body {
    font-family: 'Inter', sans-serif;
    background-color: #f0f4f8; 
}
.chat-container::-webkit-scrollbar {
    width: 8px;
}
.chat-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
.chat-container::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}
.chat-container::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}
.fade-in-slide-up {
    animation: fadeInSlideUp 0.5s ease-in-out;
}
@keyframes fadeInSlideUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}