/* @@TITLE@@ version @@VERSION@@
 *
 * This is docbook.css.
 *
 * See https://xsltng.docbook.org/
 *
 */

:root {
  --symbol-fonts: "Arial Unicode", "Apple Symbols", "Symbol", "Symbola_hint";
  --body-family: "Noto Serif", serif, var(--symbol-fonts);
  --title-family: "Noto Sans", sans-serif, var(--symbol-fonts);
  --mono-family: "B612 Mono", monospace, var(--symbol-fonts);

  /* The default theme. */
  --background-color: #ffffff; //#fffff8;
  --surface-color: #fffff8;
  --primary-color: #7f7f7f;
  --primary-variant-color: #5f5f5f;
  --secondary-color: #ffbc42;
  --error-color: #b0002044;
  --error-border-color: #b00020;
  --on-background-color: #000000;
  --on-surface-color: #000000;
  --on-primary-color: #ffffff;
  --on-primary-variant-color: #ffffff;
  --on-secondary-color: #000000;
  --on-error-color: #000000;
  --enabled-color: rgb(240,240,240);
  --hovered-color: rgb(235,235,235);
  --focused-color: rgb(221,221,221);
  --modal-overlay-color: rgba(255,255,255,0.85);
  --hydrogen-color-blue: rgba(49,66,119,0.7);
  --hydrogen-color-blue-dark: rgb(49,66,119);
  --hydrogen-color-white: #EEE;
  --hydrogen-color-black: #111;

  --border-color: var(--primary-color);

  --header-color: var(--background-color);
  --on-header-color: var(--on-background-color);

  --sidebar-color: var(--primary-color);
  --on-sidebar-color: var(--on-primary-color);

  --table-border-style: 1px solid var(--primary-color);

  --numbered-separator-style: 1px solid var(--primary-color);
  --numbered-number-color: var(--on-surface-color);
  --numbered-background-color: var(--focused-color);
  --verbatim-odd-background-color: var(--hovered-color);
  --verbatim-even-background-color: var(--enabled-color);

  --verbatim-line-highlight-background-color: var(--primary-color);
  --verbatim-line-highlight-color: var(--on-primary-color);

  --revadded-background-color: var(--primary-color);
  --revadded-color: var(--on-primary-color);
  --revadded-before: "<ins>";
  --revadded-after: "</ins>";

  --revchanged-background-color: var(--secondary-color);
  --revchanged-color: var(--on-secondary-color);
  --revchanged-before: "<chg>";
  --revchanged-after: "</chg>";

  --revdeleted-background-color: var(--error-color);
  --revdeleted-color: var(--on-error-color);
  --revdeleted-before: "<del>";
  --revdeleted-after: "</del>";

  --note-border-color: #6666ff;
  --note-border-style: 2pt solid var(--note-border-color);
  --note-color: #6666ff22;
  --on-note-color: var(--on-surface-color);

  --tip-border-color: var(--primary-color);
  --tip-border-style: 2pt solid var(--tip-border-color);
  --tip-color: var(--surface-color);
  --on-tip-color: var(--on-surface-color);

  --important-border-color: var(--secondary-color);
  --important-border-style: 2pt solid var(--important-border-color);
  --important-color: var(--surface-color);
  --on-important-color: var(--on-surface-color);

  --caution-border-color: var(--secondary-color);
  --caution-border-style: 2pt solid var(--caution-border-color);
  --caution-color: var(--surface-color);
  --on-caution-color: var(--on-surface-color);

  --warning-border-color: var(--error-border-color);
  --warning-border-style: 2pt solid var(--warning-border-color);
  --warning-color: var(--error-color);
  --on-warning-color: var(--on-error-color);

  --danger-border-color: var(--error-border-color);
  --danger-border-style: 2pt solid var(--danger-border-color);
  --danger-color: var(--error-color);
  --on-danger-color: var(--on-error-color);

  --debug-background-color: var(--error-color);
  --debug-color: var(--on-error-color);

  --remark-background-color: var(--primary-color);
  --remark-color: var(--on-primary-color);
  --remark-border-color: var(--primary-color);
  --remark-border-style: 1px solid var(--remark-border-color);

  --annotation-separator-border-style: 2px dashed var(--border-color);

  --annotation-header-background-color: var(--surface-color);
  --annotation-header-color: var(--on-surface-color);
  --annotation-header-separator-border-style: 1px solid var(--primary-color);
  --annotation-body-border-style: 1px solid var(--primary-color);

  --nav-background-color: var(--surface-color);
  --error-border-style: 1px solid var(--error-border-color);
  --keycap-box-shadow: 1px 1px 1px 0px rgba(0,0,0,0.75);
  --popup-annotation-color: var(--surface-color);
  --on-popup-annotation-color: var(--on-surface-color);
  --popup-annotation-border-color: var(--primary-color);
  --popup-annotation-border-style: 1px solid var(--popup-annotation-border-color);

  --popup-annotation-header-color: var(--primary-color);
  --on-popup-annotation-header-color: var(--on-primary-color);
  --popup-annotation-header-separator-border-style: 1px solid var(--popup-annotation-border-color);

  --js-controls-border-color: var(--primary-color);
  --js-controls-border-style: 1px solid var(--js-controls-border-color);
  --js-controls-header-color: var(--primary-color);
  --on-js-controls-header-color: var(--on-primary-color);
  --js-controls-header-separator-border-style: 1px solid var(--popup-annotation-border-color);
  --js-controls-color: var(--surface-color);
  --on-js-controls-color: var(--on-surface-color);

  --line-height: 1.75rem;
}

/* These choices are inspired by the material design system. Someone
   with actual graphical design skills would do it better. Pull
   requests gleefully accepted.
 */

html.materials-dark {
  --background-color: #121212;
  --surface-color: #121212;
  --primary-color: #bb86fc;
  --primary-variant-color: #3700b3;
  --secondary-color: #03dac6;
  --error-color: #cf6679;
  --error-border-color: #b00020;
  --on-background-color: #ffffff;
  --on-surface-color: #ffffff;
  --on-primary-color: #000000;
  --on-primary-variant-color: #ffffff;
  --on-secondary-color: #000000;
  --on-error-color: #000000;
  --enabled-color: rgb(44,33,56);
  --hovered-color: rgb(49,38,63);
  --focused-color: rgb(63,51,74);
  --modal-overlay-color: rgba(18,18,18,0.85);
  --keycap-box-shadow: 1px 1px 1px 0px rgba(255,255,255,0.75);
}

html.materials-light {
  --background-color: #ffffff;
  --surface-color: #ffffff;
  --primary-color: #6200ee;
  --primary-variant-color: #3700b3;
  --secondary-color: #03dac6;
  --error-color: #b00020;
  --error-border-color: #cf6679;
  --on-background-color: #000000;
  --on-surface-color: #000000;
  --on-primary-color: #ffffff;
  --on-primary-variant-color: #ffffff;
  --on-secondary-color: #000000;
  --on-error-color: #ffffff;
  --enabled-color: rgb(240,240,240);
  --hovered-color: rgb(235,235,235);
  --focused-color: rgb(221,221,221);
  --modal-overlay-color: rgba(255,255,255,0.85);
}

html {
  padding: 0;
  margin-top: 0;
  margin-bottom: 0;
  margin-left: auto;
  margin-right: auto;
  font-family: var(--body-family);
  color: var(--on-background-color);
  background-color: var(--background-color);
  height: 100%;
  width: 100%;
  line-height: var(--line-height);
  font-size: 13.5pt;
  scroll-padding-top: 40px;
}

/* https://www.smashingmagazine.com/2020/07/css-techniques-legibility/ */
@supports (font-size-adjust: 1;) {
  html {
    font-size-adjust: 0.5;
  }
}

body {
  min-height: 100%;
  padding-top: 0;
  padding-left: 0;
  padding-right: 0;
  padding-bottom: 0;
  margin-top: 0;
  margin-bottom: 0;
  margin-left: 1rem;
  margin-right: 1rem;
  display: grid;
  grid-template-rows: 1fr auto;
  grid-template-columns: 100%;
}

.error * {
  background-color: var(--error-color);
  color: var(--on-error-color);
  padding-left: 2px;
  padding-right: 2px;
}

span.error {
  display: inline-block;
  border: var(--error-border-style);
  border-radius: 4px;
  padding: 2px;
  margin-right: 0.5em;
}

span.error::before {
  content: " ☞ ";
}

span.error::after {
  content: " ☜ ";
}

span.error.broken-link::after {
  content: " 🔗 ";
}

.firstterm {
  font-weight: bold;
}

.trademark::after {
  content: "™";
}

.trademark.trade::after {
  content: "™";
}

.trademark.copyright::after {
  content: "©";
  vertical-align: super;
  font-size: 85%;
}

.trademark.registered::after {
  content: "®";
  vertical-align: super;
  font-size: 85%;
}

.trademark.service::after {
  content: "℠";
  vertical-align: super;
}

.literal {
  white-space: nowrap;
}

.nobreak {
  white-space: nowrap;
}

.break {
  white-space: normal;
}

.xlink-arc-list {
  display: none;
}

/* ============================================================ */

.debug {
  display: block;
  padding-top: 1em;
  padding-bottom: 1em;
  padding-left: 1em;
  background-color: var(--debug-background-color);
  color: var(--debug-color);
}

.remark {
  border: var(--remark-border-style);
  border-radius: 3px;
  padding-left: 4px;
  padding-right: 4px;
  color: var(--on-surface-color);
  background: repeating-linear-gradient(
    135deg,
    var(--focused-color),
    var(--focused-color) 5px,
    var(--enabled-color) 5px,
    var(--enabled-color) 10px
  );
}

span.remark {
  margin-left: 0.5em;
  margin-right: 0.5em;
}

.keycap {
  font-family: var(--mono-family);
  background-color: var(--verbatim-odd-background-color);
  border: 1px solid var(--numbered-number-color);
  border-radius: 3px;
  padding-top: 0.1em;
  padding-bottom: 0.1em;
  padding-left: 0.3em;
  padding-right: 0.3em;
  margin: 0;
  font-size: 85%;
  box-shadow: var(--keycap-box-shadow);
}

code, span.screen, p span.command {
  font-family: var(--mono-family);
  background-color: var(--verbatim-odd-background-color);
  border: 1px solid var(--numbered-number-color);
  border-radius: 6px;
  padding-top: 0.1em;
  padding-bottom: 0.1em;
  padding-left: 0.3em;
  padding-right: 0.3em;
  margin: 0;
  font-size: 85%;
}

code.email {
  background-color: inherit;
  border: inherit;
  font-size: 95%;
  padding-left: 0;
  padding-right: 0;
}

pre code {
  border: none;
  background-color: inherit;
  padding: inherit;
  font-size: inherit;
  margin: inherit;
}

pre.screen {
  display: block;
  overflow-x: scroll;
}

.userinput {
  font-weight: bold;
}

a, a:visited {
  color: inherit;
}

a.pmuj {
  text-decoration: none;
}

.xref-area,
.xref-areaset,
.xref-co {
  text-decoration: none;
}

.xref {
  font-style: italic;
}

.xref-area,
.xref-areaset,
.xref-co,
.xref-step,
.xref-listitem {
  font-style: normal;
}

.xref .prefix,
.xref .sep,
.xref-question .label,
.xref-answer .label {
  font-style: normal;
}

.footnote-number a,
.footnote-number a:visited {
  text-decoration: none;
}

/* ============================================================ */

h1, h2, h3, h4, h5, h6 {
  color: var(--on-header-color);
  background-color: var(--header-color);
  font-family: var(--title-family);
  font-weight: 600;
  font-style: normal;
}

h1 { font-weight: 400;
  margin-top: 4rem;
  margin-bottom: 1.5rem;
  font-size: 3.2rem;
  line-height: 1;
}

h2 { font-weight: 400;
  margin-top: 2.1rem;
  margin-bottom: 2rem;
  font-size: 2.2rem;
  line-height: 1;
}

h3 { font-weight: 400;
  font-size: 1.7rem;
  margin-top: 2rem;
  margin-bottom: 0;
  line-height: 1;
}

h4 { font-weight: 400;
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 0;
  line-height: 1;
}

h5 { font-weight: 400;
  font-size: 1.0rem;
  margin-top: 1.5rem;
  margin-bottom: 0;
  line-height: 1;
}

h6 { font-weight: 400;
  font-size: 1.0rem;
  margin-top: 1.5rem;
  margin-bottom: 0;
  line-height: 1;
}

.title {
  color: var(--on-header-color);
  background-color: var(--header-color);
  font-weight: bold;
  font-family: var(--title-family);
  margin-bottom: 0.5em;
}    

.book > .list-of-titles > .lot > .title,
.part > .list-of-titles > .lot > .title {
  font-weight: 400;
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.titlepage .authorgroup {
  margin-bottom: 2rem;
}

/* ============================================================ */

.titlepage {
  text-align: center;
  margin-bottom: 2em;
  background-color: var(--hydrogen-color-blue);
  color: var(--hydrogen-color-white);
  margin-bottom: 2rem;
  margin-top: 1rem;
  padding-left: 1rem;
  padding-right: 1rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
  border: 1px solid var(--hydrogen-color-black);
  border-radius: 0.5em;
}

.titlepage .abstract {
  text-align: left;
  margin-left: 5%;
  margin-right: 5%;
  border: 1px solid var(--hydrogen-color-black);
  padding-left: 1em;
  padding-right: 1em;
  border-radius: 0.5em;
  background-color: var(--hydrogen-color-white);
  color: var(--hydrogen-color-black);
}


.titlepage .abstract .title {
  background-color: var(--hydrogen-color-white);
  color: var(--hydrogen-color-black);
}

.titlepage hr {
  color: var(--hydrogen-color-white);
}

.chapter .titlepage {
  text-align: center;
  margin-bottom: 2em;
  background-color: var(--hydrogen-color-blue);
  color: var(--hydrogen-color-white);
  margin-bottom: 2rem;
  margin-top: 1rem;
  padding-left: 1rem;
  padding-right: 1rem;
  padding-top: 0em;
  padding-bottom: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5em;
}

.titlepage h1, .titlepage h2, .titlepage h3 {
  margin-top: 0;
  background-color: inherit;
  color: inherit;
}

.sect1 .titlepage {
  text-align: center;
  margin-bottom: 2em;
  background-color: var(--title-color);
  color: var(--hydrogen-color-blue-dark);
  margin-bottom: 2rem;
  margin-top: 1rem;
  padding-left: 1rem;
  padding-right: 1rem;
  padding-top: 1rem;
  padding-bottom: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5em;
}

.sect1 .titlepage h2, .sect2 .titlepage h3 {
  margin-bottom: 0em;
}

.revhistory .title {
  border-bottom: 1px solid var(--border-color);
}

.revhistory td p {
  margin: 0;
  padding: 0;
}

/* ============================================================ */

.toc {
  margin-top: 1em;
}

.toc li {
  text-indent: -2em;
  padding-left: 2em;
}

ul.toc,
.toc ul {
  list-style: none;
  margin-top: 0;
  margin-bottom: 0;
  padding-left: 0;
}

.bibliolist,
.glosslist {
  margin-top: 1em;
}

/* ============================================================ */

.generated-index ul {
  list-style: none;
  padding-left: 2rem;
}

.generated-index > ul,
.generated-indexdiv > ul {
  padding-left: 0;
}

/* ============================================================ */

.formalgroup {
  margin-top: 1em;
}

.formalgroup.pgwide div {
  display: inline-block;
}

table {
  table-layout: fixed;
  border-spacing: 0;
  border-collapse: collapse;
}

figure.pgwide table {
  width: 100%;
}

.inlinemediaobject,
.inlinemediaobject div {
  display: inline-block;
}

td, th {
  padding: 0.25em;
  text-align: left;
}

td.bottom,
th.bottom {
  vertical-align: bottom;
}

td.middle,
th.middle {
  vertical-align: middle;
}

td.top,
th.top {
  vertical-align: top;
}

td.center,
th.center {
  text-align: center;
}

td.left,
th.left {
  text-align: left;
}

td.right,
th.right {
  text-align: right;
}

td.justify,
th.justify {
  text-align: justify;
}

td.empty,
th.empty {
}

td.btop,
th.btop {
  border-top: var(--table-border-style);
}

td.bleft,
th.bleft {
  border-left: var(--table-border-style);
}

td.colsep,
th.colsep {
  border-right: var(--table-border-style);
}

td.rowsep,
th.rowsep {
  border-bottom: var(--table-border-style);
}

td.char,
th.char {
  font-family: monospace;
  text-align: right;
}

.media-wrapper {
  width: 100%;
}

.media {
  display: inline-block;
}

.viewport-table {
  display: table;
}

.viewport-row {
  display: table-row;
}

.viewport-cell {
  display: table-cell;
}

.viewport {
  display: inline-block;
}

.intrinsic-width img,
.intrinsic-width svg {
  width: 100%;
}

.intrinsic-height img,
.intrinsic-height svg {
  height: 100%;
}

.intrinsic-both img,
.intrinsic-both svg {
  width: 100%;
  height: 100%;
}

.note, .warning, .info, .caution, .tip {
  margin-left: 5%;
  border-radius: 0.5rem;
  min-height: 3rem;
  padding-top: 0;
  margin-bottom: 1rem;
  margin-top: 1rem;
  margin-right: 4px;
  display: table;
  width: 95%;
}

.note > div, .warning > div, .info > div, .caution > div, .tip > div {
  display: table-row;
}

.note .icon, .warning .icon, .info .icon, .caution .icon, .tip .icon {
  display: table-cell;
  padding-top: 1.5rem;
  width: 4.5rem;
  text-align: center;
  vertical-align: top;
  font-size: 3rem;
  color: var(--note-border-color);
}

.note .body, .warning .body, .info .body, .caution .body, .tip .body {
  display: table-cell;
  padding-right: 1rem;
}

.note {
  border: var(--note-border-style);
  background-color: var(--note-color);
  color: var(--on-note-color);
} 

.note .icon {
  color: var(--note-border-color);
}    

.note .title {
  background-color: var(--note-color);
  color: var(--on-note-color);
}

.note code {
  border-color: var(--note-border-color);
  background-color: var(--note-color);
}

.tip {
  border: var(--tip-border-style);
  background-color: var(--tip-color);
  color: var(--on-tip-color);
} 

.tip .icon {
  color: var(--tip-border-color);
}    

.tip .title {
  background-color: var(--tip-color);
  color: var(--on-tip-color);
}

.tip code {
  border-color: var(--tip-border-color);
  background-color: var(--tip-color);
}

.important {
  border: var(--important-border-style);
  background-color: var(--important-color);
  color: var(--on-important-color);
} 

.important .icon {
  padding-top: 2rem;
  color: var(--important-border-color);
}

.important .title {
  background-color: var(--important-color);
  color: var(--on-important-color);
}

.important code {
  background-color: var(--important-color);
  border-color: var(--important-border-color);
}

.caution {
  border: var(--caution-border-style);
  background-color: var(--caution-color);
  color: var(--on-caution-color);
} 

.caution .icon {
  color: var(--caution-border-color);
}

.caution .title {
  background-color: var(--caution-color);
  color: var(--on-caution-color);
}

.caution code {
  background-color: var(--caution-color);
  border-color: var(--caution-border-color);
}

.warning {
  border: var(--warning-border-style);
  background-color: var(--warning-color);
  color: var(--on-warning-color);
} 

.warning .icon {
  color: var(--warning-border-color);
}

.warning .title {
  background-color: var(--warning-color);
  color: var(--on-warning-color);
}

.warning code {
  background-color: var(--warning-color);
  border-color: var(--warning-border-color);
}

.danger {
  border: var(--danger-border-style);
  background-color: var(--danger-color);
  color: var(--on-danger-color);
} 

.danger .icon {
  color: var(--danger-border-color);
}    

.danger .title {
  background-color: var(--danger-color);
  color: var(--on-danger-color);
}

.danger code {
  background-color: var(--danger-color);
  border-color: var(--danger-border-color);
}

/* ============================================================ */

.pre-wrap {
  overflow-x: scroll;
  margin-top: 1em;
  margin-bottom: 1em;
}

pre {
  margin-top: 0;
  margin-bottom: 0;
}

pre.address,
pre.literallayout {
  font-family: var(--body-family);
}

pre.monospaced {
  font-family: var(--mono-family);
}

pre.programlisting,
pre.screen {
  line-height: 1.25em;
  background-color: var(--verbatim-even-background-color);
  padding-top: 1.25em;
  padding-left: 2%;
  max-width: 100%;
}

/* Adapted from https://stackoverflow.com/questions/41306797/html-how-to-add-line-numbers-to-a-source-code-block */

pre span.line:nth-child(odd) {
  background-color: var(--verbatim-odd-background-color);
}

pre span.line:nth-child(even) {
  background-color: var(--verbatim-even-background-color);
}

/* Make the background of even lines the same as odd lines for
   "monochrome" listings. */
pre.monochrome span.line:nth-child(even) {
  background-color: var(--verbatim-odd-background-color);
}

pre.address span.line:nth-child(odd),
pre.literallayout span.line:nth-child(odd) {
  background-color: inherit;
}

pre.address span.line:nth-child(even),
pre.literallayout span.line:nth-child(even) {
  background-color: inherit;
}

pre span.ln {
  font-family: var(--mono-family);
  width: 0;
  padding-top: 4px;
  padding-bottom: 4px;
  text-align: right;
}

pre {
  display: table;
  table-layout: fixed;
  /* width: 100%; /* anything but auto, otherwise fixed layout not guaranteed */ */
  white-space: pre;
}

pre span.line {
  display: table-row;
}

pre span.ln {
  display: table-cell;
}

pre.numbered span.ln {
  background-color: var(--numbered-background-color);
  user-select: none;
}

pre.numbered span.ln {
  width: 4em;
  padding-right: 0.5em;
}

pre span.ld {
  display: table-cell;
  padding-top: 4px;
  padding-bottom: 4px;
}

pre.numbered span.ld {
  border-left: var(--numbered-separator-style);
  padding-left: 0.25em;
}

pre span.line.highlight {
  background-color: var(--verbatim-line-highlight-background-color);
  color: var(--verbatim-line-highlight-color);
}

/* ============================================================ */

.productionset .productions {
  display: table;
  table-layout: fixed;
  width: 100%;
}

.productionset .productions .production {
  display: table-row;
}

.productionset .productions .production .lhs,
.productionset .productions .production .rhs,
.productionset .productions .production .lhssep {
  font-family: var(--mono-family);
}

.productionset .productions .production .lhs,
.productionset .productions .production .lhssep,
.productionset .productions .production .rhs,
.productionset .productions .production .constraint {
  display: table-cell;
}

.productionset .productions .production .lhs {
  width: 25%;
  white-space: nowrap;
}

.productionset .productions .production .lhssep {
  width: 3em;
  text-align: center;
}

.productionset .productions .production .constraint {
  width: 2em;
}

.nonterminal {
}

.lineannotation {
  font-family: var(--body-family);
  font-style: italic;
}

.constraintdef {
  min-height: 3rem;
  margin-left: 1rem;
  padding-top: 1rem;
  margin-bottom: 1rem;
}

.constraintdef .title {
  font-weight: bold;
  font-family: var(--title-family);
}

/* ============================================================ */

.qandadiv {
  margin-top: 1em;
}

.qandalist .qanda {
  display: table;
  table-layout: fixed;
  width: 100%;
}

.qandaentry .question,
.qandaentry .answer {
  display: table-row;
}

.qandaentry .question .label,
.qandaentry .answer .label {
  display: table-cell;
  width: 3em;
}

.qandaentry .question .body,
.qandaentry .answer .body {
  display: table-cell;
}

.question p,
.answer p {
  margin-top: 0;
}

/* ============================================================ */

.funcprototype table td {
  padding: 0;
}

.funcprototype table.params {
  margin-top: 1em;
}

.funcprototype table.params td {
  padding-right: 1em;
}

.funcprototype {
  margin-top: 1em;
  font-family: var(--mono-family);
}

.funcprototype .paramdef {
  font-family: var(--mono-family);
}

.funcprototype .parameter {
  font-family: var(--body-family);
  font-style: italic;
}

.funcprototype .function {
  font-weight: bold;
}

/* ============================================================ */

.linegroup {
  margin-left: 2em;
}

.speaker::after {
  content: ":";
}

.linegroup .speaker {
  margin-left: -2em;
}

/* ============================================================ */

.formalpara .title {
  display: inline-block;
  font-weight: bold;
}

.formalpara .title::after {
  content: ".";
  margin-right: 0.5em;
}

.formalpara .titlepunct::after {
  content: "";
  margin-right: 0.5em;
}

blockquote {
  margin-top: 1em;
}

blockquote p {
  margin-top: 0;
}

blockquote .title {
  font-weight: bold;
  font-family: var(--title-family);
  margin-bottom: 0.25em;
}

blockquote p + .attribution {
  /* Tuck it back up closer to the preceding paragraph */
  margin-top: -1em;
}

.attribution::before {
  content: "—";
}

.attribution {
  margin-left: 50%;
}

/* ============================================================ */

.revhistory .title {
  font-weight: bold;
  font-family: var(--title-family);
  margin-bottom: 0.5em;
}

/* ============================================================ */

.figure,
.example,
.equation {
  padding: 1em;
}

.figure,
.example {
  border: 1px solid var(--border-color);
}

.figure .title {
  font-family: var(--title-family);
}

.figure .media {
  width: 100%;
  text-align: center;
}

.figure img {
  margin-left: auto;
  margin-right: auto;
}

.floatcenter {
  text-align: center;
}

.floatright {
  float: right;
}

.floatleft {
  float: left;
}

/* ============================================================ */

.cmdsynopsis {
  margin-top: 1em;
  margin-bottom: 1em;
  margin-left: 3em;
  text-indent: -3em;
}

.synopfragment {
  margin-top: 1em;
}

.synopfragmentref {
  font-style: italic;
}

.synopfragmentref a,
.synopfragmentref a:visited {
  text-decoration: none;
}

.synopfragmentref-number {
  font-family: var(--mono-family);
  font-style: normal;
  font-weight: bold;
  font-size: 10pt;

}

.synopfragment .synopfragmentref-number {
}

.cmdsynopsis .command,
.cmdsynopsis .cmdpunct,
.cmdsynopsis .group,
.cmdsynopsis .arg {
  font-family: var(--mono-family);
}

.calloutlist dl dt {
  clear: both;
  float: left;
  width: 1.25em;
}

.calloutlist dl dd {
  margin-left: 1.25em;
  line-height: 1.5rem; /* tuck them together a little */
}

.calloutlist dd > p:first-child {
  margin-top: 0;
}

a.callout-bug,
a.callout-bug:visited {
  text-decoration: none;
}

/* ============================================================ */

.revadded {
  background-color: var(--revadded-background-color);
  color: var(--revadded-color);
}

.revadded::before {
  content: var(--revadded-before);
}

.revadded::after {
  content: var(--revadded-after);
}

.revchanged {
  background-color: var(--revchanged-background-color);
  color: var(--revchanged-color);
}

.revchanged::before {
  content: var(--revchanged-before);
}

.revchanged::after {
  content: var(--revchanged-after);
}

.revdeleted {
  background-color: var(--revdeleted-background-color);
  color: var(--revdeleted-color);
}

.revdeleted::before {
  content: var(--revdeleted-before);
}

.revdeleted::after {
  content: var(--revdeleted-after);
}

.revoff .revadded,
.revoff .revchanged {
  background-color: inherit;
  color: inherit;
}

.revoff .revdeleted {
  display: none;
}

.revoff .revadded::before,
.revoff .revchanged::before,
.revoff .revdeleted::before,
.revoff .revadded::after,
.revoff .revchanged::after,
.revoff .revdeleted::after {
  content: "";
}

/* ============================================================ */

ul[db-mark='disc'],
li[db-mark='disc'],
ul[db-mark='bullet'],
li[db-mark='bullet'] {
  list-style-type: disc;
}

ul[db-mark='round'],
li[db-mark='round'] {
  list-style-type: circle;
}

ul[db-mark='box'],
li[db-mark='box'] {
  list-style-type: square;
}

/* ============================================================ */

.simplelistvert,
.simplelisthoriz {
  display: table;
}

.simplelist .row {
  display: table-row;
}

.simplelist .row span {
  display: table-cell;
}

/* ============================================================ */


.glossdiv {
  margin-top: 1em;
}

/* ============================================================ */

.sidebar {
  background-color: var(--sidebar-color);
  color: var(--on-sidebar-color);
  padding-left: 1em;
  padding-right: 1em;
  padding-bottom: 1em;
  padding-top: 1em;
  border-radius: 0.5em;
}

.sidebar .title {
  background-color: var(--sidebar-color);
  color: var(--on-sidebar-color);
}

/* ============================================================ */

.msgexplan {
  margin-left: 2rem;
}

/* ============================================================ */

.foreignphrase {
  font-style: italic;
}

.bold {
  font-weight: bold;
}

.strikethrough {
  text-decoration: line-through;
}

.underline {
  text-decoration: underline;
}

em {
  font-style: italic;
}

em em {
  font-style: normal;
}

em em em {
  font-style: italic;
}

em em em em {
  font-style: normal;
}

em em em em em {
  font-style: italic;
}

em em me em em em {
  font-style: normal;
}

/* ============================================================ */
/* Inline annotations */

.annotations {
  border-top: var(--annotation-separator-border-style);
  padding-top: 1em;
  margin-top: 6em;
}

a.annomark,
a.annomark:visited {
  text-decoration: none;
  color: inherit;
}

.annotation-wrapper {
  margin-bottom: 1em;
}

.annotation-body {
  border: var(--annotation-body-border-style);
  border-bottom-left-radius: 0.25em;
  border-bottom-right-radius: 0.25em;;
}

.annotation-header {
  height: 2em;
  background-color: var(--annotation-header-background-color);
  color: var(--annotation-header-color);
  padding-left: 1em;
  padding-right: 0.5em;
  border-bottom: var(--annotation-header-separator-border-style);
}

.annotation-header .annotation-close {
  float: right;
}

.annotation-content {
  padding-left: 1em;
  padding-right: 1em;
  padding-top: 0.5em;
  padding-bottom: 0.5em;
}

/* ============================================================ */
/* XLink extended links. The ".js" classes only apply if
   JavaScript XLink processing is available and enabled.
 */

.xlink .source {
  border-bottom: 1px dotted black;
  cursor: pointer;
}

.xlink-arc-list {
  display: inline;
  font-style: normal;
  cursor: pointer;
  font-size: 70%;
}

.xlink-arc-list.js::before {
  content: " "; /* thin space */
}

.nhrefs.js .xlink-arc-delim {
  display: none;
}

.nhrefs.js {
  font-style: normal;
  display: none;
  margin-left: 4px;
  margin-right: 0;
  padding-bottom: 1em;
  border: 2px solid var(--primary-variant-color);
  border-radius: 4px;
  z-index: 2;
  background-color: var(--primary-color);
  color: var(--on-primary-color);
}

.nhrefs.js .arc {
  display: list-item;
  margin-left: 1.5em;
  padding-right: 1em;
}

.nhrefs.js .xlink-arc-title {
  display: block;
  background-color: var(--primary-variant-color);
  color: var(--on-primary-variant-color);
  margin-left: 0;
  margin-bottom: 0.5em;
  text-align: center;
}

/* ============================================================ */
/* Javascript controls */

.js-controls-wrapper {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: var(--modal-overlay-color);
}

.js-controls-body {
  background-color: var(--js-controls-color);
  color: var(--on-js-controls-color);
  border: var(--js-controls-border-style);
  max-width: 300px;
  margin-top: 5px;
  margin-left: 10px;
  opacity: 1;
}

.js-controls-header {
  height: 2em;
  background-color: var(--js-controls-header-color);
  color: var(--on-js-controls-header-color);
  padding-left: 1em;
  padding-right: 0.5em;
  border-bottom: var(--js-controls-header-separator-border-style);
}

.js-controls-header .js-controls-close {
  float: right;
  cursor: pointer;
  font-size: 125%;
}

.js-controls-header .js-controls-title {
  padding-top: 0.1em;
}

.js-controls-content {
  background-color: var(--js-controls-color);
  color: var(--on-js-controls-color);
  padding: 1em;
}

.js-controls-buttons {
  text-align: center;
  padding-bottom: 0.5em;
}

.js-controls-buttons button {
  display: inline-block;
  text-align: center;
  font-size: 14pt;
  background-color: var(--enabled-color);
  border-radius: 5px;
  border: 2px solid var(--primary-color);
  color: var(--on-surface-color);
  text-align: center;
  padding: 5px;
  width: 3em;
  transition: all 0.5s;
  cursor: pointer;
  margin: 5px;
}

.js-controls-reload {
  text-align: center;
  background-color: var(--error-color);
  color: var(--on-error-color);
}

/* ============================================================ */
/* Javascript annotations */

.popup-annotation-wrapper {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: var(--modal-overlay-color);
}

.popup-annotation-body {
  background-color: var(--popup-annotation-color);
  color: var(--on-popup-annotation-color);
  border: var(--popup-annotation-border-style);
  width: 50%;
  min-height: 40%;
  max-height: 50%;
  margin-top: 10%;
  margin-left: auto;
  margin-right: auto;
  border-radius: 0.15em;
  display: grid;
  grid-template-rows: auto 1fr;
  grid-template-columns: 100%;
}

.wide .popup-annotation-body {
  width: 80%;
}

.tall .popup-annotation-body {
  max-height: 80%;
}

.popup-annotation-header {
  height: 2em;
  background-color: var(--popup-annotation-header-color);
  color: var(--on-popup-annotation-header-color);
  padding-left: 1em;
  padding-right: 0.5em;
  border-bottom: var(--popup-annotation-header-separator-border-style);
}

.popup-annotation-header .annotation-close {
  float: right;
  cursor: pointer;
  font-size: 125%;
}

.popup-annotation-header .annotation-title {
  padding-top: 0.1em;
}

.popup-annotation-content {
  padding-left: 1em;
  padding-right: 1em;
  padding-top: 0.5em;
  padding-bottom: 0.5em;
  overflow: scroll;
}

.annotation-close {
  padding-top: 4px;
}

/* ============================================================ */

nav table td.previous {
  text-align: left;
}

nav table td.up {
  text-align: center;
}

nav table td.next {
  text-align: right;
}

nav.bottom {
  background-color: var(--nav-background-color);
}

nav.bottom table {
  border-top: 2px solid var(--border-color);
  margin-bottom: 1rem;
}

nav.bottom table .previous {
  padding-left: 4rem;
}

nav.bottom table .next {
  padding-right: 4rem;
}

nav.top {
  position: fixed;
  width: 100%;
  background-color: var(--nav-background-color);
  opacity: 1;
}

body.home nav.top {
  display: none;
}

nav.top div {
  border-bottom: 1px solid var(--border-color);
  padding-left: 4rem;
  padding-right: 4rem;
}

body {
  width: 100%;
  max-width: 50rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
  padding-top: 3rem;
}

.book + .book {
  border-top: var(--division-separator-border-style);
  margin-top: 6em;
  padding-top: 6em;
}

.refentry + .refentry {
  border-top: var(--division-separator-border-style);
  margin-top: 6em;
  padding-top: 6em;
}

.dedication > .titlepage,
.article > .dedication > .titlepage,
.chapter > .titlepage,
.preface > .titlepage,
.appendix > .titlepage,
.part > .titlepage {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 0.25rem solid var(--border-color);
}

.dedication + .dedication > header {
  border-top: inherit;
}

.colophon {
  margin-top: 6rem;
  margin-bottom: 6rem;
  margin-left: 6rem;
  margin-right: 6rem;
  border: 1px solid var(--border-color);
  border-radius: 1em;
  padding-left: 2em;
  padding-right: 2em;
  padding-bottom: 2em;
}

.set .titlepage h1,
.book .titlepage h1 {
  text-align: center;
}

.footnotes {
  margin-top: 2em;
}

.footnotes div.footnote-number {
  display: inline-block;
  width: 0.75rem;
  height: 0;
  margin-left: -0.75rem;
  margin-top: 0.5rem;
  vertical-align: top;
}

.footnotes div.footnote-body {
  display: inline-block;
}

.footnotes .footnote {
  margin-left: 0.75rem;
}

.footnote p {
  margin-bottom: 0;
}

.footnotes hr {
  max-width: 1in;
  margin: 0;
}

.calloutlist dl {
  display: grid;
  grid-template-columns: max-content auto;
}

.calloutlist dl dt {
  float: none;
  width: inherit;
  grid-column-start: 1;
}

.calloutlist dl dd {
  margin-left: 1em;
  grid-column-start: 2;
}

//////////////////////////////////////////////////////////////////////
/////////////////////////////// Hydrogen custom //////////////////////
//////////////////////////////////////////////////////////////////////


abbr {
  font-family: var(--mono-family);
  font-size: 0.92em;
  letter-spacing: 1px;
}

img {
  width: auto;
  height: auto;
  max-width: 100%;
  transition: 0.3s;
  cursor: pointer;
  border-radius: 5px;
}

.inlinemediaobject > img {
  max-height: 1rem;
}

.figure-contents > .mediaobject {
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.figure-contents > .mediaobject > img {
  max-height: 31.5rem;

}
.informalfigure > .mediaobject > img {
    padding: 0em;
}
.figure-contents > .mediaobject > img, .inlinemediaobject > img {
    padding: 0em;
}

.informalfigure > .mediaobject {
  display: flex;
  align-items: center;
  justify-content: start;
}


.informalfigure > .mediaobject > img {
  max-height: 8.75rem;
  max-width: 70%;
}

.navheader tbody, .navfooter tbody {
  color: var(--hydrogen-color-blue-dark);
  font-weight: bold;
}
.navheader tbody a, .navfooter tbody a {
  color: var(--on-background-color);
  font-weight: normal;
}
.navheader hr {
  color: var(--hydrogen-color-blue-dark);
}
  

/* ============================================================ */

@media screen and (max-width: 1199px) {
  nav.top div {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  nav.bottom table .previous {
    padding-left: 2rem;
  }

  nav.bottom table .next {
    padding-right: 2rem;
  }
}

@media screen and (max-width: 767px) {
  nav.top div {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  nav.bottom table .previous {
    padding-left: 1rem;
  }

  nav.bottom table .next {
    padding-right: 1rem;
  }
}