/* ===================================
   VERTIFREE WEBSITE - STYLESHEET
   =================================== */

/* ===================================
   1. CSS VARIABLES & RESET
   =================================== */
:root {
    /* Colors */
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #22c55e;
    --warning-color: #ef4444;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* ===================================
   2. TYPOGRAPHY
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color var(--transition-base);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===================================
   3. UTILITY CLASSES
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text-dark);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    font-size: 1.125rem;
    color: var(--text-light);
}

.highlight {
    color: var(--primary-color);
}

.highlight-text {
    background-color: #fef3c7;
    padding: var(--spacing-md);
    border-left: 4px solid var(--secondary-color);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

.strikethrough {
    text-decoration: line-through;
    color: #9ca3af;
}

/* ===================================
   4. BUTTONS
   =================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-order {
    background-color: var(--secondary-color);
    color: #1f2937;
    font-weight: 700;
    width: 100%;
    padding: 1rem;
    font-size: 1.125rem;
}

.btn-order:hover {
    background-color: #d97706;
    transform: scale(1.02);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

.cta-btn {
    background-color: var(--secondary-color);
    color: var(--bg-white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.cta-btn:hover {
    background-color: #d97706;
}

/* ===================================
   5. HEADER & NAVIGATION
   =================================== */
.header {
    background-color: var(--primary-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

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

.logo h1 {
    font-size: 1.75rem;
    color: var(--bg-white);
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-menu a {
    color: var(--bg-white);
    font-weight: 500;
    transition: opacity var(--transition-base);
}

.nav-menu a:hover {
    opacity: 0.8;
}

/* ===================================
   6. HERO SECTION
   =================================== */
.hero-section {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    padding: var(--spacing-3xl) 0;
    color: var(--bg-white);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-headline {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--bg-white);
}

.hero-subheadline {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.95);
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.hero-cta {
    margin-bottom: var(--spacing-xl);
}

.trust-badges {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
}

.badge-icon {
    font-size: 1.25rem;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.rating-badge {
    position: absolute;
    bottom: -20px;
    right: 20px;
    background-color: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.rating-badge .stars {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.rating-badge p {
    font-size: 0.875rem;
    color: var(--text-dark);
    margin: 0;
}

/* ===================================
   7. REVIEWS PREVIEW
   =================================== */
.reviews-preview {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-light);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.review-card {
    background-color: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.review-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.reviewer-image {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.reviewer-name {
    font-size: 1.125rem;
    margin: 0;
}

.stars {
    color: var(--secondary-color);
    font-size: 1.125rem;
}

.review-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.review-text {
    color: var(--text-light);
    line-height: 1.7;
}

.reviewer-location {
    font-size: 0.875rem;
    color: var(--text-light);
    font-style: italic;
    margin-top: var(--spacing-sm);
}

.verified {
    font-size: 0.875rem;
    color: var(--success-color);
    font-weight: 600;
}

/* ===================================
   8. WHAT IS SECTION
   =================================== */
.what-is-section {
    padding: var(--spacing-3xl) 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.content-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.0625rem;
    line-height: 1.8;
}

.content-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* ===================================
   9. HOW IT WORKS
   =================================== */
.how-it-works {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-light);
}

.content-block p {
    max-width: 900px;
    margin: 0 auto var(--spacing-md);
    font-size: 1.0625rem;
    line-height: 1.8;
    text-align: center;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.step {
    background-color: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.step h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.step p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===================================
   10. INGREDIENTS SECTION
   =================================== */
.ingredients-section {
    padding: var(--spacing-3xl) 0;
}

.ingredients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.ingredient-card {
    background-color: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

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

.ingredient-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.ingredient-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.ingredient-card p {
    color: var(--text-light);
    line-height: 1.7;
}

.scientific-backing {
    background-color: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
}

.scientific-backing h3 {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.scientific-backing p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.0625rem;
}

/* ===================================
   11. WHY CHOOSE
   =================================== */
.why-choose {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-light);
}

/* ===================================
   12. BENEFITS SECTION
   =================================== */
.benefits-section {
    padding: var(--spacing-3xl) 0;
}

.benefits-list {
    max-width: 900px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.benefit-item:last-child {
    border-bottom: none;
}

.benefit-icon {
    width: 40px;
    height: 40px;
    background-color: var(--success-color);
    color: var(--bg-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.benefit-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===================================
   13. PRICING SECTION
   =================================== */
.pricing-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: var(--bg-white);
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.pricing-header .section-title {
    color: var(--bg-white);
}

.pricing-subtitle {
    font-size: 1.375rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.countdown-timer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 2rem;
    font-weight: 700;
    background-color: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    max-width: 300px;
    margin: 0 auto;
}

.time-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.time-value {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.time-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

.time-separator {
    font-size: 2rem;
    color: var(--bg-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.pricing-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    position: relative;
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-base);
}

.pricing-card:hover {
    transform: scale(1.03);
}

.pricing-card.featured {
    border: 3px solid var(--secondary-color);
    transform: scale(1.05);
}

.best-value-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background-color: var(--warning-color);
    color: var(--bg-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 0.875rem;
}

.package-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.package-header h3 {
    font-size: 1.125rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.package-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.package-supply {
    color: var(--primary-color);
    font-size: 1rem;
    margin: var(--spacing-xs) 0;
}

.package-savings {
    background-color: var(--bg-light);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-dark);
    margin-top: var(--spacing-sm);
}

.package-savings.highlight {
    background-color: var(--warning-color);
    color: var(--bg-white);
}

.package-image {
    text-align: center;
    margin: var(--spacing-lg) 0;
    position: relative;
}

.package-image img {
    max-height: 200px;
    margin: 0 auto;
}

.bonus-badge {
    background-color: var(--success-color);
    color: var(--bg-white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.package-price {
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.price-main {
    font-size: 3rem;
    font-weight: 700;
    color: var(--success-color);
}

.price-main span {
    font-size: 1.25rem;
    color: var(--text-light);
}

.price-retail {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

.package-features {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.feature-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--text-dark);
    font-weight: 600;
}

.feature-item img {
    width: 24px;
    height: 24px;
}

.customer-rating {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.customer-rating .stars {
    font-size: 2rem;
    color: var(--secondary-color);
}

.customer-rating p {
    color: var(--bg-white);
    font-size: 1.125rem;
}

.warning-message {
    background-color: rgba(239, 68, 68, 0.2);
    border: 2px solid var(--warning-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.warning-message p {
    color: var(--bg-white);
    font-size: 1.0625rem;
    margin: 0;
}

/* ===================================
   14. GUARANTEE SECTION
   =================================== */
.guarantee-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-light);
}

.guarantee-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.guarantee-badge img {
    max-width: 300px;
}

.guarantee-text h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.guarantee-text p {
    font-size: 1.0625rem;
    line-height: 1.8;
}

/* ===================================
   15. FULL REVIEWS SECTION
   =================================== */
.full-reviews-section {
    padding: var(--spacing-3xl) 0;
}

.reviews-container {
    max-width: 900px;
    margin: 0 auto;
}

.review-full {
    background-color: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.review-full h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.review-full p {
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

/* ===================================
   16. FAQ SECTION
   =================================== */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--bg-light);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background-color: var(--bg-white);
    border: none;
    cursor: pointer;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    transition: background-color var(--transition-base);
}

.faq-question:hover {
    background-color: var(--bg-light);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 400;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    padding: 0 var(--spacing-lg);
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

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

.faq-answer p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

/* ===================================
   17. FINAL CTA
   =================================== */
.final-cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.cta-image img {
    border-radius: var(--radius-xl);
}

.cta-text {
    color: var(--bg-white);
}

.cta-text h2 {
    font-size: 2.5rem;
    color: var(--bg-white);
    margin-bottom: var(--spacing-md);
}

.price-info {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.special-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-lg);
}

.secure-checkout {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.secure-checkout img {
    max-width: 300px;
    margin: 0 auto var(--spacing-sm);
}

.secure-checkout p {
    color: var(--bg-white);
    font-size: 1rem;
}

/* ===================================
   18. FOOTER
   =================================== */
.footer {
    background-color: #1f2937;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    color: #d1d5db;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-links a {
    color: #d1d5db;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--bg-white);
}

.footer-disclaimer {
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    font-size: 0.875rem;
    line-height: 1.7;
    color: #9ca3af;
    text-align: center;
}

.footer-copyright {
    text-align: center;
    font-size: 0.875rem;
    color: #9ca3af;
}

/* ===================================
   19. RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    
    .hero-content,
    .content-wrapper,
    .guarantee-content,
    .cta-content {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-headline {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .reviews-grid,
    .ingredients-grid,
    .features-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .btn-large {
        padding: 1rem 1.5rem;
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-3xl: 3rem;
        --spacing-2xl: 2rem;
    }
    
    .hero-headline {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .price-main {
        font-size: 2.5rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===================================
   21. PRINT STYLES
   =================================== */
@media print {
    .header,
    .pricing-section,
    .final-cta,
    .footer {
        display: none;
    }
}