.svg-btn {
  position: relative;
  overflow: hidden;
  background: none;
  padding: 1em;
  background-color: transparent;
  -webkit-transition: background-color 250ms ease-in;
  transition: background-color 250ms ease-in;
  font-size: 1.5rem;
  color: #e47e2a;
  -webkit-transition-property: background-color, color;
  transition-property: background-color, color;
  -webkit-transition-duration: 250ms;
          transition-duration: 250ms;
  -webkit-transition-timing-function: ease-in-out;
          transition-timing-function: ease-in-out;
  -webkit-transition-delay: 0;
          transition-delay: 0;
  border: none;
}
.svg-btn.btn-small {
  font-size: 1rem;
}
.svg-btn.btn-big {
  font-size: 2rem;
}
.svg-btn:before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 1px solid white;
  opacity: 1;
  -webkit-transition-property: opacity;
  transition-property: opacity;
  -webkit-transition-duration: 250ms;
          transition-duration: 250ms;
  -webkit-transition-timing-function: ease-in-out;
          transition-timing-function: ease-in-out;
  -webkit-transition-delay: 0;
          transition-delay: 0;
}
.svg-btn > span {
  position: relative;
}
.svg-btn .btn_svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.svg-btn .btn_svg_shape {
  stroke: #e47e2a;
  stroke-width: 2px;
  stroke-linecap: round;
  fill: transparent;
}
.svg-btn:hover {
  -webkit-transition-delay: 250ms;
          transition-delay: 250ms;
  background-color: rgba(0, 0, 0, 0.4);
  color: white;
}
.svg-btn:hover:before {
  opacity: 0;
}
.svg-btn:hover .btn_svg_shape {
  -webkit-transition-property: stroke-dasharray, stroke-dashoffset;
  transition-property: stroke-dasharray, stroke-dashoffset;
  -webkit-transition-duration: 500ms;
          transition-duration: 500ms;
  -webkit-transition-timing-function: ease-in-out;
          transition-timing-function: ease-in-out;
  -webkit-transition-delay: 0;
          transition-delay: 0;
  stroke-dashoffset: 0 !important;
  -webkit-animation: 500ms pencil ease-in forwards;
          animation: 500ms pencil ease-in forwards;
}
/* Stroke animation. Use ems to scale :) */
@-webkit-keyframes pencil {
  0% {
    stroke-width: 0.5em;
  }
  75% {
    stroke-width: 0.25em;
  }
  100% {
    stroke-width: 0.1em;
  }
}
@keyframes pencil {
  0% {
    stroke-width: 0.5em;
  }
  75% {
    stroke-width: 0.25em;
  }
  100% {
    stroke-width: 0.1em;
  }
}
/* Transition mixin, cause lazy */
/* W00t border-box */
* {
  box-sizing: border-box;
}
*:after,
*:before {
  box-sizing: border-box;
}