/* DocBook xslTNG version 2.7.1, https://xsltng.docbook.org */:root{--symbol-fonts: "Arial Unicode", "Apple Symbols", "Symbol", "Symbola_hint";--body-family: serif, var(--symbol-fonts);--title-family: sans-serif, var(--symbol-fonts);--mono-family: monospace, var(--symbol-fonts)}:root{--background-color: #fffff8;--surface-color: #fffff8;--primary-color: #7f7f7f;--primary-variant-color: #5f5f5f;--secondary-color: #ffbc42;--error-color: #ffafaf;--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: #ffee42;--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);--panelset-color: #f7f7f0;--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);--default-font-size: 13.5pt;--default-line-height: 1.75rem;--line-number-width: 4em;--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: var(--primary-color);--note-border-style: 2pt solid var(--note-border-color);--note-color: var(--surface-color);--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)}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)}body{padding-top:0;padding-left:0;padding-right:0;padding-bottom:0;margin-top:0;margin-bottom:0;margin-left:1rem;margin-right:1rem}.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:.5em}span.error::before{content:" ☞ "}span.error::after{content:" ☜ "}span.error.broken-link::after{content:" 🔗 "}.unhandled{font-family:monospace;background-color:var(--error-border-color);color:var(--on-error-color);font-weight:bold}div.unhandled{width:100%}.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}.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:.5em;margin-right:.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:.1em;padding-bottom:.1em;padding-left:.3em;padding-right:.3em;margin:0;font-size:85%;box-shadow:var(--keycap-box-shadow)}.keycombo .keycap+.keycap{margin-left:.4em}code{font-family:var(--mono-family);background-color:var(--verbatim-odd-background-color);border:1px solid var(--focused-color);border-radius:6px;padding-top:.1em;padding-bottom:.1em;padding-left:.3em;padding-right:.3em;margin:0;font-size:85%}.toc code{background-color:inherit;border:none;padding:inherit}code.email{background-color:inherit;border:inherit;font-size:95%;padding-left:0;padding-right:0}pre code,.cmdsynopsis code{border:none;background-color:inherit;padding:0;font-size:.85rem;margin:0}pre>code{padding:initial}.literal{background-color:inherit}.nobreak{white-space:nowrap}.break{white-space:normal}.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:normal;font-style:normal;page-break-after:avoid}h1{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:1rem;margin-top:1.5rem;margin-bottom:0;line-height:1}h6{font-weight:400;font-size:1rem;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:.5em}cite.title{font-weight:inherit;font-family:inherit}.bibliography .titleabbrev{font-style:italic}.bibliography .titleabbrev:before{content:" ("}.bibliography .titleabbrev:after{content:")"}.set>.list-of-titles>.lot>.title,.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:1rem}header{page-break-after:avoid}header .authorgroup{margin-bottom:2rem}.article>header{text-align:center;margin-bottom:2em}.article>header .abstract{text-align:left;margin-left:5em;margin-right:5em;border:1px solid var(--border-color);padding-left:1em;padding-right:1em;border-radius:.5em}.set>header,.book>header{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:.5em}.set>header h1,.book>header h1{margin-top:0}.revhistory .title{font-weight:bold;font-family:var(--title-family);margin-bottom:.5em;border-bottom:1px solid var(--border-color)}.revhistory table{width:100%}.revhistory table tr th,.revhistory table tr td{vertical-align:top}.revhistory td p{margin:0;padding:0}.lot{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}.iso690 .author{text-transform:uppercase}.iso690.article .part .firstname,.iso690.article .part .givenname{text-transform:none}.iso690.patent .country,.iso690.patent .patenttype{font-style:italic}.iso690 .title{font-weight:inherit;font-family:inherit;color:inherit;background-color:inherit;margin-bottom:inherit}.index-list ul{list-style:none;padding-left:2rem}.index-list>ul,.generated-index>ul,.generated-indexdiv>ul{padding-left:0}.pgwide,.pgwide .fgbody{width:100%}.formalgroup{margin-top:1rem}.fgbody>div{display:inline-block}.pgwide .fgbody>div{width:calc(50% - .5rem)}.fgbody>div:nth-child(even){margin-left:.5rem}.fgbody>.figure,.fgbody>.example,.fgbody>.equation{padding-top:inherit}table{table-layout:fixed;border-spacing:0;border-collapse:collapse}.inlinemediaobject,.inlinemediaobject div{display:inline-block}.mediaobject .caption{font-family:var(--title-family);font-size:80%;margin-left:2em;margin-right:2em;font-style:italic}.mediaobject .caption p{margin-top:0}td,th{padding:.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.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}div>.viewport-table{display:table;width:100%}span>.viewport-table{display:inline-table}.viewport-row{display:table-row}.viewport-cell{display:table-cell}.viewport-cell>span{display:block;line-height:1rem}.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%}.admonition{border-radius:.5rem;min-height:3rem;padding-top:0;margin-bottom:1rem;margin-top:1rem;margin-right:4px;display:table;width:100%}.admonition>div{display:table-row}.admonition .icon{display:table-cell;padding-top:1.5rem;width:4.5rem;text-align:center;vertical-align:top;font-size:300%;color:var(--note-border-color)}.admonition .body{display:table-cell;padding-right:1rem}.admonition header{padding-top:.5rem}.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)}.note pre code{background-color:inherit;border-color:inherit}.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)}.tip pre code{background-color:inherit;border-color:inherit}.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)}.important pre code{background-color:inherit;border-color:inherit}.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)}.caution pre code{background-color:inherit;border-color:inherit}.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)}.warning pre code{background-color:inherit;border-color:inherit}.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)}.danger pre code{background-color:inherit;border-color:inherit}.pre-wrap{overflow-x:auto;margin-top:1em;margin-bottom:1em}pre{margin-top:0;margin-bottom:0;margin-left:.5em;margin-right:.5em}pre sup{line-height:0}pre.verblines{margin-left:0;margin-right:0}pre.address,pre.literallayout{font-family:var(--body-family);margin-left:auto;margin-right:auto}pre.monospaced{font-family:var(--mono-family)}pre.programlisting,pre.screen{line-height:1.25rem}pre.verblines .nsep{display:none}pre.verblines span.line:nth-child(odd){background-color:var(--verbatim-odd-background-color)}pre.verblines span.line:nth-child(even){background-color:var(--verbatim-even-background-color)}pre.verblines.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.verblines span.ln{font-family:var(--mono-family);width:4px;padding-top:4px;padding-bottom:4px;text-align:right;color:var(--on-background-color)}pre.verblines.numbered span.ln{width:var(--line-number-width)}pre.address span.ln,pre.literallayout span.ln{padding-top:0;padding-bottom:0}pre.verblines{display:table;table-layout:fixed;width:100%;white-space:pre}pre.verblines span.line{display:table-row}pre.verblines span.ln{display:table-cell}pre.numbered span.ln{background-color:var(--numbered-background-color);user-select:none;-webkit-user-select:none}pre.numbered span.ln{width:var(--line-number-width);margin-right:.5em}pre.verblines span.ld{display:table-cell;padding-top:4px;padding-bottom:4px;padding-left:4px}pre.address span.ld,pre.literallayout span.ld{padding-top:0;padding-bottom:0}pre.verblines.numbered span.ld{border-left:var(--numbered-separator-style);padding-left:.25em}pre.verblines span.line.highlight{background-color:var(--verbatim-line-highlight-background-color);color:var(--verbatim-line-highlight-color)}table.verbatim{width:100%}table.verbatim tr td{width:calc(100vw - var(--line-number-width));padding-left:0;padding-right:0;padding-top:0;padding-bottom:0}table.verbatim tr td:first-child{width:var(--line-number-width);padding-left:0;padding-right:0}table.verbatim tr td pre{margin-left:0;margin-right:0}.hljs-ln-n{padding-right:1em;text-align:right}.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}.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:.5em}.formalpara .titlepunct::after{content:"";margin-right:.5em}blockquote{margin-top:1em}blockquote p{margin-top:0}blockquote .title{font-weight:bold;font-family:var(--title-family);margin-bottom:.25em}blockquote p+.attribution{margin-top:-1em}.attribution::before{content:"—"}.attribution{margin-left:50%}.formalobject+.formalobject{margin-top:1rem}.figure,.example,.equation{padding-top:1em}.figure,.example{border:1px solid var(--border-color);padding-left:.5rem;padding-right:.5rem}.figure details p,.example details p{margin-left:1rem;margin-right:1rem}.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-wrap{margin-top:1em;margin-bottom:1em}.cmdsynopsis{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}.cmdsynopsis .command,.cmdsynopsis .cmdpunct,.cmdsynopsis .group,.cmdsynopsis .arg{font-family:var(--mono-family)}.calloutlist{margin-bottom:1em}.calloutlist dl{margin-bottom:0}.calloutlist dl dt{clear:both;float:left;width:1.25em}.calloutlist dl dd{margin-left:1.25em;line-height:1.5rem}.calloutlist dd>p:first-child{margin-top:0}.calloutlist dd:last-child>p:last-child{margin-bottom: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}.glossdiv dl dt{padding-left: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:.5em}.sidebar .title{background-color:var(--sidebar-color);color:var(--on-sidebar-color)}.sidebar code{background-color:var(--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}.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:.25em;border-bottom-right-radius:.25em}.annotation-header{height:2em;background-color:var(--annotation-header-background-color);color:var(--annotation-header-color);padding-left:1em;padding-right:.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:.5em;padding-bottom:.5em}.xlink .source{border-bottom:1px dotted #000;cursor:pointer}.xlink-arc-list{display:inline;font-style:normal;cursor:pointer;font-size:70%}.xlink-arc-list.js::before{content:" "}.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:.5em;text-align:center}:root{--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);--z-index-on-top-of-the-world: 100}html{color:var(--on-background-color);background-color:var(--background-color);width:100%;line-height:var(--default-line-height);font-size:var(--default-font-size);scroll-padding-top:40px;height:100%}@supports(font-size-adjust: 1){html{font-size-adjust:.5}}body{height:100%;min-height:100%;margin-left:0;margin-right:0;display:grid;grid-template-rows:1fr auto;grid-template-columns:100%}body.draft{background-image:url("draft-left.svg");background-position:2% 2%;background-repeat:no-repeat;background-size:10%;background-attachment:fixed}main{max-width:50rem;margin-left:auto;margin-right:auto}@media screen and (max-width: 60rem){main{margin-left:1rem;margin-right:1rem}}@media screen and (min-width: 70rem){main{min-width:50rem}}main{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}.book>.dedication>header,.article>.dedication>header,.book .chapter>header,.book .preface>header,.book .appendix>header,.book .part>header{margin-top:4rem;padding-top:2rem;border-top:.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 header h1,.book header h1{text-align:center}.footnotes{margin-top:2em}.table-footnotes{margin-top:0}.footnotes div.footnote-number{display:inline-block;width:.75rem;height:0;margin-left:-0.75rem;margin-top:.5rem;vertical-align:top}.footnotes div.footnote-body{display:inline-block}.footnotes .footnote{margin-left:.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}.callout-bug{user-select:none}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);z-index:var(--z-index-on-top-of-the-world)}nav.bottom table{border-top:2px solid var(--border-color);margin-bottom:1rem;width:100%}nav.bottom table .previous{padding-left:4rem}nav.bottom table .next{padding-right:4rem}nav.top{position:fixed;top:0;width:100%;background-color:var(--nav-background-color);opacity:1;z-index:var(--z-index-on-top-of-the-world)}body.home nav.top{display:none}nav.top div{border-bottom:1px solid var(--border-color);padding-left:4rem;padding-right:4rem}.copyVerbIcon{border:1px solid var(--hovered-color);border-radius:.2rem}.copyVerbIcon:hover{cursor:pointer;border:1px solid var(--primary-color)}.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:.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:.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:.1em}.popup-annotation-content{padding-left:1em;padding-right:1em;padding-top:.5em;padding-bottom:.5em;overflow:auto}.annotation-close{padding-top:4px}.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:.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:.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:.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 .5s;cursor:pointer;margin:5px}.js-controls-reload{text-align:center;background-color:var(--error-color);color:var(--on-error-color)}.fallback{border:solid 2px var(--error-color);padding:1rem;border-radius:4px}.panelset{display:flex;flex-wrap:wrap}.panelset label{order:1;display:block;padding:1rem 2rem;margin-right:.2rem;cursor:pointer;transition:background ease .2s;border-top-left-radius:.5em;border-top-right-radius:.5em;color:var(--primary-color)}.panelset .paneltab{order:99;flex-grow:1;width:100%;display:none;padding:1rem;border:2px solid var(--focused-color);background-color:var(--panelset-color)}.panelset input[type=radio]{display:none}.panelset input[type=radio]:checked+label{border-bottom:2px solid var(--focused-color);border-left:1px solid var(--focused-color);background-color:var(--panelset-color);color:var(--on-background-color)}.panelset label:hover{border:2px solid var(--focused-color);color:var(--on-background-color);border-top-left-radius:.5em;border-top-right-radius:.5em}.panelset input[type=radio]:checked+label+.paneltab{display:block}.laser-pointer{cursor:url("data:image/gif;base64,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") 9 9,auto}@media screen{.xref-pagenum::after{content:"#";font-style:normal}}@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}}.xlink .source{border-bottom:1px dotted #000;cursor:pointer}.xlink-arc-list{display:inline;font-style:normal;cursor:pointer;font-size:70%}.xlink-arc-list.js::before{content:" "}.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:#afafaf;margin-left:0;margin-bottom:.5em;text-align:center}.oxy_insert{background-color:transparent;color:#090}.oxy_insert::before{content:var(--revadded-before)}.oxy_insert::after{content:var(--revadded-after)}.oxy_delete{background-color:transparent;color:#c33;text-decoration:line-through}.oxy_delete::before{content:var(--revdeleted-before)}.oxy_delete::after{content:var(--revdeleted-after)}:root{--background-color: inherit}.book>header{border:none}