/* Header-specific styles building on base.css */

.header-shell {
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-brand-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.site-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  border: 1px solid rgba(198, 161, 90, 0.6);
  background: radial-gradient(circle at 0% 0%, rgba(198, 161, 90, 0.4), transparent 60%),
              rgba(15, 17, 21, 0.9);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-heading);
}

.site-logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.site-logo-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-heading);
}

.site-logo-subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-300);
}

/* Primary nav */

.primary-nav {
  display: flex;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item-cta {
  margin-left: 0.75rem;
}

.nav-link {
  position: relative;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-200);
  text-decoration: none;
  padding-block: 0.25rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 0;
  height: 1px;
  background: linear-gradient(to right, var(--color-accent), var(--color-highlight));
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  width: 100%;
}

.nav-link[aria-current="page"] {
  color: var(--color-heading);
}

.nav-cta {
  font-size: 0.78rem;
}

/* Mobile toggle */

.header-toggle {
  display: none;
  align-items: center;
  gap: 0.4rem;
  color: var(--gray-100);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
}

.header-toggle-box {
  width: 1.9rem;
  height: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.3rem;
}

.header-toggle-line {
  height: 1px;
  width: 100%;
  background: linear-gradient(to right, var(--color-accent), var(--color-highlight));
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.header-toggle-text {
  font-size: 0.72rem;
}

.header-mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 12, 0.78);
  backdrop-filter: blur(10px);
  z-index: 35;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.header-mobile-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* Mobile menu state */

.header-shell.is-nav-open .header-toggle-line:first-child {
  transform: translateY(0.35rem) rotate(45deg);
}

.header-shell.is-nav-open .header-toggle-line:last-child {
  transform: translateY(-0.35rem) rotate(-45deg);
}

.header-shell.is-nav-open .primary-nav {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* Responsive */

@media (max-width: 960px) {
  .primary-nav {
    position: fixed;
    inset-inline: 0;
    top: 64px;
    background: radial-gradient(circle at top, rgba(198, 161, 90, 0.2), transparent 55%),
                rgba(4, 7, 13, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-block: 1.5rem 2rem;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow), transform var(--transition-slow);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    padding-inline: var(--container-padding-x);
  }

  .nav-item-cta {
    width: 100%;
  }

  .nav-cta {
    width: 100%;
    justify-content: center;
  }

  .header-toggle {
    display: inline-flex;
    z-index: 222;
  }
}

@media (max-width: 640px) {
  .site-logo-subtitle {
    display: none;
  }
}