/* ============================================
   THEYAVUE - PREMIUM EYE HEALTH LANDING PAGE
   Medical Professional Design Theme
   Mobile-First Responsive Design
   ============================================ */

/* ============================================
   CSS VARIABLES & ROOT STYLES
   ============================================ */
:root {
    /* Medical Professional Color Palette */
    --primary-color: #1E40AF;
    --primary-light: #3B82F6;
    --primary-lighter: #93C5FD;
    --primary-dark: #1E3A8A;
    
    --secondary-color: #10B981;
    --accent-color: #F59E0B;
    --danger-color: #EF4444;
    
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    
    --bg-white: #FFFFFF;
    --bg-gray: #F9FAFB;
    --bg-light: #F3F4F6;
    
    --border-color: #E5E7EB;
    --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);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

/* ============================================
   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-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

ul, ol {
    list-style: none;
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

h1 {
    font-size: 28px;
}

h2 {
    font-size: 24px;
}

h3 {
    font-size: 20px;
}

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

@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;
    }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    text-align: center;
    white-space: nowrap;
    min-height: 48px;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
    box-shadow: var(--shadow-md);
}

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

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

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

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

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

/* Mobile full-width buttons */
@media (max-width: 576px) {
    .btn-large,
    .btn-hero,
    .btn-pricing,
    .btn-final-cta {
        width: 100%;
        padding: 16px 24px;
    }
}

/* ============================================
   SECTION STYLES
   ============================================ */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 12px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    margin: 16px auto 0;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 40px;
    }
    
    .section-subtitle {
        font-size: 20px;
    }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.navbar {
    padding: 16px 0;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-color);
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
}

.btn-nav {
    padding: 10px 24px;
    min-height: 44px;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 30px;
    justify-content: center;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.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, -7px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-white);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 32px;
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-slow);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        width: 100%;
    }
    
    .nav-link {
        font-size: 18px;
        width: 100%;
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .btn-nav {
        width: 100%;
        margin-top: 16px;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    padding-bottom: 60px;
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 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;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(30, 64, 175, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-image-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.hero-image-bg {
    position: absolute;
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(147, 197, 253, 0.2) 100%);
    border-radius: 50%;
    animation: pulse-glow 3s ease-in-out infinite;
    z-index: 0;
}

.hero-product-image {
    position: relative;
    z-index: 1;
    max-width: 320px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(30, 64, 175, 0.3));
    animation: float-product 4s ease-in-out infinite;
}

/* Floating Badges Animation */
.floating-badge {
    position: absolute;
    background: var(--bg-white);
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    animation: float-badge 3s ease-in-out infinite;
    white-space: nowrap;
    z-index: 2;
}

.badge-1 {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.badge-2 {
    top: 50%;
    right: 0%;
    animation-delay: 1s;
}

.badge-3 {
    bottom: 15%;
    left: 10%;
    animation-delay: 2s;
}

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

.hero-title {
    font-size: 32px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--primary-dark);
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.hero-cta {
    margin-top: 32px;
}

.trust-indicators {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.trust-icon {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 18px;
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    position: relative;
}

.scroll-arrow::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: scroll-dot 2s infinite;
}

@media (min-width: 768px) {
    .hero-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-description {
        font-size: 18px;
    }
    
    .trust-indicators {
        justify-content: flex-start;
    }
    
    .hero-image-container {
        min-height: 500px;
    }
    
    .hero-image-bg {
        width: 450px;
        height: 450px;
    }
    
    .hero-product-image {
        max-width: 400px;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 52px;
    }
    
    .hero-product-image {
        max-width: 500px;
    }
}

/* ============================================
   ANIMATIONS - HERO
   ============================================ */
@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-30px) rotate(5deg);
    }
}

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

@keyframes float-badge {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse-glow {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scroll-dot {
    0% {
        opacity: 1;
        top: 10px;
    }
    100% {
        opacity: 0;
        top: 30px;
    }
}

/* ============================================
   WHY CHOOSE US
   ============================================ */
.why-choose {
    background: var(--bg-white);
}

.badges-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.badge-card {
    background: var(--bg-white);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.badge-card[data-aos="slide-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

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

.badge-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
}

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

.badge-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.badge-description {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
}

@media (min-width: 576px) {
    .badges-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (min-width: 992px) {
    .badges-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   WHAT IS SECTION
   ============================================ */
.what-is {
    background: var(--bg-gray);
}

.what-is-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

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

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

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

.content-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

@media (min-width: 768px) {
    .what-is-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
    
    .what-is-content {
        order: 1;
    }
    
    .what-is-image {
        order: 2;
    }
}

/* ============================================
   HOW IT WORKS - ACCORDION
   ============================================ */
.how-it-works {
    background: var(--bg-white);
}

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

.accordion-item {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.accordion-header {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 20px 24px;
    background: var(--bg-white);
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-base);
    min-height: 44px;
}

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

.accordion-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.accordion-title {
    flex: 1;
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
}

.accordion-toggle {
    font-size: 28px;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

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

.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 24px 24px 68px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

@media (max-width: 576px) {
    .accordion-title {
        font-size: 16px;
    }
    
    .accordion-content p {
        padding: 0 20px 20px 20px;
    }
}

/* ============================================
   CUSTOMER REVIEWS
   ============================================ */
.reviews {
    background: var(--bg-gray);
}

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

.review-card {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px);
}

.review-card[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.6s ease-out forwards;
}

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

.review-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-light);
}

.review-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.review-location {
    font-size: 14px;
    color: var(--text-light);
}

.review-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
}

.star {
    color: #F59E0B;
    font-size: 20px;
}

.review-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.verified-badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

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

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

/* Review Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   PRICING SECTION
   ============================================ */
.pricing {
    background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
}

.countdown-timer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-bottom: 48px;
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    padding: 20px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.timer-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.2);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.timer-number {
    font-size: 40px;
    font-weight: 900;
    color: var(--bg-white);
    line-height: 1;
}

.timer-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.timer-separator {
    font-size: 40px;
    font-weight: 900;
    color: var(--bg-white);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 49% {
        opacity: 1;
    }
    50%, 100% {
        opacity: 0.3;
    }
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 48px;
}

.pricing-card {
    background: var(--bg-white);
    padding: 32px 24px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
}

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

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

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    color: var(--bg-white);
    padding: 8px 24px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    box-shadow: var(--shadow-md);
}

.pricing-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.pricing-supply {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.pricing-duration {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.pricing-image {
    margin: 24px 0;
}

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

.pricing-price {
    margin-bottom: 12px;
}

.price-per {
    font-size: 48px;
    font-weight: 900;
    color: var(--primary-dark);
    line-height: 1;
}

.price-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.pricing-total {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

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

.new-price {
    font-size: 32px;
    font-weight: 800;
    color: var(--secondary-color);
}

.pricing-badges {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.badge-pill {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
}

.btn-pricing {
    width: 100%;
    margin-bottom: 20px;
}

.payment-logos {
    margin-top: 16px;
}

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

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

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

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

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

/* ============================================
   INGREDIENTS
   ============================================ */
.ingredients {
    background: var(--bg-white);
}

.ingredients-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.ingredient-card {
    background: var(--bg-gray);
    padding: 24px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
    transition: all var(--transition-base);
}

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

.ingredient-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.ingredient-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

@media (min-width: 768px) {
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* ============================================
   SCIENTIFIC EVIDENCE
   ============================================ */
.scientific-evidence {
    background: var(--bg-gray);
}

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

.evidence-section {
    background: var(--bg-white);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-light);
}

.evidence-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
}

.evidence-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ============================================
   MONEY BACK GUARANTEE
   ============================================ */
.guarantee {
    background: var(--bg-white);
}

.guarantee-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

.guarantee-image img {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.guarantee-item {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
}

.guarantee-icon {
    font-size: 40px;
    flex-shrink: 0;
}

.guarantee-text h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.guarantee-text p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

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

/* ============================================
   BENEFITS
   ============================================ */
.benefits {
    background: var(--bg-gray);
}

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

.benefit-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 24px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.benefit-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #059669 100%);
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.benefit-text h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.benefit-text p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

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

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

.faq-item {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 20px 24px;
    background: var(--bg-white);
    cursor: pointer;
    text-align: left;
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
    transition: all var(--transition-base);
    min-height: 44px;
}

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

.faq-toggle {
    font-size: 28px;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: 16px;
}

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

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

.faq-item.active .faq-answer {
    max-height: 600px;
}

.faq-answer p {
    padding: 0 24px 24px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
}

@media (max-width: 576px) {
    .faq-question {
        font-size: 16px;
        padding: 16px 20px;
    }
}

/* ============================================
   FINAL CTA
   ============================================ */
.final-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
}

.final-cta-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

.final-cta-image img {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
    animation: float-product 4s ease-in-out infinite;
}

.final-cta-content {
    text-align: center;
}

.final-cta-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--bg-white);
    margin-bottom: 24px;
}

.final-cta-pricing {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.final-cta-old-price {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: line-through;
}

.final-cta-new-price {
    font-size: 42px;
    font-weight: 900;
    color: var(--bg-white);
}

.final-cta-description {
    font-size: 16px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

.btn-final-cta {
    background: var(--bg-white);
    color: var(--primary-color);
}

.btn-final-cta:hover {
    background: var(--bg-gray);
}

.final-cta-guarantee {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

@media (min-width: 768px) {
    .final-cta-wrapper {
        grid-template-columns: 1fr 1.5fr;
        gap: 60px;
    }
    
    .final-cta-content {
        text-align: left;
    }
    
    .final-cta-title {
        font-size: 36px;
    }
    
    .final-cta-guarantee {
        flex-direction: row;
        justify-content: flex-start;
        gap: 32px;
    }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

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

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 32px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 500;
    transition: color var(--transition-base);
}

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

.separator {
    color: rgba(255, 255, 255, 0.4);
}

.footer-disclaimer {
    max-width: 900px;
    margin: 0 auto 32px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

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

.footer-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 32px;
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

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

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

/* ============================================
   SCROLL TO TOP BUTTON
   ============================================ */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-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-base);
    z-index: 999;
}

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

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

/* ============================================
   POPUP NOTIFICATION
   ============================================ */
.popup-notification {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 90%;
    max-width: 500px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    z-index: 9999;
    opacity: 0;
    transition: all var(--transition-slow);
}

.popup-notification.active {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.popup-notification::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.popup-notification.active::before {
    opacity: 1;
}

.popup-content {
    position: relative;
    padding: 40px 32px;
}

.popup-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: var(--bg-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-secondary);
    transition: all var(--transition-base);
    cursor: pointer;
}

.popup-close:hover {
    background: var(--danger-color);
    color: var(--bg-white);
}

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

.popup-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.popup-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.popup-text {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.btn-popup {
    width: 100%;
}

/* Mobile Popup Optimization */
@media (max-width: 576px) {
    .popup-notification {
        width: 95%;
    }
    
    .popup-content {
        padding: 32px 24px;
    }
    
    .popup-title {
        font-size: 24px;
    }
    
    .popup-text {
        font-size: 16px;
    }
}

/* ============================================
   PURCHASE NOTIFICATION
   ============================================ */
.purchase-notification {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: var(--bg-white);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 998;
    transform: translateX(-400px);
    transition: transform var(--transition-slow);
    max-width: 320px;
}

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

.purchase-icon {
    width: 32px;
    height: 32px;
    background: var(--secondary-color);
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}

.purchase-text {
    font-size: 13px;
    line-height: 1.4;
    color: var(--text-primary);
}

.purchase-name {
    font-weight: 700;
    color: var(--primary-dark);
}

.purchase-location {
    color: var(--primary-color);
    font-weight: 600;
}

@media (max-width: 576px) {
    .purchase-notification {
        left: 20px;
        right: 20px;
        max-width: calc(100% - 40px);
        bottom: 20px;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

/* ============================================
   RESPONSIVE MEDIA QUERIES
   ============================================ */

/* Small phones */
@media (max-width: 320px) {
    .container {
        padding: 0 16px;
    }
    
    h1 { font-size: 24px; }
    h2 { font-size: 20px; }
    h3 { font-size: 18px; }
}

/* Tablets Portrait */
@media (min-width: 768px) and (max-width: 1023px) {
    :root {
        --section-padding: 60px 0;
    }
}

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

/* Print Styles */
@media print {
    .header,
    .scroll-to-top,
    .popup-notification,
    .purchase-notification,
    .hamburger {
        display: none !important;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}

/* ============================================
   LOADING STATES
   ============================================ */
.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* ============================================
   AOS (Animate On Scroll) Classes
   ============================================ */
[data-aos] {
    transition-property: transform, opacity;
    transition-duration: 0.6s;
    transition-timing-function: ease-out;
}

[data-aos="slide-up"] {
    transform: translateY(30px);
    opacity: 0;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
    opacity: 0;
}

[data-aos].aos-animate {
    transform: translateY(0);
    opacity: 1;
}

/* ============================================
   END OF STYLESHEET
   ============================================ */