/*! normalize.css v3.0.2 | MIT License | git.io/normalize */
html{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}body{margin:0}article,aside,details,figcaption,figure,footer,header,hgroup,main,menu,nav,section,summary{display:block}audio,canvas,progress,video{display:inline-block;vertical-align:baseline}audio:not([controls]){display:none;height:0}[hidden],template{display:none}@media(-webkit-min- device-pixel-ratio:1.5),(min-resolution:144dpi),(min-resolution:1.5dppx){html{font -weight:300}}h1{font-weight:300;font-size:2em;-webkit-font-kerning:normal;letter-spac ing:-.015em;line-height:1;margin:.25em 0 .75em}@media(min-width:768px){h1{font-size:2.5em;margin:.5em 0 1em}}h2{font-size:1.333em;font-weight:600;margin:0 0 1.12528em}h3{font-size:1em;font-weight:600;margin:0 0 1.5em}p,pre{margin:0 0 1.5em}code,pre{font-family:Menlo,Monaco,monospace}code{font-size:.9em;font-weight:400;color:#000}pre>code{font:inherit;color:inherit}.Aligner{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;min-height:24em;-webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center}.Aligner-item{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.Aligner-item--top{-webkit-align-self:flex-start;-ms-flex-item-align:start;align-self:flex-start}.Aligner-item--bottom{-webkit-align-self:flex-end;-ms-flex-item-align:end;align-self:flex-end}.Aligner-item--fixed{-webkit-box-flex:0;-webkit-flex:none;-ms-flex:none;flex:none;max-width:50%}.Browser{font-size:.8em;text-align:center}.Footer{padding:24px;padding:1.5rem;background:#404040;color:#999;font-size:.85em;text-align:center}.Footer a{padding-bottom:1px;border:0;color:#e5e5e5}.Footer a:focus,.Footer a:active,.Footer a:hover{color:#fff;text-decoration:none}.Footer-credits{margin:0;padding:0}.Footer-credit{display:block;margin:0}.Footer-creditSeparator{display:none}.Footer-social a,.Footer-social iframe{display:inline-block;margin:0 0 1em;vertical-align:top}@media(min-width:576px){.Footer-credit{display:inline-block;margin:0 .25em}.Footer-creditSeparator{display:inline-block;padding:0 .25em}}.Grid{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-wrap:wrap;-ms-flex-wrap:wrap;flex-wrap:wrap;list-style:none;margin:0;padding:0}.Grid-cell{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.Grid--flexCells>.Grid-cell{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}.Grid--top{-webkit-box-align:start;-webkit-align-items:flex-start;-ms-flex-align:start;align-items:flex-start}.Grid--bottom{-webkit-box-align:end;-webkit-align-items:flex-end;-ms-flex-align:end;align-items:flex-end}.Grid--center{-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center}.Grid--justifyCenter{-webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center}.Grid-cell--top{-webkit-align-self:flex-start;-ms-flex-item-align:start;align-self:flex-start}.Grid-cell--bottom{-webkit-align-self:flex-end;-ms-flex-item-align:end;align-self:flex-end}.Grid-cell--center{-webkit-align-self:center;-ms-flex-item-align:center;align-self:center}.Grid-cell--autoSize{-webkit-box-flex:0;-webkit-flex:none;-ms-flex:none;flex:none}.Grid--fit>.Grid-cell{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.Grid--full>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 100%;-ms-flex:0 0 100%;flex:0 0 100%}.Grid--1of2>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 50%;-ms-flex:0 0 50%;flex:0 0 50%}.Grid--1of3>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 33.3333%;-ms-flex:0 0 33.3333%;flex:0 0 33.3333%}.Grid--1of4>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 25%;-ms-flex:0 0 25%;flex:0 0 25%}@media(min-width:384px){.small-Grid--fit>.Grid-cell{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.small-Grid--full>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 100%;-ms-flex:0 0 100%;flex:0 0 100%}.small-Grid--1of2>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 50%;-ms-flex:0 0 50%;flex:0 0 50%}.small-Grid--1of3>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 33.3333%;-ms-flex:0 0 33.3333%;flex:0 0 33.3333%}.small-Grid--1of4>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 25%;-ms-flex:0 0 25%;flex:0 0 25%}}@media(min-width:576px){.med-Grid--fit>.Grid-cell{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.med-Grid--full>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 100%;-ms-flex:0 0 100%;flex:0 0 100%}.med-Grid--1of2>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 50%;-ms-flex:0 0 50%;flex:0 0 50%}.med-Grid--1of3>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 33.3333%;-ms-flex:0 0 33.3333%;flex:0 0 33.3333%}.med-Grid--1of4>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 25%;-ms-flex:0 0 25%;flex:0 0 25%}}@media(min-width:768px){.large-Grid--fit>.Grid-cell{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.large-Grid--full>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 100%;-ms-flex:0 0 100%;flex:0 0 100%}.large-Grid--1of2>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 50%;-ms-flex:0 0 50%;flex:0 0 50%}.large-Grid--1of3>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 33.3333%;-ms-flex:0 0 33.3333%;flex:0 0 33.3333%}.large-Grid--1of4>.Grid-cell{-webkit-box-flex:0;-webkit-flex:0 0 25%;-ms-flex:0 0 25%;flex:0 0 25%}}.Grid--gutters{margin:-1em 0 1em -1em}.Grid--gutters>.Grid-cell{padding:1em 0 0 1em}.Grid--guttersLg{margin:-1.5em 0 1.5em -1.5em}.Grid--guttersLg>.Grid-cell{padding:1.5em 0 0 1.5em}.Grid--guttersXl{margin:-2em 0 2em -2em}.Grid--guttersXl>.Grid-cell{padding:2em 0 0 2em}@media(min-width:384px){.small-Grid--gutters{margin:-1em 0 1em -1em}.small-Grid--gutters>.Grid-cell{padding:1em 0 0 1em}.small-Grid--guttersLg{margin:-1.5em 0 1.5em -1.5em}.small-Grid--guttersLg>.Grid-cell{padding:1.5em 0 0 1.5em}.small-Grid--guttersXl{margin:-2em 0 2em -2em}.small-Grid--guttersXl>.Grid-cell{padding:2em 0 0 2em}}@media(min-width:576px){.med-Grid--gutters{margin:-1em 0 1em -1em}.med-Grid--gutters>.Grid-cell{padding:1em 0 0 1em}.med-Grid--guttersLg{margin:-1.5em 0 1.5em -1.5em}.med-Grid--guttersLg>.Grid-cell{padding:1.5em 0 0 1.5em}.med-Grid--guttersXl{margin:-2em 0 2em -2em}.med-Grid--guttersXl>.Grid-cell{padding:2em 0 0 2em}}@media(min-width:768px){.large-Grid--gutters{margin:-1em 0 1em -1em}.large-Grid--gutters>.Grid-cell{padding:1em 0 0 1em}.large-Grid--guttersLg{margin:-1.5em 0 1.5em -1.5em}.large-Grid--guttersLg>.Grid-cell{padding:1.5em 0 0 1.5em}.large-Grid--guttersXl{margin:-2em 0 2em -2em}.large-Grid--guttersXl>.Grid-cell{padding:2em 0 0 2em}}.Header{padding:1.5em;background-color:rgba(147,128,108,.1);text-align:center}@media(min-width:768px){.Header{padding:3em 1.5em}}.Header-title{margin:0 0 .15em;font-size:1.8em;font-weight:600;line-height:1;wor-spacing:.08em}.Header-title i{font-family:serif;font-style:italic;font-weight:400}.Header-title a{border:0;color:inherit;font-weight:inherit}.Header-title a:focus,.Header-title ahover,.Header-title a:active{text-decoration:none}@media(min-width:768px){.Header-title{font-size:4em}}.Header-subTitle{margin:0 0 1.5em;font-size:.8em;font-weight:300;white-space:nowrap}@media(min-width:768px){.Header-subTitle{margin:1em 0 1.75em;font-size:1.1em}}.Header-actions{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:stretch;-webkit-align-items:stretch;-ms-flex-align:stretch;align-items:stretch;-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;font-size:.9em}@media(min-width:384px){.Header-actions{-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;-webkit-box-orient:horizontal;-webkit-box-direction:normal;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row;-webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center}}@media(min-width:768px){.Header-actions{font-size:1.1em}}.Header-button:first-child{margin:0 0 1em}@media(min-width:384px){.Header-button:first-child{margin:0 1em 0 0}}@media(min-width:768px){.Header--cozy{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;padding:1.5em;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center}.Header--cozy .Header-titles{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:baseline;-webkit-align-items:baseline;-ms-flex-align:baseline;align-items:baseline}.Header--cozy .Header-title{font-size:1.5em}.Header--cozy .Header-subTitle{margin:0 0 0 1em;font-size:.8em;font-weight:300;color:gray}.Header--cozy .Header-actions{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;-webkit-box-pack:end;-webkit-justify-content:flex-end;-ms-flex-pack:end;justify-content:flex-end;font-size:.9em}}.HolyGrail{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;height:100%;-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column}.HolyGrail-header,.HolyGrail-footer{-webkit-box-flex:0;-webkit-flex:none;-ms-flex:none;flex:none}.HolyGrail-body{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-flex:1;-webkit-flex:1 0 auto;-ms-flex:1 0 auto;flex:1 0 auto;-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;padding:1.5em}.HolyGrail-content{margin-top:1.5em}.HolyGrail-nav{-webkit-box-ordinal-group:0;-webkit-order:-1;-ms-flex-order:-1;order:-1}.HolyGrail-nav,.HolyGrail-ads{padding:1em;border-radius:3px;background:rgba(147,128,108,.1)}@media(min-width:768px){.HolyGrail-body{-webkit-box-orient:horizontal;-webkit-box-direction:normal;-webkit-flex-direction:row;-ms-flex-direction:row;flex-direction:row}.HolyGrail-content{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1;padding:0 2em;margin:0}.HolyGrail-nav,.HolyGrail-ads{-webkit-box-flex:0;-webkit-flex:0 0 12em;-ms-flex:0 0 12em;flex:0 0 12em}}.Image{display:block;width:40px;height:auto;margin-top:.2em}.Image--tiny{width:30px}@media(min-width:576px){.Image{width:70px}.Image--tiny{width:40px}}.InputAddOn{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;margin-bottom:1.5em}.InputAddOn-field{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.InputAddOn-field:not(:first-child){border-left:0}.InputAddOn-field:not(:last-child){border-right:0}.InputAddOn-item{background-color:rgba(147,128,108,.1);color:#666;font:inherit;font-weight:400}.InputAddOn-field,.InputAddOn-item{border:1px solid rgba(147,128,108,.25);padding:.5em .75em}.InputAddOn-field:first-child,.InputAddOn-item:first-child{border-radius:2px 0 0 2px}.InputAddOn-field:last-child,.InputAddOn-item:last-child{border-radius:0 2px 2px 0}.Media{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:start;-webkit-align-items:flex-start;-ms-flex-align:start;align-items:flex-start;margin-bottom:1em}.Media-figure{margin-right:1em}.Media-body{-webkit-box-flex:1;-webkit-flex:1;-ms-flex:1;flex:1}.Media-body,.Media-body :last-child{margin-bottom:0}.Media-title{margin:0 0 .5em}.Media--center{-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center}.Media--reverse>.Media-figure{-webkit-box-ordinal-group:2;-webkit-order:1;-ms-flex-order:1;order:1;margin:0 0 0 1em}.Notice{background-color:#edffdb;color:rgba(0,0,0,.6);font-size:.9em;margin-bottom:1.5em;padding:1.2em 1.5em}.Section{padding:0 1.5em}.Section:nth-child(2n){background-color:rgba(147,128,108,.1);overflow:hidden}.Section::before,.Section::after{content:'\00a0';display:block;height:0;visibility:hidden}.Section::before{margin-bottom:1.5em}.Section::after{margin-top:1.5em}@media(min-width:768px){.Section{padding:0 2em}.Section::before{margin-bottom:2em}.Section::after{margin-top:2em}}.Section-heading{text-align:center}@media(min-width:768px){.Section-list{padding:0;text-align:center;list-style-position:inside}}.Site{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;height:100%}.Site-header,.Site-footer{-webkit-box-flex:0;-webkit-flex:none;-ms-flex:none;flex:none}.Site-content{-webkit-box-flex:1;-webkit-flex:1 0 auto;-ms-flex:1 0 auto;flex:1 0 auto;padding:1.5em 1.5em 0;width:100%}.Site-content::after{content:'\00a0';display:block;margin-top:1.5em;height:0;visibility:hidden}@media(min-width:768px){.Site-content{padding-top:2em}.Site-content::after{margin-top:2em}}.Site-content--full{padding:0}.Site-content--full::after{content:none}.u-ieMinHeightBugFix{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column}.u-full{width:100%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-1of2{width:50%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-1of3{width:33.3333%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-2of3{width:66.6667%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-1of4{width:25%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-3of4{width:75%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}@media(min-width:384px){.u-small-full{width:100%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-small-1of2{width:50%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-small-1of3{width:33.3333%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-small-2of3{width:66.6667%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-small-1of4{width:25%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-small-3of4{width:75%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}}@media(min-width:576px){.u-med-full{width:100%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-med-1of2{width:50%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-med-1of3{width:33.3333%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-med-2of3{width:66.6667%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-med-1of4{width:25%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-med-3of4{width:75%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}}@media(min-width:768px){.u-large-full{width:100%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-large-1of2{width:50%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-large-1of3{width:33.3333%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-large-2of3{width:66.6667%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-large-1of4{width:25%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}.u-large-3of4{width:75%!important;-webkit-box-flex:0!important;-webkit-flex:none!important;-ms-flex:none!important;flex:none!important}}.u-smaller{font-size:.85em}.u-bigger{font-size:1.2em}.u-spaceAN{margin:0!important}.u-spaceVN{margin-top:0!important;margin-bottom:0!important}.u-spaceTN{margin-top:0!important}.u-spaceRN{margin-right:0!important}.u-spaceBN{margin-bottom:0!important}.u-spaceLN{margin-left:0!important}.u-spaceAS{margin:.5em!important}.u-spaceVS{margin-top:.5em!important;margin-bottom:.5em!important}.u-spaceTS{margin-top:.5em!important}.u-spaceRS{margin-right:.5em!important}.u-spaceBS{margin-bottom:.5em!important}.u-spaceLS{margin-left:.5em!important}.u-spaceAM{margin:1em!important}.u-spaceVM{margin-top:1em!important;margin-bottom:1em!important}.u-spaceTM{margin-top:1em!important}.u-spaceRM{margin-right:1em!important}.u-spaceBM{margin-bottom:1em!important}.u-spaceLM{margin-left:1em!important}.u-spaceAL{margin:2em!important}.u-spaceVL{margin-top:2em!important;margin-bottom:2em!important}.u-spaceTL{margin-top:2em!important}.u-spaceRL{margin-right:2em!important}.u-spaceBL{margin-bottom:2em!important}.u-spaceLL{margin-left:2em!important}.icon-big{font-size:1.5em}.hljs{display:block;overflow-x:auto;padding:.5em;color:#333;background:#f8f8f8;-webkit-text-size-adjust:none}.hljs-comment,.diff .hljs-header,.hljs-javadoc{color:#998;font-style:italic}.hljs-keyword,.css .rule .hljs-keyword,.hljs-winutils,.nginx .hljs-title,.hljs-subst,.hljs-request,.hljs-status{color:#333;font-weight:700}.hljs-number,.hljs-hexcolor,.ruby .hljs-constant{color:teal}.hljs-string,.hljs-tag .hljs-value,.hljs-phpdoc,.hljs-dartdoc,.tex .hljs-formula{color:#d14}.hljs-title,.hljs-id,.scss .hljs-preprocessor{color:#900;font-weight:700}.hljs-list .hljs-keyword,.hljs-subst{font-weight:400}.hljs-class .hljs-title,.hljs-type,.vhdl .hljs-literal,.tex .hljs-command{color:#458;font-weight:700}.hljs-tag,.hljs-tag .hljs-title,.hljs-rules .hljs-property,.django .hljs-tag .hljs-keyword{color:navy;font-weight:400}.hljs-attribute,.hljs-variable,.lisp .hljs-body{color:teal}.hljs-regexp{color:#009926}.hljs-symbol,.ruby .hljs-symbol .hljs-string,.lisp .hljs-keyword,.clojure .hljs-keyword,.scheme .hljs-keyword,.tex .hljs-special,.hljs-prompt{color:#990073}.hljs-built_in{color:#0086b3}.hljs-preprocessor,.hljs-pragma,.hljs-pi,.hljs-doctype,.hljs-shebang,.hljs-cdata{color:#999;font-weight:700}.hljs-deletion{background:#fdd}.hljs-addition{background:#dfd}.diff .hljs-change{background:#0086b3}.hljs-chunk{color:#aaa}pre{border-radius:3px;background:rgba(147,128,108,.1);font-size:.85em;margin-bottom:1.76471em;padding:1.25em 1.5em}.twitter-follow-button{width:230px!important}.twitter-color{color:#00aced}