/* ══════════════════════════════════════════════════════════════════
 * Gallery Noir Chic — Navigation
 * Clean header: Logo + Hamburger only. Full-screen overlay on click.
 * ══════════════════════════════════════════════════════════════════ */

/* ── 1. HEADER BAR ─────────────────────────────────────────────── */
.gnc-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  height: var(--gnc-header-h, 90px);

  /* Transparent at top */
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;

  transition: background 0.35s ease,
              border-color 0.35s ease,
              backdrop-filter 0.35s ease,
              box-shadow 0.35s ease;
}

/* Scrolled state — white + sticky feel */
.gnc-header--scrolled {
  background: rgba(250,250,250,0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: rgba(0,0,0,0.07);
  box-shadow: 0 1px 24px rgba(0,0,0,0.06);
}

.gnc-header__inner {
  max-width: 90rem;
  height: 100%;
  margin: 0 auto;
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ── Brand / Logo ── */
.gnc-header__brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  outline: none;
  flex-shrink: 0;
}

.gnc-logo-img {
  height: var(--gnc-logo-h, 60px) !important;
  width: auto !important;
  object-fit: contain;
  display: block;
}

.gnc-header__brand-text {
  font-family: var(--font-serif, 'Forum', Georgia, serif);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #0A0A0A;
  font-synthesis: none;
}

/* ── 2. HAMBURGER BUTTON ───────────────────────────────────────── */
.gnc-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: 0;
  transition: opacity 0.2s;
}

.gnc-hamburger:hover { opacity: 0.5; }

.gnc-hamburger__bar {
  display: block;
  width: 24px;
  height: 1.5px;
  background: #FAFAFA;           /* white at top over hero */
  transition: transform 0.35s cubic-bezier(.77,0,.175,1),
              opacity   0.25s ease,
              background 0.35s ease;
  transform-origin: center;
}

/* Once scrolled, bars turn dark */
.gnc-header--scrolled .gnc-hamburger__bar { background: #0A0A0A; }

/* Brand text colour — white at top, dark when scrolled */
.gnc-header__brand-text { color: #FAFAFA; transition: color 0.35s ease; }
.gnc-header--scrolled .gnc-header__brand-text { color: #0A0A0A; }

/* Logo image — always show original, no filter */
.gnc-logo-img {
  transition: none;
}

/* Hamburger → X animation when overlay is open */
.gnc-hamburger.gnc-is-open .gnc-hamburger__bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.gnc-hamburger.gnc-is-open .gnc-hamburger__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.gnc-hamburger.gnc-is-open .gnc-hamburger__bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ── 3. FULL-SCREEN OVERLAY ────────────────────────────────────── */
.gnc-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 600;
  background: #0A0A0A;
  display: flex;
  flex-direction: column;
  padding: 0 clamp(1.5rem, 5vw, 5rem);
  padding-bottom: 3rem;

  /* Hidden state */
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.4s cubic-bezier(.77,0,.175,1),
              transform 0.4s cubic-bezier(.77,0,.175,1),
              visibility 0.4s;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.gnc-nav-overlay.gnc-overlay-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ── Overlay header row: logo + close ─────────────────────────── */
.gnc-nav-overlay__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--gnc-header-h, 90px);
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 2.5rem;
}

.gnc-nav-overlay__brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.gnc-nav-overlay__logo {
  height: var(--gnc-logo-h, 60px);
  width: auto;
  object-fit: contain;
  filter: invert(1) brightness(2); /* white logo on dark bg */
}

.gnc-nav-overlay__brand-text {
  font-family: var(--font-serif, 'Forum', Georgia, serif);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: #FAFAFA;
  letter-spacing: 0.04em;
  font-synthesis: none;
}

/* ── Close button (X) inside overlay ─────────────────────────── */
.gnc-nav-overlay__close {
  position: relative;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: 0;
  transition: opacity 0.2s;
}
.gnc-nav-overlay__close:hover { opacity: 0.5; }

.gnc-nav-overlay__close span {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 22px;
  height: 1.5px;
  background: #FAFAFA;
  display: block;
}
.gnc-nav-overlay__close span:nth-child(1) {
  transform: translate(-50%, -50%) rotate(45deg);
}
.gnc-nav-overlay__close span:nth-child(2) {
  transform: translate(-50%, -50%) rotate(-45deg);
}

/* ── 4. OVERLAY MENU LINKS ─────────────────────────────────────── */
.gnc-nav-overlay__nav {
  flex: 1;
}

.gnc-overlay-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Top-level items */
.gnc-overlay-menu > .gnc-nav-item {
  list-style: none;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  overflow: hidden;
}

/* Top-level link */
.gnc-overlay-menu > .gnc-nav-item > .gnc-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: clamp(0.9rem, 2.5vh, 1.4rem) 0;
  font-family: var(--font-serif, 'Forum', Georgia, serif);
  font-size: clamp(1.5rem, 4vw, 2.8rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  text-transform: none;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  line-height: 1.1;
  font-synthesis: none;
  transition: color 0.2s, opacity 0.2s;
}

.gnc-overlay-menu > .gnc-nav-item > .gnc-nav-link:hover {
  color: #FAFAFA;
  opacity: 1;
}

/* Stagger animation for links */
.gnc-overlay-menu > .gnc-nav-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item { opacity: 1; transform: translateY(0); }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(1) { transition-delay: 0.05s; }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(2) { transition-delay: 0.10s; }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(3) { transition-delay: 0.15s; }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(4) { transition-delay: 0.20s; }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(5) { transition-delay: 0.25s; }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(6) { transition-delay: 0.30s; }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(7) { transition-delay: 0.35s; }
.gnc-overlay-open .gnc-overlay-menu > .gnc-nav-item:nth-child(8) { transition-delay: 0.40s; }

/* Dropdown arrow */
.gnc-overlay-menu .gnc-has-dropdown > .gnc-nav-link::after,
.gnc-overlay-menu .gnc-has-mega    > .gnc-nav-link::after {
  content: '+';
  font-family: var(--font-sans, 'Inter', sans-serif);
  font-size: 1.5rem;
  font-weight: 200;
  border: none;
  opacity: 0.35;
  transition: transform 0.3s ease, opacity 0.2s;
  flex-shrink: 0;
  margin-left: 1rem;
  line-height: 1;
}

.gnc-overlay-menu .gnc-nav-item.gnc-mob-open > .gnc-nav-link::after {
  content: '−';
  opacity: 0.6;
}

/* ── Sub-menu (dropdown) inside overlay ───────────────────────── */
.gnc-overlay-menu .gnc-dropdown,
.gnc-overlay-menu .gnc-mega-panel {
  position: static !important;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  background: transparent;
  box-shadow: none;
  border: none;
  transform: none !important;
  transition: max-height 0.4s ease, opacity 0.3s ease, visibility 0.3s;
  padding: 0;
}

.gnc-overlay-menu .gnc-dropdown::before { display: none; }

.gnc-overlay-menu .gnc-nav-item.gnc-mob-open > .gnc-dropdown,
.gnc-overlay-menu .gnc-nav-item.gnc-mob-open > .gnc-mega-panel {
  max-height: 600px;
  opacity: 1;
  visibility: visible;
}

/* Sub-link style */
.gnc-overlay-menu .gnc-dropdown {
  padding: 0.5rem 0 1rem 1.5rem;
}

.gnc-overlay-menu .gnc-dropdown__item { list-style: none; }

.gnc-overlay-menu .gnc-dropdown__link {
  display: block;
  padding: 0.45rem 0;
  font-size: clamp(0.8rem, 1.8vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(255,255,255,0.4);
  background: transparent;
  transition: color 0.2s;
  white-space: normal;
}
.gnc-overlay-menu .gnc-dropdown__link:hover { color: rgba(255,255,255,0.9); }

/* Mega panel inside overlay */
.gnc-overlay-menu .gnc-mega-panel {
  top: auto; left: auto; right: auto;
}
.gnc-overlay-menu .gnc-mega-inner {
  padding: 0.5rem 0 1rem 1.5rem;
}
.gnc-overlay-menu .gnc-mega-cols {
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
.gnc-overlay-menu .gnc-mega-col__title { color: rgba(255,255,255,0.6); font-size: 0.875rem; }
.gnc-overlay-menu .gnc-mega-col__link  { color: rgba(255,255,255,0.35); }
.gnc-overlay-menu .gnc-mega-col__link:hover { color: rgba(255,255,255,0.85); }
.gnc-overlay-menu .gnc-mega-col__head { border-bottom-color: rgba(255,255,255,0.08); }

/* ── 5. OVERLAY FOOTER (CTA) ───────────────────────────────────── */
.gnc-nav-overlay__footer {
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255,255,255,0.07);
  margin-top: 1rem;
  flex-shrink: 0;

  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease 0.45s, transform 0.4s ease 0.45s;
}
.gnc-overlay-open .gnc-nav-overlay__footer {
  opacity: 1;
  transform: translateY(0);
}

.gnc-nav-overlay__cta {
  display: inline-block;
  font-size: clamp(9px, 1.2vw, 11px);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 0.85rem 2.5rem;
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.gnc-nav-overlay__cta:hover {
  color: #0A0A0A;
  background: #FAFAFA;
  border-color: #FAFAFA;
}

/* ── 6. BACKDROP ───────────────────────────────────────────────── */
/* (overlay covers full screen — backdrop not needed, but kept for
   potential partial-panel future change) */
.gnc-nav-backdrop { display: none; }

/* ── 7. BODY LOCK (prevent scroll when overlay open) ──────────── */
body.gnc-nav-open {
  overflow: hidden;
}

/* ── 8. FOOTER NAV (unchanged) ─────────────────────────────────── */
.gnc-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gnc-footer-nav .gnc-nav-link {
  color: rgba(255,255,255,0.5);
  font-size: 9px;
  font-size: clamp(8px, 1.1vw, 10px);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.2s;
}
.gnc-footer-nav .gnc-nav-link:hover { color: rgba(255,255,255,0.85); }

/* ── 9. FOCUS / KEYBOARD ───────────────────────────────────────── */
.gnc-hamburger:focus-visible,
.gnc-nav-overlay__close:focus-visible {
  outline: 2px solid rgba(255,255,255,0.5);
  outline-offset: 3px;
}

.gnc-overlay-menu .gnc-nav-link:focus-visible,
.gnc-overlay-menu .gnc-dropdown__link:focus-visible {
  outline: 2px solid rgba(255,255,255,0.5);
  outline-offset: 4px;
}

/* ── 10. RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .gnc-header__inner { padding: 0 1.25rem; }

  .gnc-nav-overlay {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }

  .gnc-overlay-menu > .gnc-nav-item > .gnc-nav-link {
    font-size: clamp(1.4rem, 7vw, 2.2rem);
    padding: 0.85rem 0;
  }
}

@media (max-width: 480px) {
  .gnc-overlay-menu > .gnc-nav-item > .gnc-nav-link {
    font-size: clamp(1.2rem, 6vw, 1.8rem);
  }
}

/* Legacy classes — keep so other templates don't break */
.gnc-desktop-nav { display: none !important; }
.gnc-mobile-toggle { display: none !important; }
.gnc-mobile-nav { display: none !important; }
.gnc-nav-bar-inner { height: var(--gnc-header-h, 90px); }