/* Product Detail Section */
        .product-detail-section {
            padding: 5rem 0;
            background: linear-gradient(180deg, #F8FAFC 0%, #F1F5F9 100%);
        }

        .product-detail-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
        }

        .product-detail-header {
            padding: 2.5rem;
            border-bottom: 1px solid var(--border);
            display: flex;
            gap: 2rem;
            align-items: center;
            background: linear-gradient(135deg, #FAFBFC 0%, #F1F5F9 100%);
        }

        .product-detail-image {
            width: 220px;
            min-width: 220px;
            height: 220px;
            background: white;
            border-radius: 16px;
            padding: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

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

        .product-detail-title h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 0.5rem;
        }

        .product-detail-title .badge-product {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 0.375rem 1rem;
            border-radius: 50px;
            font-size: 0.8125rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .product-detail-title p {
            color: var(--gray);
            font-size: 1rem;
            line-height: 1.7;
            margin: 0;
        }

        .product-detail-body {
            padding: 2.5rem;
        }

        .product-description {
            color: var(--gray);
            font-size: 1rem;
            line-height: 1.9;
            margin-bottom: 2.5rem;
        }

        .product-description p {
            margin-bottom: 1.25rem;
        }

        .product-description strong {
            color: var(--dark);
        }

        .product-description.rich-content h2,
        .product-description.rich-content h3,
        .product-description.rich-content h4 {
            color: var(--dark);
            margin-top: 1.75rem;
            margin-bottom: 0.75rem;
        }

        .product-description.rich-content ul,
        .product-description.rich-content ol {
            margin-bottom: 1.25rem;
            padding-left: 1.5rem;
        }

        .product-description.rich-content table {
            width: 100%;
            margin-bottom: 1.5rem;
            border-collapse: collapse;
        }

        .product-description.rich-content table td,
        .product-description.rich-content table th {
            border: 1px solid var(--border);
            padding: 0.5rem 0.75rem;
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
            margin-bottom: 2.5rem;
        }

        .feature-item {
            display: flex;
            gap: 1rem;
            padding: 1.25rem;
            background: var(--light);
            border-radius: 12px;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }

        .feature-item:hover {
            box-shadow: var(--shadow);
            border-color: rgba(14, 116, 144, 0.3);
        }

        .feature-icon {
            width: 45px;
            height: 45px;
            min-width: 45px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.125rem;
        }

        .feature-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.25rem;
        }

        .feature-content p {
            color: var(--gray);
            font-size: 0.875rem;
            line-height: 1.6;
            margin: 0;
        }

        /* Specifications Table */
        .specs-section {
            margin-bottom: 2.5rem;
        }

        .specs-section h3 {
            font-size: 1.375rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.25rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid var(--border);
            position: relative;
        }

        .specs-section h3::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 50px;
            height: 2px;
            background: var(--primary);
        }

        .specs-section .table-responsive {
            border-radius: 12px;
            border: 1px solid var(--border);
            overflow: hidden;
            background: #fff;
        }

        .specs-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
            background: #fff;
        }

        .specs-section > .specs-table {
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
        }

        .specs-table th,
        .specs-table td {
            padding: 0.875rem 1.125rem;
            font-size: 0.9375rem;
            line-height: 1.55;
            border: 1px solid var(--border);
            vertical-align: top;
        }

        .specs-table tr {
            border-bottom: none;
        }

        /* İki sütun (Fayda / Açıklama): aynı okunabilirlik, hafif vurgu */
        .specs-table td:first-child,
        .specs-table--grid tbody td.specs-table-label {
            width: 38%;
            font-weight: 600;
            color: #334155;
            background: #f8fafc;
        }

        .specs-table td:last-child,
        .specs-table--grid tbody td:not(.specs-table-label) {
            color: #334155;
            font-weight: 400;
        }

        .specs-table--grid thead th {
            background: #f1f5f9;
            color: #1e293b;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 0.75rem 1.125rem;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }

        .specs-table--grid tbody tr:nth-child(even) td:not(.specs-table-label) {
            background: #fafbfc;
        }

        /* Usage Areas */
        .usage-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.75rem;
        }

        .usage-list li {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.875rem 1rem;
            background: var(--light);
            border-radius: 8px;
            color: var(--dark);
            font-size: 0.9375rem;
            font-weight: 500;
            border: 1px solid var(--border);
        }

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

        /* Product Gallery */
        .product-gallery-section {
            margin-bottom: 2.5rem;
        }

        .product-main-image-wrap {
            position: relative;
            width: 100%;
            display: block;
        }

        .product-main-image {
            position: relative;
            width: 100%;
            aspect-ratio: 5 / 4;
            background: white;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            display: block;
            overflow: hidden;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
            line-height: 0;
        }

        .product-main-image:hover {
            box-shadow: var(--shadow-lg);
            border-color: rgba(14, 116, 144, 0.3);
        }

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

        .gallery-nav-btn--main {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border: none;
            border-radius: 50%;
            background: white;
            color: var(--primary);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease, color 0.2s ease;
            z-index: 10;
        }

        .gallery-nav-btn--main.gallery-nav-btn--prev {
            left: 0.75rem;
        }

        .gallery-nav-btn--main.gallery-nav-btn--next {
            right: 0.75rem;
        }

        .gallery-nav-btn--main:hover {
            background: var(--primary);
            color: white;
        }

        .product-thumbnails {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
            overflow-x: auto;
            padding-bottom: 0.5rem;
        }

        .product-thumbnail {
            width: 90px;
            height: 90px;
            min-width: 90px;
            background: white;
            border-radius: 10px;
            border: 2px solid var(--border);
            padding: 0.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            position: relative;
            z-index: 2;
            pointer-events: auto;
            user-select: none;
            box-sizing: border-box;
            overflow: hidden;
        }

        .product-thumbnail img {
            pointer-events: none;
            display: block;
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 6px;
        }

        .product-thumbnail:hover,
        .product-thumbnail.active {
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(14, 116, 144, 0.2);
        }

        @media (max-width: 767px) {
            .product-thumbnail {
                width: 75px;
                height: 75px;
                min-width: 75px;
            }
        }

        /* Lightbox */
        .lightbox {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.95);
            z-index: 9999;
            display: none;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .lightbox.active {
            display: flex;
            opacity: 1;
        }

        .lightbox-content {
            position: relative;
            width: 90%;
            height: 90%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .lightbox-image {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            border-radius: 8px;
        }

        .lightbox-close {
            position: absolute;
            top: -50px;
            right: 0;
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            border-radius: 50%;
            color: white;
            font-size: 1.25rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .lightbox-close:hover {
            background: var(--primary);
        }

        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 50px;
            height: 50px;
            background: rgba(255, 255, 255, 0.1);
            border: none;
            border-radius: 50%;
            color: white;
            font-size: 1.125rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .lightbox-nav:hover {
            background: var(--primary);
        }

        .lightbox-prev {
            left: -70px;
        }

        .lightbox-next {
            right: -70px;
        }

        .lightbox-counter {
            position: absolute;
            bottom: -40px;
            left: 50%;
            transform: translateX(-50%);
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9375rem;
            font-weight: 500;
        }

        /* Product CTA */
        .product-cta {
            margin-top: 2.5rem;
            padding: 2rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 16px;
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1.5rem;
        }

        .product-cta h4 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }

        .product-cta p {
            margin: 0;
            opacity: 0.9;
            font-size: 0.9375rem;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: white;
            color: var(--primary);
            padding: 0.875rem 1.75rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            white-space: nowrap;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .btn-cta:hover {
            background: var(--dark);
            color: white;
        }

        .sidebar-widget {
            background: white;
            border-radius: 16px;
            padding: 1.75rem;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            margin-bottom: 1.5rem;
        }

        .sidebar-widget h4 {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 1.25rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid var(--border);
            position: relative;
        }

        .sidebar-widget h4::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--primary);
        }

        .product-menu-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .product-menu-list li {
            margin-bottom: 0.5rem;
        }

        .product-menu-list li:last-child {
            margin-bottom: 0;
        }

        .product-menu-list a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 1rem 1.25rem;
            border-radius: 10px;
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9375rem;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }

        .product-menu-list a i {
            color: var(--primary);
            font-size: 0.875rem;
            transition: color 0.3s ease;
        }

        .product-menu-list a:hover,
        .product-menu-list a.active {
            background: var(--light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .product-menu-list a:hover i,
        .product-menu-list a.active i {
            color: var(--primary);
        }

        .product-menu-list a.active {
            background: linear-gradient(135deg, rgba(14, 116, 144, 0.08) 0%, rgba(14, 116, 144, 0.04) 100%);
        }

        .download-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .download-list li {
            margin-bottom: 0.75rem;
        }

        .download-list li:last-child {
            margin-bottom: 0;
        }

        .download-list a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.875rem 1rem;
            background: var(--light);
            border-radius: 8px;
            color: var(--dark);
            text-decoration: none;
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.3s ease;
            border: 1px solid var(--border);
        }

        .download-list a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
        }

        .download-list a i {
            color: var(--primary);
            font-size: 1rem;
            transition: color 0.3s ease;
        }

        .download-list a:hover i {
            color: white;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .hero-content h1 {
                font-size: 2.25rem;
            }
            
            .section-title {
                font-size: 2rem;
            }

            .product-detail-header {
                flex-direction: column;
                text-align: center;
            }

            .features-grid,
            .usage-list {
                grid-template-columns: 1fr;
            }

            .product-cta {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 767px) {
            .page-hero {
                height: 220px;
            }
            
            .page-hero-content h1 {
                font-size: 1.75rem;
            }

            .product-detail-header,
            .product-detail-body {
                padding: 1.5rem;
            }

            .product-detail-title h2 {
                font-size: 1.5rem;
            }

            .product-thumbnail {
                width: 75px;
                height: 75px;
                min-width: 75px;
            }

            .lightbox-content {
                width: 95%;
                height: 70%;
            }

            .lightbox-prev {
                left: 10px;
                top: auto;
                bottom: 20px;
                transform: none;
            }

            .lightbox-next {
                right: 10px;
                top: auto;
                bottom: 20px;
                transform: none;
            }

            .lightbox-close {
                top: 20px;
                right: 20px;
            }

            .specs-table td {
                padding: 0.875rem;
                font-size: 0.875rem;
            }
        }