/* 이 파일은 손으로 고치지 않는다 — tools/build-site-nav.js 가 만든다.
 *
 * 첫 화면의 상단 메뉴를 다른 장에도 그대로 쓰기 위한 모양표다.
 * site2026/styles.css 를 통째로 붙이면 그 장의 글꼴·여백·색까지 전부 덮어쓴다.
 * 그래서 머리말에 쓰이는 규칙만 뽑아 왔다. 요소 이름만 쓴 규칙은 한 줄도 없다.
 *
 * styles.css 의 머리말 부분을 고쳤으면 이걸 다시 돌린다:
 *   node tools/build-site-nav.js
 */

.site-header {
  --ink: #171712;
  --muted: #696b62;
  --olive: #7C8266;
  --rose: #E7C8C4;
  --rose-strong: #8C5A52;
  --fog: #f7f7f3;
  --focus: #be185d;
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui,
    "Apple SD Gothic Neo", "Segoe UI", "Malgun Gothic", sans-serif;
  line-height: 1.55;
}
/* 옛 장들은 링크에 밑줄이 걸려 있다. 머리말 안에서만 그것을 끈다.
 * color 는 여기서 잡지 않는다 — '.site-header a' 는 점수가 (0,1,1) 이라
 * 아래에서 뽑아 온 '.dropdown-item { color: var(--ink) }' (0,1,0) 를 이긴다.
 * 그러면 검정 머리말의 흰 글자가 흰 펼침판에 그대로 흘러 글씨가 안 보인다.
 * 머리말 안 링크는 아래 규칙들이 저마다 색을 이미 지정한다. */
.site-header a, .site-header summary { text-decoration: none; -webkit-tap-highlight-color: transparent; }
.site-header img { display: block; }
.site-header *, .site-header *::before, .site-header *::after { box-sizing: border-box; }

.skip { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 10px 14px; background: var(--ink); color: #fff; transform: translateY(-180%); }
.skip:focus { transform: translateY(0); }
.site-header { position: sticky; z-index: 50; top: 0; background: rgba(255,255,255,.94); backdrop-filter: blur(18px); box-shadow: 0 1px 0 rgba(23,23,18,.08); transition: background-color .24s ease, color .24s ease, box-shadow .24s ease; }
body[data-page="home"] .site-header { background: rgba(255,255,255,.96); color: var(--ink); box-shadow: 0 1px 0 rgba(6,78,59,.18); }
body[data-page="home"] .nav-dropdown summary span, body[data-page="home"] .nav-account { color: var(--muted); }
body[data-page="home"] .nav-dropdown[open] summary, body[data-page="home"] .nav-dropdown summary:hover, body[data-page="home"] .nav-dropdown summary[aria-current="page"] { background: transparent; color: var(--ink); }
body[data-page="home"] .nav-direct:hover, body[data-page="home"] .nav-direct[aria-current="page"], body[data-page="home"] .nav-account a:hover { color: var(--rose-strong); }
body[data-page="home"] .site-header[data-surface="olive"] { background: var(--olive); color: var(--ink); box-shadow: 0 1px 0 rgba(23,23,18,.18); }
body[data-page="home"] .site-header[data-surface="rose"] { background: var(--rose); color: var(--ink); box-shadow: 0 1px 0 rgba(23,23,18,.18); }
body[data-page="home"] .site-header[data-surface="olive"] .nav-dropdown summary span, body[data-page="home"] .site-header[data-surface="olive"] .nav-account { color: var(--ink); }
body[data-page="home"] .site-header[data-surface="rose"] .nav-dropdown summary span, body[data-page="home"] .site-header[data-surface="rose"] .nav-account { color: var(--ink); }
body[data-page="home"] .site-header[data-surface="olive"] .nav-dropdown[open] summary, body[data-page="home"] .site-header[data-surface="olive"] .nav-dropdown summary:hover, body[data-page="home"] .site-header[data-surface="olive"] .nav-dropdown summary[aria-current="page"] { background: transparent; color: var(--ink); }
body[data-page="home"] .site-header[data-surface="rose"] .nav-dropdown[open] summary, body[data-page="home"] .site-header[data-surface="rose"] .nav-dropdown summary:hover, body[data-page="home"] .site-header[data-surface="rose"] .nav-dropdown summary[aria-current="page"] { background: transparent; color: var(--ink); }
body[data-page="home"] .site-header[data-surface="olive"] .nav-direct:hover, body[data-page="home"] .site-header[data-surface="olive"] .nav-direct[aria-current="page"], body[data-page="home"] .site-header[data-surface="olive"] .nav-account a:hover { color: var(--ink); }
body[data-page="home"] .site-header[data-surface="rose"] .nav-direct:hover, body[data-page="home"] .site-header[data-surface="rose"] .nav-direct[aria-current="page"], body[data-page="home"] .site-header[data-surface="rose"] .nav-account a:hover { color: var(--ink); }
body[data-page="home"] .site-header[data-surface] .dropdown-panel { color: var(--ink); }
.nav-shell { max-width: 1420px; margin: auto; min-height: 78px; padding: 0 24px; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 850; letter-spacing: -.04em; white-space: nowrap; }
.brand img { width: 40px; height: 40px; }
.nav-links { display: flex; align-items: stretch; align-self: stretch; flex: 1; font-size: 14px; font-weight: 680; }
.nav-burger { display: none; }
.nav-dropdown { position: relative; display: flex; align-items: center; }
.nav-dropdown summary { display: flex; min-height: 42px; align-items: center; gap: 8px; margin: 0 4px; padding: 0 13px; border-radius: 5px; cursor: pointer; list-style: none; white-space: nowrap; }
.nav-dropdown summary::-webkit-details-marker { display: none; }
.nav-dropdown summary span { color: var(--muted); font-size: 12px; transition: transform .18s ease; }
.nav-dropdown[open] summary { background: transparent; }
.nav-dropdown[open] summary, .nav-dropdown summary:hover, .nav-dropdown summary[aria-current="page"] { color: var(--ink); }
.nav-dropdown[open] summary span { transform: rotate(180deg); }
.dropdown-panel { position: absolute; top: calc(100% - 1px); left: 4px; width: 330px; padding: 6px; border-radius: 8px; background: rgba(255,255,255,.98); box-shadow: 0 24px 70px rgba(37,39,26,.18), 0 0 0 1px rgba(23,23,18,.08); }
.dropdown-item { display: grid; grid-template-columns: 34px minmax(0, 1fr) 36px; align-items: center; gap: 10px; min-height: 68px; padding: 10px 10px 10px 12px; border-radius: 8px; transition: background .18s ease, color .18s ease; }
.dropdown-item + .dropdown-item { box-shadow: inset 0 1px 0 rgba(23,23,18,.08); }
.dropdown-item:hover, .dropdown-item:focus-visible, .dropdown-item.is-featured { background: var(--fog); }
.dropdown-item strong, .dropdown-item small { display: block; }
.dropdown-item strong { font-size: 15px; }
.dropdown-item small { margin-top: 2px; color: #66685f; font-size: 11px; font-weight: 520; }
.menu-icon { display: grid; width: 24px; height: 24px; place-items: center; color: #85877f; font-size: 21px; font-weight: 500; line-height: 1; }
.menu-icon::before { display: block; }
.dropdown-item b { display: grid; width: 34px; height: 34px; place-items: center; border-radius: 8px; background: #fff; color: var(--ink); font-size: 18px; font-weight: 500; box-shadow: 0 0 0 1px rgba(23,23,18,.12); }
.nav-direct { display: flex; min-height: 78px; align-items: center; padding: 0 15px; white-space: nowrap; }
.nav-direct:hover, .nav-direct[aria-current="page"] { color: var(--ink); }
.nav-account { display: flex; align-items: center; gap: 12px; padding-left: 12px; color: var(--muted); font-size: 12px; font-weight: 650; white-space: nowrap; }
.nav-account a:hover { color: var(--rose-strong); }
@media (max-width: 820px) {
  .site-header, body[data-page="home"] .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav-shell { min-height: 64px; padding: 0 16px; gap: 6px; }
  .site-header .nav-shell .nav-links { order: 1; }
  .site-header .nav-shell .nav-direct { order: 2; }
  .site-header .nav-shell .auth-admin-menu { order: 3; margin: 0; }
  .site-header .nav-shell .nav-account { order: 4; }
  .site-header .nav-shell .nav-burger { order: 9; }
  .nav-shell .auth-admin-menu__trigger { padding: 0; gap: 0; }
  .nav-shell .auth-admin-menu__trigger::after { display: none; }
  .brand img { width: 34px; height: 34px; }
  .nav-optional { display: none; }
  .nav-account a[href="/Classroom"] { display: none; }
  .nav-direct { min-height: 44px; margin-left: auto; padding: 0 4px; }
  .nav-shell:not(:has(.member-menu:not([hidden]))) .nav-direct { display: none; }
  .nav-account { display: flex; gap: 10px; padding-left: 0; font-size: 13px; font-weight: 700; white-space: nowrap; }
  .nav-shell:not(:has(.member-menu:not([hidden]))) .nav-account { margin-left: auto; }
  .site-header .nav-shell .nav-account .account-chip, .site-header .nav-shell .nav-account a { color: #fff; }
  .nav-account .member-menu .account-chip { min-height: 44px; padding: 0 4px; font-size: 13px; font-weight: 700; }
  .nav-shell .auth-admin-menu { margin-right: 0; }
  .nav-burger { display: inline-flex; flex: 0 0 auto; flex-direction: column; justify-content: center; gap: 5px; width: 40px; height: 36px; padding: 0 10px; border: 1px solid rgba(255,255,255,.28); border-radius: 6px; background: transparent; cursor: pointer; }
  .nav-burger span { display: block; height: 2px; background: #fff; border-radius: 1px; transition: transform .3s cubic-bezier(.4,0,.2,1); }
  .site-header.is-menu-open .nav-burger span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .site-header.is-menu-open .nav-burger span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .nav-links { display: none; }
  .site-header.is-menu-open .nav-links { display: flex; position: fixed; top: 64px; right: 0; bottom: 0; left: 0; z-index: 140; flex-direction: column; align-items: stretch; overflow-y: auto; padding: 0 20px 40px; background: #fff; color: var(--ink); font-size: 28px; font-weight: 800; letter-spacing: -0.02em; }
  .site-header.is-menu-open .nav-shell .nav-dropdown { display: block; width: 100%; margin: 0; border-bottom: 1px solid rgba(23,23,18,.10); }
  .site-header.is-menu-open .nav-shell .nav-dropdown summary, .site-header.is-menu-open .nav-shell .nav-dropdown[open] summary { display: flex; align-items: center; justify-content: space-between; min-height: 72px; margin: 0; padding: 0; color: var(--ink); background: transparent; }
  .site-header.is-menu-open .nav-shell .nav-dropdown summary > span { color: var(--ink); font-size: 18px; }
  .site-header.is-menu-open .dropdown-panel { position: static; width: auto; max-height: none; margin: 0 0 12px; padding: 0; border: 0; box-shadow: none; background: transparent; }
  .site-header .nav-shell .nav-account .member-dropdown { position: fixed; top: 64px; right: 12px; left: auto; min-width: 200px; }
  .site-header .nav-shell .auth-admin-menu .auth-admin-menu__dropdown { position: fixed; top: 64px; right: 12px; left: auto; min-width: 200px; }
}
@media (max-width: 430px) {
  .brand img { width: 26px; }
}
.site-header, body[data-page="home"] .site-header { background: var(--ink); color: #fff; box-shadow: none; }
.brand, .nav-dropdown summary span, .nav-direct, .nav-account, body[data-page="home"] .brand, body[data-page="home"] .nav-dropdown summary span, body[data-page="home"] .nav-direct, body[data-page="home"] .nav-account { color: #fff; }
.nav-account a, body[data-page="home"] .nav-account a { color: rgba(255,255,255,.72); }
.nav-account a:hover, body[data-page="home"] .nav-account a:hover { color: #fff; }
.nav-dropdown[open] summary, .nav-dropdown summary:hover, .nav-dropdown summary[aria-current="page"], .nav-direct:hover, .nav-direct[aria-current="page"], body[data-page="home"] .nav-dropdown[open] summary, body[data-page="home"] .nav-dropdown summary:hover, body[data-page="home"] .nav-direct:hover, body[data-page="home"] .nav-direct[aria-current="page"] { color: #fff; background: transparent; }
.nav-dropdown summary .caret { color: rgba(255,255,255,.7); }
.nav-dropdown summary, .nav-dropdown summary span, body[data-page="home"] .nav-dropdown summary { color: #fff; }
.dropdown-item, .dropdown-item h3, .dropdown-item p { color: var(--ink); }
body[data-page="home"] .site-header[data-surface], body[data-page="home"] .site-header[data-surface="olive"], body[data-page="home"] .site-header[data-surface="rose"] { background: var(--ink); color: #fff; box-shadow: none; }
body[data-page="home"] .site-header[data-surface] .brand, body[data-page="home"] .site-header[data-surface] .nav-dropdown summary, body[data-page="home"] .site-header[data-surface] .nav-dropdown summary span, body[data-page="home"] .site-header[data-surface] .nav-direct, body[data-page="home"] .site-header[data-surface] .nav-account { color: #fff; }
body[data-page="home"] .site-header[data-surface] .nav-account a { color: rgba(255,255,255,.72); }
.brand img { width: 40px; height: 40px; border: 1px solid rgba(255,255,255,.3); border-radius: 0; background: transparent; object-fit: contain; }
.nav-account .member-menu { position: relative; display: inline-flex; align-items: center; }
.nav-account .member-menu[hidden] { display: none !important; }
.nav-account .account-chip { display: inline-flex; min-height: 78px; align-items: center; gap: 8px; padding: 0 15px; border: 0; border-radius: 0; background: transparent; color: #fff; font: inherit; font-size: 14px; font-weight: 680; white-space: nowrap; cursor: pointer; }
.nav-account .account-chip:hover { background: transparent; color: var(--rose); }
.site-header .account-chip::before { content: none; display: none; }
.nav-account .member-dropdown { position: absolute; top: calc(100% + 10px); right: 0; z-index: 130; display: none; min-width: 176px; padding: 8px; border-radius: 12px; background: #fff; box-shadow: 0 16px 40px rgba(23,23,18,.22); }
.nav-account .member-menu.is-open .member-dropdown { display: block; }
.nav-account .member-dropdown a, .nav-account .member-dropdown button { display: block; width: 100%; padding: 9px 12px; border: 0; border-radius: 8px; background: transparent; color: var(--ink); font: inherit; font-size: 13px; font-weight: 600; text-align: left; white-space: nowrap; cursor: pointer; }
.nav-account .member-dropdown a:hover, .nav-account .member-dropdown button:hover { background: var(--fog); }
.nav-shell .auth-admin-menu__trigger { width: auto; padding: 0 10px; color: #fff; font-size: 13px; }
.nav-links .nav-dropdown:last-of-type { margin-right: auto; }
.nav-shell .auth-admin-menu { order: 1; display: inline-flex; align-items: center; align-self: stretch; margin-right: 18px; }
.nav-shell .nav-direct { order: 2; }
.nav-shell .nav-account { order: 3; }
.nav-shell .auth-admin-menu__trigger { width: auto; padding: 0; color: #fff; font-size: 13px; }
.nav-shell .nav-direct { display: none; }
.nav-shell:has(.member-menu:not([hidden])) .nav-direct { display: inline-flex; }
.site-header .nav-account .member-dropdown a, .site-header .nav-account .member-dropdown button { color: var(--ink); }
.site-header .nav-account .member-dropdown a:hover, .site-header .nav-account .member-dropdown button:hover { color: var(--ink); background: var(--fog); }
.nav-shell .auth-admin-menu .auth-admin-menu__dropdown { top: calc(100% - 1px); left: 0; right: auto; min-width: 176px; padding: 6px; border-radius: 8px; background: rgba(255,255,255,.98); box-shadow: 0 16px 40px rgba(23,23,18,.22); }
.nav-shell .auth-admin-menu .auth-admin-menu__dropdown a { color: var(--ink); font-size: 13px; font-weight: 600; }
.nav-shell .auth-admin-menu .auth-admin-menu__dropdown a:hover { background: var(--fog); }
.nav-account { visibility: hidden; animation: hf-auth-reveal 0s linear 2.5s forwards; }
html.hueflow-auth-ready .nav-account { visibility: visible; animation: none; }
.site-header .brand, .site-header a[aria-label], .nav-shell > a:first-child { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
.nav-direct, .nav-account, .nav-account a, .nav-shell .auth-admin-menu__trigger, .nav-account .member-menu .account-chip { font-size: 14px; font-weight: 680; letter-spacing: 0; }