/* ====================================
   GENIUS BRAIN SIGNAL - STYLES.CSS
   Mobile-First Responsive Design
   ==================================== */

/* ====================================
   CSS VARIABLES
   ==================================== */
:root {
    /* Color Palette - Sophisticated & Trustworthy */
    --primary-color: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #6366F1;
    --secondary-color: #10B981;
    --accent-color: #F59E0B;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    
    /* Neutral Colors */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-gray: #F3F4F6;
    --border-color: #E5E7EB;
    
    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
}

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

a:hover {
    color: var(--primary-dark);
}

/* ====================================
   CONTAINER & LAYOUT
   ==================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* ====================================
   BUTTONS
   ==================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    min-height: 48px; /* Mobile touch target */
}

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

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

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: 40px;
}

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

/* Pulse Animation for CTA Buttons */
.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(79, 70, 229, 0);
    }
}

/* Mobile touch feedback */
@media (max-width: 768px) {
    .btn:active {
        transform: scale(0.98);
    }
}

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

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

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

.logo-text {
    display: none;
}

@media (min-width: 480px) {
    .logo-text {
        display: inline;
    }
}

/* Desktop Navigation */
.nav-links {
    display: none;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.5rem 0;
    position: relative;
}

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

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

.nav-cta {
    display: none;
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }
    
    .nav-cta {
        display: inline-flex;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: var(--z-modal);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

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

@media (min-width: 1024px) {
    .mobile-menu-toggle {
        display: none;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-white);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: var(--z-fixed);
    padding-top: 80px;
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav-links {
    list-style: none;
    padding: var(--spacing-lg);
}

.mobile-nav-links li {
    margin-bottom: var(--spacing-md);
}

.mobile-nav-links a {
    display: block;
    padding: var(--spacing-md);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.mobile-nav-links a:hover {
    background: var(--bg-gray);
    color: var(--primary-color);
}

.mobile-cta {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* ====================================
   HERO SECTION
   ==================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    z-index: -1;
}

/* Animated Gradient Orbs */
.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    bottom: -250px;
    right: -250px;
    animation-delay: -7s;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

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

@media (min-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-text {
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: rgba(79, 70, 229, 0.1);
    border: 1px solid rgba(79, 70, 229, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.badge-icon {
    font-size: 1.125rem;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.75rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

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

.hero-description {
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

@media (min-width: 640px) {
    .hero-features {
        flex-direction: row;
        flex-wrap: wrap;
    }
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
}

.feature-icon {
    width: 20px;
    height: 20px;
    color: var(--secondary-color);
    flex-shrink: 0;
}

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

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Countdown Timer */
.countdown-wrapper {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border: 2px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
}

.countdown-label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

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

.time-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.time-value {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.75rem;
    font-weight: 700;
    border-radius: var(--radius-md);
}

@media (min-width: 640px) {
    .time-value {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }
}

.time-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
}

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

/* Hero Image */
.hero-image {
    position: relative;
    z-index: 1;
}

.image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: var(--gradient-accent);
    filter: blur(60px);
    opacity: 0.3;
    border-radius: 50%;
    z-index: -1;
}

.product-image {
    width: 100%;
    height: auto;
    max-width: 500px;
    margin: 0 auto;
    display: block;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
    animation: floatImage 6s ease-in-out infinite;
}

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

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: floatCard 4s ease-in-out infinite;
    z-index: 2;
}

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

.card-2 {
    top: 50%;
    right: -5%;
    animation-delay: -1.5s;
}

.card-3 {
    bottom: 15%;
    left: 5%;
    animation-delay: -3s;
}

@media (max-width: 1024px) {
    .floating-card {
        display: none;
    }
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

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

.card-content {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.card-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-stat {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Fade-in Animation */
.animate-fade-in {
    animation: fadeInUp 1s ease-out;
}

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

.animate-float {
    animation: fadeInScale 1s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ====================================
   SECTIONS
   ==================================== */
section {
    padding: var(--spacing-3xl) 0;
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-xl) 0;
    }
}

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

.section-title {
    font-size: clamp(1.875rem, 4vw, 2.75rem);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    color: var(--text-secondary);
}

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

/* ====================================
   PRICING SECTION
   ==================================== */
.pricing-section {
    background: var(--bg-light);
}

.pricing-card-wrapper {
    display: flex;
    justify-content: center;
}

.pricing-card {
    max-width: 800px;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.pricing-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--gradient-secondary);
    color: white;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.05em;
}

.pricing-image {
    width: 100%;
    height: auto;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
}

/* ====================================
   ABOUT SECTION
   ==================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr 1.5fr;
    }
}

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

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

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

.about-cta {
    margin-top: var(--spacing-lg);
}

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

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

.intro-text {
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

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

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

.process-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

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

.process-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.process-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.process-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
}

.science-section {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-xl);
}

.science-section h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.benefits-list li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--text-secondary);
}

.benefits-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.125rem;
}

/* ====================================
   REVIEWS SECTION
   ==================================== */
.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

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

@media (min-width: 1024px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

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

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

.reviewer-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.reviewer-info {
    flex: 1;
}

.reviewer-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

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

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

.review-content p {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.reviews-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ====================================
   INSIDE SECTION
   ==================================== */
.inside-section {
    background: var(--bg-light);
}

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

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

@media (min-width: 1024px) {
    .inside-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.inside-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.inside-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

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

.inside-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.inside-item p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.7;
}

/* ====================================
   HOW TO USE SECTION
   ==================================== */
.steps-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.steps-container {
    margin: var(--spacing-xl) 0;
}

.step-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    align-items: flex-start;
}

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

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.step-content p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
}

.pro-tips {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(16, 185, 129, 0.05));
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-top: var(--spacing-xl);
}

.pro-tips h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.pro-tips ul {
    list-style: none;
    padding: 0;
}

.pro-tips li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--text-secondary);
}

.pro-tips li::before {
    content: '💡';
    position: absolute;
    left: 0;
    font-size: 1.125rem;
}

/* ====================================
   GUARANTEE SECTION
   ==================================== */
.guarantee-section {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(16, 185, 129, 0.05));
}

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

@media (min-width: 1024px) {
    .guarantee-wrapper {
        grid-template-columns: 1.5fr 1fr;
    }
}

.guarantee-content {
    max-width: 600px;
}

.guarantee-content p {
    font-size: 1.0625rem;
    line-height: 1.8;
}

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

.guarantee-badge {
    max-width: 300px;
    width: 100%;
    height: auto;
}

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

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

@media (min-width: 640px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

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

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

.benefit-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.benefit-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ====================================
   BONUSES SECTION
   ==================================== */
.bonuses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 1024px) {
    .bonuses-grid {
        grid-template-columns: 1fr;
    }
}

.bonus-card {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

@media (min-width: 768px) {
    .bonus-card {
        flex-direction: row;
    }
}

.bonus-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

.bonus-image {
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .bonus-image {
        width: 250px;
    }
}

.bonus-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bonus-content {
    padding: var(--spacing-lg);
    flex: 1;
}

.bonus-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--gradient-accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
}

.bonus-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.bonus-content p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ====================================
   WHERE TO BUY SECTION
   ==================================== */
.where-to-buy-section {
    background: var(--bg-light);
}

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

.where-to-buy-content > p {
    font-size: 1.0625rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.benefits-checklist h3 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.checklist-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.check-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    color: var(--secondary-color);
}

.checklist-item strong {
    display: block;
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.checklist-item p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.6;
}

.warning-box {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border-left: 4px solid var(--accent-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-xl);
}

.warning-box strong {
    color: var(--accent-color);
}

/* ====================================
   FAQs SECTION
   ==================================== */
.faqs-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

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

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    text-align: left;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 64px; /* Mobile touch target */
}

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

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

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

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

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

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ====================================
   FINAL CTA SECTION
   ==================================== */
.final-cta-section {
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    z-index: 0;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 800"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="800" height="800" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    color: white;
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-md);
}

.cta-description {
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
}

.cta-image-wrapper {
    margin: var(--spacing-xl) 0;
}

.cta-image {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
}

.cta-button {
    background: white;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.cta-button:hover {
    background: var(--bg-light);
    color: var(--primary-dark);
}

.cta-guarantees {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* ====================================
   FOOTER
   ==================================== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

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

.footer-title {
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.footer-contact {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
}

.footer-contact a {
    color: var(--primary-light);
}

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

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

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

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

.footer-disclaimer {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8125rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ====================================
   SCROLL TO TOP BUTTON
   ==================================== */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

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

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

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

/* ====================================
   PURCHASE NOTIFICATION
   ==================================== */
.purchase-notification {
    position: fixed;
    bottom: 20px;
    left: 20px;
    max-width: 320px;
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    transform: translateX(-400px);
    transition: transform var(--transition-slow);
    z-index: var(--z-popover);
}

@media (max-width: 640px) {
    .purchase-notification {
        bottom: 80px;
        left: 10px;
        right: 10px;
        max-width: none;
    }
}

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

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

.notification-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-success);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
}

.notification-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.notification-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
}

.notification-message {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

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

/* ====================================
   EXIT POPUP
   ==================================== */
.exit-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-modal);
}

.exit-popup.active {
    opacity: 1;
    visibility: visible;
}

.exit-popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(5px);
}

.exit-popup-content {
    position: relative;
    max-width: 500px;
    width: calc(100% - 2rem);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.exit-popup.active .exit-popup-content {
    transform: scale(1);
}

.exit-popup-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gray);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 1;
}

.exit-popup-close:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.exit-popup-body {
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
}

.exit-popup-body h3 {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.exit-popup-body p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.exit-popup-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.exit-benefit {
    padding: var(--spacing-sm);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
}

.exit-popup-footer {
    font-size: 0.8125rem;
    color: var(--text-light);
    margin-top: var(--spacing-md);
    margin-bottom: 0;
}

/* ====================================
   SCROLL POPUP
   ==================================== */
.scroll-popup {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(150%);
    max-width: 500px;
    width: calc(100% - 2rem);
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    transition: transform var(--transition-slow);
    z-index: var(--z-popover);
}

@media (max-width: 640px) {
    .scroll-popup {
        bottom: 10px;
    }
}

.scroll-popup.show {
    transform: translateX(-50%) translateY(0);
}

.scroll-popup-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.scroll-popup-close {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gray);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.scroll-popup-close:hover {
    background: var(--border-color);
}

.scroll-popup-text {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--text-primary);
}

.scroll-popup-text strong {
    color: var(--primary-color);
}

/* ====================================
   SCROLL REVEAL ANIMATIONS
   ==================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ====================================
   RESPONSIVE UTILITIES
   ==================================== */
@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 769px) {
    .hide-desktop {
        display: none !important;
    }
}

/* ====================================
   PRINT STYLES
   ==================================== */
@media print {
    .navbar,
    .mobile-menu,
    .scroll-to-top,
    .purchase-notification,
    .exit-popup,
    .scroll-popup,
    .countdown-wrapper {
        display: none !important;
    }
    
    body {
        background: white;
    }
    
    a {
        text-decoration: underline;
    }
}