/* ********** ********** ********** */
/*           CUSTOM CSS             */
/* ********** ********** ********** */

:root {
  --m-color: #21c3bb;
  --t-color: #1f1f1f;
  --b-color: #000000;
  --w-color: #ffffff;
  --g1-color: #4c4c4c;
  --g2-color: #797979;
  --g3-color: #a5a5a5;
  --g4-color: #d2d2d2;
  --g5-color: #e9e9e9;
  --g6-color: #f4f4f4;
}

/* o_btnBox */
.o_btnBox a {
  color: #009890;
  background-color: #fff;
  width: 20rem;
  height: 3.8rem;
  border-radius: 999px;
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  position: relative;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 30px #21c3bb;
}

.o_btnBox a::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  -webkit-animation-duration: 1s;
  animation-duration: 1s;
  border: 0.1rem solid #009890;
  border-radius: 999px;
}
.o_btnBox a:hover:before {
  -webkit-animation-name: o_ripple-out;
  animation-name: o_ripple-out;
}

@keyframes o_ripple-out {
  100% {
    top: -1rem;
    right: -1rem;
    bottom: -1rem;
    left: -1rem;
    opacity: 0;
  }
}

@media all and (max-width: 991px) {
  /* o_btnBox */
  .o_btnBox a {
    width: 45vmin;
    height: 10vmin;
    font-size: 3.6vmin;
  }
}

/* 그림자 */
.o_shadowBox {
  box-shadow: 0.2rem 0.2rem 0.6rem 0 rgba(0, 0, 0, 20%);
}
.o_textShadow {
  text-shadow: 0 4px 4cm rgba(0, 0, 0, 0.25);
}

/* floatBtn */
.o_floatBtn {
  position: fixed;
  top: 10%;
  right: 5%;
  width: 13rem;
  transition: all 0.3s;
  z-index: 10;
}
.o_floatBtn a {
  display: block;
}
.o_floatBtn:hover {
  transform: translateY(-10px);
}

@media all and (max-width: 991px) {
  .o_floatBtn {
    top: 20%;
    right: 1%;
    width: 23vmin;
  }
}