.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(247, 245, 242, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  width: min(100% - 2.5rem, var(--max-width));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.nav-logo:hover {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: var(--transition);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition);
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
}

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

.nav-link.active {
  border-bottom-color: var(--color-accent);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-list {
    position: fixed;
    top: 4.5rem;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm) 0;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 0.85rem 1.25rem;
    border-bottom: none;
  }
}