/* Main CSS for IMsupporting.com Landing Page */

        /* Accessibility Utilities */
        .skip-link {
            position: absolute;
            left: -9999px;
            z-index: 999;
            padding: 1rem;
            background: #000;
            color: #fff;
            text-decoration: none;
        }

        .skip-link:focus {
            left: 50%;
            transform: translateX(-50%);
            top: 1rem;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

        /* Focus Visible Styles for Better Keyboard Navigation */
        *:focus-visible {
            outline: 3px solid #518AB4;
            outline-offset: 2px;
        }

        /* High Contrast Support */
        @media (prefers-contrast: high) {
            :root {
                --border-color: #000000;
            }
            
            [data-theme="dark"] {
                --border-color: #ffffff;
            }
        }

        /* Reduced Motion Support */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

        :root {
            --primary-color: #518AB4;
            --primary-dark: #518AB4;
            --secondary-color: #10b981;
            --accent-color: #f59e0b;
            --text-color: #1f2937;
            --text-light: #6b7280;
            --bg-color: #ffffff;
            --bg-secondary: #f8fafc;
            --border-color: #e5e7eb;
            --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
            --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            --gradient-secondary: linear-gradient(135deg, var(--secondary-color), #059669);
            --gradient-hero: linear-gradient(135deg, #518AB4 0%, #518AB4 100%);
        }

        [data-theme="dark"] {
            --text-color: #f9fafb;
            --text-light: #d1d5db;
            --bg-color: #111827;
            --bg-secondary: #1f2937;
            --border-color: #374151;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--bg-color);
            transition: all 0.3s ease;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        html {
            overflow-x: hidden;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        [data-theme="dark"] .navbar {
            background: rgba(17, 24, 39, 0.95);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--primary-color);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .theme-toggle {
            background: none;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            color: var(--text-color);
            transition: color 0.3s ease;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 0.5rem;
            font-weight: 600;
            text-decoration: none;
            display: inline-block;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: white;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-outline {
            border: 2px solid #2563eb;
            color: #1e40af;
            background: transparent;
        }

        .btn-outline:hover {
            background: #2563eb;
            color: white;
            border-color: #2563eb;
        }

        [data-theme="dark"] .btn-outline {
            border: 2px solid #60a5fa;
            color: #93c5fd;
        }

        [data-theme="dark"] .btn-outline:hover {
            background: #3b82f6;
            color: white;
            border-color: #3b82f6;
        }

        /* Hero Section (Main Top Area) */
        .hero {
            padding: 10rem 0 6rem;
            background: linear-gradient(135deg, #0c1e3e 0%, #1e3a5f 25%, #2563eb 50%, #3b82f6 75%, #60a5fa 100%);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(37, 99, 235, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 40% 60%, rgba(16, 185, 129, 0.3) 0%, transparent 50%);
            animation: gradientShift 8s ease-in-out infinite;
        }

        @keyframes gradientShift {

            0%,
            100% {
                transform: scale(1) rotate(0deg);
            }

            50% {
                transform: scale(1.1) rotate(5deg);
            }
        }

        .hero-content {
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 2rem;
            padding: 0.5rem 1rem;
            margin-bottom: 2rem;
            font-size: 0.875rem;
            font-weight: 500;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {

            0%,
            100% {
                opacity: 1;
            }

            50% {
                opacity: 0.8;
            }
        }

        .hero h1 {
            font-size: 4.5rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            line-height: 1.1;
            background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 50%, #c7d2fe 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 30px rgba(255, 255, 255, 0.5);
        }

        .hero .ai-text {
            background: linear-gradient(135deg, #10b981 0%, #06d6a0 50%, #f59e0b 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
        }

        .hero .ai-text::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(135deg, #10b981 0%, #06d6a0 50%, #f59e0b 100%);
            border-radius: 2px;
            animation: glow 2s ease-in-out infinite alternate;
        }

        @keyframes glow {
            from {
                box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
            }

            to {
                box-shadow: 0 0 20px rgba(16, 185, 129, 0.8), 0 0 30px rgba(245, 158, 11, 0.5);
            }
        }

        .hero .subtitle {
            font-size: 1.5rem;
            margin-bottom: 3rem;
            opacity: 0.95;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            font-weight: 400;
            line-height: 1.6;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 3rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: center;
        }

        .hero-stat .number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #10b981;
            display: block;
            margin-bottom: 0.25rem;
        }

        .hero-stat .label {
            font-size: 0.875rem;
            opacity: 0.8;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .hero-actions {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            margin-bottom: 4rem;
            flex-wrap: wrap;
        }

        .hero-demo {
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
        }

        .demo-container {
            display: grid;
            grid-template-columns: 500px 1fr;
            gap: 3rem;
            align-items: start;
        }

        .demo-window {
            background: #f5f5f5;
            border: 1px solid #ddd;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        [data-theme="dark"] .demo-window {
            background: #2d2d2d;
            border-color: #444;
        }

        .demo-header {
            padding: 0.75rem 1rem;
            background: linear-gradient(135deg, #199600, #147000);
            color: white;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .demo-header-content {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            font-size: 1rem;
        }

        .demo-header-actions {
            display: flex;
            gap: 0.5rem;
        }

        .demo-btn {
            background: transparent;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0.25rem;
            font-size: 1rem;
            opacity: 0.9;
            transition: opacity 0.2s;
        }

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

        .demo-subheader {
            background: #fff;
            padding: 0.75rem 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #e0e0e0;
        }

        [data-theme="dark"] .demo-subheader {
            background: #3a3a3a;
            border-bottom-color: #555;
        }

        .demo-username {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
            color: #333;
            font-size: 0.95rem;
        }

        [data-theme="dark"] .demo-username {
            color: #e0e0e0;
        }

        .demo-username::before {
            content: '💬';
            font-size: 1.1rem;
        }

        .demo-help-btn {
            background: #3b82f6;
            border: none;
            color: white;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: background 0.2s;
        }

        .demo-help-btn:hover {
            background: #2563eb;
        }

        .demo-dots {
            display: flex;
            gap: 0.5rem;
        }

        .demo-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #ef4444;
        }

        .demo-dot:nth-child(2) {
            background: #f59e0b;
        }

        .demo-dot:nth-child(3) {
            background: #10b981;
        }

        .demo-title {
            font-weight: 600;
            font-size: 0.875rem;
        }

        .demo-status {
            margin-left: auto;
            background: #10b981;
            color: white;
            padding: 0.25rem 0.75rem;
            border-radius: 1rem;
            font-size: 0.75rem;
            font-weight: 600;
            animation: pulse 2s infinite;
        }

        .demo-chat {
            padding: 1.5rem;
            min-height: 400px;
            max-height: 500px;
            overflow-y: auto;
            background: #fff;
            display: none;
            flex-direction: column;
            gap: 0.75rem;
        }

        .demo-chat.active {
            display: flex;
        }

        [data-theme="dark"] .demo-chat {
            background: #2d2d2d;
        }

        .demo-chat::-webkit-scrollbar {
            width: 8px;
        }

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

        [data-theme="dark"] .demo-chat::-webkit-scrollbar-track {
            background: #1a1a1a;
        }

        .demo-chat::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 4px;
        }

        [data-theme="dark"] .demo-chat::-webkit-scrollbar-thumb {
            background: #555;
        }

        .chat-message-wrapper {
            display: flex;
            flex-direction: column;
            margin-bottom: 0.5rem;
            animation: slideIn 0.5s ease-out;
        }

        /* AI Topic Message (Purple) */
        .ai-message .message-content {
            background: linear-gradient(135deg, #8b5cf6, #7c3aed);
            color: white;
            padding: 1rem 1.25rem;
            border-radius: 12px;
            text-align: center;
            font-weight: 500;
            align-self: center;
            max-width: 80%;
        }

        .message-topic {
            font-size: 0.95rem;
            line-height: 1.5;
        }

        /* Operator Messages (Right, White) */
        .operator-message {
            align-items: flex-end;
        }

        .operator-message .message-header {
            color: #3b82f6;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 0.25rem;
            padding-right: 0.5rem;
        }

        .operator-message .message-content {
            background: white;
            color: #333;
            padding: 0.75rem 1rem;
            border-radius: 18px 18px 4px 18px;
            max-width: 70%;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            border: 1px solid #e5e7eb;
        }

        [data-theme="dark"] .operator-message .message-content {
            background: #3a3a3a;
            color: #e0e0e0;
            border-color: #555;
        }

        [data-theme="dark"] .operator-message .message-header {
            color: #60a5fa;
        }

        /* User Messages (Left, Blue) */
        .user-message {
            align-items: flex-start;
        }

        .user-message .message-content {
            background: #3b82f6;
            color: white;
            padding: 0.75rem 1rem;
            border-radius: 18px 18px 18px 4px;
            max-width: 70%;
            align-self: flex-start;
        }

        /* AI Bot Messages (Right, Purple) */
        .ai-bot-message {
            align-items: flex-end;
        }

        .ai-bot-message .message-header {
            color: #8b5cf6;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 0.25rem;
            padding-right: 0.5rem;
            text-align: right;
            align-self: flex-end;
        }

        [data-theme="dark"] .ai-bot-message .message-header {
            color: #a78bfa;
        }

        .ai-bot-message .message-content {
            background: linear-gradient(135deg, #ede9fe, #ddd6fe);
            color: #5b21b6;
            padding: 0.85rem 1.1rem;
            border-radius: 18px 18px 4px 18px;
            max-width: 85%;
            line-height: 1.6;
            align-self: flex-end;
        }

        [data-theme="dark"] .ai-bot-message .message-content {
            background: linear-gradient(135deg, #4c1d95, #5b21b6);
            color: #e9d5ff;
        }

        /* Human Operator Messages (Teal/Green gradient) */
        .human-operator-message {
            align-items: flex-start;
        }

        .human-operator-message .message-header {
            color: #059669;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 0.25rem;
            padding-left: 0.5rem;
        }

        [data-theme="dark"] .human-operator-message .message-header {
            color: #34d399;
        }

        .human-operator-message .message-content {
            background: linear-gradient(135deg, #6ee7b7, #34d399);
            color: #064e3b;
            padding: 0.85rem 1.1rem;
            border-radius: 18px 18px 18px 4px;
            max-width: 85%;
            line-height: 1.6;
            border: 2px solid #059669;
            font-weight: 500;
        }

        [data-theme="dark"] .human-operator-message .message-content {
            background: linear-gradient(135deg, #065f46, #047857);
            color: #d1fae5;
            border-color: #34d399;
        }

        /* System Messages (joining/leaving notifications) */
        .system-message {
            align-items: center;
        }

        .system-message .message-content {
            background: rgba(107, 114, 128, 0.15);
            color: #6b7280;
            padding: 0.5rem 1rem;
            border-radius: 12px;
            font-size: 0.85rem;
            text-align: center;
            align-self: center;
            max-width: 90%;
            font-style: italic;
            border: 1px dashed rgba(107, 114, 128, 0.3);
        }

        [data-theme="dark"] .system-message .message-content {
            background: rgba(156, 163, 175, 0.1);
            color: #9ca3af;
            border-color: rgba(156, 163, 175, 0.3);
        }

        .system-message .message-content i {
            margin-right: 0.5rem;
            color: #10b981;
        }

        .demo-footer {
            padding: 1rem;
            background: #fff;
            border-top: 1px solid #e0e0e0;
            display: flex;
            gap: 0.5rem;
            align-items: flex-end;
        }

        [data-theme="dark"] .demo-footer {
            background: #3a3a3a;
            border-top-color: #555;
        }

        .demo-input-container {
            flex: 1;
            position: relative;
        }

        .demo-input {
            width: 100%;
            padding: 0.75rem 1rem;
            padding-right: 4rem;
            border: 1px solid #ddd;
            border-radius: 24px;
            font-size: 0.9rem;
            font-family: inherit;
            background: #f9f9f9;
            color: #666;
        }

        [data-theme="dark"] .demo-input {
            background: #2d2d2d;
            border-color: #555;
            color: #aaa;
        }

        .demo-input:focus {
            outline: none;
            border-color: #199600;
        }

        .demo-char-count {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 0.75rem;
            color: #999;
        }

        .demo-send-btn {
            background: transparent;
            border: none;
            color: #ccc;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            cursor: not-allowed;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        /* Marketing Content Styles */
        .demo-marketing {
            position: relative;
            min-height: 500px;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        [data-theme="dark"] .demo-marketing {
            background: rgba(0, 0, 0, 0.2);
            border-color: rgba(255, 255, 255, 0.05);
        }

        .marketing-content {
            display: none;
            animation: fadeIn 0.6s ease-out;
        }

        .marketing-content.active {
            display: block;
        }

        .marketing-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.95);
            color: #3b82f6;
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        [data-theme="dark"] .marketing-badge {
            background: rgba(255, 255, 255, 0.9);
            color: #2563eb;
        }

        .marketing-content h2,
        .marketing-content h3 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.3;
            color: white;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        [data-theme="dark"] .marketing-content h2,
        [data-theme="dark"] .marketing-content h3 {
            color: white;
        }

        .marketing-content > p {
            font-size: 1.1rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 2rem;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        }

        [data-theme="dark"] .marketing-content > p {
            color: rgba(255, 255, 255, 0.85);
        }

        .marketing-features {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .marketing-feature {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1.25rem;
            background: rgba(255, 255, 255, 0.1);
            border-left: 3px solid rgba(255, 255, 255, 0.3);
            border-radius: 0.5rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(5px);
        }

        [data-theme="dark"] .marketing-feature {
            background: rgba(255, 255, 255, 0.08);
        }

        .marketing-feature:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateX(5px);
            border-left-color: rgba(255, 255, 255, 0.5);
        }

        [data-theme="dark"] .marketing-feature:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .marketing-feature i {
            color: #10b981;
            font-size: 1.5rem;
            flex-shrink: 0;
            margin-top: 0.2rem;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
        }

        .marketing-feature strong {
            display: block;
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
            color: white;
        }

        [data-theme="dark"] .marketing-feature strong {
            color: white;
        }

        .marketing-feature p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.95rem;
            line-height: 1.5;
            margin: 0;
        }

        [data-theme="dark"] .marketing-feature p {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .chat-message {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            animation: slideIn 0.5s ease-out;
        }

        .chat-message.ai {
            flex-direction: row;
        }

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

        .message-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            flex-shrink: 0;
        }

        .message-avatar.ai {
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
            color: white;
        }

        .message-avatar.user {
            background: linear-gradient(135deg, #10b981, #059669);
            color: white;
        }

        .message-content {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 1rem;
            padding: 1rem 1.5rem;
            max-width: 70%;
            text-align: left;
        }

        .message-content.ai {
            background: rgba(59, 130, 246, 0.2);
            border-color: rgba(59, 130, 246, 0.3);
        }

        .message-content.user {
            background: rgba(16, 185, 129, 0.2);
            border-color: rgba(16, 185, 129, 0.3);
        }

        .typing-animation {
            display: flex;
            gap: 0.25rem;
            margin-top: 0.5rem;
        }

        .typing-dot {
            width: 8px;
            height: 8px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 50%;
            animation: typingBounce 1.4s infinite;
        }

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

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

        @keyframes typingBounce {

            0%,
            60%,
            100% {
                transform: translateY(0);
            }

            30% {
                transform: translateY(-10px);
            }
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Features Section */
        .features {
            padding: 6rem 0;
            background: var(--bg-secondary);
        }

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-header h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }

        .feature-card {
            background: var(--bg-color);
            padding: 2rem;
            border-radius: 1rem;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient-primary);
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: white;
            font-size: 1.5rem;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .feature-card p {
            color: var(--text-light);
            line-height: 1.6;
        }

        /* Pricing Section */
        .pricing {
            padding: 6rem 0;
            background: var(--bg-color);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .pricing-card {
            background: var(--bg-color);
            border: 2px solid var(--border-color);
            border-radius: 1rem;
            padding: 2rem;
            text-align: center;
            position: relative;
            transition: all 0.3s ease;
        }

        .pricing-card.popular {
            border-color: var(--primary-color);
            transform: scale(1.05);
            box-shadow: var(--shadow-lg);
        }

        .pricing-card.popular::before {
            content: 'Most Popular';
            position: absolute;
            top: -10px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--gradient-primary);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 1rem;
            font-size: 0.875rem;
            font-weight: 600;
        }

        .pricing-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .pricing-card .price {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }

        .pricing-card .period {
            color: #4b5563;
            margin-bottom: 2rem;
        }

        [data-theme="dark"] .pricing-card .period {
            color: #d1d5db;
        }

        .pricing-features {
            list-style: none;
            margin-bottom: 2rem;
        }

        .pricing-features li {
            padding: 0.5rem 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .pricing-features .check {
            color: var(--secondary-color);
        }

        /* Contact Section */
        .contact {
            padding: 6rem 0;
            background: var(--bg-secondary);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            margin-top: 3rem;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }

        .contact-item h4 {
            color: var(--text-color);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .contact-item p {
            color: var(--text-color);
            line-height: 1.6;
        }

        .contact-item small {
            color: #6b7280;
        }

        [data-theme="dark"] .contact-item small {
            color: #9ca3af;
        }

        .contact-item .icon {
            width: 50px;
            height: 50px;
            background: var(--gradient-primary);
            border-radius: 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            flex-shrink: 0;
        }

        .ai-advantage {
            background: var(--bg-color);
            padding: 2rem;
            border-radius: 1rem;
            box-shadow: var(--shadow);
        }

        .ai-advantage h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }

        .ai-benefits {
            margin: 2rem 0;
        }

        .benefit-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1.5rem;
            padding: 1rem;
            background: var(--bg-secondary);
            border-radius: 0.75rem;
            transition: transform 0.3s ease;
        }

        .benefit-item:hover {
            transform: translateY(-2px);
        }

        .benefit-icon {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            flex-shrink: 0;
        }

        .benefit-item h4 {
            margin-bottom: 0.5rem;
            color: var(--text-color);
            font-size: 1.1rem;
        }

        .benefit-item p {
            color: var(--text-light);
            line-height: 1.6;
        }

        .cta-highlight {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            color: white;
            padding: 2rem;
            border-radius: 1rem;
            text-align: center;
            margin-top: 2rem;
        }

        .cta-highlight h4 {
            margin-bottom: 1rem;
            font-size: 1.4rem;
        }

        .cta-highlight p {
            margin-bottom: 1.5rem;
            opacity: 0.95;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-buttons .btn {
            min-width: 150px;
        }

        /* Footer */
        .footer {
            background: #1f2937;
            color: #f3f4f6;
            padding: 3rem 0 1rem;
        }

        .footer p {
            color: #e5e7eb;
        }

        .footer a {
            color: #93c5fd;
            text-decoration: underline;
        }

        .footer a:hover {
            color: #bfdbfe;
        }

        [data-theme="dark"] .footer {
            background: #0f172a;
            color: #f3f4f6;
        }

        [data-theme="dark"] .footer p {
            color: #e5e7eb;
        }

        [data-theme="dark"] .footer a {
            color: #93c5fd;
        }

        [data-theme="dark"] .footer a:hover {
            color: #bfdbfe;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-section h4 {
            font-weight: 600;
            margin-bottom: 1rem;
            color: white;
        }

        [data-theme="dark"] .footer-section h4 {
            color: #f1f5f9;
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section ul li {
            margin-bottom: 0.5rem;
        }

        .footer-section ul li a {
            color: #e5e7eb;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        [data-theme="dark"] .footer-section ul li a {
            color: #e5e7eb;
        }

        .footer-section ul li a:hover {
            color: white;
        }

        [data-theme="dark"] .footer-section ul li a:hover {
            color: #f9fafb;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            padding-top: 1rem;
            text-align: center;
            color: #d1d5db;
        }

        [data-theme="dark"] .footer-bottom {
            border-top: 1px solid rgba(241, 245, 249, 0.2);
            color: #d1d5db;
        }

        /* Mobile Navigation */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-color);
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .hero {
                padding: 6rem 0 4rem;
                min-height: auto;
            }

            .hero::before {
                display: none;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .hero .subtitle {
                font-size: 1.1rem;
            }

            .hero-stats {
                gap: 1.5rem;
            }

            .hero-stat .number {
                font-size: 2rem;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
                gap: 1rem;
            }

            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
            }

            .demo-container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .demo-window {
                order: 1;
            }

            .demo-marketing {
                order: 2;
            }

            .demo-chat {
                padding: 1rem;
                min-height: 300px;
                max-height: 400px;
            }

            .message-content {
                max-width: 85%;
                padding: 0.75rem 1rem;
            }

            .operator-message .message-content,
            .user-message .message-content,
            .ai-bot-message .message-content {
                max-width: 85%;
                font-size: 0.9rem;
            }

            .demo-input {
                font-size: 0.85rem;
            }

            .demo-subheader {
                padding: 0.5rem 0.75rem;
            }

            .demo-username {
                font-size: 0.85rem;
            }

            .demo-help-btn {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }

            .marketing-content h2,
            .marketing-content h3 {
                font-size: 1.5rem;
            }

            .marketing-content > p {
                font-size: 1rem;
            }

            .contact-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .pricing-card.popular {
                transform: none;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }

            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }

            .hero-stat .number {
                font-size: 1.8rem;
            }

            .demo-header {
                padding: 0.75rem 1rem;
            }

            .demo-title {
                font-size: 0.75rem;
            }
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.6s ease-out;
        }

        /* Smooth scrolling */
        html {
            scroll-behavior: smooth;
        }

        /* Login Section */
        .login-section {
            padding: 10rem 0 6rem;
            background: linear-gradient(135deg, #0c1e3e 0%, #1e3a5f 25%, #2563eb 50%, #3b82f6 75%, #60a5fa 100%);
            color: white;
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .login-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(37, 99, 235, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 40% 60%, rgba(16, 185, 129, 0.3) 0%, transparent 50%);
            animation: gradientShift 8s ease-in-out infinite;
        }

        @keyframes gradientShift {
            0%, 100% { transform: scale(1) rotate(0deg); }
            50% { transform: scale(1.1) rotate(5deg); }
        }

        .login-content {
            position: relative;
            z-index: 1;
            width: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 4rem;
        }

        .login-info {
            flex: 1;
            max-width: 500px;
        }

        .login-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 2rem;
            padding: 0.5rem 1rem;
            margin-bottom: 2rem;
            font-size: 0.875rem;
            font-weight: 500;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.8; }
        }

        .login-info h1 {
            font-size: 3.5rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            line-height: 1.1;
            background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 50%, #c7d2fe 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 30px rgba(255, 255, 255, 0.5);
        }

        .login-info .ai-text {
            background: linear-gradient(135deg, #10b981 0%, #06d6a0 50%, #f59e0b 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
        }

        .login-info .ai-text::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(135deg, #10b981 0%, #06d6a0 50%, #f59e0b 100%);
            border-radius: 2px;
            animation: glow 2s ease-in-out infinite alternate;
        }

        @keyframes glow {
            from { box-shadow: 0 0 10px rgba(16, 185, 129, 0.5); }
            to { box-shadow: 0 0 20px rgba(16, 185, 129, 0.8), 0 0 30px rgba(245, 158, 11, 0.5); }
        }

        .login-info .subtitle {
            font-size: 1.25rem;
            margin-bottom: 2rem;
            opacity: 0.95;
            font-weight: 400;
            line-height: 1.6;
        }

        .login-stats {
            display: flex;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .login-stat {
            text-align: left;
        }

        .login-stat .number {
            font-size: 1.8rem;
            font-weight: 800;
            color: #10b981;
            display: block;
            margin-bottom: 0.25rem;
        }

        .login-stat .label {
            font-size: 0.875rem;
            opacity: 0.8;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        /* Login Form */
        .login-form-container {
            flex: 0 0 auto;
            width: 100%;
            max-width: 450px;
        }

        .login-form {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 1.5rem;
            padding: 3rem;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .login-form::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
            border-radius: 1.5rem;
            pointer-events: none;
        }

        .login-form-header {
            text-align: center;
            margin-bottom: 2rem;
            position: relative;
            z-index: 1;
        }

        .login-form-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: white;
        }

        .login-form-header p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1rem;
        }

        .form-group {
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.75rem;
            font-weight: 600;
            color: white;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 1rem 1.25rem;
            border: 2px solid rgba(255, 255, 255, 0.2);
            border-radius: 0.75rem;
            font-family: inherit;
            font-size: 1rem;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .form-control::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--secondary-color);
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }

        .checkbox-group {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }

        .checkbox-group input[type="checkbox"] {
            width: 18px;
            height: 18px;
            accent-color: var(--secondary-color);
        }

        .checkbox-group label {
            margin: 0;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            cursor: pointer;
        }

        .submit-group {
            position: relative;
            z-index: 1;
        }

        .btn-submit {
            width: 100%;
            padding: 1rem 2rem;
            background: linear-gradient(135deg, #10b981, #059669);
            color: white;
            border: none;
            border-radius: 0.75rem;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
            margin-bottom: 1.5rem;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 35px rgba(16, 185, 129, 0.4);
        }

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

        .forgot-password {
            text-align: center;
        }

        .forgot-password a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .forgot-password a:hover {
            color: white;
            text-decoration: underline;
        }

        /* Mobile Navigation */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-color);
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .login-content {
                flex-direction: column;
                gap: 2rem;
            }

            .login-info {
                text-align: center;
                max-width: 100%;
            }

            .login-info h1 {
                font-size: 2.8rem;
            }

            .login-stats {
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .login-section {
                padding: 6rem 0 4rem;
                min-height: auto;
            }

            .login-info h1 {
                font-size: 2.2rem;
            }

            .login-info .subtitle {
                font-size: 1.1rem;
            }

            .login-stats {
                flex-direction: column;
                gap: 1rem;
                align-items: center;
            }

            .login-stat {
                text-align: center;
            }

            .login-form {
                padding: 2rem;
            }

            .login-form-header h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 480px) {
            .login-info h1 {
                font-size: 1.8rem;
            }

            .login-form {
                padding: 1.5rem;
            }
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.6s ease-out;
        }

        /* Smooth scrolling */
        html {
            scroll-behavior: smooth;
        }

        /* Input icons */
        .input-icon {
            position: relative;
        }

        .input-icon i {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.6);
            z-index: 1;
        }

        .input-icon .form-control {
            padding-left: 3rem;
        }