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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
        }

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

        header {
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(59, 130, 246, 0.3);
        }

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

        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: #3b82f6;
            text-decoration: none;
        }

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

        .nav-links a {
            color: #e2e8f0;
            text-decoration: none;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: #3b82f6;
        }

        .hero {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            color: white;
            padding: 120px 0 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23334155" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
            opacity: 0.1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero .motto {
            font-size: 1.5rem;
            color: #06b6d4;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            color: #cbd5e1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-button {
            display: inline-block;
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            color: white;
            padding: 15px 30px;
            text-decoration: none;
            border-radius: 50px;
            font-weight: bold;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
        }

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
        }

        .section {
            padding: 80px 0;
            background: white;
        }

        .section:nth-child(even) {
            background: #f8fafc;
        }

        .section h2 {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            color: #1e293b;
        }

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

        .feature-card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid #e2e8f0;
        }

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

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            font-size: 1.5rem;
            color: white;
        }

        .how-it-works {
            background: #0f172a;
            color: white;
        }

        .how-it-works h2 {
            color: white;
        }

        .steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .step {
            text-align: center;
            padding: 2rem;
            background: rgba(59, 130, 246, 0.1);
            border-radius: 15px;
            border: 1px solid rgba(59, 130, 246, 0.3);
        }

        .step-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.2rem;
            font-weight: bold;
        }

        .comparison-table {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }

        .comparison-table table {
            width: 100%;
            border-collapse: collapse;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 1rem;
            text-align: center;
            border-bottom: 1px solid #e2e8f0;
        }

        .comparison-table th {
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            color: white;
            font-weight: bold;
        }

        .comparison-table .highlight {
            background: #f0f9ff;
            font-weight: bold;
            color: #0369a1;
        }

        .pricing {
            background: #f8fafc;
        }

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

        .pricing-card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            text-align: center;
            position: relative;
            border: 2px solid transparent;
            transition: all 0.3s;
        }

        .pricing-card.popular {
            border-color: #3b82f6;
            transform: scale(1.05);
        }

        .pricing-card.popular::before {
            content: 'NAJPOPULARNIEJSZY';
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            color: white;
            padding: 5px 20px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: bold;
        }

        .pricing-card.popular::after {
            content: 'MOST POPULAR';
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            color: white;
            padding: 5px 20px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: bold;
            display: none;
        }

        [lang="en"] .pricing-card.popular::before {
            display: none;
        }

        [lang="en"] .pricing-card.popular::after {
            display: block;
        }

        .price {
            font-size: 2.5rem;
            font-weight: bold;
            color: #3b82f6;
            margin: 1rem 0;
        }

        .price-unit {
            font-size: 1rem;
            color: #64748b;
        }

        .features-list {
            list-style: none;
            margin: 2rem 0;
        }

        .features-list li {
            padding: 0.5rem 0;
            position: relative;
            padding-left: 2rem;
        }

        .features-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: #10b981;
            font-weight: bold;
        }

        .contact {
            background: #0f172a;
            color: white;
            text-align: center;
        }

        .contact h2 {
            color: white;
        }

        .contact-info {
            max-width: 600px;
            margin: 0 auto;
        }

        .contact-item {
            margin: 1rem 0;
            font-size: 1.1rem;
        }

        .contact-item strong {
            color: #3b82f6;
        }

        footer {
            background: #020617;
            color: #94a3b8;
            text-align: center;
            padding: 2rem 0;
        }

        .hidden-content {
            display: none !important;
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero .motto {
                font-size: 1.2rem;
            }
            
            .nav-links {
                display: none;
            }
            
            .features-grid,
            .steps,
            .pricing-grid {
                grid-template-columns: 1fr;
            }
        }
</style>