:root{--wa-green: #25D366;--wa-teal: #128C7E;--wa-dark-teal: #075E54;--wa-blue: #34B7F1;--wa-bg: #ECE5DD}body{background-color:#f0f2f5;transition:background-color .3s ease}.custom-scrollbar::-webkit-scrollbar{width:4px}.custom-scrollbar::-webkit-scrollbar-track{background:transparent}.custom-scrollbar::-webkit-scrollbar-thumb{background:var(--wa-dark-teal);border-radius:10px}.wa-bubble-shadow{shadow:0 1px .5px rgba(11,20,26,.13)}.animate-in{animation:fadeIn .5s ease-out forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}