body {
  margin: 0;
  font-family: "Roboto";
  font-weight: 200;
  background: #222222;
  color: rgba(255, 255, 255, 0.87);
}
#main {
  position: relative;
  display: block;
  padding: 8px;
  z-index: 1;
  min-height: 100vh;
}

* {
  box-sizing: border-box;
}

h1 {
  font-weight: 300;
}

video {
  background: black;
}

ul {
  list-style: none;
  padding-left: initial;
}
li {
  position: relative;
  padding: 4px;
  padding-left: 24px;
}
li:nth-child(2n+1) {
  background: rgba(0, 0, 0, 0.2);
}
li:nth-child(2n+2) {
  background: rgba(255, 225, 255, 0.2);
}
li:before {
  content: "";
  display: block;
  position: absolute;
  left: 8px;
  top: 6px;
  width: 0;
  height: 0;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 8px solid white;
}

a {
  transition: color 0.3s, text-shadow 0.3s;
  text-shadow: transparent 0 0 0;
}
a:link, a:visited {
  color: #3ca1cc;
}
a:hover, a:active {
  color: #58cbfc;
  text-shadow: currentColor 0 0 16px;
}

.dark {
  transition: opacity 0.3s;
  position: fixed;
  display: block;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 90;
  pointer-events: none;
  opacity: 0;
}

header {
  display: block;
  position: fixed;
  z-index: 100;
  background: #d8ceeb;

  left: 0;
  top: 0;
  width: 256px;
  height: 100vh;
  box-shadow: rgba(0, 0, 0, 0.4) 2px 0 8px;
}
header #logo, header #navlogo, header a {
  display: block;
  width: 256px;
  padding: 8px;
  margin-bottom: 2px;
}
header #navlogo {
  display: none;
}
header a {
  transition: width 0.3s, background 0.3s, box-shadow 0.3s, text-shadow 0.3s;
  width: calc(256px + 4px);
  background: white;
  display: block;
  padding: 16px;
  color: black;
  text-shadow: none;
  text-decoration: none;
  box-shadow: rgba(0, 0, 0, 0.4) 0 -2px 0 inset, rgba(0, 0, 0, 0.4) 0 2px 4px;
}
header a:hover {
  width: calc(256px + 16px);
  background: #f3f9fc;
  box-shadow: rgba(60, 161, 204, 0.4) 0 -2px 0 inset, rgba(0, 0, 0, 0.4) 0 2px 8px;
}
header section {
  width: calc(100% + 32px);
  overflow-y: hidden;
}
header section a {
  padding: 8px 16px;
  width: calc(256px - 8px);
  margin-left: 12px;
}
header section a:hover {
  width: calc(256px + 4px);
}

#main>#main-content {
  display: block;
  position: relative;

  margin-left: 256px;
  padding-left: 8px;
}

#main-content section.flex, section.flex {
  display: flex;
  flex-flow: row wrap;
  justify-content: left;
  align-items: flex-start;
  align-content: flex-start;
  overflow: hidden;
}
section.flex>div {
  position: relative;
  width: 500px;
}
section.flex>[left] {
  margin-right: 32px;
}

.buttons {
  display: block;
  margin-top: 32px;
  border-radius: 3px;
  background: #222222;
  padding: 16px;
  margin-bottom: 32px;
  box-shadow: rgba(0, 0, 0, 0.4) 0 0 8px inset,
              rgba(0, 0, 0, 0.5) 0 2px 4px inset;
}
.buttons>sub {
  display: block;
  position: absolute;
  bottom: -7px;
  left: 0;
  width: 100%;
  min-height: 42px;
  padding: 8px;
  background: #444444;
  border-bottom-left-radius: 3px;
  border-bottom-right-radius: 3px;
  box-shadow: rgba(0, 0, 0, 0.4) 0 -2px 4px,
              rgba(0, 0, 0, 0.35) 0 2px 6px;
}
.buttons>sub>a {
  padding: 2px 4px;
}
.buttons>sub>a[href="#"], .buttons>sub>a[href="#"]:hover {
  padding: 0;
  margin: 0;
  background: none;
  box-shadow: none;
  transform: none;
}
.buttons>sub>a>input {
  display: none;
}
.buttons>sub>a>label {
  transition: background 0.3s, box-shadow 0.3s;
  padding: 2px 4px 2px 24px;
  border-radius: 3px;
  cursor: pointer;
}
.buttons>sub>a>label:before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 2px;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(255, 255, 255, 0.87);
  border-radius: 2px;
}
.buttons>sub>a>label:after {
  transition: opacity 0.3s;
  content: "check";
  display: block;
  position: absolute;
  top: 0;
  left: 2px;
  font-family: "Material Icons";
  font-weight: normal;
  font-style: normal;
  font-size: 16px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  color: rgba(255, 255, 255, 0.87);
  opacity: 0;
}
.buttons>sub>a[href="#"]:hover>label {
  background: #2e7343;
  box-shadow: rgba(0, 0, 0, 0.4) 0 -2px 6px inset;
}
.buttons>sub>a>input:checked+label {
  background: #2e7343;
  box-shadow: rgba(0, 0, 0, 0.4) 0 -1px 4px inset;
}
.buttons>sub>a:hover>input:checked+label {
  background: #44a962;
}
.buttons>sub>a>input:checked+label:after {
  opacity: 1;
}
.buttons a, a.button {
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
  display: inline-block;
  border-radius: 3px;
  background: #2e5e73;
  color: white;
  text-shadow: none;
  text-decoration: none;
  padding: 8px;
  margin: 2px;
  box-shadow: rgba(0, 0, 0, 0.4) 0 2px 8px;
  transform: translateY(0px);
}
.buttons a.huge, a.button.huge {
  padding: 12px;
}
a.button {
  margin-top: 16px;
}
.buttons a:hover, a.button:hover {
  background: #448ba9;
  box-shadow: rgba(0, 0, 0, 0.5) 0 4px 16px;
  transform: translateY(-2px);
}
.buttons a .minor, a.button .minor {
  display: inline-block;
  opacity: 0.4;
  font-size: 12px;
  margin-left: 4px;
  transform: translateY(-1px);
}
.buttons a i, a.button i {
  line-height: 0;
  transform: translateY(8px);
}
.buttons a img, a.button img {
  display: inline;
  height: 24px;
  margin-left: 2px;
  margin-top: -100%;
  margin-bottom: -4px;
}

@media only screen and (max-width: 1100px) {
  #main {
    padding-top: 64px;
  }
  header {
    left: 0;
    top: 0;
    width: 100vw;
    height: 64px;
    box-shadow: rgba(0, 0, 0, 0.4) 0 2px 8px;
  }
  #main>#main-content {
    margin-left: 0;
  }
  header #logo {
    width: initial;
    height: 64px;
    padding: 8px;
    padding-left: 64px;
  }
  header #navlogo {
    display: block;
    position: relative;
    z-index: 102;
  }

  #navbutton {
    display: block;
    position: absolute;
    left: 8px;
    top: 8px;
    width: 48px;
    height: 48px;
  }
  #navbutton div {
    display: block;
    position: absolute;
    left: 0;
    width: 48px;
    height: 8px;
    background: white;
    border: 2px solid black;
  }
  #navbutton div:nth-child(1) {
    top: 4px;
  }
  #navbutton div:nth-child(2) {
    top: 20px;
  }
  #navbutton div:nth-child(3) {
    top: 36px;
  }

  header {
    background: #402b68;
  }
  nav {
    transition: transform 0.3s;
    position: absolute;
    z-index: 101;
    left: 0;
    top: 0;
    width: 256px;
    height: 100vh;
    transform: translateX(-260px);
    background: #d8ceeb;
    box-shadow: rgba(0, 0, 0, 0.5) 2px 0 8px;
  }
  #navbutton:hover~nav, nav:hover {
    transform: translateX(0);
  }
  nav a {
    position: relative;
    z-index: 102;
  }
  #navdark {
    z-index: -10;
  }
  #navbutton:hover~#navdark, nav:hover~#navdark {
    opacity: 1;
    pointer-events: auto;
  }
}

@media only screen and (max-width: 550px) {
  .buttons {
    min-height: 120px;
  }
}