@charset "UTF-8";:root{--gray-100:#f8f9fa;--gray-200:#e9ecef;--gray-500:#adb5bd;--icon-filter:none;--hint-color-info:#6bf;--hint-color-warning:#fd6;--hint-color-danger:#f66;--background-body:#fff;--background:#efefef;--background-alt:#f7f7f7;--selection:#9e9e9e;--text-main:#363636;--text-bright:#000;--text-muted:#70777f;--links:#0076d1;--focus:#0096bfab;--border:#dbdbdb;--code:#000;--animation-duration:0.1s;--button-base:#d0cfcf;--button-hover:#9b9b9b;--scrollbar-base:#a4a4a4;--scrollbar-thumb:var(--scrollbar-base);--scrollbar-thumb-hover:var(--button-hover);--form-placeholder:#949494;--form-text:#1d1d1d;--variable:#39a33c;--highlight:#ff0;--select-arrow:svg-load('./assets/select-arrow.svg', fill: #161f27)}@media(prefers-color-scheme:dark){:root{--gray-100:rgba(255, 255, 255, 0.1);--gray-200:rgba(255, 255, 255, 0.2);--gray-500:rgba(255, 255, 255, 0.5);--icon-filter:brightness(0) invert(1);--hint-color-info:#6bf;--hint-color-warning:#fd6;--hint-color-danger:#f66;--background-body:#202b38;--background:#161f27;--background-alt:#1a242f;--selection:#1c76c5;--text-main:#dbdbdb;--text-bright:#fff;--text-muted:#a9b1ba;--links:#41adff;--focus:#0096bfab;--border:#526980;--code:#ffbe85;--animation-duration:0.1s;--button-base:#0c151c;--button-hover:#040a0f;--scrollbar-hover:#03070a;--scrollbar-thumb:var(--button-hover);--scrollbar-thumb-hover:var(--scrollbar-hover);--form-placeholder:#a9a9a9;--form-text:#fff;--variable:#d941e2;--highlight:#efdb43;--select-arrow:svg-load('./assets/select-arrow.svg', fill: #efefef)}}/*!normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css*/html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}small{font-size:80%}medium{font-size:90%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}button,[type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner{border-style:none;padding:0}button:-moz-focusring,[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type=checkbox],[type=radio]{box-sizing:border-box;padding:0}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}.flex{display:flex}.flex-auto{flex:auto}.flex-even{flex:1 1}.flex-wrap{flex-wrap:wrap}.display-flex{display:flex}.justify-start{justify-content:flex-start}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-evenly{justify-content:space-evenly}.align-center{align-items:center}.mx-auto{margin:0 auto}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.hidden{display:none}input.toggle{height:0;width:0;overflow:hidden;opacity:0;position:absolute}.clearfix::after{content:"";display:table;clear:both}html{font-size:16px;scroll-behavior:smooth;touch-action:manipulation}body{min-width:20rem;color:var(--text-main);background:var(--background-body);letter-spacing:.33px;font-weight:400;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;box-sizing:border-box}body *{box-sizing:inherit}h1,h2,h3,h4,h5{font-weight:400}a{text-decoration:none;color:var(--links)}img{vertical-align:baseline}:focus{outline-style:auto;outline-color:currentColor;outline-color:-webkit-focus-ring-color}aside nav ul{padding:0;margin:0;list-style:none}aside nav ul li{margin:1em 0;position:relative}aside nav ul a{display:block}aside nav ul a:hover{opacity:.5}aside nav ul ul{padding-inline-start:1rem}ul.pagination{display:flex;justify-content:center;list-style-type:none;padding-inline-start:0}ul.pagination .page-item a{padding:1rem}.container{max-width:80rem;margin:0 auto}.book-icon{filter:var(--icon-filter)}.book-brand{margin-top:0;margin-bottom:1rem}.book-brand img{height:1.5em;width:1.5em;margin-inline-end:.5rem}.book-menu{flex:0 0 16rem;font-size:.875rem}.book-menu .book-menu-content{width:16rem;padding:1rem;background:var(--background-body);position:fixed;top:0;bottom:0;overflow-x:hidden;overflow-y:auto}.book-menu a,.book-menu label{color:inherit;cursor:pointer;word-wrap:break-word}.book-menu a.active{color:var(--links)}.book-menu input.toggle+label+ul{display:none}.book-menu input.toggle:checked+label+ul{display:block}.book-menu input.toggle+label::after{content:"▸"}.book-menu input.toggle:checked+label::after{content:"▾"}body[dir=rtl] .book-menu input.toggle+label::after{content:"◂"}body[dir=rtl] .book-menu input.toggle:checked+label::after{content:"▾"}.book-section-flat{margin:2rem 0}.book-section-flat>a,.book-section-flat>span,.book-section-flat>label{font-weight:bolder}.book-section-flat>ul{padding-inline-start:0}.book-page{min-width:20rem;flex-grow:1;padding:1rem}.book-post{margin-bottom:3rem}.book-header{display:none;margin-bottom:1rem}.book-header label{line-height:0}.book-header img.book-icon{height:1.5em;width:1.5em}.book-search{position:relative;margin:1rem 0;border-bottom:1px solid transparent}.book-search input{width:100%;padding:.5rem;border:0;border-radius:.25rem;background:var(--gray-100);color:var(--text-main)}.book-search input:required+.book-search-spinner{display:block}.book-search .book-search-spinner{position:absolute;top:0;margin:.5rem;margin-inline-start:calc(100% - 1.5rem);width:1rem;height:1rem;border:1px solid transparent;border-top-color:var(--text-main);border-radius:50%;animation:spin 1s ease infinite}@keyframes spin{100%{transform:rotate(360deg)}}.book-search small{opacity:.5}.book-toc{flex:0 0 16rem;font-size:.75rem}.book-toc .book-toc-content{width:16rem;padding:1rem;position:fixed;top:0;bottom:0;overflow-x:hidden;overflow-y:auto}.book-toc img{height:1em;width:1em}.book-toc nav>ul>li:first-child{margin-top:0}.book-footer{padding-top:1rem;font-size:.875rem}.book-footer img{height:1em;width:1em;margin-inline-end:.5rem}.book-comments{margin-top:1rem}.book-languages{margin-block-end:2rem}.book-languages .book-icon{height:1em;width:1em;margin-inline-end:.5em}.book-languages ul{padding-inline-start:1.5em}.book-menu-content,.book-toc-content,.book-page,.book-header aside,.markdown{transition:.2s ease-in-out;transition-property:transform,margin,opacity,visibility;will-change:transform,margin,opacity}@media screen and (max-width:52rem){#toc-control{display:inline}.book-toc{display:none}.book-header{display:block}#toc-control:focus~main label[for=toc-control]{outline-style:auto;outline-color:currentColor;outline-color:-webkit-focus-ring-color}#toc-control:checked~main .book-header aside{display:block}.book-header label[for=menu-control] img{display:none}}@media screen and (max-width:40rem){#menu-control,#toc-control{display:inline}.book-menu{visibility:hidden;margin-inline-start:-16rem;font-size:16px;z-index:1}.book-toc{display:none}.book-header{display:block}.book-header label[for=menu-control] img{display:inline}#menu-control:focus~main label[for=menu-control]{outline-style:auto;outline-color:currentColor;outline-color:-webkit-focus-ring-color}#menu-control:checked~main .book-menu{visibility:initial}#menu-control:checked~main .book-menu .book-menu-content{transform:translateX(16rem);box-shadow:0 0 .5rem rgba(0,0,0,.1)}#menu-control:checked~main .book-page{opacity:.25}#menu-control:checked~main .book-menu-overlay{display:block;position:absolute;top:0;bottom:0;left:0;right:0}#toc-control:focus~main label[for=toc-control]{outline-style:auto;outline-color:currentColor;outline-color:-webkit-focus-ring-color}#toc-control:checked~main .book-header aside{display:block}body[dir=rtl] #menu-control:checked~main .book-menu .book-menu-content{transform:translateX(-16rem)}}@media screen and (min-width:80rem){.book-page,.book-menu .book-menu-content,.book-toc .book-toc-content{padding:2rem 1rem}}@font-face{font-family:roboto;font-style:normal;font-weight:400;font-display:swap;src:local(""),url(fonts/roboto-v27-latin-regular.woff2)format("woff2"),url(fonts/roboto-v27-latin-regular.woff)format("woff")}@font-face{font-family:roboto;font-style:normal;font-weight:700;font-display:swap;src:local(""),url(fonts/roboto-v27-latin-700.woff2)format("woff2"),url(fonts/roboto-v27-latin-700.woff)format("woff")}@font-face{font-family:roboto mono;font-style:normal;font-weight:400;font-display:swap;src:local(""),url(fonts/roboto-mono-v13-latin-regular.woff2)format("woff2"),url(fonts/roboto-mono-v13-latin-regular.woff)format("woff")}body{font-family:roboto,sans-serif}code{font-family:roboto mono,monospace;background:var(--background);color:var(--code)}@media print{.book-menu,.book-footer,.book-toc{display:none}.book-header,.book-header aside{display:block}main{display:block!important}body,pre,code,summary,details,button,input,textarea{background-color:#fff}button,input,textarea{border:1px solid #000}body,h1,h2,h3,h4,h5,h6,pre,code,button,input,textarea,footer,summary,strong{color:#000}summary::marker{color:#000}summary::-webkit-details-marker{color:#000}tbody tr:nth-child(even){background-color:#f2f2f2}a{color:#00f;text-decoration:underline}}.markdown{line-height:1.6}.markdown>:first-child{margin-top:0}.markdown h1,.markdown h2,.markdown h3,.markdown h4,.markdown h5,.markdown h6{font-weight:400;line-height:1;margin-top:1.5em;margin-bottom:1rem}.markdown h1 a.anchor,.markdown h2 a.anchor,.markdown h3 a.anchor,.markdown h4 a.anchor,.markdown h5 a.anchor,.markdown h6 a.anchor{opacity:0;font-size:.75em;vertical-align:middle;text-decoration:none}.markdown h1:hover a.anchor,.markdown h1 a.anchor:focus,.markdown h2:hover a.anchor,.markdown h2 a.anchor:focus,.markdown h3:hover a.anchor,.markdown h3 a.anchor:focus,.markdown h4:hover a.anchor,.markdown h4 a.anchor:focus,.markdown h5:hover a.anchor,.markdown h5 a.anchor:focus,.markdown h6:hover a.anchor,.markdown h6 a.anchor:focus{opacity:initial}.markdown h4,.markdown h5,.markdown h6{font-weight:bolder}.markdown h5{font-size:.875em}.markdown h6{font-size:.75em}.markdown b,.markdown optgroup,.markdown strong{font-weight:bolder}.markdown a{text-decoration:none}.markdown a:hover{text-decoration:underline}.markdown a:visited{color:var(--links)}.markdown img{max-width:100%;height:auto}.markdown code{padding:0 .25rem;background:var(--gray-200);border-radius:.25rem;font-size:.875em}.markdown pre{padding:1rem;background:var(--gray-100);border-radius:.25rem;overflow-x:auto}.markdown pre code{padding:0;background:0 0}.markdown p{word-wrap:break-word}.markdown blockquote{margin:1rem 0;padding:.5rem 1rem .5rem .75rem;border-inline-start:.25rem solid var(--gray-200);border-radius:.25rem}.markdown blockquote :first-child{margin-top:0}.markdown blockquote :last-child{margin-bottom:0}.markdown table{overflow:auto;display:block;border-spacing:0;border-collapse:collapse;margin-top:1rem;margin-bottom:1rem}.markdown table tr th,.markdown table tr td{padding:.5rem 1rem;border:1px solid var(--gray-200)}.markdown table tr:nth-child(2n){background:var(--gray-100)}.markdown hr{height:1px;border:none;background:var(--gray-200)}.markdown ul,.markdown ol{padding-inline-start:2rem}.markdown dl dt{font-weight:bolder;margin-top:1rem}.markdown dl dd{margin-inline-start:0;margin-bottom:1rem}.markdown .highlight table tr td:nth-child(1) pre{margin:0;padding-inline-end:0}.markdown .highlight table tr td:nth-child(2) pre{margin:0;padding-inline-start:0}.markdown details{padding:1rem;border:1px solid var(--gray-200);border-radius:.25rem}.markdown details summary{line-height:1;padding:1rem;margin:-1rem;cursor:pointer}.markdown details[open] summary{margin-bottom:0}.markdown figure{margin:1rem 0}.markdown figure figcaption p{margin-top:0}.markdown-inner>:first-child{margin-top:0}.markdown-inner>:last-child{margin-bottom:0}.markdown .book-expand{margin-top:1rem;margin-bottom:1rem;border:1px solid var(--gray-200);border-radius:.25rem;overflow:hidden}.markdown .book-expand .book-expand-head{background:var(--gray-100);padding:.5rem 1rem;cursor:pointer}.markdown .book-expand .book-expand-content{display:none;padding:1rem}.markdown .book-expand input[type=checkbox]:checked+.book-expand-content{display:block}.markdown .book-tabs{margin-top:1rem;margin-bottom:1rem;border:1px solid var(--gray-200);border-radius:.25rem;overflow:hidden;display:flex;flex-wrap:wrap}.markdown .book-tabs label{display:inline-block;padding:.5rem 1rem;border-bottom:1px transparent;cursor:pointer}.markdown .book-tabs .book-tabs-content{order:999;width:100%;border-top:1px solid var(--gray-100);padding:1rem;display:none}.markdown .book-tabs input[type=radio]:checked+label{border-bottom:1px solid var(--links)}.markdown .book-tabs input[type=radio]:checked+label+.book-tabs-content{display:block}.markdown .book-tabs input[type=radio]:focus+label{outline-style:auto;outline-color:currentColor;outline-color:-webkit-focus-ring-color}.markdown .book-columns{margin-left:-1rem;margin-right:-1rem}.markdown .book-columns>div{margin:1rem 0;min-width:10rem;padding:0 1rem}.markdown a.book-btn{display:inline-block;font-size:.875rem;color:var(--links);line-height:2rem;padding:0 1rem;border:1px solid var(--links);border-radius:.25rem;cursor:pointer}.markdown a.book-btn:hover{text-decoration:none}.markdown .book-hint.info{border-color:#6bf;background-color:rgba(102,187,255,.1);padding-top:.1em;padding-bottom:.1em;margin-top:.2em;margin-bottom:.2em}.markdown .book-hint.warning{border-color:#fd6;background-color:rgba(255,221,102,.1);padding-top:.1em;padding-bottom:.1em;margin-top:.2em;margin-bottom:.2em}.markdown .book-hint.danger{border-color:#f66;background-color:rgba(255,102,102,.1);padding-top:.1em;padding-bottom:.1em;margin-top:.2em;margin-bottom:.2em}.markdown .book-hint.ok{border-color:#6f6;background-color:rgba(102,255,102,.1);padding-top:.1em;padding-bottom:.1em;margin-top:.2em;margin-bottom:.2em}.markdown .book-hint.debug{border-color:#66f;background-color:rgba(102,102,255,.1);padding-top:.1em;padding-bottom:.1em;margin-top:.2em;margin-bottom:.2em}.markdown .book-hint .markdown-inner{padding-top:.1em;padding-bottom:.1em;margin-top:.2em;margin-bottom:.2em}@media screen and (max-width:52rem){.markdown .book-hint .book-columns .text-center{text-align:left}.markdown .book-hint .book-columns .text-right{text-align:left}.markdown .book-hint .book-columns .markdown-inner{display:block;clear:both}.markdown .book-hint .book-columns{display:block}}html{scrollbar-color:var(--scrollbar-thumb)var(--background-body);scrollbar-width:thin;scrollbar-highlight-color:var(--scrollbar-thumb-hover)}::-webkit-scrollbar{height:10px;width:10px}::-webkit-scrollbar-track{background:var(--background);border-radius:6px}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:6px}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}::selection{background-color:var(--selection);color:var(--text-bright)}h1{font-size:2.2em;margin-top:0}h1,h2,h3,h4,h5,h6{margin-bottom:12px;margin-top:24px}h1,h2,h3,h4,h5,h6,strong{color:var(--text-bright)}h1,h2,h3,h4,h5,h6,b,strong,th{font-weight:600}q::before{content:none}q::after{content:none}blockquote,q{border-left:4px solid var(--focus);margin:1.5em 0;padding:.5em 1em;font-style:normal}blockquote>footer{font-style:normal;border:0}blockquote cite{font-style:normal}address{font-style:normal}mark{background-color:var(--highlight);border-radius:2px;padding:0 2px;color:#000}a>code,a>strong{color:inherit}body{line-height:1.4;color:var(--text-main);background:var(--background-body);text-rendering:optimizeLegibility}a{text-decoration:none;color:var(--links)}a:hover{text-decoration:underline}img,video{max-width:100%;height:auto}hr{border:none;border-top:1px solid var(--border)}table{border-collapse:collapse;margin-bottom:10px;width:100%;table-layout:fixed}table caption{text-align:left}td,th{padding:6px;text-align:left;vertical-align:top;word-wrap:break-word}thead{border-bottom:1px solid var(--border)}tfoot{border-top:1px solid var(--border)}tbody tr:nth-child(even){background-color:var(--background)}tbody tr:nth-child(even) button{background-color:var(--background-alt)}tbody tr:nth-child(even) button:hover{background-color:var(--background-body)}details{display:flex;flex-direction:column;align-items:flex-start;background-color:var(--background-alt);padding:10px 10px 0;margin:1em 0;border-radius:6px;overflow:hidden}details[open]{padding:10px}details>:last-child{margin-bottom:0}details[open] summary{margin-bottom:10px}summary{display:list-item;background-color:var(--background);padding:10px;margin:-10px -10px 0;cursor:pointer;outline:none}summary:hover,summary:focus{text-decoration:underline}details>:not(summary){margin-top:0}summary::-webkit-details-marker{color:var(--text-main)}dialog{background-color:var(--background-alt);color:var(--text-main);border:none;border-radius:6px;border-color:var(--border);padding:10px 30px}dialog>header:first-child{background-color:var(--background);border-radius:6px 6px 0 0;margin:-10px -30px 10px;padding:10px;text-align:center}dialog::backdrop{background:#0000009c;backdrop-filter:blur(4px)}footer{border-top:1px solid var(--border);padding-top:10px;color:var(--text-muted)}body>footer{margin-top:40px}