body {
    background-color: hsl(120, 1%, 21%);
    color: hsl(120, 2%, 43%); /* Vert terminal */
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

#chat-container {
    width: 80%;
    max-width: 800px;
    height: 80vh;
    border: 2px solid #333;
    background: #121314;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 20px rgba(70, 71, 70, 0.2);
}

#chat-window {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    border-bottom: 1px solid #4c4f52;
}

.cursor {
    font-weight: bold;
    color: #00ff00;
}
@keyframes blink {
    50% { opacity: 0; }
}

.user-msg { color: #5dade2; margin-bottom: 15px; } /* Bleu pour l'utilisateur */
.ai-msg { color: #00ff00; margin-bottom: 15px; white-space: pre-wrap; } /* Vert pour l'IA */

#input-area {
    display: flex;
    padding: 10px;
    background: #121314;
}

#user-input {
    flex: 1;
    background: transparent;
    border: none;
    color: #00ff00;
    font-family: inherit;
    font-size: 16px;
    outline: none;
}

#send-btn {
    background: #00ff00;
    color: #131313;
    border: none;
    padding: 5px 15px;
    cursor: pointer;
    font-weight: bold;
}

/* Scrollbar style "Retro" */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: #333; }