:root {
            --black: #000000;
            --cyan: #03AED2;
            --white: #FFFFFF;
            --gray: #B7B89F;
            --dark-gray: #111111;
            --light-bg: #f8f8f8;
        }

        body {
            font-family: 'Dosis', sans-serif;
            background-color: var(--black);
            color: var(--white);
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        /* --- TYPOGRAPHY CLASSES --- */
        .dosis-200 { font-weight: 200; }
        .dosis-400 { font-weight: 400; }
        .dosis-600 { font-weight: 600; }
        .dosis-800 { font-weight: 800; }

        /* --- NEON & TECH UI --- */
        .neon-text { color: var(--cyan); text-shadow: 0 0 12px rgba(3, 174, 210, 0.6); }
        .neon-border { border: 1px solid var(--cyan); box-shadow: 0 0 15px rgba(3, 174, 210, 0.2); }
        .grid-bg {
            background-image: linear-gradient(rgba(3, 174, 210, 0.05) 1px, transparent 1px), 
                              linear-gradient(90deg, rgba(3, 174, 210, 0.05) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        header {
            background: rgba(0, 0, 0, 0.85);
            backdrop-filter: blur(15px);
            z-index: 1000;
            transition: all 0.4s ease;
        }

        .nav-link {
            color: var(--cyan);
            font-weight: 600;
            letter-spacing: 2px;
            transition: 0.3s;
            position: relative;
        }
        .nav-link:hover { color: white; }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background: var(--cyan);
            transition: 0.3s;
        }
        .nav-link:hover::after { width: 100%; }

        /* --- HERO ANIMATION --- */
        .hero-bg-anim {
            background: radial-gradient(circle at center, #001a20 0%, #000000 100%);
            position: relative;
            overflow: hidden;
        }
        .neural-node {
            position: absolute;
            background: var(--cyan);
            border-radius: 50%;
            opacity: 0.3;
            filter: blur(2px);
            animation: pulse 4s infinite alternate;
        }
        @keyframes pulse {
            0% { transform: scale(1); opacity: 0.2; }
            100% { transform: scale(1.5); opacity: 0.5; }
        }

        .hero-btn {
            background: var(--cyan);
            color: black;
            padding: 16px 40px;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 2px;
            border-radius: 4px;
            transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        .hero-btn:hover {
            transform: translateY(-5px) scale(1.05);
            box-shadow: 0 10px 30px rgba(3, 174, 210, 0.5);
            background: white;
        }

        /* --- PRODUCT CARDS & CAROUSELS --- */
        .product-card {
            background: #0a0a0a;
            border: 1px solid #1a1a1a;
            transition: 0.4s;
            position: relative;
            overflow: hidden;
        }
        .product-card:hover {
            border-color: var(--cyan);
            transform: translateY(-8px);
        }
        .sliding-track {
            display: flex;
            width: fit-content;
            animation: slideLeft 40s linear infinite;
        }
        @keyframes slideLeft {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* --- CART SIDEBAR --- */
        #cart-sidebar {
            position: fixed;
            right: -400px;
            top: 0;
            width: 400px;
            height: 100vh;
            background: #050505;
            z-index: 1001;
            transition: 0.5s cubic-bezier(0.77, 0, 0.175, 1);
            border-left: 1px solid var(--cyan);
            padding: 40px;
            display: flex;
            flex-direction: column;
        }
        #cart-sidebar.open { right: 0; }

        /* --- QUICKVIEW MODAL --- */
        #qv-modal {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.95);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        .modal-content {
            background: #0a0a0a;
            width: 100%;
            max-width: 1200px;
            max-height: 90vh;
            border: 1px solid rgba(3, 174, 210, 0.3);
            display: grid;
            grid-template-columns: 1fr 1fr;
            overflow: hidden;
        }
        @media (max-width: 768px) { .modal-content { grid-template-columns: 1fr; overflow-y: auto; } }

        /* --- PAGE SYSTEM --- */
        .page { display: none; }
        .page.active { display: block; }

        .back-to-top {
            position: fixed;
            bottom: 40px;
            right: 40px;
            width: 50px;
            height: 50px;
            background: var(--cyan);
            color: black;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            cursor: pointer;
            z-index: 500;
            opacity: 0;
            transition: 0.3s;
        }
        .back-to-top.show { opacity: 1; }

        .tech-card-asymmetric {
            background: var(--light-bg);
            border-radius: 12px;
            padding: 60px;
            color: black;
            position: relative;
            clip-path: polygon(0 0, 100% 0, 100% 90%, 90% 100%, 0 100%);
        }

        /* Notifications */
        .toast {
            position: fixed;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--cyan);
            color: black;
            padding: 12px 24px;
            font-weight: 800;
            border-radius: 4px;
            z-index: 3000;
            display: none;
        }