pmpro-body-has-level-id-levels-directory.css

/* change select button colors for level 3 for non level 3 members */
body.pmpro-levels:not(.pmpro-body-has-level-3) #pmpro_level-3 .pmpro_level-select .pmpro_btn.pmpro_btn-select{
	background-color: rgb(0, 165, 157);
	border-color: rgb(0, 165, 157);
}

body.pmpro-levels:not(.pmpro-body-has-level-3) #pmpro_level-3 .pmpro_level-select .pmpro_btn.pmpro_btn-select:hover {
	background-color: rgb(0, 200, 190);
	border-color: rgb(0, 200, 190);
}

/* change select button colors for level 3 for level 3 members */
body.pmpro-levels.pmpro-body-has-level-3 #pmpro_level-3 .pmpro_level-select .pmpro_btn.disabled{
	background-color: #FFF;
	color: rgb(0, 165, 157);
	border-color: rgb(0, 165, 157);
	border-width: 0.25rem;
	cursor: not-allowed;
}