:root{--whatsapp-green:#25d366;--app-blue:#4187f7;--app-light-blue:#d3e3fd;--app-active-blue:#7cacf8;--app-white:#fff;--app-black:#000;--border-radius:1rem}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}img,picture,video,canvas,svg{max-width:100%;height:auto;display:block}button{cursor:pointer;background:0 0;border:none;padding:0}