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

        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }

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

        /* Header */
        .header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 1rem 0;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
        }

        .nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #667eea;
            background: url("logo.png");
            text-indent: 50px;
            background-repeat: no-repeat;
            background-size: contain;
        }

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

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

        .nav-links a:hover {
            color: #667eea;
        }

        /* Hero Section */
        .hero {
            padding: 120px 0 80px;
            text-align: center;
            color: white;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

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

        .btn {
            padding: 12px 24px;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
            cursor: pointer;
        }

        .btn-primary {
            background: #ff6b6b;
            color: white;
        }

        .btn-primary:hover {
            background: #ff5252;
            transform: translateY(-2px);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        /* Features Section */
        .features {
            padding: 80px 0;
            background: white;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 3rem;
            color: #333;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }

        .feature-card {
            background: #f8f9ff;
            padding: 2rem;
            border-radius: 16px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid #e8ecff;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 2rem;
            color: white;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: #333;
        }

        .feature-card p {
            color: #666;
            line-height: 1.6;
        }

        /* Cloud Sync Section */
        .cloud-sync {
            padding: 80px 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }

        .sync-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .sync-text h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .sync-text p {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .sync-features {
            list-style: none;
        }

        .sync-features li {
            display: flex;
            align-items: center;
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

        .sync-features i {
            margin-right: 1rem;
            color: #ffd700;
        }

        .sync-visual {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
            backdrop-filter: blur(10px);
        }

        .device-icons {
            display: flex;
            justify-content: space-around;
            margin: 2rem 0;
        }

        .device-icon {
            width: 60px;
            height: 60px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .sync-arrow {
            font-size: 2rem;
            color: #ffd700;
            margin: 1rem 0;
        }

        /* Premium Section */
        .premium {
            padding: 80px 0;
            background: #f8f9ff;
        }

        .premium-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .premium-visual {
            background: linear-gradient(135deg, #ff6b6b, #ffa726);
            border-radius: 20px;
            padding: 2rem;
            text-align: center;
            color: white;
        }

        .premium-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .pricing-cards {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
        }

        .pricing-card {
            background: rgba(255, 255, 255, 0.2);
            padding: 1rem;
            border-radius: 12px;
            flex: 1;
        }

        .pricing-card h4 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }

        .pricing-card .price {
            font-size: 1.5rem;
            font-weight: 700;
        }

        .premium-text h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: #333;
        }

        .premium-text p {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            color: #666;
        }

        .premium-benefits {
            list-style: none;
        }

        .premium-benefits li {
            display: flex;
            align-items: center;
            margin-bottom: 1rem;
            font-size: 1.1rem;
            color: #333;
        }

        .premium-benefits i {
            margin-right: 1rem;
            color: #ff6b6b;
        }

        /* Security Section */
        .security {
            padding: 80px 0;
            background: white;
        }

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

        .security-item {
            text-align: center;
            padding: 2rem;
        }

        .security-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #4caf50, #8bc34a);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.5rem;
            color: white;
        }

        .security-item h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #333;
        }

        .security-item p {
            color: #666;
            font-size: 0.9rem;
        }

        /* Tech Stack Section */
        .tech-stack {
            padding: 80px 0;
            background: #f8f9ff;
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }

        .tech-item {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
        }

        .tech-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        .tech-item h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: #333;
        }

        .tech-item p {
            color: #666;
            font-size: 0.9rem;
        }

        /* CTA Section */
        .cta {
            padding: 80px 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            text-align: center;
            color: white;
        }

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

        .cta p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        /* Footer */
        .footer {
            padding: 40px 0;
            background: #333;
            color: white;
            text-align: center;
        }

        .footer p {
            opacity: 0.8;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }

            .sync-content,
            .premium-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .nav-links {
                display: none;
            }

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

            .pricing-cards {
                flex-direction: column;
            }
        }

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

        .feature-card,
        .security-item,
        .tech-item {
            animation: fadeInUp 0.6s ease-out;
        }

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