/* ==========================================================================
   Header block (BEM: header)
   ========================================================================== */

.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;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.85rem;
}

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

.header__logo img {
  height: clamp(32px, 5vw, 45px);
  width: auto;
}

.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
}

.header__nav-link {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-main);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-base);
}

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

.header__nav-link--active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--gradient-accent-btn);
  border-radius: var(--radius-pill);
}

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

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

.header__cta {
  padding: 0.6rem 1.1rem;
  font-size: var(--font-size-small);
  display: none;
}

.header__burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-card);
  order: 3;
}

.header__burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: 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);
}

.header__mobile-menu {
  display: none;
  background-color: var(--color-bg-dark);
  padding: 1rem clamp(1rem, 4vw, 2.5rem) 1.5rem;
}

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

.header__mobile-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.header__mobile-link {
  display: block;
  padding: 0.85rem 0.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  border-bottom: 1px solid rgba(241, 244, 244, 0.08);
}

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

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

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

  .header__flag {
    display: inline-flex;
  }

  .header__cta {
    display: inline-flex;
  }

  .header__burger {
    display: none;
  }
}