/* ==========================================================================
   Header — Sticky header, navigation, language switcher, mobile menu
   ========================================================================== */

/* --------------------------------------------------------------------------
   Site Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
  transition: background-color var(--transition-base);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-4);
}

/* Logo */
.site-header__logo a {
  display: flex;
  align-items: center;
}

.site-header__logo img,
.site-header__logo .custom-logo {
  max-height: 48px;
  width: auto;
}

.site-header__site-name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-gold);
  letter-spacing: 0.02em;
}

/* Desktop Navigation */
.site-header__nav {
  display: none;
}

.site-header__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-header__menu li {
  position: relative;
}

.site-header__menu li a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.site-header__menu li a:hover,
.site-header__menu li.current-menu-item > a,
.site-header__menu li.current_page_item > a {
  color: var(--color-gold);
}

/* Gold underline on hover */
.site-header__menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-3);
  right: var(--space-3);
  height: 2px;
  background-color: var(--color-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.site-header__menu li a:hover::after,
.site-header__menu li.current-menu-item > a::after,
.site-header__menu li.current_page_item > a::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Submenu */
.site-header__menu li .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-lg);
}

.site-header__menu li:hover > .sub-menu,
.site-header__menu li:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-header__menu li .sub-menu a {
  display: block;
  padding: var(--space-2) var(--space-4);
  text-transform: none;
  font-size: var(--text-sm);
}

.site-header__menu li .sub-menu a::after {
  display: none;
}

/* Actions area */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   Hamburger Button
   -------------------------------------------------------------------------- */
.site-header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  padding: var(--space-2);
}

.site-header__hamburger:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.site-header__hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-base);
  transform-origin: center;
}

.site-header__hamburger[aria-expanded="true"] .site-header__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__hamburger[aria-expanded="true"] .site-header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.site-header__hamburger[aria-expanded="true"] .site-header__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Mobile Menu Overlay
   -------------------------------------------------------------------------- */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 400px;
  background-color: var(--color-bg-secondary);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.mobile-menu[aria-hidden="false"] {
  transform: translateX(0);
}

.mobile-menu__inner {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: var(--space-6);
}

.mobile-menu__close {
  align-self: flex-end;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: var(--text-2xl);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.mobile-menu__close:hover {
  color: var(--color-gold);
}

.mobile-menu__close:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.mobile-menu__list {
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-menu__list li a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  min-height: 44px;
  line-height: 44px;
}

.mobile-menu__list li a:hover,
.mobile-menu__list li.current-menu-item > a {
  color: var(--color-gold);
  background-color: rgba(201, 168, 76, 0.08);
}

.mobile-menu__list li .sub-menu {
  padding-left: var(--space-4);
}

.mobile-menu__list li .sub-menu a {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.mobile-menu__footer {
  margin-top: auto;
  padding-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  border-top: 1px solid var(--color-bg-card);
}

/* --------------------------------------------------------------------------
   Language Switcher
   -------------------------------------------------------------------------- */
.language-switcher__list {
  display: flex;
  align-items: center;
  gap: 0;
}

.language-switcher__item {
  display: flex;
  align-items: center;
}

.language-switcher__item + .language-switcher__item::before {
  content: '|';
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  padding: 0 var(--space-1);
}

.language-switcher__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.language-switcher__link:hover {
  color: var(--color-gold-light);
}

.language-switcher__link--active {
  color: var(--color-gold);
  font-weight: var(--font-semibold);
}

/* --------------------------------------------------------------------------
   Desktop Breakpoint
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
  .site-header__nav {
    display: block;
  }

  .site-header__hamburger {
    display: none;
  }
}