/* --- CSS VARIABLES & THEMING --- */
        :root {
            --bg-primary: #ffffff;
            --bg-secondary: #f5f5f7;
            --bg-ai: #000000;
            --text-primary: #1d1d1f;
            --text-secondary: #86868b;
            --text-inverse: #f5f5f7;
            --accent: #0066cc;
            --accent-hover: #004499;
            --accent-gradient: linear-gradient(135deg, #2997ff, #b200ff);
            --border-color: rgba(0, 0, 0, 0.1);
            --header-bg: rgba(255, 255, 255, 0.8);
            --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            --card-hover-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        [data-theme="dark"] {
            --bg-primary: #000000;
            --bg-secondary: #1d1d1f;
            --bg-ai: #0a0a0c;
            --text-primary: #f5f5f7;
            --text-secondary: #86868b;
            --text-inverse: #f5f5f7;
            --accent: #2997ff;
            --accent-hover: #147ce6;
            --border-color: rgba(255, 255, 255, 0.1);
            --header-bg: rgba(0, 0, 0, 0.8);
            --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            --card-hover-shadow: 0 20px 40px rgba(255, 255, 255, 0.05);
        }

        /* --- RESET & BASE --- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: 'Outfit', sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.5;
            transition: background-color 0.4s ease, color 0.4s ease;
            overflow-x: hidden;
        }

        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        button { cursor: pointer; border: none; background: none; font-family: inherit; }
        img { max-width: 100%; display: block; }

        ::-webkit-scrollbar { width: 10px; }
        ::-webkit-scrollbar-track { background: var(--bg-primary); }
        ::-webkit-scrollbar-thumb { background: var(--text-secondary); border-radius: 5px; }

        .container {
            width: 90%;
            max-width: 1400px;
            margin: 0 auto;
        }

        /* --- SCROLL ANIMATIONS --- */
        .reveal {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.8s cubic-bezier(0.5, 0, 0, 1), transform 0.8s cubic-bezier(0.5, 0, 0, 1);
            will-change: opacity, transform;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        .delay-1 { transition-delay: 0.1s; }
        .delay-2 { transition-delay: 0.2s; }
        .delay-3 { transition-delay: 0.3s; }

        /* --- HEADER & NAV --- */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background: var(--header-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            z-index: 1001;
        }

        /* Mobile & Desktop Nav */
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: var(--bg-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            z-index: 1000;
        }

        .main-nav.active {
            opacity: 1;
            pointer-events: all;
        }

        .main-nav ul {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            text-align: center;
        }

        .main-nav a {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.3s ease;
        }

        @media (min-width: 768px) {
            .main-nav {
                position: static;
                height: auto;
                width: auto;
                background: transparent;
                opacity: 1;
                pointer-events: all;
                flex-direction: row;
            }
            .main-nav ul {
                flex-direction: row;
                gap: 2rem;
            }
            .main-nav a {
                font-size: 0.95rem;
                font-weight: 500;
            }
            .main-nav a:hover { color: var(--accent); }
            .menu-toggle { display: none !important; }
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            z-index: 1001;
        }

        .icon-btn {
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s ease, color 0.2s ease;
            position: relative;
        }

        .icon-btn:hover { color: var(--accent); transform: scale(1.1); }

        .menu-toggle {
            display: block;
        }

        .cart-count {
            position: absolute;
            top: -5px;
            right: -8px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            height: 18px;
            width: 18px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* --- HERO SECTION --- */
        .hero {
            padding: 150px 0 100px;
            text-align: center;
            background: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            overflow: hidden;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 6vw, 5rem);
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: clamp(1.1rem, 2vw, 1.5rem);
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2.5rem;
            font-weight: 300;
        }

        .btn-primary {
            background: var(--text-primary);
            color: var(--bg-primary);
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-block;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }

        .hero-image-wrapper {
            margin-top: 4rem;
            position: relative;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
            perspective: 1000px;
        }

        .hero-image-wrapper img {
            border-radius: 20px;
            box-shadow: var(--card-hover-shadow);
            transform: rotateX(5deg) scale(1.05);
            transition: transform 1s cubic-bezier(0.1, 0, 0.2, 1);
        }

        .hero-image-wrapper:hover img {
            transform: rotateX(0deg) scale(1);
        }

        /* --- GALAXY AI SECTION (NEW) --- */
        .galaxy-ai {
            padding: 8rem 0;
            background-color: var(--bg-ai);
            color: var(--text-inverse);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .galaxy-ai::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(41,151,255,0.1) 0%, rgba(178,0,255,0.05) 30%, transparent 60%);
            animation: rotate 20s linear infinite;
        }

        @keyframes rotate { 100% { transform: rotate(360deg); } }

        .ai-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .ai-badge {
            display: inline-block;
            background: var(--accent-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 1rem;
            letter-spacing: 2px;
            text-transform: uppercase;
        }

        .galaxy-ai h2 {
            font-size: clamp(2rem, 5vw, 4rem);
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.1;
        }

        .galaxy-ai p {
            font-size: 1.2rem;
            color: #a1a1a6;
            margin-bottom: 3rem;
        }

        .ai-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            text-align: left;
        }

        .ai-feature-card {
            background: rgba(255,255,255,0.05);
            padding: 2rem;
            border-radius: 20px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.1);
        }

        .ai-feature-card h3 { font-size: 1.5rem; margin-bottom: 0.5rem; color: #fff;}
        .ai-feature-card p { font-size: 1rem; margin-bottom: 0; }

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

        /* --- INNOVATION SECTION (NEW) --- */
        .innovation {
            padding: 6rem 0;
            background: var(--bg-primary);
        }

        .innovation-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 4rem;
            align-items: center;
        }

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

        .innovation-text h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }

        .innovation-text p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
        }

        .innovation-image img {
            border-radius: 20px;
            box-shadow: var(--card-shadow);
        }

        /* --- CATALOG SECTION --- */
        .catalog {
            padding: 6rem 0;
            background: var(--bg-secondary);
        }

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-header h2 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        /* Filters */
        .filters {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 0.6rem 1.2rem;
            border-radius: 30px;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }

        .filter-btn.active, .filter-btn:hover {
            background: var(--text-primary);
            color: var(--bg-primary);
            border-color: var(--text-primary);
        }

        /* Product Grid - Forced 2 Column Mobile */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr); /* Mobile default: 2 columns */
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .product-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
                gap: 2rem;
            }
            .filter-btn { padding: 0.8rem 1.5rem; font-size: 1rem; gap: 1rem;}
        }

        .product-card {
            background: var(--bg-primary);
            border-radius: 16px;
            padding: 1rem;
            text-align: center;
            transition: all 0.4s ease;
            border: 1px solid transparent;
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        @media (min-width: 768px) {
            .product-card { padding: 2rem; border-radius: 20px; }
        }

        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--card-hover-shadow);
            border-color: var(--border-color);
        }

        .product-image {
            height: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
        }

        @media (min-width: 768px) {
            .product-image { height: 220px; margin-bottom: 1.5rem; }
        }

        .product-image img {
            max-height: 100%;
            object-fit: contain;
            transition: transform 0.5s ease;
        }

        .product-card:hover .product-image img { transform: scale(1.08); }

        .product-tag {
            position: absolute;
            top: 0.8rem;
            left: 0.8rem;
            background: var(--accent);
            color: #fff;
            font-size: 0.6rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 20px;
            text-transform: uppercase;
        }

        .product-title {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            height: 2.8em; /* Reserve space for 2 lines */
        }

        .product-price {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }

        @media (min-width: 768px) {
            .product-title { font-size: 1.25rem; height: auto; display: block; margin-bottom: 0.5rem;}
            .product-price { font-size: 1.1rem; margin-bottom: 1.5rem; }
            .product-tag { top: 1rem; left: 1rem; font-size: 0.7rem; padding: 0.3rem 0.8rem; }
        }

        .add-to-cart {
            width: 100%;
            padding: 0.6rem;
            border-radius: 8px;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-weight: 600;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 6px;
            transition: all 0.3s ease;
            font-size: 0.8rem;
        }

        @media (min-width: 768px) {
            .add-to-cart { padding: 1rem; border-radius: 12px; font-size: 1rem; }
        }

        .product-card:hover .add-to-cart {
            background: var(--text-primary);
            color: var(--bg-primary);
            border-color: var(--text-primary);
        }

        /* --- ECOSYSTEM BANNER --- */
        .ecosystem {
            padding: 6rem 0;
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .ecosystem-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .ecosystem h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .ecosystem p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            margin-bottom: 2rem;
        }

        /* --- FOOTER --- */
        footer {
            padding: 4rem 0 2rem;
            background: var(--bg-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
            font-weight: 600;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .footer-col a {
            color: var(--text-secondary);
            transition: color 0.3s ease;
            font-size: 0.95rem;
        }

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

        .footer-bottom {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
            text-align: center;
            gap: 1rem;
        }

        .creator-credit {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

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

        /* --- CART SIDEBAR --- */
        .cart-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.4);
            backdrop-filter: blur(4px);
            z-index: 1999;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .cart-overlay.active { opacity: 1; pointer-events: all; }

        .cart-panel {
            position: fixed;
            top: 0;
            right: -100%;
            width: 100%;
            max-width: 400px;
            height: 100%;
            background: var(--header-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid var(--border-color);
            z-index: 2000;
            display: flex;
            flex-direction: column;
            transition: right 0.4s cubic-bezier(0.1, 0, 0.2, 1);
            box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        }

        .cart-panel.active { right: 0; }

        .cart-header {
            padding: 1.5rem;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .cart-header h3 { font-size: 1.2rem; }
        .close-cart { font-size: 1.5rem; color: var(--text-secondary); }

        .cart-items {
            flex: 1;
            overflow-y: auto;
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .cart-item { display: flex; gap: 1rem; align-items: center; }
        .cart-item img {
            width: 70px; height: 70px; object-fit: cover; border-radius: 10px;
            background: var(--bg-secondary); padding: 5px;
        }

        .cart-item-details { flex: 1; }
        .cart-item-title { font-weight: 600; font-size: 0.95rem; }
        .cart-item-price { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.2rem;}
        
        .cart-item-quantity {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }
        .cart-item-quantity button {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            width: 24px;
            height: 24px;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            transition: background 0.2s;
        }
        .cart-item-quantity button:hover {
            background: var(--border-color);
        }
        .cart-item-quantity span {
            font-size: 0.9rem;
            font-weight: 600;
        }

        .remove-item { color: #ff3b30; font-size: 1.2rem; padding: 0.5rem; }

        .cart-footer { padding: 1.5rem; border-top: 1px solid var(--border-color); background: var(--bg-primary); }
        .cart-total { display: flex; justify-content: space-between; font-size: 1.2rem; font-weight: 700; margin-bottom: 1rem; }
        .checkout-btn { width: 100%; background: var(--text-primary); color: var(--bg-primary); padding: 1rem; border-radius: 12px; font-weight: 600; font-size: 1rem; }
        .empty-cart-msg { text-align: center; color: var(--text-secondary); margin-top: 2rem; }