/* ===================================
   NEOTONICS LANDING PAGE STYLES
   Medical Professional Design Theme
   Mobile-First Responsive
   =================================== */

/* === ROOT VARIABLES === */
:root {
    /* Medical Professional Color Palette */
    --primary-blue: #1E40AF;
    --primary-light: #3B82F6;
    --primary-lighter: #93C5FD;
    --accent-blue: #06B6D4;
    --dark-bg: #0F172A;
    --light-bg: #F8FAFC;
    --white: #FFFFFF;
    --text-dark: #1a1a1a;
    --text-gray: #64748B;
    --border-color: #E2E8F0;
    --success: #10B981;
    --warning: #F59E0B;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* === RESET & BASE STYLES === */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Remove tap highlight */
* {
    -webkit-tap-highlight-color: transparent;
}

/* Prevent zoom on input focus (iOS) */
input,
select,
textarea {
    font-size: 16px;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

/* === CONTAINER === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 40px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 60px;
    }
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

h1 {
    font-size: 28px;
}

h2 {
    font-size: 24px;
}

h3 {
    font-size: 20px;
}

@media (min-width: 768px) {
    h1 {
        font-size: 36px;
    }
    
    h2 {
        font-size: 30px;
    }
    
    h3 {
        font-size: 24px;
    }
}

@media (min-width: 1024px) {
    h1 {
        font-size: 48px;
    }
    
    h2 {
        font-size: 36px;
    }
    
    h3 {
        font-size: 28px;
    }
}

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-blue);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
    margin: var(--spacing-sm) auto 0;
    border-radius: var(--radius-full);
}

/* === BUTTONS === */
.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 16px 32px;
    min-height: 48px;
    font-size: 16px;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    text-align: center;
    white-space: nowrap;
}

.cta-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-light));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

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

.cta-large {
    padding: 20px 40px;
    font-size: 18px;
    min-height: 56px;
}

.btn-arrow {
    font-size: 20px;
    transition: transform var(--transition-fast);
}

.cta-btn:hover .btn-arrow {
    transform: translateX(4px);
}

@media (max-width: 767px) {
    .cta-btn {
        width: 100%;
        max-width: 100%;
    }
}

/* === HEADER & NAVIGATION === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    padding: 8px 0;
}

.navbar {
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
}

.logo-icon {
    font-size: 28px;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    height: 24px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary-blue);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Menu */
.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    padding: 80px 20px 20px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: right var(--transition-normal);
    z-index: 999;
}

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

.nav-link {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.nav-btn-wrapper {
    display: block;
}

.nav-btn {
    width: 100%;
    padding: 14px 24px;
    background: var(--primary-blue);
    color: var(--white);
    font-size: 16px;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.nav-btn:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }
    
    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        flex-direction: row;
        align-items: center;
        padding: 0;
        box-shadow: none;
        background: transparent;
    }
    
    .nav-link {
        padding: 8px 16px;
    }
    
    .nav-btn-wrapper {
        display: inline-block;
    }
    
    .nav-btn {
        width: auto;
    }
}

/* === HERO SECTION === */
.hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

.hero-container {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-image {
    position: relative;
    text-align: center;
    animation: heroImageFadeIn 1s ease-out;
}

@keyframes heroImageFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(30px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.product-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(30, 64, 175, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.8;
    }
}

.hero-product-img {
    position: relative;
    z-index: 2;
    max-width: 400px;
    margin: 0 auto;
    animation: productFloat 4s ease-in-out infinite;
}

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

.floating-badge {
    position: absolute;
    z-index: 3;
    padding: 10px 20px;
    background: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-blue);
    white-space: nowrap;
}

.badge-1 {
    top: 10%;
    left: 0;
    animation: badgeFloat1 3s ease-in-out infinite;
}

.badge-2 {
    bottom: 10%;
    right: 0;
    animation: badgeFloat2 3s ease-in-out infinite 0.5s;
}

@keyframes badgeFloat1 {
    0%, 100% {
        transform: translateY(0) rotate(-5deg);
    }
    50% {
        transform: translateY(-10px) rotate(-5deg);
    }
}

@keyframes badgeFloat2 {
    0%, 100% {
        transform: translateY(0) rotate(5deg);
    }
    50% {
        transform: translateY(-10px) rotate(5deg);
    }
}

.hero-content {
    animation: heroContentFadeIn 1s ease-out 0.3s both;
}

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

.hero-title {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    color: var(--text-gray);
}

.trust-icon {
    width: 24px;
    height: 24px;
    color: var(--success);
}

@media (min-width: 768px) {
    .hero {
        padding: 140px 0 80px;
    }
    
    .hero-container {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-description {
        font-size: 18px;
    }
}

/* === WHY CHOOSE US === */
.why-choose {
    padding: 60px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-lighter);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
}

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

.feature-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 0;
}

@media (min-width: 576px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-xl);
    }
    
    .why-choose {
        padding: 80px 0;
    }
}

/* === WHAT IS SECTION === */
.what-is {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #FFFFFF 100%);
}

.what-is-content {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
}

.what-is-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
}

.what-is-image {
    text-align: center;
}

.what-is-image img {
    max-width: 500px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    .what-is {
        padding: 80px 0;
    }
    
    .what-is-content {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
    
    .what-is-text p {
        font-size: 17px;
    }
}

/* === HOW IT WORKS === */
.how-it-works {
    padding: 60px 0;
    background: var(--white);
}

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

.accordion-item {
    background: var(--light-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    border: 2px solid var(--border-color);
    transition: all var(--transition-normal);
}

.accordion-item:hover {
    border-color: var(--primary-lighter);
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    min-height: 44px;
    font-size: 18px;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-blue);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.accordion-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-blue);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

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

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

.accordion-content p {
    padding: 0 20px 20px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .how-it-works {
        padding: 80px 0;
    }
    
    .accordion-header {
        font-size: 20px;
    }
    
    .accordion-content p {
        font-size: 17px;
    }
}

/* === REVIEWS SECTION === */
.reviews {
    padding: 60px 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
}

.reviews-grid {
    display: grid;
    gap: var(--spacing-xl);
}

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

.review-card.animate-in {
    animation: reviewSlideIn 0.6s ease-out forwards;
}

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

.review-card:nth-child(2).animate-in {
    animation-delay: 0.2s;
}

.review-card:nth-child(3).animate-in {
    animation-delay: 0.4s;
}

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

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

.reviewer-photo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-lighter);
}

.reviewer-info h4 {
    margin-bottom: 4px;
    color: var(--primary-blue);
}

.reviewer-info p {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 4px;
}

.rating {
    color: #FBBF24;
    font-size: 18px;
}

.review-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-gray);
    font-style: italic;
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .reviews {
        padding: 80px 0;
    }
    
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* === PRICING SECTION === */
.pricing {
    padding: 60px 0;
    background: var(--white);
}

.pricing-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: var(--spacing-xl);
}

.countdown-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    border-radius: var(--radius-lg);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.timer-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--white);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.timer-value {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: var(--warning);
    line-height: 1;
}

.timer-label {
    font-size: 12px;
    color: var(--text-gray);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timer-separator {
    font-size: 32px;
    font-weight: var(--font-weight-bold);
    color: var(--warning);
}

.pricing-grid {
    display: grid;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.pricing-card {
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    border: 3px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
}

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

.pricing-featured {
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    border-color: var(--primary-blue);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #DC2626, #EF4444);
    color: var(--white);
    padding: 8px 24px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    box-shadow: var(--shadow-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-label {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--white);
    padding: 6px 20px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.pricing-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.pricing-duration {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
}

.pricing-image {
    max-width: 200px;
    margin: 0 auto var(--spacing-md);
}

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

.price-unit {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
}

.price-bottle {
    font-size: 16px;
    color: var(--text-gray);
    margin-left: 4px;
}

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

.price-old {
    font-size: 20px;
    color: var(--text-gray);
    text-decoration: line-through;
}

.price-new {
    font-size: 28px;
    font-weight: var(--font-weight-bold);
    color: var(--success);
}

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

.bonus-badge {
    display: inline-block;
    background: linear-gradient(135deg, #10B981, #059669);
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: var(--font-weight-semibold);
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 16px;
    background: var(--primary-blue);
    color: var(--white);
    font-size: 18px;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-normal);
    min-height: 50px;
}

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

.pricing-btn-featured {
    background: linear-gradient(135deg, var(--success), #059669);
}

.pricing-btn-featured:hover {
    background: linear-gradient(135deg, #059669, var(--success));
}

.payment-logos {
    max-width: 200px;
    margin: 0 auto;
    opacity: 0.7;
}

.rating-container {
    text-align: center;
    padding-top: var(--spacing-lg);
}

.rating-image {
    max-width: 200px;
    margin: 0 auto;
}

@media (min-width: 576px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .pricing {
        padding: 80px 0;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* === INGREDIENTS SECTION === */
.ingredients {
    padding: 60px 0;
    background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
}

.ingredients-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.ingredient-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--primary-blue);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.ingredient-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.ingredient-card p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-gray);
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .ingredients {
        padding: 80px 0;
    }
    
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
}

/* === SCIENTIFIC EVIDENCE === */
.scientific-evidence {
    padding: 60px 0;
    background: var(--white);
}

@media (min-width: 768px) {
    .scientific-evidence {
        padding: 80px 0;
    }
}

/* === GUARANTEE SECTION === */
.guarantee {
    padding: 60px 0;
    background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
}

.guarantee-content {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
}

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

.guarantee-item {
    margin-bottom: var(--spacing-lg);
}

.guarantee-item:last-child {
    margin-bottom: 0;
}

.guarantee-item h3 {
    color: var(--success);
    margin-bottom: var(--spacing-sm);
}

.guarantee-item p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .guarantee {
        padding: 80px 0;
    }
    
    .guarantee-content {
        grid-template-columns: 1fr 1.5fr;
        gap: 60px;
    }
}

/* === BENEFITS SECTION === */
.benefits {
    padding: 60px 0;
    background: var(--white);
}

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

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    background: var(--light-bg);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    transform: translateX(8px);
    background: #DBEAFE;
}

.benefit-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    color: var(--success);
}

.benefit-item h3 {
    font-size: 18px;
    color: var(--primary-blue);
    margin-bottom: 4px;
}

.benefit-item p {
    font-size: 15px;
    color: var(--text-gray);
    margin-bottom: 0;
}

@media (min-width: 768px) {
    .benefits {
        padding: 80px 0;
    }
}

/* === FAQ SECTION === */
.faq {
    padding: 60px 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

@media (min-width: 768px) {
    .faq {
        padding: 80px 0;
    }
}

/* === FINAL CTA === */
.final-cta {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-light));
    color: var(--white);
}

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

.final-cta-image {
    opacity: 0;
    transform: scale(0.8);
    animation: ctaImageZoom 1s ease-out forwards;
}

@keyframes ctaImageZoom {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.final-cta-image img {
    max-width: 400px;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.final-cta-text h2 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.final-price {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.final-price-old {
    font-size: 18px;
    text-decoration: line-through;
    opacity: 0.7;
}

.final-price-new {
    font-size: 36px;
    font-weight: var(--font-weight-bold);
    color: #FDE68A;
}

.cta-large {
    max-width: 500px;
    margin: 0 auto;
    background: var(--white);
    color: var(--primary-blue);
}

.cta-large:hover {
    background: #FDE68A;
}

.final-cta-guarantee {
    margin-top: var(--spacing-md);
    font-size: 14px;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .final-cta {
        padding: 80px 0;
    }
    
    .final-cta-content {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }
    
    .final-price-new {
        font-size: 48px;
    }
}

/* === FOOTER === */
.footer {
    padding: 40px 0 20px;
    background: var(--dark-bg);
    color: var(--white);
}

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

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

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

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

.footer-disclaimer {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.footer-disclaimer p {
    font-size: 13px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background: var(--primary-blue);
    transform: translateY(-4px);
}

.footer-social svg {
    width: 20px;
    height: 20px;
}

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

.footer-copyright p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

/* === SCROLL TO TOP BUTTON === */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 998;
}

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

.scroll-to-top:hover {
    background: var(--primary-light);
    transform: translateY(-4px);
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
    stroke-width: 3px;
}

/* === PURCHASE NOTIFICATION === */
.purchase-notification {
    position: fixed;
    bottom: -200px;
    left: 20px;
    max-width: 320px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-md);
    z-index: 997;
    transition: bottom var(--transition-normal);
}

.purchase-notification.show {
    bottom: 20px;
}

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

.notification-icon {
    font-size: 32px;
}

.notification-text {
    display: flex;
    flex-direction: column;
    font-size: 14px;
}

.notification-name {
    font-weight: var(--font-weight-semibold);
    color: var(--primary-blue);
}

.notification-location {
    font-size: 12px;
    color: var(--text-gray);
}

.notification-product {
    font-size: 13px;
    color: var(--text-dark);
}

@media (min-width: 768px) {
    .purchase-notification {
        left: 30px;
    }
}

/* === FADE IN ANIMATION === */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* === LOADING STATES === */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}