/* Chat UI Styles */
        .chat-container {
            display: flex;
            flex-direction: column;
            height: calc(100vh - 250px);
            background: var(--bg-secondary);
            border-radius: 8px;
            padding: 20px;
            border: 1px solid var(--border);
        }

        .chat-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }

        .chat-avatar-large {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            object-fit: cover;
        }

        .chat-header div {
            flex: 1;
        }

        .chat-header h2 {
            margin: 0;
            font-size: 24px;
            font-weight: 600;
            color: var(--text);
        }

        .chat-subtitle {
            margin: 4px 0 0 0;
            font-size: 14px;
            color: var(--text-light);
        }

        .chat-messages {
            flex: 1;
            overflow-y: auto;
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 16px;
            border: 1px solid var(--border);
            border-radius: 6px;
            background: var(--bg);
        }

        .message {
            display: flex;
            gap: 12px;
            max-width: 85%;
            word-wrap: break-word;
        }

        .message-user {
            align-self: flex-end;
            flex-direction: row-reverse;
        }

        .message-assistant {
            align-self: flex-start;
        }

        .message-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
            flex-shrink: 0;
        }

        .message-content {
            background: var(--primary);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 12px 16px;
            word-wrap: break-word;
            overflow-wrap: break-word;
        }

        .message-user .message-content {
            background: var(--accent);
            color: var(--bg);
            border-color: var(--accent);
        }

        .message-text {
            font-size: 14px;
            line-height: 1.6;
        }

        /* Markdown formatting styles */
        .message-text h1,
        .message-text h2,
        .message-text h3,
        .message-text h4,
        .message-text h5,
        .message-text h6 {
            margin: 16px 0 8px 0;
            font-weight: 600;
            line-height: 1.4;
        }

        .message-text h1 { font-size: 20px; }
        .message-text h2 { font-size: 18px; }
        .message-text h3 { font-size: 16px; }
        .message-text h4 { font-size: 15px; }
        .message-text h5 { font-size: 14px; }
        .message-text h6 { font-size: 13px; }

        .message-text p {
            margin: 8px 0;
        }

        .message-text ul,
        .message-text ol {
            margin: 12px 0;
            padding-left: 24px;
        }

        .message-text li {
            margin: 6px 0;
        }

        .message-text strong {
            font-weight: 600;
        }

        .message-text em {
            font-style: italic;
        }

        .message-text code {
            background: var(--bg);
            padding: 2px 6px;
            border-radius: 3px;
            font-family: 'Courier New', monospace;
            font-size: 13px;
        }

        .message-text pre {
            background: var(--bg);
            padding: 12px;
            border-radius: 6px;
            overflow-x: auto;
            margin: 8px 0;
        }

        .message-text pre code {
            background: none;
            padding: 0;
            font-size: 12px;
        }

        .chat-input-container {
            display: flex;
            gap: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .chat-input {
            flex: 1;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: 6px;
            background: var(--bg);
            color: var(--text);
            font-family: inherit;
            font-size: 14px;
            resize: none;
            max-height: 120px;
            transition: border-color 0.2s;
        }

        .chat-input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
        }

        .chat-send-btn {
            padding: 12px 24px;
            background: var(--accent);
            color: var(--bg);
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.2s;
            white-space: nowrap;
        }

        .chat-send-btn:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }

        .chat-send-btn:active {
            transform: translateY(0);
        }

        .typing-indicator {
            display: flex;
            gap: 4px;
        }

        .typing-indicator span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--text-light);
            animation: typing 1.4s infinite;
        }

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

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

        @keyframes typing {
            0%, 60%, 100% { opacity: 0.3; }
            30% { opacity: 1; }
        }

        .chat-error {
            padding: 12px;
            background: var(--danger);
            color: white;
            border-radius: 8px;
            font-size: 14px;
            border: 1px solid rgba(220, 38, 38, 0.5);
        }

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

        .chat-messages::-webkit-scrollbar-track {
            background: var(--bg);
            border-radius: 4px;
        }

        .chat-messages::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }

        .chat-messages::-webkit-scrollbar-thumb:hover {
            background: var(--text-light);
        }