/* Animação do cursor a piscar */
.blinking-cursor {
    display: inline-block;
    width: 8px;
    height: 1.1rem;
    background-color: #1f2937;
    animation: blink 1s step-end infinite;
    vertical-align: bottom;
}

@keyframes blink {
    from, to { background-color: transparent; }
    50% { background-color: #1f2937; }
}

/* Oculta a barra de rolagem mas permite rolar */
#chat-window::-webkit-scrollbar { display: none; }
#chat-window { -ms-overflow-style: none; scrollbar-width: none; }

/* Estilos para o botão de copiar que aparece no hover */
.message-bubble {
    position: relative;
}
.copy-button {
    position: absolute;
    top: -8px;
    right: -8px;
    opacity: 0;
    transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
    transform: scale(0.8);
}
.message-bubble:hover .copy-button {
    opacity: 1;
    transform: scale(1);
}