body {
  margin: 0em;
  background: white;
  font-family: 'Titillium Web', Arial, sans-serif;
  overflow-x: hidden;
}
header,
footer,
section {
  display: block;
  margin: 0em;
}
.nav-toggle {
  display: none;
}
.nav-toggle + label:before {
  content: '\25ba';
  display: inline-block;
  color: #001f3f;
  z-index: 2;
  transition: 350ms;
  position: absolute;
  top: 0;
  left: 0;
  font-size: 2em;
  padding: 0.25em;
}
.nav-toggle:checked + label:before {
  transform: rotate(-180deg);
  color: #7FDBFF;
}
.nav-toggle:checked + label + nav {
  left: 0;
}
nav {
  display: flex;
  height: 100vh;
  width: 10em;
  flex-direction: column;
  align-content: center;
  background-color: #001f3f;
  z-index: 1;
  position: absolute;
  top: 0;
  left: -11em;
  transition: 350ms;
  box-shadow: 0.2em 0 0.5em 0.2em rgba(0, 0, 0, 0.25), 0.1em 0 0.25em 0.1em rgba(0, 0, 96, 0.25);
}
nav div:first-child,
nav div:last-child {
  flex-grow: 1;
  display: flex;
  justify-content: center;
}
nav .logo {
  pointer-events: none;
  color: #7FDBFF;
}
nav .logo svg {
  padding-top: 3em;
  margin-bottom: -3em;
  height: 3em;
  width: auto;
  fill: #7FDBFF;
}
nav a {
  text-decoration: none;
  color: #7FDBFF;
  padding: 0.5em;
  border-bottom: 1px solid #7FDBFF;
  text-align: center;
  transition: 250ms;
}
nav a:last-of-type {
  border-bottom: none;
}
nav a:hover {
  color: white;
}
footer {
  background: #DDDDDD;
  color: #001f3f;
  height: 2em;
  display: flex;
  justify-content: space-around;
}
footer a {
  color: white;
}
.main {
  background: white;
  padding: 3em;
}
.main h1 {
  color: darkslategray;
}
ul li {
  margin: 1.5em auto;
}
.btn {
  font-family: Roboto, sans-serif;
  display: inline-block;
  padding: 5px;
  margin: 10px;
  border-radius: 5px;
  box-shadow: 0px 0px 0px #fff;
  transition: box-shadow 0.3s, transform 0.3s;
}
.btn:hover {
  box-shadow: 0px 2px 3px #ccc;
  cursor: pointer;
  transform: translateY(-1px);
}
.btn:active {
  background-color: #f7f7f7;
}
.green {
  background-color: #145714;
  color: white;
}
.green:hover {
  box-shadow: 0px 2px 3px #666;
}
.green:active {
  background-color: #104610;
}
.inner.green:hover {
  box-shadow: inset 0px 2px 3px #0a2e0a;
}
.inner {
  box-shadow: inset 0px 0px 0px #fff;
}
.inner:hover {
  transform: translateY(1px);
  box-shadow: inset 0px 2px 3px #ccc;
}
@media only screen and (min-width: 30em) {
  nav {
    width: 100vw;
    margin: 0;
    height: auto;
    flex-direction: row;
    left: 0;
    justify-content: center;
    transition: 0s;
    border-bottom: 1px solid #7FDBFF;
  }
  nav div:first-child,
  nav div:last-child {
    justify-content: flex-start;
  }
  nav .logo {
    padding: 0 0 0 1em;
  }
  nav .logo svg {
    padding-top: 0.15em;
    margin-bottom: -0.5em;
  }
  nav a {
    padding: 0.5em 1em;
    border-bottom: none;
    border-right: 1px solid #7FDBFF;
    line-height: 100%;
    display: flex;
    align-items: center;
  }
  nav a:last-of-type {
    border-right: none;
    text-align: left;
  }
  .nav-toggle + label:before {
    display: none;
  }
}