/*! normalize.css v3.0.2 | MIT License | git.io/normalize */html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}article,aside,figcaption,figure,footer,header,hgroup,main,menu,nav,section{display:block}audio,canvas,progress,video{display:inline-block;vertical-align:baseline}audio:not([controls]){display:none;height:0}[hidden],template{display:none}a{background-color:transparent}a:active,a:hover{outline:0}abbr[title]{border-bottom:1px dotted}b,strong{font-weight:bold}dfn{font-style:italic}h1{font-size:2em;margin:0.67em 0}mark{background:#ff0;color:#000}small{font-size:80%}img{border:0}svg:not(:root){overflow:hidden}figure{margin:1em 40px}hr{-moz-box-sizing:content-box;box-sizing:content-box;height:0}pre{overflow:auto}code,kbd,pre,samp{font-family:monospace, monospace;font-size:1em}button,input,optgroup,select,textarea{color:inherit;font:inherit;margin:0}button{overflow:visible}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}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}input{line-height:normal}input[type="checkbox"],input[type="radio"]{box-sizing:border-box;padding:0}input[type="number"]::-webkit-inner-spin-button,input[type="number"]::-webkit-outer-spin-button{height:auto}input[type="search"]{-webkit-appearance:textfield;-moz-box-sizing:content-box;-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}fieldset{border:1px solid #c0c0c0;margin:0 2px;padding:0.35em 0.625em 0.75em}legend{border:0;padding:0}textarea{overflow:auto}optgroup{font-weight:bold}table{border-collapse:collapse;border-spacing:0}td,th{padding:0}/*! HTML5 Boilerplate v5.0 | MIT License | http://h5bp.com/ */html{color:#222;background-color:#fbefef;font-size:1em;line-height:1.4}@media (prefers-color-scheme: dark){html{color:#fbefef;background-color:#222}}::-moz-selection{background:#b3d4fc;text-shadow:none}::selection{background:#b3d4fc;text-shadow:none}hr{display:block;height:1px;border:0;border-top:1px solid #ccc;margin:1em 0;padding:0}@media (prefers-color-scheme: dark){hr{border-top:1px solid #333}}audio,canvas,iframe,img,svg,video{vertical-align:middle}fieldset{border:0;margin:0;padding:0}textarea{resize:vertical}.browserupgrade{margin:0.2em 0;background:#ccc;color:#000;padding:0.2em 0}body{font-family:sans-serif;line-height:1.25;font-size:125%;font-variant-numeric:oldstyle-nums lining-nums}.wf-active body{font-family:pt-sans, sans-serif}.wf-active h1,.wf-active h2,.wf-active h3,.wf-active h4{font-family:pt-serif, serif;font-weight:700}h1,h2,h3,h4{margin-top:0;font-weight:normal;clear:both;scroll-margin-top:1rem;color:#400}@media (prefers-color-scheme: dark){h1,h2,h3,h4{color:#fbefef}}h1:target:before,h2:target:before,h3:target:before,h4:target:before{content:"→";margin-right:0.25em}.many-headers h2{border-bottom:solid 3px;padding-bottom:0.25em}.many-headers h3{border-bottom:solid 1px;padding-bottom:0.25em}strong,p,li{scroll-margin-top:1rem}strong:target:before,p:target:before,li:target:before{content:"→";margin-right:0.25em}h1{margin-bottom:0}h2,h3,h4{margin-bottom:0.5em}.entry-content p:not(:first-of-type){hyphens:auto;hyphenate-limit-lines:2;hyphenate-limit-chars:6 3 2;hyphenate-limit-zone:8%;hyphenate-limit-last:always}body,caption,th,td,input,textarea,select,option,legend,fieldset,h1,h2,h3,h4,h5,h6{font-size-adjust:0.5}@media (min-width: 43.75em){html{line-height:1.375}}h1{font-size:1.625em;line-height:1.15384615}@media (min-width: 43.75em){h1{font-size:2em}}@media (min-width: 56.25em){h1{font-size:2.25em}}h2{font-size:1.375em;line-height:1.13636364}@media (min-width: 43.75em){h2{font-size:1.5em}}@media (min-width: 56.25em){h2{font-size:1.75em}}h3{font-size:1.125em;line-height:1.11111111}@media (min-width: 43.75em){h3{line-height:1.22222222}}blockquote{margin-right:0;font-size:0.95em}.quoted p{quotes:"“" "”" "‘’" "’"}.quoted p:before{content:open-quote;margin-left:-0.9ch}.quoted p:after{content:close-quote}.lede,.entry-content-post>p:first-of-type{font-size:1.125em;line-height:1.11111111}@media (min-width: 43.75em){.lede,.entry-content-post>p:first-of-type{font-size:1.375em;line-height:1.13636364}}a:link,a:visited{color:#500}@media (prefers-color-scheme: dark){a:link,a:visited{color:#fff}}a:hover,a:active{color:#b00;text-decoration:none}@media (prefers-color-scheme: dark){a:hover,a:active{color:#fbefef}}a:focus{outline:solid 3px #500}@media (prefers-color-scheme: dark){a:focus{outline:solid 3px #fff}}p{margin-top:0;margin-bottom:1em}ul,ol{padding:0;margin-top:0.75em}ul ul,ul ol,ol ul,ol ol{margin-top:0;margin-left:1em}details ul,details ol{padding-left:2em}details ul ul,details ul ol,details ol ul,details ol ol{padding-left:1em}details div{padding:0.5em}details p{padding-top:1em;padding-left:1em}details h2{display:inline;margin-bottom:0}ol{margin-left:0}.outdent{list-style:none;margin-left:0.75em;text-indent:-0.75em}.entry-title,.entry-title-page{margin-bottom:0.25em}.text-center{text-align:center}abbr{font-variant-caps:all-small-caps}@supports (font-variant-position: sub){sub{vertical-align:inherit;font-size:inherit;font-feature-settings:normal;font-variant-position:sub}}@supports (font-variant-position: super){sup{vertical-align:inherit;font-size:inherit;font-feature-settings:normal;font-variant-position:super}}table{margin-bottom:1em}caption{margin-bottom:1em}tr{border-top:1px solid #ddd}tr:first-of-type{border-top:none}td,th{padding:0.5em;line-height:1}th{text-align:left}.code-sample{margin-bottom:1em}.code-sample [type="radio"]{margin-left:1em}.highlight{margin-right:0;margin-left:0}.highlight pre{padding:0.5em 0}.sounds-like-header{font-size:1em}.sounds-like{font-family:"Courier New", Courier, monospace;background-color:#333;color:#fff;border-radius:0.25em;padding:0.5em 1em;margin-bottom:1em;outline:solid 1px #fff}.sounds-like p{margin-bottom:0}.label-fancy{display:inline-block;padding:0.5em;margin:0.5em 0.25em;border:solid 1px #ccc;border-radius:0.25em}:checked+.label-fancy{background-color:#ccc;border-color:#333;font-weight:bold}legend{margin-bottom:1em}input:invalid,input.has-error{border:solid 3px #c00;border-radius:0.15em}input:focus{outline:solid 3px #fb5}.error-message{margin-top:0.5em;padding:0.15em;border:solid 3px #c00;background-color:#ffdada}code.attr{color:#007070}code.el{color:#000080}kbd{padding:0 0.25em;background:#eee;border:solid 1px #999;border-radius:0.15em;box-shadow:1px 1px 1px #333}@media (prefers-color-scheme: dark){kbd{background:transparent;box-shadow:1px 1px 1px #fff}}summary{padding:0.25em 0.5em}summary:focus{outline:solid 3px #500;outline-offset:-0.3em}details{border:solid 2px #200;border-radius:0.5em}details[open] summary{border-bottom:solid 2px #500}.map-context{font-size:0.5em}.map-section{padding-top:0.25em;border-top:3px solid #700}.map-action-section{padding-left:1em}.map-idea-section{border-top:1px solid #700;padding-top:1em;border-bottom:1px solid #700;margin-bottom:1em}img.highlight{border:2px dashed #500}a:hover img.highlight{border-color:#b00}blockquote{margin-left:0;padding-left:1em;border-left:solid 3px #aaa}.boxout{margin-bottom:1rem;padding:0.5rem 1em;border:solid 3px #a66;border-radius:0.25rem}@media (prefers-color-scheme: dark){.boxout{border-color:#fbb}}.boxout ul{padding-left:1em;margin-bottom:0}.boxout-alt{border-color:#aaa}@media (prefers-color-scheme: dark){.boxout-alt{border-color:#eee}}.boxout-todo:before{content:"⚠️";padding-right:1rem}.portfolio h2{padding-top:0.25em;border-top:3px solid #700}.nav{padding:0.5em 0;margin-bottom:2em;display:flex;align-items:center;justify-content:space-between}.nav ul{margin:0;list-style:none}.nav li{display:inline-block;margin-right:1em}.nav [aria-current="page"] a{color:#222;text-decoration:none}@media (prefers-color-scheme: dark){.nav [aria-current="page"] a{color:#fff}}.nav [aria-current="page"] a:hover,.nav [aria-current="page"] a:active{color:#b00;text-decoration:underline}@media (prefers-color-scheme: dark){.nav [aria-current="page"] a:hover,.nav [aria-current="page"] a:active{color:#ccc}}.nav h1{margin-right:0.25em}.nav img{border-radius:0.1em 0.1em 0 0.1em}footer,.nav{background-color:#500;color:white}@media (prefers-color-scheme: dark){footer,.nav{background-color:#200}}footer a:link,footer a:visited,.nav a:link,.nav a:visited{color:white}footer a:hover,footer a:active,.nav a:hover,.nav a:active{color:#fbefef;text-decoration:none}footer a:focus,.nav a:focus{outline:solid 2px white;outline-offset:0.1em}footer{clear:both;padding-top:1em;display:flex;justify-content:space-between;flex-wrap:wrap}footer h1,footer h2,footer h3,footer h4{margin-bottom:0.5em;color:white}footer ul{list-style:none;margin:0.5em;flex:1 0 14em}footer ul ul{margin-top:0.5em;margin-left:1em}footer li{margin-bottom:0.5em}.a11y-webring-club ul{display:flex;list-style:none;padding:0;margin:0}.a11y-webring-club li{margin-right:1rem}img{border-width:0;vertical-align:middle;-ms-interpolation-mode:bicubic;max-width:100%;height:auto;border-radius:0.2em}main,.nav{padding-left:1em;padding-right:1em}@media (min-width: 38em){main,.nav{padding-left:10%;padding-right:10%}}@media (min-width: 50em){main,.nav{padding-left:15%;padding-right:15%}}@media (min-width: 64em){main,.nav{padding-left:20%;padding-right:20%}}@media (min-width: 80em){main,.nav{padding-left:25%;padding-right:25%}}footer{padding-left:1em;padding-right:1em}main,section{margin-bottom:4em}.post-meta{margin-bottom:1em;text-transform:uppercase}.pull-left img{margin:0 auto;display:block}@media (min-width: 50em){.pull-left{float:left;margin:0 1em 1em 0}}.pull-right img{margin:0 auto;display:block}@media (min-width: 50em){.pull-right{float:right;margin:0 0 1em 1em}}.boxed{border:3px solid #200}.half{max-width:50%}@media (min-width: 50em){.pop-left{margin-left:-15%}}@media (min-width: 64em){.pop-left{margin-left:-20%}}@media (min-width: 80em){.pop-left{margin-left:-25%}}@media (min-width: 50em){.pop-right{margin-right:-15%}}@media (min-width: 64em){.pop-right{margin-right:-20%}}@media (min-width: 80em){.pop-right{margin-right:-25%}}.entry-slides .pull-left{clear:left}@media (min-width: 50em){.entry-slides .toit{max-width:300px}}.entry-slides h3{clear:none}.entry-slides hr{clear:left}@media (min-width: 50em){.entry-slides hr{border-color:transparent}}.linked-thumbs{display:flex;flex-wrap:wrap}.linked-thumbs a{margin:0 0.5em 0.5em 0}.linked-thumbs img{border:3px solid #200}details{margin-bottom:1em}.slide{padding:1rem 2rem 0.5rem;color:#fff;background-color:#820}.slide h2,.slide h3,.slide h4,.slide h5,.slide h6{color:#fff;font-weight:normal}.slide a{color:#fff}.slide ul{padding-left:1rem}.slide-title{background-color:#611}.slide-section{background-color:#500}.slide-mit{background-color:#033}.slide-question{background-color:#404}.slide-full{padding:0}.slide-aside{background-color:#040}.slide-agenda{background-color:#322}.hidden{display:none !important;visibility:hidden}.visuallyhidden{border:0;clip:rect(0 0 0 0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}.visuallyhidden.focusable:active,.visuallyhidden.focusable:focus{clip:auto;height:auto;margin:0;overflow:visible;position:static;width:auto}.invisible{visibility:hidden}.clearfix:before,.clearfix:after{content:" ";display:table}.clearfix:after{clear:both}.clearfix{*zoom:1}@media print{*,*:before,*:after{background:transparent !important;color:#000 !important;box-shadow:none !important;text-shadow:none !important}a,a:visited{text-decoration:underline}a[href]:after{content:" (" attr(href) ")"}abbr[title]:after{content:" (" attr(title) ")"}a[href^="#"]:after,a[href^="javascript:"]:after{content:""}pre,blockquote{border:1px solid #999;page-break-inside:avoid}thead{display:table-header-group}tr,img{page-break-inside:avoid}img{max-width:100% !important}p,h2,h3{orphans:3;widows:3}h2,h3{page-break-after:avoid}}