/* ==========================================================================
   Vitruviana — header.css
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(8, 7, 12, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all 0.4s var(--ease-luxury);
}
.site-header--scrolled {
  background: rgba(8, 7, 12, 0.98);
}
.site-header--scrolled .header__inner { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.site-header--scrolled .header__logo .logo-svg { height: 50px; width: 50px; }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 120px;
  max-width: none;
  transition: padding 0.4s var(--ease-luxury);
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  z-index: 10;
}
.header__logo .logo-svg {
  height: 76px;
  width: 75px;
  transition: all 0.4s var(--ease-luxury);
}

/* Navigation */
.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  text-transform: none;
  letter-spacing: 0.52px;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
  white-space: nowrap;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width 0.3s ease, left 0.3s ease;
}
.nav-link:hover::after {
  width: 100%;
  left: 0;
}
.nav-link:hover { color: var(--color-ivory); }
.nav-arrow {
  font-size: 0.6em;
  margin-left: 0.25rem;
  transition: transform 0.3s ease;
}
.nav-item--dropdown.active .nav-arrow { transform: rotate(180deg); }

/* CTA button in header */
.btn-cta--header {
  padding: 12px 28px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 2px;
  border: 1px solid rgba(201, 168, 76, 0.3);
  background: linear-gradient(170deg, #C9A84C 0%, #B89840 100%);
  color: #1a1a1a;
}
.btn-cta--header::before { display: none; }
.btn-cta--header:hover {
  background: linear-gradient(170deg, #D4B85E 0%, #C9A84C 100%);
  color: #1a1a1a;
}

/* Dropdown */
.nav-item--dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-bg-secondary);
  min-width: 200px;
  padding: 0.5rem 0;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 100;
}
.nav-item--dropdown.active .dropdown-menu {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.dropdown-menu__item {
  display: block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 400;
  color: var(--color-text-primary);
  transition: color 0.2s ease;
}
.dropdown-menu__item:hover { color: var(--color-gold); }

/* Mega-menu */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-divider);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 2rem;
  min-width: 500px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease-luxury), transform 0.35s var(--ease-luxury);
  z-index: 100;
}
.nav-item--mega.active .mega-menu {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.mega-menu__group { margin-bottom: 1.5rem; }
.mega-menu__group:last-child { margin-bottom: 0; }
.mega-menu__category-title {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-overline);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}
.mega-menu__item {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 400;
  color: var(--color-text-primary);
  padding: 0.35rem 0;
  transition: color 0.2s ease;
}
.mega-menu__item:hover { color: var(--color-gold); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 30px;
  height: 30px;
  z-index: 1001;
  background: none;
  border: none;
  cursor: pointer;
}
.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-gold);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.active .hamburger__line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.hamburger.active .hamburger__line:nth-child(2) { opacity: 0; }
.hamburger.active .hamburger__line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  background: var(--color-bg-primary);
  z-index: 999;
  transform: translateX(100%);
  transition: transform 0.5s var(--ease-luxury);
  overflow-y: auto;
  padding: 6rem 2rem 2rem;
}
.mobile-menu.active { transform: translateX(0); }
.mobile-menu__link {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border-divider);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}
.mobile-menu__toggle { display: flex; justify-content: space-between; align-items: center; }
.mobile-menu__arrow {
  transition: transform 0.3s ease;
  font-size: 0.8em;
}
.mobile-menu__accordion.active .mobile-menu__arrow { transform: rotate(180deg); }
.mobile-menu__sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-luxury);
  padding-left: 1rem;
}
.mobile-menu__sub-title {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-overline);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  padding: 1rem 0 0.5rem;
}
.mobile-menu__sub-link {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 300;
  color: var(--color-text-secondary);
  padding: 0.5rem 0;
  transition: color 0.2s ease;
}
.mobile-menu__sub-link:hover { color: var(--color-gold); }
.mobile-menu__cta {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border-divider);
}

/* Responsive */
@media (max-width: 1023px) {
  .header__nav { display: none; }
  .header__inner { padding: 0 1.5rem; }
  .hamburger { display: flex; }
}
@media (min-width: 1024px) and (max-width: 1279px) {
  .header__inner { padding: 0 3rem; }
  .header__nav { gap: 24px; }
}