:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --secondary: #4b5563;
            --accent: #0e7490;
            --surface: #ffffff;
            --surface-dark: #111827;
            --gradient-start: #667eea;
            --gradient-end: #764ba2;
            --success: #10b981;
            --warning: #f59e0b;
            --error: #ef4444;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            transition: background 0.5s ease;
        }
        
        .dark body {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
        }
        
        .container {
            width: 100vw;
            height: 100vh;
            display: flex;
            flex-direction: column;
            padding: 1rem;
            gap: 1rem;
        }

        /* Hamburger Menu Styles */
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 5px;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background: #333;
            margin: 3px 0;
            transition: 0.3s;
        }

        .dark .hamburger span {
            background: #fff;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(-45deg) translate(-5px, 6px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(45deg) translate(-5px, -6px);
        }

        /* Header Styles */
        header {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(20px);
            border-radius: 16px;
            padding: 0.5rem 1.5rem;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: all 0.3s ease;
        }

        .dark header {
            background: rgba(17, 24, 39, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        
        .header-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .logo-container {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .logo-container a {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            transition: transform 0.3s ease;
            border-radius: 12px;
            padding: 4px 8px;
        }

        .logo-container a:hover {
            transform: translateY(-3px);
        }

        .logo-img {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .logo-container a:hover .logo-img {
            transform: rotate(-5deg) scale(1.05);
        }
        
        .title-container h1 {
            font-size: 1.75rem;
            font-weight: 700;
            color: #1f2937;
            margin-bottom: 0.25rem;
        }
        
        .dark .title-container h1 {
            color: #f9fafb;
        }
        
        .title-container p {
            font-size: 0.875rem;
            color: #6b7280;
            margin-left: 10px;
        }
        
        .dark .title-container p {
            color: #d1d5db;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        /* Navigation Links */
        .nav-links {
            display: flex;
            gap: 30px;
            margin-right: 50px;
        }

        .nav-links a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s;
        }

        .dark .nav-links a {
            color: #f9fafb;
        }

        .nav-links a:hover {
            color: #9333ea;
        }

        /* Mobile Navigation Overlay */
        .nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            z-index: 1000;
        }

        .nav-overlay.active {
            display: block;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            right: -300px;
            width: 300px;
            height: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            padding: 2rem;
            transition: right 0.3s ease;
            z-index: 1001;
        }

        .dark .mobile-nav {
            background: rgba(17, 24, 39, 0.95);
        }

        .mobile-nav.active {
            right: 0;
        }

        .mobile-nav a {
            display: block;
            padding: 1rem 0;
            text-decoration: none;
            color: #333;
            font-weight: 500;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }

        .dark .mobile-nav a {
            color: #f9fafb;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-nav a:hover {
            color: #9333ea;
        }
        
        .icon-btn {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(243, 244, 246, 0.8);
            color: #4b5563;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
        }
        
        .dark .icon-btn {
            background: rgba(55, 65, 81, 0.8);
            color: #d1d5db;
        }

        .icon-btn:hover {
            background: rgba(229, 231, 235, 0.9);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .dark .icon-btn:hover {
            background: rgba(75, 85, 99, 0.9);
        }
        
        /* Main Content Area */
        .main-content {
            display: flex;
            flex: 1;
            gap: 1rem;
            overflow: hidden;
        }
        
        /* Sidebar Styles */
        .sidebar {
            width: 280px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.3);
            overflow-y: auto;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .dark .sidebar {
            background: rgba(17, 24, 39, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        
        .sidebar-section {
            margin-bottom: 2rem;
        }
        
        .sidebar-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: #1f2937;
            margin-bottom: 1rem;
        }
        
        .dark .sidebar-title {
            color: #f9fafb;
        }
        
        .conversation-item {
            padding: 0.75rem;
            border-radius: 12px;
            margin-bottom: 0.5rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        
        .conversation-item.active {
            background: rgba(59, 130, 246, 0.1);
            border-left: 3px solid var(--primary);
        }
        
        .conversation-item:hover:not(.active) {
            background: rgba(243, 244, 246, 0.8);
        }
        
        .dark .conversation-item:hover:not(.active) {
            background: rgba(55, 65, 81, 0.8);
        }
        
        .conversation-name {
            font-weight: 500;
            font-size: 0.875rem;
            color: #374151;
            margin-bottom: 0.25rem;
        }
        
        .dark .conversation-name {
            color: #e5e7eb;
        }
        
        .conversation-time {
            font-size: 0.75rem;
            color: #9ca3af;
        }
        
        .tool-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem;
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.2s ease;
            margin-bottom: 0.5rem;
            text-decoration: none;
            color: inherit;
        }
        
        .tool-item:hover {
            background: rgba(243, 244, 246, 0.8);
        }
        
        .dark .tool-item:hover {
            background: rgba(55, 65, 81, 0.8);
        }
        
        .tool-icon {
            color: #6b7280;
            font-size: 18px;
        }
        
        .dark .tool-icon {
            color: #d1d5db;
        }
        
        .tool-name {
            font-size: 0.875rem;
            color: #374151;
        }
        
        .dark .tool-name {
            color: #e5e7eb;
        }
        
        /* Chat Area Styles */
        .chat-area {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 1rem;
            min-width: 0;
        }
        
        .suggestions-container {
            display: flex;
            gap: 0.75rem;
            overflow-x: auto;
            padding-bottom: 0.5rem;
        }
        
        .suggestion-chip {
            padding: 0.75rem 1.25rem;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 500;
            color: #4b5563;
            border: 1px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
        }

        /* Scrollbar Styling for Suggestions */
        .suggestions-container::-webkit-scrollbar {
        height: 3px;             
        }

        .suggestions-container::-webkit-scrollbar-track {
        background: transparent;  /* 👈 track invisible */
        }

        .suggestions-container::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.097);  /* हल्का transparent */
        border-radius: 1px;
        }

        .suggestions-container::-webkit-scrollbar-thumb:hover {
        background: rgba(0, 0, 0, 0.119); /* hover पर थोड़ा गहरा */
        }

        /* Firefox support */
        .suggestions-container {
        scrollbar-width: thin;
        scrollbar-color: rgba(0,0,0,0.2) transparent;
        }

        
        .dark .suggestion-chip {
            background: rgba(17, 24, 39, 0.9);
            color: #d1d5db;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .suggestion-chip:hover {
            background: rgba(59, 130, 246, 0.1);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .chats-container {
            flex: 1;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-radius: 16px;
            padding: 1.5rem;
            overflow-y: auto;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.3);
            display: flex;
            flex-direction: column;
            margin-top: -10px;
        }
        
        .dark .chats-container {
            background: rgba(17, 24, 39, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            color: white;
        }
        
        .message-enter {
            display: flex;
            margin-bottom: 1.5rem;
            animation: messageEnter 0.4s ease-out;
        }
        
        .message-enter.justify-end {
            justify-content: flex-end;
        }
        
        .message-enter.justify-start {
            justify-content: flex-start;
        }
        
        .message-container {
            display: flex;
            max-width: 85%;
            gap: 12px;
        }
        
        .message-container.user {
            flex-direction: row-reverse;
            margin-left: auto;
        }
        
        .avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 4px;
        }
        
        .avatar.user {
            background-color: #2563eb;
        }
        
        .avatar.bot {
            background-color: #dbeafe;
        }
        
        .dark .avatar.bot {
            background-color: #1e3a8a;
        }
        
        .icon {
            font-size: 14px;
        }
        
        .icon.user {
            color: white;
        }
        
        .icon.bot {
            color: #2563eb;
        }
        
        .dark .icon.bot {
            color: #93c5fd;
        }
        
        .message-bubble {
            padding: 12px 16px;
            border-radius: 16px;
        }
        
        .message-bubble.user {
            background-color: #2563eb;
            color: white;
            border-top-right-radius: 4px;
        }
        
        .message-bubble.bot {
            background-color: #f3f4f6;
            color: #1f2937;
            border-top-left-radius: 4px;
        }
        
        .dark .message-bubble.bot {
            background-color: #1f2937;
            color: #e5e7eb;
        }
        
        .typing {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        
        .typing-dot {
            width: 4px;
            height: 4px;
            background-color: currentColor;
            border-radius: 50%;
            animation: typingBlink 1.2s infinite ease-in-out;
        }
        
        .typing-dot:nth-child(2) {
            animation-delay: 0.2s;
        }
        
        .typing-dot:nth-child(3) {
            animation-delay: 0.4s;
        }
        
        /* Input Area Styles */
        .input-area {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(20px);
            border-radius: 16px;
            padding: 1.25rem;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        
        .dark .input-area {
            background: rgba(17, 24, 39, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        
        .prompt-form {
            display: flex;
            gap: 0.75rem;
        }
        
        .input-container {
            flex: 1;
            position: relative;
        }
        
        .prompt-input {
            width: 100%;
            padding: 1rem 3.5rem 1rem 1.25rem;
            border-radius: 12px;
            border: 1px solid rgba(209, 213, 219, 0.8);
            background: rgba(249, 250, 251, 0.8);
            font-size: 0.95rem;
            color: #1f2937;
            transition: all 0.2s ease;
        }
        
        .dark .prompt-input {
            background: rgba(31, 41, 55, 0.8);
            border: 1px solid rgba(75, 85, 99, 0.8);
            color: #f9fafb;
        }
        
        .prompt-input:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
        }
        
        .input-actions {
            position: absolute;
            right: 0.75rem;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            gap: 0.5rem;
        }
        
        .input-action-btn {
            background: none;
            border: none;
            color: #6b7280;
            cursor: pointer;
            padding: 0.25rem;
            border-radius: 6px;
            transition: all 0.2s ease;
        }
        
        .input-action-btn:hover {
            background: rgba(0, 0, 0, 0.05);
            color: #374151;
        }
        
        .dark .input-action-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #d1d5db;
        }
        
        .send-btn {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: linear-gradient(90deg, #eb5025, #9333ea);
            border: none;
            color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
        }
        
        .send-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(59, 130, 246, 0.4);
        }
        
        .send-btn:active {
            transform: translateY(0);
        }
        
        .disclaimer {
            font-size: 12px;
            color: #888;
            text-align: center;
            margin-top: 20px;
            line-height: 1.4;
            font-family: Arial, sans-serif;
        }
        
        .dark .disclaimer {
            color: #9ca3af;
        }
        
        .company-link {
            background: linear-gradient(90deg, #eb5025, #9333ea);
            -webkit-background-clip: text;  
            -webkit-text-fill-color: #555;  
            text-decoration: none;
            font-weight: 500;
            cursor: pointer;
            transition: 0.3s;
        }
        
        .company-link:hover {
            -webkit-text-fill-color: transparent; 
        }
        
        /* Animations */
        @keyframes messageEnter {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes typingBlink {
            0%, 80%, 100% { 
                opacity: 0.2; 
            }
            40% { 
                opacity: 1; 
            }
        }
        
        /* Scrollbar Styles */
        ::-webkit-scrollbar {
            width: 6px;
        }
        
        ::-webkit-scrollbar-track {
            background: rgba(0, 0, 0, 0.05);
            border-radius: 3px;
        }
        
        ::-webkit-scrollbar-thumb {
            background: rgba(0, 0, 0, 0.2);
            border-radius: 3px;
        }
        
        .dark ::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
        }
        
        .dark ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
        }
        
        /* Responsive Design */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            
            .hamburger {
                display: flex;
            }
            
            .mobile-nav {
                display: block;
            }
            
            .sidebar {
                width: 240px;
            }
        }
        
        @media (max-width: 768px) {
            .container {
                padding: 0.5rem;
                gap: 0.5rem;
            }
            
            .header-content {
                flex-wrap:nowrap;
                gap: 1rem;
            }
            
            .title-container h1 {
                font-size: 1.25rem;
            }
            
            .title-container p {
                font-size: 0.75rem;
            }
            
            .main-content {
                flex-direction: column;
                gap: 0.5rem;
            }
            
            .sidebar {
                position: fixed;
                top: 0;
                left: -100%;
                width: 85%;
                height: 100vh;
                z-index: 1000;
                transition: left 0.3s ease;
                overflow-y: auto;
            }
            
            .sidebar.active {
                left: 0;
            }
            
            .sidebar-overlay {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.5);
                z-index: 999;
            }
            
            .sidebar-overlay.active {
                display: block;
            }
            
            .chat-area {
                flex: 1;
                min-height: 0;
            }
            
            .chats-container {
                flex: 1;
                min-height: 300px;
                max-height: calc(100vh - 300px);
            }
            
            .message-container {
                max-width: 95%;
            }
            
            .suggestions-container {
                flex-wrap: nowrap;
                overflow-x: auto;
            }
            
            .prompt-form {
                flex-direction: row;
                gap: 0.5rem;
            }
            
            .prompt-input {
                font-size: 10px; /* Prevents zoom on iOS */
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 0.25rem;
            }
            
            .header-content {
                padding: 0.5rem;
            }
            
            .logo-img {
                width: 40px;
                height: 40px;
            }
            
            .title-container h1 {
                font-size: 1rem;
            }
            
            .title-container p {
                display: none;
            }
            
            .chats-container {
                padding: 1rem;
            }
            
            .input-area {
                padding: 1rem;
            }
            
            .send-btn {
                width: 44px;
                height: 44px;
            }
            .icon-btn {
                width: 19px;
                height: 1px;
            }
            .disclaimer {
                font-size: 10px;
            }
        }

        /* Sidebar Toggle Button for Mobile */
        .sidebar-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(243, 244, 246, 0.8);
            color: #4b5563;
            border: none;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }
        
        .dark .sidebar-toggle {
            background: rgba(55, 65, 81, 0.8);
            color: #d1d5db;
        }
        
        @media (max-width: 768px) {
            .sidebar-toggle {
                display: flex;
            }
        }