:root {
  --bg: #ffffff;
  --text: #2e261f;
  --muted: #6f6f6f;
  --link: #1656cc;
  --link-hover: #0f3f99;
  --rule: #dedede;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  max-width: 680px;
  margin: 0 auto;
  padding: 6em 1.5em 8em;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

nav {
  margin: 0 0 2.8em;
  font-size: .88em;
  line-height: 1.4;
  color: var(--muted);
}

nav a,
nav span {
  margin-right: .85em;
}

nav span {
  color: var(--text);
}

h1 {
  margin: 0 0 1.1em;
  font-size: 2.05em;
  font-weight: normal;
  line-height: 1.12;
}

h2 {
  margin: 2.35em 0 .8em;
  font-size: 1.22em;
  font-weight: normal;
  line-height: 1.25;
  color: var(--text);
}

p,
ol,
ul {
  margin: 0 0 1.15em;
}

ol,
ul {
  padding-left: 1.35em;
}

li {
  margin: 0 0 .85em;
}

a {
  color: var(--link);
  text-decoration-thickness: .08em;
  text-underline-offset: .16em;
}

a:hover {
  color: var(--link-hover);
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.2em 0;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .84em;
  background: transparent;
  padding: 0;
  border-radius: 0;
}

.lede {
  font-size: 1.02em;
}

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

.nav {
  margin-top: 2em;
  color: var(--muted);
}

.fn-cb {
  display: none;
}

.fn-label {
  cursor: pointer;
  color: var(--link);
}

.fn-note {
  display: none;
  font-style: italic;
  color: var(--muted);
}

.fn-cb:checked ~ .fn-note {
  display: inline;
}

@media (max-width: 480px) {
  body {
    font-size: 17px;
    padding: 4em 1.25em 6em;
  }

  h1 {
    font-size: 1.75em;
  }

  h2 {
    font-size: 1.15em;
  }
}