/* ============================================
   VITTABURN LANDING PAGE - STYLES.CSS
   Modern Gradient Design with Mobile-First Approach
   ============================================ */

/* CSS Variables for Consistent Theming */
:root {
    /* Color Palette - Modern Gradient Theme */
    --primary-gradient: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    --primary-color: #4F46E5;
    --secondary-color: #06B6D4;
    --accent-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --black: #000000;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', 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: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* 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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Container */
    --container-max-width: 1200px;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-secondary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2rem; } /* 32px on mobile */
h2 { font-size: 1.75rem; } /* 28px on mobile */
h3 { font-size: 1.5rem; } /* 24px on mobile */
h4 { font-size: 1.25rem; } /* 20px on mobile */
h5 { font-size: 1.125rem; } /* 18px on mobile */
h6 { font-size: 1rem; } /* 16px on mobile */

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

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

a:hover {
    color: var(--secondary-color);
}

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

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Section Styles */
section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    font-size: 1.125rem;
}

.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.5rem;
    min-height: 48px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-large {
    padding: 1.125rem 2rem;
    font-size: 1.125rem;
    min-height: 56px;
}

.btn-cta {
    animation: pulse 2s infinite;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.btn-atc-img {
    max-width: 180px;
    height: auto;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Touch feedback for mobile */
@media (hover: none) and (pointer: coarse) {
    .btn:active {
        transform: scale(0.98);
    }
}

/* ============================================
   NAVIGATION MENU (Section 1)
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem var(--spacing-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.brand-logo span {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--gray-900);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Navigation Menu */
.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background: var(--white);
    box-shadow: var(--shadow-2xl);
    padding: 5rem var(--spacing-lg) var(--spacing-lg);
    transition: right var(--transition-normal);
    overflow-y: auto;
}

.nav-menu.active {
    right: 0;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.nav-link {
    display: block;
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--gray-700);
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-cta {
    width: 100%;
}

/* ============================================
   HERO SECTION (Section 2)
   ============================================ */
.hero {
    position: relative;
    padding-top: calc(60px + var(--spacing-2xl));
    padding-bottom: var(--spacing-3xl);
    overflow: hidden;
}

.hero-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(79, 70, 229, 0.05) 0%, 
        rgba(6, 182, 212, 0.05) 100%);
    z-index: -1;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.hero-image {
    order: 1;
}

.product-showcase {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
}

.product-image {
    position: relative;
    max-width: 100%;
    height: auto;
    z-index: 2;
}

.product-image.floating {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, 
        rgba(79, 70, 229, 0.3) 0%, 
        transparent 70%);
    filter: blur(40px);
    animation: glow-pulse 2s ease-in-out infinite;
    z-index: 1;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-text {
    order: 2;
}

.hero-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
}

.pulse-animation {
    animation: pulse-cta 2s ease-in-out infinite;
}

@keyframes pulse-cta {
    0%, 100% { 
        transform: scale(1); 
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    }
    50% { 
        transform: scale(1.02); 
        box-shadow: 0 20px 25px -5px rgba(79, 70, 229, 0.3);
    }
}

/* ============================================
   WHY CHOOSE US (Section 3)
   ============================================ */
.why-choose {
    background: var(--gray-50);
}

.badges-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.badge-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.badge-card.animated {
    animation: slideUp 0.6s ease forwards;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.badge-card:hover {
    transform: translateY(-8px) rotate(2deg);
    box-shadow: var(--shadow-xl);
}

.badge-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
}

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

.badge-title {
    font-size: 1.25rem;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.badge-description {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ============================================
   WHAT IS PRODUCT (Section 4)
   ============================================ */
.what-is-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.what-is-text {
    order: 2;
}

.what-is-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
}

.what-is-image {
    order: 1;
}

.rounded-image {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   HOW IT WORKS (Section 5)
   ============================================ */
.how-it-works {
    background: var(--gray-50);
}

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

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

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    min-height: 44px;
    background: var(--white);
    border: none;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    color: var(--gray-900);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.accordion-header:hover {
    background: var(--gray-50);
}

.accordion-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: var(--primary-gradient);
    color: var(--white);
    border-radius: var(--radius-full);
    font-weight: 700;
}

.accordion-title {
    flex: 1;
}

.accordion-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform var(--transition-normal);
}

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

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

.accordion-content p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================================
   CUSTOMER REVIEWS (Section 6)
   ============================================ */
.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.review-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateX(-30px);
    transition: all var(--transition-normal);
}

.review-card.animated {
    animation: fadeInSlide 0.6s ease forwards;
}

@keyframes fadeInSlide {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.review-avatar {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.review-name {
    font-size: 1.125rem;
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.review-location {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.review-rating {
    margin-bottom: var(--spacing-sm);
}

.review-rating img {
    max-width: 120px;
    height: auto;
}

.review-text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--gray-700);
    font-style: italic;
}

/* ============================================
   PRICING SECTION (Section 7 & 13)
   ============================================ */
.pricing {
    background: linear-gradient(135deg, 
        rgba(79, 70, 229, 0.03) 0%, 
        rgba(6, 182, 212, 0.03) 100%);
}

.countdown-timer {
    max-width: 500px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.timer-label {
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.timer-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.timer-block {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.timer-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    color: var(--white);
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.timer-separator {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.timer-label-small {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: var(--spacing-xs);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.pricing-card {
    position: relative;
    background: var(--white);
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.pricing-card.most-popular {
    border: 3px solid var(--primary-color);
    background: linear-gradient(135deg, 
        rgba(79, 70, 229, 0.05) 0%, 
        rgba(6, 182, 212, 0.05) 100%);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-gradient);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
}

.pricing-label {
    display: inline-block;
    background: var(--gray-100);
    color: var(--gray-700);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.pricing-package {
    font-size: 1.5rem;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.pricing-supply {
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.pricing-image {
    margin: var(--spacing-lg) auto;
    max-width: 200px;
}

.pricing-price {
    margin-bottom: var(--spacing-sm);
}

.price-per-bottle {
    display: block;
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-label {
    display: block;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.pricing-total {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.price-old {
    font-size: 1.25rem;
    color: var(--gray-500);
    text-decoration: line-through;
}

.price-new {
    font-size: 2rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-badges {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.bonus-badge {
    background: var(--accent-color);
    color: var(--white);
}

.shipping-badge {
    background: var(--warning-color);
    color: var(--white);
}

.pricing-btn {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.payment-logos {
    max-width: 300px;
    margin: 0 auto;
}

.pricing-rating {
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
}

.pricing-rating img {
    max-width: 150px;
    margin: 0 auto var(--spacing-sm);
}

.pricing-rating p {
    color: var(--gray-600);
    font-size: 0.9375rem;
}

/* ============================================
   INGREDIENTS (Section 9)
   ============================================ */
.ingredients {
    background: var(--gray-50);
}

.ingredients-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.ingredient-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.ingredient-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.ingredient-name {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.ingredient-description {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.ingredient-benefits {
    padding: var(--spacing-sm);
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    color: var(--gray-700);
}

.ingredient-benefits strong {
    color: var(--primary-color);
}

/* ============================================
   SCIENTIFIC EVIDENCE (Section 10)
   ============================================ */
.evidence-accordion {
    max-width: 900px;
    margin: 0 auto;
}

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

.evidence-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    min-height: 44px;
    background: var(--white);
    border: none;
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 600;
    text-align: left;
    color: var(--gray-900);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.evidence-header:hover {
    background: var(--gray-50);
}

.evidence-title {
    flex: 1;
}

.evidence-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform var(--transition-normal);
}

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

.evidence-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.evidence-item.active .evidence-content {
    max-height: 800px;
}

.evidence-content p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--gray-700);
    line-height: 1.7;
    font-size: 0.9375rem;
}

.evidence-content strong {
    color: var(--primary-color);
}

/* ============================================
   MONEY BACK GUARANTEE (Section 11)
   ============================================ */
.guarantee {
    background: var(--gray-50);
}

.guarantee-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.guarantee-image {
    order: 1;
    max-width: 300px;
    margin: 0 auto;
}

.guarantee-text {
    order: 2;
}

.guarantee-points {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.guarantee-point {
    display: flex;
    gap: var(--spacing-md);
}

.point-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-color);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    font-weight: 700;
}

.point-content h3 {
    font-size: 1.125rem;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.point-content p {
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================================
   BENEFITS (Section 12)
   ============================================ */
.benefits-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.benefit-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    color: var(--white);
    border-radius: var(--radius-md);
}

.benefit-text h3 {
    font-size: 1.125rem;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.benefit-text p {
    color: var(--gray-700);
    line-height: 1.6;
    margin: 0;
}

/* ============================================
   FAQ SECTION (Section 14)
   ============================================ */
.faq {
    background: var(--gray-50);
}

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

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

.faq-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    min-height: 44px;
    background: var(--white);
    border: none;
    font-family: var(--font-primary);
    font-size: 1.125rem;
    font-weight: 600;
    text-align: left;
    color: var(--gray-900);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-header:hover {
    background: var(--gray-50);
}

.faq-question {
    flex: 1;
    padding-right: var(--spacing-sm);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform var(--transition-normal);
}

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

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

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

.faq-content p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--gray-700);
    line-height: 1.7;
}

/* ============================================
   FINAL CTA (Section 15)
   ============================================ */
.final-cta {
    background: linear-gradient(135deg, 
        rgba(79, 70, 229, 0.05) 0%, 
        rgba(6, 182, 212, 0.05) 100%);
}

.final-cta-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
    text-align: center;
}

.final-cta-image {
    order: 1;
    max-width: 300px;
}

.bottles-showcase {
    animation: float 3s ease-in-out infinite;
}

.final-cta-text {
    order: 2;
}

.final-cta-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.final-cta-subtitle {
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.final-cta-pricing {
    margin-bottom: var(--spacing-lg);
}

.final-price-old {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xs);
}

.final-price-old span {
    text-decoration: line-through;
}

.final-price-new {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
}

.price-highlight {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.final-cta-btn {
    margin-bottom: var(--spacing-md);
}

.final-cta-note {
    color: var(--gray-700);
    line-height: 1.8;
    font-size: 0.9375rem;
}

/* ============================================
   FOOTER (Section 16)
   ============================================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-column {
    text-align: center;
}

.footer-title {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

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

.social-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-full);
    color: var(--gray-400);
    transition: all var(--transition-normal);
}

.social-icon:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-4px);
}

.footer-disclaimer {
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.footer-disclaimer p {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--gray-400);
    text-align: center;
}

.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-800);
}

.footer-copyright p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ============================================
   SCROLL TO TOP BUTTON
   ============================================ */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

/* ============================================
   PURCHASE NOTIFICATION POPUP
   ============================================ */
.purchase-notification {
    position: fixed;
    bottom: 20px;
    left: 20px;
    max-width: 300px;
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-2xl);
    transform: translateX(-120%);
    transition: transform var(--transition-normal);
    z-index: 998;
}

.purchase-notification.show {
    transform: translateX(0);
}

.notification-content {
    display: flex;
    gap: var(--spacing-sm);
}

.notification-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-color);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 1.25rem;
}

.notification-text {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-700);
}

.notification-text strong {
    color: var(--gray-900);
}

.notification-time {
    color: var(--gray-500);
    font-size: 0.75rem;
}

/* ============================================
   EXIT INTENT POPUP
   ============================================ */
.exit-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.exit-popup.show {
    display: flex;
}

.exit-popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
}

.exit-popup-content {
    position: relative;
    max-width: 500px;
    width: 90%;
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    text-align: center;
    animation: popupSlideIn 0.4s ease;
}

@keyframes popupSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.exit-popup-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.exit-popup-close:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

.exit-popup-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.exit-popup-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.exit-popup-subtitle .highlight {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.exit-popup-text {
    color: var(--gray-700);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.exit-popup-btn {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.exit-popup-note {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* ============================================
   TABLET STYLES (768px and up)
   ============================================ */
@media (min-width: 768px) {
    /* Typography */
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    
    /* Container */
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    /* Navigation */
    .hamburger {
        display: none;
    }
    
    .nav-menu {
        position: static;
        width: auto;
        max-width: none;
        height: auto;
        background: transparent;
        box-shadow: none;
        padding: 0;
        display: flex;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    .nav-links {
        flex-direction: row;
        gap: var(--spacing-lg);
        margin-bottom: 0;
    }
    
    .nav-link {
        font-size: 1rem;
    }
    
    .nav-cta {
        width: auto;
    }
    
    /* Hero */
    .hero-content {
        flex-direction: row;
        align-items: center;
    }
    
    .hero-image {
        order: 2;
        flex: 1;
    }
    
    .hero-text {
        order: 1;
        flex: 1;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    /* Badges Grid */
    .badges-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* What Is */
    .what-is-content {
        flex-direction: row;
        align-items: center;
    }
    
    .what-is-text {
        order: 1;
        flex: 1;
    }
    
    .what-is-image {
        order: 2;
        flex: 1;
    }
    
    /* Reviews Grid */
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Pricing Grid */
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Ingredients Grid */
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Guarantee */
    .guarantee-content {
        flex-direction: row;
        align-items: center;
    }
    
    .guarantee-image {
        order: 1;
        flex: 1;
    }
    
    .guarantee-text {
        order: 2;
        flex: 1;
    }
    
    /* Footer */
    .footer-content {
        flex-direction: row;
        justify-content: space-around;
    }
    
    .footer-column {
        text-align: left;
    }
    
    .social-icons {
        justify-content: flex-start;
    }
}

/* ============================================
   DESKTOP STYLES (1024px and up)
   ============================================ */
@media (min-width: 1024px) {
    /* Typography */
    h1 { font-size: 3rem; }
    h2 { font-size: 2.25rem; }
    
    section {
        padding: var(--spacing-3xl) 0;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    /* Hero */
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    /* Badges Grid */
    .badges-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Reviews Grid */
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Pricing Grid */
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Ingredients Grid */
    .ingredients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Timer */
    .timer-number {
        width: 100px;
        height: 100px;
        font-size: 2.5rem;
    }
    
    /* Final CTA */
    .final-cta-content {
        flex-direction: row;
        text-align: left;
    }
    
    .final-cta-image {
        order: 1;
        flex: 1;
    }
    
    .final-cta-text {
        order: 2;
        flex: 1;
    }
}

/* ============================================
   LARGE DESKTOP STYLES (1440px and up)
   ============================================ */
@media (min-width: 1440px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
}

/* ============================================
   ACCESSIBILITY & REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .scroll-to-top,
    .purchase-notification,
    .exit-popup {
        display: none !important;
    }
}