:root {
            --primary: #000000;
            --secondary: #FFFFFF;
            --accent: #10B981;
            --accent-dark: #059669;
            --accent-light: #34D399;
            --gray-light: #1F2937;
            --gray: #9CA3AF;
            --gray-dark: #D1D5DB;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Times New Roman', Times, serif;
            background-color: var(--primary);
            color: var(--secondary);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* Header */
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #111827 100%);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .header-pattern {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
            z-index: 1;
        }

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

        .urgency-bar {
            background: var(--accent);
            color: var(--secondary);
            padding: 15px;
            text-align: center;
            font-weight: 700;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(16, 185, 129, 0.3);
            font-size: 0.95rem;
            font-family: 'Times New Roman', Times, serif;
        }

        .badge {
            background: var(--accent);
            color: var(--secondary);
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 25px;
            font-size: 0.9rem;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
            font-family: 'Times New Roman', Times, serif;
        }

        h1 {
            font-size: 3.8rem;
            margin-bottom: 25px;
            color: var(--secondary);
            font-weight: 700;
            line-height: 1.2;
            font-family: 'Times New Roman', Times, serif;
        }

        .subtitle {
            font-size: 1.5rem;
            color: var(--accent-light);
            margin-bottom: 40px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            font-weight: 400;
            line-height: 1.5;
            font-family: 'Times New Roman', Times, serif;
        }

        /* Hero Section */
        .hero {
            display: grid;
            grid-template-columns: min-content;
            justify-content: center;
            gap: 60px;
            padding: 100px 0;
            background: var(--primary);
        }

        .ebook-cover {
            background: #111827;
            border: 3px solid var(--accent);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .ebook-cover::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
        }

        .ebook-cover:hover {
            transform: translateY(-10px);
            box-shadow: 0 30px 60px rgba(16, 185, 129, 0.2);
        }

        .cover-image {
            width: 100%;
            height: 100%;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-weight: 600;
            font-size: 1.6rem;
            flex-direction: column;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #1a3c27, #2e7d32);
        }

        .cover-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
        }

        .cover-placeholder {
            width: 100%;
            height: 420px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-weight: 600;
            font-size: 1.6rem;
            flex-direction: column;
            position: relative;
            overflow: hidden;
            font-family: 'Times New Roman', Times, serif;
        }

        .cover-placeholder::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, transparent 40%, rgba(255,255,255,0.1) 50%, transparent 60%);
            animation: shine 3s infinite;
        }

        @keyframes shine {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }

        .pricing {
            background: #111827;
            padding: 50px 40px;
            border-radius: 20px;
            border: 2px solid var(--accent);
            text-align: center;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            position: relative;
            overflow: hidden;
        }

        .pricing::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
        }

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

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

        .price-comparison {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            margin-bottom: 20px;
        }

        .old-price {
            text-decoration: line-through;
            color: var(--gray);
            font-size: 1.6rem;
            font-weight: 700;
            font-family: 'Times New Roman', Times, serif;
        }

        .discount-badge {
            background: #EF4444;
            color: white;
            padding: 8px 16px;
            border-radius: 25px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
            font-family: 'Times New Roman', Times, serif;
        }

        .new-price {
            color: var(--accent-light);
            font-size: 4rem;
            font-weight: 700;
            margin-bottom: 15px;
            text-shadow: 0 2px 10px rgba(16, 185, 129, 0.3);
            font-family: 'Times New Roman', Times, serif;
        }

        .price-installments {
            color: var(--gray);
            margin-bottom: 25px;
            font-size: 1.1rem;
            font-weight: 700;
            font-family: 'Times New Roman', Times, serif;
        }

        .discount {
            background: var(--accent);
            color: var(--secondary);
            padding: 12px 25px;
            border-radius: 30px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 30px;
            font-size: 1.1rem;
            box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
            font-family: 'Times New Roman', Times, serif;
        }

        .cta-button {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--secondary);
            padding: 22px 45px;
            border: none;
            border-radius: 60px;
            font-size: 1.4rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            margin: 25px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            box-shadow: 0 8px 25px rgba(16, 185, 129, 0.4);
            position: relative;
            overflow: hidden;
            font-family: 'Times New Roman', Times, serif;
        }

        .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        .cta-button:hover::before {
            left: 100%;
        }

        .cta-button:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(16, 185, 129, 0.6);
        }

        a {
            text-decoration: none;
        }

        .guarantee {
            color: var(--accent-light);
            font-size: 1.05rem;
            margin-top: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 700;
            font-family: 'Times New Roman', Times, serif;
        }

        .benefits-list {
            text-align: left;
            margin-top: 30px;
            background: rgba(255, 255, 255, 0.05);
            padding: 25px;
            border-radius: 15px;
        }

        .benefit-item {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
            color: var(--gray-dark);
            font-weight: 700;
            font-family: 'Times New Roman', Times, serif;
        }

        /* Benefits Section */
        .benefits {
            padding: 100px 0;
            background: var(--primary);
        }

        .section-title {
            text-align: center;
            font-size: 2.8rem;
            color: var(--secondary);
            margin-bottom: 60px;
            font-weight: 700;
            font-family: 'Times New Roman', Times, serif;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 40px;
        }

        .benefit-card {
            background: #111827;
            padding: 40px 30px;
            border-radius: 20px;
            border: 2px solid #374151;
            transition: all 0.3s ease;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            position: relative;
            overflow: hidden;
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .benefit-card:hover::before {
            transform: scaleX(1);
        }

        .benefit-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(16, 185, 129, 0.2);
            border-color: var(--accent);
        }

        .benefit-icon {
            font-size: 3.5rem;
            color: var(--accent);
            margin-bottom: 25px;
            display: inline-block;
            transition: transform 0.3s ease;
        }

        .benefit-card:hover .benefit-icon {
            transform: scale(1.1);
        }

        .benefit-card h3 {
            color: var(--secondary);
            margin-bottom: 20px;
            font-size: 1.4rem;
            font-weight: 700;
            font-family: 'Times New Roman', Times, serif;
        }

        .benefit-card p {
            color: var(--gray-dark);
            line-height: 1.7;
            font-family: 'Times New Roman', Times, serif;
        }

        /* Content Preview */
        .content-preview {
            padding: 100px 0;
            background: var(--primary);
        }

        .chapter-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .chapter-item {
            background: #111827;
            margin: 20px 0;
            padding: 25px;
            border-radius: 15px;
            border-left: 5px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all 0.3s ease;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            border: 1px solid #374151;
        }

        .chapter-item:hover {
            transform: translateX(10px);
            box-shadow: 0 10px 30px rgba(16, 185, 129, 0.2);
        }

        .chapter-number {
            background: var(--accent);
            color: var(--secondary);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
            font-size: 1.2rem;
            box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
            font-family: 'Times New Roman', Times, serif;
        }

        .chapter-item strong, .chapter-item p {
            font-family: 'Times New Roman', Times, serif;
        }

        /* Testimonials */
        .testimonials {
            padding: 100px 0;
            background: var(--primary);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 40px;
        }

        .testimonial-card {
            background: #111827;
            padding: 40px 35px;
            border-radius: 20px;
            border: 2px solid #374151;
            position: relative;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
        }

        .testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(16, 185, 129, 0.2);
            border-color: var(--accent);
        }

        .testimonial-card::before {
            content: "“";
            font-size: 6rem;
            color: var(--accent);
            position: absolute;
            top: -10px;
            left: 20px;
            opacity: 0.1;
            font-family: 'Times New Roman', Times, serif;
        }

        .testimonial-text {
            font-style: italic;
            margin-bottom: 25px;
            color: var(--gray-dark);
            position: relative;
            z-index: 1;
            line-height: 1.7;
            font-size: 1.05rem;
            font-family: 'Times New Roman', Times, serif;
        }

        .testimonial-author {
            color: var(--accent);
            font-weight: 700;
            font-size: 1.1rem;
            font-family: 'Times New Roman', Times, serif;
        }

        /* FAQ */
        .faq {
            padding: 100px 0;
            background: var(--primary);
        }

        .faq-item {
            background: #111827;
            margin: 20px 0;
            padding: 30px;
            border-radius: 15px;
            border: 2px solid #374151;
            transition: all 0.3s ease;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
        }

        .faq-item:hover {
            border-color: var(--accent);
            box-shadow: 0 10px 30px rgba(16, 185, 129, 0.2);
        }

        .faq-question {
            color: var(--secondary);
            font-weight: 700;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.2rem;
            font-family: 'Times New Roman', Times, serif;
        }

        .faq-item p {
            color: var(--gray-dark);
            line-height: 1.7;
            font-family: 'Times New Roman', Times, serif;
        }

        /* Final CTA */
        .final-cta {
            padding: 100px 0;
            background: linear-gradient(135deg, var(--primary) 0%, #111827 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .final-cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 30% 70%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
        }

        .final-cta .section-title {
            color: var(--secondary);
        }

        .final-cta p {
            color: var(--accent-light);
            font-family: 'Times New Roman', Times, serif;
        }

        /* Footer */
        footer {
            background: #111827;
            padding: 50px 0;
            text-align: center;
            color: var(--gray);
            position: relative;
        }

        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }

        footer p {
            font-family: 'Times New Roman', Times, serif;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero {
                grid-template-columns: 1fr;
                gap: 40px;
                padding: 60px 0;
            }

            h1 {
                font-size: 2.8rem;
            }

            .subtitle {
                font-size: 1.2rem;
            }
            
            .price-comparison {
                flex-direction: column;
                gap: 15px;
            }
            
            .new-price {
                font-size: 3.2rem;
            }
            
            .benefits-grid,
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            
            .section-title {
                font-size: 2.2rem;
            }
            
            .ebook-cover,
            .pricing {
                padding: 30px 20px;
            }
        }