<style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            margin:0;
            padding:0;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            background-color: #f5f5f5;
            color: #333;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        body.dark-mode {
            background-color: #1a1a1a;
            color: #e5e5e5;
        }

        /* Header */
        header {
            background-color: #ffd000;
            padding: 15px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
            transition: box-shadow 0.3s ease;
        }

        body.dark-mode header {
            box-shadow: 0 4px 10px rgba(255, 255, 255, 0.49);
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .menu-toggle {
            font-size: 24px;
            cursor: pointer;
            background: none;
            border: none;
            display: none;
        }

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #333;
        }

        .theme-toggle {
            font-size: 20px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 5px 10px;
        }

        .search-container {
            flex: 0.5;
            width: 300px;
            position: center;

        }

        .search-container input {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 25px;
            font-size: 14px;
            background-color: #f9f9f9;
            position: center;
            box-shadow: 0 5px 5px rgba(0, 0, 0, 0.26);
        }

        .header-icons {
            display: flex;
            gap: 30px;
            align-items: center;
            font-size: 13px;
            flex: 0;
        }

        .header-icons div {
            display: flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            text-align: center;
            color: #333;
        }

        /* Sidebar Menu */
        .sidebar {
            position: fixed;
            left: -250px;
            top: 0;
            width: 250px;
            height: 100vh;
            background-color: #fff;
            border-right: 1px solid #ddd;
            transition: left 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
            z-index: 200;
            padding-top: 60px;
            overflow-y: auto;
        }

        body.dark-mode .sidebar {
            background-color: #2d2d2d;
            border-right-color: #444;
        }

        .sidebar.active {
            left: 0;
        }

        .sidebar-menu {
            list-style: none;
            padding: 20px 0;
        }

        .sidebar-menu li {
            padding: 0;
            border-bottom: 1px solid #f0f0f0;
            transition: background-color 0.2s, color 0.3s ease, border-color 0.3s ease;
        }

        .sidebar-menu li a {
            display: block;
            padding: 15px 20px;
            color: #333;
            text-decoration: none;
            cursor: pointer;
            transition: background-color 0.2s, color 0.3s ease;
        }

        body.dark-mode .sidebar-menu li a {
            color: #e5e5e5;
        }

        .sidebar-menu li a:hover {
            background-color: #f9f9f9;
        }

        body.dark-mode .sidebar-menu li a:hover {
            background-color: #3d3d3d;
        }

        body.dark-mode .sidebar-menu li {
            border-bottom-color: #444;
            color: #e5e5e5;
        }

        .sidebar-menu li:hover {
            background-color: #f9f9f9;
        }

        body.dark-mode .sidebar-menu li:hover {
            background-color: #3d3d3d;
        }

        /* Left Navigation Sidebar */
        .left-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: 200px;
            height: 100vh;
            background-color: transparent;
            border-right: none;
            z-index: 90;
            padding-top: 120px;
            overflow-y: auto;
        }

        body.dark-mode .left-sidebar {
            background-color: transparent;
            border-right-color: transparent;
        }

        .sidebar-nav-menu {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-nav-menu li {
            padding: 0;
            border-bottom: none;
        }

        body.dark-mode .sidebar-nav-menu li {
            border-bottom-color: #444;
        }

        .sidebar-nav-menu li a {
            display: block;
            padding: 15px 20px;
            color: #333;
            text-decoration: none;
            cursor: pointer;
            transition: color 0.3s ease;
            border-bottom: none;
        }

        body.dark-mode .sidebar-nav-menu li a {
            color: #e5e5e5;
        }

        .sidebar-nav-menu li a:hover {
            color: #ffd000;
            text-decoration: underline;
        }

        body.dark-mode .sidebar-nav-menu li a:hover {
            color: #ffd000;
        }

        /* Main Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Carousel/Banner */
        .carousel {
            position: relative;
            margin: 60px 0 20px 0;
            background-color: #fff;
            border-radius: 10px;
            overflow: hidden;
            transition: background-color 0.3s ease;
        }

        body.dark-mode .carousel {
            background-color: #2d2d2d;
        }

        .carousel-wrapper {
            display: flex;
            transition: transform 0.3s ease;
            position: relative;
        }

        .carousel-slide {
            min-width: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: #f0f0f0;
            min-height: 250px;
            color: #999;
            font-size: 18px;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        body.dark-mode .carousel-slide {
            background-color: #2d2d2d;
            color: #a0a0a0;
        }

        .carousel-dots {
            display: flex;
            justify-content: center;
            gap: 6px;
            padding: 15px 0;
            background-color: #fff;
            transition: background-color 0.3s ease;
        }

        body.dark-mode .carousel-dots {
            background-color: #2d2d2d;
        }

        .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #ddd;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        body.dark-mode .dot {
            background-color: #555;
        }

        .dot.active {
            background-color: #333;
        }

        body.dark-mode .dot.active {
            background-color: #e5e5e5;
        }

        /* Carousel Navigation Buttons */
        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background-color: rgba(0, 0, 0, 0.5);
            color: white;
            border: none;
            font-size: 24px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.3s, transform 0.2s;
            z-index: 10;
            opacity: 0.75;
        }

        .carousel-btn:hover {
            background-color: rgba(0, 0, 0, 0.8);
            transform: translateY(-50%) scale(1.1);
        }

        .carousel-btn-left {
            left: 15px;
        }

        .carousel-btn-right {
            right: 15px;
        }

        .carousel-thumbnail {
            position: absolute;
            right: 20px;
            top: 20px;
            width: 120px;
            height: 120px;
            background-color: #f0f0f0;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #999;
            font-size: 14px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        body.dark-mode .carousel-thumbnail {
            background-color: #404040;
            color: #a0a0a0;
        }

        /* Categories Section */
        .categories-section {
            margin: 30px 0;
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .section-header h2 {
            font-size: 36px;
            color: #333;
            transition: color 0.3s ease;
        }

        body.dark-mode .section-header h2 {
            color: #e5e5e5;
        }

        .see-all {
            color: #999;
            font-size: 14px;
            cursor: pointer;
            transition: color 0.2s;
        }

        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }

        .categories-grid a {
            text-decoration: none;
        }

        .category-item-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        .category-item {
            background-color: #f0f0f0;
            border-radius: 10px;
            padding: 40px 20px;
            text-align: center;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s, background-color 0.3s ease, color 0.3s ease;
            color: #999;
            font-size: 18px;
            min-height: 150px;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
        }

        body.dark-mode .category-item {
            background-color: #2d2d2d;
            color: #a0a0a0;
        }

        .category-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .category-label {
            font-size: 18px;
            color: #333;
            font-weight: 500;
            text-align: center;
            transition: color 0.3s ease;
        }

        body.dark-mode .category-label {
            color: #e5e5e5;
        }

        /* Chat Container */
        .chat-container {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 999;
            font-family: inherit;
        }

        /* Chat Icon */
        .chat-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: transparent;
            color: #333;
            border: 2px solid #333;
            font-size: 40px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s;
            z-index: 50;
        }

        body.dark-mode .chat-icon {
            border-color: #e5e5e5;
            color: #e5e5e5;
        }

        .chat-icon:hover {
            transform: scale(1.1);
        }

        .chat-icon.active {
            display: none;
        }

        /* Chat List */
        .chat-list {
            position: absolute;
            bottom: 80px;
            right: 0;
            width: 320px;
            height: 500px;
            background-color: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            display: flex;
            flex-direction: column;
            opacity: 0;
            transform: scale(0.95);
            pointer-events: none;
            transition: opacity 0.3s ease, transform 0.3s ease;
            z-index: 1000;
        }

        body.dark-mode .chat-list {
            background-color: #2d2d2d;
        }

        .chat-list.active {
            opacity: 1;
            transform: scale(1);
            pointer-events: auto;
        }

        .chat-list-header {
            padding: 16px;
            border-bottom: 1px solid #e0e0e0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        body.dark-mode .chat-list-header {
            border-bottom-color: #444;
        }

        .chat-list-header h3 {
            font-size: 16px;
            font-weight: 600;
        }

        .close-btn {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #666;
            transition: color 0.2s ease;
        }

        body.dark-mode .close-btn {
            color: #aaa;
        }

        .close-btn:hover {
            color: #333;
        }

        body.dark-mode .close-btn:hover {
            color: #e5e5e5;
        }

        .chat-history {
            flex: 1;
            overflow-y: auto;
            padding: 8px 0;
        }

        .chat-history-item {
            padding: 12px 16px;
            border-bottom: 1px solid #f0f0f0;
            cursor: pointer;
            transition: background-color 0.2s ease;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        body.dark-mode .chat-history-item {
            border-bottom-color: #3d3d3d;
        }

        .chat-history-item:hover {
            background-color: #f5f5f5;
        }

        body.dark-mode .chat-history-item:hover {
            background-color: #3d3d3d;
        }

        .chat-history-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            flex-shrink: 0;
        }

        .chat-history-info {
            flex: 1;
            min-width: 0;
        }

        .chat-history-name {
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 2px;
        }

        .chat-history-preview {
            font-size: 12px;
            color: #999;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        body.dark-mode .chat-history-preview {
            color: #a0a0a0;
        }

        /* Chat Window */
        .chat-window {
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 380px;
            height: 600px;
            background-color: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            display: flex;
            flex-direction: column;
            opacity: 0;
            transform: scale(0.95) translateY(20px);
            pointer-events: none;
            transition: opacity 0.3s ease, transform 0.3s ease;
            z-index: 1000;
        }

        body.dark-mode .chat-window {
            background-color: #2d2d2d;
        }

        .chat-window.active {
            opacity: 1;
            transform: scale(1) translateY(0);
            pointer-events: auto;
        }

        .chat-window-header {
            padding: 16px;
            border-bottom: 1px solid #e0e0e0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        body.dark-mode .chat-window-header {
            border-bottom-color: #444;
        }

        .chat-window-header-info {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
        }

        .chat-window-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
        }

        .chat-window-name {
            font-weight: 600;
            font-size: 14px;
        }

        .chat-messages {
            flex: 1;
            overflow-y: auto;
            padding: 16px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .message {
            display: flex;
            gap: 8px;
            animation: slideIn 0.3s ease;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .message.sent {
            justify-content: flex-end;
        }

        .message-bubble {
            max-width: 85%;
            min-width: 60px;
            padding: 10px 14px;
            border-radius: 18px;
            font-size: 13px;
            line-height: 1.4;
            word-wrap: break-word;
            overflow-wrap: break-word;
            word-break: break-word;
            white-space: normal;
        }

        .message.received .message-bubble {
            background-color: #e5e5e5;
            color: #333;
        }

        body.dark-mode .message.received .message-bubble {
            background-color: #404040;
            color: #e5e5e5;
        }

        .message.sent .message-bubble {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }

        .message-time {
            font-size: 11px;
            color: #999;
            margin-top: 4px;
            text-align: right;
        }

        body.dark-mode .message-time {
            color: #a0a0a0;
        }

        .message.sent .message-time {
            text-align: right;
        }

        .message.received .message-time {
            text-align: left;
        }

        .chat-input-area {
            padding: 12px 16px;
            border-top: 1px solid #e0e0e0;
            display: flex;
            gap: 8px;
        }

        body.dark-mode .chat-input-area {
            border-top-color: #444;
        }

        .chat-input {
            flex: 1;
            border: 1px solid #e0e0e0;
            border-radius: 20px;
            padding: 10px 14px;
            font-size: 13px;
            font-family: inherit;
            resize: none;
            transition: border-color 0.2s ease;
        }

        body.dark-mode .chat-input {
            background-color: #404040;
            border-color: #555;
            color: #e5e5e5;
        }

        .chat-input:focus {
            outline: none;
            border-color: #667eea;
        }

        .send-btn {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: transform 0.2s ease;
        }

        .send-btn:hover {
            transform: scale(1.05);
        }

        .send-btn:active {
            transform: scale(0.95);
        }

        /* Scrollbar styling */
        .chat-history::-webkit-scrollbar,
        .chat-messages::-webkit-scrollbar {
            width: 6px;
        }

        .chat-history::-webkit-scrollbar-track,
        .chat-messages::-webkit-scrollbar-track {
            background: transparent;
        }

        .chat-history::-webkit-scrollbar-thumb,
        .chat-messages::-webkit-scrollbar-thumb {
            background: #ddd;
            border-radius: 3px;
        }

        body.dark-mode .chat-history::-webkit-scrollbar-thumb,
        body.dark-mode .chat-messages::-webkit-scrollbar-thumb {
            background: #555;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-icons {
                flex-wrap: wrap;
                gap: 10px;
                font-size: 12px;
            }

            .header-icons div {
                gap: 4px;
            }

            .carousel-thumbnail {
                width: 100px;
                height: 100px;
                right: 10px;
                top: 10px;
            }

            .categories-grid {
                grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
                gap: 15px;
            }

            .category-item {
                min-height: 120px;
                font-size: 14px;
            }
        }

        </style>