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

:root {
    --red: #e60000;
    --red-dark: #b30000;
    --red-light: rgba(230, 0, 0, 0.1);
    --black: #000000;
    --dark: #111111;
    --dark2: #1a1a1a;
    --dark3: #222222;
    --gray: #888888;
    --gray-light: #cccccc;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--black);
    color: var(--white);
    line-height: 1.6;
}

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

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

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

.notification-bar {
    background: var(--red);
    color: var(--white);
    text-align: center;
    padding: 10px 20px;
    font-size: 0.9rem;
    position: relative;
}

.notification-bar .close-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0.8;
}

.notification-bar .close-btn:hover {
    opacity: 1;
}

.navbar {
    background: var(--dark);
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--red);
}

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

.navbar .logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar .logo-area img {
    height: 45px;
}

.navbar .logo-area .brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--gray-light);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 5px 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--red);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
}

.banner-slider .slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.banner-slider .slide.active {
    opacity: 1;
}

.banner-slider .slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-slider .slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.banner-slider .slider-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
}

.banner-slider .slider-dots .dot.active {
    background: var(--red);
}

.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.section-title span {
    color: var(--red);
}

.section-line {
    width: 60px;
    height: 3px;
    background: var(--red);
    margin: 0 auto 40px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.product-card {
    background: var(--dark2);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(230, 0, 0, 0.15);
}

.product-card .card-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--dark3);
}

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

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

.product-card .card-info {
    padding: 15px;
}

.product-card .card-category {
    font-size: 0.75rem;
    color: var(--red);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.product-card .card-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--dark2);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: 0 5px 20px rgba(230, 0, 0, 0.1);
}

.news-card .news-image {
    width: 200px;
    min-height: 150px;
    flex-shrink: 0;
    overflow: hidden;
}

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

.news-card .news-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-card .news-date {
    font-size: 0.8rem;
    color: var(--red);
    margin-bottom: 8px;
}

.news-card .news-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.news-card .news-desc {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.5;
}

.footer {
    background: var(--dark);
    border-top: 2px solid var(--red);
    padding: 40px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-brand .footer-logo {
    height: 40px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: var(--gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer h4 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: var(--white);
    letter-spacing: 1px;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 8px;
}

.footer ul li a {
    color: var(--gray);
    font-size: 0.9rem;
}

.footer ul li a:hover {
    color: var(--red);
}

.footer-bottom {
    border-top: 1px solid var(--dark3);
    padding-top: 20px;
    text-align: center;
    color: var(--gray);
    font-size: 0.85rem;
}

.page-header {
    background: linear-gradient(135deg, var(--dark2), var(--dark));
    padding: 60px 0;
    text-align: center;
    border-bottom: 2px solid var(--red);
}

.page-header h1 {
    font-size: 2.2rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.page-header h1 span {
    color: var(--red);
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
}

.category-tabs a {
    padding: 10px 30px;
    border: 1px solid var(--dark3);
    border-radius: 4px;
    color: var(--gray-light);
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
}

.category-tabs a:hover,
.category-tabs a.active {
    background: var(--red);
    border-color: var(--red);
    color: var(--white);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 40px 0;
}

.product-gallery {
    position: relative;
}

.product-gallery .main-image {
    width: 100%;
    height: 450px;
    background: var(--dark2);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 15px;
}

.product-gallery .main-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-gallery .thumb-list {
    display: flex;
    gap: 10px;
}

.product-gallery .thumb-list .thumb {
    width: 80px;
    height: 80px;
    background: var(--dark2);
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.product-gallery .thumb-list .thumb.active,
.product-gallery .thumb-list .thumb:hover {
    border-color: var(--red);
}

.product-gallery .thumb-list .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info h1 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.product-info .product-category-label {
    color: var(--red);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.product-info .product-desc {
    color: var(--gray-light);
    margin-bottom: 25px;
    line-height: 1.7;
}

.product-info .specs-table {
    width: 100%;
    margin-bottom: 25px;
}

.product-info .specs-table tr {
    border-bottom: 1px solid var(--dark3);
}

.product-info .specs-table td {
    padding: 10px 0;
    font-size: 0.9rem;
}

.product-info .specs-table td:first-child {
    color: var(--gray);
    width: 120px;
}

.contact-email-btn {
    display: inline-block;
    background: var(--red);
    color: var(--white);
    padding: 12px 35px;
    border-radius: 4px;
    font-size: 0.95rem;
    letter-spacing: 1px;
    transition: var(--transition);
}

.contact-email-btn:hover {
    background: var(--red-dark);
}

.news-list-item {
    display: flex;
    background: var(--dark2);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
    transition: var(--transition);
}

.news-list-item:hover {
    box-shadow: 0 5px 20px rgba(230, 0, 0, 0.1);
}

.news-list-item .news-image {
    width: 250px;
    min-height: 180px;
    flex-shrink: 0;
    overflow: hidden;
}

.news-list-item .news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-list-item .news-content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-list-item .news-date {
    color: var(--red);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.news-list-item .news-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.news-list-item .news-desc {
    color: var(--gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

.about-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    padding: 40px 0;
}

.about-image {
    border-radius: 8px;
    overflow: hidden;
    height: 350px;
}

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

.about-text h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.about-text p {
    color: var(--gray-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.contact-info {
    background: var(--dark2);
    border-radius: 8px;
    padding: 25px;
}

.contact-info h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--red);
}

.contact-info .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--gray-light);
    font-size: 0.9rem;
}

.contact-info .contact-item .label {
    color: var(--gray);
    min-width: 70px;
}

.view-all-btn {
    display: inline-block;
    border: 1px solid var(--red);
    color: var(--red);
    padding: 10px 30px;
    border-radius: 4px;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
    margin-top: 30px;
}

.view-all-btn:hover {
    background: var(--red);
    color: var(--white);
}

@media (max-width: 992px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .banner-slider {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 2px solid var(--red);
    }

    .nav-links.show {
        display: flex;
    }

    .mobile-toggle {
        display: flex;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .product-card .card-image {
        height: 160px;
    }

    .banner-slider {
        height: 300px;
    }

    .banner-slider .slide-title {
        font-size: 1.5rem;
    }

    .banner-slider .slide-subtitle {
        font-size: 0.9rem;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-card {
        flex-direction: column;
    }

    .news-card .news-image {
        width: 100%;
        height: 180px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .product-detail {
        grid-template-columns: 1fr;
    }

    .product-gallery .main-image {
        height: 300px;
    }

    .about-section {
        grid-template-columns: 1fr;
    }

    .news-list-item {
        flex-direction: column;
    }

    .news-list-item .news-image {
        width: 100%;
        height: 200px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .page-header h1 {
        font-size: 1.5rem;
    }

    .navbar .logo-area .brand-name {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .product-card .card-image {
        height: 130px;
    }

    .product-card .card-info {
        padding: 10px;
    }

    .product-card .card-name {
        font-size: 0.85rem;
    }

    .banner-slider {
        height: 220px;
    }

    .category-tabs {
        gap: 8px;
    }

    .category-tabs a {
        padding: 8px 18px;
        font-size: 0.8rem;
    }
}