/* ==========================================================================
   header block (BEM: header__element--modifier)
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-bg-primary);
  box-shadow: var(--shadow-header);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-block: 0.85rem;
}

.header__logo {
  flex-shrink: 0;
  display: inline-flex;
}

.header__logo img {
  height: 2.25rem;
  width: auto;
}

.header__nav {
  flex: 1;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.header__nav-item {
  position: relative;
}

.header__nav-link,
.header__nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  padding-block: 0.5rem;
  transition: color var(--transition-fast);
}

.header__nav-link:hover,
.header__nav-link:focus-visible,
.header__nav-toggle:hover,
.header__nav-toggle:focus-visible,
.header__nav-link--active {
  color: var(--color-gold);
}

.header__nav-arrow {
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
}

.header__nav-item--dropdown:hover .header__nav-arrow,
.header__nav-item--dropdown:focus-within .header__nav-arrow {
  transform: rotate(-135deg);
}

.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding: 0.6rem;
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.header__nav-item--dropdown:hover .header__dropdown,
.header__nav-item--dropdown:focus-within .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__dropdown-link {
  display: block;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-input);
  font-size: var(--font-size-small);
  color: var(--color-text-primary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header__dropdown-link:hover,
.header__dropdown-link:focus-visible {
  background-color: rgba(255, 194, 31, 0.1);
  color: var(--color-gold);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-shrink: 0;
}

.header__flag-group {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.header__flag-label {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: 0.03em;
}

.header__flag {
  border-radius: 3px;
  object-fit: cover;
}

.header__login,
.header__cta {
  padding: 0.65rem 1.35rem;
  font-size: var(--font-size-small);
}

.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  margin-left: auto;
}

.header__burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

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

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

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

.header__mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--header-height, 64px);
  z-index: var(--z-mobile-menu);
  background-color: var(--color-bg-primary);
  overflow-y: auto;
}

.header__mobile-menu.is-open {
  display: block;
}

.header__mobile-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-block: 1.5rem 3rem;
}

.header__mobile-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.header__mobile-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.header__mobile-link {
  display: block;
  padding: 0.85rem 0.25rem;
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  border-bottom: 1px solid rgba(212, 197, 177, 0.12);
}

.header__mobile-link--sub {
  padding-left: 1.25rem;
  font-size: var(--font-size-small);
  color: rgba(212, 197, 177, 0.8);
}

.header__mobile-flag {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: var(--font-size-small);
  padding-top: 0.5rem;
}

.header__mobile-flag img {
  border-radius: 3px;
}

@media (max-width: 1023px) {
  .header__burger {
    display: flex;
  }

  .header__nav,
  .header__actions {
    display: none;
  }
}