/* Product Page Specific Styles */

/* Active Navigation Link */
.main-menu a.active,
.main-menu a.active::after {
    color: var(--primary-color);
    width: 100%;
}

/* Page Banner */
.page-banner {
    height: 300px;
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(0, 71, 171, 0.8) 0%, rgba(0, 71, 171, 0.4) 100%);
}

.banner-content {
    position: relative;
    z-index: 1;
    color: #fff;
    max-width: 800px;
}

.banner-content h1 {
    font-size: 3rem;
    margin-bottom: 15px;
}

.banner-content p {
    font-size: 1.2rem;
}

/* Breadcrumb */
.breadcrumb {
    background-color: var(--secondary-color);
    padding: 15px 0;
}

.breadcrumb ul {
    display: flex;
    flex-wrap: wrap;
}

.breadcrumb li {
    margin-right: 10px;
    position: relative;
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: 10px;
    color: #999;
}

.breadcrumb li:last-child {
    color: var(--primary-color);
    font-weight: 500;
}

/* Product Overview */
.product-overview {
    padding: 60px 0 30px;
}

.product-overview .section-header p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* Product Details */
.product-details {
    padding: 30px 0 80px;
}

.product-detail-item {
    display: flex;
    margin-bottom: 80px;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.product-detail-item:nth-child(even) {
    flex-direction: row-reverse;
}

.product-image {
    flex: 1;
    min-width: 40%;
    background-color: var(--secondary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 30px;
}

.product-image img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.product-info {
    flex: 1.5;
    padding: 40px;
}

.product-info h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 2rem;
}

.product-subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 20px;
}

.product-description p {
    margin-bottom: 15px;
    line-height: 1.7;
}

.product-features,
.product-specs {
    margin-top: 30px;
    margin-bottom: 30px;
}

.product-features h3,
.product-specs h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.product-features ul {
    list-style: disc;
    padding-left: 20px;
}

.product-features li {
    margin-bottom: 8px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.spec-group h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--border-color);
}

.spec-group ul {
    list-style: none;
}

.spec-group li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 15px;
}

.spec-group li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.btn {
    margin-right: 15px;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* Related Products */
.related-products {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.related-products .product-item {
    background-color: #fff;
}

.related-products .product-info {
    padding: 20px;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #003a8c;
    transform: translateY(-3px);
}

/* Module Accordion (for Software page) */
.module-accordion {
    margin-top: 20px;
}

.module-item {
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    overflow: hidden;
}

.module-header {
    background-color: #f9f9f9;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.module-header h4 {
    margin: 0;
    color: var(--primary-color);
}

.module-content {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.module-item.active .module-content {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

/* Active Related Product */
.active-related {
    border: 2px solid var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Specification Tabs */
.spec-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.spec-tabs .tab {
    padding: 12px 20px;
    cursor: pointer;
    margin-right: 5px;
    border-radius: 5px 5px 0 0;
    transition: all 0.3s ease;
}

.spec-tabs .tab:hover {
    background-color: #f5f5f5;
}

.spec-tabs .tab.active {
    background-color: var(--primary-color);
    color: #fff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Product Video */
.product-video {
    margin-top: 30px;
    margin-bottom: 30px;
}

.product-video h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.product-video video {
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

/* Product Applications */
.product-applications {
    margin-top: 30px;
    margin-bottom: 30px;
}

.product-applications h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.product-applications ul {
    list-style: disc;
    padding-left: 20px;
}

.product-applications li {
    margin-bottom: 8px;
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
    .product-detail-item,
    .product-detail-item:nth-child(even) {
        flex-direction: column;
    }
    
    .product-image {
        min-height: 300px;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .page-banner {
        height: 200px;
    }
    
    .banner-content h1 {
        font-size: 2.5rem;
    }
}

@media screen and (max-width: 768px) {
    .product-info {
        padding: 20px;
    }
    
    .banner-content h1 {
        font-size: 2rem;
    }
}