/* ==========================================================================
   header block — BEM: header__element--modifier
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-bg-primary);
  border-bottom: 1px solid rgba(245, 241, 234, 0.06);
}

.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 { width: clamp(120px, 12vw, 168px); height: auto; }

.header__nav { display: none; }
.header__nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 1.8vw, 2rem);
}
.header__nav-link {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  font-size: var(--fs-small);
  padding: 0.5rem 0.1rem;
  position: relative;
  transition: color var(--transition-base);
}
.header__nav-link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--color-heading-gold);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}
.header__nav-link:hover,
.header__nav-link:focus-visible { color: var(--color-white); }
.header__nav-link:hover::after,
.header__nav-link:focus-visible::after,
.header__nav-link--active::after { transform: scaleX(1); }
.header__nav-link--active { color: var(--color-heading-gold); }

.header__actions { display: flex; align-items: center; gap: 0.75rem; }
.header__cta { padding: 0.6rem 1.15rem; font-size: var(--fs-small); }
.header__cta--login,
.header__cta--register { display: none; }

.header__flag {
  font-size: 1.35rem;
  line-height: 1;
  display: none;
}

.header__burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-card);
  order: 3;
}
.header__burger:hover { background: rgba(245, 241, 234, 0.06); }
.header__burger-bar {
  width: 20px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.header__burger[aria-expanded="true"] .header__burger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__burger[aria-expanded="true"] .header__burger-bar:nth-child(2) { opacity: 0; }
.header__burger[aria-expanded="true"] .header__burger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.header__mobile-menu {
  border-top: 1px solid rgba(245, 241, 234, 0.06);
  background: var(--color-bg-primary);
  padding: 1rem var(--container-padding) 1.5rem;
}
.header__mobile-menu[hidden] { display: none; }
.header__mobile-list { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 1rem; }
.header__mobile-link {
  display: block;
  padding: 0.75rem 0.25rem;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  border-bottom: 1px solid rgba(245, 241, 234, 0.06);
}
.header__mobile-link:hover,
.header__mobile-link:focus-visible,
.header__mobile-link--active { 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__cta--login,
  .header__cta--register { display: inline-flex; }
  .header__flag { display: inline-flex; align-items: center; }
  .header__burger { display: none; }
}

@media (min-width: 1024px) {
  .header__inner { padding-block: 1.1rem; }
}