/* ============ Header / GNB ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--color-dark);
  display: flex;
  align-items: center;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.site-header .container-xl {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand-logo img {
  height: 26px;
  width: auto;
}

.gnb {
  display: flex;
  align-items: center;
  gap: var(--space-7);
  list-style: none;
  margin: 0;
  padding: 0;
}

.gnb a {
  color: rgba(255,255,255,0.82);
  font-weight: 600;
  font-size: var(--fs-body);
  white-space: nowrap;
}

.gnb a:hover,
.gnb a.active {
  color: var(--color-white);
}

.gnb a.active {
  position: relative;
}

.gnb a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -22px;
  height: 2px;
  background: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.lang-switcher {
  position: relative;
}

.lang-switcher-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--color-white);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  font-size: var(--fs-small);
  font-weight: 600;
  cursor: pointer;
}

.lang-switcher-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: var(--color-white);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  min-width: 140px;
  padding: var(--space-2);
  display: none;
  z-index: 1100;
}

.lang-switcher.is-open .lang-switcher-menu { display: block; }

.lang-switcher-menu a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-dark);
  font-weight: 500;
  font-size: var(--fs-small);
}

.lang-switcher-menu a:hover { background: var(--color-gray-100); }
.lang-switcher-menu a.active { color: var(--color-primary); font-weight: 700; }

.gnb-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.gnb-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
}

.gnb-overlay {
  display: none;
}

/* ============ Mobile GNB (LNB slide-in) ============ */
@media (max-width: 991.98px) {
  .gnb-toggle { display: flex; }

  .gnb {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: var(--color-dark);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: calc(var(--header-height) + var(--space-6)) var(--space-6) var(--space-6);
    transform: translateX(100%);
    transition: transform 0.28s ease;
    z-index: 1050;
    box-shadow: -12px 0 32px rgba(0,0,0,0.25);
  }

  .gnb.is-open { transform: translateX(0); }

  .gnb li { width: 100%; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .gnb a { display: block; padding: var(--space-4) 0; }
  .gnb a.active::after { display: none; }

  .gnb-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15,15,20,0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.28s ease;
    z-index: 1040;
  }

  .gnb-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  .btn.header-cta-desktop { display: none; }
}

/* ============ Footer ============ */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.6);
  padding: var(--space-10) 0 var(--space-6);
  font-size: var(--fs-small);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  flex-wrap: wrap;
}

.footer-logo img { height: 22px; margin-bottom: var(--space-4); }

.footer-nav {
  display: flex;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.footer-nav h6 {
  color: var(--color-white);
  font-size: var(--fs-small);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.footer-nav ul { list-style: none; padding: 0; margin: 0; }
.footer-nav li { margin-bottom: var(--space-2); }
.footer-nav a { color: rgba(255,255,255,0.6); }
.footer-nav a:hover { color: var(--color-white); }

.footer-meta {
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-meta address {
  font-style: normal;
  line-height: 1.9;
}

.footer-styleguide-link {
  color: rgba(255,255,255,0.35);
  font-size: var(--fs-xs);
}

.footer-styleguide-link:hover { color: rgba(255,255,255,0.7); }

@media (max-width: 767.98px) {
  .footer-top { flex-direction: column; gap: var(--space-6); }
  .footer-meta { flex-direction: column; align-items: flex-start; }
}