// VARIABLES
$color-grey-light: #f7f7f7;

.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.social-btns .social-btn,
.social-btns .social-btn:before,
.social-btns .social-btn .fa {
  -webkit-transition: all 0.35s;
  transition: all 0.35s;
  -webkit-transition-timing-function: cubic-bezier(0.31, -0.105, 0.43, 1.59);
  transition-timing-function: cubic-bezier(0.31, -0.105, 0.43, 1.59);
}

.social-btns .social-btn:before {
  top: 90%;
  left: -110%;
}

.social-btns .social-btn .fa {
  -webkit-transform: scale(0.8);
  transform: scale(0.8);
}

.social-btns .social-btn.facebook:before {
  background-color: #3b5998;
}

.social-btns .social-btn.facebook .fa {
  color: #3b5998;
}

.social-btns .social-btn.whatsapp:before {
  background-color: #25d366;
}

.social-btns .social-btn.whatsapp .fa {
  color: #4AC959;
}

.social-btns .social-btn.twitter:before {
  background-color: #3cf;
}

.social-btns .social-btn.twitter .fa {
  color: #3cf;
}

.social-btns .social-btn.instagram:before {
  background: radial-gradient(
    circle at 30% 107%,
    #fdf497 0%,
    #fdf497 5%,
    #fd5949 45%,
    #d6249f 60%,
    #285aeb 90%
  );
}

.social-btns .social-btn.instagram .fa {
  background-image: radial-gradient(
    circle at 30% 107%,
    #fdf497 0%,
    #fdf497 5%,
    #fd5949 45%,
    #d6249f 60%,
    #285aeb 90%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.social-btns .social-btn:focus:before,
.social-btns .social-btn:hover:before {
  top: -10%;
  left: -10%;
}

.social-btns .social-btn:focus .fa,
.social-btns .social-btn:hover .fa {
  color: #fff;
  -webkit-transform: scale(1);
  transform: scale(1);
}

.social-btns {
  height: 40px;
  margin: auto;
  font-size: 0;
  text-align: center;
}

.social-btns .social-btn {
  display: inline-block;
  background-color: $color-grey-light;
  width: 50px;
  height: 50px;
  line-height: 50px;
  margin: 0 10px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: 50%;
  box-shadow: 0 5px 15px -5px rgba(0, 0, 0, 0.1);
  opacity: 0.99;
}

.social-btns .social-btn:before {
  content: "";
  width: 120%;
  height: 120%;
  position: absolute;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

.social-btns .social-btn .fa {
  font-size: 2rem;
  vertical-align: middle;
}