@charset "UTF-8";

.hd_container {
    width:100%;
    max-width:1840px;
    margin-right:auto;
    margin-left:auto;
    padding-right:32px;
    padding-left:32px;
}

.btn {
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:1.4rem;
    font-weight:700;
    border-radius:8px;
    cursor:pointer;
    transition:var(--transition_fast);
}
.btn_primary {
    padding:10px 16px;
    color:#ffffff;
    background:linear-gradient(to right, var(--color_emerald_dark), var(--color_green));
    box-shadow:0 4px 6px -1px rgba(16, 185, 129, 0.1);
}
.btn_primary:hover {
    box-shadow:0 10px 15px -3px rgba(16, 185, 129, 0.2);
    transform:translateY(-1px);
}

.main_header {
    position:sticky;
    top:0;
    background-color:rgba(255, 255, 255, 0.95);
    border-bottom:1px solid var(--color_border_light);
    box-shadow:0 1px 2px 0 rgba(0, 0, 0, 0.05);
    backdrop-filter:blur(8px);
    z-index:50;
}
.header_wrapper {
    display:flex;
    align-items:center;
    justify-content:space-between;
    position:relative;
    height:80px;
}
.header_gnb_mount {
    display:flex;
    align-items:center;
    justify-content:center;
    position:absolute;
    top:0;
    right:0;
    bottom:0;
    left:0;
    height:80px;
    pointer-events:none;
    z-index:101;
}
.header_logo_group {
    display:flex;
    align-items:center;
    gap:12px;
    position:relative;
    z-index:102;
}
.header_logo_icon {
    display:flex;
    align-items:center;
    justify-content:center;
    width:40px;
    height:40px;
    color:#ffffff;
    background:linear-gradient(to top right, var(--color_green), var(--color_emerald_dark));
    border-radius:8px;
    box-shadow:0 4px 6px -1px rgba(16, 185, 129, 0.2);
}
.header_logo_icon i {
    font-size:2.0rem;
    transition:var(--transition_fast);
}
.header_logo_group:hover .header_logo_icon i {
    transform:scale(1.1);
}
.header_logo_title {
    font-size:3.0rem;
    font-weight:800;
    line-height:1;
    color:#111827;
    letter-spacing:-0.025em;
    background:linear-gradient(to right, var(--color_emerald_dark), var(--color_green));
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}
.header_logo_subtitle {
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    margin-top:4px;
    font-size:1.4rem;
    font-weight:500;
    line-height:1;
    color:var(--color_text_light);
    letter-spacing:0.025em;
}
@media (max-width:1700px) {
    .header_logo_subtitle {
        display:none;
    }
}
.header_logo_text_wrap {
    display:flex;
    justify-content:center;
    align-items:center;
    gap:10px;
}

.mobile_menu_backdrop, .mobile_nav_header {
    display:none;
}

.gnb_nav {
    display:flex;
    align-items:center;
    justify-content:space-between;
    position:absolute;
    top:0;
    left:50%;
    width:calc(100% - 580px);
    max-width:1000px;
    height:80px;
    transform:translateX(-50%);
    pointer-events:none;
    z-index:1;
}

.gnb_nav .gnb_item,
.gnb_nav .gnb_link,
.gnb_nav .gnb_dropdown,
.gnb_nav .gnb_dropdown_link,
.gnb_nav .mobile_nav_header,
.gnb_nav .mobile_nav_close {
    pointer-events:auto;
}

.gnb_item {
    display:flex;
    align-items:center;
    position:relative;
    height:100%;
}

.gnb_link {
    display:inline-flex;
    align-items:center;
    position:relative;
    height:100%;
    padding:0 16px;
    font-size:1.6rem;
    font-weight:700;
    color:var(--color_text_muted);
    border-radius:8px;
    transition:var(--transition_fast);
    z-index:101;
}
.gnb_link::after {
    position:absolute;
    bottom:0;
    left:16px;
    right:16px;
    height:3px;
    content:'';
    background-color:var(--color_green);
    transform:scaleX(0);
    transition:transform 0.2s ease;
}

.gnb_nav .mo_toggle_icon {
    display:none;
}

.mega_menu_bg {
    position:absolute;
    top:80px;
    left:0;
    right:0;
    height:220px;
    background-color:#ffffff;
    border-bottom:1px solid var(--color_border_light);
    border-bottom-left-radius:24px;
    border-bottom-right-radius:24px;
    box-shadow:0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity 0.1s ease, transform 0.1s ease, visibility 0.1s ease;
    pointer-events:none;
    z-index:99;
}

.main_header.mega_menu_active .mega_menu_bg {
    opacity:1;
    visibility:visible;
    transform:translateY(0);
    pointer-events:auto;
}

@media (min-width:1201px) {

    .gnb_nav.mega_menu_active .gnb_link {
        color:#111827;
    }

    .gnb_nav.mega_menu_active .gnb_item:hover .gnb_link,
    .gnb_item:hover .gnb_link {
        color:var(--color_green);
    }

    .gnb_nav.mega_menu_active .gnb_item:hover .gnb_link::after,
    .gnb_item:hover .gnb_link::after {
        transform:scaleX(1);
    }

    .gnb_nav.mega_menu_active .gnb_dropdown {
        opacity:1;
        visibility:visible;
        pointer-events:auto;
    }

    .gnb_nav .mo_toggle_icon {
        display:none;
    }

}

.gnb_dropdown {
    display:flex;
    flex-direction:column;
    gap:8px;
    position:absolute;
    top:100%;
    left:16px;
    min-width:160px;
    padding:24px 0;
    opacity:0;
    visibility:hidden;
    transition:opacity 0.1s ease, visibility 0.1s ease;
    pointer-events:none;
    z-index:100;
}

.gnb_dropdown_link {
    display:block;
    padding:6px 0;
    font-size:1.4rem;
    font-weight:500;
    color:var(--color_text_muted);
    text-align:left;
    white-space:nowrap;
    border-radius:8px;
    transition:var(--transition_fast);
}
.gnb_dropdown_link:hover {
    font-weight:700;
    color:var(--color_green);
}

.header_utilities {
    display:flex;
    align-items:center;
    gap:12px;
    position:relative;
    z-index:102;
}
.header_mega_btn {
    display:flex;
    align-items:center;
    justify-content:center;
    width:44px;
    height:44px;
    padding:8px;
    font-size:2.4rem;
    color:var(--color_text_muted);
    background-color:transparent;
    border:1px solid transparent;
    border-radius:8px;
    transition:var(--transition_fast);
}
.header_mega_btn:hover {
    color:#111827;
    background-color:var(--color_light_bg);
}

.main_footer {
    padding-top:48px;
    padding-bottom:48px;
    color:#94a3b8;
    background-color:#0f172a;
    border-top:1px solid #1e293b;
}
.footer_grid {
    display:flex;
    flex-direction:row;
    justify-content:flex-start;
    align-items:flex-start;
    gap:40px;
    width:100%;
}
.footer_branding {
    display:flex;
    flex-direction:column;
    flex-shrink:0;
    gap:16px;
}
.footer_logo_row {
    display:flex;
    align-items:center;
    gap:12px;
}
.footer_logo_box {
    display:flex;
    align-items:center;
    justify-content:center;
    width:32px;
    height:32px;
    color:#ffffff;
    background-color:var(--color_green);
    border-radius:8px;
}
.footer_logo_text {
    font-weight:800;
    color:#ffffff;
    letter-spacing:-0.025em;
}
.footer_desc {
    font-size:1.4rem;
    line-height:1.625;
    color:#64748b;
}
.footer_info_address {
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
    width:auto;
    max-width:100%;
    font-size:1.4rem;
    text-align:left;
}
.footer_org_name {
    font-size:1.8rem;
    font-weight:600;
    color:#f1f5f9;
}
.footer_address_detail {
    line-height:1.625;
}
.footer_contact_row {
    line-height:1.5;
}
.footer_contact_row a {
    color:#10b981;
    text-decoration:underline;
}
.footer_copyright {
    font-size:1.3rem;
    line-height:1.5;
    color:#64748b;
}
.btn_totop {
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:2px;
    position:fixed;
    right:40px;
    bottom:40px;
    width:60px;
    height:60px;
    padding:0;
    line-height:1;
    font-size:1.4rem;
    color:#ffffff;
    background-image:linear-gradient(to right, var(--color_emerald_dark), var(--color_green));
    border:none;
    border-radius:50%;
    box-shadow:0 4px 10px rgba(0,0,0,0.15);
    opacity:0;
    visibility:hidden;
    cursor:pointer;
    transition:opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    pointer-events:none;
    z-index:1000;
}

.btn_totop i {
    line-height:1;
    font-size:1.6rem;
    color:#ffffff;
}

.btn_totop_text {
    line-height:1;
    font-size:1.3rem;
    font-weight:700;
    color:#ffffff;
}

.btn_totop.is_visible {
    opacity:1;
    visibility:visible;
    pointer-events:auto;
}

body.mobile_menu_active .btn_totop,
body.mobile_menu_active .btn_totop.is_visible {
    opacity:0;
    visibility:hidden;
    pointer-events:none;
}

.btn_totop:hover {
    box-shadow:0 10px 15px -3px rgba(16, 185, 129, 0.2);
    transform:translateY(-2px);
}

/* ==================== Responsive (Desktop First) ==================== */

@media (max-width:1620px) {

    .header_utilities .btn_primary {
        padding:10px 8px;
    }

    .header_utilities .btn_primary .fa-paper-plane {
        display:none;
    }
}

@media (max-width:1200px) {

    .main_header.mega_menu_active {
        backdrop-filter:none;
    }

    .header_utilities .btn_primary {
        display:none;
    }

    .mobile_menu_backdrop {
        display:block;
        position:fixed;
        top:0;
        right:0;
        bottom:0;
        left:0;
        background-color:rgba(0, 0, 0, 0.75);
        opacity:0;
        visibility:hidden;
        transition:var(--transition_fast);
        z-index:990;
    }

    body.mobile_menu_active .mobile_menu_backdrop {
        opacity:1;
        visibility:visible;
    }

    .mobile_nav_header {
        display:flex;
        align-items:center;
        justify-content:space-between;
        flex-shrink:0;
        width:100%;
        padding:16px 20px;
        background-color:#ffffff;
        border-bottom:2px solid var(--color_border);
    }

    .mobile_nav_title {
        font-size:1.8rem;
        font-weight:800;
        color:#111827;
    }

    .mobile_nav_close {
        font-size:2.4rem;
        color:#4b5563;
        transition:var(--transition_fast);
    }

    .mobile_nav_close:hover {
        color:#111827;
    }

    .gnb_nav {
        display:flex;
        flex-direction:column;
        justify-content:flex-start;
        position:fixed;
        top:0;
        right:-100%;
        left:auto;
        width:100%;
        max-width:360px;
        height:100vh;
        padding:0;
        background-color:#ffffff;
        box-shadow:-5px 0 25px rgba(0,0,0,0.1);
        overflow-y:auto;
        transform:none;
        transition:right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index:1000;
    }

    body.mobile_menu_active .gnb_nav {
        right:0;
        pointer-events:auto;
    }

    .gnb_item {
        flex-direction:column;
        align-items:flex-start;
        width:100%;
        height:auto;
        border-bottom:1px solid var(--color_border);
    }

    .gnb_link {
        justify-content:space-between;
        width:100%;
        height:auto;
        padding:16px 20px;
        font-size:1.8rem;
        color:#111827;
        border-radius:0;
    }

    .gnb_link::after {
        content:none;
    }

    .gnb_item.mobile_open .gnb_link {
        color:var(--color_green);
        background-color:#f8fafc;
    }

    .gnb_nav .mo_toggle_icon {
        display:flex;
        align-items:center;
        justify-content:center;
        flex-shrink:0;
        margin-left:12px;
        line-height:1;
        font-size:1.4rem;
        color:#9ca3af;
        transition:transform 0.3s ease;
    }

    .gnb_item.mobile_open .mo_toggle_icon {
        color:var(--color_green);
        transform:rotate(90deg);
    }

    .mega_menu_bg {
        display:none !important;
    }

    .gnb_dropdown {
        display:flex;
        flex-direction:column;
        position:static;
        top:auto;
        left:auto;
        min-width:0;
        width:100%;
        max-height:0;
        padding:0;
        background-color:#f8fafc;
        opacity:0;
        visibility:hidden;
        overflow:hidden;
        transform:none;
        transition:max-height 0.4s ease, opacity 0.3s ease, visibility 0.4s ease;
        pointer-events:none;
    }

    .gnb_item.mobile_open .gnb_dropdown {
        max-height:500px;
        opacity:1;
        visibility:visible;
        border-top:1px solid var(--color_border_light);
        pointer-events:auto;
    }

    .gnb_dropdown_link {
        padding:14px 20px 14px 32px;
        font-size:1.5rem;
        color:#4b5563;
        border-bottom:1px solid var(--color_border_light);
        border-radius:0;
    }

    .gnb_dropdown_link:last-child {
        border-bottom:none;
    }

}

@media (max-width:1023px) {

    .hd_container {
        padding-right:24px;
        padding-left:24px;
    }

}

@media (max-width:768px) {

    .gnb_nav {
        max-width:100%;
    }

}

@media (max-width:767px) {

    .footer_grid {
        flex-direction:column;
        gap:24px;
    }

    .footer_branding {
        flex-shrink:1;
    }

    .footer_info_address {
        width:100%;
        gap:10px;
        font-size:1.3rem;
    }

    .footer_org_name {
        font-size:1.6rem;
    }

    .footer_contact_row {
        display:flex;
        flex-direction:column;
        align-items:flex-start;
        gap:4px;
    }

}

@media (max-width:639px) {

    .hd_container {
        padding-right:16px;
        padding-left:16px;
    }

    .btn_totop {
        right:16px;
        bottom:20px;
    }

}