@font-face {
  font-family: "Commit Mono";
  font-weight: 400;
  font-style: normal;
  src:
    url("./fonts/CommitMono-400-Regular.otf") format("opentype"),
    url("./fonts/TTF/CommitMono-400-Regular.ttf") format("truetype");
}

@font-face {
  font-family: "Commit Mono";
  font-weight: 700;
  font-style: normal;
  src:
    url("./fonts/CommitMono-700-Regular.otf") format("opentype"),
    url("./fonts/TTF/CommitMono-700-Regular.ttf") format("truetype");
}

@font-face {
  font-family: "Commit Mono";
  font-weight: 400;
  font-style: italic;
  src:
    url("./fonts/CommitMono-400-Italic.otf") format("opentype"),
    url("./fonts/TTF/CommitMono-400-Italic.ttf") format("truetype");
}

@font-face {
  font-family: "Commit Mono";
  font-weight: 700;
  font-style: italic;
  src:
    url("./fonts/CommitMono-700-Italic.otf") format("opentype"),
    url("./fonts/TTF/CommitMono-700-Italic.ttf") format("truetype");
}

@charset "UTF-8";
:root {
  --bg-color: #faf9f6;
  --main: 70%;
  --side: 30%;
  --indent: 5%;
  --code-indent: 2.5%;
  --gutter: 5%; /* space between main and margin */
  --blockquote-extra: 4%; /* extra pull to clear blockquote */
  font-family: "Commit Mono", monospace;
}
html {
  font-size: 16px;
}

body {
  width: 87.5%;
  margin-left: auto;
  margin-right: auto;
  padding-left: 12.5%;
  background-color: var(--bg-color);
  color: #111;
  max-width: 1400px;
  counter-reset: sidenote-counter;
}

h1 {
  font-weight: 400;
  margin-top: 4rem;
  margin-bottom: 1.5rem;
  font-size: 3.2rem;
  line-height: 1;
}

h2 {
  font-style: italic;
  font-weight: 400;
  margin-top: 2.1rem;
  margin-bottom: 1.4rem;
  font-size: 2.2rem;
  line-height: 1;
}

h3 {
  font-style: italic;
  font-weight: 400;
  font-size: 1.7rem;
  margin-top: 2rem;
  margin-bottom: 1.4rem;
  line-height: 1;
}

hr {
  display: block;
  height: 1px;
  width: var(--main);
  border: 0;
  border-top: 1px solid #ccc;
  margin: 1em 0;
  padding: 0;
}

p.subtitle {
  font-style: italic;
  margin-top: 1rem;
  margin-bottom: 1rem;
  font-size: 1.8rem;
  display: block;
  line-height: 1;
}

.danger {
  color: red;
}

article {
  padding: 5rem 0rem;
}

section {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

p,
dl,
ol,
ul {
  font-size: 1.4rem;
  line-height: 2rem;
}

p {
  margin-top: 1.4rem;
  margin-bottom: 1.4rem;
  padding-right: 0;
  vertical-align: baseline;
}

/* Chapter Epigraphs */
div.epigraph {
  margin: 5em 0;
}

div.epigraph > blockquote {
  margin-top: 3em;
  margin-bottom: 3em;
}

div.epigraph > blockquote,
div.epigraph > blockquote > p {
  font-style: italic;
}

div.epigraph > blockquote > footer {
  font-style: normal;
}

div.epigraph > blockquote > footer > cite {
  font-style: italic;
}
/* end chapter epigraphs styles */

blockquote {
  font-size: 1.4rem;
}

blockquote p {
  width: var(--main);
  margin-right: 40px;
}

blockquote footer {
  width: var(--main);
  font-size: 1.1rem;
  text-align: right;
}

section > p,
section > footer,
section > table {
  width: var(--main);
}

/* 50 + 5 == 55, to be the same width as paragraph */
section > dl,
section > ol,
section > ul {
  width: calc(var(--main) + var(--indent));
  -webkit-padding-start: var(--indent);
}

dt:not(:first-child),
li:not(:first-child) {
  margin-top: 0.25rem;
}

figure {
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
  max-width: var(--main);
  -webkit-margin-start: 0;
  -webkit-margin-end: 0;
  margin: 0 0 3em 0;
}

figcaption {
  float: right;
  clear: right;
  margin-top: 0;
  margin-bottom: 0;
  font-size: 1.1rem;
  line-height: 1.6;
  vertical-align: baseline;
  position: relative;
  max-width: var(--side);
}

figure.fullwidth figcaption {
  margin-right: var(--side);
}

a:link,
a:visited {
  color: inherit;
  text-underline-offset: 0.1em;
  text-decoration-thickness: 0.05em;
}

/* Sidenotes, margin notes, figures, captions */
img {
  max-width: 100%;
}

.sidenote,
.marginnote {
  float: right;
  clear: right;
  margin-right: calc(-1 * (var(--side) + var(--gutter)));
  width: var(--side);
  margin-top: 0.3rem;
  margin-bottom: 0;
  font-size: 1.1rem;
  line-height: 1.3;
  vertical-align: baseline;
  position: relative;
}

.sidenote-number {
  counter-increment: sidenote-counter;
}

.sidenote-number:after,
.sidenote:before {
  position: relative;
  vertical-align: baseline;
}

.sidenote-number:after {
  content: counter(sidenote-counter);
  font-size: 1rem;
  top: -0.5rem;
  left: 0.1rem;
}

.sidenote:before {
  content: counter(sidenote-counter) " ";
  font-size: 1rem;
  top: -0.5rem;
}

blockquote .sidenote,
blockquote .marginnote {
  margin-right: calc(
    -1 * (var(--side) + var(--gutter) + var(--blockquote-extra))
  );
  min-width: calc(var(--side) + var(--blockquote-extra));
  text-align: left;
}

div.fullwidth,
table.fullwidth {
  width: 100%;
}

div.table-wrapper {
  overflow-x: auto;
}

code,
pre > code {
  font-size: 1rem;
  line-height: 1.42;
  -webkit-text-size-adjust: 100%; /* Prevent adjustments of font size after orientation changes in iOS. See https://github.com/edwardtufte/tufte-css/issues/81#issuecomment-261953409 */
}

.sans > code {
  font-size: 1.2rem;
}

h1 > code,
h2 > code,
h3 > code {
  font-size: 0.8em;
}

.marginnote > code,
.sidenote > code {
  font-size: 1rem;
}

pre > code {
  font-size: 0.9rem;
  width: 52.5%;
  margin-left: 2.5%;
  overflow-x: auto;
  display: block;
}

pre.fullwidth > code {
  width: 90%;
}

.fullwidth {
  max-width: 90%;
  clear: both;
}

span.newthought {
  font-variant: small-caps;
  font-size: 1.2em;
}

input.margin-toggle {
  display: none;
}

label.sidenote-number {
  display: inline-block;
  max-height: 2rem; /* should be less than or equal to paragraph line-height */
}

label.margin-toggle:not(.sidenote-number) {
  display: none;
}

.iframe-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  padding-top: 25px;
  height: 0;
}

.iframe-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

@media (max-width: 760px) {
  body {
    width: 84%;
    padding-left: 8%;
    padding-right: 8%;
  }

  hr,
  section > p,
  section > footer,
  section > table {
    width: 100%;
  }

  pre > code {
    width: 97%;
  }

  section > dl,
  section > ol,
  section > ul {
    width: 90%;
  }

  figure {
    max-width: 90%;
  }

  figcaption,
  figure.fullwidth figcaption {
    margin-right: 0%;
    max-width: none;
  }

  blockquote {
    margin-left: 1.5em;
    margin-right: 0em;
  }

  blockquote p,
  blockquote footer {
    width: 100%;
  }

  label.margin-toggle:not(.sidenote-number) {
    display: inline;
  }

  .sidenote,
  .marginnote {
    display: none;
  }

  .margin-toggle:checked + .sidenote,
  .margin-toggle:checked + .marginnote {
    display: block;
    float: left;
    left: 1rem;
    clear: both;
    width: 95%;
    margin: 1rem 2.5%;
    vertical-align: baseline;
    position: relative;
  }

  label {
    cursor: pointer;
  }

  div.table-wrapper,
  table {
    width: 85%;
  }

  img {
    width: 100%;
  }
}