header{
    background: #fff;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 2;
    transition: box-shadow .5s;
}

header:hover,
header.scrolled{
    box-shadow: 0 4px 15px 0 rgba(0, 0, 0, 0.05);
}

header.open{
    box-shadow: 0 20px 50px 0 rgba(13, 37, 74, 0.10);
}

header .container{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 32px;
}


/* #main-nav  */

#main-nav{
    width: 100%;
    max-width: 1440px;
}

#main-nav .container{
    height: 100px;
    position: relative;
}

#nav-functions{
    display: flex;
    align-items: center;
    gap: 92px;
}

#nav-functions .brand picture{
    width: 213px;
    height: auto;
}

#nav-menu{
    display: flex;
    align-items: center;
    gap: 40px;
}

#nav-menu li{
    color: #222;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    padding: 10px;
    transition: transform .3s;
}
#nav-menu li span{
    color: #ADBDCC;
    font-variation-settings: 'FILL' 0, 'wght' 600, 'GRAD' 0, 'opsz' 20;
    margin-bottom: 2px;
    font-size: 18px;
    transition: transform .3s;
}

#nav-menu li:hover{
    font-weight: 700;
}

#nav-menu li.active{
    font-weight: 700;
}

#nav-menu li.active span{
    color: #1363DF;
    transform: rotateX(180deg);
}

#nav-utils{
    display: flex;
    align-items: center;
    gap: 10px;
}

#nav-utils{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

#nav-utils li{
    cursor: pointer;
}

#signin-dropdown{
    position: absolute;
    width: 230px;
    top: 80px;
    /* right: -12px; */
    right: -65px;
}

/* #sub-nav-desktop  */
#sub-nav-desktop{
    display: none;
    width: 100%;
    box-shadow: 0 20px 50px 0 rgba(13, 37, 74, 0.10);
    position: fixed;
    top: 100px;
    background: #fff;
}

#sub-nav-desktop .wrapper{
    display: flex;
    justify-content: center;
    width: 100%;
}

#sub-nav-desktop .wrapper .container{
    border-top: 1px solid #C6C7D8;
    padding: 30px 32px 50px 32px;
    flex-direction: column;
}

#sub-nav-desktop .wrapper .container section{
    display: none;
    flex-direction: column;
    gap: 16px;
    width: 100%;
}

#sub-nav-desktop .wrapper .container section.active{
    display: flex;
}

.sub-nav-menu{
    display: flex;
    gap: 40px;
}

.sub-nav-menu a{
    display: flex;
    align-items: center;
    padding: 30px 40px;
    gap: 14px;
    flex: 1 0 0;
    border-radius: 20px;
    background: #F2F2F7;
    cursor: pointer;
}

.sub-nav-menu a:hover{
    background: #E8E8F3;
}

.sub-nav-menu a div:first-child{
    width: 50px;
    height: 50px;
    padding: 10px 8px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sub-nav-menu a div:last-child{
    display: flex;
    flex-direction: column;
    gap: 5px;
    color: #454545;
    font-size: 16px;
}

header .{
    display: flex;
}

header .mobile-only{
    display: none;
}

#sub-nav-mobile{
    display: none
}

@media screen and (max-width: 1280px){
    header .desktop-only{
        display: none !important;
    }

    header .mobile-only{
        display: flex;
    }

    header #main-nav{
        z-index: 1;
        background: #fff;
    }

    header #main-nav .container{
        padding: 15px 10px 15px 20px;
        height: 70px;
    }


    #nav-functions .brand{
        height: 28px;
    }

    #nav-functions .brand picture{
        width: 390px;
        height: auto;
    }

    #mobile-nav-trigger{
        padding: 5px;
        width: 40px;
        height: 40px;
        background: url(/assets/images/icon_hamburger.svg) no-repeat;
        border-radius: 0;
        background-position: center;
    }

    header.open{
        box-shadow: none;
    }
    
    header.open #main-nav{
        border-bottom: 1px solid #C6C7D8;        
    }

    header.open #mobile-nav-trigger{
        background: url(/assets/images/icon_close.svg) no-repeat;
        background-position: center;
    }

    header.open #sub-nav-mobile{
        display: flex;
        position: fixed;
        height: 100dvh;
        width: 100vw;
        top: 0;
        padding-top: 70px;
        z-index: 0;
        left: 0;
        background: #fff;
        overscroll-behavior: contain; /* 스크롤 체인 차단 */
    }

    #sub-nav-mobile .wrapper{
        width: 100%;
    }

    #sub-nav-mobile .wrapper .container{
        padding: 0;
        border-bottom: 1px dashed #c6c7d8;
    }

    #sub-nav-mobile .wrapper .container .main-nav{
        width: 100%;
    }
    
    #sub-nav-mobile .accordion-nav{
        border-top: 0;
    }

    #sub-nav-mobile .accordion-nav .accordion-item{
        border-bottom: 0;
    }

    #sub-nav-mobile .accordion-nav .accordion-item .accordion-link{
        padding: 20px;
    }

    #sub-nav-mobile .accordion-nav .accordion-item .accordion-link::before{
        right: 20px;
        top: calc(50% - 12px);
    }

    #sub-nav-mobile .accordion-nav .accordion-item .accordion-desc{
        padding: 10px 0;
    }
    #sub-nav-mobile .accordion-nav .accordion-item .accordion-desc a{
        border-radius: 0;
        text-decoration: none;
        padding: 15px 20px;
    }


    #sub-nav-mobile .accordion-nav .accordion-item .accordion-name{
        color: #222;
        font-size: 18px;
        font-weight: 700;
    }

    #sub-nav-mobile .accordion-nav .accordion-item .accordion-link::before{
        font-size: 22px;
    }

    #sub-nav-mobile .main-nav > a{
        display: block;
        padding: 20px;
        color: #222;
        font-size: 18px;
        font-weight: 700;
    }

    .sub-nav-menu a div{
        gap: 10px;
    }

    .sub-nav-menu a div:first-child{
        width: 40px;
        height: 40px; 
    }

    .sub-nav-menu a div:last-child{
        gap: 2px;
    }
    .sub-nav-menu .list-h2{
        color: #111;
        font-size: 16px;
        font-weight: 400;
    }

    .sub-nav-menu a div > p{
        color: #454545;
        font-size: 14px;
        font-weight: 400;
    }


}


/* 아코디언 */
.accordion-nav {
    border-top: 2px solid #777;
    width: 100%;
}
.accordion-nav .accordion-item {
    border-bottom: 1px solid #C6C7D8; 
}
.accordion-nav .accordion-item .accordion-link {
    display: block; 
    position: relative; 
    padding: 30px 20px; 
    transition: all 0.3s;
}
.accordion-nav .accordion-item.active .accordion-link {
    
}
.accordion-nav .accordion-item .accordion-link::before {
    content: "keyboard_control_key"; 
    font-family: 'Material Symbols Rounded';
    position: absolute;
    right: 20px;
    font-size: 26px;
    transition: all 0.3s;
}
.accordion-nav .accordion-item.active .accordion-link::before {
    transform: rotateX(180deg);
}
.accordion-nav .accordion-name {
    position: relative; 
    width: calc(100% - 50px); 
    font-size: 20px;
    font-style: normal;
    font-weight: 500;
}

.accordion-nav .accordion-item .accordion-desc {
    display: none; 
    padding: 0 20px 30px 20px;   
    color: #555;
    font-size: 18px;
}

.accordion-nav .accordion-item .accordion-desc a{
    color: #2192FF;
}

.accordion-nav .accordion-item .accordion-desc a:hover{
    text-decoration: underline;
}


@media screen and (max-width: 1280px){
    .accordion-nav .accordion-item .accordion-link{
        padding: 20px 0;
    }

    .accordion-nav .accordion-item .accordion-link::before{
        right: 0;
        top: calc(50% - 10px);
    }

    .accordion-nav .accordion-name{
        font-size: 18px;
    }
  
    .accordion-nav .accordion-item .accordion-desc{
        font-size: 16px;
        padding: 0;
        padding-bottom: 20px;
    }
}