@keyframes fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

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

::-webkit-scrollbar-track {
    background: #2a2b32;
}

::-webkit-scrollbar-thumb {
    background: #40414f;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #565869;
}

/* Text selection */
::selection {
    background: rgba(16, 163, 127, 0.3);
}

/* Smooth transitions */
* {
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    #chat-container {
        padding: 0 1rem;
    }
}