/* Header styles for Au Ssiezen */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 6, 7, 0.98), rgba(5, 6, 7, 0.90), rgba(5, 6, 7, 0.82));
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: var(--space-4);
}

.site-header__brand {
  display: flex;
  align-items: center;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.3rem 0;
  color: var(--color-text);
}

.site-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 30% 20%, rgba(244, 224, 162, 0.75), transparent 55%),
    radial-gradient(circle at 70% 80%, rgba(29, 77, 63, 0.8), transparent 60%),
    linear-gradient(135deg, var(--color-walnut-deep), #050607);
  box-shadow: 0 0 0 1px rgba(214, 169, 92, 0.4), var(--shadow-soft);
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-header__logo-primary {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-header__logo-subtitle {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.site-header__nav {
  display: flex;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.3rem;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-base);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-text);
}

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

.site-header__nav-item--cta .site-header__nav-link {
  padding-inline: 1.1rem;
  padding-block: 0.45rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(214, 169, 92, 0.7);
  background: radial-gradient(circle at top left, rgba(214, 169, 92, 0.17), transparent 55%), rgba(16, 18, 21, 0.98);
  color: var(--color-text);
}

.site-header__nav-link--cta::after {
  display: none;
}

.site-header__nav-item--cta .site-header__nav-link:hover,
.site-header__nav-item--cta .site-header__nav-link:focus-visible {
  background: linear-gradient(135deg, var(--color-primary), #f4e0a2);
  color: #1b120a;
  box-shadow: var(--shadow-soft);
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(214, 169, 92, 0.6);
  background: rgba(5, 6, 7, 0.8);
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding-inline: 0.4rem;
  color: var(--color-text);
}

.site-header__toggle-bar {
  width: 16px;
  height: 1.5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

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

/* Open state visuals handled via JS by toggling .is-open on header */
.site-header.is-open .site-header__toggle-bar:first-child {
  transform: translateY(3px) rotate(42deg);
}

.site-header.is-open .site-header__toggle-bar:last-child {
  transform: translateY(-3px) rotate(-42deg);
}

/* Responsive behaviour */
@media (max-width: 900px) {
  .site-header__toggle {
    display: flex;
    flex-direction: column;
  }

  .site-header__nav {
    position: fixed;
    inset-block-start: var(--header-height);
    inset-inline: 0;
    max-height: 0;
    overflow: hidden;
    background: radial-gradient(circle at top, rgba(214, 169, 92, 0.13), transparent 60%), var(--color-bg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: max-height var(--transition-slow);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-6);
    gap: var(--space-4);
  }

  .site-header.is-open .site-header__nav {
    max-height: 320px;
  }

  .site-header__nav-item--cta .site-header__nav-link {
    align-self: stretch;
    justify-content: center;
    text-align: center;
    width: 100%;
  }
}

@media (max-width: 520px) {
  .site-header__logo-subtitle {
    display: none;
  }
}