:root {
  --serif: Palatino, Palatino Linotype, Palatino LT STD, Book Antiqua, Georgia,
    serif;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas,
    Liberation Mono, monospace;

  --background-color: white;
  --text-color: #3f3e3d;
  --text-dim-color: #585858;
  --text-muted-color: gray;
  --box-background-color: #fafafa;
  --box-border-color: gainsboro;
  --code-background-color: whitesmoke;
  --table-border-color: #e8e8e8;

  --token-comment: #6e7781;
  --token-punctuation: #24292f;
  --token-property: #0550ae;
  --token-string: #0a3069;
  --token-operator: #0550ae;
  --token-keyword: #cf222e;
  --token-function: #8250df;
  --token-variable: #0a3069;
  --token-inserted: green;
  --token-deleted: red;
}

[data-theme="dark"] {
  --background-color: #1e1e1e;
  --text-color: white;
  --text-muted-color: gray;
  --text-dim-color: #bababa;
  --box-background-color: #171717;
  --box-border-color: #111111;
  --code-background-color: #171717;
  --table-border-color: #111111;

  --token-comment: #8b949e;
  --token-punctuation: #c9d1d9;
  --token-property: #79c0ff;
  --token-string: #a5d6ff;
  --token-operator: #a5d6ff;
  --token-keyword: #a5d6ff;
  --token-function: #d2a8ff;
  --token-variable: #a8daff;
}

* {
  box-sizing: border-box;
}

body {
  font: 14pt/2 var(--serif);
  color: var(--text-color);
  background-color: var(--background-color);
  max-width: 700px;
  margin: 5rem auto;
  padding: 1rem;
}

h1 {
  margin: 0;
}

h2,
h3 {
  margin-top: 5rem;
}

h2 a,
h3 a {
  text-decoration: none;
}

h2 a:hover,
h3 a:hover {
  text-decoration: underline;
}

a {
  color: inherit;
}

time {
  color: var(--text-muted-color);
}

aside,
pre code {
  display: block;
  padding: 1rem;
  margin: 1rem 0;
  border-radius: 8px;
  background: var(--box-background-color);
  border: solid 1px var(--box-border-color);
}

aside {
  text-align: left;
  font: 12pt/1.8 var(--sans);
  color: var(--text-dim-color);
}

aside > :first-child {
  margin-top: 0;
}

aside > :last-child {
  margin-bottom: 0;
}

aside code {
  background-color: var(--background-color);
}

pre code {
  overflow-x: auto;
}

code {
  border-radius: 4px;
  font: 0.8em/1.8 var(--mono);
  background: var(--code-background-color);
  border: solid 1px var(--box-border-color);
  padding: 0 2px;
}

code mark {
  background: transparent;
  color: inherit;
}

header,
footer {
  margin: 4rem 0;
  text-align: center;
}

header p {
  color: var(--text-muted-color);
  max-width: 75%;
  margin: 0 auto;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  color: var(--text-dim-color);
}

nav a {
  text-decoration: none;
  opacity: 0.5;
}

nav a:hover {
  opacity: 1;
}

figure {
  margin-left: 0;
  margin-right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

figcaption {
  font: 1rem/1.8 var(--sans);
  text-align: center;
  color: var(--text-muted-color);
}

* + figcaption {
  margin-top: 1rem;
}

figcaption:first-child {
  margin-bottom: 1rem;
}

strong {
  font-weight: 600;
}

img, video {
  max-width: 100%;
}

table {
  font-size: 12pt;
  font-family: var(--sans);
  border-collapse: collapse;
  width: 100%;
}

th {
  font-weight: 500;
  text-align: left;
}

tbody tr {
  border-top: solid 1px var(--table-border-color);
}

td,
th {
  padding: 0.5em;
}

td:first-child,
th:first-child {
  padding-left: 0;
}

td:last-child,
th:last-child {
  padding-right: 0;
}

kbd {
  border-radius: 4px;
  font-size: 12pt;
  padding: 0 4px;
  border: solid 1px var(--box-border-color);
}

/* These elements need vertical breathing space */
table,
figure,
details,
aside,
iframe {
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.toggle-theme {
  cursor: pointer;
  opacity: 0.5;
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
}

.toggle-theme:hover,
.toggle-theme:focus {
  opacity: 1;
}

[data-theme="light"] .toggle-light,
[data-theme="dark"] .toggle-dark {
  display: none;
}

.highlight-line {
  opacity: 0.5;
}

.highlight-line-active {
  opacity: 1;
}

.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: var(--token-comment);
}
.token.punctuation {
  color: var(--token-punctuation);
}
.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
  color: var(--token-property);
}
.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: var(--token-string);
}
.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string {
  color: var(--token-operator);
}
.token.atrule,
.token.attr-value,
.token.keyword {
  color: var(--token-keyword);
}
.token.function {
  color: var(--token-function);
}
.token.regex,
.token.important,
.token.variable {
  color: var(--token-variable);
}
.token.important,
.token.bold {
  font-weight: bold;
}
.token.italic {
  font-style: italic;
}

.token.prefix.inserted {
  color: #15b24c;
}

.token.prefix.deleted {
  color: #b21515;
}

.token.unchanged {
  opacity: 0.5;
}

/* Prevent the nav from overlapping with content on smaller devices */
@media only screen and (max-width: 1000px) {
  nav {
    position: absolute;
  }
}

/* Top level images should be centered */
body > p > img {
  display: block;
  margin: 0 auto;
}

details summary {
  font-weight: 600;
}

details p:last-child {
  margin-bottom: 0;
}