// Gate: one-line context for visitors arriving via a tracked link (affiliate/ads). No compound names (Tagada rule).
// Cache-safe: always rendered hidden, revealed client-side only when the URL carries utm_source.
add_action( 'woocommerce_before_customer_login_form', function () {
if ( is_user_logged_in() ) { return; }
echo '

'
. '';
}, 5 );

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