/* CSS3_ style sheet for the output of Docutils HTML writers.              */
/* Rules inspired by Edward Tufte's layout design.                         */
/*                                                                         */
/* :Author: Günter Milde                                                   */
/*          based on tufte.css_ by Dave Liepmann                           */
/*          and the tufte-latex_ package.                                  */
/*                                                                         */
/* :Id: $Id$                                                               */
/* :Copyright: © 2020 Günter Milde.                                        */
/* :License: Released under the terms of the `2-Clause BSD license`_,      */
/*    in short:                                                            */
/*                                                                         */
/*    Copying and distribution of this file, with or without modification, */
/*    are permitted in any medium without royalty provided the copyright   */
/*    notice and this notice are preserved.                                */
/*                                                                         */
/*    This file is offered as-is, without any warranty.                    */
/*                                                                         */
/* .. _2-Clause BSD license: http://www.spdx.org/licenses/BSD-2-Clause     */
/* .. _CSS3: http://www.w3.org/TR/CSS3                                     */
/* .. _tufte.css: https://edwardtufte.github.io/tufte-css/                 */
/* .. _tufte-latex_: https://www.ctan.org/pkg/tufte-latex                  */


/* General Settings */
/* ================ */

body {
  font-family: et-book, Palatino, Georgia, serif;
  background-color: #fafaf6;
  font-size: 1.2em;
  line-height: 1.4;
  margin: auto;
}
main {
  counter-reset: figure table;
}
main, header, footer {
  padding: 0.5em 5%;
  background-color: #fefef8;
  max-width: 100rem;
}

/* Spacing */

/* vertical space (parskip) */
p, ol, ul, dl, li,
div.line-block,
div.topic,
table {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}
h1, h2, h3, h4, h5, h6,
dl > dd {
  margin-bottom: 0.5em;
}
/* exceptions */
p:first-child {
  margin-top: 0;
}
p:last-child {
  margin-bottom: 0;
}
blockquote > table,
div.topic > table {
  margin-top: 0;
  margin-bottom: 0;
}

/* Indented Blocks */
blockquote,
div.topic {
  /* background-color: Honeydew; */
  margin: 0.5em 2%;
  padding-left: 1em;
}
div.line-block div.line-block,
dl.option-list,
figure > img,
pre.literal-block, pre.math,
pre.doctest-block, pre.code {
  /* background-color: LightCyan; */
  margin-left: calc(2% + 1em);
}

/* Object styling */
/* ============== */

footer, header {
  font-size: smaller;
}

/* Titles and Headings */

h2, h3, h4, p.subtitle, p.section-subtitle,
p.topic-title, p.sidebar-title, p.sidebar-subtitle {
  font-weight: normal;
  font-style: italic;
  text-align: left;
}
.sectnum {
  font-style: normal;
}

h1.title {
  text-align: left;
  margin-top: 2.4em;
  margin-bottom: 2em;
  font-size: 2.4em;
}
h1 + p.subtitle {
  margin-top: -2em;
  margin-bottom: 2em;
  font-size: 2.0em;
}
h2, h3, h4 {
  margin-top: 2.0em;
}
h2, .contents > p.topic-title {
  font-size: 2.2em;
}
h2 + p.section-subtitle {
  font-size: 1.6em;
}
h3 {
  font-size: 1.2em;
}
h3 + p.section-subtitle {
  font-size: 1.1em;
}
h4 {
  font-size: 1em;
}
p.section-subtitle {
  font-size: 1em;
}

/* Dedication and Abstract */
div.topic.dedication {
  padding: 0;
  margin-left: 0;
  font-style: italic;
  font-size: 1.2em;
}
/* div.abstract p.topic-title, */
div.dedication p.topic-title {
  display: none;
}

/* Attribution */
blockquote p.attribution,
div.topic p.attribution {
  text-align: right;
}

/* Table of Contents */
div.topic.contents {
  padding: 0;
  font-style: italic;
}
ul.auto-toc > li > p {
  padding-left: 1em;
  text-indent: -1em;
}
div.topic.contents ul { 
  padding-left: 1em;
}


/* Transitions */
hr {
  border: 0;
  border-top: 1px solid #ccc;
  margin: 1em 10%;
}

/* Lists */
/* Less indent per level */
ul, ol { 
  padding-left: 1.1em;
}
dd {
  margin-left: 1.5em;
}
dd > dl:first-child,
dd > ul:first-child,
dd > ol:first-child {
  /* lists nested in definition/description/field lists */
  clear: left;
}

dl.field-list > dd,
dl.docinfo > dd,
dl.option-list > dd {
  margin-left: 4em;
}
/* example for custom field-name width */
dl.field-list.narrow > dd {
  margin-left: 3em;
}
/* run-in: start field-body on same line after long field names */
dl.field-list.run-in > dd p {
  display: block;
}
/* italic field name */
dl.description > dt,
dl.field-list > dt,
dl.docinfo > dt {
  font-weight: normal;
  font-style: italic;
}

/* "description style" like in most dictionaries, encyclopedias etc. */
dl.description > dt {
  clear: left;
  float: left;
  margin: 0;
  padding: 0;
  padding-right: 0.5em;
}
dl.description > dd:after {
  display: block;
  content: "";
  clear: both;
}

/* Images and Figures */
img {
  display: block;
}
p > img, p > a > img,
figure > img, figure > a > img {
  display: inline;
}
/* Caption to the left (if there is space) or below: */
figure {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  margin: 0.5em 2%;
  padding-left: 1em;
}
figure > img,
figure.fullwidth > img {
  margin: 0 0.5em 0.5em 0;
  padding: 0;
}
figcaption {
  font-size: 0.8em;
}
figure.numbered > figcaption > p:before {
  counter-increment: figure;
  content: "Figure " counter(figure) ": ";
}

/* Tables */
table tr {
  text-align: left;
}
/* th { vertical-align: bottom; } */
/* "booktabs" style (no vertical lines) */
table.booktabs {
  border-top: 2px solid;
  border-bottom: 2px solid;
}
table.booktabs * {
  border: 0;
}
table.booktabs th {
  border-bottom: thin solid;
}
table.numbered > caption:before {
  counter-increment: table;
  content: "Table " counter(table) ": ";
}

/* Admonitions and System Messages */
.admonition,
div.system-message {
  border-style: solid;
  border-color: silver;
  border-width: thin;
  margin: 1em 0;
  padding: 0.5em;
}
.caution p.admonition-title,
.attention p.admonition-title,
.danger p.admonition-title,
.warning p.admonition-title,
div.error {
  color: maroon;
}

/* Literal and Code */
pre.literal-block, pre.doctest-block,
pre.math, pre.code {
  /* font-family: Consolas, "Liberation Mono", Menlo, monospace; */
  /* font-size: 0.9em; */
  overflow: auto;
}
/* basic highlighting: for a complete scheme, see */
/* http://docutils.sourceforge.net/sandbox/stylesheets/ */
pre.code .comment, code .comment { color: #5C6576 }
pre.code .keyword, code .keyword { color: #3B0D06; font-weight: bold }
pre.code .literal.string, code .literal.string { color: #0C5404 }
pre.code .name.builtin, code .name.builtin { color: #352B84 }
pre.code .deleted, code .deleted { background-color: #DEB0A1}
pre.code .inserted, code .inserted { background-color: #A3D289}

.sans {
    font-family: "Gill Sans", "Gill Sans MT", Calibri, "Lucida Sans", "Noto Sans", sans-serif;
    letter-spacing: .02em;
}

/* Hyperlink References */
/* underline that clears descenders */
a {
  color: inherit;
}
a:link {
  text-decoration: underline;
  /* text-decoration-skip-ink: auto; nonstandard selector */
}
/* undecorated links */
.contents a:link, a.toc-backref:link, a.image-reference:link,
a.footnote-reference:link, a.fn-backref:link, .fn-backref a:link,
a.citation-reference:link,
a[href^="#system-message"] {
  text-decoration: none;
}
a:link:hover {
  text-decoration: underline;
}  

/* Block Alignment */
/* Let content flow to the side of aligned images and figures */
/* (does not work if the image/figure is a grid element). */

/* no floats around this elements */
footer, header,
hr.docutils,
h1, h2, h3, .contents > p.topic-title,
.fullwidth {
  clear: both;
}

img.align-left,
figure.align-left,
table.align-left {
  margin-left: 0;
  padding-left: 0;
  padding-right: 0.5em;
  clear: left;
  float: left;
}
figure.align-left > img {
  margin-left: 0;
  padding-left: 0;
}


img.align-right {
  padding-left: 0.5em;
  clear: right;
  float: right;
}
figure.align-right {
  clear: right;
  float: right;
}
figure.align-right > img {
  justify-self: right;
  padding: 0;
}
table.align-right {
  margin-right: 2.5%;
}

figure.align-center {
  align-content: center;
  justify-content: center;
}
figure.align-center > img {
  padding-left: 0;
  justify-self: center;
}

/* Margin Elements */
/* see below for screen size dependent rules */
aside.sidebar {
  /* overwrite minimal.css */
  width: auto;
  max-width: 100%;
  float: none;
}
aside.sidebar,
.marginal,
.admonition.marginal,
.topic.marginal {
  background-color: #efefea;
  box-sizing: border-box;
  margin-left: 2%;
  margin-right: 0;
  padding: 0.5em;
  font-size: 0.8em;
}
figure.marginal > figcaption {
  font-size: 1em;
}
dl.footnote {
  font-size: 0.8em;
  padding-left: 1ex;
  border-left: solid;
  border-left-width: thin;
  overflow: auto;
}

/* Adaptive page layout */

/* no floating for very small Screens */
/* (main text up to ca. 40 characters/line) */
@media (min-width: 35em) {
  main, header, footer {
    padding: 0.5em calc(15% - 3rem);
    line-height: 1.6
  }
  aside.sidebar,
  .marginal,
  .admonition.marginal,
  .topic.marginal {
    max-width: 45%;
    float: right;
    clear: right;
  }
  dl.field-list > dd,
  dl.docinfo > dd {
    margin-left: 6em;
  }
  dl.option-list > dd {
    margin-left: 6em;
  }
}

/* 2 column layout with wide margin */
@media (min-width: 65em) {
  /* use the same grid for main, all sections, and figures */
  main, section {
    display: grid;
    grid-template-columns: [content-start] minmax(0, 6fr)
    			   [content-end] 3fr [end];
    grid-column-gap: calc(3em + 1%);
  }
  main > section, section > section {
    grid-column: 1 / end;
  }
  main, header, footer {
    padding-right: 5%; /* less padding right of margin-column */
  }
  section > figure {
    display: contents; /* to place caption in the margin */
  }
  /* Main text elements */
  main > *, section > *,
  figure > img,
  dl.footnote.align-left, /* override the placement in the margin */
  dl.citation.align-left {
    grid-column: content-start / content-end;
  }
  dl.citation.align-left {
    font-size: 1em;
  }
  figure > img { /* indent */
    margin: 0.5em 2%;
    padding-left: 1em;
  }

  /* Margin Elements */
  /* Sidebar, Footnotes, Citations, Captions */
  aside.sidebar,
  dl.footnote,
  dl.citation,
  figcaption,
  /* table > caption,  does not work :(*/
  .marginal,
  .admonition.marginal,
  .topic.marginal {
    /* background-color: Lavender; */
    grid-column: content-end / end;
    width: auto;
    max-width: 55em;
    margin: 0.5em 0;
    padding: 0;
    font-size: 0.8em;
    text-align: initial; /* overwrite align-* */
    background-color: inherit;
  }
  .admonition.marginal {
    padding: 0.5em;
  }
  figure.marginal {
    display: block;
    margin: 0.5em 0;
  }
  dl.footnote {
    padding-left: 0;
    border-left: none;
  }
  dl.citation > dd,
  dl.footnote.superscript > dd {
    margin-left: 0;
  }

  /* Fullwidth Elements */
  h1.title, p.subtitle,
  dl.docinfo,
  div.topic.abstract,
  div.topic.dedication,
  div.topic.contents,
  div.system-message,
  pre,
  .fullwidth,
  .fullwidth img {
    /* background-color: Linen; */
    grid-column: content-start / end;
    margin-right: calc(10% - 3rem);
    max-width: 55em;
  }
}

/* 3 column layout */

@media (min-width: 100em) {
  main, header, footer {
    padding-left: 30%;
  }
  main > div.topic.contents {
    position: fixed;
    top: 0;
    left: 0;
    box-sizing: border-box;
    width: 25%;
    height: 100vh;
    margin: 0;
    background-color: #fafaf6;
    padding: 5.5em 2%;
    overflow: auto;
  }
  main > div.topic.contents > * {
    padding-left: 0;
  }
}

/* wrap URLs */ 
/*   a:link {    */
/*     white-space: normal; */
/*     hyphens: none;	    */
/*   }			    */
