@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ===== CSS RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

:root {
    --neon-green: #BFFF00;
    --dark-bg: #0a0a0a;
    --gray-900: #111111;
    --gray-800: #1a1a1a;
    --gray-700: #2a2a2a;
    --gray-600: #3a3a3a;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
}

body {
    background: linear-gradient(to bottom, #0a0a0a 0%, #0f1e0f 50%, #0a0a0a 100%);
    color: #ffffff;
    line-height: 1.5;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

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

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

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

ul {
    list-style: none;
}

/* ===== LAYOUT ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-small {
    max-width: 768px;
    margin: 0 auto;
    padding: 0 1.5rem;
    text-align: center;
}

.section {
    padding: 6rem 1.5rem;
}

/* ===== HEADER ===== */
.header-sticky {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.nav {
    display: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.875rem;
    color: var(--gray-300);
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--neon-green);
}

.cart-icon {
    position: relative;
    cursor: pointer;
}

.icon {
    width: 1.5rem;
    height: 1.5rem;
}

.icon-sm {
    width: 1.25rem;
    height: 1.25rem;
}

.icon.black {
    stroke: #000;
}

.cart-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--neon-green);
    color: #000;
    font-size: 11px;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
    
    .header-sticky {
        padding: 1rem 3rem;
    }
}

/* ===== HERO SECTION ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    position: relative;
    background: radial-gradient(ellipse at center bottom, rgba(191, 255, 0, 0.1) 0%, transparent 70%);
}

.hero-grid {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.hero-label {
    color: var(--neon-green);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.hero-title {
    font-size: 3.75rem;
    font-weight: 900;
    line-height: 1;
}

.neon-text {
    color: var(--neon-green);
}

.hero-description {
    color: var(--gray-400);
    font-size: 1.125rem;
    max-width: 28rem;
}

.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.neon-button {
    background: var(--neon-green);
    color: #000;
    font-weight: 700;
    padding: 1rem 2rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(191, 255, 0, 0.4);
    white-space: nowrap;
}

.neon-button:hover {
    box-shadow: 0 0 40px rgba(191, 255, 0, 0.6);
    transform: translateY(-2px);
}

.outline-button {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 9999px;
    transition: all 0.3s ease;
}

.outline-button:hover {
    border-color: var(--neon-green);
    color: var(--neon-green);
}

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

.model-viewer {
    width: 100%;
    height: 1000px;
    max-width: 1100px;
    margin: 0 auto;
    --poster-color: transparent;
}

@media (min-width: 768px) {
    .model-viewer {
        height: 700px;
    }
}

@media (min-width: 1024px) {
    .model-viewer {
        height: 800px;
    }
}

.featured-sneaker {
    width: 100%;
    max-width: 32rem;
    margin: 0 auto;
    transform: scale(1);
    transition: transform 0.5s ease;
    filter: drop-shadow(0 0 60px rgba(191, 255, 0, 0.3));
}

.featured-sneaker:hover {
    transform: scale(1.05);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    animation: bounce 2s infinite;
}

.scroll-text {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
}

.scroll-line {
    width: 1px;
    height: 3rem;
    background: linear-gradient(to bottom, var(--neon-green), transparent);
    margin: 0 auto;
}

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

@media (min-width: 1024px) {
    .hero-section {
        padding-left: 3rem;
        padding-right: 3rem;
    }
    
    .hero-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 5rem;
    }
}

@media (min-width: 1280px) {
    .hero-title {
        font-size: 6rem;
    }
}

/* ===== TICKER BANNER ===== */
.ticker-banner {
    background: var(--neon-green);
    padding: 1rem 0;
    overflow: hidden;
    margin-top: 5rem;
}

.ticker-content {
    animation: scroll-left 30s linear infinite;
    display: flex;
    white-space: nowrap;
}

.ticker-items {
    display: flex;
    gap: 3rem;
    color: #000;
    font-weight: 700;
    font-size: 1.125rem;
}

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

/* ===== SECTION HEADERS ===== */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header-left {
    margin-bottom: 3rem;
}

.section-label {
    color: var(--neon-green);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
}

.section-description {
    color: var(--gray-400);
    margin-top: 1rem;
}

.section-cta {
    text-align: center;
    margin-top: 3rem;
}

@media (min-width: 1024px) {
    .section-title {
        font-size: 3.75rem;
    }
}

/* ===== PRODUCTS GRID ===== */
.products-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.product-card {
    background: rgba(20, 20, 20, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.4s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(191, 255, 0, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.product-image-wrapper {
    position: relative;
}

.new-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 10;
    background: var(--neon-green);
    color: #000;
    font-size: 11px;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.product-image-container {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.product-info {
    padding: 1.5rem;
}

.product-category {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
}

.color-selector {
    display: flex;
    gap: 0.5rem;
}

.color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

.color-dot:hover,
.color-dot.active {
    border-color: var(--neon-green);
    transform: scale(1.2);
}

.color-dot.white {
    background: #ffffff;
}

.color-dot.green {
    background: var(--neon-green);
}

.color-dot.gray {
    background: var(--gray-600);
}

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

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

/* ===== CATEGORIES GRID ===== */
.categories-grid {
    display: grid;
    gap: 1.5rem;
}

.category-card {
    background: linear-gradient(135deg, rgba(40, 60, 30, 0.4) 0%, rgba(20, 40, 20, 0.6) 100%);
    border: 1px solid rgba(191, 255, 0, 0.1);
    border-radius: 1rem;
    padding: 3rem;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(191, 255, 0, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.category-card:hover::before {
    opacity: 1;
}

.category-card:hover {
    transform: translateY(-10px);
    border-color: rgba(191, 255, 0, 0.4);
    box-shadow: 0 20px 40px rgba(191, 255, 0, 0.1);
}

.category-card.dark {
    background: linear-gradient(135deg, rgba(20, 20, 20, 0.8) 0%, rgba(10, 10, 10, 0.9) 100%);
}

.category-card.bright {
    background: linear-gradient(135deg, rgba(60, 80, 40, 0.6) 0%, rgba(40, 60, 30, 0.8) 100%);
}

.category-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.category-count {
    color: var(--gray-400);
    position: relative;
    z-index: 1;
}

.category-count.light {
    color: var(--gray-300);
}

.arrow-icon {
    position: absolute;
    top: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.arrow-icon.dark-bg {
    background: rgba(0, 0, 0, 0.3);
}

.arrow-icon.light-bg {
    background: rgba(255, 255, 255, 0.1);
}

.arrow-icon.neon-bg {
    background: var(--neon-green);
}

.category-card:hover .arrow-icon {
    transform: translate(5px, -5px);
}

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

/* ===== NEWSLETTER SECTION ===== */
.newsletter-section {
    padding: 6rem 1.5rem;
    background: radial-gradient(ellipse at center, rgba(191, 255, 0, 0.05) 0%, transparent 70%);
}

.newsletter-description {
    color: var(--gray-400);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 40rem;
    margin: 0 auto;
}

.newsletter-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 9999px;
    padding: 1rem 1.5rem;
    color: #fff;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.newsletter-input::placeholder {
    color: var(--gray-500);
}

.newsletter-disclaimer {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 1.5rem;
}

@media (min-width: 640px) {
    .newsletter-form {
        flex-direction: row;
    }
}

/* ===== FOOTER ===== */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4rem 1.5rem;
}

.footer-grid {
    display: grid;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-description {
    color: var(--gray-400);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--neon-green);
    color: #000;
}

.footer-heading {
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--gray-400);
    transition: color 0.3s ease;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.copyright {
    text-align: center;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .section {
        padding: 6rem 3rem;
    }
}