:root {
  --accent: #1a4d8f;
  --text: #111111;
  --muted: #444444;
  --border: #dddddd;
  --bg: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  font-size: 1.0625rem;
}

header,
main,
footer {
  max-width: 65ch;
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
}

header {
  padding-top: 2rem;
  padding-bottom: 0.5rem;
}

.brand {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.3;
  margin: 0.5rem 0 1.5rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2.5rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
}

ol,
ul {
  padding-left: 1.4rem;
  margin: 0 0 1rem;
}

li {
  margin-bottom: 0.75rem;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover,
a:focus {
  text-decoration-thickness: 2px;
}

strong {
  font-weight: 700;
}

.muted {
  color: var(--muted);
}

.price {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--muted);
}

footer nav {
  margin-bottom: 0.75rem;
}

footer nav a {
  margin-right: 1.25rem;
}

@media (max-width: 480px) {
  body {
    font-size: 1rem;
  }
  h1 {
    font-size: 1.5rem;
  }
}