/* ============================================
   HEADER & NAVIGATION
   Desktop horizontal nav + Mobile hamburger
   ============================================ */

/* ---- Header Shell ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  background: rgba(14, 14, 14, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: all var(--transition-base);
}

.site-header.header--scrolled {
  height: var(--header-height-scrolled);
  background: rgba(14, 14, 14, 0.95);
  border-bottom-color: var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ---- Site Logo / Title ---- */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.site-logo:hover {
  opacity: 0.85;
  color: var(--color-text-primary);
}

.logo-full {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 0.8rem + 1vw, 1.3rem);
  color: var(--color-gold);
  letter-spacing: var(--tracking-wider);
  white-space: nowrap;
}

.logo-compact {
  display: none;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-gold);
  letter-spacing: var(--tracking-wide);
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--color-gold-dim);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
}

/* Show compact on mobile, full on desktop */
@media (max-width: 1023px) {
  .logo-full { display: none; }
  .logo-compact { display: flex; }
}

@media (min-width: 1024px) {
  .logo-full { display: block; }
  .logo-compact { display: none; }
}

/* ---- Desktop Navigation ---- */
.main-nav {
  display: none;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: center;
  }
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  white-space: nowrap;
  transition: color var(--transition-fast);
  border-radius: var(--radius-sm);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-sm);
  right: var(--space-sm);
  height: 1.5px;
  background: var(--color-gold);
  border-radius: var(--radius-full);
}

.nav-arrow {
  font-size: 0.6em;
  transition: transform var(--transition-fast);
}

/* ---- Desktop Dropdowns ---- */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-xs));
  left: 50%;
  transform: translateX(-50%);
  min-width: 220px;
  padding: var(--space-xs);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

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

.nav-dropdown-menu a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: var(--weight-regular);
  color: var(--color-text-secondary);
  letter-spacing: var(--tracking-normal);
  text-transform: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-dropdown-menu a:hover {
  background: var(--color-gold-glow);
  color: var(--color-gold);
}

.nav-dropdown-menu a.active {
  color: var(--color-gold);
}

/* ---- Header Actions (lang toggle + hamburger) ---- */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
}

/* Language Toggle */
.lang-toggle {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-muted);
  padding: var(--space-2xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  background: transparent;
  display: inline-block;
  text-decoration: none;
  line-height: normal;
}

.lang-toggle:hover {
  color: var(--color-gold);
  border-color: var(--color-gold-dim);
}

/* Hamburger button */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  gap: 5px;
  cursor: pointer;
  z-index: calc(var(--z-overlay) + 1);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text-secondary);
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.is-active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
  background: var(--color-gold);
}

.hamburger.is-active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.is-active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
  background: var(--color-gold);
}

@media (min-width: 1024px) {
  .hamburger { display: none; }
}

/* ---- Mobile Menu Overlay ---- */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 380px;
  height: 100vh;
  height: 100dvh;
  background: var(--color-bg-primary);
  border-left: 1px solid var(--color-border);
  z-index: var(--z-overlay);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-smooth);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: calc(var(--header-height) + var(--space-xl)) var(--space-2xl) var(--space-2xl);
}

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

/* Backdrop */
.mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: calc(var(--z-overlay) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-menu-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Mobile menu category labels */
.mobile-nav-category {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold-dim);
  padding: var(--space-lg) 0 var(--space-sm);
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: var(--space-xs);
}

.mobile-nav-category:first-child {
  padding-top: 0;
}

/* Mobile menu links */
.mobile-nav-link {
  display: block;
  padding: var(--space-sm) 0;
  font-family: var(--font-ui);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

/* Mobile language toggle at bottom */
.mobile-lang-toggle {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}