:root {
    --primary: #0077B6;
    --secondary: #90E0EF;
    --bg-dark: #0a0a0b;
    --bg-card: #161618;
    --text-main: #f8f9fa;
    --text-muted: #a0a0a5;
    --border: rgba(255, 255, 255, 0.08);
    --glass: rgba(255, 255, 255, 0.03);
    --accent-gradient: linear-gradient(135deg, #0077B6 0%, #00b4d8 100%);
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, .logo {
    font-family: 'Orbitron', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(15px);
    border-bottom: var(--border);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

.logo {
    font-size: 1.6rem;
    font-weight: 900;
    text-decoration: none;
    color: white;
}

.logo span {
    color: var(--primary);
}

.main-nav a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s;
}

.main-nav a:hover {
    color: var(--primary);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at center, rgba(0, 119, 182, 0.15) 0%, transparent 70%);
    padding: 150px 20px 100px;
}

.hero h1 {
    font-size: clamp(3rem, 10vw, 7rem);
    line-height: 1;
    margin-bottom: 20px;
    font-weight: 900;
}

.hero h1 span {
    color: transparent;
    -webkit-text-stroke: 1px var(--primary);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 4px;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 10px 20px rgba(0, 119, 182, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 119, 182, 0.4);
}

.btn-outline {
    border: 1px solid var(--border);
    color: white;
    background: var(--glass);
}

.btn-outline:hover {
    background: white;
    color: black;
}

.btn-lg {
    padding: 20px 45px;
    font-size: 1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-card {
    width: 100%;
    text-align: center;
    background: var(--border);
    color: white;
    margin-top: 20px;
}

.btn-card:hover {
    background: var(--primary);
}

/* Catalogue */
.catalogue-section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 60px;
    text-align: center;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.featured-section {
    padding: 120px 0;
}

.featured-slider {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(280px, 340px);
    gap: 25px;
    overflow-x: auto;
    padding-bottom: 10px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
}

.featured-slider::-webkit-scrollbar {
    height: 10px;
}

.featured-slider::-webkit-scrollbar-thumb {
    background: rgba(0, 119, 182, 0.35);
    border-radius: 999px;
}

.featured-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 520px;
    scroll-snap-align: start;
}

.featured-image {
    min-height: 240px;
    background: rgba(255,255,255,0.03);
    display: flex;
    justify-content: center;
    align-items: center;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-copy {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.featured-brand {
    color: var(--primary);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    font-weight: 700;
}

.featured-copy h3 {
    font-size: 1.3rem;
    line-height: 1.2;
}

.featured-category {
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
}

.featured-card .price {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--secondary);
    font-family: 'Orbitron', sans-serif;
}

@media (max-width: 992px) {
    .featured-slider {
        grid-auto-columns: minmax(240px, 300px);
    }
}

@media (max-width: 768px) {
    .featured-slider {
        grid-auto-columns: minmax(260px, 1fr);
    }
}

.catalogue-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.sort-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sort-group label {
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
}

.sort-select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 12px 16px;
    font-size: 0.9rem;
    border-radius: 8px;
    outline: none;
    min-width: 190px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    transition: all 0.3s;
}

.filter-btn.active, .filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 119, 182, 0.05);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 25px;
    display: flex;
    flex-direction: column;
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
}

.featured-card {
    position: relative;
}

.product-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 119, 182, 0.18);
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.65rem;
    padding: 8px 14px;
    border-radius: 999px;
    font-weight: 700;
    z-index: 2;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.page-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 42px;
    border-radius: 999px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    text-decoration: none;
    padding: 0 14px;
    transition: all 0.2s ease;
}

.page-item:hover,
.page-item.active {
    background: rgba(0, 119, 182, 0.16);
    color: var(--primary);
    border-color: rgba(0, 119, 182, 0.4);
}

.page-item.prev,
.page-item.next {
    padding: 0 16px;
}

@media (max-width: 768px) {
    .pagination { gap: 6px; }
    .page-item { min-width: 36px; height: 36px; }
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 119, 182, 0.4);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.product-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.05);
    padding: 5px 12px;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 4px;
    color: var(--primary);
    z-index: 2;
}

.product-image {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: radial-gradient(circle at center, rgba(255,255,255,0.03) 0%, transparent 70%);
}

.product-image img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    transition: transform 0.5s;
}

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

.product-info .category {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 5px;
}

.product-info h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    height: 2.8em;
    overflow: hidden;
}

.product-info .price {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--secondary);
    font-family: 'Orbitron', sans-serif;
}

/* Detailed View */
.product-detail-view {
    padding: 180px 0 100px;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: flex-start;
}

.detail-gallery {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: sticky;
    top: 150px;
}

.detail-gallery img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.5));
}

.detail-info .detail-brand {
    color: var(--primary);
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 1rem;
    display: block;
    margin-bottom: 15px;
}

.detail-info h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    line-height: 1.1;
}

.detail-info .category {
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 30px;
}

.detail-price {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--text-main);
    margin-bottom: 40px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.expert-opinion {
    background: rgba(0, 119, 182, 0.05);
    border-left: 4px solid var(--primary);
    padding: 25px;
    margin-bottom: 40px;
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--text-main);
}

.specs-list {
    margin-bottom: 40px;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
}

.spec-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.spec-value {
    font-weight: 700;
}

.product-extra {
    padding: 100px 0;
}

.product-extra-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.product-highlights,
.product-faq {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 35px;
}

.product-highlights h2,
.product-faq h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
}

.product-highlights ul {
    list-style: none;
    padding-left: 0;
}

.product-highlights li {
    margin-bottom: 18px;
    line-height: 1.8;
    color: var(--text-muted);
}

.product-highlights li::before {
    content: '•';
    color: var(--primary);
    display: inline-block;
    width: 1rem;
}

.faq-item {
    margin-bottom: 25px;
}

.faq-item strong {
    display: block;
    margin-bottom: 8px;
    color: white;
}

.faq-item p {
    color: var(--text-muted);
    line-height: 1.8;
}

.related-section {
    padding: 100px 0;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
}

.related-section .product-card {
    background: rgba(255,255,255,0.02);
}

.related-section h2 {
    margin-bottom: 40px;
}

/* About */
.about-section {
    padding: 120px 0;
    background: rgba(255, 255, 255, 0.01);
}

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-section h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.features-list {
    list-style: none;
    margin: 30px 0;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.features-list li i {
    color: var(--primary);
}

.image-box img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

/* Animations */
.reveal-on-scroll {
    opacity: 1;
    transform: none;
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: none;
}

/* Footer */
.main-footer {
    padding: 80px 0 40px;
    border-top: var(--border);
    margin-top: 100px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-info .logo {
    margin-bottom: 20px;
    display: block;
}

.footer-info p {
    color: var(--text-muted);
    max-width: 300px;
}

.footer-links h4 {
    margin-bottom: 25px;
    font-size: 1rem;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: var(--border);
    color: var(--text-muted);
    font-size: 0.8rem;
}

@media (max-width: 992px) {
    .split-layout { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .detail-gallery { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-wrapper .main-nav { display: none; }
    .hero h1 { font-size: 3.5rem; }
    .detail-info h1 { font-size: 2rem; }
    .detail-price { font-size: 2.5rem; }
    .footer-grid { grid-template-columns: 1fr; }
}