/* header.css */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--c-bg-primary);
  border-bottom: 1px solid var(--c-border-soft);
  box-shadow: var(--shadow-soft);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  padding-block: 0.5rem;
}
.header__logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.header__logo img { width: clamp(120px, 16vw, 158px); height: auto; }

.header__nav { display: flex; align-items: center; }
.header__nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.8vw, 1.6rem);
}
.header__nav-link {
  color: var(--c-text);
  font-weight: var(--fw-medium);
  padding: 0.4rem 0.2rem;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}
.header__nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--c-heading);
  transition: width var(--transition-fast);
}
.header__nav-link:hover,
.header__nav-link--active { color: var(--c-white); }
.header__nav-link:hover::after,
.header__nav-link--active::after { width: 100%; }

.header__actions { display: flex; align-items: center; gap: 0.75rem; flex: 0 0 auto; }
.header__cta { display: flex; align-items: center; gap: 0.6rem; }
.header__cta .btn { padding: 0.55rem 1rem; }
.header__cta--mobile { display: none; }
.header__flag { display: inline-flex; flex: 0 0 auto; }
.header__flag img { width: 28px; height: auto; border-radius: 3px; display: block; box-shadow: 0 0 0 1px var(--c-border-soft); }

/* Burger */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 10px;
  border-radius: var(--radius);
}
.header__burger-bar {
  display: block;
  height: 2px; width: 100%;
  background: var(--c-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.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__scrim {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: rgba(0,0,0,0.55);
  z-index: calc(var(--z-header) - 1);
}

/* ---- Mobile (< 768px): burger + flat menu ---- */
@media (max-width: 767.98px) {
  .header__cta--desktop { display: none; }
  .header__burger { display: flex; }

  .header__nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    width: min(320px, 86vw);
    height: calc(100dvh - var(--header-h));
    background: var(--c-bg-dark);
    border-left: 1px solid var(--c-border-soft);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1.25rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
    z-index: var(--z-header);
  }
  .header__nav.is-open { transform: translateX(0); }

  .header__nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .header__nav-item { border-bottom: 1px solid var(--c-border-soft); }
  .header__nav-link { display: block; padding: 0.9rem 0.25rem; font-size: 1.05rem; }
  .header__nav-link::after { display: none; }

  .header__cta--mobile {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.25rem;
  }
  .header__cta--mobile .btn { width: 100%; padding: 0.85rem 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .header__nav { transition: none; }
}