/**
 * header.css — Site header block (BEM)
 */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border-subtle);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
}

.header__logo img {
  width: clamp(120px, 12vw, 160px);
  height: auto;
}

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

.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;
  color: var(--color-text-main);
  font-weight: var(--fw-medium);
  font-size: var(--fs-small);
  padding: 0.5rem 0;
  transition: color var(--transition-base);
}

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

.header__nav-link--active {
  color: var(--color-heading-gold);
}

.header__nav-arrow {
  transition: transform var(--transition-base);
}

.header__nav-item--dropdown[data-open="true"] .header__nav-arrow {
  transform: rotate(180deg);
}

.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background: var(--color-bg-dark);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 0.5rem;
  display: grid;
  gap: 0.25rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.header__nav-item--dropdown[data-open="true"] .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__dropdown-link {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-btn);
  color: var(--color-text-main);
  font-size: var(--fs-small);
  transition: background var(--transition-base), color var(--transition-base);
}

.header__dropdown-link:hover,
.header__dropdown-link:focus-visible {
  background: rgba(255, 179, 117, 0.1);
  color: var(--color-heading-gold);
}

/* ---- Actions ---- */
.header__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.header__login,
.header__register {
  display: none;
  padding: 0.6rem 1.1rem;
  font-size: var(--fs-small);
}

.header__flag {
  display: none;
  font-size: 1.4rem;
  line-height: 1;
}

.header__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

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

.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);
}

/* ---- Mobile flat menu ---- */
.header__mobile-menu {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.25rem var(--container-padding) 1.75rem;
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border-subtle);
}

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

.header__mobile-list {
  display: grid;
  gap: 0.25rem;
}

.header__mobile-link {
  display: block;
  padding: 0.75rem 0.25rem;
  font-size: 1rem;
  font-weight: var(--fw-medium);
  color: var(--color-white);
  border-bottom: 1px solid var(--color-border-subtle);
}

.header__mobile-actions {
  display: grid;
  gap: 0.75rem;
}

/* ---- Breakpoints ---- */
@media (min-width: 768px) {
  .header__nav {
    display: block;
  }

  .header__flag {
    display: block;
  }

  .header__burger {
    display: none;
  }

  .header__mobile-menu,
  .header__mobile-menu.is-open {
    display: none;
  }
}

@media (min-width: 1024px) {
  .header__login,
  .header__register {
    display: inline-flex;
  }
}