@charset "utf-8";

/* header.css */
@import url(reset.css);
@import url(common.css);

:root {
    --header-gap: 100px;
    --header-width: 320px;
    --header-height: 100%;
    --header-padding-base: 58px;
    --logo-width: 140px;
    --gnb-gap: 20px;

    --header-mobile-bg-color: #0c1526;
    --header-mobile-sub-menu-bg-color: #212d44;
    --header-mobile-border-bottom-color: #4e5c71;

    --nav-transition-duration: 1s;
    --gnb-menu-transition-duration: 0.3s;
}


/***************************************************************************************
| 헤더
****************************************************************************************/
#header {
    z-index: 1000;
    position: fixed;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--header-gap);
    width: var(--header-width);
    height: var(--header-height);
    padding: calc(var(--header-padding-base) * 2) 0;
}
#header.scrolled {
    background-color: #fff;
    box-shadow: 0 3px 5px rgba(0,0,0,0.05);
}
#header.scrolled #logo img {content: url('/img/header/logo_default.webp');}
#header.scrolled .modal-btn > div {background-color: var(--color-black-01);}


/***************************************************************************************
| 로고
****************************************************************************************/
#logo {
    z-index: inherit;
    flex-shrink: 0;
    width: var(--logo-width);
    aspect-ratio: 1/0.369;
    /* filter: drop-shadow(1px 1px 1px rgba(0,0,0,0.25)); */
}
#logo img {
    width: 100%;
    object-fit: contain;
}


/***************************************************************************************
| 주 메뉴
****************************************************************************************/
#nav {z-index: inherit;}
#gnb {
    display: flex;
    flex-direction: column;
    gap: var(--gnb-gap);
    width: calc(var(--logo-width) + 20px);
    margin-left: 20px;
}
a.gnb-menu-link {
    font-size: var(--font-size-default);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-01);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.25);
    transition: color var(--gnb-menu-transition-duration) ease, font-size var(--gnb-menu-transition-duration) ease;
}
#header.state-index a.gnb-menu-link:hover {
    background: linear-gradient(to right, var(--color-green-02), var(--color-blue-03));
    font-size: var(--font-size-lg-s);
    font-weight: var(--font-weight-semi-bold);
    color: transparent;
    text-shadow: none;
    -webkit-background-clip: text;
}


/***************************************************************************************
| 서브 메뉴
****************************************************************************************/
.sub-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--gnb-menu-transition-duration) ease-in-out;
}
.gnb-menu.menu-open .sub-menu {
    max-height: 200px; /* sub-menu의 예상 최대 높이 */
}
.sub-menu li {
    border-bottom: 1px solid var(--header-mobile-border-bottom-color);
    background-color: var(--header-mobile-sub-menu-bg-color);
}
.sub-menu li a {
    display: flex;
    padding: calc(var(--header-padding-base) / 2) var(--header-padding-base);
    font-size: var(--font-size-lg-s);
    font-weight: var(--font-weight-semi-bold);
    color: #fff;
}


/***************************************************************************************
| 햄버거 버튼
****************************************************************************************/
.modal-btn {
    flex-shrink: 0;
    display: none;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-end;
    width: 36px;
    aspect-ratio: 1/0.722;
    cursor: pointer;
}
.modal-btn > div {
    height: 3px;
    background-color: #fff;
    /* box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5); */
    transition: transform var(--nav-transition-duration) ease;
}
.modal-btn > div:nth-child(odd) {width: 100%;} 
.modal-btn > div:nth-child(2) {width: 80%;} 

@media screen and (max-width: 1600px) {
    :root {
        --header-width: 100%;
        --header-height: 120px;
        --header-padding-base: 40px;
        --logo-width: 120px;
        --gnb-menu-link-after-size: 30px;
    }
    #header {
        top: 0;
        flex-direction: row;
        justify-content: space-between;
        padding: var(--header-padding-base);
    }
    #header.scroll {background-color: #fff;}
    #logo {z-index: 1100;}
    #nav {
        overflow-y: scroll;
        visibility: hidden;
        position: absolute;
        top: 0;
        left: 100%;
        width: 100%;
        height: 100dvh;
        background-color: var(--header-mobile-bg-color);
        transition: visibility var(--nav-transition-duration) ease, left var(--nav-transition-duration) ease;
    }
    #nav.open {
        left: 0;
        visibility: visible;
        display: flex;
    }
    #gnb {
        gap: 0;
        width: 100%;
        margin-left: 0;
        padding-top: var(--header-height);
    }
    a.gnb-menu-link {
        position: relative;
        display: flex;
        padding: calc(var(--header-padding-base) / 1.25) var(--header-padding-base);
        border-bottom: 1px solid var(--header-mobile-border-bottom-color);
        background-color: var(--header-mobile-bg-color);
        font-size: var(--font-size-lg-x);
        font-weight: var(--font-weight-semi-bold);
        color: #fff;
    }
    a.gnb-menu-link::after {
        position: absolute;
        top: 50%;
        right: var(--header-padding-base);
        width: var(--gnb-menu-link-after-size);
        aspect-ratio: 1/1;
        border-radius: 50%;
        border: 3px solid #fff;
        background: url('/img/common/icon-chevron-down-white.svg') no-repeat center/contain;
        transform: translateY(-50%);
        transition: transform var(--gnb-menu-transition-duration) ease;
        content: '';
    }
    .gnb-menu.menu-open a.gnb-menu-link::after {transform: translateY(-50%) rotate(-180deg);}
    .modal-btn {
        z-index: 1100;
        display: flex;
    }
    .modal-btn.close {
        overflow: hidden;
        position: relative;
        aspect-ratio: 1/1;
    }
    .modal-btn.close > div {box-shadow: none;}
    .modal-btn.close > div:nth-child(odd) {
        width: 40px;
    }
    .modal-btn.close > div:nth-child(1) {transform: rotate(45deg) translate(12px, 12px);}
    .modal-btn.close > div:nth-child(3) {transform: rotate(-45deg) translate(10px, -12px);}
    .modal-btn.close > div:nth-child(2) {transform: translateX(110%);}
}
@media screen and (max-width: 1100px) {
    :root {
        --header-height: 100px;
        --header-padding-base: 30px;
        --logo-width: 100px;
    }
}
@media screen and (max-width: 640px) {
    :root {
        --gnb-menu-link-after-size: 20px;
    }
    a.gnb-menu-link {font-size: var(--font-size-lg-s);}
    a.gnb-menu-link:hover {font-size: var(--font-size-lg-s);}
    .sub-menu li a {font-size: var(--font-size-default);}
}
@media screen and (max-width: 480px) {
    :root {
        --header-height: 80px;
        --header-padding-base: 15px;
        --logo-width: 80px;
    }
}
@media screen and (max-width: 400px) {
    :root {
        --header-height: 60px;
        --header-padding-base: 15px;
        --logo-width: 80px;
    }
}


/***************************************************************************************
| #header.dark
****************************************************************************************/
/* #header.dark {background: linear-gradient(to right, #fff, rgba(255, 255, 255, 0.8) 70%, rgba(255, 255, 255, 0));} */
#header.dark #logo img {content: url('/img/header/logo_default.webp');}
#header.dark a.gnb-menu-link {
    color: var(--color-black-01);
}
#header.dark a.gnb-menu-link:hover {
    background: linear-gradient(to right, var(--color-green-02), var(--color-blue-03));
    color: transparent;
    text-shadow: none;
    -webkit-background-clip: text;
}


/***************************************************************************************
| #header.state-sub
****************************************************************************************/
:root {
    --header-state-sub-height: clamp(80px, 11.42vw, 160px);
    --header-state-sub-bg-color: #fff;
    --header-state-sub-gnb-menu-width: 180px;
    --header-state-sub-enter-bg-color: rgba(12, 21, 38, 0.96);
    --header-state-sub-header-bg-after-bg-color: #4e5c71;

    --header-bg-height: 420px;
}
#header.state-sub {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: var(--header-state-sub-height);
    padding: calc(var(--header-padding-base) / 2) var(--header-padding-base) 0;
    background-color: var(--header-state-sub-bg-color);
}
#header.state-sub.enter a.gnb-menu-link {color: #fff;}

#header.state-sub #nav {
    height: 100%;
    padding-right: 0;
    transition: padding-right 0.4s ease-in-out;
}
#header.state-sub.enter #nav {
    padding-right: 60px;
}
#header.state-sub #gnb {
    flex-direction: row;
    align-items: center;
    gap: 0;
    width: 100%;
    height: 100%;
    margin-left: 0;
}
#header.state-sub .gnb-menu {
    position: relative;
    width: var(--header-state-sub-gnb-menu-width);
    height: 100%;
    transition: width 0.3s ease-in-out;
}
#header.state-sub.enter .gnb-menu {width: calc(var(--header-state-sub-gnb-menu-width) + 20px);}
#header.state-sub .gnb-menu::after {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0%;
    height: 4px;
    background-color: #fff;
    transform: translateX(-50%);
    transition: width 0.4s ease-in-out, transform 0.4s ease-in-out;
    content: '';
}
#header.state-sub .gnb-menu.on::after {
    width: 100%;
}

#header.state-sub a.gnb-menu-link {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    padding-top: calc(var(--header-padding-base) / 2);
    font-size: var(--font-size-lg-ss);
    font-weight: var(--font-weight-bold);
    color: var(--color-black-01);
    text-shadow: unset;
}
#header.state-sub .sub-menu {
    max-height: 0;
    padding-top: 0;
    transition: unset;
}
#header.state-sub.enter .sub-menu {
    max-height: unset;
    padding-top: calc(var(--header-padding-base) / 2);
}
#header.state-sub .sub-menu li {
    border-bottom: unset;
    background-color: unset;
}
#header.state-sub .sub-menu li a {
    opacity: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
    font-size: var(--font-size-lg-ss);
    transition: opacity 0.3s ease-in-out;
}
#header.state-sub.enter .sub-menu li a {
    opacity: 1;
    font-weight: var(--font-weight-bold);
    color: var(--header-state-sub-header-bg-after-bg-color);
}
#header.state-sub.enter .sub-menu li a:hover {color: #fff;}

#header-bg {
    position: relative;
    overflow: hidden;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 0;
    background: var(--header-state-sub-enter-bg-color);
    z-index: 98;
    opacity: 0;
    transition: height 0.3s ease-in-out, opacity 0.2s ease-in-out;
}
#header.state-sub.enter #header-bg {
    opacity: 1;
    height: var(--header-bg-height);
}
#header.state-sub.enter #header-bg::after {
    position: absolute;
    top: var(--header-state-sub-height);
    width: 100%;
    height: 1px;
    background-color: var(--header-state-sub-header-bg-after-bg-color);
    content: '';
}