/* ====================================
   CHATBOT IA - STYLES
   ==================================== */

/* Bouton flottant */
.chat-bubble {
    position: fixed;
    bottom: 80px;
    right: 20px;
    z-index: 1000;
}

.btn-chat {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-chat:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-chat:active {
    transform: translateY(-1px);
}

.help-badge {
    background: rgba(255, 255, 255, 0.3);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
}

/* Modal chat */
#modal-chat {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

#modal-chat.show {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.chat-container {
    background: white;
    width: 90%;
    max-width: 500px;
    height: 600px;
    max-height: 80vh;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.btn-close-chat {
    background: none;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.btn-close-chat:hover {
    background: rgba(255, 255, 255, 0.2);
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: #f5f5f5;
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 3px;
}

.message {
    margin-bottom: 15px;
    padding: 12px 15px;
    border-radius: 12px;
    max-width: 85%;
    animation: messageAppear 0.3s ease;
    word-wrap: break-word;
}

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

.message-user {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    margin-left: auto;
    text-align: right;
    border-bottom-right-radius: 4px;
}

.message-assistant {
    background: white;
    color: #333;
    border: 1px solid #e0e0e0;
    margin-right: auto;
    border-bottom-left-radius: 4px;
}

.message-assistant::before {
    content: "🤖 ";
    font-size: 14px;
}

.message-system {
    background: #e3f2fd;
    color: #1976d2;
    text-align: center;
    font-size: 14px;
    padding: 10px;
    margin: 10px auto;
    border-radius: 8px;
    max-width: 90%;
}

.chat-loading {
    text-align: center;
    padding: 15px;
    color: #999;
    font-style: italic;
}

.chat-loading::before {
    content: "💭 ";
}

.typing-indicator {
    display: inline-flex;
    gap: 4px;
    padding: 10px 15px;
    background: white;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: #667eea;
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

.chat-input-zone {
    padding: 15px;
    border-top: 1px solid #e0e0e0;
    background: white;
    border-radius: 0 0 15px 15px;
}

.chat-input-zone textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    resize: none;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s;
}

.chat-input-zone textarea:focus {
    outline: none;
    border-color: #667eea;
}

.chat-input-zone button {
    margin-top: 10px;
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.chat-input-zone button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.chat-input-zone button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Responsive */
@media (max-width: 600px) {
    .chat-container {
        width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }
    
    .chat-header {
        border-radius: 0;
    }
    
    .chat-input-zone {
        border-radius: 0;
    }
}