/**
 * Header block — BEM: header__element--modifier
 */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-bg-primary);
  border-bottom: 0.0625rem solid rgba(245, 241, 234, 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.875rem;
}

.header__logo img {
  height: 2.5rem;
  width: auto;
}

.header__nav {
  display: none;
}

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

.header__nav-link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text-main);
  padding-block: 0.5rem;
  position: relative;
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--color-white);
}

.header__nav-link--active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 0.125rem;
  background: var(--gradient-accent-btn);
  border-radius: var(--radius-card);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header__flag {
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  line-height: 1;
}

.header__login,
.header__register {
  display: none;
}

.header__burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.3125rem;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
  order: 3;
}

.header__burger-line {
  display: block;
  width: 100%;
  height: 0.125rem;
  background: var(--color-white);
  border-radius: var(--radius-card);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.header__burger[aria-expanded="true"] .header__burger-line:nth-child(1) {
  transform: translateY(0.4375rem) 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(-0.4375rem) rotate(-45deg);
}

.header__mobile-menu {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem var(--container-padding-inline) 2rem;
  background-color: var(--color-bg-primary);
  border-top: 0.0625rem solid rgba(245, 241, 234, 0.06);
}

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

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

.header__mobile-link {
  display: block;
  padding: 0.75rem 0;
  font-size: 1rem;
  font-weight: var(--fw-medium);
  color: var(--color-text-main);
  border-bottom: 0.0625rem solid rgba(245, 241, 234, 0.06);
}

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

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

@media (min-width: 64em) {
  .header__nav {
    display: block;
  }

  .header__flag {
    display: inline-flex;
  }

  .header__login,
  .header__register {
    display: inline-flex;
  }

  .header__burger {
    display: none;
  }

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