:root {
  --kuro: #161514;
  --washi: #f2ede2;
  --manila: #cdbfa6;
  --shu: #d62828;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--washi);
  color: var(--kuro);
  font: 17px/1.6 Georgia, "Times New Roman", serif;
}

main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

header {
  border-bottom: 2px solid var(--kuro);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
}

header a { color: inherit; text-decoration: none; }

h1, h2, h3 { line-height: 1.25; }
h1 { font-size: 2.2rem; margin: 0 0 0.5rem; }
h2 { margin-top: 2.5rem; border-bottom: 1px solid var(--manila); padding-bottom: 0.25rem; }

a { color: var(--shu); }

.lead { font-size: 1.2rem; }

nav a { margin-right: 1.25rem; }

footer {
  margin-top: 3rem;
  border-top: 1px solid var(--manila);
  padding-top: 1rem;
  font-size: 0.9rem;
}