/* ============================================
   NEUROWAVE™ - MODERN COGNITIVE ENHANCEMENT
   ============================================ */

/* ============================================
   CSS VARIABLES & RESET
   ============================================ */

:root {
    /* Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --text-white: #ffffff;
    
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --bg-dark: #111827;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Typography */
    --font-primary: 'Montserrat', sans-serif;
    --font-display: 'Playfair Display', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
    font-family: var(--font-display);
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

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

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

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

/* ============================================
   UTILITY CLASSES
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    font-size: 1rem;
    white-space: nowrap;
}

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

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--text-white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-arrow {
    margin-left: var(--spacing-xs);
    transition: var(--transition-base);
}

.btn:hover .btn-arrow {
    transform: translateX(5px);
}

/* ============================================
   NAVIGATION
   ============================================ */

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    z-index: 1000;
    transition: all var(--transition-base);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0);
}

.main-nav.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

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

.nav-cta {
    background: var(--bg-gradient);
    color: var(--text-white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: var(--transition-base);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.3) 0%, transparent 50%);
    z-index: 0;
}

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

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
}

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

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    line-height: 1.6;
}

.hero-features {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 500;
}

.feature-icon {
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.timer-container {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.timer-label {
    font-size: 0.875rem;
    font-weight: 600;
    opacity: 0.9;
}

.countdown-timer {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
    font-weight: 700;
}

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

.timer-value {
    font-size: 2rem;
    line-height: 1;
}

.timer-label-small {
    font-size: 0.75rem;
    opacity: 0.8;
}

.timer-separator {
    font-size: 2rem;
    margin: 0 0.25rem;
}

.hero-image {
    position: relative;
}

.product-showcase {
    position: relative;
}

.product-img {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.product-badge {
    position: absolute;
    top: -20px;
    right: -20px;
    background: var(--accent-color);
    color: var(--text-white);
    padding: 1rem;
    border-radius: 50%;
    width: 120px;
    height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: pulse 2s infinite;
}

.badge-text {
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1;
}

.badge-subtext {
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.25rem;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--bg-white);
    clip-path: polygon(0 50%, 100% 0, 100% 100%, 0% 100%);
}

/* ============================================
   SECTION HEADERS
   ============================================ */

.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-family: var(--font-display);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   PRICING SECTION
   ============================================ */

.pricing-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.pricing-image {
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
    padding: var(--spacing-xxl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.about-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.about-description strong {
    color: var(--primary-color);
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */

.how-it-works-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.how-content {
    max-width: 900px;
    margin: 0 auto;
}

.how-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-size: 1.0625rem;
}

.how-description strong {
    color: var(--primary-color);
}

/* ============================================
   REVIEWS SECTION
   ============================================ */

.reviews-section {
    padding: var(--spacing-xxl) 0;
}

.rating-summary {
    margin-top: var(--spacing-md);
}

.stars {
    color: var(--accent-color);
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.rating-text {
    color: var(--text-light);
    font-size: 1rem;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

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

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

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

.reviewer-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.reviewer-info {
    flex: 1;
}

.reviewer-name {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.reviewer-location {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.review-stars {
    color: var(--accent-color);
    font-size: 1rem;
}

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

/* ============================================
   INGREDIENTS SECTION
   ============================================ */

.ingredients-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

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

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

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

.ingredient-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

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

.ingredient-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* ============================================
   USAGE SECTION
   ============================================ */

.usage-section {
    padding: var(--spacing-xxl) 0;
}

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

.step-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    transition: var(--transition-base);
}

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

.step-number {
    width: 60px;
    height: 60px;
    background: var(--bg-gradient);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

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

.step-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* ============================================
   GUARANTEE SECTION
   ============================================ */

.guarantee-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.guarantee-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

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

.guarantee-img {
    max-width: 250px;
    margin: 0 auto;
}

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

.guarantee-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

/* ============================================
   BENEFITS SECTION
   ============================================ */

.benefits-section {
    padding: var(--spacing-xxl) 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.benefit-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-base);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    background: var(--bg-white);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

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

.benefit-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* ============================================
   BONUSES SECTION
   ============================================ */

.bonuses-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

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

.bonus-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-lg);
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

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

.bonus-image {
    text-align: center;
}

.bonus-img {
    width: 100%;
    max-width: 180px;
    border-radius: var(--radius-md);
}

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

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

/* ============================================
   BUY SECTION
   ============================================ */

.buy-section {
    padding: var(--spacing-xxl) 0;
}

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

.buy-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    font-size: 1.0625rem;
    line-height: 1.8;
}

.buy-benefits {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.buy-benefits li {
    padding: 0.75rem 0;
    color: var(--text-dark);
    font-size: 1.0625rem;
    font-weight: 500;
}

.buy-cta {
    text-align: center;
}

/* ============================================
   FAQ SECTION
   ============================================ */

.faq-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

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

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

.faq-question {
    width: 100%;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-base);
}

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

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: var(--transition-base);
}

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

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

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

.faq-answer p {
    padding: 0 1.5rem 1.25rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* ============================================
   FINAL CTA SECTION
   ============================================ */

.final-cta-section {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

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

.cta-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-display);
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.cta-image {
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.cta-guarantee {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

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

.footer-links a {
    color: var(--text-white);
    opacity: 0.8;
    transition: var(--transition-base);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-info {
    margin-bottom: var(--spacing-xl);
}

.footer-text {
    color: var(--text-white);
    opacity: 0.7;
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.footer-text a {
    color: var(--primary-light);
    text-decoration: underline;
}

.footer-disclaimer {
    font-size: 0.875rem;
    opacity: 0.6;
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
}

.footer-bottom p {
    margin-bottom: var(--spacing-sm);
    opacity: 0.7;
}

.footer-legal {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: 0.875rem;
}

.footer-legal a {
    opacity: 0.7;
    transition: var(--transition-base);
}

.footer-legal a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-legal span {
    opacity: 0.5;
}

/* ============================================
   POPUPS
   ============================================ */

.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.popup-overlay.show {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.8);
    transition: var(--transition-base);
}

.popup-overlay.show .popup-content {
    transform: scale(1);
}

.popup-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
    transition: var(--transition-base);
}

.popup-close:hover {
    color: var(--text-dark);
    transform: rotate(90deg);
}

.popup-inner {
    text-align: center;
}

.popup-inner h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

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

.popup-subtext {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.popup-cta {
    display: inline-block;
    background: var(--bg-gradient);
    color: var(--text-white);
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: var(--transition-base);
}

.popup-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Purchase Notification */
.notification-popup {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: var(--bg-white);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    opacity: 0;
    transform: translateY(100px);
    transition: all var(--transition-base);
}

.notification-popup.show {
    opacity: 1;
    transform: translateY(0);
}

.notification-content {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.notification-icon {
    width: 40px;
    height: 40px;
    background: var(--success-color);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
}

.notification-name {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.notification-location {
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
}

/* ============================================
   SCROLL TO TOP
   ============================================ */

.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--bg-gradient);
    color: var(--text-white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

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

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-slide-up {
    animation: slideUp 1s ease-out;
}

.animate-slide-up.delay-1 {
    animation-delay: 0.2s;
    opacity: 0;
    animation-fill-mode: forwards;
}

.animate-slide-up.delay-2 {
    animation-delay: 0.4s;
    opacity: 0;
    animation-fill-mode: forwards;
}

.animate-slide-up.delay-3 {
    animation-delay: 0.6s;
    opacity: 0;
    animation-fill-mode: forwards;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content,
    .guarantee-content {
        grid-template-columns: 1fr;
    }
    
    .bonus-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .bonus-image {
        margin-bottom: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-section {
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .product-badge {
        width: 100px;
        height: 100px;
        top: 0;
        right: 0;
    }
    
    .badge-text {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .reviews-grid,
    .ingredients-grid,
    .usage-steps,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .notification-popup {
        left: 10px;
        right: 10px;
        bottom: 10px;
    }
    
    .popup-content {
        padding: var(--spacing-lg);
    }
    
    .popup-inner h3 {
        font-size: 1.5rem;
    }
    
    .scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .hero-cta {
        width: 100%;
    }
    
    .btn-large {
        width: 100%;
        padding: 1rem 1.5rem;
    }
    
    .timer-container {
        width: 100%;
    }
    
    .product-badge {
        width: 80px;
        height: 80px;
    }
    
    .badge-text {
        font-size: 0.875rem;
    }
    
    .badge-subtext {
        font-size: 0.625rem;
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}