/* ============================================
   NEXURA E-COMMERCE STYLES
   Design System: Acid Neon + Brutalist Elements
   ============================================ */

/* CSS Variables */
:root {
    /* Acid Neon Palette */
    --color-primary: #CCFF00;
    --color-accent: #FF3CAC;
    --color-bg-dark: #0D0D0D;
    --color-bg-darker: #1A1A2E;
    --color-surface: #1A1A1A;
    --color-text: #FFFFFF;
    --color-text-muted: #A0A0A0;
    --color-border: #333333;
    
    /* Typography */
    --font-display: 'Clash Display', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

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

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

a {
    color: inherit;
    text-decoration: none;
}

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

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

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-lg);
    transition: var(--transition-base);
}

.nav.scrolled {
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

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

.logo-text {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    padding: var(--space-xs) 0;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition-fast);
    position: relative;
}

.icon-btn:hover {
    background: var(--color-surface);
}

.cart-btn {
    position: relative;
}

.cart-count {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 18px;
    height: 18px;
    background: var(--color-primary);
    color: var(--color-bg-dark);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-xs);
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: calc(var(--space-3xl) + 80px) var(--space-xl) var(--space-3xl);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(204, 255, 0, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 60, 172, 0.08) 0%, transparent 40%);
}

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

.hero-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-md);
}

.title-line {
    display: block;
}

.title-line.accent {
    color: var(--color-primary);
    text-shadow: 0 0 40px rgba(204, 255, 0, 0.3);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    max-width: 480px;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.hero-image-placeholder {
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-darker) 100%);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    position: relative;
    overflow: hidden;
}

.hero-image-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(45deg, transparent 48%, rgba(204, 255, 0, 0.1) 50%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255, 60, 172, 0.1) 50%, transparent 52%);
    background-size: 20px 20px;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(204, 255, 0, 0.3);
}

.btn-outline {
    border: 2px solid var(--color-text);
    color: var(--color-text);
}

.btn-outline:hover {
    background: var(--color-text);
    color: var(--color-bg-dark);
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
section {
    padding: var(--space-3xl) var(--space-xl);
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

.section-link {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: var(--transition-fast);
}

.section-link:hover {
    gap: var(--space-sm);
}

/* ============================================
   COLLECTIONS
   ============================================ */
.collections-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.collection-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/5;
}

.collection-card.large {
    grid-row: span 2;
    aspect-ratio: auto;
}

.collection-image {
    position: absolute;
    inset: 0;
}

.placeholder-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-darker) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-text-muted);
    transition: var(--transition-base);
}

.collection-card:hover .placeholder-img {
    transform: scale(1.05);
}

.collection-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: linear-gradient(to top, rgba(13, 13, 13, 0.95), transparent);
}

.collection-info h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.collection-info p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.collection-link {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
}

/* ============================================
   PRODUCTS
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.product-card {
    position: relative;
}

.product-image {
    position: relative;
    aspect-ratio: 3/4;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-md);
    background: var(--color-surface);
}

.product-image .placeholder-img {
    font-size: 1rem;
}

.quick-add {
    position: absolute;
    bottom: var(--space-sm);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-primary);
    color: var(--color-bg-dark);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    opacity: 0;
    transition: var(--transition-base);
}

.product-card:hover .quick-add {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.product-badge {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-sm);
}

.product-badge.new {
    background: var(--color-primary);
    color: var(--color-bg-dark);
}

.product-badge.limited {
    background: var(--color-accent);
    color: var(--color-text);
}

.product-info {
    padding: 0 var(--space-xs);
}

.product-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.product-price {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.product-colors {
    display: flex;
    gap: var(--space-xs);
}

.color-swatch {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
}

.color-swatch:hover {
    border-color: var(--color-text);
}

/* ============================================
   BRAND STATEMENT
   ============================================ */
.brand-statement {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-3xl);
    text-align: center;
    max-width: 1200px;
}

.statement-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.statement-text {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.statement-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   NEWSLETTER
   ============================================ */
.newsletter {
    text-align: center;
    max-width: 600px;
}

.newsletter-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.newsletter-text {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.newsletter-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.newsletter-input::placeholder {
    color: var(--color-text-muted);
}

.newsletter-disclaimer {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-surface);
    padding: var(--space-3xl) var(--space-xl) var(--space-lg);
    margin-top: var(--space-2xl);
}

.footer-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo-text {
    display: block;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-primary);
    color: var(--color-bg-dark);
    border-color: var(--color-primary);
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--space-lg);
}

.footer-legal a {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--color-text);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-xl);
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-image-container {
        max-width: 350px;
    }
    
    .collections-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .collection-card.large {
        grid-row: span 1;
    }
    
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding-top: calc(var(--space-2xl) + 80px);
    }
    
    .collections-grid {
        grid-template-columns: 1fr;
    }
    
    .collection-card {
        aspect-ratio: 16/9;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .statement-stats {
        gap: var(--space-xl);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        margin-left: auto;
        margin-right: auto;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 4rem;
    }
    
    .nav {
        padding: var(--space-sm) var(--space-md);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

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

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}