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

html {
    overflow-x: hidden;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    max-width: 100vw;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.badges {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: bold;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.description {
    font-size: 1.2rem;
    line-height: 1.6;
    opacity: 0.95;
}

.book-mockup {
    display: flex;
    justify-content: center;
}

.book-placeholder {
    max-width: 300px;
    width: 100%;
    height: auto;
    aspect-ratio: 3/4;
    background: #f8f9fa;
    border: 2px solid #ddd;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #666;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.book-image {
    max-width: 300px;
    width: 100%;
    height: auto;
    aspect-ratio: 3/4;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.book-image:hover {
    transform: scale(1.05);
}

.book-image.small {
    max-width: 150px;
    width: 100%;
    height: auto;
    aspect-ratio: 3/4;
}

/* Special Edition Section */
.special-edition {
    padding: 80px 0;
    background: #f8f9fa;
}

.special-edition h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature i {
    font-size: 3rem;
    color: #667eea;
    margin-bottom: 20px;
}

.feature p {
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Warning Section */
.warning {
    padding: 80px 0;
    background: #fff3cd;
    border-top: 5px solid #ffc107;
    border-bottom: 5px solid #ffc107;
}

.warning h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 30px;
    color: #856404;
    font-weight: bold;
}

.warning > .container > p {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 50px;
    color: #856404;
}

.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.benefit {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.benefit i {
    font-size: 2.5rem;
    color: #ffc107;
    margin-top: 10px;
    flex-shrink: 0;
}

.benefit p {
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Second Book Section */
.second-book {
    padding: 80px 0;
    background: #e8f5e8;
}

.second-book h2 {
    text-align: center;
    font-size: 2.3rem;
    margin-bottom: 50px;
    color: #2d5a2d;
}

.book-combo {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.combo-text h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: #2d5a2d;
}

.combo-text ul {
    list-style: none;
    padding: 0;
}

.combo-text li {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 20px;
    padding-left: 30px;
    position: relative;
}

.combo-text li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
    font-size: 1.2rem;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    background: #f8f9fa;
}

.pricing h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

.pricing-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.pricing-option {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

.pricing-option:hover {
    transform: translateY(-5px);
}

.pricing-option.featured {
    border: 3px solid #28a745;
    transform: scale(1.05);
}

.popular {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #28a745;
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: bold;
}

.pricing-option h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #333;
}

.pricing-option p {
    font-size: 1rem;
    margin-bottom: 20px;
    color: #666;
    line-height: 1.5;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    color: #28a745;
    margin: 20px 0;
}

.promo {
    font-size: 1rem;
    color: #dc3545;
    font-weight: normal;
}

.shipping {
    font-size: 1rem;
    color: #666;
    margin-bottom: 30px;
}

.btn-primary {
    background: #667eea;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-2px);
}

.shipping-note {
    text-align: center;
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}

/* Freight Calculator */
.freight-calculator {
    background: #f0f8ff;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    border: 2px solid #4a90e2;
}

.freight-calculator h4 {
    color: #2c5282;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.freight-options {
    margin-bottom: 20px;
}

.freight-options .form-group {
    margin-bottom: 10px;
}

.freight-options label {
    display: flex;
    align-items: center;
    font-weight: normal;
    cursor: pointer;
    padding: 8px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.freight-options label:hover {
    background-color: rgba(74, 144, 226, 0.1);
}

.freight-options input[type="radio"] {
    margin-right: 10px;
    width: auto;
}

.btn-calculate {
    background: #4a90e2;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.btn-calculate:hover {
    background: #357abd;
}

.freight-result {
    margin-top: 15px;
    padding: 15px;
    background: white;
    border-radius: 5px;
    border: 1px solid #ddd;
    display: none;
}

.freight-result.show {
    display: block;
}

.fixed-freight {
    padding: 15px;
    background: white;
    border-radius: 5px;
    border: 1px solid #ddd;
}

.fixed-freight p {
    margin: 0;
    color: #28a745;
    font-weight: bold;
}

/* Form Section */
.form-section {
    padding: 80px 0;
    background: white;
}

.form-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

.purchase-form {
    max-width: 600px;
    margin: 0 auto;
    background: #f8f9fa;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.selected-option {
    background: #e8f5e8;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid #28a745;
    display: none; /* Hidden by default */
}

.selected-option.show {
    display: block; /* Show when has content */
}

.payment-info {
    background: #fff3cd;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid #ffc107;
    display: none; /* Hidden by default */
}

.payment-info.show {
    display: block; /* Show when has content */
}

.btn-submit {
    background: #28a745;
    color: white;
    border: none;
    padding: 18px 40px;
    border-radius: 25px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    margin-top: 20px;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background: #218838;
    transform: translateY(-2px);
}

/* QR Code Styles */
.qr-code-container {
    text-align: center;
    margin: 20px 0;
    padding: 20px;
    background: white;
    border-radius: 10px;
    border: 2px solid #e9ecef;
}

.qr-code-container h5 {
    color: #28a745;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.qr-code-container img {
    max-width: 200px;
    border: 2px solid #ddd;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.pix-code {
    background: #f8f9fa;
    padding: 10px;
    border-radius: 5px;
    font-family: monospace;
    font-size: 0.8rem;
    word-break: break-all;
    border: 1px solid #dee2e6;
    margin-top: 10px;
}

/* Payment Methods */
.payment-methods {
    padding: 80px 0;
    background: #f8f9fa;
}

.payment-methods h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

.payment-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.payment-option {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.payment-option h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #333;
}

.payment-option ul {
    list-style: none;
    padding: 0;
}

.payment-option li {
    font-size: 1rem;
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
    line-height: 1.5;
}

.payment-option li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.security-warning {
    background: #f8d7da;
    padding: 30px;
    border-radius: 15px;
    border: 2px solid #dc3545;
}

.security-warning h3 {
    color: #721c24;
    font-size: 1.3rem;
    margin-bottom: 20px;
    text-align: center;
}

.security-warning ul {
    list-style: none;
    padding: 0;
}

.security-warning li {
    font-size: 1rem;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
    color: #721c24;
}

.security-warning li::before {
    content: "⚠";
    position: absolute;
    left: 0;
    color: #dc3545;
}

/* Book Details */
.book-details {
    padding: 80px 0;
    background: white;
}

.book-details h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
}

.books-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 60px;
}

.book-info {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.book-info .book-placeholder {
    width: 150px;
    height: 200px;
    flex-shrink: 0;
}

.book-specs h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #333;
    line-height: 1.3;
}

.book-specs p {
    font-size: 1rem;
    margin-bottom: 10px;
    color: #666;
}

/* Authors Section */
.authors {
    padding: 80px 0;
    background: white;
}

.authors h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #333;
}

.authors-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
}

.author {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    align-items: start;
    padding: 40px;
    background: #f8f9fa;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.author:hover {
    transform: translateY(-5px);
}

.author:nth-child(even) {
    grid-template-columns: 1fr 200px;
}

.author:nth-child(even) .author-photo {
    order: 2;
}

.author:nth-child(even) .author-info {
    order: 1;
    text-align: right;
}

.author-photo {
    display: flex;
    justify-content: center;
    align-items: center;
}

.author-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid #667eea;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.author-image:hover {
    transform: scale(1.05);
}

.author-info h3 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 8px;
    font-weight: bold;
}

.author-info h4 {
    font-size: 1.2rem;
    color: #667eea;
    margin-bottom: 20px;
    font-weight: 600;
    font-style: italic;
}

.author-info p {
    font-size: 1rem;
    line-height: 1.6;
    color: #666;
    margin-bottom: 15px;
}

.author-info p:last-child {
    margin-bottom: 0;
    font-weight: 600;
    color: #28a745;
}

/* Testimonials */
.testimonials {
    padding: 80px 0;
    background: #f8f9fa;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #333;
}

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

.testimonial {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #28a745;
}

.testimonial h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #28a745;
}

.testimonial p {
    font-size: 1rem;
    line-height: 1.6;
    color: #666;
    font-style: italic;
}

/* Urgency Section */
.urgency {
    padding: 80px 0;
    background: #CC4E00;
    color: white;
}

.urgency h2 {
    text-align: center;
    font-size: 2.3rem;
    margin-bottom: 50px;
    font-weight: bold;
}

.urgency-reasons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.reason {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
}

.reason i {
    font-size: 3rem;
    margin-bottom: 20px;
    color: #ffc107;
}

.reason p {
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer h3, .footer h4 {
    margin-bottom: 15px;
    color: #ffc107;
}

.footer p {
    margin-bottom: 5px;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    opacity: 0.8;
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #128c7e;
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
        line-height: 1.1;
    }
    
    .book-combo {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .pricing-table {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .books-info {
        grid-template-columns: 1fr;
    }
    
    .book-info {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .book-placeholder,
    .book-image {
        margin: 0 auto;
        max-width: 200px;
    }
    
    .container {
        padding: 0 15px;
        overflow-x: hidden;
    }
    
    section {
        padding: 60px 0 !important;
        overflow-x: hidden;
    }
    
    .features,
    .benefits,
    .urgency-reasons,
    .testimonial-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .payment-options {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* Authors responsive */
    .author {
        grid-template-columns: 1fr !important;
        text-align: center !important;
        gap: 25px;
    }
    
    .author:nth-child(even) .author-info {
        text-align: center !important;
    }
    
    .author-image {
        width: 150px;
        height: 150px;
    }
    
    .author-info h3 {
        font-size: 1.5rem;
    }
    
    .author-info h4 {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .description {
        font-size: 1rem;
    }
    
    .badges {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .badge {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .purchase-form {
        padding: 15px;
        margin: 0 10px;
    }
    
    .book-placeholder,
    .book-image {
        max-width: 150px;
    }
    
    .book-image.small {
        max-width: 100px;
    }
    
    .container {
        padding: 0 10px;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
    
    .features,
    .benefits {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .feature,
    .benefit {
        padding: 20px 15px;
    }
}