/* ============================================================
   AnK 세무회계 — 헤더 / 네비게이션
   이 파일만 수정하면 헤더 스타일이 바뀌며, 다른 섹션에는 영향을 주지 않습니다.
   ============================================================ */

.site-header {
  --header-bg: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  height: 40px;
  width: auto;
  display: block;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a:hover { color: var(--blue); text-decoration: none; }

.main-nav li.has-dropdown {
  position: relative;
}

.main-nav .dropdown-caret {
  font-size: 0.7em;
  margin-left: 4px;
  color: var(--text-muted);
}

.main-nav .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  margin: 0;
  padding: 8px 0;
  list-style: none;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 200;
}

.main-nav li.has-dropdown:hover .dropdown-menu,
.main-nav li.has-dropdown:focus-within .dropdown-menu {
  display: block;
}

.main-nav .dropdown-menu a {
  display: block;
  padding: 9px 16px;
  white-space: nowrap;
  font-weight: 500;
  font-size: 0.9rem;
}

.main-nav .dropdown-menu a:hover { background: var(--bg); }

.header-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}
.header-cta:hover { background: var(--blue); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--navy);
  cursor: pointer;
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }

  .main-nav.open {
    display: block;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
  }
  .main-nav.open ul { flex-direction: column; gap: 16px; }

  .main-nav .dropdown-menu {
    display: block;
    position: static;
    margin: 10px 0 0;
    padding: 0;
    border: none;
    box-shadow: none;
    background: transparent;
  }
  .main-nav .dropdown-menu li + li { margin-top: 10px; }
  .main-nav .dropdown-menu a {
    padding: 0;
    padding-left: 14px;
    color: var(--text-muted);
    font-size: 0.88rem;
  }
  .main-nav .dropdown-caret { display: none; }
}