nav {
    align-items: flex-start;
    flex-direction: column;
  }
}