/*! normalize.css v2.1.3 | MIT License | git.io/normalize */article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block}audio,canvas,video{display:inline-block}audio:not([controls]){display:none;height:0}[hidden],template{display:none}html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}a{background:transparent}a:focus{outline:thin dotted}a:active,a:hover{outline:0}h1{font-size:2em;margin:0.67em 0}abbr[title]{border-bottom:1px dotted}b,strong{font-weight:bold}dfn{font-style:italic}hr{-webkit-box-sizing:content-box;box-sizing:content-box;height:0}mark{background:#ff0;color:#000}code,kbd,pre,samp{font-family:monospace, serif;font-size:1em}pre{white-space:pre-wrap}q{quotes:"\201C" "\201D" "\2018" "\2019"}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sup{top:-0.5em}sub{bottom:-0.25em}img{border:0}svg:not(:root){overflow:hidden}figure{margin:0}fieldset{border:1px solid #c0c0c0;margin:0 2px;padding:0.35em 0.625em 0.75em}legend{border:0;padding:0}button,input,select,textarea{font-family:inherit;font-size:100%;margin:0}button,input{line-height:normal}button,select{text-transform:none}button,html input[type="button"],input[type="reset"],input[type="submit"]{-webkit-appearance:button;cursor:pointer}button[disabled],html input[disabled]{cursor:default}input[type="checkbox"],input[type="radio"]{-webkit-box-sizing:border-box;box-sizing:border-box;padding:0}input[type="search"]{-webkit-appearance:textfield;-webkit-box-sizing:content-box;box-sizing:content-box}input[type="search"]::-webkit-search-cancel-button,input[type="search"]::-webkit-search-decoration{-webkit-appearance:none}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}textarea{overflow:auto;vertical-align:top}table{border-collapse:collapse;border-spacing:0}html{position:relative;min-height:100%}body{margin:0 0 110px;line-height:1.5;color:#333333;font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";font-size:100%;font-weight:normal;text-rendering:optimizeLegibility}@media print{body{color:#000000;font-size:87.5%}}.content-margin-wrap,.uncollapsible-header{position:relative;margin:0 auto;padding-bottom:10px;width:92%;max-width:1140px}::-moz-selection{background-color:#f2783c}::selection{background-color:#f2783c}.crappy-browser-warning-box{margin:20px 0;border-right:15px solid #c0392b;border-left:15px solid #c0392b;background-color:#e49087;padding:10px 20px;overflow:auto;font-size:1.2em}.crappy-browser-warning-box p{margin:0}.crappy-browser-warning-box a{border-color:#6c52c9;color:#6c52c9}.crappy-browser-warning-box a:hover{border-color:#5237b1;color:#5237b1}img{display:block;margin:0 auto;max-width:100%}img.no-shadow{-webkit-box-shadow:none;box-shadow:none}figcaption{margin:10px auto;text-align:center;color:#443e3a;font-size:0.875em;font-style:italic}@media print{figcaption{color:#000000}}dl{border-radius:5px;background-color:#262626;padding:15px;color:#ffffff}dl::before{font-size:1.5em;font-weight:300;content:"Definitions:"}dl dt{font-style:italic}dl dt:first-child{padding-top:10px}dl dd{padding-bottom:10px}dl dd:last-child{padding-bottom:0}dl a{color:#ffffff}@media print{dl{border:2px solid #000000;background-color:#ffffff;color:#000000}dl a{color:#000000}}blockquote{margin:1.5em 0.625em;border-left:10px solid #262626;background-color:#333333;padding:0.5em 0.625em;color:#ffffff}@media print{blockquote{border-left:2px solid #000000;background-color:#ffffff;color:#000000}}hr{border:0;background-color:#262626;height:2px}table{margin:0 auto;-webkit-box-shadow:0 0 5px #262626;box-shadow:0 0 5px #262626;border-collapse:separate;text-align:center}@media print{table{-webkit-box-shadow:none;box-shadow:none;border:1px solid gray}}table thead{-webkit-box-shadow:0 2px 2px #666666;box-shadow:0 2px 2px #666666;background-color:#262626}@media print{table thead{background-color:#ffffff;border-bottom:1px solid gray}}table thead th{padding:20px;color:#ffffff;font-size:1.4em;font-weight:300}@media print{table thead th{color:#000000;font-weight:normal}}table tbody tr:nth-child(even){background-color:#f2f2f2}table tbody tr:nth-child(odd){background-color:#ffffff}table tbody td{border-right:1px solid #f2783c;padding:10px}table tbody td:last-child{border-right:0}@media print{table tbody td{border-color:gray}}h1,h2,h3,h4,h5,h6{font-weight:bold}h1{line-height:1.5;font-size:2em}@media (min-width: 43.75em){h1{line-height:1.5;font-size:2.5em}}@media (min-width: 56.25em){h1{line-height:1.5;font-size:3em}}h2{line-height:1.15384615;font-size:1.625em}@media (min-width: 43.75em){h2{line-height:1.25;font-size:2em}}@media (min-width: 56.25em){h2{line-height:1.25;font-size:2.25em}}h3{line-height:1.13636364;font-size:1.375em}@media (min-width: 43.75em){h3{line-height:1.25;font-size:1.5em}}@media (min-width: 56.25em){h3{line-height:1.25;font-size:1.75em}}h4{line-height:1.11111111;font-size:1.125em}@media (min-width: 43.75em){h4{line-height:1.22222222}}a{border-bottom:2px solid #f2783c;padding-bottom:1px;text-decoration:none;color:#f2783c}a:hover{border-color:#d05011;color:#d05011}a::-moz-selection{color:#ffffff}a::selection{color:#ffffff}@media print{a{border-color:#000000;color:#000000}a:after{content:" [" attr(href) "] "}a[name]{display:none}a[rel]{border-bottom:0}a[rev]{display:none}a[rel]:after,a[rev]:after{content:none}}sup>a{border:0;margin-left:0.125em;text-decoration:underline}ol.topic-list{margin-left:0.83em}ol.topic-list li{margin:0.83em 0;font-size:1.5em;font-weight:300}#site-header{position:relative;z-index:2;background-color:#333333;width:100%;min-height:50px;overflow:hidden;color:#ffffff}@media handheld, only screen and (max-width: 800px){#site-header{text-align:center}}@media handheld, only screen and (max-width: 480px){#site-header{overflow:visible}}#site-header .content-margin-wrap,#site-header .uncollapsible-header{padding:0}@media handheld, only screen and (max-width: 480px){#site-header .content-margin-wrap,#site-header .uncollapsible-header{overflow:hidden}}#site-header h1{display:block;position:relative;float:left;z-index:5;margin:0.1em 0;font-size:2em;font-weight:300}@media print, handheld, only screen and (max-width: 800px){#site-header h1{float:none}}@media handheld, only screen and (max-width: 480px){#site-header h1{top:50%;float:left;-webkit-transform:translateY(-50%);transform:translateY(-50%);margin:0}}@media handheld, only screen and (max-width: 380px){#site-header h1{font-size:1.5em}}#site-header h1 a,#site-header h1 a:visited,#site-header h1 a:hover{border:0;text-decoration:none;color:#ffffff}@media print{#site-header h1 a,#site-header h1 a:visited,#site-header h1 a:hover{color:#000000}#site-header h1 a:after,#site-header h1 a:visited:after,#site-header h1 a:hover:after{content:none}}@media print{#site-header{background-color:#ffffff;text-align:center}}@media handheld, only screen and (max-width: 480px){.uncollapsible-header{height:3.125em}}#header-toggle{display:none;position:relative;top:50%;float:right;-webkit-transform:translateY(-50%);transform:translateY(-50%);z-index:5;margin:0;border:0;background-color:transparent;background-image:none;padding:0;width:44px;height:44px}@media handheld, only screen and (max-width: 480px){#header-toggle{display:block}}#header-toggle span.icon-bar{display:block;margin:auto;border-radius:1px;background-color:#f2783c;width:22px;height:2px}#header-toggle span.icon-bar+span.icon-bar{margin-top:4px}#header-toggle:focus{outline:none}div.collapsible{-webkit-transition:300ms cubic-bezier(0.19, 1, 0.22, 1);transition:300ms cubic-bezier(0.19, 1, 0.22, 1);z-index:4;background-color:#333333;width:100%;-webkit-transform-origin:top;transform-origin:top}@media handheld, only screen and (max-width: 480px){div.collapsible{position:absolute;-webkit-box-shadow:0 2px 1px 1px rgba(0,0,0,0.5);box-shadow:0 2px 1px 1px rgba(0,0,0,0.5)}div.collapsible.collapsed{-webkit-transform:scaleY(0);transform:scaleY(0)}div.collapsible.expanded{-webkit-transform:scaleY(1);transform:scaleY(1)}}#site-navigation{float:right;z-index:4;font-weight:300}@media handheld, only screen and (max-width: 800px){#site-navigation{float:none}}#site-navigation ul{display:inline-block;padding:0;list-style:none}#site-navigation li{display:inline-block;padding-right:10px}#site-navigation a{color:#ffffff}@media print{#site-navigation{display:none}}#site-wide-search{display:inline-block;padding-bottom:10px}#site-wide-search #site-wide-search-box{-webkit-transition:all 200ms cubic-bezier(0.25, 0.25, 0.75, 0.75);transition:all 200ms cubic-bezier(0.25, 0.25, 0.75, 0.75);border:2px solid #262626;border-radius:2px;background-color:#262626;background-image:none;padding:5px;outline:none;color:#ffffff;-webkit-appearance:none}#site-wide-search #site-wide-search-box:focus{border:2px solid #f2783c}#category-navigation{clear:both;z-index:4;width:100%;text-align:center;color:#ffffff}#category-navigation>p{margin:0;text-align:center;text-decoration:none}#category-navigation a,#category-navigation a:hover{display:block;border-bottom:0;width:100%;height:100%;color:#ffffff}#category-navigation ul{margin:0;padding:0}#category-navigation li{display:inline-block;-webkit-transition:all 125ms cubic-bezier(0.25, 0.1, 0.25, 1);transition:all 125ms cubic-bezier(0.25, 0.1, 0.25, 1);padding:5px 0;width:25%;min-height:44px;text-align:center;line-height:44px}#category-navigation li:hover{background-color:#f2783c}@media handheld, only screen and (max-width: 480px){#category-navigation li{width:100%}}@media handheld, only screen and (max-width: 480px){#category-navigation .content-margin-wrap,#category-navigation .uncollapsible-header{width:100%;max-width:100%}}@media print{#category-navigation{display:none}}li.selected-category{background-color:#d05011}#article-header{background-color:#262626;padding:15px 0;width:100%;height:auto;text-align:center;color:#ffffff}@media print{#article-header{border-bottom:1px solid #000000;background-color:#ffffff;padding-top:0;color:#000000}}#article-header h1{font-weight:300;margin:0.5rem 0}@media print{.footnotes{border-top:2px solid #000000}.footnotes hr{display:none}}#article-footer{background-color:#262626;padding:10px 0;overflow:hidden;color:#ffffff}#article-footer a{color:#ffffff}@media print{#article-footer{display:none}}#article-footer #article-footer-left{float:left;width:50%}#article-footer #article-footer-right{float:right;width:50%;text-align:right}#article-footer #article-contribution-text{clear:both;width:100%}.float-left-fig,.float-right-fig{margin:1em 0;width:40%}@media handheld, only screen and (max-width: 768px){.float-left-fig,.float-right-fig{float:none;margin:0;width:100%}}.float-left-fig{float:left;margin-right:1.5em}.float-right-fig{float:right;margin-left:1.5em}#site-footer{position:absolute;bottom:0;left:0;background-color:#333333;width:100%;height:110px;color:#ffffff}#site-footer a{color:#ffffff}#site-footer p{margin:0;padding-top:10px}@media print{#site-footer{display:none}}#menu-instructions{text-align:center;font-size:1.3em}@media handheld, only screen and (max-width: 480px){#menu-instructions{display:none}}#mobile-menu-instructions{background-color:#d05011;padding:1em 0;font-size:1.2em}@media handheld, only screen and (min-width: 480px){#mobile-menu-instructions{display:none}}#mobile-menu-instructions p{margin:0}.unit-section{display:block;-webkit-animation:fadeIn 250ms ease;animation:fadeIn 250ms ease}.unit-section li{padding:5px 0}.unit-section.unit-section.disabled{display:none;-webkit-animation:fadeOut 250ms ease;animation:fadeOut 250ms ease}@-webkit-keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@-webkit-keyframes fadeOut{from{opacity:1}to{opacity:0}}@keyframes fadeOut{from{opacity:1}to{opacity:0}}#content-404{text-align:center}#content-404>header{padding-bottom:20px}#content-404 h1{margin:0}#content-404 h2{margin:0}#error-page-search-box{-webkit-transition:all 200ms cubic-bezier(0.25, 0.25, 0.75, 0.75);transition:all 200ms cubic-bezier(0.25, 0.25, 0.75, 0.75);outline:none;border:0;border-bottom:2px solid #333333;border-radius:0;padding:0;width:100%;font-size:2.5em;-webkit-appearance:none}@media (min-width: 56.25em){#error-page-search-box{line-height:1.5;font-size:3em}}#error-page-search-box:focus{border-bottom:2px solid #f2783c}