.button {
  float: left;
  min-width: 150px;
  max-width: 250px;
  display: block;
  padding: 10px 20px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
  font-size: 13px;
  text-align: center;
  border: 2px solid;
  background: none;
  color: inherit;
  vertical-align: middle;
  position: relative;
  z-index: 1;
  -webkit-backface-visibility: hidden;
  -moz-osx-font-smoothing: grayscale;

  &:hover,
  &:focus {
    cursor: pointer;
  }
}

.button {
  overflow: hidden;
  padding: 0;
  -webkit-transition: border-color 1s, background-color 1s;
  transition: border-color 1s, background-color 1s;
  -webkit-transition-timing-function: cubic-bezier(0.2, 1, 0.3, 1);
  transition-timing-function: cubic-bezier(0.2, 1, 0.3, 1);
}

.button::after {
  content: attr(data-text);
  position: absolute;
  width: 100%;
  height: 100%;
  top: -1px;
  left: 0;
  opacity: 0;
  color: $main-color;
  -webkit-transform: translate3d(0, 25%, 0);
  transform: translate3d(0, 25%, 0);
}

.button > span {
  display: block;
}

.button::after,
.button > span {
  padding: 10px 20px;
  -webkit-transition: -webkit-transform 0.3s, opacity 0.3s;
  transition: transform 0.3s, opacity 0.3s;
  -webkit-transition-timing-function: cubic-bezier(0.3, 1, 0.3, 1);
  transition-timing-function: cubic-bezier(0.3, 1, 0.3, 1);
}

.button:hover {
  border-color: $main-color;
  background-color: rgba(63, 81, 181, 0);
}

.button:hover::after {
  opacity: 1;
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
}

.button:hover > span {
  opacity: 0;
  -webkit-transform: translate3d(0, -25%, 0);
  transform: translate3d(0, -25%, 0);
}

a.button {
  span {
    padding: 10px 20px;
  }

  &::before {
    content: none;
  }
}