#menu-btn.open .ham-line:nth-child(1){transform:translateY(7px) rotate(45deg)}#menu-btn.open .ham-line:nth-child(2){opacity:0;transform:scaleX(0)}#menu-btn.open .ham-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}#mobile-menu.open{max-height:500px;opacity:1}#whatsapp-fab:before{content:"";position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border-radius:9999px;background:#25d36659;animation:waPulse 2s ease-out infinite}.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}.reveal.visible{opacity:1;transform:translateY(0)}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeTab{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@keyframes waPulse{0%{transform:scale(1);opacity:.7}70%{transform:scale(1.25);opacity:0}to{transform:scale(1.25);opacity:0}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}