/* Header layout */
.bg-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border-subtle);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-container {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Brand */
.header-brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.header-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
}

.header-logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.85) 0, rgba(255,255,255,0) 40%),
              linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 60%, #005a6d 100%);
  box-shadow: 0 10px 25px rgba(0, 148, 184, 0.28);
  position: relative;
}

.header-logo-mark::after {
  content: "";
  position: absolute;
  inset: 7px 6px 6px 11px;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.8);
}

.header-logo-text {
  display: flex;
  flex-direction: column;
}

.header-logo-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header-logo-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Navigation */
.header-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.nav-item {
  list-style: none;
}

.nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: 0.25rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-black-matte);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}

.nav-item-promotions .nav-link-promotions {
  color: var(--color-primary-dark);
}

.nav-item-promotions .nav-link-promotions::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  margin-right: 0.4rem;
  background: radial-gradient(circle at 30% 30%, #ffffff 0, rgba(255,255,255,0.2) 40%, rgba(255,255,255,0) 100%),
              linear-gradient(135deg, #f97316, #e11d48);
}

/* CTA */
.header-cta {
  margin-left: var(--space-10);
}

.header-btn {
  padding-inline: 1.2rem;
  font-size: var(--font-size-xs);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  background-color: #ffffff;
  align-items: center;
  justify-content: center;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-black-matte);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 4px;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.nav-toggle.is-active .nav-toggle-bar:first-child {
  transform: translateY(3px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle-bar:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

/* Responsive behavior */
@media (max-width: 880px) {
  .header-inner {
    gap: var(--space-4);
  }

  .header-logo-subtitle {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
    flex-direction: column;
  }

  .header-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-border-subtle);
    box-shadow: var(--shadow-soft);
    transform-origin: top center;
    transform: scaleY(1);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-8) var(--space-16) var(--space-12);
    gap: var(--space-6);
  }

  /* Progressive enhancement: hidden only when JS adds class */
  .nav-collapsed .header-nav {
    display: none;
  }

  .nav-expanded .header-nav {
    display: block;
  }

  .nav-link {
    width: 100%;
    padding-block: 0.35rem;
  }
}

@media (min-width: 881px) {
  .header-inner {
    gap: var(--space-16);
  }

  .header-nav {
    position: static;
    box-shadow: none;
  }
}