.download-btn{padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-primary);color:var(--color-white);border-radius:var(--radius-md);transition:transform var(--transition-fast);font-weight:600;text-decoration:none;display:inline-block}.download-btn:hover{transform:translateY(-1px)}.security-grid{gap:var(--spacing-lg);margin:var(--spacing-lg) 0;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));display:grid}.security-card{background:var(--color-gray-50);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--spacing-lg);transition:transform var(--transition-fast), box-shadow var(--transition-fast)}.security-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}.security-icon{margin-bottom:var(--spacing-sm);font-size:2.5rem}.security-card h4{margin-bottom:var(--spacing-xs);font-size:1.125rem}.security-card p{color:var(--color-text-secondary);font-size:.875rem}.whitepaper-download-list{margin:var(--spacing-sm) 0 var(--spacing-lg) var(--spacing-lg);color:var(--color-text-secondary)}.whitepaper-download-list li{margin-bottom:.25rem}