@import "bourbon";

/* Demo styling */

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

/* Buttons at the center */

.wrap {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -259px;
  margin-left: -89px;
  text-align: center;
}

/* General styling for the links */

a {
  padding: 15px 30px;
  text-decoration: none;
  font-size: 18px;
  display: block;
  margin: 20px auto;
}

/* BUTTON 1 */

.btn, .btn:link, .btn:visited {
  color: #2c3e50;
  line-height: 1em;
  color: inherit;
  text-decoration: none;
  display: inline-block;
  border-radius: 4px;
  background-color: #fff;
  background-color: rgba(255,255,255, 0);
  box-shadow: 0 0 0 0 #2c3e50 inset, 0.3em 0.2em 0 0 #bbb;
  border: 0.2em solid #2c3e50;
  padding: 0.8em;
  text-align: center;
  transition: 0.25s box-shadow, 0.25s transform;
  
  &:hover {
    box-shadow: 0 4em 0 0 #2c3e50 inset, 0em 0em 0 0 #bbb;
    transform: translate(0.3em, 0.2em);
    color: #fff;
  }
}

/* BUTTON 2 */

.btn2, .btn2:link, .btn2:visited {
   background-color: #5b657c;
   border: none;
   border-radius: 3px;
   box-shadow: 0 -3px 0 rgba(0,0,0,0.15) inset;
   color: #fff;
  letter-spacing: .1em;
   cursor: pointer;
   position: relative;
   text-align: center;
   text-transform: uppercase;
   vertical-align: middle;
   white-space: nowrap;
  transition-property: transform;
  transform: translateZ(0);
  transition: box-shadow 0.5s cubic-bezier(0.390, 0.500, 0.150, 1.360);
   
   &:hover {
     box-shadow: 0 0 0 28px rgba(0,0,0,0.25) inset;
   }
  
  &:active {
    transform: translateY(3px);
  }
 }

/* BUTTON 3 */

.btn3, .btn3:link, .btn3:visited {
  color: #333;
  font-size: .8em;
  letter-spacing: .1em;
  text-transform: uppercase;
  min-width: 100px;
  max-width: 60%;
  position: relative;
  margin: 0 auto;
  border: 2px solid transparent;
  transition: all .2s cubic-bezier(0.455, 0.030, 0.515, 0.955);

  &:after, &:before {
    content: "";
    position: absolute;
    left: - 1em;
    top: -2px;
    height: 3.3em;
    width: 0;
    border: 1px solid #c75842;
    transition: inherit;
  }

  &:after {
    left: auto;
    right: -1em;
  }

  &:hover {
    border-color: #c75842;
    transition: border-color .2s .2s cubic-bezier(0.455, 0.030, 0.515, 0.955);
    
    &:after, &:before {
      right: -2px;      
      transition: all .2s cubic-bezier(0.455, 0.030, 0.515, 0.955);
    }
    
    &:before {
      left: -2px;
      right: auto;
    }
  }
}

/* BUTTON 4 */

.btn4, .btn4:link, .btn4:visited {
  background: #f1c40f;
  color: #fefefe;
  transition: box-shadow .18s ease;
  
  &:hover {
    box-shadow: inset 0 0 0 5px darken(#f1c40f, 10%);
  }
}

/* BUTTON 5 */

.btn5, .btn5:link, .btn5:visited {
  border: none;
  outline: none;
  color: #fefefe;
  background-color: #9b59b6;
  border-radius: 3px;
  
  &:hover, &:focus {
    transition-timing-function: cubic-bezier(0.6, 4, 0.3, 0.8);
    animation: gelatine 0.5s 1;
  }
}

// Bourbon mixin

@include keyframes(gelatine) {
  from,to {
    @include transform(scale(1, 1));
  }
  25% {
    @include transform(scale(0.9, 1.1));
  }
  50% {
    @include transform(scale(1.1, 0.9));
  }
  75% {
    @include transform(scale(0.95, 1.05));
  }
  from,to {
    @include transform(scale(1, 1));
  }
  25% {
    @include transform(scale(0.9, 1.1));
  }
  50% {
    @include transform(scale(1.1, 0.9));
  }
  75% {
    @include transform(scale(0.95, 1.05));
  }
}

/* BUTTON 6 */

.btn6, .btn6:link, .btn6:visited {
  padding: 13px 0;
  border: 1px solid #333;
  color: #333;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 3px;
  transition: all .2s ease-in-out;
  
  &:hover {
    background: #333;
    border: 1px solid #333;
    color: #fefefe;
    border-radius: 30px;
  }
}