/* ============================================================
   LEADERS MARKETING GROUP — header.css
   ============================================================ */

#site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 1000;
  background: transparent;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
#site-header.is-scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
  backdrop-filter: blur(12px);
}

/* 스크롤 전 텍스트 흰색 */
#site-header:not(.is-scrolled) .logo-text { color: var(--white); }
#site-header:not(.is-scrolled) .logo-mark { background: rgba(255,255,255,0.15); color: var(--white); }
#site-header:not(.is-scrolled) .gnb-link  { color: rgba(255,255,255,0.9); }
#site-header:not(.is-scrolled) .gnb-link:hover { color: var(--white); background: rgba(255,255,255,0.1); }
#site-header:not(.is-scrolled) .gnb-link--cta { background: rgba(255,255,255,0.15); color: var(--white) !important; border: 1px solid rgba(255,255,255,0.5); }
#site-header:not(.is-scrolled) .header-tel__label { color: rgba(255,255,255,0.5); }
#site-header:not(.is-scrolled) .header-tel__num { color: var(--white); }
#site-header:not(.is-scrolled) .hamburger span { background: var(--white); }

.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 60px;
  max-width: 100%;
  gap: 40px;
}

/* 로고 */
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--primary-mid);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--white);
  transition: var(--tr);
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.06em;
  color: var(--dark);
  line-height: 1;
}
.logo-text span { color: var(--primary-mid); }

/* GNB */
.gnb {
  flex: 1;
  display: flex;
  justify-content: center;
}
.gnb-list { display: flex; align-items: center; gap: 4px; }
.gnb-item { position: relative; }

.gnb-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 18px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-600);
  border-radius: 8px;
  transition: var(--tr);
  white-space: nowrap;
}
.gnb-link:hover, .gnb-link.is-active {
  color: var(--primary-mid);
  background: var(--primary-light);
}
.gnb-link--cta {
  background: var(--primary-mid) !important;
  color: var(--white) !important;
  padding: 8px 20px !important;
  box-shadow: 0 4px 14px rgba(0,87,217,0.3);
}
.gnb-link--cta:hover {
  background: var(--primary) !important;
  transform: translateY(-1px);
}
.ico-arrow { font-style: normal; font-size: 0.65rem; opacity: 0.6; transition: transform 0.2s; }
.gnb-item:hover .ico-arrow { transform: rotate(180deg); }

/* 드롭다운 */
.gnb-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s var(--ease);
  z-index: 200;
}
.gnb-item:hover .gnb-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.gnb-dropdown a {
  display: block;
  padding: 9px 20px;
  font-size: 0.84rem;
  color: var(--gray-600);
  transition: var(--tr);
}
.gnb-dropdown a:hover { color: var(--primary-mid); background: var(--primary-light); }

/* 헤더 우측 */
.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-left: auto;
  flex-shrink: 0;
}
.header-tel { text-align: right; line-height: 1.3; }
.header-tel__label { display: block; font-size: 0.68rem; color: var(--gray-400); letter-spacing: 0.05em; }
.header-tel__num { display: block; font-size: 1rem; font-weight: 700; color: var(--dark); transition: var(--tr); }
.header-tel__num:hover { color: var(--primary-mid); }

/* 햄버거 - 흰색 라인 3개 */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  background: transparent;
  border: none;
  transition: var(--tr);
  flex-shrink: 0;
}
.hamburger:hover { opacity: 0.7; }
#site-header.is-scrolled .hamburger span { background: var(--dark); }
.hamburger span { display: block; height: 2px; width: 100%; background: var(--white); border-radius: 2px; transition: var(--tr); transform-origin: center; }
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 모바일 사이드바 */
.mobile-sidebar {
  position: fixed;
  top: 0; right: -100%;
  width: min(320px, 88vw);
  height: 100vh;
  background: var(--white);
  z-index: 1200;
  box-shadow: -4px 0 32px rgba(0,0,0,0.12);
  overflow-y: auto;
  transition: right 0.35s var(--ease);
  display: flex;
  flex-direction: column;
}
.mobile-sidebar.is-open { right: 0; }
.sidebar-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--gray-200); }
.sidebar-close { width: 32px; height: 32px; border-radius: 6px; display: flex; align-items: center; justify-content: center; color: var(--gray-600); transition: var(--tr); }
.sidebar-close:hover { background: var(--gray-100); }
.sidebar-nav { flex: 1; padding: 8px 0; }
.snav-item > .snav-link,
.snav-item > .snav-toggle {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; padding: 13px 22px;
  font-size: 0.92rem; font-weight: 500; color: var(--dark);
  text-align: left; transition: var(--tr);
}
.snav-item > .snav-link:hover,
.snav-item > .snav-toggle:hover { color: var(--primary-mid); }
.ico-plus { font-size: 1.1rem; color: var(--gray-400); transition: transform 0.2s; }
.snav-item.is-open .ico-plus { transform: rotate(45deg); color: var(--primary-mid); }
.snav-sub { display: none; background: var(--gray-50); padding: 6px 0; }
.snav-item.is-open .snav-sub { display: block; }
.snav-sub a { display: block; padding: 9px 36px; font-size: 0.84rem; color: var(--gray-600); transition: var(--tr); }
.snav-sub a:hover { color: var(--primary-mid); }
.sidebar-foot { padding: 20px 22px; border-top: 1px solid var(--gray-200); }
.sidebar-foot .btn { width: 100%; justify-content: center; }
.sidebar-tel { text-align: center; margin-top: 12px; font-size: 0.82rem; color: var(--gray-400); }
.sidebar-tel a { color: var(--dark); font-weight: 700; }
.sidebar-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 1100; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.sidebar-overlay.is-open { opacity: 1; pointer-events: all; }

@media (max-width: 1100px) {
  .gnb, .header-tel { display: none; }
  .hamburger { display: flex; }
  .header-inner { padding: 0 20px; }
}
@media (max-width: 640px) {
  :root { --header-h: 60px; }

  /* 모바일 상단 노치/상태바 대응 */
  #site-header {
    padding-top: env(safe-area-inset-top);
    height: calc(var(--header-h) + env(safe-area-inset-top));
  }
  .header-inner {
    height: var(--header-h);
  }
}