.grupal-card{&:before{content:"";width:100%;height:100%;position:absolute;top:0;left:0;z-index:4;transition:backdrop-filter .3s ease-out,background-color .3s ease}&:hover:before{background-color:#ff6600bd;backdrop-filter:blur(3px)}&:hover>button{opacity:1}}.single-card{&:before{content:"";width:100%;height:100%;position:absolute;top:0;left:0;z-index:4;transition:backdrop-filter .3s ease-out,background-color .3s ease}&:hover:before{background-color:#000000ab;backdrop-filter:blur(3px)}&:hover>button{opacity:1}}