print.css

@font-face {
  font-family: "Arial Plus";
  src: local("Arial");
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+30;
  font-style: normal;
  font-weight: 400;
  src: local(IBM Plex Mono Regular), local(IBMPlexMono-Regular);
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+221e;
  font-style: normal;
  font-weight: 400;
  src: local("DejaVu Math TeX Gyre");
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+30;
  font-style: normal;
  font-weight: 700;
  src: local(IBM Plex Mono Bold), local(IBMPlexMono-Bold);
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+221e;
  font-style: normal;
  font-weight: 700;
  src: local("DejaVu Math TeX Gyre");
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+30;
  font-style: italic;
  font-weight: 400;
  src: local(IBM Plex Mono Italic), local(IBMPlexMono-Italic);
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+221e;
  font-style: italic;
  font-weight: 400;
  src: local("DejaVu Math TeX Gyre");
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+30;
  font-style: italic;
  font-weight: 700;
  src: local(IBM Plex Mono Bold Italic), local(IBMPlexMono-BoldItalic);
}

@font-face {
  font-family: "Arial Plus";
  unicode-range: U+221e;
  font-style: italic;
  font-weight: 700;
  src: local("DejaVu Math TeX Gyre");
}

:root {
  --page-number-style: decimal;
}

@page {
  size: A4;
  margin-top: 28mm;
  margin-bottom: 20mm;
  margin-inside: 19mm;
  margin-outside: 13mm;
  -prince-page-fill: prefer-fill;

  /* Uncomment when producing WIP versions of final standards */
  /*
  @prince-overlay {
    color: rgba(0,0,0,0.15);
    content: "WORK IN PROGRESS";
    font-family: Arial;
    font-weight: bolder;
    font-size: 100pt;
    transform: rotate(-60deg);
  }
  */

  @bottom-left {
    font-family: Arial;
  }

  @bottom-right {
    font-family: Arial;
  }
}

@page :verso {
  @top-left {
    content: url('../img/ecma-header.svg');
    padding-top: 5mm;
  }

  @bottom-left {
    content: counter(page, var(--page-number-style));
    font-size: 10pt;
  }

  @bottom-right {
    content: '© Ecma International ' string(year, first);
    font-size: 8pt;
  }
}

@page :recto {
  @top-right {
    content: url('../img/ecma-header.svg');
    padding-top: 5mm;
  }

  @bottom-left {
    content: '© Ecma International ' string(year, first);
    font-size: 8pt;
  }

  @bottom-right {
    content: counter(page, var(--page-number-style));
    font-size: 10pt;
  }
}

@page :first, :nth(2) {
  margin: 0;

  @top-left {
    content: none;
  }

  @top-right {
    content: none;
  }

  @bottom-left {
    content: none;
  }

  @bottom-right {
    content: none;
  }
}

@page toc, copyright, intro {
  --page-number-style: lower-roman;
}

@page :blank {
  @bottom-left {
    content: none;
  }

  @bottom-right {
    content: none;
  }
}

@page front-cover {
  background-image: url('../img/print-front-cover.svg');
}

@page inside-cover {
  background-image: url('../img/print-inside-cover.svg');
}

@page front-cover, inside-cover {
  background-color: transparent;
  background-position: center;
  background-repeat: no-repeat;
  margin: 0;
  padding: 0;
  page-break-after: always;
}

html, body {
  background-color: initial;
}

body {
  font-family: 'Arial Plus', Arial, Helvetica, sans-serif, "DejaVu Math TeX Gyre", Symbola, monospace;
  font-size: 10pt;
  color: #000;
  line-height: 1.15;
}

h1, h2, h3, h4, h5, h6 { -prince-bookmark-level: none }

.copyright-notice + h1.title {
  break-before: recto;
  color: black;
  counter-reset: page 1;
  display: block;
  font-size: 15pt;
  font-family: Verdana;
  font-weight: bold;
  margin-bottom: 2.5ex;
  margin-top: initial;
}

p {
  text-align: justify;
  text-rendering: optimizeLegibility;
  text-wrap: pretty;
  overflow-wrap: break-word;
  hyphens: auto;
  orphans: 2;
  widows: 2;
}

h1 {
  text-wrap: balance;
  line-height: 1.4;
}

emu-alg {
  display: block; /* Can't render block elements inside inline elements. */
}

emu-alg li {
  orphans: 2;
  widows: 2;
}

emu-note,
emu-note p,
emu-table tr,
emu-table th,
emu-table td,
pre,
h1,
emu-production,
emu-figure:has(> figure > img) figure,
#metadata-block {
  break-inside: avoid;
  border: unset;
}

p:has(+ .math-display),
emu-table thead,
h1,
figcaption,
emu-alg > ol > li:first-child,
emu-grammar:has(+ emu-alg),
figcaption:has(+ emu-table) {
  break-after: avoid-page;
}

emu-alg ol li:last-child {
  break-before: avoid;
  break-after: initial; /* it's okay to break after the last item in a list, even if it's also the first item in the list */
}

emu-normative-optional emu-clause[id] {
  margin-top: 0;
}

emu-normative-optional emu-alg > ol {
  margin-bottom: 0;
}

emu-note {
  gap: initial;
  justify-content: space-between;
}

emu-note .note {
  font-size: 9pt;
  min-width: 4.5em;
}

emu-note p,
emu-table td p {
  text-align: left;
  hyphens: manual;
  overflow: hidden;
}

emu-nt, emu-t {
  display: initial;
}

emu-production.inline {
  text-align: left;
}

emu-production.inline emu-nt {
  display: inline;
}

emu-intro {
  page: intro;
}

emu-intro, emu-clause, emu-annex {
  margin-top: 4ex;
}

emu-clause p:first-of-type {
  margin-bottom: 0;
  orphans: 3;
}

emu-clause > p:first-of-type {
  break-after: avoid-page;
}

emu-clause p:last-child {
  break-after: auto;
  margin-bottom: 0;
}

emu-clause > p:only-of-type {
  break-after: auto;
}

emu-clause > p:first-of-type + emu-alg {
  break-before: avoid;
}

emu-intro emu-intro, emu-clause emu-clause, emu-annex emu-annex {
  margin-top: 3.5ex;
}

emu-intro emu-intro emu-intro,
emu-clause emu-clause emu-clause,
emu-annex emu-annex emu-annex,
emu-intro emu-intro emu-intro emu-intro,
emu-clause emu-clause emu-clause emu-clause,
emu-annex emu-annex emu-annex emu-annex,
emu-intro emu-intro emu-intro emu-intro emu-intro,
emu-clause emu-clause emu-clause emu-clause emu-clause,
emu-annex emu-annex emu-annex emu-annex emu-annex {
  margin-top: 3.2ex;
}

emu-intro h1, emu-clause h1 , emu-annex h1 {
  break-after: avoid;
  font-size: 12pt;
  -prince-bookmark-level: 1;
  -prince-bookmark-label: content();
}

emu-clause emu-clause h1, emu-annex emu-annex h1 {
  -prince-bookmark-level: 2;
  -prince-bookmark-state: closed;
}

emu-clause emu-clause h1, emu-annex emu-annex h1,
emu-intro h2, emu-clause h2, emu-annex h2 {
  font-size: 11pt;
}

emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex h1 {
  -prince-bookmark-level: 3;
}

emu-clause emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex emu-annex h1 {
  -prince-bookmark-level: 4;
}

emu-clause emu-clause emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex emu-annex emu-annex h1 {
  -prince-bookmark-level: 5;
}

emu-clause emu-clause emu-clause emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex emu-annex emu-annex emu-annex h1 {
  -prince-bookmark-level: 6;
}

emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex h1,
emu-clause emu-clause h2, emu-annex emu-annex h2,
emu-clause emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex emu-annex h1,
emu-clause emu-clause emu-clause h2, emu-annex emu-annex emu-annex h2,
emu-clause emu-clause emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex emu-annex emu-annex h1,
emu-clause emu-clause emu-clause emu-clause h2, emu-annex emu-annex emu-annex emu-annex h2,
emu-clause emu-clause emu-clause emu-clause emu-clause emu-clause h1, emu-annex emu-annex emu-annex emu-annex emu-annex emu-annex h1,
emu-clause emu-clause emu-clause emu-clause emu-clause h2, emu-annex emu-annex emu-annex emu-annex emu-annex h2 {
  font-size: 10pt;
}

emu-clause ol, emu-clause ul, emu-clause dl, emu-annex ol, emu-annex ul, emu-annex dl {
  margin-left: 0;
  padding-left: 1.75em;
}

emu-clause ol ol, emu-clause ul ul {
  padding-left: 2em;
}

emu-grammar {
  display: block;
}

emu-grammar:has(emu-production.inline) {
  display: inline-block;
}

h1 + emu-grammar {
  margin-top: 1ex;
}

p + emu-grammar {
  break-before: avoid;
}

emu-table td,
emu-table th {
  overflow-wrap: break-word;
}

caption, table > figcaption {
  caption-side: top;
  color: #555555;
  font-weight: bold;
  margin-bottom: 1rem;
  text-align: center;
}

caption {
  -prince-caption-page: first;
}

/* do not break inside of small tables */
table:not(:has(tr:nth-of-type(5))) {
  break-inside: avoid-page;
}

table > figcaption {
  display: table-caption;
  -prince-caption-page: following;
}

table > figcaption::after {
  content: ' (continued)';
  font-style: italic;
  font-weight: normal;
}

th[rowspan] {
  vertical-align: bottom;
}

td[rowspan] {
  vertical-align: middle;
}

emu-table thead {
  display: table-header-group;
}

emu-table tfoot {
  display: table-footer-group;
}

emu-figure img {
  margin-top: 1ex;
  max-width: 100%;
  height: auto;
}

#spec-container {
  max-width: initial;
}

#spec-container > emu-annex {
  margin-top: 0;
}

#toc > h2 {
  -prince-bookmark-level: 1;
  -prince-bookmark-label: content();
}

#toc > h2::after {
  content: 'page';
  float: right;
  font-size: 10pt;
  text-align: right;
}

#toc a,
#toc var {
  color: #000;
}

#toc a[href]::after {
  content: leader(dotted) target-counter(attr(href), page);
}

#toc > ol.toc {
  margin-top: 0;
}

ol.toc {
  font-weight: bold;
  margin-left: 0;
  padding-left: 0;
}

ol.toc ol.toc {
  padding-left: 0;
}

ol.toc li {
  text-indent: 35pt hanging;
}

ol.toc .secnum {
  display: inline-block;
  min-width: 3.25em;
}

/* skip the Introduction since it's before the first emu-clause (and therefore doesn't have a proper page number) */
#toc > ol > li:first-child {
  display: none;
}

#toc > ol > li {
  margin-top: 0.75ex;
}

#toc,
#spec-container > emu-intro,
#spec-container > emu-annex {
  break-before: recto;
  break-after: page;
}

a[data-print-href]::after {
  content: ' <' attr(href) '>';
  color: initial;
}

.real-table {
  max-width: 100%;
  width: auto;
}

emu-annex > h1 {
  text-align: center;
}

emu-annex > h1 span {
  display: block;
}

emu-annex > h1 .secnum {
  margin: 0 0 1lh;
}

.copyright-notice { /* ecma mandated */
  font-style: italic;
  border: 1px solid black;
  padding: 1em;
  page: copyright;
  page-break-before: always;
  page-break-after: always;
}

.secnum {
  font-family: Arial, Helvetica, sans-serif;
}

#front-cover {
  page: front-cover;
  position: relative;
  width: 210mm;
  height: 297mm;
}

#front-cover h1 {
  color: black;
  display: block;
  font-family: Verdana;
  position: absolute;
}

h1.shortname {
  top: 86mm;
  font-weight: 400;
  font-size: 21pt;
  right: 31mm;
  text-align: right;
  margin-top: 0;
}

h1.shortname a:link, h1.shortname a:visited, h1.shortname a:hover, h1.shortname a:active {
  color: black;
}

h1.shortname .status {
  display: inline-block;
  margin-right: 7em;
  text-transform: capitalize;
}

h1.version {
  font-size: 9.7pt;
  font-weight: normal;
  margin-top: 0;
  text-align: right;
  top: 96mm;
  left: 139mm;
  string-set: year attr(data-year);
}

#front-cover h1.title {
  display: block;
  font-weight: bold;
  font-size: 20pt;
  line-height: 1.2;
  top: 109mm;
  right: 15mm;
  width: 95mm;
  text-align: left;
}

#inside-cover {
  page: inside-cover;
}

#toc {
  page: toc;
  counter-reset: page 1;
}

#toc h2 {
  font-size: 12pt;
  margin-bottom: 1.5ex;
}

.annex-kind {
  font-weight: normal;
}

p.ECMAaddress {
  margin: 0;
}