:root {
  --text: black;
  --background: #f4fcd9;
  --background2: #bb9981;
  --titles: #534340;
  --secondary: #c5d8a4;
  --tertiary: #4d3c34;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  margin: 2em 4em 2em 4em;
  font-size: 120%;
  line-height: 130%;
  background-color: var(--background);
  color: var(--text);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: bold;
  line-height: 100%;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: var(--titles);
}

h1 {
  font-size: 2em;
}
h2 {
  font-size: 1.8em;
}
h3 {
  font-size: 1.6em;
}
h4 {
  font-size: 1.4em;
}
h5 {
  font-size: 1.2em;
}
h6 {
  font-size: 1em;
}

.MathJax {
  color: var(--tertiary);
}
pre,
blockquote,
table,
ul,
ol,
dl {
  margin-top: 1em;
  margin-bottom: 1em;
  color: var(--text);
}

p ~ ul {
  margin-top: 0;
}

p {
  margin-bottom: 0;
}

ul ul,
ul ol,
ol ol,
ol ul {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}

li {
  margin: 0.3em auto;
}

ul {
  margin-left: 2em;
  padding-left: 0;
}

dt {
  font-weight: bold;
}

img {
  border: none;
  max-width: 100%;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

pre {
  background-color: var(--background2);
  font-family: Monaco, 'Courier New', 'DejaVu Sans Mono',
    'Bitstream Vera Sans Mono', monospace;
  font-size: 0.8em;
  padding: 1em 0 1em 2em;
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.25), 0 5px 5px rgba(0, 0, 0, 0.22);
}

pre > h1 {
  all: initial;
  font-size: 1.2em;
  color: var(--secondary);
}

p > a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.7em;
  padding: 3px 6px;
  background-color: var(--secondary);
  text-transform: uppercase;
  font-weight: bold;
}

p > a:hover {
  color: var(--text);
  background-color: var(--secondary);
}

li > a {
  color: var(--text);
  text-decoration: none;
  /* text-decoration-style: underline; */
  /* text-decoration-color: var(--secondary); */
  font-weight: bold;
  transition-property: all;
  transition-duration: 0.3s;
}

li > a:hover {
  color: var(--secondary);
}

blockquote {
  color: var(--text);
  font-size: 0.8em;
  /* line-height: 50%; */
  padding: 0.8em;
  background-color: var(--background2);
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.25), 0 5px 5px rgba(0, 0, 0, 0.22);
}

th,
td {
  border: 1px solid black;
  padding: 0.3em;
}

th {
  background-color: var(--secondary);
}

hr {
  border: none;
  border-top: 1px solid black;
  width: 100%;
}

del {
  text-decoration: line-through;
  color: #777777;
}

.toc li {
  list-style-type: none;
}

.todo {
  font-weight: bold;
  background-color: var(--secondary);
  color: white;
  font-size: 0.8em;
  padding: 3px 6px;
  border-radius: 3px;
}

.justleft {
  text-align: left;
}
.justright {
  text-align: right;
}
.justcenter {
  text-align: center;
}

.center {
  margin-left: auto;
  margin-right: auto;
}

.tag {
  background-color: #eeeeee;
  font-family: monospace;
  padding: 2px;
}

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

/* classes for items of todo lists */

.rejected {
  /* list-style: none; */
  background-image: url(data:image/png;base64,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);
  background-repeat: no-repeat;
  background-position: 0 0.2em;
  padding-left: 1.5em;
}
.done0 {
  /* list-style: none; */
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAAA7SURBVCiR7dMxEgAgCANBI3yVRzF5KxNbW6wsuH7LQ2YKQK1mkswBVERYF5Os3UV3gwd/jF2SkXy66gAZkxS6BniubAAAAABJRU5ErkJggg==);
  background-repeat: no-repeat;
  background-position: 0 0.2em;
  padding-left: 1.5em;
}
.done1 {
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAABtSURBVCiR1ZO7DYAwDER9BDmTeZQMFXmUbGYpOjrEryA0wOvO8itOslFrJYAug5BMM4BeSkmjsrv3aVTa8p48Xw1JSkSsWVUFwD05IqS1tmYzk5zzae9jnVVVzGyXb8sALjse+euRkEzu/uirFomVIdDGOLjuAAAAAElFTkSuQmCC);
  background-repeat: no-repeat;
  background-position: 0 0.15em;
  padding-left: 1.5em;
}
.done2 {
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAAB1SURBVCiRzdO5DcAgDAVQGxjAYgTvxlDIu1FTIRYAp8qlFISkSH7l5kk+ZIwxKiI2mIyqWoeILYRgZ7GINDOLjnmF3VqklKCUMgTee2DmM661Qs55iI3Zm/1u5h9sm4ig9z4ERHTFzLyd4G4+nFlVrYg8+qoF/c0kdpeMsmcAAAAASUVORK5CYII=);
  background-repeat: no-repeat;
  background-position: 0 0.15em;
  padding-left: 1.5em;
}
.done3 {
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAYAAAA71pVKAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAAxQAAAMUBHc26qAAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAABoSURBVCiR7dOxDcAgDATA/0DtUdiKoZC3YhLkHjkVKF3idJHiztKfvrHZWnOSE8Fx95RJzlprimJVnXktvXeY2S0SEZRSAAAbmxnGGKH2I5T+8VfxPhIReQSuuY3XyYWa3T2p6quvOgGrvSFGlewuUAAAAABJRU5ErkJggg==);
  background-repeat: no-repeat;
  background-position: 0 0.15em;
  padding-left: 1.5em;
}
.done4 {
  background-image: url(data:image/png;base64,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);
  background-repeat: no-repeat;
  background-position: 0 0.15em;
  padding-left: 1.5em;
}

code {
  font-family: Monaco, 'Courier New', 'DejaVu Sans Mono',
    'Bitstream Vera Sans Mono', monospace;
  -webkit-border-radius: 1px;
  -moz-border-radius: 1px;
  border-radius: 1px;
  -moz-background-clip: padding;
  -webkit-background-clip: padding-box;
  background-clip: padding-box;
  padding: 0px 3px;
  display: inline-block;
  color: #52595d;
  border: 1px solid #ccc;
  background-color: #f9f9f9;
}