/* ±âº» ¸®¼Â º¸Á¤ */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: #111;
    background: #fff;
    font-family: "Pretendard", "Noto Sans KR", sans-serif;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, li {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Á¢±Ù¼º */
#skip_to_container {
    position: absolute;
    left: 0;
    top: -100px;
    z-index: 2000;
}

#skip_to_container a {
    display: inline-block;
    padding: 12px 18px;
    background: #111;
    color: #fff;
    border-radius: 8px;
}

#skip_to_container a:focus {
    top: 20px;
    position: relative;
}

/* header */
.site-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1200;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(17, 17, 17, 0.06);
}

#hd_h1 {
    position: absolute;
    left: -9999px;
    top: -9999px;
    font-size: 0;
    line-height: 0;
    overflow: hidden;
}

.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    height: 88px;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.site-logo {
    flex: 0 0 auto;
}

.site-logo img {
    max-height: 28px;
    width: auto;
}

/* navigation */
.site-nav {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
}

.gnb-list {
    display: flex;
    align-items: center;
    gap: 36px;
}

.gnb_1dli {
    position: relative;
}

.gnb_1da {
    display: inline-flex;
    align-items: center;
    height: 88px;
    font-size: 15px;
    font-weight: 600;
    color: #111;
    transition: color 0.25s ease, opacity 0.25s ease;
}

.gnb_1da:hover {
    opacity: 0.65;
}

.gnb_2dul {
    position: absolute;
    top: calc(100% - 14px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    padding-top: 14px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
}

.gnb_2dul_box {
    padding: 14px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(17, 17, 17, 0.06);
    border-radius: 20px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
}

.gnb_2dli + .gnb_2dli {
    margin-top: 4px;
}

.gnb_2da {
    display: block;
    padding: 10px 12px;
    font-size: 14px;
    color: #444;
    border-radius: 12px;
    transition: background 0.2s ease, color 0.2s ease;
}

.gnb_2da:hover {
    background: #f5f7fa;
    color: #111;
}

.gnb_1dli:hover .gnb_2dul {
    opacity: 1;
    visibility: visible;
    top: calc(100% - 4px);
}

/* header actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 0 0 auto;
}

.member-links {
    display: flex;
    align-items: center;
    gap: 14px;
}

.member-links a {
    font-size: 13px;
    color: #666;
    transition: opacity 0.2s ease;
}

.member-links a:hover {
    opacity: 0.65;
}

.header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 20px;
    background: #111;
    color: #fff;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.header-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(17, 17, 17, 0.14);
}

.gnb_menu_btn {
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: #f4f6f8;
    color: #111;
    font-size: 18px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease;
}

.gnb_menu_btn:hover {
    background: #eceff3;
}

/* mobile full menu */
#gnb_all_bg {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(17, 17, 17, 0.46);
    z-index: 1290;
}

#gnb_all {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: min(92vw, 420px);
    height: 100vh;
    background: #fff;
    z-index: 1300;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.16);
}

.gnb_all_inner {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 24px;
    overflow-y: auto;
}

.gnb_all_head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.gnb_all_head strong {
    font-size: 22px;
    font-weight: 700;
    color: #111;
}

.gnb_close_btn {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: #f4f6f8;
    color: #111;
    font-size: 18px;
    cursor: pointer;
}

.gnb_al_li {
    padding: 18px 0;
    border-bottom: 1px solid #f0f2f4;
}

.gnb_al_a {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: #111;
}

.gnb_al_li ul {
    margin-top: 12px;
}

.gnb_al_li ul li + li {
    margin-top: 8px;
}

.gnb_al_li ul a {
    display: block;
    font-size: 14px;
    color: #666;
}

.gnb_all_util {
    margin-top: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 28px;
}

.gnb_all_util a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 16px;
    border: 1px solid #e6e9ec;
    border-radius: 999px;
    font-size: 13px;
    color: #333;
}

/* main visual */
.main-visual {
    position: relative;
    min-height: calc(100vh - 88px);
    display: flex;
    align-items: center;
    overflow: hidden;
    background:
        radial-gradient(circle at 20% 20%, rgba(210, 224, 255, 0.6), transparent 32%),
        radial-gradient(circle at 80% 30%, rgba(228, 236, 255, 0.75), transparent 28%),
        linear-gradient(180deg, #f9fbff 0%, #ffffff 100%);
}

.main-visual__bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0)),
        url("../img/main-visual-texture.png") center center / cover no-repeat;
    opacity: 0.25;
    pointer-events: none;
}

.main-visual__inner {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 100px 32px 120px;
}

.main-visual__eyebrow {
    margin: 0 0 18px;
    font-size: 13px;
    font-weight: 700;
    color: #6c7a89;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.main-visual__title {
    margin: 0;
    max-width: 860px;
    font-size: clamp(42px, 6vw, 84px);
    line-height: 1.04;
    font-weight: 800;
    color: #111;
}

.main-visual__desc {
    margin: 26px 0 0;
    max-width: 620px;
    font-size: 18px;
    line-height: 1.8;
    color: #5a6573;
}

.main-visual__actions {
    margin-top: 38px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    min-height: 54px;
    padding: 0 24px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    transition: all 0.25s ease;
}

.btn-primary {
    background: #111;
    color: #fff;
    box-shadow: 0 12px 28px rgba(17, 17, 17, 0.14);
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.72);
    color: #111;
    border: 1px solid rgba(17, 17, 17, 0.08);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: #fff;
    transform: translateY(-2px);
}

/* container */
#wrapper {
    position: relative;
}

#container_wr {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 32px 100px;
}

#container {
    min-height: 500px;
}

#container_title {
    margin: 56px 0 32px;
    font-size: 34px;
    line-height: 1.3;
    font-weight: 800;
    color: #111;
}

#container_title span {
    display: inline-block;
}

/* empty */
.gnb_empty {
    color: #777;
    font-size: 14px;
}

/* responsive */
@media (max-width: 1280px) {
    .gnb-list {
        gap: 24px;
    }

    .member-links {
        display: none;
    }
}

@media (max-width: 1024px) {
    .site-nav {
        display: none;
    }

    .gnb_menu_btn {
        display: inline-flex;
    }

    .header-inner {
        height: 80px;
        padding: 0 20px;
    }

    .site-logo img {
        max-height: 24px;
    }

    .main-visual {
        min-height: calc(100vh - 80px);
    }

    .main-visual__inner {
        padding: 72px 20px 84px;
    }

    #container_wr {
        padding: 0 20px 80px;
    }

    #container_title {
        margin-top: 42px;
        font-size: 28px;
    }
}

@media (max-width: 640px) {
    .header-cta {
        display: none;
    }

    .main-visual__eyebrow {
        font-size: 12px;
    }

    .main-visual__desc {
        font-size: 15px;
        line-height: 1.7;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        min-width: auto;
    }
}