/* Basic styles */

body {
  background-color: #eee;
  box-sizing: border-box;
  font-family: "Futura PT", "Futura", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
}

ul, li {
  margin: 0;
  padding: 0;
}

main {
  display: block;
  margin: 100px 20px;
}

/* This is the main nav-wrapper */

.nav-menu {
  background: #333;
  color: #fff;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10;

  
  ul {
    display: inline-block;
    left: -100%;
    position: relative;
    transition: left 0.2s ease-in-out;
  }
  
  li {
    display: block;
    float: left;
    
    a {
      color: #c1c1c1;
      display: block;
      font-size: 24px;
      line-height: 60px;
      height: 50px; 
      margin-top: 1px;
      padding: 0 20px;
      text-align: center;
      
      &:hover span {
        opacity: 1;
        visibility: visible;
      }
      
      i {
        font-size: 36px;
        transition: color 0.2s ease;
        
        &.fa-twitter:hover {
          color: #00aced;
        }
        
        &.fa-linkedin:hover {
          color: #0077b5;
        }
        
        &.fa-github:hover, &.fa-codepen:hover {
          color: #fff;
        }
      }
      
      span {
        @include position(absolute, 0% 0 0 100%);
        @include size(100%);
        font-size: 24px;
        line-height: 55px;
        opacity: 0;
        padding: 0 20px;
        text-align: left;
        transition: opacity 0.2s ease, visibility 0.2s ease; 
        visibility: hidden;
      }
    }
  }
}

/* This is the site logo */

.nav-logo {
  font-size: 24px;
  letter-spacing: 1.3px;
  position: absolute;
  top: 12px;
  right: 30px;
  transition: 0.3s opacity ease;
  
  a {
    color: #fefefe;
  }
}

/* This is the trigger button */

.nav-trigger {
  background: #1abc9c;
  cursor: pointer;
  font-size: 36px;
  float: left;
  padding: 5px 10px;
  
  &:hover {
    background: darken(#1abc9c, 8%);
  }
  
  i {
    color: #fff;
    padding: 5px;
    transition: transform 0.2s ease-in-out;
  }
}

/* :checked state */

input[type=checkbox]:checked + .nav-menu {
  .nav-trigger i {
    @include transform(rotate(270deg));
  }
  .nav-logo {
    opacity: 0;
  }
}

/* Icons turn back */

input[type=checkbox]:checked + .nav-menu ul {
  left: 0;
}

/*Input out of the window */

input[type=checkbox] {
  position: absolute;
  top: -99px;
}