Add Tufte margin+side pars to the default Firn layout

firn-tufte.css

@charset "UTF-8";

/*
 * Firn's default style sheet uses a modified version of:
 * MVP.css v1.6.2 - https://github.com/andybrewer/mvp
 * Change the default variables below to find a styling you like.
 */

/* Reset / Overrides */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* CSS Variables (light mode) */

:root {
  --border-radius: 4px;
  --box-shadow: 2px 2px 10px;
  --color-primary: #3498db;
  --color-primary-accent: #3498db14;
  --color-bg: #fff;
  --color-bg-secondary: #e9e9e9;
  --color-secondary: #222;
  --color-secondary-accent: #222ab;
  --color-shadow: #f4f4f4;
  --color-text: #444;
  --color-text-secondary: #999;
  --font-family: "Arial", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --hover-brightness: 1.2;
  --justify-important: center;
  --justify-normal: left;
  --line-height: 1.65;
  --width-card-wide: 800px;
  --width-content: 48rem;

  /* Currently, Firn only supports 'todo | done' keywords. */
  --keyword-active: #2ecc71; /* For "active" Todo keywords. */
  --keyword-done: #bdc3c7; /* For "done type keywords" */
  --keyword-size: xx-small;

  /* Headline priorities ([#A] [#B] etc) */
  --priority-a-bg: #c0392b;
  --priority-b-bg: #3498db;
  --priority-c-bg: #2ecc71;
  --priority-size: xx-small;

  /* Headline Tags (:my-tag: :unfinished: etc)*/
  --tag-size: x-small;
  --tag-bg: #ecf0f1;
}

/* CSS Variables (dark mode) */
@media (prefers-color-scheme: dark) {
  :root {
    --color: #0097fc;
    --color-primary-accent: #555;
    --color-bg: #333;
    --color-bg-secondary: #555;
    --color-shadow: #bbbbbb20;
    --color-secondary: #efefef;
    --color-secondary-accent: #efefef;
    --color-text: #f7f7f7;
    --color-text-secondary: #aaa;
    --tag-bg: #555;
  }
}

/* Layout */

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family);
  line-height: var(--line-height);
  font-size: 15px;
  margin: 0;
  overflow-x: hidden;
  counter-reset: sidenote-counter; 
}

footer,
main {
  margin: 0 auto;
}

.content {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 32px;
}

.back-to-main { margin-left:15px; }

hr {
  margin: 2rem 0;
  border-top: 1px solid var(--border-col);
  border-bottom: none;
}

/* Headers */
article header,
div header,
main header {
  padding-top: 0;
}

/* Typography */
code,
samp {
  background-color: var(--color-primary-accent);
  border-radius: var(--border-radius);
  color: var(--color-text);
  display: inline-block;
  margin: 0 0.1rem;
  padding: 0 0.5rem;
  font-size: 0.85em;
}

details {
  margin: 1.3rem 0;
}

details summary {
  font-weight: bold;
  cursor: pointer;
  padding: 0 8px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: var(--line-height);
  margin: 1em 0;
}

mark {
  padding: 0.1rem;
}

ol,
ul {
  margin: 0.125rem 0;
  padding-left: 1.25rem;
}

ol li,
ul li {
  padding: 0.125rem 0;
}

p {
  margin: 1rem 0;
  padding: 0;
}

pre {
  margin: 1rem 0;
  padding: 1rem 0;
}

pre code,
pre samp {
  display: block;
  padding: 0.5rem 1rem;
  overflow-x: auto;
}

small {
  color: var(--color-text-secondary);
}

sup {
  background-color: var(--color-primary);
  border-radius: var(--border-radius);
  color: var(--color-bg);
  font-size: xx-small;
  margin: 0.2rem;
  padding: 0.2rem 0.3rem;
  position: relative;
  top: -2px;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
}

a:hover {
  filter: brightness(var(--hover-brightness));
  text-decoration: underline;
}

/* -- Images */

figure {
  margin: 0;
  padding: 0;
}

figure img {
  max-width: 100%;
}

figure figcaption {
  color: var(--color-text-secondary);
}

/* -- Tables */
table {
  border: 1px solid var(--color-bg-secondary);
  border-radius: var(--border-radius);
  border-spacing: 0;
  display: inline-block;
  max-width: 100%;
  overflow-x: auto;
  padding: 0;
  white-space: nowrap;
}

table td,
table th,
table tr {
  padding: 0.4rem 0.8rem;
  font-size: 0.9em;
}

/* Firn currently can't discern if a table has a <th>,*/
/* so we style the first element.*/
table tr:first-child {
  background-color: var(--color-primary);
  border-collapse: collapse;
  border-radius: var(--border-radius);
  color: var(--color-bg);
  margin: 0;
  padding: 0;
}

table thead th:first-child {
  border-top-left-radius: var(--border-radius);
}

table thead th:last-child {
  border-top-right-radius: var(--border-radius);
}

table thead th:first-child,
table tr td:first-child {
  text-align: var(--justify-normal);
}

table tr:nth-child(even) {
  background-color: var(--color-primary-accent);
}

blockquote {
  display: block;
  font-size: large;
  font-style: italic;
  line-height: var(--line-height);
  padding: 1.5rem 0;
  background: var(--color-primary-accent);
}

blockquote footer {
  color: var(--color-text-secondary);
  display: block;
  font-size: small;
  line-height: var(--line-height);
  padding: 1.5rem 0;
}

/* -- Firn Org Tweaks ---- */

/* Because firn spits out nested content (for example, the parser spits out p
   tags within li tags), sometimes you may need to style the children of html
   elements to get the spacing you like.*/

li > p {
  margin: 0;
  padding: 0;
}

/* -- Firn "Components" ---- */

/* Images */
.firn-img-with-caption {
  display: flex;
  flex-direction: column;
}

.firn-img-with-caption img {
  align-self: flex-start;
}

.firn-img-caption {
  font-style: italic;
}

/* Headline Keywords and Priority */

/* This applies to ALL h1-h6 */
.firn-headline {
  display: flex;
  align-items: center; /* center align useful for aligning tags + keywords */
}

.firn-headline-section {
  margin-bottom: 32px;
}

.firn-headline-priority {
  background-color: var(--color-secondary);
  border-radius: var(--border-radius);
  color: white;
  font-size: xx-small;
  font-weight: bold;
  margin-right: 0.5rem;
  padding: 0.2rem 0.3rem;
  font-size: var(--priority-size);
}

.firn-headline-priority__A {
  background-color: var(--priority-a-bg);
}

.firn-headline-priority__B {
  background-color: var(--priority-b-bg);
  font-size: var(--priority-size);
}

.firn-headline-priority__C {
  background-color: var(--priority-c-bg);
  font-size: var(--priority-size);
}

.firn-headline-keyword__DONE {
  background-color: var(--keyword-done);
  border-radius: var(--border-radius);
  color: var(--color-bg);
  font-size: var(--keyword-size);
  font-weight: bold;
  margin-right: 0.5rem;
  padding: 0.2rem 0.3rem;
  position: relative;
}

.firn-headline-keyword__TODO {
  background-color: var(--keyword-active);
  border-radius: var(--border-radius);
  color: var(--color-bg);
  font-size: xx-small;
  font-weight: bold;
  margin-right: 0.5rem;
  padding: 0.2rem 0.3rem;
  position: relative;
}

.firn-headline-text {
  /* display: flex; */
  flex: 1;
  align-items: center;
}

.firn-cookie {
}

/* Org Footnotes */

.firn-footnote-ref {
}

.firn-footnote-def {
}

/* Org Property Drawers */

.firn-properties {
  background-color: var(--color-bg-secondary);
}

.firn-property-key {
}

.firn-property-value {
}

/* Styling for internal and external links */

.firn-external {
}

.firn-internal {
}

/* If you choose to render :PROPERTIES: drawers, you may style them: */
.firn-properties {
  background: var(--color-bg-secondary);
  padding: 8px;
}
.firn-property-key {
}
.firn-property-value {
}

/* -- Folding ---------------------------------------------------------------- */

/* Folding leverages html <details> and <summary> tags to emulate the folding
   feature of org-mode. This is a bit hacky; we hide the regular heading (so
   that it still exists so it is anchorable, still has tags, priority etc).
*/

/* Headline text is hidden when using folding; it is instead rendered in a
   <summary> tag. */
.firn-headline-text-hidden {
  visibility: collapse;
  overflow: auto;
  flex: 1;
}

/* This moves tags, priority, other non-content text in headings up to
   approximately where the <summary> tag is. */
.firn-headline-hidden {
  margin-top: -2.6em;
  justify-content: right;
  display: flex;
}

/* If folding, we have to style the <summary> tags to make them look like headings. */

/* Set the parent element, so we can size-down on mobile. */
.firn-fold {
  font-size: 15px;
}
.firn-headline-summary-1 {
  font-size: 1.3em;
  margin: 1em 0;
}
.firn-headline-summary-2 {
  font-size: 1.15em;
  margin: 1em 0;
}
.firn-headline-summary-3 {
  font-size: 1.05em;
  margin: 1em 0;
}
.firn-headline-summary-4 {
  font-size: 1em;
  margin: 1em 0;
}
.firn-headline-summary-5 {
  font-size: 0.85em;
  margin: 1em 0;
}
.firn-headline-summary-6 {
  font-size: 0.75em;
  margin: 1em 0;
}

@media (max-width: 768px) {
  .firn-fold {
    font-size: 12px;
  }
}

/* Sitemap, breadcrumbs, siblings files, related files. ---------------------- */

.firn-sitemap {
}

.firn-sitemap-item--parent {
  list-style-type: none;
}

.firn-breadcrumbs {
}

.firn-file-navigation {
  display: flex;
  justify-content: space-between;
}

/* Tags (Firn / Org tags) ---------------------------------------------------- */

/* There are two types of tags when using Firn: "org-tags" and "firn-tags"
/* org-tags are your standard org-mode heading tags:  ":mytag:"*/
/* firn-tags are file-based tags that allows tagging entire files.*/

/* Firn tags (tags that are per file basis.) */

.firn-file-tags {
}
.firn-file-tags-container {
}
.firn-file-tag-name {
  font-size: 1.2em;
  margin: 1em 0;
  text-transform: capitalize;
}
.firn-file-tag-list {
}
.firn-file-tag-item {
}
.firn-file-tag-link {
}

/* Org tags (tags that are per heading basis.) */

/* How an org tag (ex - `:mytag:`) looks when rendered alongside an org heading. */
.firn-org-tag {
  background-color: var(--tag-bg);
  border-radius: var(--border-radius);
  color: var(--color-text);
  font-size: var(--tag-size);
  font-weight: 400;
  margin: 0 4px;
  padding: 0.2rem 0.4rem;
}

.firn-org-tag:hover {
  filter: none;
}

/* Optional: Adds a "#" before an org-tag */
.firn-org-tag::before {
  content: "#";
}

/* The following css classes style the result of rendering your org-tags list via*/
/* `(render :org-tags)` */
.firn-org-tags {
}
.firn-org-tags-container {
}
.firn-org-tag-name {
  font-size: 1.2em;
  margin: 1em 0;
  text-transform: capitalize;
}
.firn-org-tag-list {
}
.firn-org-tag-item {
}
.firn-org-tag-link {
}

/* TUFTE STYLE */

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

.sidenote,
.marginnote {
    float: right;
    clear: right;
    margin-right: -45%;
    width: 40%;
    margin-top: 0;
    margin-bottom: 0;
    font-size: 1.1rem;
    line-height: 1.3;
    vertical-align: baseline;
    position: relative; 
    display: inline !important;
}

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

.sidenote-number:after,
.sidenote:before {
    font-family: et-book-roman-old-style;
    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: -82%;
    min-width: 59%;
    text-align: left; 
}

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

div.table-wrapper {
    overflow-x: auto;
    font-family: "Trebuchet MS", "Gill Sans", "Gill Sans MT", sans-serif; 
}

.sans {
    font-family: "Gill Sans", "Gill Sans MT", Calibri, sans-serif;
    letter-spacing: .03em; 
}

code, pre > code {
    font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
    font-size: 1.0rem;
    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: 0.80em; 
}

.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; 
}

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%; 
}

/* Links */
/* Links: replicate underline that clears descenders */

a:link,
a:visited {
    color: inherit; 
}

.no-tufte-underline:link {
    background: unset;
    text-shadow: unset;
}

a:link, .tufte-underline, .hover-tufte-underline:hover {
    text-decoration: none;
    background: -webkit-linear-gradient(#fffff8, #fffff8), -webkit-linear-gradient(#fffff8, #fffff8), -webkit-linear-gradient(currentColor, currentColor);
    background: linear-gradient(#fffff8, #fffff8), linear-gradient(#fffff8, #fffff8), linear-gradient(currentColor, currentColor);
    -webkit-background-size: 0.05em 1px, 0.05em 1px, 1px 1px;
    -moz-background-size: 0.05em 1px, 0.05em 1px, 1px 1px;
    background-size: 0.05em 1px, 0.05em 1px, 1px 1px;
    background-repeat: no-repeat, no-repeat, repeat-x;
    text-shadow: 0.03em 0 #fffff8, -0.03em 0 #fffff8, 0 0.03em #fffff8, 0 -0.03em #fffff8, 0.06em 0 #fffff8, -0.06em 0 #fffff8, 0.09em 0 #fffff8, -0.09em 0 #fffff8, 0.12em 0 #fffff8, -0.12em 0 #fffff8, 0.15em 0 #fffff8, -0.15em 0 #fffff8;
    background-position: 0% 93%, 100% 93%, 0% 93%; 
}

@media screen and (-webkit-min-device-pixel-ratio: 0) {
    a:link, .tufte-underline, .hover-tufte-underline:hover {
        background-position-y: 87%, 87%, 87%;
    }
}

a:link::selection,
a:link::-moz-selection {
    text-shadow: 0.03em 0 #b4d5fe, -0.03em 0 #b4d5fe, 0 0.03em #b4d5fe, 0 -0.03em #b4d5fe, 0.06em 0 #b4d5fe, -0.06em 0 #b4d5fe, 0.09em 0 #b4d5fe, -0.09em 0 #b4d5fe, 0.12em 0 #b4d5fe, -0.12em 0 #b4d5fe, 0.15em 0 #b4d5fe, -0.15em 0 #b4d5fe;
    background: #b4d5fe;
}

@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 > ol {
        width: 90%; 
    }

    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%;
    } 
}