/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1f2937;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #4b5563;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

/* Chat message animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-message {
    animation: fadeIn 0.3s ease-out forwards;
}

/* Input focus effects */
input:focus {
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.5);
}

/* Button transitions */
button {
    transition: all 0.2s ease;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .chat-container {
        padding: 0.75rem;
    }
    
    .message-input {
        padding: 0.5rem 1rem;
    }
}