:root{
  --project-primary-color: #1B83C6
}
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
/* 0. common */

*{
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  font-weight: 500;
}

.header{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  box-sizing: border-box;
}
.header > a {
  width: 123px;
}
.header img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.container{
  height: 100%;
}
.main_logo{
  width: 200px;
  height: 45px;
  background: url('../../static/img/main-logo-horizontal.webp') no-repeat center center / contain;
}
.main_logo img{
  height: 100%;
}

.btn_box{
  display: inline-block;
  vertical-align: middle;
}
.btn.btn_default{
  padding: 10px 50px;
  color: #fff;
  font-size: 20px;
  border-color: #fff;
  background-color: transparent;
}
.chrome_download{
  position: fixed;
  bottom: 20px;
  right: 20px;
}
.chrome_download .msg{
  color: #fff;
}

.hidden{
  display: none !important;
}
.is_visible{
  display: block !important;
}

/* 0-1.project gnb */
.gnb_nav {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.gnb_list {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0;
  text-align: center;
}
.gnb_item {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  border-radius: 500px;
  background: transparent;
  color: #E5E5E5;
  transition: all 0.3s ease-in-out;
}
.gnb_item:hover {
  border-radius: 500px;
  background: rgba(115, 115, 115, 0.30);
}

.gnb_item.is_active {
  color: #fff;
  background: linear-gradient(45deg, #36A11D 0%, #088486 100%);
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.15);
}
.gnb_item a {
  width: 100%;
  padding: 10px 12px;
  color: #FFF;
  text-align: center;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  font-family: Pretendard;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 20px; /* 125% */
  white-space: nowrap;
}

.snb{
  display: none;
  position: fixed;
  bottom: 0;
  right: -280px;
  width: 270px;
  height: calc(100% - 64px);
  padding: 16px 8px 0 8px;
  align-items: center;
  z-index: 1000;
  background: rgba(17, 17, 17, 0.80);
  backdrop-filter: blur(4px);
  overflow-y: auto;
  transition: right 0.3s ease-in-out;
}
.snb.is_active {
  right: 0;
}
.snb_list{
  font-size: 0;
  text-align: center;
}
.snb_list .snb_item{
  display: inline-block;
  vertical-align: middle;
  padding: 0 20px;
}
.snb_list .snb_item+.snb_item{
  border-left: 1px solid #333;
}
.snb_list .snb_item a{
  color: #fff;
  font-size: 16px;
  font-weight: 400;
}

.util_wrap {
  position: relative;
  z-index: 1000;
}

.util_list {
  display: flex;
}

.util_list .util_item+.util_item {
  margin-left: 10px;
}

.util_item .util_btn {
  position: relative;
  width: 40px;
  height: 40px;
}

.util_audio .util_btn:after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: url(../../static/img/icon/ic-volumeoff.svg) no-repeat center / 70% auto;
}

.util_audio .util_btn.is_unmute {
  border-color: #4b3065;
  background: linear-gradient(#6D0DCC, #520f95);
}

.util_audio .util_btn.is_unmute:after {
  background-image: url(../../static/img/icon/ic-volumon.svg);
}

.container.hall .util_audio{
  display: none;
}

.util_menu {
  display: none;
}

.util_menu .util_btn i {
  width: 20px;
  height: 2px;
  background-color: #fff;
  display: block;
  margin: 5px auto;
  border-radius: 5px;
  -webkit-transition: all 0.3s ease-in-out;
  -o-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
}

.util_menu .util_btn.is_active i:nth-of-type(2) {
  opacity: 0;
}

.util_menu .util_btn.is_active i:nth-of-type(1) {
  -webkit-transform: translateY(8px) rotate(45deg);
  -ms-transform: translateY(8px) rotate(45deg);
  -o-transform: translateY(8px) rotate(45deg);
  transform: translateY(8px) rotate(45deg);
}

.util_menu .util_btn.is_active i:nth-of-type(3) {
  -webkit-transform: translateY(-6px) rotate(-45deg);
  -ms-transform: translateY(-6px) rotate(-45deg);
  -o-transform: translateY(-6px) rotate(-45deg);
  transform: translateY(-6px) rotate(-45deg);
}

.intro-skip-box{
  display: none;
  position: fixed;
  z-index: 150;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%)
}
.main_video{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pre_video_wrap{
  height: 100%;
  overflow-y: hidden;
}


/* use only desktop action */
@media screen and (min-width: 1024px) {
  .btn.btn_default:hover{
    color: #333;
    background-color: #fff;
  }
}

@media screen and (max-width: 1024px) {
  .header {
    height: 64px;
  }
  .header > a {
    width: 94px;
  }
  .util_menu {
    display: block;
  }
  
  .gnb_nav.pc {
    display: none;
  }
  .snb {
    display: block;
  }
  .gnb_nav {
    position: initial;
    top: initial;
    left: initial;
    transform: none;
  }
  .gnb_list {
    flex-direction: column;
    justify-content: flex-start;
    gap: 16px;
  }

  .gnb_list .gnb_item {
    width: 100%;
    border-radius: 12px;
  }
  .gnb_item a {
    width: 100%;
    padding: 20px 16px;
    font-size: 20px;
    text-align: left;
  }

  .gnb_list .gnb_item .gnb_item_inner {
    font-size: 2.2vh;
  }
}

@media screen and (max-width: 480px) {
  .header > a {
    width: 100px;
  }
  .main_logo{
    width: 36vw;
  }

  .gnb_box {
    padding: 55px 0;
  }

  .chrome_download{
    display: none;
  }

  .util_wrap{
    width: 40px;
  }
  .util_item.util_audio,
  .util_item.util_menu{
    position: fixed;
    top: 10px;
  }
  .util_item.util_audio{
    z-index: 900;
    /* left: 15px; */
  }
  .btn_sount_desc{
    display: none;
  }
  .util_item.util_menu{
    right: 15px;
  }
}