/* ═══════════════════════════════════════════════════════════════════
   Navigation Bar - Apple Style
   ═══════════════════════════════════════════════════════════════════

   Purpose: Minimal, elegant sticky navigation with logo and page links.
   Off-white background, subtle shadow, always accessible.

   ═══════════════════════════════════════════════════════════════════ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-modal);
  background-color: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
  height: 48px;
}

.site-nav-container {
  max-width: var(--container-2xl);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav-logo {
  height: 28px;
  width: auto;
  opacity: 0.9;
  transition: opacity var(--transition-base);
}

.site-nav-logo:hover {
  opacity: 1;
}

.site-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.site-nav-link {
  font-family: var(--font-ui);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  text-decoration: none;
  opacity: 0.75;
  transition: all var(--transition-base);
  letter-spacing: var(--letter-spacing-normal);
}

.site-nav-link:hover {
  opacity: 1;
  color: var(--color-gold-muted);
}

.site-nav-link.active {
  opacity: 1;
  color: var(--color-gold-muted);
  font-weight: var(--font-weight-semibold);
}

/* Add padding to body when nav is present */
body.has-nav {
  padding-top: 48px;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .site-nav {
    height: 44px;
  }

  body.has-nav {
    padding-top: 44px;
  }

  .site-nav-container {
    padding: 0 var(--space-md);
  }

  .site-nav-logo {
    height: 24px;
  }

  .site-nav-links {
    gap: var(--space-md);
  }

  .site-nav-link {
    font-size: var(--font-size-xs);
  }
}