:root {
            --primary: #2563eb;
            --secondary: #1e40af;
            --accent: #f59e0b;
            --light: #f8fafc;
            --dark: #1e293b;
            --success: #10b981;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', system-ui, sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header Styles */
        header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary);
        }
        
        .logo i {
            color: var(--accent);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            transition: color 0.3s;
            position: relative;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        /* Hero Section */
        .hero {
            padding: 140px 0 80px;
            text-align: center;
            color: white;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
            animation: fadeInUp 1s ease;
        }
        
        .hero p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            animation: fadeInUp 1s ease 0.2s both;
        }
        
        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
            animation: fadeInUp 1s ease 0.4s both;
        }
        
        .badge {
            background: rgba(255,255,255,0.2);
            padding: 10px 20px;
            border-radius: 25px;
            backdrop-filter: blur(10px);
        }
        
        .cta-button {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: white;
            padding: 18px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            animation: fadeInUp 1s ease 0.6s both;
            box-shadow: 0 8px 25px rgba(245, 158, 11, 0.3);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(245, 158, 11, 0.4);
        }
        
        /* Features Section */
        .features {
            background: white;
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }
        
        .section-title p {
            color: #64748b;
            font-size: 1.1rem;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        
        .feature-card {
            background: var(--light);
            padding: 2.5rem 2rem;
            border-radius: 15px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid #e2e8f0;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }
        
        .feature-icon {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            color: var(--primary);
        }
        
        .feature-card h3 {
            margin-bottom: 1rem;
            color: var(--dark);
        }
        
        /* Products Section */
        .products {
            background: var(--light);
            padding: 80px 0;
        }
        
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2.5rem;
            margin-top: 3rem;
        }
        
        .product-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            position: relative;
        }
        
        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }
        
        .product-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: bold;
            z-index: 2;
        }
        
        .product-image {
            height: 200px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }
        
        .product-content {
            padding: 1.5rem;
        }
        
        .product-content h3 {
            margin-bottom: 0.5rem;
            color: var(--dark);
        }
        
        .product-specs {
            list-style: none;
            margin: 1rem 0;
        }
        
        .product-specs li {
            padding: 0.3rem 0;
            color: #64748b;
        }
        
        .product-specs i {
            color: var(--success);
            margin-right: 0.5rem;
        }
        
        .product-price {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary);
            margin: 1rem 0;
        }
        
        .product-actions {
            display: flex;
            gap: 1rem;
        }
        
        .buy-btn {
            flex: 1;
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s;
        }
        
        .buy-btn:hover {
            background: var(--secondary);
        }
        
        .details-btn {
            flex: 1;
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 10px;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .details-btn:hover {
            background: var(--primary);
            color: white;
        }
        
        /* Payment Section */
        .payment {
            background: white;
            padding: 80px 0;
        }
        
        .payment-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }
        
        .step-card {
            text-align: center;
            padding: 2rem;
            background: var(--light);
            border-radius: 15px;
            transition: transform 0.3s;
        }
        
        .step-card:hover {
            transform: scale(1.05);
        }
        
        .step-number {
            width: 50px;
            height: 50px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin: 0 auto 1rem;
        }
        
        .mtn-info {
            background: var(--primary);
            color: white;
            padding: 3rem;
            border-radius: 15px;
            text-align: center;
            margin-top: 3rem;
        }
        
        .mtn-number {
            font-size: 2rem;
            font-weight: bold;
            margin: 1rem 0;
            background: rgba(255,255,255,0.2);
            padding: 1rem;
            border-radius: 10px;
            display: inline-block;
        }
        
        /* Testimonials */
        .testimonials {
            background: var(--light);
            padding: 80px 0;
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }
        
        .testimonial-card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
        }
        
        .testimonial-text {
            font-style: italic;
            margin-bottom: 1rem;
            color: #64748b;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }
        
        /* Contact Form */
        .contact {
            background: white;
            padding: 80px 0;
        }
        
        .form-container {
            max-width: 600px;
            margin: 0 auto;
            background: var(--light);
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #e2e8f0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }
        
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
        }
        
        .submit-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 18px 30px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            width: 100%;
            transition: background 0.3s;
        }
        
        .submit-btn:hover {
            background: var(--secondary);
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        
        .footer-section h3 {
            margin-bottom: 1.5rem;
            color: var(--accent);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            color: #cbd5e1;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: white;
        }
        
        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
        }
        
        .social-links a {
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: background 0.3s;
        }
        
        .social-links a:hover {
            background: var(--primary);
        }
        
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #334155;
            color: #94a3b8;
        }
        
        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
        }