:root {
            --primary-color: #0080FF;
            --primary-dark: #0066CC;
            --success-color: #00D084;
            --success-dark: #00A66C;
            --container-padding: 2.5rem;
            --container-max-width: 1140px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            overflow-x: hidden;
        }

        /* Preloader */
        .preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: white;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.5s ease;
        }

        .preloader.fade-out {
            opacity: 0;
            pointer-events: none;
        }

        .spinner {
            width: 60px;
            height: 60px;
            border: 4px solid #f3f3f3;
            border-top: 4px solid var(--primary-color);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

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

        /* Container */
        .container {
            max-width: var(--container-max-width);
            padding-left: var(--container-padding);
            padding-right: var(--container-padding);
            margin: 0 auto;
        }

        /* Navbar with Animation */
        .navbar-wrapper {
            position: fixed;
            top: 0;
            z-index: 1000;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }

        .navbar-wrapper.scrolled {
            background-color: rgba(255, 255, 255, 1);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .navbar {
            height: 72px;
            padding: 0;
            transition: all 0.3s ease;
        }

        .navbar .container {
            height: 100%;
        }

        .navbar-brand img {
            height: 40px;
            transition: transform 0.3s ease;
        }

        .navbar-brand:hover img {
            transform: scale(1.05);
        }

        .nav-link {
            color: #4A5568;
            font-weight: 500;
            padding: 0.5rem 1rem;
            position: relative;
            transition: color 0.3s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 80%;
        }

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

        /* Animated Buttons */
        .btn {
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            transform: translateZ(0);
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }

        .btn:hover::before {
            width: 300px;
            height: 300px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            border: none;
            padding: 0.5rem 1rem;
            box-shadow: 0 4px 15px rgba(0, 128, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 128, 255, 0.4);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
        }

        .btn-success {
            background: linear-gradient(135deg, var(--success-color), var(--success-dark));
            border: none;
            color: white;
            font-weight: 500;
            padding: 0.5rem 1.25rem;
            box-shadow: 0 4px 15px rgba(0, 208, 132, 0.3);
        }

        .btn-success:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 208, 132, 0.4);
            background: linear-gradient(135deg, var(--success-dark), var(--success-color));
        }

        .btn-success i {
            transition: transform 0.3s ease;
        }

        .btn-success:hover i {
            transform: translateX(4px);
        }

        /* Hero Section with Parallax */
        .hero-section {
            padding: 8rem 0 5rem;
            background: linear-gradient(180deg, #F7FAFC 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 80%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 128, 255, 0.05) 0%, transparent 70%);
            animation: float 20s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translate(0, 0) rotate(0deg); }
            25% { transform: translate(-20px, -20px) rotate(1deg); }
            50% { transform: translate(20px, -10px) rotate(-1deg); }
            75% { transform: translate(-10px, 20px) rotate(0.5deg); }
        }

        .hero-heading {
            font-size: 3.5rem;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: #1A202C;
            background: linear-gradient(135deg, #1A202C 0%, var(--primary-color) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtext {
            font-size: 1.25rem;
            color: #4A5568;
            margin-bottom: 2rem;
            line-height: 1.5;
        }

        /* Email Form */
        .email-form {
            display: flex;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .email-input {
            width: 320px;
            padding: 0.75rem 1rem;
            border: 2px solid #E2E8F0;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .email-input:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(0, 128, 255, 0.1);
            outline: none;
        }

        /* Animated Chat UI */
        .chat-ui {
            background-color: #fff;
            border: 1px solid #ddd;
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            display: flex;
            width: 100%;
            max-width: 500px;
            margin: 0 auto;
            transform: perspective(1000px) rotateY(-5deg);
            transition: transform 0.3s ease;
        }

        .chat-ui:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        .chat-ui .left-panel {
            background-color: #f9f9f9;
            border-right: 1px solid #ddd;
            width: 30%;
            min-height: 400px;
            padding: 1rem;
        }

        .chat-ui .conversation {
            margin-bottom: 1rem;
            padding: 0.5rem;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s ease;
            opacity: 0;
            animation: slideInLeft 0.5s ease forwards;
        }

        .chat-ui .conversation:nth-child(2) { animation-delay: 0.1s; }
        .chat-ui .conversation:nth-child(3) { animation-delay: 0.2s; }
        .chat-ui .conversation:nth-child(4) { animation-delay: 0.3s; }
        .chat-ui .conversation:nth-child(5) { animation-delay: 0.4s; }

        @keyframes slideInLeft {
            from {
                opacity: 0;
                transform: translateX(-20px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .chat-ui .conversation:hover {
            background-color: #eef1f5;
            transform: translateX(5px);
        }

        .chat-ui .right-panel {
            width: 70%;
            padding: 1rem;
            position: relative;
            min-height: 400px;
        }

        .chat-ui .message {
            margin-bottom: 0.5rem;
            display: inline-block;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            font-size: 0.9rem;
            animation: messageIn 0.5s ease;
        }

        @keyframes messageIn {
            from {
                opacity: 0;
                transform: scale(0.8) translateY(10px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        .typing-text {
            display: inline-block;
        }

        /* Trusted Section */
        .trusted-section {
            padding: 3rem 0;
            border-bottom: 1px solid #E2E8F0;
            background: white;
        }

        .trusted-logos {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .trusted-logo {
            height: 24px;
            opacity: 0.6;
            transition: all 0.3s ease;
            filter: grayscale(100%);
        }

        .trusted-logo:hover {
            opacity: 1;
            filter: grayscale(0%);
            transform: scale(1.1);
        }

        /* Features Section */
        .features-section {
            padding: 5rem 0;
            background: linear-gradient(180deg, #FFFFFF 0%, #F7FAFC 100%);
        }

        .feature-card {
            padding: 2rem;
            border-radius: 12px;
            transition: all 0.3s ease;
            background: white;
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            font-size: 3rem;
            transition: all 0.3s ease;
        }

        .feature-card:hover .feature-icon {
            transform: rotate(5deg) scale(1.1);
        }

        /* Stats Section */
        .stats-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            color: white;
        }

        .stat-item {
            text-align: center;
            padding: 1rem;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 1.1rem;
            opacity: 0.9;
        }

        /* Pricing Section */
        .pricing-section {
            padding: 5rem 0;
            background-color: #F7FAFC;
        }

        .pricing-tabs {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-bottom: 3rem;
            padding: 0.5rem;
            background-color: #EDF2F7;
            border-radius: 12px;
            width: fit-content;
            margin-left: auto;
            margin-right: auto;
        }

        .pricing-tab {
            border: none;
            background: transparent;
            padding: 1rem 1.5rem;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .pricing-tab:hover {
            transform: translateY(-2px);
        }

        .pricing-tab.active {
            background-color: #FFFFFF;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .pricing-tab .amount {
            font-weight: 600;
            font-size: 1.25rem;
            color: #2D3748;
            margin-bottom: 0.25rem;
        }

        .price-card {
            background: #FFFFFF;
            border-radius: 16px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            padding: 2.5rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            max-width: 800px;
            margin: 0 auto;
            transition: all 0.3s ease;
        }

        .price-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
        }

        .price-amount {
            font-size: 4rem;
            font-weight: 700;
            color: #1A202C;
        }

        .price-counter {
            display: inline-block;
        }

        .credits-badge {
            display: inline-block;
            background: linear-gradient(135deg, rgba(0, 208, 132, 0.1), rgba(0, 208, 132, 0.2));
            color: var(--success-color);
            padding: 0.5rem 1rem;
            border-radius: 100px;
            font-weight: 500;
            margin: 1.5rem 0;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .features-list li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: .7rem;
            color: #4A5568;
            opacity: 0;
            animation: fadeInUp 0.5s ease forwards;
        }

        .features-list li:nth-child(1) { animation-delay: 0.1s; }
        .features-list li:nth-child(2) { animation-delay: 0.2s; }
        .features-list li:nth-child(3) { animation-delay: 0.3s; }
        .features-list li:nth-child(4) { animation-delay: 0.4s; }
        .features-list li:nth-child(5) { animation-delay: 0.5s; }

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

        /* Integration Section */
        .integration-section {
            padding: 5rem 0;
            background: white;
        }

        .code-block {
            background: #1A202C;
            color: #A0AEC0;
            padding: 2rem;
            border-radius: 12px;
            font-family: 'Monaco', 'Courier New', monospace;
            position: relative;
            overflow: hidden;
        }

        .code-block::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            animation: codeSweep 3s infinite;
        }

        @keyframes codeSweep {
            0% { left: -100%; }
            100% { left: 100%; }
        }

        /* Contact Section */
        .contact-section {
            padding: 5rem 0;
            background: linear-gradient(180deg, #F7FAFC 0%, #FFFFFF 100%);
        }

        .contact-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            height: 100%;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }

        .contact-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }

        /* Footer */
        footer {
            background-color: #1A202C;
            color: white;
            padding: 2rem 0;
            text-align: center;
        }

        /* Scroll to Top Button */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 128, 255, 0.3);
        }

        .scroll-top.active {
            opacity: 1;
            visibility: visible;
        }

        .scroll-top:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 20px rgba(0, 128, 255, 0.4);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero-heading {
                font-size: 2.5rem;
            }
            
            .price-card {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            
            .email-form {
                flex-direction: column;
            }
            
            .email-input {
                width: 100%;
            }
            
            .chat-ui {
                transform: none;
            }
        }