:root {
    --bg-dark: #0a0a0a;
    --bg-card: #141414;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --neon-green: #00ff88;
    --neon-green-glow: rgba(0, 255, 136, 0.4);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --font-head: 'Orbitron', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-head);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: 1px;
}

.logo-icon {
    color: var(--neon-green);
    filter: drop-shadow(0 0 5px var(--neon-green-glow));
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--neon-green);
    text-shadow: 0 0 10px var(--neon-green-glow);
}

.nav-actions {
    display: flex;
    gap: 1rem;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition);
}

.icon-btn:hover {
    color: var(--neon-green);
}

.mobile-menu-btn {
    display: none;
    cursor: pointer;
}

/* --- Hero Section --- */
.hero {
    height: 90vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    margin-top: 60px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    transition: transform 5s ease;
}

.hero:hover .hero-bg {
    transform: scale(1.05);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, var(--bg-dark), transparent 80%),
                linear-gradient(to right, rgba(0,0,0,0.8), transparent);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.glitch {
    font-family: var(--font-head);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    position: relative;
}

/* Simple glitch effect */
.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    left: 2px;
    text-shadow: -1px 0 red;
    clip: rect(24px, 550px, 90px, 0);
    animation: glitch-anim 3s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -1px 0 blue;
    clip: rect(85px, 550px, 140px, 0);
    animation: glitch-anim 2s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(14px, 9999px, 86px, 0); }
    20% { clip: rect(65px, 9999px, 19px, 0); }
    40% { clip: rect(98px, 9999px, 7px, 0); }
    60% { clip: rect(5px, 9999px, 83px, 0); }
    80% { clip: rect(27px, 9999px, 44px, 0); }
    100% { clip: rect(56px, 9999px, 12px, 0); }
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 2rem;
    font-family: var(--font-head);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--neon-green);
    color: #000;
    clip-path: polygon(10% 0, 100% 0, 100% 70%, 90% 100%, 0 100%, 0 30%);
}

.btn-primary:hover {
    background: #fff;
    box-shadow: 0 0 20px var(--neon-green-glow);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
}

.btn-outline:hover {
    background: rgba(0, 255, 136, 0.1);
}

/* --- Filters --- */
.filters-section {
    padding: 2rem 0;
    border-bottom: 1px solid var(--glass-border);
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    padding: 0.5rem 1.5rem;
    font-family: var(--font-head);
    cursor: pointer;
    transition: var(--transition);
    border-radius: 4px;
}

.filter-btn:hover, .filter-btn.active {
    border-color: var(--neon-green);
    color: var(--neon-green);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.1);
}

/* --- Catalog --- */
.catalog-section {
    padding: 4rem 0;
}

.section-header {
    margin-bottom: 3rem;
    text-align: center;
}

.section-header h2 {
    font-family: var(--font-head);
    font-size: 2.5rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.line-accent {
    width: 60px;
    height: 4px;
    background: var(--neon-green);
    margin: 0 auto;
    box-shadow: 0 0 10px var(--neon-green-glow);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--neon-green);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--neon-green);
    color: #000;
    padding: 4px 8px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    font-family: var(--font-head);
    z-index: 10;
}

.card-image {
    height: 250px;
    width: 100%;
    overflow: hidden;
    background: #1a1a1a;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .card-image img {
    transform: scale(1.1);
}

.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-category {
    color: var(--neon-green);
    font-size: 0.8rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.card-title {
    font-family: var(--font-head);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.card-rating {
    color: #f1c40f;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.card-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-price {
    font-size: 1.3rem;
    font-weight: 700;
}

.btn-buy {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-buy:hover {
    background: var(--neon-green);
    color: #000;
    border-color: var(--neon-green);
}

/* --- Comparison --- */
.compare-section {
    background: linear-gradient(to bottom, var(--bg-dark), #111);
    padding: 4rem 0;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.compare-header {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--neon-green);
    margin-bottom: 1rem;
    height: 60px; /* fixed height for alignment */
    display: flex;
    align-items: center;
}

.compare-row {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    height: 60px;
    display: flex;
    align-items: center;
}

.product-col {
    text-align: center;
}

.product-col .compare-header {
    justify-content: center;
    color: var(--text-main);
    flex-direction: column;
    gap: 0.5rem;
    height: auto;
    margin-bottom: 2rem;
}

.product-col .compare-row {
    justify-content: center;
}

.compare-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 1rem;
}

/* --- Trending --- */
.trending-section {
    padding: 4rem 0;
    overflow: hidden;
}

.trending-marquee {
    width: 100%;
    overflow-x: hidden;
    position: relative;
    padding: 2rem 0;
}

.marquee-content {
    display: flex;
    gap: 2rem;
    animation: scroll 20s linear infinite;
    width: max-content;
}

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

.trending-card {
    min-width: 250px;
    background: var(--bg-card);
    border-radius: 8px;
    padding: 1rem;
    border: 1px solid var(--glass-border);
}

.trending-card img {
    height: 150px;
    width: 100%;
    object-fit: cover;
    margin-bottom: 1rem;
}

/* --- Footer --- */
.footer {
    background: #000;
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--glass-border);
}

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

.footer-brand h3 {
    color: var(--neon-green);
    font-family: var(--font-head);
    margin-bottom: 1rem;
}

.footer-links h4, .footer-legal h4 {
    color: var(--text-main);
    margin-bottom: 1.5rem;
    font-family: var(--font-head);
}

.footer-links ul li, .footer-legal ul li {
    margin-bottom: 0.8rem;
}

.footer-links a:hover, .footer-legal a:hover {
    color: var(--neon-green);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.disclaimer {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* --- Mobile Responsive --- */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple hide for vanilla demo, ideally toggle */
    }
    .mobile-menu-btn {
        display: block;
    }
    .hero {
        height: auto;
        padding: 6rem 0 4rem;
        text-align: center;
    }
    .hero-content {
        margin: 0 auto;
    }
    .glitch {
        font-size: 2.5rem;
    }
    .comparison-grid {
        grid-template-columns: 1fr 1fr; /* hide labels or stack */
        overflow-x: auto;
    }
    .compare-col.labels {
        display: none;
    }
}