.nav-back {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.15s ease;
}

.nav-back:hover {
  color: var(--dark);
}

footer {
  border-top: 1px solid rgba(0,0,0,0.06);
  padding: 40px 24px;
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.content {
  max-width: 680px;
  margin: 0 auto;
  padding: 130px 24px 80px;
}

.content h1 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.last-updated {
  font-size: 0.85rem;
  color: var(--gray-light);
  margin-bottom: 48px;
  font-weight: 400;
}

.content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 8px;
}

.content p {
  font-size: 0.95rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 16px;
  font-weight: 400;
}

.content ul {
  margin-bottom: 16px;
  padding-left: 20px;
}

.content li {
  font-size: 0.95rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 6px;
  font-weight: 400;
}

.content a {
  color: var(--green-dark);
  text-decoration: none;
  font-weight: 500;
}

.content a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}