/* CSS Variables */
:root {
    /* Colors */
    --color-bg-dark: #0a0e27;
    --color-bg-gradient-start: #0a0e27;
    --color-bg-gradient-end: #1a1f3a;
    --color-primary: #00d4ff;
    --color-secondary: #6366f1;
    --color-accent: #a855f7;
    --color-success: #10b981;
    --color-text-primary: #ffffff;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Glass effect */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Border radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index layers */
    --z-base: 1;
    --z-elevated: 10;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 1000;
}

/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background: 
        linear-gradient(135deg, rgba(10, 14, 39, 0.95) 0%, rgba(26, 31, 58, 0.95) 100%),
        url('assets/hero/bg-image.jpg') center/cover no-repeat fixed;
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Animated background particles */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: backgroundPulse 20s ease-in-out infinite;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Glass Card Effect */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 
        0 8px 32px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transition: left 0.5s;
}

.glass-card:hover::before {
    left: 100%;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: var(--spacing-sm) 0;
    background: rgba(10, 14, 39, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: var(--font-size-lg);
    transition: all var(--transition-fast);
}

.nav-logo img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.nav-logo:hover {
    color: var(--color-primary);
    transform: translateX(3px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: transform var(--transition-base);
}

.nav-link:hover {
    color: var(--color-primary);
    background: rgba(0, 212, 255, 0.1);
}

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: rgba(10, 14, 39, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        align-items: flex-start;
        transition: right var(--transition-base);
        border-left: 1px solid var(--glass-border);
        box-shadow: -4px 0 16px rgba(0, 0, 0, 0.3);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-sm);
    }
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: calc(70px + var(--spacing-2xl)) var(--spacing-lg) var(--spacing-lg);
    overflow: hidden;
}

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

.hero-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0, 212, 255, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 70% 60%, rgba(168, 85, 247, 0.15) 0%, transparent 60%);
    z-index: 0;
    animation: heroFallbackAnimation 15s ease-in-out infinite;
}

@keyframes heroFallbackAnimation {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.6; }
    50% { transform: scale(1.1) rotate(5deg); opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: var(--z-elevated);
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    text-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
}

.hero-subtitle {
    font-size: clamp(var(--font-size-lg), 2vw, var(--font-size-xl));
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-text-primary);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 
        0 8px 24px rgba(0, 212, 255, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 12px 32px rgba(0, 212, 255, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.cta-button:hover::before {
    left: 100%;
}

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

/* Logo Carousel (inside hero) */
.logo-carousel-section {
    position: relative;
    z-index: var(--z-elevated);
    width: 100%;
    margin-top: var(--spacing-2xl);
}

.logo-carousel-container {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg) 0;
    overflow: hidden;
}

.logo-carousel {
    display: flex;
    gap: var(--spacing-xl);
    animation: carouselScroll 30s linear infinite;
    width: fit-content;
}

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

.logo-item {
    flex-shrink: 0;
    width: 150px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: none;
    opacity: 0.6;
    transition: all var(--transition-base);
}

.logo-item:hover {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
    transform: scale(1.1);
}

.logo-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Section Styles */
section {
    padding: var(--spacing-2xl) 0;
    position: relative;
    z-index: var(--z-base);
}

.section-title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Why Choose Us Section */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.why-card {
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
    animation: floatAnimation 6s ease-in-out infinite;
}

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

.why-card:nth-child(3) {
    animation-delay: 4s;
}

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

.why-card:hover {
    transform: translateY(-15px) !important;
    box-shadow: 
        0 20px 60px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: var(--color-primary);
}

.why-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.5));
}

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

.why-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.why-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.why-sub {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* How It Works Section */
.how-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.how-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    opacity: 0;
    transform: translateX(-50px);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 16px var(--glass-shadow);
}

.step-icon svg {
    width: 30px;
    height: 30px;
    color: var(--color-primary);
}

.step-number {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: 2px solid var(--color-primary);
}

.step-number span {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.step-content h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.step-content p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

/* How It Works Mockup */
.how-mockup {
    position: relative;
}

.mockup-3d {
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.qr-display {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: 
        0 20px 60px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    animation: mockupFloat 8s ease-in-out infinite;
    transform-style: preserve-3d;
}

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

.qr-image {
    width: 250px;
    height: 250px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.qr-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.status-text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* Products Section */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.product-card {
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    cursor: pointer;
}

.product-card::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary), var(--color-accent), var(--color-primary));
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-base);
    background-size: 300% 300%;
    animation: borderGradient 3s ease infinite;
}

@keyframes borderGradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.product-card:hover::after {
    opacity: 1;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 
        0 24px 48px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.product-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.product-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.product-price {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.product-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    min-height: 4.5em;
}

.product-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
}

.product-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.5);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.contact-card {
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-10px);
}

.contact-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.contact-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.contact-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
    color: var(--color-text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.contact-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.5);
}

/* Footer */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--glass-border);
    position: relative;
    z-index: var(--z-base);
}

.footer-carousel {
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
}

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

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

.social-icon {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    transition: all var(--transition-base);
}

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

.social-icon:hover {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 212, 255, 0.4);
}

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

.footer-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer-text {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    cursor: pointer;
}

.modal-content {
    position: relative;
    z-index: 1;
    max-width: 500px;
    width: 100%;
    padding: var(--spacing-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text-primary);
}

.modal-close:hover {
    background: rgba(255, 0, 0, 0.2);
    transform: rotate(90deg);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.modal-product-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.modal-price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
}

.modal-qr {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.modal-qr-image {
    width: 250px;
    height: 250px;
    border-radius: var(--radius-md);
    background: white;
    padding: var(--spacing-md);
}

.modal-instructions {
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.modal-address {
    background: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
}

.modal-address label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.modal-address code {
    display: block;
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    word-break: break-all;
}

/* Product Page Styles */
.product-page {
    background: linear-gradient(135deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 100%);
    background-attachment: fixed;
}

.product-hero {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.product-hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
}

.back-link:hover {
    color: var(--color-primary);
    transform: translateX(-5px);
}

.back-link svg {
    width: 20px;
    height: 20px;
}

.product-hero-logo {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    box-shadow: 0 20px 60px var(--glass-shadow);
}

.product-hero-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.product-hero-price {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.product-hero-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

/* Product Showcase */
.product-showcase {
    padding: var(--spacing-2xl) 0;
}

.showcase-3d {
    perspective: 1000px;
    display: flex;
    justify-content: center;
}

.showcase-card {
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: showcaseRotate 20s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes showcaseRotate {
    0%, 100% { transform: rotateY(0deg) rotateX(0deg); }
    25% { transform: rotateY(10deg) rotateX(-5deg); }
    50% { transform: rotateY(0deg) rotateX(0deg); }
    75% { transform: rotateY(-10deg) rotateX(5deg); }
}

.showcase-logo {
    width: 200px;
    height: 200px;
}

.showcase-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.5));
}

/* Product Details */
.product-details {
    padding: var(--spacing-2xl) 0;
}

.details-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
}

.details-main h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.details-main h3 {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.details-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.features-list li {
    color: var(--color-text-secondary);
    padding-left: var(--spacing-sm);
}

.delivery-info {
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.delivery-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--glass-border);
}

.delivery-item:last-child {
    border-bottom: none;
}

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

.delivery-item span {
    color: var(--color-text-secondary);
    text-align: right;
}

/* Purchase Card */
.purchase-card {
    padding: var(--spacing-xl);
    text-align: center;
    position: sticky;
    top: var(--spacing-lg);
}

.purchase-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.purchase-price {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.purchase-button {
    width: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-text-primary);
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.3);
    margin-bottom: var(--spacing-lg);
}

.purchase-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 212, 255, 0.5);
}

.purchase-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.purchase-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.purchase-feature svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

/* FAQ Section */
.product-faq {
    padding: var(--spacing-2xl) 0;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.faq-item {
    padding: 0;
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: transparent;
    border: none;
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    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-base);
}

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

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .how-grid {
        grid-template-columns: 1fr;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .purchase-card {
        position: static;
    }

    /* Hero: tablet adjustments */
    .hero-section {
        min-height: 90vh;
        padding: calc(70px + var(--spacing-xl)) var(--spacing-lg) var(--spacing-xl);
    }
    .hero-content {
        max-width: 720px;
        padding: 0 var(--spacing-md);
    }
    .logo-carousel-section {
        margin-top: var(--spacing-xl);
    }
    .logo-item {
        width: 130px;
        height: 56px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .hero-section {
        min-height: 85vh;
        padding: calc(70px + var(--spacing-lg)) var(--spacing-md) var(--spacing-lg);
    }
    .hero-content { max-width: 560px; }
    .hero-title { line-height: 1.15; }
    .hero-subtitle { font-size: var(--font-size-base); }
    .cta-button {
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .logo-carousel {
        gap: var(--spacing-lg);
    }
    
    .logo-item { width: 110px; height: 52px; }
    
    .qr-image {
        width: 200px;
        height: 200px;
    }
    
    .modal-qr-image {
        width: 200px;
        height: 200px;
    }
    
    .showcase-card {
        width: 300px;
        height: 300px;
    }
    
    .showcase-logo {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    /* Hero: small phones */
    .hero-section {
        min-height: 75vh;
        padding: calc(70px + var(--spacing-md)) var(--spacing-md) var(--spacing-md);
    }
    .hero-content { max-width: 100%; }
    .hero-title { font-weight: 800; }
    .hero-subtitle { max-width: 100%; }
    .logo-carousel-section { margin-top: var(--spacing-lg); }
    .logo-item { width: 100px; height: 48px; }
    
    .product-hero-logo {
        width: 100px;
        height: 100px;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .hero-canvas,
    .mockup-3d,
    .showcase-3d {
        animation: none !important;
    }
}

/* Print Styles */
@media print {
    .hero-canvas,
    .modal,
    .scroll-indicator {
        display: none !important;
    }
}