html, body {
  background: white;
  padding: 0;
  margin: 0;
  font-family: "Lato", "Arial", sans-serif;
  line-height: 160%;
  font-size: 16px;
  color: #cccccc;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 300;
  font-style: italic;
  margin-top: 0;
}
h1 {
  line-height: 140%;
  font-size: 28px;
  font-weight: 400;
  font-style: normal;
  color: #1E2734;
}
p {
  margin: 0;
  margin-bottom: 1em;
}
em {
  font-style: normal;
  color: #f72378;
}
.screenreader {
  position: absolute;
  top: -9999px;
  left: -9999px;
}

a.button {
  display: inline-block;
  padding: 9px 14px;
  border: 1px solid #1E2734;
  line-height: 26px;
  text-transform: uppercase;
  color: #45a5c0;
  background: #1E2734;
  text-decoration: none;
  vertical-align: top;
}
  a.button:hover {
    background: #182f3b;
  }
  a.button i {
    margin-right: 10px;
  }
.icon-github {
  display: inline-block;
  width: 26px;
  height: 26px;
  background: url(images/github.png) no-repeat 50% 50%;
  overflow: hidden;
  vertical-align: top;
}

.container {
  max-width: 980px;
  padding: 0px 30px;
  margin: 0 auto;
}
.container:before,
.container:after {
  content: ".";
  display: block;
  height: 0;
  overflow: hidden;
}
.container:after {
    clear: both;
}
.container {
    zoom: 1; /* IE < 8 */
}

.instructions {
  float: left;
  width: 45%;
  box-sizing: border-box;
}

pre {
  margin: 0;
  padding: 20px 30px;
  font-size: 14px;
  line-height: 140%;
  color: #ffffff;
  background: #3D3F52;
  border-radius: 6px;
  float: right;
  width: 50%;
  box-sizing: border-box;
}


/* Nav & Midnight */
nav.fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  text-align: center;
  z-index: 9999;
  height: 300px;
  pointer-events: none;
}
  .logo-holder {
    margin: 60px auto 0px auto;
    height: 75px;
    padding-top: 295px;
  }
  .logo {
    display: block;
    width: 800px;
    height: 150px;
    padding: 0;
    margin: 0px auto;
    margin-top: -75px;
    background: url(images/logos.png) no-repeat -0px -150px;
    background-size: 800px 1050px;
  }

.midnightHeader.white .logo {
  background-position: -0px 0%;
}
.midnightHeader.default .logo,
.midnightHeader.black .logo {
  background-position: -0px 16.67%;
}
.midnightHeader.blue .logo {
  background-position: -0px 33.33%;
}
.midnightHeader.light .logo {
  background-position: -0px 50.00%;
}
.midnightHeader.dark .logo {
  background-position: -0px 66.67%;
}
.midnightHeader.lighter .logo {
  background-position: -0px 83.33%;
}
.midnightHeader.full .logo {
  background-position: -0px 100%;
}


header, section, footer {
  padding: 1px 0;
  overflow: hidden;
}
.first-background {
  background: url(images/background-top.jpg) no-repeat 50% 50%;
  background-color: #151D28;
  background-size: cover;
  height: 300px;
}
.step-one {
  background: url(images/background-1.png) no-repeat 50% 50%;
  background-color: #15212A;
  background-size: cover;
}
.step-two {
  background: url(images/background-2.png) no-repeat 50% 50%;
  background-color: #172B3F;
  background-size: cover;
}
.step-three {
  background: url(images/background-3.png) no-repeat 50% 50%;
  background-color: #193E5A;
  background-size: cover;
}
.step-four {
  background: url(images/background-4.png) no-repeat 50% 50%;
  background-color: #264C68;
  background-size: cover;
}
.step-five {
  background: url(images/background-5.png) no-repeat 50% 50%;
  background-color: #497697;
  background-size: cover;
}


.top-links {
  background: #171922;
  padding: 10px;
  min-height: 40px;
  text-align: center;
}
  .top-links a.button {
    font-size: 14px;
    padding: 5px 20px;
    border: 1px solid #56555F;
    background: #171922;
    color: #56555F;
    font-weight: bold;
    margin: 0px 10px;
  }


header {
  padding: 100px 0 0 0;
  background: #ffffff;
  text-align: center;
  min-height: 700px;
}
  header .buttons {
    margin-bottom: 40px;
  }
  header a.button {
    color: #ffffff;
  }
  header h1 {
    margin-bottom: 1em;
  }
  header p {
    font-size: 22px;
    font-style: italic;
    color: #213e4d;
  }
  header figure {
    text-align: center;
    margin: 0;
    padding: 0;
    padding-bottom: 30px;
  }
  figure img {
    display: block;
    margin: 0px auto;
    max-width: 100%;
  }

.scroll-prompt {
  display: block;
  overflow: hidden;
  width: 40px;
  height: 40px;
  background: url(images/scroll.png) no-repeat 50% 50%;
  margin: 50px auto 50px auto;
}


section.step {
  position: relative;
}

.step {
  padding: 350px 0 250px;
}

footer {
  position: relative;
  min-height: 100vh;
  background: rgb(73,118,151); /* Old browsers */
  background: -moz-linear-gradient(top,  rgba(73,118,151,1) 0%, rgba(206,208,204,1) 80%, rgba(206,208,204,1) 80%); /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(73,118,151,1)), color-stop(80%,rgba(206,208,204,1)), color-stop(80%,rgba(206,208,204,1))); /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top,  rgba(73,118,151,1) 0%,rgba(206,208,204,1) 80%,rgba(206,208,204,1) 80%); /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top,  rgba(73,118,151,1) 0%,rgba(206,208,204,1) 80%,rgba(206,208,204,1) 80%); /* Opera 11.10+ */
  background: -ms-linear-gradient(top,  rgba(73,118,151,1) 0%,rgba(206,208,204,1) 80%,rgba(206,208,204,1) 80%); /* IE10+ */
  background: linear-gradient(to bottom,  rgba(73,118,151,1) 0%,rgba(206,208,204,1) 80%,rgba(206,208,204,1) 80%); /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#497697', endColorstr='#ced0cc',GradientType=0 ); /* IE6-9 */
}
  footer .illustration-city {
    padding-top: 50vh;
    background: url(images/city.png) no-repeat 50% 100%;
    min-height: 50vh;
  }
  footer .buttons {
    padding: 0px 0 190px 0;
    text-align: center;
  }
  footer .buttons .button {
    margin: 10px;
  }
  footer .signature {
    position: absolute;
    bottom: 30px;
    left: 0;
    right: 0;
    text-align: center;
  }
    .signature-aerolab {
      display: inline-block;
      width: 117px;
      height: 43px;
      overflow: hidden;
      background: url(images/aerolab-logo.png) no-repeat 50% 50%;
      background-size: 117px 43px;
    }








/* http://prismjs.com/download.html?themes=prism&languages=markup+css */
/**
 * prism.js default theme for JavaScript, CSS and HTML
 * Based on dabblet (http://dabblet.com)
 * @author Lea Verou
 */

code[class*="language-"],
pre[class*="language-"] {
  color: #ffffff;
  font-family: Consolas, Monaco, 'Andale Mono', monospace;
  direction: ltr;
  text-align: left;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  line-height: 1.5;

  -moz-tab-size: 4;
  -o-tab-size: 4;
  tab-size: 4;

  -webkit-hyphens: none;
  -moz-hyphens: none;
  -ms-hyphens: none;
  hyphens: none;
}

pre[class*="language-"]::-moz-selection, pre[class*="language-"] ::-moz-selection,
code[class*="language-"]::-moz-selection, code[class*="language-"] ::-moz-selection {
  background: #b3d4fc;
}

pre[class*="language-"]::selection, pre[class*="language-"] ::selection,
code[class*="language-"]::selection, code[class*="language-"] ::selection {
  background: #b3d4fc;
}

/* Code blocks */
pre[class*="language-"] {
  padding: 0em;
  margin: 0;
  overflow: auto;
}

:not(pre) > code[class*="language-"],
pre[class*="language-"] {
  background: #f5f2f0;
}

/* Inline code */
:not(pre) > code[class*="language-"] {
  padding: .1em;
  border-radius: .3em;
}

.token.comment,
.token.prolog,
.token.doctype,
.token.cdata {
  color: slategray;
}

.token.punctuation {
  color: #ffffff;
}

.namespace {
  opacity: .7;
}

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted {
  color: #f72378;
}

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted {
  color: #9bfb54;
}

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string,
.token.variable {
  color: #a67f59;
  background: hsla(0, 0%, 100%, .5);
}

.token.atrule,
.token.attr-value,
.token.keyword {
  color: #fbf935;
}

.token.function {
  color: #DD4A68;
}

.token.regex,
.token.important {
  color: #e90;
}

.token.important {
  font-weight: bold;
}

.token.entity {
  cursor: help;
}


pre.line-numbers {
  position: relative;
  padding-top: 1em;
  padding-bottom: 1em;
  padding-left: 3.8em;
  background: #3D3F52;
  counter-reset: linenumber;
}

pre.line-numbers > code {
  position: relative;
}

.line-numbers .line-numbers-rows {
  position: absolute;
  pointer-events: none;
  top: -1.2em;
  bottom: -1.2em;
  background: #343545;
  font-size: 100%;
  left: -3.8em;
  padding-top: 1em;
  padding-bottom: 1em;
  color: #363f4d;
  text-align: center;
  width: 3em; /* works for line-numbers below 1000 lines */
  letter-spacing: -1px;

  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;

}

  .line-numbers-rows > span {
    pointer-events: none;
    display: block;
    counter-increment: linenumber;
  }

    .line-numbers-rows > span:before {
      content: counter(linenumber);
      color: #999;
      display: block;
      padding-right: 0.8em;
      text-align: right;
    }


@media(max-width: 1680px) {
  header {
    min-height: 0px;
  }
  .first-background {
    height: 250px;
  }
  nav.fixed {
    height: 250px;
  }
    .logo-holder {
      padding-top: 247px;
    }
    
  .logo-holder {
    height: 56.25px;
  }
  .logo {
    width: 600px;
    height: 112.5px;
    margin-top: -56.25px;
    background-size: 600px 788px;
  }
}


@media(max-width: 1280px) {
  header {
    min-height: 0px;
  }
  .first-background {
    height: 200px;
  }
  nav.fixed {
    height: 200px;
  }
    .logo-holder {
      padding-top: 197px;
    }
}

@media(max-width: 860px) {

}


@media(max-width: 700px) {
  .logo-holder {
    height: 37.5px;
  }
  .logo {
    width: 400px;
    height: 75px;
    margin-top: -37.5px;
    background-size: 400px 525px;
  }

  header {
    padding-top: 70px;
  }

  h1 {
    font-size: 24px;
  }
  header p {
    font-size: 20px;
  }


  .step {
    padding: 250px 0 150px
  }

  .instructions, pre {
    float: none;
    width: auto;
  }
  .instructions {
    margin-bottom: 30px;
  }

  .first-background {
    background-image: url(images/background-top-mobile.jpg);
  }
  .step-one {
    background-image: url(images/background-1-mobile.jpg);
  }
  .step-two {
    background-image: url(images/background-2-mobile.jpg);
  }
  .step-three {
    background-image: url(images/background-3-mobile.jpg);
  }
  .step-four {
    background-image: url(images/background-4-mobile.jpg);
  }
  .step-five {
    background-image: url(images/background-5-mobile.jpg);
  }
  footer .illustration-city {
    background-image: url(images/city-mobile.png);
  }
}


@media(max-width: 480px) {
  .top-links .button-github {
    display: none;
  }
  .first-background {
    height: 120px;
  }
  nav.fixed {
    height: 120px;
  }
    .logo-holder {
      padding-top: 118px;
    }

  .logo-holder {
    height: 26.25px;
  }
  .logo {
    width: 280px;
    height: 52.5px;
    margin-top: -26.25px;
    background-image: url(images/logos-mobile.png);
    background-size: 280px 368px;
  }

}

@media(max-width: 320px) {

  .logo-holder {
    height: 22.5px;
  }
  .logo {
    width: 240px;
    height: 45px;
    margin-top: -22.5px;
    background-size: 240px 315px;
  }

}