/* nav.css — меню в шапке (десктоп горизонтальное, мобильное поповер). */

.site-nav {
  margin-left: auto;
}

.nav-toggle {
  display: none;
  padding: 8px;
  margin-right: -8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: currentColor;
  margin-block: 4px;
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-menu {
  display: flex;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}
.nav-menu a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: var(--fs-small);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.nav-menu a:hover {
  color: var(--color-text);
  background: var(--color-bg-subtle);
}
.nav-menu a[aria-current="page"] {
  color: var(--color-text);
  background: var(--color-accent-subtle);
}

/* Мобильное меню */
@media (max-width: 720px) {
  .nav-toggle { display: block; order: 2; margin-left: auto; }
  .nav-menu {
    position: fixed;
    inset: 60px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-4);
    gap: var(--space-2);
    transform: translateY(-100%);
    transition: transform var(--transition-base);
    z-index: 90;
  }
  .site-nav[data-open="true"] .nav-menu {
    transform: translateY(0);
  }
  .site-nav[data-open="true"] .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .site-nav[data-open="true"] .nav-toggle span:nth-child(2) { opacity: 0; }
  .site-nav[data-open="true"] .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .nav-menu a { padding-block: var(--space-3); font-size: var(--fs-body); }
}