/* Global Styles (same as index.html) */
        :root {
            /* --primary-color: #2a41e8; */
             --primary-color: #3498db;
            --secondary-color: #3d4461;
            --accent-color: #ff5a5f;
            --light-gray: #f8f9fa;
            --dark-gray: #495057;
            --white: #ffffff;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }

        body {
            font-family: 'Poppins', sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: var(--light-gray);
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

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

        ul {
            list-style: none;
        }

        .btn {
            display: inline-block;
            padding: 10px 20px;
            border-radius: 4px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-primary {
            background-color: var(--primary-color);
            color: var(--white);
            border: none;
        }

        .btn-primary:hover {
            background-color: #1d2fb8;
        }

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

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

        .btn-accent {
            background-color: var(--accent-color);
            color: var(--white);
            border: none;
        }

        .btn-accent:hover {
            background-color: #e04a4f;
        }

        /* Header Styles (same as index.html) */
        header {
            background-color: var(--white);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-color);
        }

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

        nav ul {
            display: flex;
            align-items: center;
        }

        nav ul li {
            margin-left: 25px;
        }

        nav ul li a {
            font-weight: 500;
            transition: color 0.3s ease;
        }

        nav ul li a:hover {
            color: var(--primary-color);
        }

        .auth-buttons {
            display: flex;
            align-items: center;
        }

        .auth-buttons a {
            margin-left: 15px;
        }

        .add-listing-btn {
            background-color: var(--accent-color);
            color: var(--white);
            padding: 8px 15px;
            border-radius: 4px;
            font-weight: 500;
            margin-left: 15px;
        }

        .add-listing-btn:hover {
            background-color: #e04a4f;
        }

        /* Breadcrumb Navigation */
        .breadcrumb {
            padding: 20px 0;
            font-size: 14px;
        }

        .breadcrumb a {
            color: var(--primary-color);
        }

        .breadcrumb span {
            color: var(--dark-gray);
            margin: 0 5px;
        }

        /* Product Page Styles */
        .product-page {
            padding: 30px 0 60px;
        }

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

        .product-gallery {
            position: relative;
        }

        .main-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin-bottom: 15px;
        }

        .thumbnail-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
        }

        .thumbnail {
            width: 100%;
            height: 80px;
            object-fit: cover;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .thumbnail:hover {
            opacity: 0.8;
        }

        .product-details {
            padding: 20px;
        }

        .product-title {
            font-size: 28px;
            margin-bottom: 10px;
            color: var(--secondary-color);
        }

        .product-meta {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .product-location {
            display: flex;
            align-items: center;
            margin-right: 20px;
            color: var(--dark-gray);
        }

        .product-location i {
            margin-right: 5px;
        }

        .product-views {
            color: var(--dark-gray);
        }

        .product-price {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .product-price .negotiable {
            font-size: 16px;
            color: var(--dark-gray);
            font-weight: normal;
        }

        .product-description {
            margin-bottom: 30px;
            line-height: 1.8;
        }

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

        .features-title {
            font-size: 18px;
            margin-bottom: 15px;
            color: var(--secondary-color);
        }

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

        .feature-item {
            display: flex;
            align-items: center;
        }

        .feature-item i {
            color: var(--primary-color);
            margin-right: 10px;
            width: 20px;
            text-align: center;
        }

        .seller-info {
            background-color: var(--white);
            border-radius: 8px;
            padding: 20px;
            margin-bottom: 30px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .seller-title {
            font-size: 18px;
            margin-bottom: 15px;
            color: var(--secondary-color);
        }

        .seller-details {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .seller-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 15px;
        }

        .seller-name {
            font-weight: 600;
            margin-bottom: 5px;
        }

        .seller-meta {
            font-size: 14px;
            color: var(--dark-gray);
        }

        .seller-actions {
            display: flex;
            gap: 10px;
        }

        .action-buttons {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }

        /* Related Products */
        .related-products {
            padding: 60px 0;
            background-color: var(--white);
        }

        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-title h2 {
            font-size: 32px;
            color: var(--secondary-color);
            margin-bottom: 15px;
        }

        .ads-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
        }

        .ad-card {
            background-color: var(--white);
            border-radius: 4px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .ad-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .ad-image {
            height: 180px;
            overflow: hidden;
        }

        .ad-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .ad-details {
            padding: 20px;
        }

        .ad-category {
            font-size: 12px;
            color: var(--dark-gray);
            margin-bottom: 5px;
        }

        .ad-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--secondary-color);
        }

        .ad-location {
            display: flex;
            align-items: center;
            color: var(--dark-gray);
            font-size: 14px;
            margin-bottom: 10px;
        }

        .ad-location i {
            margin-right: 5px;
        }

        .ad-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid #eee;
        }

        .ad-price {
            font-weight: 600;
            color: var(--primary-color);
        }

        .ad-price .negotiable {
            font-size: 12px;
            color: var(--dark-gray);
            font-weight: normal;
        }

        .ad-views {
            font-size: 12px;
            color: var(--dark-gray);
        }

        /* Footer (same as index.html) */
        footer {
            background-color: var(--secondary-color);
            color: var(--white);
            padding: 60px 0 0;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        .footer-column h3 {
            font-size: 18px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-column h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 2px;
            background-color: var(--accent-color);
        }

        .footer-column p {
            margin-bottom: 15px;
            color: #b5b7c0;
        }

        .footer-column ul li {
            margin-bottom: 10px;
        }

        .footer-column ul li a {
            color: #b5b7c0;
            transition: color 0.3s ease;
        }

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

        .newsletter-form {
            display: flex;
            margin-top: 20px;
        }

        .newsletter-form input {
            flex: 1;
            padding: 10px;
            border: none;
            border-radius: 4px 0 0 4px;
        }

        .newsletter-form button {
            background-color: var(--accent-color);
            color: var(--white);
            border: none;
            padding: 0 15px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
        }

        .app-download {
            display: flex;
            gap: 10px;
            margin-top: 15px;
        }

        .app-download a {
            display: inline-block;
            background-color: var(--white);
            color: var(--secondary-color);
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #b5b7c0;
            font-size: 14px;
        }

        /* Responsive Styles */
        @media (max-width: 992px) {
            .product-container {
                grid-template-columns: 1fr;
            }

            .header-container {
                flex-direction: column;
            }

            nav ul {
                margin: 15px 0;
            }

            .auth-buttons {
                margin-top: 15px;
            }
        }

        @media (max-width: 768px) {
            .section-title h2 {
                font-size: 28px;
            }

            .product-title {
                font-size: 24px;
            }

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

            .action-buttons {
                flex-direction: column;
            }

            .action-buttons .btn {
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 576px) {
            nav ul {
                flex-direction: column;
                align-items: center;
            }

            nav ul li {
                margin: 5px 0;
            }

            .auth-buttons {
                flex-direction: column;
                align-items: center;
            }

            .auth-buttons a {
                margin: 5px 0;
            }

            .add-listing-btn {
                margin: 10px 0 0;
            }

            .thumbnail-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }