/* ===================================
   NEUROPRIME LANDING PAGE
   MEDICAL PROFESSIONAL DESIGN
   Colors: #1E40AF, #3B82F6, #93C5FD
   Mobile-First Responsive Design
   =================================== */

/* ===================================
   CSS CUSTOM PROPERTIES
   =================================== */
:root {
    --color-primary: #1E40AF;
    --color-primary-light: #3B82F6;
    --color-primary-lighter: #93C5FD;
    --color-secondary: #0EA5E9;
    --color-accent: #06B6D4;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;
    
    --gradient-primary: linear-gradient(135deg, #1E40AF 0%, #3B82F6 50%, #93C5FD 100%);
    --gradient-secondary: linear-gradient(135deg, #0EA5E9 0%, #06B6D4 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(30, 64, 175, 0.95), rgba(59, 130, 246, 0.95));
    
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.12);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
    --shadow-blue: 0 10px 30px rgba(30, 64, 175, 0.3);
    
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --border-radius-full: 9999px;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    --container-max: 1200px;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-gray-800);
    background: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1 {
    font-size: clamp(1.75rem, 5vw, 3rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

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

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

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

input, select, textarea, button {
    font-size: 16px;
}

ul {
    list-style: none;
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.container {
    max-width: var(--container-max);
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   SECTION TITLES
   =================================== */
.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
    position: relative;
}

.section-subtitle {
    text-align: center;
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   NAVIGATION HEADER
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.header.scrolled {
    padding: 0;
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.98);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-sm) 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--color-primary);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    letter-spacing: 0.5px;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
    padding: 10px;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--color-primary);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.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);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--color-gray-700);
    font-weight: 500;
    transition: all var(--transition-normal);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary);
    outline: none;
}

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

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

.nav-cta {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-full);
    font-weight: 600;
    transition: all var(--transition-normal);
    min-height: 48px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.nav-cta:hover,
.nav-cta:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero-section {
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 50%, #BFDBFE 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary-light);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particles 15s infinite ease-in-out;
}

.particle:nth-child(1) {
    left: 10%;
    top: 20%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    left: 80%;
    top: 30%;
    animation-delay: 2s;
}

.particle:nth-child(3) {
    left: 30%;
    top: 70%;
    animation-delay: 4s;
}

.particle:nth-child(4) {
    left: 70%;
    top: 60%;
    animation-delay: 6s;
}

.particle:nth-child(5) {
    left: 50%;
    top: 40%;
    animation-delay: 8s;
}

@keyframes float-particles {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translate(20px, -30px) scale(1.2);
        opacity: 0.5;
    }
    50% {
        transform: translate(-15px, 20px) scale(0.8);
        opacity: 0.4;
    }
    75% {
        transform: translate(30px, 10px) scale(1.1);
        opacity: 0.6;
    }
}

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

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-display {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border: 3px solid var(--color-primary-light);
    border-radius: 50%;
    animation: pulse-wave 3s ease-out infinite;
}

.pulse-ring-2 {
    animation-delay: 1.5s;
}

@keyframes pulse-wave {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

.product-img {
    position: relative;
    z-index: 2;
    width: 100%;
    border-radius: var(--border-radius-xl);
    filter: drop-shadow(0 25px 50px rgba(30, 64, 175, 0.3));
}

.brain-wave {
    animation: brain-pulse 4s ease-in-out infinite;
}

@keyframes brain-pulse {
    0%, 100% {
        transform: scale(1);
        filter: drop-shadow(0 25px 50px rgba(30, 64, 175, 0.3));
    }
    50% {
        transform: scale(1.05);
        filter: drop-shadow(0 30px 60px rgba(30, 64, 175, 0.4));
    }
}

.brain-icon,
.focus-icon,
.memory-icon {
    position: absolute;
    font-size: 2rem;
    animation: icon-float 3s ease-in-out infinite;
    z-index: 3;
}

.brain-icon {
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.focus-icon {
    top: 50%;
    left: 5%;
    animation-delay: 1s;
}

.memory-icon {
    bottom: 15%;
    right: 15%;
    animation-delay: 2s;
}

@keyframes icon-float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-15px) rotate(10deg);
        opacity: 1;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(1.75rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    color: var(--color-primary);
}

.hero-text {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 2.5rem;
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    transition: all var(--transition-normal);
    min-height: 56px;
    text-align: center;
    justify-content: center;
}

.cta-hero {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--spacing-lg);
}

.cta-hero:hover,
.cta-hero:focus {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.cta-button svg {
    transition: transform var(--transition-normal);
}

.cta-button:hover svg {
    transform: translateX(5px);
}

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

.badge-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-gray-700);
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow-sm);
}

.badge-item svg {
    color: var(--color-primary);
}

/* ===================================
   WHY CHOOSE SECTION
   =================================== */
.why-choose-section {
    padding: 80px 0;
    background: var(--color-white);
}

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

.feature-card {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    text-align: center;
    transition: all var(--transition-normal);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-lighter);
}

.feature-icon {
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
}

.feature-icon img {
    width: 100px;
    height: 100px;
    transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon img {
    transform: scale(1.1);
}

.feature-title {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.feature-text {
    font-size: 0.938rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* ===================================
   WHAT IS SECTION
   =================================== */
.what-is-section {
    padding: 80px 0;
    background: var(--color-gray-50);
}

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

.content-text .section-title {
    text-align: left;
}

.content-paragraph {
    font-size: clamp(1rem, 2vw, 1.063rem);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.image-wrapper {
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-slow);
    position: relative;
}

.image-wrapper:hover {
    transform: scale(1.02);
}

.image-wrapper img {
    width: 100%;
    border-radius: var(--border-radius-xl);
}

.image-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--shadow-lg);
}

/* ===================================
   HOW IT WORKS SECTION
   =================================== */
.how-it-works-section {
    padding: 80px 0;
    background: var(--color-white);
}

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

.accordion-item {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid var(--color-gray-200);
}

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

.accordion-header {
    width: 100%;
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    background: var(--color-white);
    transition: all var(--transition-normal);
    min-height: 48px;
    text-align: left;
}

.accordion-header:hover,
.accordion-header:focus {
    background: var(--color-gray-50);
    outline: none;
}

.accordion-number {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

.accordion-title {
    flex: 1;
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 600;
    color: var(--color-gray-900);
}

.accordion-icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: transform var(--transition-normal);
}

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

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.accordion-item.active .accordion-content {
    max-height: 600px;
}

.accordion-content p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    padding-left: calc(var(--spacing-md) + 48px + var(--spacing-sm));
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ===================================
   REVIEWS SECTION
   =================================== */
.reviews-section {
    padding: 80px 0;
    background: var(--color-gray-50);
}

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

.review-card {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
}

.testimonial-fade {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.review-card:nth-child(1) {
    animation-delay: 0.1s;
}

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

.review-card:nth-child(3) {
    animation-delay: 0.3s;
}

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

.review-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-primary-lighter);
}

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

.reviewer-img {
    width: 80px;
    height: 80px;
    min-width: 80px;
    border-radius: 50%;
    border: 4px solid var(--color-primary-lighter);
    object-fit: cover;
    animation: profile-glow 3s ease-in-out infinite;
}

@keyframes profile-glow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(30, 64, 175, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(30, 64, 175, 0);
    }
}

.reviewer-info {
    flex: 1;
}

.reviewer-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--color-primary);
}

.reviewer-location {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: 0.5rem;
}

.star-rating {
    color: var(--color-warning);
    font-size: 1.125rem;
    letter-spacing: 2px;
}

.review-text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
    font-style: italic;
}

/* ===================================
   PRICING SECTION
   =================================== */
.pricing-section {
    padding: 80px 0;
    background: var(--color-white);
}

.pricing-section-2 {
    background: var(--color-gray-50);
}

.countdown-container {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    background: var(--color-white);
    border: 2px solid var(--color-primary-lighter);
}

.countdown-text {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-gray-700);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.countdown-timer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: 'Courier New', monospace;
}

.countdown-segment {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.countdown-number {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-gray-50);
    border: 3px solid var(--color-primary);
    border-radius: var(--border-radius-md);
    min-width: 100px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.countdown-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

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

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

.pricing-card {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-primary-lighter);
}

.pricing-featured {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.05), rgba(59, 130, 246, 0.05));
    border: 3px solid var(--color-primary);
    transform: scale(1.05);
}

.pricing-featured:hover {
    transform: scale(1.08) translateY(-10px);
}

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

.pricing-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-package {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pricing-supply {
    font-size: 1rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
}

.pricing-image {
    margin: var(--spacing-md) 0;
}

.pricing-image img {
    max-width: 200px;
    margin: 0 auto;
    transition: transform var(--transition-normal);
}

.pricing-card:hover .pricing-image img {
    transform: scale(1.1);
}

.pricing-price {
    margin: var(--spacing-md) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.price-per {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-primary);
}

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

.pricing-total {
    margin: var(--spacing-sm) 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.price-old {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.price-new {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-primary);
}

.pricing-badges {
    margin: var(--spacing-sm) 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.badge-item {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.5rem var(--spacing-sm);
    border-radius: var(--border-radius-full);
    font-weight: 600;
    font-size: 0.875rem;
}

.pricing-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--gradient-primary);
    color: var(--color-white);
    font-weight: 700;
    font-size: clamp(1rem, 2vw, 1.125rem);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-normal);
    margin: var(--spacing-md) 0;
    min-height: 50px;
    box-shadow: var(--shadow-md);
}

.pricing-button:hover,
.pricing-button:focus {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.payment-logos {
    margin-top: var(--spacing-sm);
}

.payment-logos img {
    margin: 0 auto;
    opacity: 0.8;
}

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

.rating-section img {
    margin: 0 auto var(--spacing-sm);
}

.rating-text {
    color: var(--color-gray-600);
    font-size: 1rem;
    font-weight: 500;
}

/* ===================================
   INGREDIENTS SECTION
   =================================== */
.ingredients-section {
    padding: 80px 0;
    background: var(--color-gray-50);
}

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

.ingredient-card {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
}

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

.ingredient-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.ingredient-name {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.ingredient-text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ===================================
   SCIENTIFIC EVIDENCE SECTION
   =================================== */
.scientific-section {
    padding: 80px 0;
    background: var(--color-white);
}

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

.evidence-item {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    padding-left: calc(var(--spacing-xl) + 60px);
    transition: all var(--transition-normal);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
}

.evidence-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
    border-color: var(--color-primary-lighter);
}

.evidence-number {
    position: absolute;
    left: var(--spacing-lg);
    top: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.evidence-title {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.evidence-text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ===================================
   GUARANTEE SECTION
   =================================== */
.guarantee-section {
    padding: 80px 0;
    background: var(--color-gray-50);
}

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

.guarantee-image .image-wrapper {
    max-width: 400px;
    margin: 0 auto;
}

.guarantee-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.guarantee-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
}

.guarantee-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.guarantee-text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ===================================
   BENEFITS SECTION
   =================================== */
.benefits-section {
    padding: 80px 0;
    background: var(--color-white);
}

.benefits-list {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
}

.benefit-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-lighter);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-content {
    flex: 1;
}

.benefit-title {
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.benefit-text {
    font-size: 1rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* ===================================
   FAQ SECTION
   =================================== */
.faq-section {
    padding: 80px 0;
    background: var(--color-gray-50);
}

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

.faq-item {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-gray-200);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-normal);
    min-height: 48px;
    gap: var(--spacing-sm);
}

.faq-question:hover,
.faq-question:focus {
    background: var(--color-gray-50);
    outline: none;
}

.faq-question span:first-child {
    font-size: clamp(1rem, 2vw, 1.063rem);
    font-weight: 600;
    flex: 1;
    color: var(--color-gray-900);
}

.faq-icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: transform var(--transition-normal);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

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

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ===================================
   FINAL CTA SECTION
   =================================== */
.final-cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    position: relative;
    overflow: hidden;
}

.cta-waves {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 100px;
    background: linear-gradient(90deg, transparent, rgba(30, 64, 175, 0.1), transparent);
    animation: wave-move 15s linear infinite;
}

.wave-2 {
    animation-delay: 5s;
    opacity: 0.5;
}

.wave-3 {
    animation-delay: 10s;
    opacity: 0.3;
}

@keyframes wave-move {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.final-cta-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.final-cta-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.product-showcase-final {
    position: relative;
    max-width: 400px;
}

.final-product-img {
    width: 100%;
    position: relative;
    z-index: 2;
    animation: product-showcase 4s ease-in-out infinite;
}

@keyframes product-showcase {
    0%, 100% {
        transform: translateY(0) rotate(-5deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

.shine-effect {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shine 3s ease-in-out infinite;
}

@keyframes shine {
    0% {
        left: -100%;
    }
    50%, 100% {
        left: 100%;
    }
}

.final-cta-text {
    flex: 1;
    text-align: center;
}

.final-cta-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
    color: var(--color-primary);
}

.final-cta-pricing {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: var(--spacing-lg);
    align-items: center;
}

.final-price-old {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.final-price-new {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--color-primary);
}

.savings-badge {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius-full);
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: var(--shadow-lg);
}

.final-cta-description {
    font-size: clamp(1rem, 2vw, 1.063rem);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.cta-final {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-xl);
    font-size: clamp(1.063rem, 2vw, 1.25rem);
    padding: var(--spacing-md) var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.cta-final:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

.urgency-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--color-warning);
    font-weight: 600;
    font-size: 0.875rem;
}

.urgency-text svg {
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    padding: 60px 0 30px;
    background: var(--color-gray-900);
    color: var(--color-white);
}

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

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

.footer-link {
    color: var(--color-gray-300);
    font-weight: 500;
    transition: color var(--transition-normal);
}

.footer-link:hover,
.footer-link:focus {
    color: var(--color-white);
    text-decoration: underline;
}

.footer-disclaimer {
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--color-gray-400);
    line-height: 1.6;
}

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

.social-icon {
    width: 44px;
    height: 44px;
    background: var(--color-gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    transition: all var(--transition-normal);
}

.social-icon:hover,
.social-icon:focus {
    background: var(--color-primary);
    transform: translateY(-5px);
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-gray-800);
}

/* ===================================
   SCROLL TO TOP BUTTON
   =================================== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-xl);
}

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

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

/* ===================================
   PURCHASE NOTIFICATION
   =================================== */
.purchase-notification {
    position: fixed;
    bottom: 30px;
    left: 30px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-2xl);
    z-index: 998;
    opacity: 0;
    transform: translateX(-100%);
    transition: all var(--transition-slow);
    max-width: 320px;
    background: var(--color-white);
    border: 2px solid var(--color-primary-lighter);
}

.purchase-notification.show {
    opacity: 1;
    transform: translateX(0);
}

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

.notification-icon {
    font-size: 2rem;
}

.notification-text {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    line-height: 1.4;
}

.notification-text strong {
    font-weight: 700;
    color: var(--color-primary);
}

.notification-close {
    position: absolute;
    top: 5px;
    right: 10px;
    font-size: 1.5rem;
    color: var(--color-gray-400);
    cursor: pointer;
    background: none;
    border: none;
}

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

@media (max-width: 768px) {
    :root {
        --spacing-xs: 0.375rem;
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 2.5rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(280px, 80vw);
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: var(--spacing-lg);
        transition: right 0.4s ease;
        padding: var(--spacing-lg);
        box-shadow: -5px 0 20px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-cta {
        width: 100%;
    }
    
    .hero-section {
        padding: 120px 0 60px;
        min-height: auto;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .product-display {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .content-text .section-title {
        text-align: center;
    }
    
    .content-image {
        order: -1;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .pricing-featured {
        transform: scale(1);
        order: -1;
    }
    
    .ingredients-grid {
        grid-template-columns: 1fr;
    }
    
    .guarantee-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .guarantee-image {
        order: -1;
    }
    
    .final-cta-content {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .purchase-notification {
        left: 15px;
        right: 15px;
        max-width: none;
    }
    
    .scroll-to-top {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    
    .accordion-content p {
        padding-left: var(--spacing-md);
    }
    
    .evidence-item {
        padding-left: var(--spacing-lg);
    }
    
    .evidence-number {
        left: var(--spacing-sm);
        top: var(--spacing-sm);
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .countdown-timer {
        gap: var(--spacing-xs);
    }
    
    .countdown-number {
        min-width: 80px;
        font-size: 2rem;
    }
    
    .trust-badges {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

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

@media print {
    .header,
    .scroll-to-top,
    .purchase-notification,
    .countdown-container {
        display: none !important;
    }
}