:root{--color-bg:#f8fafc;--color-surface:#fff;--color-text-primary:#0f172a;--color-text-secondary:#64748b;--color-border:#e2e8f0;--color-border-active:#6366f1;--color-success:#10b981;--color-success-light:#ecfdf5;--color-accent-purple:#8b5cf6;--color-accent-purple-light:#f3e8ff;--color-disabled-bg:#c4b5fd;--shadow-card:0 4px 6px -1px rgba(0,0,0,.05),0 2px 4px -2px rgba(0,0,0,.05);--radius-card:16px;--radius-sm:8px}.checkout-card{background-color:var(--color-surface);border-radius:var(--radius-card);padding:24px}