:root {
            --primary-color: #6f42c1;
            --secondary-color: #f8f9fa;
            --accent-color: #ff6b6b;
            --dark-color: #343a40;
            --light-color: #ffffff;
            --gray-color: #6c757d;
            --border-radius: 12px;
            --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
            --gradient-primary: linear-gradient(135deg, #6f42c1 0%, #9c27b0 100%);
            --gradient-secondary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
            color: var(--dark-color);
            line-height: 1.6;
            min-height: 100vh;
        }

        /* Header Público */
        .public-header {
            background: var(--gradient-primary);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-public {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 40px;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 16px;
            border-radius: var(--border-radius);
        }

        .nav-link:hover {
            color: white;
            background: rgba(255, 255, 255, 0.1);
        }

        .btn-login {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            padding: 10px 20px;
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
            color: white;
        }

        /* Banner de Localização */
        .location-banner {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 10px 0;
            text-align: center;
            display: <?php echo ($user_lat && $user_lon) ? 'none' : 'block'; ?>;
        }

        .location-content {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 15px;
            flex-wrap: wrap;
            font-size: 0.9rem;
        }

        .btn-location {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 5px 10px;
            border-radius: 15px;
            font-size: 0.8rem;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .btn-location:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .search-header {
            background: var(--gradient-primary);
            color: white;
            padding: 20px 0 25px;
        }

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

        .back-button {
            color: white;
            text-decoration: none;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            margin-bottom: 15px;
            transition: var(--transition);
        }

        .back-button:hover {
            color: rgba(255, 255, 255, 0.8);
        }

        .main-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 25px 20px;
        }

        /* Filtros Mobile */
        .mobile-filters {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 18px;
            margin-bottom: 20px;
            display: none;
        }

        .filters-toggle {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            background: none;
            border: none;
            padding: 0;
            font-weight: 600;
            font-size: 1rem;
            color: var(--dark-color);
        }

        .filters-content {
            display: none;
            margin-top: 18px;
        }

        .filters-content.show {
            display: block;
        }

        /* Layout Desktop */
        .desktop-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 25px;
        }

        /* Filtros */
        .filters-sidebar {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 22px;
            height: fit-content;
            position: sticky;
            top: 20px;
        }

        .filter-section {
            margin-bottom: 22px;
            padding-bottom: 18px;
            border-bottom: 1px solid #f0f0f0;
        }

        .filter-section:last-child {
            border-bottom: none;
            margin-bottom: 0;
        }

        .filter-title {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--dark-color);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .form-control, .form-select {
            border-radius: 8px;
            border: 1px solid #e0e0e0;
            padding: 9px 14px;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.2rem rgba(111, 66, 193, 0.25);
        }

        .btn-primary {
            background: var(--gradient-primary);
            border: none;
            padding: 11px 18px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
            width: 100%;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(111, 66, 193, 0.4);
        }

        /* Filtros Ativos */
        .active-filters {
            background: #e7f3ff;
            border: 1px solid #b3d9ff;
            border-radius: 8px;
            padding: 15px;
            margin-bottom: 20px;
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }

        .filter-tag {
            background: var(--gradient-primary);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .filter-tag-remove {
            background: none;
            border: none;
            color: white;
            cursor: pointer;
            padding: 0;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
        }

        .filter-tag-remove:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        /* Resultados */
        .results-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            flex-wrap: wrap;
            gap: 15px;
        }

        .results-count {
            color: var(--gray-color);
            font-size: 0.9rem;
        }

        .results-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
        }

        .product-card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            overflow: hidden;
            position: relative;
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
            color: inherit;
            text-decoration: none;
        }

        /* Container de imagem */
        .product-image-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #f8f9fa;
            position: relative;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 12px;
        }

        .product-image {
            width: 100%;
            height: 100%;
            object-fit: contain;
            transition: var(--transition);
            max-width: 100%;
            max-height: 100%;
        }

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

        /* Botão para ampliar imagem */
        .btn-ampliar {
            position: absolute;
            top: 8px;
            left: 8px;
            background: rgba(255,255,255,0.9);
            border: none;
            border-radius: 50%;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
            z-index: 20;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
            color: #333;
            font-size: 0.8rem;
        }

        .btn-ampliar:hover {
            background: white;
            transform: scale(1.1);
            color: var(--primary-color);
        }

        .product-info {
            padding: 18px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .product-name {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--dark-color);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .product-store {
            font-size: 0.85rem;
            color: var(--gray-color);
            margin-bottom: 8px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }

        .product-price {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 4px;
        }

        .product-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid #f0f0f0;
        }

        .product-category {
            background: var(--gradient-primary);
            color: white;
            padding: 3px 10px;
            border-radius: 16px;
            font-size: 0.7rem;
            font-weight: 500;
        }

        .product-location {
            font-size: 0.75rem;
            color: var(--gray-color);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* Indicador de distância */
        .distance-indicator {
            background: var(--gradient-secondary);
            color: white;
            padding: 2px 6px;
            border-radius: 10px;
            font-size: 0.65rem;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 2px;
        }

        .distance-indicator.small {
            font-size: 0.6rem;
            padding: 2px 5px;
        }

        /* Modal para visualização de imagem */
        .image-modal {
            display: none;
            position: fixed;
            z-index: 9999;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.9);
            overflow: auto;
        }

        .modal-content {
            position: relative;
            margin: auto;
            display: block;
            width: 90%;
            max-width: 800px;
            max-height: 90vh;
            top: 50%;
            transform: translateY(-50%);
        }

        .modal-image {
            width: 100%;
            height: auto;
            max-height: 80vh;
            object-fit: contain;
        }

        .close-modal {
            position: absolute;
            top: 15px;
            right: 35px;
            color: #fff;
            font-size: 40px;
            font-weight: bold;
            cursor: pointer;
            z-index: 10000;
            transition: color 0.3s;
        }

        .close-modal:hover {
            color: #ccc;
        }

        /* Empty State */
        .empty-state {
            text-align: center;
            padding: 50px 20px;
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            grid-column: 1 / -1;
        }

        .empty-state i {
            font-size: 3.5rem;
            color: var(--gray-color);
            margin-bottom: 18px;
            opacity: 0.5;
        }

        .empty-state h3 {
            color: var(--dark-color);
            margin-bottom: 10px;
            font-size: 1.3rem;
        }

        .empty-state p {
            color: var(--gray-color);
            margin-bottom: 18px;
            font-size: 0.9rem;
        }

        /* Footer */
        .footer {
            background: var(--dark-color);
            color: white;
            padding: 50px 40px 25px;
            margin-top: 70px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 35px;
            margin-bottom: 35px;
        }

        .footer-section h3 {
            margin-bottom: 18px;
            color: white;
            font-size: 1.1rem;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: white;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
        }

        /* Responsividade */
        @media (max-width: 992px) {
            .desktop-layout {
                grid-template-columns: 1fr;
            }
            
            .filters-sidebar {
                display: none;
            }
            
            .mobile-filters {
                display: block;
            }

            .nav-public {
                padding: 0 25px;
                flex-direction: column;
                gap: 15px;
            }

            .results-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .results-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .results-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 576px) {
            .results-grid {
                grid-template-columns: 1fr;
            }
        }