/* ============================================
   VIBHUSHA HEADER + NAVIGATION
   ============================================ */

/* ─── HEADER ─── */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: var(--white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  transition: all var(--duration-normal) var(--ease-default);
}

.site-header .header-logo-text {
  color: var(--navy);
}

.site-header .header-logo-tagline {
  color: var(--gold);
}

.site-header .nav-link {
  color: var(--navy);
}

.site-header .nav-link:hover {
  color: var(--gold);
}

.site-header .header-icon-btn {
  color: var(--navy);
}

.site-header.scrolled {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  padding: 0 var(--gutter-desktop);
  max-width: var(--max-width);
  margin: 0 auto;
  gap: var(--space-8);
}

/* ─── LOGO ─── */
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.header-logo-text-wrap {
  display: flex;
  flex-direction: column;
}

.header-logo-text {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ivory);
  line-height: 1;
  transition: color var(--duration-slow);
}

.header-logo-tagline {
  font-family: var(--font-sans);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-top: 2px;
  transition: color var(--duration-slow);
}

.site-header.scrolled .header-logo-tagline { color: var(--gold); }

/* ─── CENTER NAV ─── */
.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  justify-content: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(250,247,242,0.9);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast);
  white-space: nowrap;
}

.nav-link:hover { color: var(--gold-light); }

.site-header.scrolled .nav-link:hover { color: var(--gold); }

.nav-link-arrow {
  width: 10px;
  height: 10px;
  stroke: currentColor;
  fill: none;
  transition: transform var(--duration-fast);
}

.nav-item:hover .nav-link-arrow { transform: rotate(180deg); }

/* ─── HEADER ACTIONS ─── */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  justify-content: flex-end;
}

.header-icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: rgba(250,247,242,0.9);
  cursor: pointer;
  transition: color var(--duration-fast), background var(--duration-fast);
  position: relative;
  background: none;
  border: none;
}

.header-icon-btn:hover {
  color: var(--gold-light);
  background: rgba(255,255,255,0.08);
}

.site-header.scrolled .header-icon-btn:hover {
  color: var(--gold);
  background: var(--ivory-dark);
}

.header-icon-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

/* Cart count badge */
.cart-count {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--magenta);
  color: white;
  font-size: 9px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  opacity: 0;
  transform: scale(0);
  transition: all var(--duration-fast) var(--ease-spring);
}

.cart-count.has-items {
  opacity: 1;
  transform: scale(1);
}

/* Wishlist count */
.wishlist-count {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--magenta);
  color: white;
  font-size: 9px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0);
  transition: all var(--duration-fast) var(--ease-spring);
}

.wishlist-count.has-items {
  opacity: 1;
  transform: scale(1);
}

/* ─── MEGA MENU ─── */
.mega-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--ivory);
  border-top: 2px solid var(--gold);
  box-shadow: var(--shadow-xl);
  width: 820px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 200px;
  gap: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-default),
              transform var(--duration-normal) var(--ease-default);
  z-index: var(--z-nav);
}

.nav-item:hover .mega-menu,
.mega-menu:hover {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.mega-col {
  padding: var(--space-8) var(--space-8);
  border-right: 1px solid var(--color-border);
}

.mega-col:last-child {
  border-right: none;
  padding: 0;
}

.mega-col-title {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.mega-col-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--gold);
  opacity: 0.3;
}

.mega-link {
  display: block;
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--navy);
  padding: 6px 0;
  transition: color var(--duration-fast), padding-left var(--duration-fast);
  letter-spacing: 0.02em;
}

.mega-link:hover {
  color: var(--gold);
  padding-left: 6px;
}

/* Mega menu editorial image */
.mega-image-col {
  position: relative;
  overflow: hidden;
}

.mega-image-col img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-default);
}

.mega-image-col:hover img {
  transform: scale(1.04);
}

.mega-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,39,68,0.7) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
}

.mega-image-label {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: var(--space-1);
}

.mega-image-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--ivory);
  line-height: 1.2;
}

/* ─── MOBILE HEADER ─── */
.mobile-nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(250,247,242,0.9);
  background: none;
  border: none;
  flex-direction: column;
  gap: 5px;
}

.site-header.scrolled .mobile-nav-toggle { color: var(--navy); }

.hamburger-line {
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: all var(--duration-normal) var(--ease-default);
  transform-origin: center;
}

.mobile-nav-toggle.active .hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.mobile-nav-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.active .hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ─── MOBILE MENU DRAWER ─── */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--navy-deep);
  z-index: calc(var(--z-nav) - 1);
  transform: translateX(-100%);
  transition: transform var(--duration-slow) var(--ease-default);
  overflow-y: auto;
  padding-top: var(--nav-height);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu-inner {
  padding: var(--space-8) var(--gutter-mobile);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: var(--ivory);
  padding: var(--space-4) 0;
  border-bottom: 1px solid rgba(240,235,226,0.1);
  cursor: pointer;
  transition: color var(--duration-fast);
}

.mobile-nav-link:hover { color: var(--gold-light); }

.mobile-sub-menu {
  padding: var(--space-3) 0 var(--space-3) var(--space-6);
  display: none;
}

.mobile-sub-menu.open { display: block; }

.mobile-sub-link {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: rgba(250,247,242,0.7);
  padding: var(--space-2) 0;
  transition: color var(--duration-fast);
}

.mobile-sub-link:hover { color: var(--gold-light); }

.mobile-menu-actions {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(240,235,226,0.15);
}

.mobile-menu-contact {
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: rgba(250,247,242,0.5);
}

/* ─── BOTTOM MOBILE NAV ─── */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  background: var(--ivory);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2) 0;
  padding-bottom: env(safe-area-inset-bottom);
}

.mobile-bottom-nav-inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.mobile-bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: var(--space-2) 0;
  color: var(--charcoal-mid);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color var(--duration-fast);
  position: relative;
}

.mobile-bottom-nav-item.active { color: var(--navy); }
.mobile-bottom-nav-item:hover { color: var(--gold); }

.mobile-bottom-nav-item svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

/* ─── SEARCH OVERLAY ─── */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(250,247,242,0.98);
  z-index: calc(var(--z-nav) + 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-16) var(--space-8) var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal);
}

.search-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.search-close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-8);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--charcoal-mid);
}

.search-close:hover { color: var(--navy); }

.search-form-wrap {
  width: 100%;
  max-width: 680px;
  margin-top: var(--space-10);
}

.search-input-wrap {
  position: relative;
  border-bottom: 2px solid var(--navy);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.search-icon {
  width: 22px;
  height: 22px;
  stroke: var(--charcoal-mid);
  fill: none;
  flex-shrink: 0;
}

.search-input {
  width: 100%;
  border: none;
  background: transparent;
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  color: var(--navy);
  padding: var(--space-4) 0;
  outline: none;
}

.search-input::placeholder {
  color: var(--ivory-mid);
}

.search-results {
  margin-top: var(--space-8);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}

.search-quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.search-quick-link {
  font-size: var(--text-xs);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--charcoal-mid);
  cursor: pointer;
  transition: all var(--duration-fast);
}

.search-quick-link:hover {
  border-color: var(--gold);
  color: var(--gold);
}