/* header.css (BEM) */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-bg-primary);
  border-bottom: 1px solid rgba(79, 106, 104, 0.3);
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.25);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}
.header__logo { flex: 0 0 auto; }
.header__logo img { width: clamp(120px, 12vw, 160px); height: auto; }

.header__actions { display: flex; align-items: center; gap: 0.75rem; }
.header__flag img { border-radius: 3px; box-shadow: 0 0 0 1px rgba(255,255,255,0.15); width: 28px; height: auto; }

/* Nav — mobile drawer by default */
.header__nav {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(86vw, 340px);
  background: var(--color-bg-dark);
  padding: calc(var(--header-h) + 1rem) 1.5rem 2rem;
  transform: translateX(100%);
  transition: transform var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  overflow-y: auto;
  z-index: 1200;
}
.header__nav.is-open { transform: translateX(0); }
.header__close {
  position: absolute;
  top: 1.25rem; right: 1.25rem;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--color-card);
  display: grid; place-items: center;
}
.header__close::before, .header__close::after {
  content: ""; position: absolute; width: 18px; height: 2px; background: var(--color-white);
}
.header__close::before { transform: rotate(45deg); }
.header__close::after { transform: rotate(-45deg); }

.header__menu { display: flex; flex-direction: column; gap: 0.25rem; }
.header__link {
  display: block;
  padding: 0.75rem 0.5rem;
  color: var(--color-white);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}
.header__link:hover { color: var(--color-heading); }
.header__link--active { color: var(--color-heading); background: rgba(155, 232, 106, 0.08); }

.header__cta { display: flex; gap: 0.75rem; }
.header__cta--mobile { flex-direction: column; }
.header__cta--desktop { display: none; }
.header__btn { width: 100%; }

.header__burger {
  width: 44px; height: 44px;
  display: inline-flex; flex-direction: column;
  justify-content: center; align-items: center; gap: 5px;
  border-radius: var(--radius-sm);
  background: var(--color-card);
}
.header__burger span { width: 22px; height: 2px; background: var(--color-white); border-radius: 2px; transition: transform var(--transition-fast), opacity var(--transition-fast); }
.header__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.header__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.header__overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  /* Below the header's stacking context (z-index:1000) so the open drawer,
     which lives inside the header, is never dimmed — only the page behind is. */
  z-index: 999;
}
body.nav-open { overflow: hidden; }

/* Desktop */
@media (min-width: 992px) {
  .header__burger, .header__close { display: none; }
  .header__nav {
    position: static;
    width: auto;
    flex: 1 1 auto;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    background: none;
    padding: 0;
    transform: none;
    overflow: visible;
    gap: 0;
  }
  .header__menu { flex-direction: row; gap: 0.25rem; }
  .header__cta--mobile { display: none; }
  .header__cta--desktop { display: flex; }
  .header__link { padding: 0.5rem 0.9rem; }
}