/* ===================================
   XITOX FOOT PADS - MODERN GRADIENT DESIGN
   Mobile-First Responsive CSS
   =================================== */

/* ===================================
   ROOT VARIABLES & RESET
   =================================== */
:root {
    /* Modern Gradient Color Palette */
    --primary-color: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #6366F1;
    --secondary-color: #06B6D4;
    --secondary-dark: #0891B2;
    --secondary-light: #22D3EE;

    /* Neutral Colors */
    --white: #FFFFFF;
    --black: #000000;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Accent Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    --gradient-secondary: linear-gradient(135deg, #06B6D4 0%, #10B981 100%);
    --gradient-warm: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(79, 70, 229, 0.95) 0%, rgba(6, 182, 212, 0.95) 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Georgia', serif;

    /* 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);
    --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.4);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;

    /* Z-index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 500;
    --z-notification: 600;
    --z-tooltip: 700;
}

/* 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: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: all var(--transition-base);
}

ul, ol {
    list-style: none;
}

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

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

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

.section-heading {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.3;
}

@media (min-width: 768px) {
    .section-heading {
        font-size: 36px;
        margin-bottom: var(--spacing-xl);
    }
}

@media (min-width: 1024px) {
    .section-heading {
        font-size: 42px;
    }
}

.section-subheading {
    font-size: 16px;
    color: var(--gray-600);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .section-subheading {
        font-size: 18px;
    }
}

/* ===================================
   SECTION 1: NAVIGATION MENU
   =================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-sticky);
    background: var(--white);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.main-header.scrolled {
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (min-width: 768px) {
    .brand-logo {
        font-size: 24px;
    }
}

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

@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 80px 30px 30px;
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-base);
        gap: var(--spacing-lg);
    }

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

.nav-link {
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-700);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--gray-50);
}

.nav-cta-btn {
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: var(--z-modal);
    padding: 10px;
}

@media (max-width: 767px) {
    .hamburger {
        display: flex;
    }
}

.hamburger .bar {
    width: 28px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ===================================
   SECTION 2: HERO SECTION
   =================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #F0F9FF 0%, #F3E8FF 100%);
    overflow: hidden;
}

.hero-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

@media (min-width: 1024px) {
    .hero-content {
        flex-direction: row;
        justify-content: space-between;
        gap: var(--spacing-3xl);
    }
}

.hero-image-wrapper {
    flex: 0 0 auto;
    width: 100%;
    max-width: 400px;
}

@media (min-width: 1024px) {
    .hero-image-wrapper {
        flex: 0 0 45%;
    }
}

.hero-image-animate {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(2deg);
    }
    50% {
        transform: translateY(-10px) rotate(-2deg);
    }
    75% {
        transform: translateY(-15px) rotate(1deg);
    }
}

.hero-product-image {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(79, 70, 229, 0.3));
    animation: pulse 3s ease-in-out infinite;
}

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

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.2) 0%, transparent 70%);
    animation: glow 4s ease-in-out infinite;
    z-index: -1;
}

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

.hero-text-content {
    flex: 1;
    text-align: center;
}

@media (min-width: 1024px) {
    .hero-text-content {
        text-align: left;
    }
}

.hero-headline {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideInUp 0.8s ease-out;
}

@media (min-width: 768px) {
    .hero-headline {
        font-size: 42px;
    }
}

@media (min-width: 1024px) {
    .hero-headline {
        font-size: 48px;
    }
}

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

.hero-description {
    margin-bottom: var(--spacing-lg);
    animation: slideInUp 0.8s ease-out 0.2s both;
}

.hero-description p {
    color: var(--gray-700);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .hero-description p {
        font-size: 18px;
    }
}

.hero-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1.25rem 2.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
    animation: slideInUp 0.8s ease-out 0.4s both;
    min-height: 60px;
}

@media (max-width: 767px) {
    .hero-cta-btn {
        width: 100%;
        justify-content: center;
        font-size: 16px;
        padding: 1rem 2rem;
    }
}

.hero-cta-btn:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-2xl), var(--shadow-glow);
}

.hero-cta-btn:active {
    transform: translateY(-2px) scale(0.98);
}

.cta-icon {
    font-size: 24px;
    transition: transform var(--transition-base);
}

.hero-cta-btn:hover .cta-icon {
    transform: translateX(5px);
}

/* Hero Particles */
.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particle 10s infinite;
}

.particle:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 8s;
}

.particle:nth-child(2) {
    top: 40%;
    left: 80%;
    animation-delay: 2s;
    animation-duration: 12s;
}

.particle:nth-child(3) {
    top: 60%;
    left: 20%;
    animation-delay: 4s;
    animation-duration: 10s;
}

.particle:nth-child(4) {
    top: 80%;
    left: 70%;
    animation-delay: 1s;
    animation-duration: 15s;
}

.particle:nth-child(5) {
    top: 30%;
    left: 50%;
    animation-delay: 3s;
    animation-duration: 9s;
}

@keyframes float-particle {
    0%, 100% {
        transform: translateY(0) translateX(0) scale(1);
    }
    25% {
        transform: translateY(-50px) translateX(30px) scale(1.2);
    }
    50% {
        transform: translateY(-100px) translateX(-20px) scale(0.8);
    }
    75% {
        transform: translateY(-50px) translateX(40px) scale(1.1);
    }
}

/* ===================================
   SECTION 3: WHY CHOOSE US
   =================================== */
.why-choose-section {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

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

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

@media (min-width: 1024px) {
    .badges-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.badge-card.animate-in {
    animation: slideInUpFade 0.6s ease-out forwards;
}

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

.badge-card:hover {
    transform: translateY(-10px) rotate(2deg) scale(1.05);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.badge-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.badge-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.badge-description {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===================================
   SECTION 4: WHAT IS PRODUCT
   =================================== */
.what-is-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #FFFFFF 100%);
}

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

@media (min-width: 1024px) {
    .what-is-content {
        flex-direction: row;
        gap: var(--spacing-3xl);
    }
}

.what-is-text {
    flex: 1;
}

.what-is-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .what-is-text p {
        font-size: 18px;
    }
}

.what-is-image {
    flex: 0 0 auto;
    width: 100%;
    max-width: 500px;
}

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

/* ===================================
   SECTION 5: HOW IT WORKS
   =================================== */
.how-it-works-section {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

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

.accordion-item {
    background: var(--white);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.accordion-item:hover {
    box-shadow: var(--shadow-lg);
}

.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    transition: all var(--transition-base);
    min-height: 60px;
}

@media (max-width: 767px) {
    .accordion-header {
        font-size: 16px;
        padding: 1rem 1.25rem;
        min-height: 52px;
    }
}

.accordion-header:hover {
    opacity: 0.9;
}

.accordion-icon {
    font-size: 28px;
    font-weight: 300;
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--spacing-sm);
}

.accordion-item.active .accordion-icon {
    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: var(--spacing-lg);
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-700);
}

/* ===================================
   SECTION 6: CUSTOMER REVIEWS
   =================================== */
.reviews-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #FEFCE8 0%, #FEF3C7 100%);
}

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 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: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(30px) scale(0.9);
}

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

@keyframes reviewPop {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.9);
    }
    60% {
        transform: translateY(-10px) scale(1.05);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

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

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

.reviewer-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.reviewer-location {
    font-size: 14px;
    color: var(--gray-500);
}

.review-rating {
    margin-bottom: var(--spacing-sm);
}

.star {
    color: #F59E0B;
    font-size: 20px;
    margin-right: 2px;
}

.review-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--gray-700);
    font-style: italic;
}

/* ===================================
   SECTION 7 & 13: PRICING SECTIONS
   =================================== */
.pricing-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

.pricing-section-2 {
    background: linear-gradient(135deg, #FEF3C7 0%, #FEE2E2 100%);
}

/* Countdown Timer */
.countdown-timer {
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.timer-label {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .timer-label {
        font-size: 18px;
    }
}

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

.timer-box {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    min-width: 80px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    .timer-box {
        min-width: 100px;
        padding: var(--spacing-lg);
    }
}

.timer-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
}

@media (min-width: 768px) {
    .timer-number {
        font-size: 42px;
    }
}

.timer-label-small {
    display: block;
    font-size: 12px;
    margin-top: 0.5rem;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .timer-label-small {
        font-size: 14px;
    }
}

.timer-colon {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
}

@media (min-width: 768px) {
    .timer-colon {
        font-size: 42px;
    }
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

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

@media (min-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
}

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

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

.pricing-card-popular {
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    color: var(--white);
    transform: scale(1.05);
}

@media (max-width: 1023px) {
    .pricing-card-popular {
        transform: scale(1);
    }
}

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

@media (max-width: 1023px) {
    .pricing-card-popular:hover {
        transform: translateY(-10px) scale(1.02);
    }
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-warm);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    animation: bounce 2s infinite;
}

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

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

.pricing-card-popular .pricing-label {
    color: var(--white);
    opacity: 0.9;
}

.pricing-supply {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

@media (min-width: 768px) {
    .pricing-supply {
        font-size: 28px;
    }
}

.pricing-duration {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: var(--spacing-md);
}

.pricing-card-popular .pricing-duration {
    color: var(--white);
    opacity: 0.9;
}

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

.pricing-image img {
    width: 100%;
    max-width: 200px;
    height: auto;
    margin: 0 auto;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

.pricing-price {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.pricing-card-popular .pricing-price {
    color: var(--white);
}

@media (min-width: 768px) {
    .pricing-price {
        font-size: 48px;
    }
}

.price-unit {
    font-size: 18px;
    font-weight: 600;
}

.pricing-total {
    margin-bottom: var(--spacing-md);
}

.price-old {
    font-size: 24px;
    color: var(--gray-400);
    text-decoration: line-through;
    margin-right: var(--spacing-sm);
}

.pricing-card-popular .price-old {
    color: var(--white);
    opacity: 0.7;
}

.price-new {
    font-size: 32px;
    font-weight: 700;
    color: var(--success);
}

.pricing-card-popular .price-new {
    color: var(--white);
}

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

.bonus-badge,
.shipping-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--warning);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.shipping-badge {
    background: var(--success);
}

.pricing-cta-btn {
    display: block;
    width: 100%;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pricing-card-popular .pricing-cta-btn {
    background: var(--white);
    color: var(--primary-color);
}

.pricing-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.pricing-cta-btn:active {
    transform: translateY(-1px);
}

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

.payment-logos img {
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
    opacity: 0.7;
}

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

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

/* ===================================
   SECTION 9: INGREDIENTS
   =================================== */
.ingredients-section {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

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

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

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

.ingredient-card {
    background: linear-gradient(135deg, #FFFFFF 0%, #F9FAFB 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border-left: 4px solid var(--primary-color);
}

.ingredient-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-left-width: 6px;
}

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

.ingredient-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--gray-700);
}

/* ===================================
   SECTION 10: SCIENTIFIC EVIDENCE
   =================================== */
.scientific-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #FFFFFF 100%);
}

.scientific-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.scientific-intro p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-700);
}

@media (min-width: 768px) {
    .scientific-intro p {
        font-size: 18px;
    }
}

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

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

.evidence-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: var(--white);
    color: var(--gray-800);
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    transition: all var(--transition-base);
    border-left: 4px solid var(--primary-color);
    min-height: 60px;
}

@media (max-width: 767px) {
    .evidence-header {
        font-size: 16px;
        padding: 1rem 1.25rem;
        min-height: 52px;
    }
}

.evidence-header:hover {
    background: var(--gray-50);
}

.evidence-icon {
    font-size: 28px;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--spacing-sm);
}

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

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

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

.evidence-content p {
    padding: var(--spacing-lg);
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-700);
}

/* ===================================
   SECTION 11: MONEY BACK GUARANTEE
   =================================== */
.guarantee-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #FEFCE8 0%, #FEF3C7 100%);
}

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

@media (min-width: 1024px) {
    .guarantee-content {
        flex-direction: row;
        gap: var(--spacing-3xl);
    }
}

.guarantee-image {
    flex: 0 0 auto;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.guarantee-image img {
    width: 100%;
    max-width: 300px;
    height: auto;
    margin: 0 auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
}

.guarantee-text {
    flex: 1;
}

@media (max-width: 1023px) {
    .guarantee-text {
        text-align: center;
    }
}

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

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

.guarantee-item-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
    .guarantee-item-title {
        font-size: 24px;
    }
}

.guarantee-item p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-700);
}

/* ===================================
   SECTION 12: BENEFITS
   =================================== */
.benefits-section {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.benefits-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

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

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #F0F9FF 0%, #FFFFFF 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    border-radius: 50%;
}

.benefit-text h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.benefit-text p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===================================
   SECTION 14: FAQ
   =================================== */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

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

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

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: var(--white);
    color: var(--gray-800);
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    text-align: left;
    transition: all var(--transition-base);
    min-height: 60px;
}

@media (max-width: 767px) {
    .faq-question {
        font-size: 16px;
        padding: 1rem 1.25rem;
        min-height: 52px;
    }
}

.faq-question:hover {
    background: var(--gray-50);
}

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

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

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

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

.faq-answer p {
    padding: var(--spacing-lg);
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-700);
    background: var(--gray-50);
}

/* ===================================
   SECTION 15: FINAL CTA
   =================================== */
.final-cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
    position: relative;
    overflow: hidden;
}

.final-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

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

@media (min-width: 1024px) {
    .final-cta-content {
        flex-direction: row;
        justify-content: space-between;
        gap: var(--spacing-3xl);
    }
}

.final-cta-image {
    flex: 0 0 auto;
    width: 100%;
    max-width: 400px;
    animation: float 6s ease-in-out infinite;
}

.final-cta-image img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

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

@media (min-width: 1024px) {
    .final-cta-text {
        text-align: left;
    }
}

.final-cta-heading {
    font-size: 28px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

@media (min-width: 768px) {
    .final-cta-heading {
        font-size: 36px;
    }
}

@media (min-width: 1024px) {
    .final-cta-heading {
        font-size: 42px;
    }
}

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

.final-price-old {
    display: block;
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: line-through;
    margin-bottom: 0.5rem;
}

.final-price-new {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--warning);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

@media (min-width: 768px) {
    .final-price-new {
        font-size: 52px;
    }
}

.final-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1.25rem 2.5rem;
    background: var(--white);
    color: var(--primary-color);
    font-size: 20px;
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-2xl);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-lg);
    min-height: 60px;
}

@media (max-width: 767px) {
    .final-cta-btn {
        width: 100%;
        justify-content: center;
        font-size: 18px;
    }
}

.final-cta-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.cta-arrow {
    font-size: 24px;
    transition: transform var(--transition-base);
}

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

.final-cta-guarantee {
    font-size: 16px;
    color: var(--white);
    margin-bottom: 0.5rem;
}

/* ===================================
   SECTION 16: FOOTER
   =================================== */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: var(--gray-900);
    color: var(--gray-300);
}

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

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

.footer-link {
    color: var(--gray-300);
    font-size: 14px;
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--primary-light);
}

.footer-separator {
    color: var(--gray-600);
}

.footer-disclaimer {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

.footer-disclaimer p {
    font-size: 13px;
    line-height: 1.6;
    color: var(--gray-400);
}

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

.social-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-800);
    color: var(--gray-300);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.social-icon:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-copyright {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-800);
}

.footer-copyright p {
    font-size: 14px;
    color: var(--gray-500);
}

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

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

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

/* ===================================
   PURCHASE NOTIFICATION POPUP
   =================================== */
.purchase-notification {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 320px;
    opacity: 0;
    transform: translateY(100px);
    transition: all var(--transition-base);
    z-index: var(--z-notification);
}

@media (max-width: 767px) {
    .purchase-notification {
        left: 20px;
        right: 20px;
        max-width: calc(100% - 40px);
        bottom: 20px;
    }
}

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

.notification-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.notification-text {
    flex: 1;
    font-size: 14px;
}

.notification-name {
    display: block;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.notification-message {
    display: block;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.notification-time {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
}

.notification-close {
    font-size: 24px;
    color: var(--gray-400);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: color var(--transition-base);
    flex-shrink: 0;
}

.notification-close:hover {
    color: var(--gray-700);
}

/* ===================================
   CTA POPUP
   =================================== */
.cta-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.popup-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.popup-content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-2xl);
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.cta-popup.show .popup-content {
    transform: scale(1);
    animation: popupBounce 0.6s ease-out;
}

@keyframes popupBounce {
    0% {
        transform: scale(0.5);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.popup-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    background: var(--gray-200);
    color: var(--gray-700);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.popup-body {
    text-align: center;
    padding: var(--spacing-md);
}

.popup-heading {
    font-size: 26px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--spacing-md);
}

.popup-text {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

.popup-price {
    margin-bottom: var(--spacing-lg);
}

.popup-old-price {
    font-size: 24px;
    color: var(--gray-400);
    text-decoration: line-through;
    margin-right: var(--spacing-sm);
}

.popup-new-price {
    font-size: 42px;
    font-weight: 800;
    color: var(--success);
}

.popup-cta-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-md);
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.popup-guarantee {
    font-size: 14px;
    color: var(--gray-600);
}

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

/* ===================================
   LOADING STATES
   =================================== */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
    .main-header,
    .scroll-to-top,
    .purchase-notification,
    .cta-popup,
    .hero-particles {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    a {
        text-decoration: underline;
    }
}