html, body {
  margin: 0;
  font-family: 'Quattrocento Sans', "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: url(../images/body-background.png) #eae6d1;
}
a {
  text-decoration: none;
}


.container {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  flex-flow: column;
}


header {
  padding: 25px 0 25px 0;
  margin: 0;
  text-align: center;
  background: url(../images/background.png) #4276b6;
  box-shadow: 1px 0px 2px rgba(0, 0, 0, 0.75);
}
header h1 {
  font: 40px/48px 'Copse', "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #f3f3f3;
  text-shadow: 0px 2px 0px #235796;
  margin: 0;
  white-space: nowrap;
}
header p {
  color: #d8d8d8;
  text-shadow: rgba(0, 0, 0, 0.2) 0 1px 0;
  font-size: 18px;
  margin: 0px;
}


.banner {
  margin-top: -10px;
  height: 50px;
  background: #ffcc00;
  border: 1px solid #f0b500;
  box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.25);
  border-radius: 0px 2px 2px 0px;
  display: flex;
  align-items: center;
}
.banner .github-link {
  margin-left: 1em;
  display: flex;
  fill: #666;
}
.banner .social-buttons {
  margin: 0 1em 0 auto;
}


.button {
  border: 1px solid #dba500;
  background: linear_gradient(#ffe788, #ffce38);
  border-radius: 2px;
  box-shadow: inset 0px 1px 0px rgba(255, 255, 255, 0.4), 0px 1px 1px rgba(0, 0, 0, 0.1);
  background-color: #FFE788;
  padding: .5em .6em;
  color: #333;
  display: inline-block;
  text-align: center;
}
.button:hover {
  background: linear_gradient(#ffe788, #ffe788);
  background-color: #ffeca0;
}


.wrapper {
  flex: 1;
  display: flex;
  flex-flow: row wrap;
}


nav {
  padding-top: 1em;
  flex: 1;
  text-align: right;
}
nav .item {
  margin: 1em 2em 0 0;
  color: #666;
  cursor: pointer;
}
nav .item.active {
  font-weight: bold;
  color: #333;
}


.sections {
  flex: 3;
  padding: 1em 2em 1em 2em;
  background: #fbfbfb;
  border-radius: 3px;
  border: 1px solid #cbcbcb;
  box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.09), inset 0px 0px 2px 2px rgba(255, 255, 255, 0.5), inset 0 0 5px 5px rgba(255, 255, 255, 0.4);
  color: #666;
  display: flex;
  flex-flow: column;
  justify-content: space-between;
}
section:not(.active) {
  display: none !important;
}
section h1 {
  font-size: x-large;
  color: #333;
}
section h2 {
  margin-top: 50px;
}


footer {
  color: #888;
}
footer a {
  color: #888;
}
footer a:hover {
  text-decoration: underline;
}