:root {
            --primary-color: #07196a;
            --secondary-color: #2c31ff;
            --success-color: #28a745;
            --danger-color: #dc3545;
            --warning-color: #9a9a9a;
            --dark-color: #222;
             --primary-black: #182782;
            --secondary-gray: #f3f3f3;
            --border-gray: #ccc;
            --highlight-yellow: #bdb9f2;
            --text-gray: #666;
            --price-old: #999;
        }

       
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
        }

        /* Announcement Bar */
        .announcement-bar {
            background: #000;
            color: #fff;
            text-align: center;
            padding: 10px 0;
            font-size: 14px;
        }

        .announcement-bar span {
            margin: 0 15px;
        }

        /* Header */
        .main-header {
            background: #fff;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .navbar-brand img {
            height: 50px;
        }

        .nav-link {
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-link:hover {
            color: var(--primary-color) !important;
        }

        .cart-icon {
            font-size: 28px;
            cursor: pointer;
            color: #333;
        }

        /* Timer Section */
        .timer-section {
            background: #ff6b35;
            color: #fff;
            padding: 20px;
            text-align: center;
        }

        .countdown {
            font-size: 2em;
            font-weight: bold;
            margin-top: 10px;
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: #fff;
            padding: 20px 0;
        }

        .hero h1 {
            font-size: 2.5rem;
            font-weight: bold;
            margin-bottom: 1.5rem;
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }

        .feature-icon-box {
            background: rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 10px;
            margin: 10px 0;
        }

        .feature-icon-box i {
            font-size: 2rem;
            margin-right: 10px;
        }

        /* Product Gallery */
        .main-image {
            width: 100%;
            border-radius: 10px;
            margin-bottom: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .thumbnail {
            width: 100%;
            height: 80px;
            object-fit: cover;
            border-radius: 5px;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all 0.3s;
        }

        .thumbnail:hover {
            border-color: var(--primary-color);
            transform: scale(1.05);
        }

        /* Trust Badges */
        .badge-item {
            background: #f8f9fa;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            margin-bottom: 15px;
        }

        .badge-item i {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 10px;
        }

        /* Benefits */
        .benefits-box {
            background: #f8f9fa;
            padding: 30px;
            border-radius: 10px;
        }

        .benefit-item {
            display: flex;
            align-items: start;
            gap: 15px;
            margin-bottom: 20px;
        }

        .benefit-item i {
            color: var(--primary-color);
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        /* Price Section */
        .price-box {
            background: #fff;
            border: 3px solid var(--primary-color);
            border-radius: 15px;
            padding: 40px;
            text-align: center;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .price {
            font-size: 3rem;
            color: var(--primary-color);
            font-weight: bold;
            margin-bottom: 20px;
        }

        .btn-add-cart {
            background: var(--primary-color);
            color: #fff;
            border: none;
            padding: 18px 40px;
            font-size: 1.2rem;
            border-radius: 8px;
            width: 100%;
            transition: all 0.3s;
        }

        .btn-add-cart:hover {
            background: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        /* Stock Warning */
        .stock-warning {
            background: #fff3cd;
            border: 2px solid var(--warning-color);
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            margin:  0;
        }

        /* FAQ Section */
        .accordion-button:not(.collapsed) {
            background-color: var(--primary-color);
            color: #fff;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
        }

        /* Review Cards */
        .review-card {
            background: #fff;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            height: 100%;
            transition: transform 0.3s;
        }

        .review-card:hover {
            transform: translateY(-5px);
        }

       

        .stars {
            color: var(--warning-color);
            font-size: 1.2rem;
        }

        /* Benefit Cards */
        .benefit-card {
            background: #fff;
            padding: 1rem 0.4rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            text-align: center;
            height: 100%;
            transition: all 0.3s;
        }

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

        .benefit-card i {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        /* Comparison Table */
        .comparison-table {
            background: #fff;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .comparison-table th {
            background: var(--primary-color);
            color: #fff;
            padding: 20px;
            font-size: 1.1rem;
        }

        .comparison-table td {
            padding: 20px;
            text-align: center;
            vertical-align: middle;
        }

        .check-icon {
            color: var(--success-color);
            font-size: 2rem;
        }

        .cross-icon {
            color: var(--danger-color);
            font-size: 2rem;
        }

        /* Footer */
        footer {
            background: var(--dark-color);
            color: #fff;
            padding: 60px 0 30px;
        }

        footer a {
            color: #fff;
            text-decoration: none;
            transition: color 0.3s;
        }

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

        /* WhatsApp Button */
        .whatsapp-button {
            display:none !important;
            position: fixed;
            bottom: 40px;
            left: 10px;
            background: #25d366;
            color: #fff;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            text-decoration: none;
            transition: all 0.3s;
        }

        .whatsapp-button:hover {
            transform: scale(1.1);
            background: #20ba5a;
        }

        /* Section Spacing */
        section {
            padding: 60px 0;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: bold;
            text-align: center;
            margin-bottom: 50px;
            color: var(--dark-color);
        }

        /* Newsletter */
        .newsletter-box {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            padding: 50px;
            border-radius: 15px;
            color: #fff;
            text-align: center;
        }

        .newsletter-box input {
            padding: 15px;
            border-radius: 8px;
            border: none;
            width: 100%;
            max-width: 400px;
        }

        .newsletter-box button {
            padding: 15px 40px;
            background: #fff;
            color: var(--primary-color);
            border: none;
            border-radius: 8px;
            font-weight: bold;
            margin-top: 15px;
        }

        /* Image Content Section */
        .image-content-section {
            background: #f8f9fa;
        }

        .image-content-section img {
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        /* Statistics */
        .stats-box {
            background: #fff;
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
        }

        .stats-number {
            font-size: 2.5rem;
            font-weight: bold;
            color: var(--primary-color);
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 1.8rem;
            }

            .price {
                font-size: 2rem;
            }

            .countdown {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.8rem;
            }
        }


        /* Radio Group Styling */
        .product-option {
            display: none; /* Gizli radio input */
        }

        .option-card {
            border: 1px solid var(--border-gray);
            border-radius: 8px;
            margin-bottom: 5px;
            background: #fff;
            position: relative;
            cursor: pointer;
            transition: all 0.2s ease;
            overflow: hidden;
            width: 100%;
        }

        /* Seçili olan kartın stilleri (Best Seller) */
        .option-card.best-seller {
            border: 3px solid var(--primary-black);
        }
        
        .best-seller-badge {
          
            background-color: var(--primary-black);
            color: white;
            padding: 5px 15px;
            font-size: 12px;
            font-weight: bold;
         
            z-index: 10;
        }

        /* İçerik Düzeni */
        .card-content {
            padding: 15px;
            display: flex;
            align-items: flex-start;
        }

        /* Özel Radio Düğmesi Görünümü */
        .radio-circle {
            min-width: 24px;
            height: 24px;
            border: 2px solid #aaa;
            border-radius: 50%;
            margin-right: 15px;
            margin-top: 5px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Seçili Radio Düğmesi */
        .product-option:checked + .option-card .radio-circle {
            border-color: var(--primary-black);
        }
        
        .product-option:checked + .option-card .radio-circle::after {
            content: '';
            width: 12px;
            height: 12px;
            background: var(--primary-black);
            border-radius: 50%;
        }

        /* Varsayılan olarak 3. seçeneği seçili göstermek için JS veya inline check */
        /* Bu örnekte PHP ile checked attribute ekleyeceğiz */

        .info-col {
            flex-grow: 1;
        }

        .title-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2px;
        }

        .product-title {
            font-size: 20px;
            font-weight: 900;
            color: var(--primary-black);
        }

        .unit-tag {
            background-color: var(--highlight-yellow);
            font-size: 12px;
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
            margin-left: 10px;
        }

        .current-price {
            font-size: 18px;
            font-weight: 900;
            color: var(--primary-black);
        }

        .subtitle-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            color: var(--text-gray);
        }

        .old-price {
            text-decoration: line-through;
            color: var(--price-old);
            font-weight: 500;
        }

        /* Kargo Bölümü */
        .shipping-row {
            background-color: #e5e7eb;
            padding: 10px 15px;
            font-size: 14px;
            font-weight: 700;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid #ddd;
        }

        .shipping-free-row {
            background-color: #e5e7eb;
            padding: 10px 15px;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
        }

        .shipping-detail-price {
            color: var(--price-old);
            text-decoration: line-through;
            font-weight: normal;
            font-size: 12px;
        }

        /* Hediye Satırları */
        .gift-section {
            display: flex;
            flex-direction: column;
        }

        .gift-item {
            background-color: var(--highlight-yellow);
            padding: 10px 15px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 14px;
            font-weight: 700;
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }
        
        .gift-item:last-child {
            border-bottom: none;
        }

        .gift-left {
            display: flex;
            align-items: center;
        }

        .gift-img {
            width: 30px;
            height: 30px;
            margin-right: 10px;
            border-radius: 4px;
            background: #fff;
            object-fit: contain;
            border: 1px solid #ccc;
        }

        .free-black-row {
            background-color: black;
            color: white;
            padding: 10px 15px;
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
        }

        .free-black-row img {
            width: 25px; 
            margin-right: 10px;
            filter: invert(1); /* İkonu beyaza çevir */
        }

        /* Butonlar */
        .btn-group {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .btn {
            width: 100%;
            padding: 16px;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 800;
            text-transform: uppercase;
            transition: opacity 0.2s;
        }

        .btn:hover {
            opacity: 0.9;
        }

        .btn-primary {
            background-color: var(--primary-black);
            color: white;
        }

        .btn-secondary {
            background-color: #182782;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }