:root {
    --whatsapp-green: #25D366;
    --whatsapp-dark: #128C7E;
    --whatsapp-darker: #075E54;
    --whatsapp-light: #DCF8C6;
    --whatsapp-blue: #34B7F1;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --red: #dc2626;
    --orange: #f59e0b;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
    --radius: 16px;
    --radius-sm: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
    top: 0 !important;
    position: static !important;
}

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

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(135deg, var(--whatsapp-darker) 0%, var(--whatsapp-dark) 100%);
    padding: 16px 0;
    box-shadow: var(--shadow);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--whatsapp-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--white);
}

/* Language Selector */
.language-selector {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 999;
}

.language-btn {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.language-btn:hover {
    transform: scale(1.1);
}

.language-btn svg {
    width: 26px;
    height: 26px;
    fill: var(--white);
}

.language-dropdown {
    position: absolute;
    top: 60px;
    right: 0;
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.language-selector.active .language-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--gray-800);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
}

.language-option:last-child {
    border-bottom: none;
}

.language-option:hover {
    background: var(--gray-50);
    color: var(--whatsapp-dark);
}

.language-option:first-child {
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.language-option:last-child {
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.language-option.active {
    background: var(--whatsapp-green);
    color: var(--white);
}

.flag-icon {
    font-size: 1.4rem;
    line-height: 1;
}

/* Hide Google Translate banner */
.goog-te-banner-frame,
.goog-te-gadget,
.skiptranslate {
    display: none !important;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--whatsapp-dark) 0%, var(--whatsapp-darker) 50%, #064e47 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    text-align: center;
    color: var(--white);
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 24px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero h1 span {
    color: var(--whatsapp-green);
}

.promise-box {
    display: inline-block;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    color: var(--white);
    padding: 16px 32px;
    border-radius: var(--radius);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.hero-description {
    font-size: 1.2rem;
    max-width: 650px;
    margin: 0 auto 32px;
    opacity: 0.95;
}

.author-badge {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: 16px 24px;
    border-radius: var(--radius);
    margin-bottom: 32px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.author-info {
    text-align: left;
}

.author-info h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.author-info p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, #1ebe5d 100%);
    color: var(--white);
    text-decoration: none;
    padding: 20px 48px;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 35px rgba(37, 211, 102, 0.5);
}

.cta-button.secondary {
    background: linear-gradient(135deg, var(--whatsapp-darker) 0%, var(--whatsapp-dark) 100%);
    box-shadow: 0 6px 25px rgba(7, 94, 84, 0.4);
}

.cta-button.secondary:hover {
    box-shadow: 0 10px 35px rgba(7, 94, 84, 0.5);
}

.price-tag {
    margin-top: 16px;
    font-size: 1.1rem;
    opacity: 0.95;
}

.price-tag strong {
    color: var(--whatsapp-green);
    font-size: 1.3rem;
}

.hero-image {
    margin-top: 48px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.phone-mockup {
    background: var(--gray-900);
    border-radius: 30px;
    padding: 10px;
    box-shadow: var(--shadow-lg);
    width: 200px;
}

.phone-screen {
    background: linear-gradient(180deg, var(--whatsapp-darker) 0%, var(--whatsapp-dark) 100%);
    border-radius: 22px;
    padding: 20px 15px;
    min-height: 300px;
}

.phone-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.phone-avatar {
    width: 35px;
    height: 35px;
    background: var(--whatsapp-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.phone-name {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
}

.chat-bubble {
    background: var(--whatsapp-light);
    color: var(--gray-800);
    padding: 10px 14px;
    border-radius: 12px;
    border-top-left-radius: 4px;
    margin-bottom: 10px;
    font-size: 0.8rem;
    max-width: 85%;
}

.chat-bubble.sent {
    background: #d9fdd3;
    margin-left: auto;
    border-top-left-radius: 12px;
    border-top-right-radius: 4px;
}

.chat-time {
    font-size: 0.65rem;
    color: var(--gray-600);
    text-align: right;
    margin-top: 4px;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--gray-800);
    margin-bottom: 16px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Problem Section */
.problem {
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.problem-card {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border-radius: var(--radius);
    padding: 32px;
    border-left: 4px solid var(--red);
}

.problem-card .icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.problem-card h3 {
    font-size: 1.2rem;
    color: var(--gray-800);
    margin-bottom: 12px;
}

.problem-card p {
    color: var(--gray-600);
}

/* Solution Section */
.solution {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.solution-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.solution-content p {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 24px;
    color: var(--gray-800);
}

.solution-highlight {
    background: linear-gradient(135deg, var(--whatsapp-dark) 0%, var(--whatsapp-darker) 100%);
    color: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    margin: 32px 0;
    font-size: 1.2rem;
    font-weight: 600;
}

/* What You Get */
.what-you-get {
    background: var(--white);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.card {
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--whatsapp-green);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--gray-800);
}

.card p {
    color: var(--gray-600);
    font-size: 1rem;
}

/* How It Works */
.how-it-works {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.step-card {
    text-align: center;
    padding: 40px 32px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0 auto 24px;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.step-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--gray-800);
}

.step-card p {
    color: var(--gray-600);
}

/* Benefits Section */
.benefits {
    background: linear-gradient(135deg, var(--whatsapp-darker) 0%, var(--whatsapp-dark) 100%);
    color: var(--white);
}

.benefits .section-title h2,
.benefits .section-title p {
    color: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.benefit-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.benefit-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.benefit-card p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Checkout Section */
.checkout {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.checkout-box {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.checkout-header {
    background: linear-gradient(135deg, var(--whatsapp-dark) 0%, var(--whatsapp-darker) 100%);
    color: var(--white);
    padding: 24px;
    text-align: center;
}

.checkout-header h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.checkout-body {
    padding: 32px;
}

.main-product {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}

.main-product h4 {
    font-size: 1.2rem;
    color: var(--gray-800);
}

.main-product span {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--whatsapp-dark);
}

.upsells-title {
    font-size: 1.1rem;
    color: var(--gray-800);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.upsell-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.upsell-item:hover {
    background: var(--gray-50);
}

.upsell-item.selected {
    border-color: var(--whatsapp-green);
    background: rgba(37, 211, 102, 0.1);
}

.upsell-checkbox {
    min-width: 90px;
    padding: 8px 12px;
    border: 2px solid var(--whatsapp-green);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
    background: var(--white);
}

.upsell-checkbox .add-text {
    color: var(--whatsapp-green);
    font-size: 0.85rem;
    font-weight: 600;
}

.upsell-checkbox .added-text {
    display: none;
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 600;
}

.upsell-item.selected .upsell-checkbox {
    background: var(--whatsapp-green);
    border-color: var(--whatsapp-green);
}

.upsell-item.selected .upsell-checkbox .add-text {
    display: none;
}

.upsell-item.selected .upsell-checkbox .added-text {
    display: block;
}

.upsell-content {
    flex: 1;
}

.upsell-content h5 {
    font-size: 1rem;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.upsell-content p {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.5;
}

.upsell-price {
    font-weight: 700;
    color: var(--whatsapp-dark);
    white-space: nowrap;
}

.checkout-summary {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 2px dashed var(--gray-200);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    color: var(--gray-600);
}

.summary-row.hidden {
    display: none;
}

.summary-row.total {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--gray-800);
    border-top: 2px solid var(--gray-200);
    padding-top: 16px;
    margin-top: 8px;
}

.summary-row.total span:last-child {
    color: var(--whatsapp-dark);
}

.checkout-cta {
    margin-top: 24px;
}

.checkout-cta .cta-button {
    width: 100%;
    text-align: center;
}

.checkout-note {
    text-align: center;
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* Guarantee */
.guarantee {
    background: var(--white);
}

.guarantee-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 48px;
}

.guarantee-badge {
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-dark) 100%);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    flex-shrink: 0;
    color: var(--white);
}

.guarantee-badge span:first-child {
    font-size: 2.5rem;
    font-weight: 800;
}

.guarantee-badge span:nth-child(2) {
    font-size: 1rem;
    font-weight: 600;
}

.guarantee-badge span:last-child {
    font-size: 0.9rem;
    opacity: 0.9;
}

.guarantee-text {
    flex: 1;
    min-width: 280px;
}

.guarantee-text h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--gray-800);
}

.guarantee-text p {
    color: var(--gray-600);
    margin-bottom: 12px;
}

/* Testimonials */
.testimonials {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--whatsapp-green);
}

.testimonial-text {
    font-style: italic;
    color: var(--gray-800);
    margin-bottom: 24px;
    font-size: 1.05rem;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--whatsapp-dark) 0%, var(--whatsapp-darker) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
}

.testimonial-info h4 {
    color: var(--gray-800);
    font-size: 1rem;
}

.testimonial-info p {
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* FAQ */
.faq {
    background: var(--white);
}

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

.faq-item {
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    overflow: hidden;
}

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--gray-800);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--gray-100);
}

.faq-icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
    color: var(--whatsapp-green);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding: 0 24px 20px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, var(--whatsapp-dark) 0%, var(--whatsapp-darker) 100%);
    color: var(--white);
    text-align: center;
}

.final-cta h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 24px;
}

.final-benefits {
    max-width: 600px;
    margin: 0 auto 32px;
    text-align: left;
}

.final-benefit {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 1.1rem;
}

.final-benefit span:first-child {
    font-size: 1.5rem;
}

.final-price {
    font-size: 2rem;
    margin-bottom: 24px;
}

.final-price strong {
    color: var(--whatsapp-green);
}

/* Footer */
footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: var(--whatsapp-green);
}

.footer-section p,
.footer-section a {
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
    line-height: 1.8;
    text-decoration: none;
    display: block;
}

.footer-section a:hover {
    color: var(--whatsapp-green);
}

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.social-link {
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--whatsapp-green);
}

.social-link svg {
    width: 22px;
    height: 22px;
    fill: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    text-align: center;
}

.disclaimer {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto 16px;
}

.copyright {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .promise-box {
        font-size: 1.1rem;
        padding: 12px 24px;
    }

    .author-badge {
        flex-direction: column;
        text-align: center;
    }

    .author-info {
        text-align: center;
    }

    .cta-button {
        padding: 16px 32px;
        font-size: 1.1rem;
    }

    section {
        padding: 60px 0;
    }

    .hero-image {
        flex-direction: column;
        align-items: center;
    }

    .phone-mockup {
        width: 180px;
    }

    .guarantee-content {
        flex-direction: column;
        text-align: center;
    }

    .guarantee-text {
        text-align: center;
    }

    .checkout-body {
        padding: 24px 16px;
    }

    .upsell-item {
        flex-wrap: wrap;
    }

    .upsell-price {
        width: 100%;
        text-align: right;
        margin-top: 8px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}