* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-color: #00ff88;
            --secondary-color: #00cc6a;
            --accent-color: #00ff66;
            --dark-bg: #000000;
            --dark-card: #111111;
            --text-primary: #ffffff;
            --text-secondary: #999999;
            --gradient-primary: linear-gradient(135deg, #00ff88 0%, #00cc6a 50%, #00ff66 100%);
            --gradient-secondary: linear-gradient(135deg, #111111 0%, #222222 100%);
            --neon-glow: 0 0 20px rgba(0, 255, 136, 0.5);
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--dark-bg);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(0, 0, 0, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 255, 136, 0.2);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo::before {
            content: '</>';
            color: var(--primary-color);
            font-family: 'Courier New', monospace;
            text-shadow: var(--neon-glow);
        }

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

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

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

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-primary);
            transition: width 0.3s ease;
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-primary);
            transition: all 0.3s ease;
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at center, rgba(0, 255, 136, 0.15) 0%, transparent 70%);
        }

        .hero-content {
            text-align: center;
            max-width: 800px;
            padding: 0 2rem;
            z-index: 2;
            position: relative;
        }

        .hero h1 {
            font-size: 4rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: slideUp 1s ease-out;
        }

        .hero p {
            font-size: 1.3rem;
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            animation: slideUp 1s ease-out 0.2s both;
        }

        .cta-buttons {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            animation: slideUp 1s ease-out 0.4s both;
        }

        .btn {
            padding: 1rem 2rem;
            border: none;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: white;
            transform: translateY(0);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 20px 40px rgba(0, 255, 136, 0.4);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--primary-color);
        }

        .btn-secondary:hover {
            background: var(--primary-color);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
            color: black;
        }

        /* Products Section */
        .products {
            padding: 6rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .products-container {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 3rem;
            align-items: start;
        }

        .product-featured {
            background: var(--gradient-secondary);
            border-radius: 25px;
            border: 2px solid var(--primary-color);
            overflow: hidden;
            position: relative;
        }

        .product-featured::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-primary);
        }

        .product-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 2rem 2.5rem 1rem;
        }

        .product-logo {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .sellvera-icon {
            width: 50px;
            height: 50px;
            background: var(--gradient-primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: black;
            text-shadow: none;
        }

        .product-logo h3 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-color);
            text-shadow: var(--neon-glow);
        }

        .product-badge {
            background: var(--gradient-primary);
            color: black;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .product-content {
            padding: 0 2.5rem 2.5rem;
        }

        .product-content h4 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .product-content > p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        .product-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-bottom: 2.5rem;
        }

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

        .feature-icon {
            font-size: 1.5rem;
            margin-top: 0.2rem;
        }

        .feature h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }

        .feature p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        .product-actions {
            display: flex;
            gap: 1rem;
        }

        .coming-soon {
            background: var(--gradient-secondary);
            border-radius: 20px;
            border: 1px solid rgba(0, 255, 136, 0.2);
            padding: 3rem 2rem;
            text-align: center;
            height: fit-content;
        }

        .coming-soon-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1.5rem;
        }

        .coming-icon {
            font-size: 3rem;
            animation: float 3s ease-in-out infinite;
        }

        .coming-soon h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .coming-soon p {
            color: var(--text-secondary);
            text-align: center;
        }

        /* Services Section */
        .services {
            padding: 6rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 4rem;
        }

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

        .service-card {
            background: var(--gradient-secondary);
            padding: 2.5rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 255, 136, 0.2);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
            transition: left 0.5s ease;
        }

        .service-card:hover::before {
            left: 100%;
        }

        .service-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary-color);
            box-shadow: 0 25px 50px rgba(0, 255, 136, 0.2);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient-primary);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }

        .service-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .service-card p {
            color: var(--text-secondary);
        }

        /* About Section */
        .about {
            background: var(--gradient-secondary);
            padding: 6rem 2rem;
        }

        .about-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .about-content h2 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }

        .about-content p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }

        .stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }

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

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Contact Section */
        .contact {
            padding: 6rem 2rem;
            background: var(--dark-bg);
        }

        .contact-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .contact-form {
            background: var(--gradient-secondary);
            padding: 3rem;
            border-radius: 20px;
            border: 1px solid rgba(0, 255, 136, 0.2);
            margin-top: 3rem;
        }

        .form-group {
            margin-bottom: 2rem;
            text-align: left;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 1rem;
            border: 1px solid rgba(0, 255, 136, 0.3);
            border-radius: 10px;
            background: var(--dark-card);
            color: var(--text-primary);
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
        }

        /* Footer */
        footer {
            background: var(--dark-card);
            padding: 3rem 2rem 2rem;
            text-align: center;
            border-top: 1px solid rgba(0, 255, 136, 0.2);
        }

        .social-links {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .social-links a {
            width: 50px;
            height: 50px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            color: white;
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 255, 136, 0.4);
        }

        /* Animations */
        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }

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

            .menu-toggle {
                display: flex;
            }

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

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

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .section-title {
                font-size: 2rem;
            }

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

            .stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

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

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

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

            .product-actions {
                flex-direction: column;
            }

            nav {
                padding: 1rem;
            }

            .hero-content,
            .services,
            .contact {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

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

            .btn {
                padding: 0.8rem 1.5rem;
                font-size: 1rem;
            }

            .service-card {
                padding: 1.5rem;
            }

            .contact-form {
                padding: 2rem;
            }
        }

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

        /* Loading animation for better UX */
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease;
        }

        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }