.btn,.mobilebar button,.mobilebar a{position:relative;overflow:hidden;isolation:isolate;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease}
.whatsapp,.botbtn{overflow:hidden;isolation:isolate;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease}
.btn:hover,.btn:focus,.whatsapp:hover,.whatsapp:focus,.botbtn:hover,.botbtn:focus,.mobilebar button:hover,.mobilebar a:hover{transform:translateY(-2px) scale(1.02);filter:saturate(1.12);box-shadow:0 12px 28px rgba(7,42,82,.3)}
.btn:after,.whatsapp:after,.botbtn:after,.mobilebar button:after,.mobilebar a:after{content:"";position:absolute;z-index:-1;top:-50%;bottom:-50%;left:-58%;width:35%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.58),transparent);transform:skewX(-22deg);animation:button-shine 3.2s ease-in-out infinite;pointer-events:none}
.whatsapp{animation:whatsapp-pulse 2.8s ease-in-out infinite}
@keyframes button-shine{0%,45%{left:-58%}72%,100%{left:128%}}
@keyframes whatsapp-pulse{0%,100%{box-shadow:0 8px 25px rgba(0,0,0,.22),0 0 0 0 rgba(25,139,77,.32)}50%{box-shadow:0 10px 28px rgba(0,0,0,.25),0 0 0 9px rgba(25,139,77,0)}}
@media(prefers-reduced-motion:reduce){.btn:after,.whatsapp:after,.botbtn:after,.mobilebar button:after,.mobilebar a:after,.whatsapp{animation:none!important}}