/* Floating Chat Button */
        .chat-fab {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 55px;
            height: 55px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: white
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);	
            transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);	
            z-index: 1000;
            border: none;
        }

        .chat-fab:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
        }

        .chat-fab svg {
            width: 28px;
            height: 28px;
            fill: white;
        }

        .chat-fab.open svg.icon-chat {
            display: none;
        }

        .chat-fab svg.icon-close {
            display: none;
        }

        .chat-fab.open svg.icon-close {
            display: block;
        }

        /* Unread Badge */
        .chat-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            background: #ef4444;
            color: white;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            font-size: 11px;
            font-weight: 600;
            display: none;
            align-items: center;
            justify-content: center;
        }

        .chat-badge.show {
            display: flex;
        }

        /* Chat Window */
        .chat-window {
            position: fixed;
            bottom: 80px;
            right: 24px;
            width: 420px;
            height: 300px;
            background: white;
            border-radius: 16px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
            display: none;
            flex-direction: column;
            overflow: hidden;
            z-index: 999;
            animation: slideUp 0.3s ease-out;
        }

        .chat-window.open {
            display: flex;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            .chat-window {
                bottom: 0;
                right: 0;
                left: 0;
                width: 100%;
                height: 100%;
                max-height: 100vh;
                border-radius: 0;
            }

            .chat-fab {
                bottom: 20px;
                right: 20px;
            }
        }

        /* Chat Header */
        .chat-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .chat-header-content {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .chat-header h3 {
            margin: 0;
            font-size: 14px;
            font-weight: 600;
        }

        .chat-header-subtitle {
            font-size: 10px;
            opacity: 0.9;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: #4ade80;
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        .minimize-btn {
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 4px;
            opacity: 0.8;
            transition: opacity 0.2s;
        }

        .minimize-btn:hover {
            opacity: 1;
        }

        /* Chat Messages */
        .chat-messages {
            flex: 1;
            overflow-y: auto;
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            background: #fafafa;
        }

        .message {
            display: flex;
            gap: 8px;
            animation: slideIn 0.3s ease-out;
        }

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

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

        .message-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 10px;
            flex-shrink: 0;
        }

        .message.user .message-avatar {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }

        .message.bot .message-avatar {
            background: #e5e7eb;
            color: #6b7280;
        }

        .message-content {
            max-width: 75%;
            padding: 10px 14px;
            border-radius: 12px;
            line-height: 1.4;
            font-size: 12px;
        }

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

        .message.bot .message-content {
            background: white;
            color: #1f2937;
            border-bottom-left-radius: 4px;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
        }

        /* Markdown styles */
        .message-content strong { font-weight: 600; }
        .message-content em { font-style: italic; }
        .message-content code {
            background: #e5e7eb;
            padding: 2px 5px;
            border-radius: 3px;
            font-family: monospace;
            font-size: 0.9em;
        }
        .message.user .message-content code {
            background: rgba(255, 255, 255, 0.2);
        }
        .message-content pre {
            background: #1f2937;
            color: #f9fafb;
            padding: 10px;
            border-radius: 6px;
            overflow-x: auto;
            margin: 6px 0;
        }
        .message-content pre code {
            background: transparent;
            padding: 0;
        }
        .message-content ul, .message-content ol {
            margin: 6px 0;
            padding-left: 20px;
        }
        .message-content li { margin: 3px 0; }
        .message-content a {
            color: #667eea;
            text-decoration: underline;
        }
        .message.user .message-content a { color: #fff; }

        /* Typing Indicator */
        .typing-indicator {
            display: none;
            gap: 4px;
            padding: 10px 14px;
            background: white;
            border-radius: 12px;
            width: fit-content;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
        }

        .typing-indicator.active {
            display: flex;
        }

        .typing-dot {
            width: 6px;
            height: 6px;
            background: #9ca3af;
            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); }
            30% { transform: translateY(-8px); }
        }

        /* Chat Input */
        .chat-input-container {
            padding: 12px 16px;
            background: white;
            border-top: 1px solid #e5e7eb;
        }

        .chat-input-wrapper {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .chat-input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid #e5e7eb;
            border-radius: 20px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
            font-family: inherit;
        }

        .chat-input:focus {
            border-color: #667eea;
        }

        .send-button {
            width: 40px;
            height: 40px;
            border: none;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s;
            flex-shrink: 0;
        }

        .send-button:hover:not(:disabled) {
            transform: scale(1.05);
        }

        .send-button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Scrollbar */
        .chat-messages::-webkit-scrollbar {
            width: 5px;
        }

        .chat-messages::-webkit-scrollbar-track {
            background: #f3f4f6;
        }

        .chat-messages::-webkit-scrollbar-thumb {
            background: #d1d5db;
            border-radius: 3px;
        }