.internal-link{color:#2563eb;font-weight:600;text-decoration:underline;text-underline-offset:4px}.internal-link:hover{color:#1e40af;background:#eff6ff}.tier-card{background:#fff;border:1px solid #e2e8f0;padding:1.5rem;border-radius:.75rem;transition:transform .2s}.tier-card:hover{transform:translateY(-5px);border-color:#2563eb}