:root {
  --fg: #23252a;
  --dim: #797f88;
  --rule: #e6e7ea;
  --paper: #fcfcfd;
  --link: #34506e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--fg);
  font: 17px/1.7 Georgia, "Iowan Old Style", "Times New Roman", serif;
}

.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 22px;
}

header.top {
  padding: 44px 0 26px;
  border-bottom: 1px solid var(--rule);
}

header.top h1 {
  margin: 0 0 6px;
  font-size: 24px;
  letter-spacing: -0.01em;
}

header.top p {
  margin: 0;
  color: var(--dim);
  font-size: 15px;
}

nav.links {
  margin-top: 16px;
  font-size: 15px;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
}

nav.links a {
  color: var(--link);
  text-decoration: none;
  margin-right: 16px;
}

nav.links a:hover { text-decoration: underline; }

article {
  padding: 30px 0;
  border-bottom: 1px solid var(--rule);
}

article:last-of-type { border-bottom: 0; }

article h2 {
  margin: 0 0 4px;
  font-size: 20px;
  line-height: 1.35;
}

article .meta {
  margin: 0 0 12px;
  color: var(--dim);
  font-size: 14px;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
}

article p { margin: 0 0 12px; }
article p:last-child { margin-bottom: 0; }

code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 14px;
  background: #f0f1f3;
  padding: 1px 5px;
  border-radius: 3px;
}

pre {
  background: #f0f1f3;
  padding: 12px 14px;
  border-radius: 5px;
  overflow-x: auto;
  font-size: 14px;
  line-height: 1.5;
}

pre code { background: none; padding: 0; }

.body-text p { margin: 0 0 14px; }

footer.bottom {
  border-top: 1px solid var(--rule);
  margin-top: 34px;
  padding: 20px 0 46px;
  color: var(--dim);
  font-size: 14px;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
}

.notfound { padding: 70px 0 50px; }
.notfound h1 { font-size: 46px; margin: 0 0 10px; }
.notfound a { color: var(--link); }