@font-face {
  font-family:  'Maven Pro';
  font-display: swap;
  src:          local('Maven Pro'),
                url('../fonts/MavenPro/MavenPro-VariableFont_wght.ttf') format('truetype');
}

@font-face {
  font-family:  'Oxygen Mono';
  font-display: swap;
  src:          local('Oxygen Mono'),
                url('../fonts/OxygenMono/OxygenMono-Regular.ttf') format('truetype');
}

:root {
  --accent-a:   #008080;
  --accent-b:   #800000;
  --text:       #000000;
  --gradient:   linear-gradient(45deg, #800000 10%, #008080 90%);
  --background: #ffffff;
  --pre-bg:     #e8edf2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent-a:   #7acccc;
    --accent-b:   #ff0080;
    --text:       #ffffff;
    --gradient:   linear-gradient(45deg, #ff0080 10%, #7acccc 90%);
    --background: #222222;
    --pre-bg:     #403f3f;
  }
}

body {
  min-height:            100vh;
  background-color:      var(--background);
  font-family:           'Maven Pro';
  box-sizing:            border-box;
  padding:               2ch;
  display:               grid;
  grid-template-columns: 1fr 8rem 50rem 16rem 1fr;
  grid-template-rows:    1fr auto 1fr;
  justify-content:       center;
  align-items:           start;
  counter-reset:         sidenote-counter;
}

a,
a:visited,
main > label {
  color:           var(--accent-a);
  text-decoration: none;
}

main a:hover:not(nav a),
footer > a,
main > label:hover {
  color: var(--accent-b);
}

body > header {
  grid-row:           2;
  grid-column:        2;
  writing-mode:       sideways-rl;
  border-image:       var(--gradient) 1;
  border-right-color: var(--accent-a);
  border-right-style: solid;
  border-right-width: 5px;
  padding-bottom:     1rem;
}

body > header > a > h1 {  
  background:              var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color:                   var(--accent-b);
  font-size:               4rem;
  text-align:              left;
  height:                  fit-content;
}

body > main {
  grid-row:     2;
  grid-column:  3;
  padding-left: 1rem;
  line-height:  1.2;
  max-width:    50rem;
  align-self:   center;
  color:        var(--text);
  font-size:    1.2rem;
}

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

nav > footer {
  padding-top: 1ch;
  font-size:   1rem;
  color:       var(--accent-b);
}

input[type="checkbox"] {
  display: none;
}

#shownav + label {
  display:    block;
  width:      100%;
  text-align: right;
}

#shownav + label + nav {
  display:    none;
  text-align: center;
}

#shownav:checked + label + nav {
  display: block;
}

nav > ul {
  font-size: 2.4rem;
  color:     var(--accent-a);
}

label[for="shownav"]::before {
  content: "∨"
}

#shownav:checked + label[for="shownav"]::before {
  content: "∧"
}

#title,
#meta,
#abstract {
  text-align:     center;
  padding-top:    1rem;
  padding-bottom: 1rem;
}

#abstract {
  font-size:  1rem;
  font-style: italic;
}

.metainfo {
  font-size:  1rem;
  text-align: right;
}

main h1 {
  font-size:      3.2rem;
  padding-top:    1rem;
  padding-bottom: 1rem;
}

main h2 {
  font-size:      2.8rem;
  padding-top:    1rem;
  padding-bottom: 1rem;
}

main h3 {
  font-size:      2.6rem;
  padding-top:    1rem;
  padding-bottom: 1rem;
}

main h4 {
  font-size:      2.4rem;
  padding-top:    1rem;
  padding-bottom: 1rem;
}

main h5 {
  font-size:      2.2rem;
  padding-top:    1rem;
  padding-bottom: 1rem;
}

article > p {
  padding-top:    1rem;
  padding-bottom: 1rem;
  text-align:     justify;
}

main article p {
  text-indent: 2rem;
}

main dl dt {
  font-weight: bold;
}

main dl dd {
  text-align:     justify;
  padding-left:   2rem;
  padding-bottom: 0.5rem;
}

main em {
  font-style: italic;
}

code {
  font-family: 'Oxygen Mono';
}

pre {
  padding:          1rem;
  background-color: var(--pre-bg);
  max-width:        100%;
  overflow:         auto;
  border-radius:    1rem;
}

main img {
  margin-left: -2rem; /*remove text indent for img*/
  width:       100%;
}

video {
  width: 100%;
}

.sidenote {
  font-size:    0.8rem;
  float:        right;
  clear:        right;
  width:        15rem;
  margin-right: -16rem;
  margin-bottom: 1em;
}

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

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

label.sidenote-toggle {
  display: inline;
  cursor:  pointer;
}

.sidenote-number::after {
  content:        counter(sidenote-counter);
  font-size:      0.7rem;
  vertical-align: super;
}

.sidenote-number ~ .sidenote::before {
  content:        counter(sidenote-counter) ' ';
  font-size:      0.7rem;
  vertical-align: super;
}

.footnote-ref::before {
  content: '[';
}

.footnote-ref::after {
  content: ']';
}

.footnote ol {
  counter-reset: fn-counter;
  padding-left:  2rem;
}

.footnote li {
  counter-increment: fn-counter;
  padding-bottom:    0.5rem;
}

.footnote li::marker {
  content: '[' counter(fn-counter) '] ';
}

.footnote p {
  text-indent: 0rem;
}

@media (max-width: 74rem) {
  body {
    grid-template-columns: 1fr 8rem calc(100vw - 9rem) 1fr;
  }
  
  label.sidenote-toggle:not(.sidenote-number) {
    display: inline;
  }
  
  .sidenote {
    display: none;
  }
  
  .sidenote-toggle:checked + .sidenote {
    display:       block;
    margin-top:    0.5rem;
    margin-bottom: 0.5rem;
    margin-left:   5%;
    margin-right:  5%;
    float:         none;
    clear:         both;
    width:         90%;
  }
}