/* 기본: 가장 작은 해상도 기준 (모바일 세로) */

/* ================================
   header
   ================================ */

/* pc nav */
.main-nav {
    display: none;
    z-index: 999;
    background-color: #ffffff;
}
.site-header {
    position: fixed;
    width: 100%;
    height: 6rem;
    border-bottom: 1px solid #dee2e6;
    background-color: transparent;
    z-index: 9999;
}
.site-header.scrolled {
    background-color: #ffffff;
}
.site-header .wrapper {
    width: 100%;
    height: 6rem;
    padding: 1.6rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.site-header h1 img {
    height: 2.5rem;
}
.mobile-header-btn {
    display: flex;
}
/* 모바일 - 언어 선택 스타일 */
.mobile-language-switcher {
    position: relative;
}
.mobile-language-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 6rem;
}
.mobile-language-icon .feather-globe {
    width: 2rem;
    height: 2rem;
    stroke: #ffffff;
    stroke-width: 2;
}
.site-header.scrolled .feather-globe {
    stroke: #333;
}
.mobile-language-dropdown {
    position: absolute;
    top: calc(100% - 6px);
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 1rem 1.75rem;
    border: 1px solid #eeeeee;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-radius: 0.8rem;
    z-index: 100;
    text-align: center;
    font-size: 1.4rem;
    color: #333333;
    height: 0;
    opacity: 0;
    overflow: hidden;
    transition: height 0.3s ease, opacity 0.3s ease;
}
.mobile-language-switcher.active .mobile-language-dropdown {
    display: block;
    opacity: 1;
}
.mobile-language-dropdown li {
    margin-bottom: 1rem;
}
.mobile-language-dropdown li:last-child {
    margin-bottom: 0;
}

/* 모바일 - 햄버거 버튼 스타일 */
.hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 4rem;
    height: 6rem;
    background: none;
    border: none;
    cursor: pointer;
}
.hamburger-line {
    display: block;
    content: '';
    width: 2rem;
    height: 2px;
    background-color: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
}
.site-header.scrolled .hamburger-line {
    background-color: #333;
}
/* 햄버거 → X 애니메이션 */
.hamburger-btn.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}
.hamburger-btn.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* mobile nav */
.mobile-nav {
    position: fixed;
    top: 6rem;
    bottom: 0;
    left: -100%;
    width: 100vw;
    height: calc(100vh - 6rem); /* header 제외 */
    background-color: #ffffff;
    transition: left 0.3s ease;
    z-index: 999; /* header 아래 */
    overflow-y: auto;
}
.mobile-nav.active {
    left: 0;
}
.mobile-nav .wrapper {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: auto;
    min-height: 100%; /* 스크롤 커버 */
    overflow: hidden;
    position: relative;
    padding: 2rem 2rem 0 2rem;
}
.has-sub {
    width: 100%;
}
.has-sub .sub-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 3.6rem;
    font-weight: 600;
    font-size: 1.6rem;
}
/* has-sub button 아이콘 */
.toggle-icon {
    width: 1.4rem;
    height: 1.4rem;
    margin-left: 8px;
    transition: transform 0.3s ease;
    transform: rotate(0deg);
    stroke: #666666;
    stroke-width: 2;
}
.has-sub.open .toggle-icon {
    transform: rotate(180deg);
}
.sub-menu {
    height: 0;
    overflow: hidden;
    transition: height 0.3s ease;
    /*background-color: #f4f4f4;*/
    border-radius: 0.8rem;
}
.sub-menu li {
    font-size: 1.5rem;
    font-weight: 500;
    padding: 0.7rem 1.2rem;
    color: #666666;
}
.sub-menu li:first-child {
    padding-top: 0.8rem;
}
.sub-menu li:last-child {
    padding-bottom: 2rem;
}
.sub-menu li a:focus,
.sub-menu li a:active,
.sub-menu li a.active {
    text-decoration: underline;
}
.mobile-remote {
    width: 100%;
    position: absolute;
    bottom: 2.8rem;
    left: 50%;
}
.mobile-remote a {
    display: block;
    text-align: center;
    font-weight: 600;
    border-radius: 100px;
    background: linear-gradient(45deg, #4871e5, #00baba);
    color: #ffffff;
    padding: 1rem 0;
    width: calc(100% - 4rem);
    font-size: 1.4rem;
    transform: translateX(-50%);
}

/* ================================
   footer
   ================================ */

.site-footer {
    background-color: #222222;
}
.site-footer .wrapper {
    width: 100%;
    padding: 3rem 2rem 4.2rem 2rem;
}
.site-footer h1 {
    margin-bottom: 2.4rem;
}
.site-footer h1 img {
    height: 2.5rem;
}
.footer-main {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.footer-sns {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2.4rem;
}
.sns-icon {
    height: 2.4rem;
}
.youtube, .instagram, .facebook {
    width: 2.4rem;
    height: 2.4rem;
    stroke: #eeeeee;
    stroke-width: 1.5;
}
.footer-info-group {
    color: #eeeeee;
    font-size: 1.4rem;
    text-align: center;
    margin-bottom: 1.6rem;
}
.company-name{
    font-weight: 600;
}
.footer-address {
    font-style: normal;
}
.footer-policy {
    text-align: center;
    margin-bottom: 2.6rem;
}
.privacy-policy-button {
    font-size: 1.6rem;
    font-weight: 600;
    background: linear-gradient(45deg, #4871e5, #00baba);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.footer-copyright {
    color: #cccccc;
    text-align: center;
    font-size: 1.4rem;
    line-height: 2rem;
}


/* Small: 480px ~ 767px (일반 스마트폰 가로 등) */
@media (min-width: 480px) {

}

/* Medium: 768px ~ 1023px (태블릿 세로/가로) */
@media (min-width: 768px) {
    .site-header .wrapper {
        padding: 1.6rem 4rem;
    }
    .has-sub .sub-toggle {
        font-size: 1.8rem;
        height: 4rem;
    }
    .toggle-icon {
        width: 1.6rem;
        height: 1.6rem;
    }
    .sub-menu li {
        font-size: 1.7rem;
        padding: 0.9rem 1.4rem;
    }
    .mobile-remote a {
        font-size: 1.6rem;
    }

    .site-footer .wrapper {
        padding: 4rem 4rem 4.2rem 4rem;
    }
    .footer-main {
        flex-direction: row;
        justify-content: space-between;
        margin-bottom: 1rem;
    }
    .footer-info-group {
        text-align: left;
    }
    .footer-policy {
        text-align: right;
        margin-bottom: 1.6rem;
    }
    .footer-copyright {
        text-align: right;
    }
}

/* Large: 1024px ~ 1279px (소형 데스크탑, 노트북) */
@media (min-width: 1024px) {
    .site-header {
        height: 8rem;
        background-color: transparent;
        transition: background-color 0.3s ease-in-out; /* ✅ 이게 핵심 */
    }
    .site-header.hovered,
    .site-header.scrolled {
        background-color: #ffffff;
        transition: background-color 0.1s ease-in-out;
    }
    /* 충돌 방지: hovered가 없고 scrolled도 없을 때만 투명 */
    .site-header:not(.scrolled):not(.hovered) {
        background-color: transparent;
    }
    .site-header .wrapper {
        height: 8rem;
        padding: 1.6rem 4rem;
    }
    .mobile-nav {
        display: none;
    }
    .mobile-header-btn {
        display: none;
    }
    .main-nav {
        display: block;
        background-color: transparent;
    }
    .main-nav .gnb {
        display: flex;
        align-items: center;
        color: #eeeeee;

    }
    .site-header.scrolled .main-nav .gnb,
    .site-header.hovered .main-nav .gnb{
        color: #333333;
    }
    .gnb-group-trigger {
        margin-right: 3rem;
    }
    .gnb-group {
        display: flex;
        align-items: center;
        height: 8rem; /* header와 동일하게 맞춰야 hover 가능 */
    }
    .gnb-group button {
        font-size: 1.6rem;
        font-weight: 600;
        width: 13rem;
    }
    .gnb-mega-dropdown {
        display: flex;
        justify-content: flex-end;
        position: absolute;
        top: 8rem; /* header 아래 */
        left: 0;
        width: 100%;
        /*background: #ffffff;*/
        background: linear-gradient(45deg, rgba(240, 245, 255, 0.9), rgb(239, 250, 250, 0.9));
        backdrop-filter: blur(10px); /* 실제 블러 처리 */
        -webkit-backdrop-filter: blur(10px); /* Safari 지원 */
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        padding: 0 4rem;
        z-index: 999;
        transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
    }
    /* 보여지는 상태 */
    .gnb-mega-dropdown.show {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
        transition: background-color 0.2s ease-in-out;
    }
    .dropdown-column {
        width: 13rem;
        font-size: 1.6rem;
        text-align: center;
        border-left: 1px solid #dddddd;
    }
    .dropdown-column ul li:first-child {
        margin-top: 1.6rem;
    }
    .dropdown-column ul li:last-child {
        margin-bottom: 2.4rem;
    }
    .dropdown-column ul li {
        height: 3.4rem;
        line-height: 3.4rem;
    }
    .dropdown-column ul li a {
        display: block;
        width: 100%;
        height: 100%;
        color: #9f9f9f;
        font-weight: 600;
    }
    .dropdown-column ul li:hover a {
        background: linear-gradient(45deg, #4871e5, #00baba);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .dropdown-inquiry {
        margin-right: 22rem;
        border-right: 1px solid #dddddd;
    }
    .pc-remote {
        margin-right: 2rem;
        margin-left: auto; /* ← 세 번째 자식을 오른쪽으로 밀어냄 */
    }
    .site-header .pc-remote a {
        display: block;
        text-align: center;
        font-weight: 500;
        border-radius: 100px;
        background: linear-gradient(45deg, #4871e5, #00baba);
        color: #ffffff;
        padding: 0.4rem 0;
        font-size: 1.3rem;
        width: 13rem;
    }
    .site-header.scrolled .pc-remote a {
        /* 스크롤되어도 유지 */
        display: block;
        text-align: center;
        font-weight: 500;
        border-radius: 100px;
        background: linear-gradient(45deg, #4871e5, #00baba);
        color: #ffffff;
        padding: 0.4rem 0;
        font-size: 1.3rem;
        width: 13rem;
        box-shadow: rgba(0, 0, 0, 0.07) 3px 3px 3px;
    }
    .pc-language-switcher {
        position: relative;
    }
    .pc-language-icon {
        position: relative;
        width: 4rem;
        height: 8rem;
    }
    .pc-language-icon .i-pc-language {
        position: absolute;
        top: 34px;
        left: 50%;
        transform: translateX(-50%);
        width: 2rem;
        height: 2rem;
    }
    .pc-language-dropdown {
        position: absolute;
        top: calc(100% - 6px);
        left: 50%;
        transform: translateX(-50%);
        background: white;
        padding: 1rem 1.75rem;
        border: 1px solid #eeeeee;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        border-radius: 0.8rem;
        z-index: 100;
        text-align: center;
        font-size: 1.5rem;
        height: 0;
        opacity: 0;
        overflow: hidden;
        transition: height 0.3s ease, opacity 0.3s ease;
    }
    .pc-language-switcher.active .pc-language-dropdown {
        height: auto; /* JS에서 정확한 높이 설정함 */
        opacity: 1;
        visibility: visible;
    }
    .pc-language-dropdown li {
        margin-bottom: 1rem;
        color: #333333;
        font-weight: 500;
    }
    .pc-language-dropdown li:last-child {
        margin-bottom: 0;
    }
    .pc-language-dropdown li:active,
    .pc-language-dropdown li.active,
    .pc-language-dropdown li:hover {
        font-weight: 600;
        background: linear-gradient(45deg, #4871e5, #00baba);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

}

/* Extra Large: 1280px 이상 (고해상도 데스크탑) */
@media (min-width: 1280px) {
    .site-header .wrapper {
        max-width: 1320px;
        margin: 0 auto;
        padding: 1.6rem 4rem;
    }
    .gnb-group-trigger {
        margin-right: 6rem;
    }
    .gnb-group button {
        font-size: 1.8rem;
        width: 18rem;
    }
    .site-header .pc-remote a {
        font-size: 1.4rem;
        width: 14rem;
        padding: 0.6rem 0;
    }
    .site-header.scrolled .pc-remote a {
        font-size: 1.4rem;
        width: 14rem;
        padding: 0.6rem 0;
    }
    .gnb-mega-dropdown {
        justify-content: center;
    }
    .dropdown-column {
        font-size: 1.7rem;
        width: 18rem;
    }
    .dropdown-inquiry {
        margin-right: -0.1rem;
    }

    .site-footer .wrapper {
        max-width: 1320px;
        margin: 0 auto;
    }


}