/* Custom scrollbar for chat */
#chat-container::-webkit-scrollbar {
    width: 6px;
}

#chat-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

#chat-container::-webkit-scrollbar-thumb {
    background: #c7d2fe;
    border-radius: 10px;
}

#chat-container::-webkit-scrollbar-thumb:hover {
    background: #a5b4fc;
}

/* Animation for new messages */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .chat-header {
        padding: 12px;
    }
    
    .message-input {
        padding: 12px;
    }
}