:root {
  color-scheme: light;
  color: #17243a;
  background: #f7f9fc;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

* { box-sizing: border-box; }

body { margin: 0; }

a { color: #14549f; text-underline-offset: .2em; }

a:focus-visible { outline: 2px solid #14549f; outline-offset: .25rem; }

p, ul { margin: 0 0 1rem; }

h1, h2 { line-height: 1.2; }

h1 { margin: 0 0 .8rem; font-size: clamp(2.25rem, 7vw, 3.75rem); }

h2 { margin: 0 0 .65rem; font-size: 1.25rem; }

li + li { margin-top: .5rem; }

code { overflow-wrap: anywhere; }

.shell { width: min(100% - 2rem, 67rem); margin-inline: auto; }

.site-header { background: #fff; border-bottom: 1px solid #dce4ef; }

.nav, .footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1rem;
  padding-block: 1rem;
}

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

.home, .policy { padding-block: clamp(2rem, 6vw, 4rem); }

.intro { max-width: 46rem; }

.label { color: #355377; font-weight: 600; }

.lead { color: #304762; font-size: clamp(1.1rem, 2.8vw, 1.4rem); }

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-block: 2rem;
}

.features article {
  padding: 1.25rem;
  border: 1px solid #dce4ef;
  border-radius: .8rem;
  background: #fff;
}

.features p:last-child, .details p:last-child, .policy section p:last-child { margin-bottom: 0; }

.details { max-width: 46rem; }

.policy { max-width: 48rem; }

.policy section { margin-top: 1.75rem; }

.footer { color: #4b6079; border-top: 1px solid #dce4ef; font-size: .9rem; }

@media (max-width: 43rem) {
  .features { grid-template-columns: 1fr; }
}