:root {
  color-scheme: light dark;
  font-family: system-ui, sans-serif;
  color: #18232d;
  background: #f9fafb;
  line-height: 1.65;
}

body { margin: 0; }
main { max-width: 42rem; padding: clamp(2rem, 7vw, 5rem) 1.25rem 2rem; margin: auto; }
header { margin-bottom: 2.25rem; }
h1, h2 { line-height: 1.2; }
h1 { font-size: clamp(2rem, 6vw, 3.25rem); margin: 0.2em 0; }
h2 { font-size: 1.2rem; margin: 0 0 0.5rem; }
section { margin: 1.75rem 0; }
p { margin: 0.5rem 0; }
li + li { margin-top: 0.4rem; }
.product, .intro, footer { color: #465667; }
.product { font-weight: 650; }
a { color: #064ea4; overflow-wrap: anywhere; text-underline-offset: 0.16em; }
footer { border-top: 1px solid #cfd7e0; padding-top: 1rem; margin-top: 2.5rem; font-size: 0.9rem; }

@media (prefers-color-scheme: dark) {
  :root { color: #eff3f9; background: #131b25; }
  .product, .intro, footer { color: #bbc8d7; }
  a { color: #95c8ff; }
  footer { border-color: #465667; }
}