/* Header and navigation ownership */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-obsidian);
  border-bottom: var(--border-gold);
  box-shadow: var(--shadow-card);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  max-width: 1200px;
  margin-inline: auto;
  padding: var(--space-3) var(--space-5);
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-white-high);
  flex-shrink: 0;
}

.brand:hover {
  color: var(--color-gold-royal);
  text-decoration: none;
}

.brand-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border: none;
  border-radius: 0;
  box-shadow: none;
}

.brand-text {
  font-family: var(--font-heading);
  font-size: var(--text-h4);
  font-weight: var(--weight-h3);
  color: var(--color-gold-royal);
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--color-gold-royal);
  border-radius: var(--radius-small);
  padding: var(--space-2);
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.nav-toggle:hover {
  background-color: var(--color-slate-mid);
}

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

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-gold-royal);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  flex-shrink: 1;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none !important;
  margin: 0;
  padding: 0;
}

.nav-list li {
  margin: 0;
  padding: 0;
}

.nav-list li + li {
  margin: 0;
}

.nav-list a {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  color: var(--color-white-high);
  text-decoration: none;
  font-size: var(--text-body);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  border-radius: var(--radius-small);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-list a:hover {
  color: var(--color-gold-royal);
  background-color: var(--color-slate-dark);
  text-decoration: none;
}

.nav-list a:focus-visible {
  outline: 2px solid var(--color-gold-royal);
  outline-offset: 2px;
}

/* Collision prevention for fixed header */
body {
  padding-top: 64px;
}

/* Mobile layout */
@media (max-width: 768px) {
  .header-inner {
    padding: var(--space-2) var(--space-4);
    min-height: 56px;
  }

  .brand-logo {
    width: 32px;
    height: 32px;
  }

  .brand-text {
    font-size: var(--text-body);
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-obsidian);
    border-bottom: var(--border-gold);
    box-shadow: var(--shadow-elevated);
    max-height: calc(100vh - 56px);
    overflow-y: auto;
    display: none;
    padding: var(--space-4);
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .nav-list a {
    display: block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-body-large);
    line-height: var(--leading-body);
    white-space: normal;
  }

  body {
    padding-top: 56px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: var(--space-2) var(--space-3);
  }

  .brand-text {
    font-size: var(--text-caption);
  }
}