.claude/settings.local.json

@@ -15,7 +15,8 @@
       "Bash(rg:*)",
       "Bash(pkill:*)",
       "Bash(sudo rm:*)",
-      "Bash(rm:*)"
+      "Bash(rm:*)",
+      "Bash(curl:*)"
     ]
   },
   "enableAllProjectMcpServers": false

src/BCards.Web/BCards.Web.csproj

@@ -17,6 +17,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="8.0.4" />
     <PackageReference Include="SixLabors.ImageSharp.Web" Version="3.1.0" />
     <PackageReference Include="Microsoft.AspNetCore.ResponseCaching" Version="2.2.0" />
+    <PackageReference Include="HtmlAgilityPack" Version="1.11.54" />
   </ItemGroup>
 
   <ItemGroup>

src/BCards.Web/Controllers/AdminController.cs

@@ -493,7 +493,13 @@ public class AdminController : Controller
                 Description = l.Description,
                 Icon = l.Icon,
                 Order = l.Order,
-                IsActive = l.IsActive
+                IsActive = l.IsActive,
+                Type = l.Type,
+                ProductTitle = l.ProductTitle,
+                ProductImage = l.ProductImage,
+                ProductPrice = l.ProductPrice,
+                ProductDescription = l.ProductDescription,
+                ProductDataCachedAt = l.ProductDataCachedAt
             }).ToList() ?? new List<ManageLinkViewModel>(),
             AvailableCategories = categories,
             AvailableThemes = themes.Where(t => !t.IsPremium || userPlanType.AllowsCustomThemes()).ToList(),
@@ -529,7 +535,13 @@ public class AdminController : Controller
                     Description = l.Description,
                     Icon = l.Icon,
                     IsActive = l.IsActive,
-                    Order = index
+                    Order = index,
+                    Type = l.Type,
+                    ProductTitle = l.ProductTitle,
+                    ProductImage = l.ProductImage,
+                    ProductPrice = l.ProductPrice,
+                    ProductDescription = l.ProductDescription,
+                    ProductDataCachedAt = l.ProductDataCachedAt
                 }));
         }
 
@@ -612,7 +624,13 @@ public class AdminController : Controller
                     Description = l.Description,
                     Icon = l.Icon,
                     IsActive = l.IsActive,
-                    Order = index
+                    Order = index,
+                    Type = l.Type,
+                    ProductTitle = l.ProductTitle,
+                    ProductImage = l.ProductImage,
+                    ProductPrice = l.ProductPrice,
+                    ProductDescription = l.ProductDescription,
+                    ProductDataCachedAt = l.ProductDataCachedAt
                 }));
         }
 

src/BCards.Web/Controllers/AuthController.cs

@@ -110,8 +110,26 @@ public class AuthController : Controller
     [Authorize]
     public async Task<IActionResult> Logout()
     {
+        // Identifica qual provedor foi usado
+        var authResult = await HttpContext.AuthenticateAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+        var loginProvider = authResult.Principal?.FindFirst("LoginProvider")?.Value;
+
+        // Faz logout local primeiro
         await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
+
         TempData["Success"] = "Logout realizado com sucesso";
+
+        // Se foi Microsoft, faz logout completo no provedor
+        if (loginProvider == "Microsoft")
+        {
+            return SignOut(MicrosoftAccountDefaults.AuthenticationScheme);
+        }
+        // Se foi Google, faz logout completo no provedor  
+        else if (loginProvider == "Google")
+        {
+            return SignOut(GoogleDefaults.AuthenticationScheme);
+        }
+
         return RedirectToAction("Index", "Home");
     }
 

src/BCards.Web/Controllers/ProductController.cs

@@ -0,0 +1,131 @@
+using BCards.Web.Models;
+using BCards.Web.Services;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using System.Security.Claims;
+
+namespace BCards.Web.Controllers;
+
+[Authorize]
+[ApiController]
+[Route("api/[controller]")]
+public class ProductController : ControllerBase
+{
+    private readonly IOpenGraphService _openGraphService;
+    private readonly ILogger<ProductController> _logger;
+
+    public ProductController(
+        IOpenGraphService openGraphService,
+        ILogger<ProductController> logger)
+    {
+        _openGraphService = openGraphService;
+        _logger = logger;
+    }
+
+    [HttpPost("extract")]
+    public async Task<IActionResult> ExtractProduct([FromBody] ExtractProductRequest request)
+    {
+        try 
+        {
+            if (string.IsNullOrWhiteSpace(request.Url))
+            {
+                return BadRequest(new { success = false, message = "URL é obrigatória." });
+            }
+
+            if (!Uri.TryCreate(request.Url, UriKind.Absolute, out var uri))
+            {
+                return BadRequest(new { success = false, message = "URL inválida." });
+            }
+
+            var userId = User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
+            if (string.IsNullOrEmpty(userId))
+            {
+                return Unauthorized(new { success = false, message = "Usuário não autenticado." });
+            }
+
+            // Verificar rate limiting antes de tentar extrair
+            var isRateLimited = await _openGraphService.IsRateLimitedAsync(userId);
+            if (isRateLimited)
+            {
+                return this.TooManyRequests(new { 
+                    success = false, 
+                    message = "Aguarde 1 minuto antes de extrair dados de outro produto." 
+                });
+            }
+
+            var ogData = await _openGraphService.ExtractDataAsync(request.Url, userId);
+            
+            if (!ogData.IsValid)
+            {
+                return BadRequest(new { 
+                    success = false, 
+                    message = string.IsNullOrEmpty(ogData.ErrorMessage) 
+                        ? "Não foi possível extrair dados desta página." 
+                        : ogData.ErrorMessage 
+                });
+            }
+            
+            return Ok(new { 
+                success = true,
+                title = ogData.Title,
+                description = ogData.Description,
+                image = ogData.Image,
+                price = ogData.Price,
+                currency = ogData.Currency
+            });
+        }
+        catch (InvalidOperationException ex)
+        {
+            _logger.LogWarning(ex, "Operação inválida na extração de produto para usuário {UserId}", 
+                User.FindFirst(ClaimTypes.NameIdentifier)?.Value);
+            return BadRequest(new { success = false, message = ex.Message });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Erro interno na extração de produto para usuário {UserId}", 
+                User.FindFirst(ClaimTypes.NameIdentifier)?.Value);
+            return StatusCode(500, new { 
+                success = false, 
+                message = "Erro interno do servidor. Tente novamente em alguns instantes." 
+            });
+        }
+    }
+
+    [HttpGet("cache/{urlHash}")]
+    public Task<IActionResult> GetCachedData(string urlHash)
+    {
+        try
+        {
+            // Por segurança, vamos reconstruir a URL a partir do hash (se necessário)
+            // Por agora, apenas retornamos erro se não encontrado
+            return Task.FromResult<IActionResult>(NotFound(new { success = false, message = "Cache não encontrado." }));
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Erro ao buscar cache para hash {UrlHash}", urlHash);
+            return Task.FromResult<IActionResult>(StatusCode(500, new { success = false, message = "Erro interno do servidor." }));
+        }
+    }
+}
+
+public class ExtractProductRequest
+{
+    public string Url { get; set; } = string.Empty;
+}
+
+// Custom result for 429 Too Many Requests
+public class TooManyRequestsResult : ObjectResult
+{
+    public TooManyRequestsResult(object value) : base(value)
+    {
+        StatusCode = 429;
+    }
+}
+
+public static class ControllerBaseExtensions
+{
+    public static TooManyRequestsResult TooManyRequests(this ControllerBase controller, object value)
+    {
+        return new TooManyRequestsResult(value);
+    }
+}

src/BCards.Web/Controllers/UserPageController.cs

@@ -9,15 +9,18 @@ public class UserPageController : Controller
     private readonly IUserPageService _userPageService;
     private readonly ICategoryService _categoryService;
     private readonly ISeoService _seoService;
+    private readonly IThemeService _themeService;
 
     public UserPageController(
         IUserPageService userPageService,
         ICategoryService categoryService,
-        ISeoService seoService)
+        ISeoService seoService,
+        IThemeService themeService)
     {
         _userPageService = userPageService;
         _categoryService = categoryService;
         _seoService = seoService;
+        _themeService = themeService;
     }
 
     //[Route("{category}/{slug}")]
@@ -32,6 +35,12 @@ public class UserPageController : Controller
         if (categoryObj == null)
             return NotFound();
 
+        // Ensure theme is loaded - critical fix for theme display issue
+        if (userPage.Theme?.Id == null || string.IsNullOrEmpty(userPage.Theme.PrimaryColor))
+        {
+            userPage.Theme = _themeService.GetDefaultTheme();
+        }
+
         // Generate SEO settings
         var seoSettings = _seoService.GenerateSeoSettings(userPage, categoryObj);
         
@@ -65,6 +74,12 @@ public class UserPageController : Controller
         if (categoryObj == null)
             return NotFound();
 
+        // Ensure theme is loaded for preview too
+        if (userPage.Theme?.Id == null || string.IsNullOrEmpty(userPage.Theme.PrimaryColor))
+        {
+            userPage.Theme = _themeService.GetDefaultTheme();
+        }
+
         ViewBag.Category = categoryObj;
         ViewBag.IsPreview = true;
         

src/BCards.Web/Models/LinkItem.cs

@@ -2,6 +2,12 @@ using MongoDB.Bson.Serialization.Attributes;
 
 namespace BCards.Web.Models;
 
+public enum LinkType 
+{
+    Normal = 0,    // Link comum
+    Product = 1    // Link de produto com preview
+}
+
 public class LinkItem
 {
     [BsonElement("title")]
@@ -27,4 +33,23 @@ public class LinkItem
 
     [BsonElement("createdAt")]
     public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+
+    // Campos para Link de Produto
+    [BsonElement("type")]
+    public LinkType Type { get; set; } = LinkType.Normal;
+    
+    [BsonElement("productTitle")]
+    public string ProductTitle { get; set; } = string.Empty;
+    
+    [BsonElement("productImage")]
+    public string ProductImage { get; set; } = string.Empty;
+    
+    [BsonElement("productPrice")]
+    public string ProductPrice { get; set; } = string.Empty;
+    
+    [BsonElement("productDescription")]
+    public string ProductDescription { get; set; } = string.Empty;
+    
+    [BsonElement("productDataCachedAt")]
+    public DateTime? ProductDataCachedAt { get; set; }
 }

src/BCards.Web/Models/OpenGraphCache.cs

@@ -0,0 +1,55 @@
+using MongoDB.Bson;
+using MongoDB.Bson.Serialization.Attributes;
+
+namespace BCards.Web.Models;
+
+public class OpenGraphCache 
+{
+    [BsonId]
+    [BsonRepresentation(BsonType.ObjectId)]
+    public string Id { get; set; } = string.Empty;
+
+    [BsonElement("url")]
+    public string Url { get; set; } = string.Empty;
+
+    [BsonElement("urlHash")]
+    public string UrlHash { get; set; } = string.Empty;
+
+    [BsonElement("title")]
+    public string Title { get; set; } = string.Empty;
+
+    [BsonElement("description")]
+    public string Description { get; set; } = string.Empty;
+
+    [BsonElement("image")]
+    public string Image { get; set; } = string.Empty;
+
+    [BsonElement("price")]
+    public string Price { get; set; } = string.Empty;
+
+    [BsonElement("currency")]
+    public string Currency { get; set; } = "BRL";
+
+    [BsonElement("isValid")]
+    public bool IsValid { get; set; }
+
+    [BsonElement("errorMessage")]
+    public string ErrorMessage { get; set; } = string.Empty;
+
+    [BsonElement("cachedAt")]
+    public DateTime CachedAt { get; set; } = DateTime.UtcNow;
+
+    [BsonElement("expiresAt")]
+    public DateTime ExpiresAt { get; set; } = DateTime.UtcNow.AddHours(24);
+}
+
+public class OpenGraphData 
+{
+    public string Title { get; set; } = string.Empty;
+    public string Description { get; set; } = string.Empty;
+    public string Image { get; set; } = string.Empty;
+    public string Price { get; set; } = string.Empty;
+    public string Currency { get; set; } = "BRL";
+    public bool IsValid { get; set; }
+    public string ErrorMessage { get; set; } = string.Empty;
+}

src/BCards.Web/Models/PlanLimitations.cs

@@ -24,4 +24,20 @@ public class PlanLimitations
 
     [BsonElement("planType")]
     public string PlanType { get; set; } = "free";
+
+    // Novos campos para Links de Produto
+    [BsonElement("maxProductLinks")]
+    public int MaxProductLinks { get; set; } = 0;
+
+    [BsonElement("maxOGExtractionsPerDay")]
+    public int MaxOGExtractionsPerDay { get; set; } = 0;
+
+    [BsonElement("allowProductLinks")]
+    public bool AllowProductLinks { get; set; } = false;
+
+    [BsonElement("ogExtractionsUsedToday")]
+    public int OGExtractionsUsedToday { get; set; } = 0;
+
+    [BsonElement("lastExtractionDate")]
+    public DateTime? LastExtractionDate { get; set; }
 }

src/BCards.Web/Models/PlanType.cs

@@ -91,4 +91,33 @@ public static class PlanTypeExtensions
     {
         return planType == PlanType.Trial ? 7 : 0;
     }
+
+    public static int GetMaxProductLinks(this PlanType planType)
+    {
+        return planType switch
+        {
+            PlanType.Trial => 1,        // 1 link de produto para trial
+            PlanType.Basic => 3,        // 3 links de produto 
+            PlanType.Professional => 8, // DECOY - mais caro para poucos benefícios
+            PlanType.Premium => int.MaxValue, // Ilimitado
+            _ => 0
+        };
+    }
+
+    public static int GetMaxOGExtractionsPerDay(this PlanType planType)
+    {
+        return planType switch
+        {
+            PlanType.Trial => 2,        // 2 extrações por dia no trial
+            PlanType.Basic => 5,        // 5 extrações por dia  
+            PlanType.Professional => 15, // 15 extrações por dia
+            PlanType.Premium => int.MaxValue, // Ilimitado
+            _ => 0
+        };
+    }
+
+    public static bool AllowsProductLinks(this PlanType planType)
+    {
+        return GetMaxProductLinks(planType) > 0;
+    }
 }

src/BCards.Web/Program.cs

@@ -8,6 +8,8 @@ using Microsoft.AspNetCore.Localization;
 using Microsoft.Extensions.Options;
 using MongoDB.Driver;
 using System.Globalization;
+using Stripe;
+using Microsoft.AspNetCore.Authentication.OAuth;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -69,6 +71,19 @@ builder.Services.AddAuthentication(options =>
     var msAuth = builder.Configuration.GetSection("Authentication:Microsoft");
     options.ClientId = msAuth["ClientId"] ?? "";
     options.ClientSecret = msAuth["ClientSecret"] ?? "";
+
+    // Força seleção de conta a cada login
+    options.AuthorizationEndpoint = "https://login.microsoftonline.com/common/oauth2/v2.0/authorize";
+    options.TokenEndpoint = "https://login.microsoftonline.com/common/oauth2/v2.0/token";
+
+    options.Events = new OAuthEvents
+    {
+        OnRedirectToAuthorizationEndpoint = context =>
+        {
+            context.Response.Redirect(context.RedirectUri + "&prompt=select_account");
+            return Task.CompletedTask;
+        }
+    };
 });
 
 // Localization
@@ -99,6 +114,10 @@ builder.Services.AddScoped<ISeoService, SeoService>();
 builder.Services.AddScoped<IAuthService, AuthService>();
 builder.Services.AddScoped<IPaymentService, PaymentService>();
 builder.Services.AddScoped<ICategoryService, CategoryService>();
+builder.Services.AddScoped<IOpenGraphService, OpenGraphService>();
+
+// Add HttpClient for OpenGraphService
+builder.Services.AddHttpClient<OpenGraphService>();
 
 // Background Services
 builder.Services.AddHostedService<TrialExpirationService>();

src/BCards.Web/Services/IOpenGraphService.cs

@@ -0,0 +1,10 @@
+using BCards.Web.Models;
+
+namespace BCards.Web.Services;
+
+public interface IOpenGraphService 
+{
+    Task<OpenGraphData> ExtractDataAsync(string url, string userId);
+    Task<bool> IsRateLimitedAsync(string userId);
+    Task<OpenGraphCache?> GetCachedDataAsync(string url);
+}

src/BCards.Web/Services/IThemeService.cs

@@ -8,6 +8,7 @@ public interface IThemeService
     Task<PageTheme?> GetThemeByIdAsync(string themeId);
     Task<PageTheme?> GetThemeByNameAsync(string themeName);
     Task<string> GenerateCustomCssAsync(PageTheme theme);
+    Task<string> GenerateThemeCSSAsync(PageTheme theme, UserPage page);
     Task InitializeDefaultThemesAsync();
     PageTheme GetDefaultTheme();
 }

src/BCards.Web/Services/OpenGraphService.cs

@@ -0,0 +1,299 @@
+using BCards.Web.Models;
+using BCards.Web.Utils;
+using Microsoft.Extensions.Caching.Memory;
+using MongoDB.Driver;
+using HtmlAgilityPack;
+using System.Text.RegularExpressions;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace BCards.Web.Services;
+
+public class OpenGraphService : IOpenGraphService 
+{
+    private readonly IMemoryCache _cache;
+    private readonly ILogger<OpenGraphService> _logger;
+    private readonly HttpClient _httpClient;
+    private readonly IMongoCollection<OpenGraphCache> _ogCache;
+    
+    public OpenGraphService(
+        IMemoryCache cache, 
+        ILogger<OpenGraphService> logger, 
+        HttpClient httpClient,
+        IMongoDatabase database)
+    {
+        _cache = cache;
+        _logger = logger;
+        _httpClient = httpClient;
+        _ogCache = database.GetCollection<OpenGraphCache>("openGraphCache");
+        
+        // Configure HttpClient
+        _httpClient.DefaultRequestHeaders.Clear();
+        //_httpClient.DefaultRequestHeaders.Add("User-Agent", 
+        //    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36");
+        _httpClient.DefaultRequestHeaders.Add("User-Agent",
+            "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)");
+        _httpClient.Timeout = TimeSpan.FromSeconds(10);
+    }
+
+    public async Task<OpenGraphData> ExtractDataAsync(string url, string userId)
+    {
+        // 1. Validar domínio
+        if (!AllowedDomains.IsAllowed(url))
+        {
+            _logger.LogWarning("Tentativa de extração de domínio não permitido: {Url} pelo usuário {UserId}", url, userId);
+            throw new InvalidOperationException("Domínio não permitido. Use apenas e-commerces conhecidos e seguros.");
+        }
+        
+        // 2. Verificar rate limit (1 request por minuto por usuário)
+        var rateLimitKey = $"og_rate_{userId}";
+        if (_cache.TryGetValue(rateLimitKey, out _))
+        {
+            _logger.LogWarning("Rate limit excedido para usuário {UserId}", userId);
+            throw new InvalidOperationException("Aguarde 1 minuto antes de extrair dados de outro produto.");
+        }
+        
+        // 3. Verificar cache no MongoDB
+        var urlHash = GenerateUrlHash(url);
+        var cachedData = await GetCachedDataAsync(url);
+        
+        if (cachedData != null && cachedData.ExpiresAt > DateTime.UtcNow)
+        {
+            _logger.LogInformation("Retornando dados do cache MongoDB para URL: {Url}", url);
+            return new OpenGraphData
+            {
+                Title = cachedData.Title,
+                Description = cachedData.Description,
+                Image = cachedData.Image,
+                Price = cachedData.Price,
+                Currency = cachedData.Currency,
+                IsValid = cachedData.IsValid,
+                ErrorMessage = cachedData.ErrorMessage
+            };
+        }
+        
+        // 4. Extrair dados da URL
+        var extractedData = await ExtractFromUrlAsync(url);
+        
+        // 5. Salvar no cache MongoDB
+        await SaveToCacheAsync(url, urlHash, extractedData);
+        
+        // 6. Aplicar rate limit (1 minuto)
+        _cache.Set(rateLimitKey, true, TimeSpan.FromMinutes(1));
+        
+        _logger.LogInformation("Dados extraídos com sucesso para URL: {Url}", url);
+        return extractedData;
+    }
+
+    public Task<bool> IsRateLimitedAsync(string userId)
+    {
+        var rateLimitKey = $"og_rate_{userId}";
+        return Task.FromResult(_cache.TryGetValue(rateLimitKey, out _));
+    }
+
+    public async Task<OpenGraphCache?> GetCachedDataAsync(string url)
+    {
+        var urlHash = GenerateUrlHash(url);
+        return await _ogCache
+            .Find(x => x.UrlHash == urlHash && x.ExpiresAt > DateTime.UtcNow)
+            .FirstOrDefaultAsync();
+    }
+    
+    private async Task<OpenGraphData> ExtractFromUrlAsync(string url)
+    {
+        try 
+        {
+            _logger.LogInformation("Iniciando extração de dados para URL: {Url}", url);
+
+            var response = await _httpClient.GetAsync(url);
+            response.EnsureSuccessStatusCode();
+            
+            var html = await response.Content.ReadAsStringAsync();
+            var doc = new HtmlDocument();
+            doc.LoadHtml(html);
+            
+            var title = GetMetaContent(doc, "og:title", "title") ?? GetTitleFromHTML(doc);
+            var description = GetMetaContent(doc, "og:description", "description");
+            var image = GetMetaContent(doc, "og:image");
+            var price = GetMetaContent(doc, "og:price:amount") ?? ExtractPriceFromHTML(html, doc);
+            var currency = GetMetaContent(doc, "og:price:currency") ?? "BRL";
+            
+            // Limpar e validar dados
+            title = CleanText(title);
+            description = CleanText(description);
+            price = CleanPrice(price);
+            image = ValidateImageUrl(image, url);
+            
+            var isValid = !string.IsNullOrEmpty(title);
+            
+            return new OpenGraphData 
+            {
+                Title = title,
+                Description = description,
+                Image = image,
+                Price = price,
+                Currency = currency,
+                IsValid = isValid
+            };
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "Falha ao extrair dados de {Url}", url);
+            return new OpenGraphData 
+            { 
+                IsValid = false, 
+                ErrorMessage = $"Erro ao processar a página: {ex.Message}" 
+            };
+        }
+    }
+    
+    private string? GetMetaContent(HtmlDocument doc, params string[] properties)
+    {
+        foreach (var property in properties)
+        {
+            var meta = doc.DocumentNode
+                .SelectSingleNode($"//meta[@property='{property}' or @name='{property}' or @itemprop='{property}']");
+            
+            var content = meta?.GetAttributeValue("content", null);
+            if (!string.IsNullOrWhiteSpace(content))
+                return content;
+        }
+        return null;
+    }
+    
+    private string? GetTitleFromHTML(HtmlDocument doc)
+    {
+        var titleNode = doc.DocumentNode.SelectSingleNode("//title");
+        return titleNode?.InnerText?.Trim();
+    }
+    
+    private string? ExtractPriceFromHTML(string html, HtmlDocument doc)
+    {
+        // Regex patterns para encontrar preços em diferentes formatos
+        var pricePatterns = new[]
+        {
+            @"R\$\s*[\d\.,]+",
+            @"BRL\s*[\d\.,]+",
+            @"[\$]\s*[\d\.,]+",
+            @"price[^>]*>([^<]*[\d\.,]+[^<]*)<",
+            @"valor[^>]*>([^<]*[\d\.,]+[^<]*)<",
+            @"preço[^>]*>([^<]*[\d\.,]+[^<]*)<"
+        };
+        
+        foreach (var pattern in pricePatterns)
+        {
+            var match = Regex.Match(html, pattern, RegexOptions.IgnoreCase);
+            if (match.Success)
+            {
+                return match.Value;
+            }
+        }
+        
+        // Tentar encontrar por seletores específicos
+        var priceSelectors = new[]
+        {
+            ".price", ".valor", ".preco", "[data-price]", ".price-current",
+            ".price-value", ".product-price", ".sale-price"
+        };
+        
+        foreach (var selector in priceSelectors)
+        {
+            var priceNode = doc.DocumentNode.SelectSingleNode($"//*[contains(@class, '{selector.Replace(".", "")}')]");
+            if (priceNode != null)
+            {
+                var priceText = priceNode.InnerText?.Trim();
+                if (Regex.IsMatch(priceText ?? "", @"[\d\.,]+"))
+                {
+                    return priceText;
+                }
+            }
+        }
+        
+        return null;
+    }
+    
+    private string CleanText(string? text)
+    {
+        if (string.IsNullOrWhiteSpace(text))
+            return string.Empty;
+            
+        return Regex.Replace(text.Trim(), @"\s+", " ");
+    }
+    
+    private string CleanPrice(string? price)
+    {
+        if (string.IsNullOrWhiteSpace(price))
+            return string.Empty;
+            
+        // Limpar e formatar preço
+        var cleanPrice = Regex.Replace(price, @"[^\d\.,R\$]", " ").Trim();
+        return Regex.Replace(cleanPrice, @"\s+", " ");
+    }
+    
+    private string ValidateImageUrl(string? imageUrl, string baseUrl)
+    {
+        if (string.IsNullOrWhiteSpace(imageUrl))
+            return string.Empty;
+            
+        try
+        {
+            // Se for URL relativa, converter para absoluta
+            if (imageUrl.StartsWith("/"))
+            {
+                var baseUri = new Uri(baseUrl);
+                return $"{baseUri.Scheme}://{baseUri.Host}{imageUrl}";
+            }
+            
+            // Validar se é uma URL válida
+            if (Uri.TryCreate(imageUrl, UriKind.Absolute, out var uri))
+            {
+                return uri.ToString();
+            }
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "Erro ao validar URL da imagem: {ImageUrl}", imageUrl);
+        }
+        
+        return string.Empty;
+    }
+    
+    private string GenerateUrlHash(string url)
+    {
+        using var sha256 = SHA256.Create();
+        var hashBytes = sha256.ComputeHash(Encoding.UTF8.GetBytes(url.ToLowerInvariant()));
+        return Convert.ToBase64String(hashBytes);
+    }
+    
+    private async Task SaveToCacheAsync(string url, string urlHash, OpenGraphData data)
+    {
+        try
+        {
+            var cacheItem = new OpenGraphCache
+            {
+                Url = url,
+                UrlHash = urlHash,
+                Title = data.Title,
+                Description = data.Description,
+                Image = data.Image,
+                Price = data.Price,
+                Currency = data.Currency,
+                IsValid = data.IsValid,
+                ErrorMessage = data.ErrorMessage,
+                CachedAt = DateTime.UtcNow,
+                ExpiresAt = data.IsValid ? DateTime.UtcNow.AddHours(24) : DateTime.UtcNow.AddHours(1)
+            };
+            
+            // Upsert no MongoDB
+            await _ogCache.ReplaceOneAsync(
+                x => x.UrlHash == urlHash,
+                cacheItem,
+                new ReplaceOptions { IsUpsert = true }
+            );
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Erro ao salvar cache para URL: {Url}", url);
+        }
+    }
+}

src/BCards.Web/Services/ThemeService.cs

@@ -1,5 +1,6 @@
 using BCards.Web.Models;
 using MongoDB.Driver;
+using System.Text;
 
 namespace BCards.Web.Services;
 
@@ -133,6 +134,128 @@ public class ThemeService : IThemeService
         return Task.FromResult(css);
     }
 
+    public async Task<string> GenerateThemeCSSAsync(PageTheme theme, UserPage page)
+    {
+        var css = new StringBuilder();
+        
+        // CSS base com variáveis do tema
+        css.AppendLine($":root {{");
+        css.AppendLine($"  --primary-color: {theme.PrimaryColor};");
+        css.AppendLine($"  --secondary-color: {theme.SecondaryColor};");
+        css.AppendLine($"  --background-color: {theme.BackgroundColor};");
+        css.AppendLine($"  --text-color: {theme.TextColor};");
+        css.AppendLine($"}}");
+        
+        // CSS específico por tema
+        switch (theme.Name?.ToLower())
+        {
+            case "minimalista":
+                css.AppendLine(GetMinimalistCSS());
+                break;
+            case "corporativo":
+                css.AppendLine(GetCorporateCSS());
+                break;
+            case "dark mode":
+                css.AppendLine(GetDarkCSS());
+                break;
+            case "natureza":
+                css.AppendLine(GetNatureCSS());
+                break;
+            case "vibrante":
+                css.AppendLine(GetVibrantCSS());
+                break;
+            default:
+                css.AppendLine(await GenerateCustomCssAsync(theme));
+                break;
+        }
+        
+        return css.ToString();
+    }
+
+    private string GetMinimalistCSS() => @"
+        .profile-card { 
+            background: white; 
+            box-shadow: 0 2px 10px rgba(0,0,0,0.1); 
+            border-radius: 12px;
+        }
+        .link-button { 
+            background: var(--primary-color); 
+            border-radius: 8px; 
+        }
+    ";
+
+    private string GetCorporateCSS() => @"
+        .user-page { 
+            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%); 
+        }
+        .profile-card { 
+            background: white; 
+            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
+            border: 1px solid #e2e8f0;
+        }
+        .link-button { 
+            background: var(--primary-color); 
+            border-radius: 6px;
+            font-weight: 600;
+        }
+    ";
+
+    private string GetDarkCSS() => @"
+        .user-page { 
+            background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%); 
+        }
+        .profile-card { 
+            background: rgba(255,255,255,0.1); 
+            backdrop-filter: blur(15px);
+            border: 1px solid rgba(255,255,255,0.2);
+            color: #f9fafb;
+        }
+        .link-button { 
+            background: var(--primary-color); 
+            box-shadow: 0 4px 15px rgba(0,0,0,0.3); 
+        }
+        .profile-name, .profile-bio {
+            color: #f9fafb;
+        }
+    ";
+
+    private string GetNatureCSS() => @"
+        .user-page { 
+            background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
+            background-image: url('data:image/svg+xml,<svg xmlns=""http://www.w3.org/2000/svg"" viewBox=""0 0 100 100""><defs><pattern id=""grain"" width=""100"" height=""100"" patternUnits=""userSpaceOnUse""><circle cx=""25"" cy=""25"" r=""1"" fill=""%23059669"" opacity=""0.1""/><circle cx=""75"" cy=""75"" r=""1"" fill=""%23059669"" opacity=""0.1""/></pattern></defs><rect width=""100"" height=""100"" fill=""url(%23grain)""/></svg>');
+        }
+        .profile-card { 
+            background: rgba(255,255,255,0.9); 
+            backdrop-filter: blur(10px);
+            border: 1px solid rgba(34, 197, 94, 0.2);
+        }
+        .link-button { 
+            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
+            border-radius: 25px;
+        }
+    ";
+
+    private string GetVibrantCSS() => @"
+        .user-page { 
+            background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 50%, #fecaca 100%);
+        }
+        .profile-card { 
+            background: rgba(255,255,255,0.95); 
+            box-shadow: 0 8px 32px rgba(220, 38, 38, 0.2);
+            border: 2px solid rgba(220, 38, 38, 0.1);
+        }
+        .link-button { 
+            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
+            border-radius: 30px;
+            transform: perspective(1000px) rotateX(0deg);
+            transition: all 0.3s ease;
+        }
+        .link-button:hover {
+            transform: perspective(1000px) rotateX(-5deg) translateY(-5px);
+            box-shadow: 0 15px 30px rgba(220, 38, 38, 0.3);
+        }
+    ";
+
     public async Task InitializeDefaultThemesAsync()
     {
         var existingThemes = await _themes.Find(x => x.IsActive).ToListAsync();

src/BCards.Web/Utils/AllowedDomains.cs

@@ -0,0 +1,69 @@
+namespace BCards.Web.Utils;
+
+public static class AllowedDomains 
+{
+    public static readonly HashSet<string> EcommerceWhitelist = new(StringComparer.OrdinalIgnoreCase)
+    {
+        // Principais E-commerces Brasileiros
+        "mercadolivre.com.br", "mercadolibre.com",
+        "amazon.com.br", "amazon.com",
+        "magazineluiza.com.br", "magalu.com.br",
+        "americanas.com", "submarino.com.br",
+        "extra.com.br", "pontofrio.com.br",
+        "casasbahia.com.br", "casas.com.br",
+        "shopee.com.br", "shopee.com", "s.shopee.com.br",
+        "aliexpress.com", "aliexpress.us",
+        "netshoes.com.br", "centauro.com.br",
+        "dafiti.com.br", "kanui.com.br",
+        "fastshop.com.br", "kabum.com.br",
+        "pichau.com.br", "terabyteshop.com.br",
+        
+        // Marketplaces Internacionais Seguros
+        "ebay.com", "etsy.com", "walmart.com",
+        "target.com", "bestbuy.com",
+        
+        // E-commerces de Moda
+        "zara.com", "hm.com", "gap.com",
+        "uniqlo.com", "forever21.com",
+        
+        // Livrarias e Educação
+        "saraiva.com.br", "livrariacultura.com.br",
+        "estantevirtual.com.br",
+        
+        // Casa e Decoração
+        "mobly.com.br", "tok-stok.com.br",
+        "westwing.com.br", "madeiramadeira.com.br"
+    };
+    
+    public static bool IsAllowed(string url)
+    {
+        try 
+        {
+            var uri = new Uri(url);
+            var domain = uri.Host.ToLowerInvariant();
+
+            // Remove "www." se existir
+            if (domain.StartsWith("www."))
+                domain = domain.Substring(4);
+
+            return EcommerceWhitelist.Contains(domain);
+        }
+        catch 
+        {
+            return false;
+        }
+    }
+    
+    public static string GetDomainFromUrl(string url)
+    {
+        try
+        {
+            var uri = new Uri(url);
+            return uri.Host.ToLowerInvariant().Replace("www.", "");
+        }
+        catch
+        {
+            return string.Empty;
+        }
+    }
+}

src/BCards.Web/ViewModels/ManagePageViewModel.cs

@@ -63,6 +63,22 @@ public class ManageLinkViewModel
     public string Icon { get; set; } = string.Empty;
     public int Order { get; set; } = 0;
     public bool IsActive { get; set; } = true;
+
+    // Campos para Links de Produto
+    public LinkType Type { get; set; } = LinkType.Normal;
+    
+    [StringLength(100, ErrorMessage = "Título do produto deve ter no máximo 100 caracteres")]
+    public string ProductTitle { get; set; } = string.Empty;
+    
+    public string ProductImage { get; set; } = string.Empty;
+    
+    [StringLength(50, ErrorMessage = "Preço deve ter no máximo 50 caracteres")]
+    public string ProductPrice { get; set; } = string.Empty;
+    
+    [StringLength(200, ErrorMessage = "Descrição do produto deve ter no máximo 200 caracteres")]
+    public string ProductDescription { get; set; } = string.Empty;
+    
+    public DateTime? ProductDataCachedAt { get; set; }
 }
 
 public class DashboardViewModel

src/BCards.Web/Views/Admin/ManagePage.cshtml

@@ -355,6 +355,31 @@
             </div>
             <div class="modal-body">
                 <form id="addLinkForm">
+                    <!-- Tipo de Link -->
+                    <div class="mb-3">
+                        <label class="form-label">Tipo de Link</label>
+                        <div class="d-flex gap-2">
+                            <div class="form-check flex-fill">
+                                <input class="form-check-input" type="radio" name="linkType" id="linkTypeNormal" value="Normal" checked>
+                                <label class="form-check-label w-100 p-2 border rounded" for="linkTypeNormal">
+                                    <i class="fas fa-link me-2"></i>
+                                    <strong>Link Normal</strong>
+                                    <div class="small text-muted">Link simples para sites, redes sociais, etc.</div>
+                                </label>
+                            </div>
+                            <div class="form-check flex-fill">
+                                <input class="form-check-input" type="radio" name="linkType" id="linkTypeProduct" value="Product">
+                                <label class="form-check-label w-100 p-2 border rounded" for="linkTypeProduct">
+                                    <i class="fas fa-shopping-bag me-2"></i>
+                                    <strong>Link de Produto</strong>
+                                    <div class="small text-muted">Para produtos de e-commerce com preview</div>
+                                </label>
+                            </div>
+                        </div>
+                    </div>
+
+                    <!-- Seção para Link Normal -->
+                    <div id="normalLinkSection">
                         <div class="mb-3">
                             <label for="linkTitle" class="form-label">Título do Link</label>
                             <input type="text" class="form-control" id="linkTitle" placeholder="Ex: Meu Site, Portfólio, Instagram..." required>
@@ -391,6 +416,66 @@
                                 <option value="fas fa-heart">❤️ Favorito</option>
                             </select>
                         </div>
+                    </div>
+
+                    <!-- Seção para Link de Produto -->
+                    <div id="productLinkSection" style="display: none;">
+                        <div class="mb-3">
+                            <label for="productUrl" class="form-label">URL do Produto</label>
+                            <div class="input-group">
+                                <input type="url" class="form-control" id="productUrl" placeholder="https://mercadolivre.com.br/produto...">
+                                <button type="button" class="btn btn-outline-primary" id="extractProductBtn">
+                                    <i class="fas fa-magic"></i> Extrair Dados
+                                </button>
+                            </div>
+                            <div class="form-text">
+                                <small>
+                                    <strong>Suportamos:</strong> Mercado Livre, Amazon, Magazine Luiza, Americanas, Shopee, e outros e-commerces conhecidos.
+                                </small>
+                            </div>
+                        </div>
+                        
+                        <div id="extractLoading" style="display: none;" class="text-center my-3">
+                            <div class="spinner-border text-primary" role="status">
+                                <span class="visually-hidden">Carregando...</span>
+                            </div>
+                            <p class="mt-2 text-muted">Extraindo informações do produto...</p>
+                        </div>
+                        
+                        <div class="row">
+                            <div class="col-md-8">
+                                <div class="mb-3">
+                                    <label for="productTitle" class="form-label">Título do Produto</label>
+                                    <input type="text" class="form-control" id="productTitle" maxlength="100" placeholder="Nome do produto">
+                                </div>
+                                <div class="mb-3">
+                                    <label for="productDescription" class="form-label">Descrição (Opcional)</label>
+                                    <textarea class="form-control" id="productDescription" rows="2" maxlength="200" placeholder="Breve descrição do produto"></textarea>
+                                </div>
+                                <div class="mb-3">
+                                    <label for="productPrice" class="form-label">Preço (Opcional)</label>
+                                    <input type="text" class="form-control" id="productPrice" placeholder="R$ 99,90">
+                                </div>
+                            </div>
+                            <div class="col-md-4">
+                                <label class="form-label">Imagem do Produto</label>
+                                <div class="border rounded p-3 text-center">
+                                    <img id="productImagePreview" class="img-fluid rounded" style="display: none; max-height: 120px;">
+                                    <div id="productImagePlaceholder" class="text-muted">
+                                        <i class="fas fa-image fa-2x mb-2"></i>
+                                        <p class="small mb-0">A imagem será extraída automaticamente</p>
+                                    </div>
+                                </div>
+                                <input type="hidden" id="productImage">
+                            </div>
+                        </div>
+                        
+                        <div class="alert alert-info small">
+                            <i class="fas fa-info-circle me-1"></i>
+                            <strong>Dica:</strong> Os dados serão extraídos automaticamente da página do produto. 
+                            Você pode editar manualmente se necessário.
+                        </div>
+                    </div>
                 </form>
             </div>
             <div class="modal-footer">
@@ -501,6 +586,32 @@
     transform: translateY(-1px);
     box-shadow: 0 4px 8px rgba(0,0,0,0.15);
 }
+
+/* Product Link Preview Styles */
+.product-link-preview {
+    background: rgba(25, 135, 84, 0.05);
+    border-color: rgba(25, 135, 84, 0.2);
+}
+
+.product-link-preview .card {
+    box-shadow: none;
+    background: white;
+}
+
+.product-link-preview .card-body {
+    padding: 1rem;
+}
+
+.product-link-preview .card-title {
+    font-size: 1rem;
+    font-weight: 600;
+    margin-bottom: 0.5rem;
+}
+
+.product-link-preview img {
+    border: 1px solid rgba(0, 0, 0, 0.125);
+    border-radius: 4px;
+}
 </style>
 
 @section Scripts {
@@ -534,40 +645,44 @@
             }
         });
         
-        // Save link from modal
+        // Toggle between link types
-        $(document).on('click', '#saveLinkBtn', function() {
+        $('input[name="linkType"]').on('change', function() {
-            console.log('Save button clicked');
+            const linkType = $(this).val();
+            if (linkType === 'Product') {
+                $('#normalLinkSection').hide();
+                $('#productLinkSection').show();
+            } else {
+                $('#normalLinkSection').show();
+                $('#productLinkSection').hide();
+            }
+        });
         
-            const title = $('#linkTitle').val().trim();
+        // Extract product data
-            const url = $('#linkUrl').val().trim();
+        $('#extractProductBtn').on('click', function() {
-            const description = $('#linkDescription').val().trim();
+            const url = $('#productUrl').val().trim();
-            const icon = $('#linkIcon').val();
             
-            console.log('Values:', { title, url, description, icon });
+            if (!url) {
-            
+                alert('Por favor, insira a URL do produto.');
-            if (!title || !url) {
-                alert('Por favor, preencha pelo menos o título e a URL do link.');
                 return;
             }
             
-            // Basic URL validation
             if (!url.startsWith('http://') && !url.startsWith('https://')) {
                 alert('Por favor, insira uma URL válida que comece com http:// ou https://');
                 return;
             }
             
-            addLinkInput(title, url, description, icon);
+            extractProductData(url);
+        });
 
-            // Clear modal form
+        // Save link from modal
-            $('#addLinkForm')[0].reset();
+        $(document).on('click', '#saveLinkBtn', function() {
+            const linkType = $('input[name="linkType"]:checked').val();
             
-            // Close modal using Bootstrap 5 syntax
+            if (linkType === 'Product') {
-            var modal = bootstrap.Modal.getInstance(document.getElementById('addLinkModal'));
+                saveProductLink();
-            if (modal) {
+            } else {
-                modal.hide();
+                saveNormalLink();
             }
-            
-            markStepComplete(3);
         });
         
         // Remove link functionality
@@ -663,7 +778,7 @@
         }
     }
 
-    function addLinkInput(title = '', url = '', description = '', icon = '') {
+    function addLinkInput(title = '', url = '', description = '', icon = '', linkType = 'Normal') {
         const iconHtml = icon ? `<i class="${icon} me-2"></i>` : '';
         
         const linkHtml = `
@@ -696,6 +811,7 @@
                     <input type="text" name="Links[${linkCount}].Description" class="form-control link-description" value="${description}" placeholder="Breve descrição do link" readonly>
                 </div>
                 <input type="hidden" name="Links[${linkCount}].Id" value="">
+                <input type="hidden" name="Links[${linkCount}].Type" value="${linkType}">
                 <input type="hidden" name="Links[${linkCount}].Icon" value="${icon}">
                 <input type="hidden" name="Links[${linkCount}].Order" value="${linkCount}">
                 <input type="hidden" name="Links[${linkCount}].IsActive" value="true">
@@ -712,5 +828,193 @@
             $(this).attr('data-link', index);
         });
     }
+
+    function saveNormalLink() {
+        const title = $('#linkTitle').val().trim();
+        const url = $('#linkUrl').val().trim();
+        const description = $('#linkDescription').val().trim();
+        const icon = $('#linkIcon').val();
+        
+        if (!title || !url) {
+            alert('Por favor, preencha pelo menos o título e a URL do link.');
+            return;
+        }
+        
+        if (!url.startsWith('http://') && !url.startsWith('https://')) {
+            alert('Por favor, insira uma URL válida que comece com http:// ou https://');
+            return;
+        }
+        
+        addLinkInput(title, url, description, icon, 'Normal');
+        closeModalAndReset();
+    }
+
+    function saveProductLink() {
+        const url = $('#productUrl').val().trim();
+        const title = $('#productTitle').val().trim();
+        const description = $('#productDescription').val().trim();
+        const price = $('#productPrice').val().trim();
+        const image = $('#productImage').val();
+        
+        if (!url) {
+            alert('Por favor, insira a URL do produto.');
+            return;
+        }
+        
+        if (!title) {
+            alert('Por favor, preencha o título do produto.');
+            return;
+        }
+        
+        if (!url.startsWith('http://') && !url.startsWith('https://')) {
+            alert('Por favor, insira uma URL válida que comece com http:// ou https://');
+            return;
+        }
+        
+        addProductLinkInput(title, url, description, price, image);
+        closeModalAndReset();
+    }
+
+    function extractProductData(url) {
+        $('#extractProductBtn').prop('disabled', true);
+        $('#extractLoading').show();
+        
+        $.ajax({
+            url: '/api/Product/extract',
+            type: 'POST',
+            contentType: 'application/json',
+            data: JSON.stringify({ url: url }),
+            success: function(response) {
+                if (response.success) {
+                    $('#productTitle').val(response.title || '');
+                    $('#productDescription').val(response.description || '');
+                    $('#productPrice').val(response.price || '');
+                    
+                    if (response.image) {
+                        $('#productImage').val(response.image);
+                        $('#productImagePreview').attr('src', response.image).show();
+                        $('#productImagePlaceholder').hide();
+                    }
+                    
+                    showToast('Dados extraídos com sucesso!', 'success');
+                } else {
+                    alert('Erro: ' + (response.message || 'Não foi possível extrair os dados do produto.'));
+                }
+            },
+            error: function(xhr) {
+                let errorMessage = 'Erro ao extrair dados do produto.';
+                
+                if (xhr.responseJSON && xhr.responseJSON.message) {
+                    errorMessage = xhr.responseJSON.message;
+                } else if (xhr.status === 429) {
+                    errorMessage = 'Aguarde 1 minuto antes de extrair dados de outro produto.';
+                } else if (xhr.status === 401) {
+                    errorMessage = 'Você precisa estar logado para usar esta funcionalidade.';
+                }
+                
+                alert(errorMessage);
+            },
+            complete: function() {
+                $('#extractProductBtn').prop('disabled', false);
+                $('#extractLoading').hide();
+            }
+        });
+    }
+
+    function addProductLinkInput(title, url, description, price, image) {
+        const linkHtml = `
+            <div class="link-input-group product-link-preview" data-link="${linkCount}">
+                <div class="d-flex justify-content-between align-items-center mb-2">
+                    <h6 class="mb-0">
+                        <i class="fas fa-shopping-bag me-2 text-success"></i>Link de Produto ${linkCount + 1}
+                    </h6>
+                    <button type="button" class="btn btn-sm btn-outline-danger remove-link-btn">
+                        <i class="fas fa-trash"></i>
+                    </button>
+                </div>
+                <div class="card border-success">
+                    <div class="row g-0">
+                        <div class="col-md-3">
+                            <div class="p-3 text-center">
+                                ${image ? `<img src="${image}" class="img-fluid rounded" style="max-height: 80px; max-width: 100%;" onerror="this.style.display='none'; this.parentNode.innerHTML='<i class=\\"fas fa-image text-muted\\"></i><br><small class=\\"text-muted\\">Sem imagem</small>';">` : '<i class="fas fa-image text-muted fa-2x"></i><br><small class="text-muted">Sem imagem</small>'}
+                            </div>
+                        </div>
+                        <div class="col-md-9">
+                            <div class="card-body">
+                                <h6 class="card-title text-success">${title}</h6>
+                                ${price ? `<p class="card-text"><strong class="text-success">${price}</strong></p>` : ''}
+                                ${description ? `<p class="card-text small text-muted">${description}</p>` : ''}
+                                <small class="text-muted d-block">
+                                    <i class="fas fa-external-link-alt me-1"></i>
+                                    ${url.length > 50 ? url.substring(0, 50) + '...' : url}
+                                </small>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                
+                <!-- Hidden fields for form submission -->
+                <input type="hidden" name="Links[${linkCount}].Id" value="">
+                <input type="hidden" name="Links[${linkCount}].Title" value="${title}">
+                <input type="hidden" name="Links[${linkCount}].Url" value="${url}">
+                <input type="hidden" name="Links[${linkCount}].Description" value="${description}">
+                <input type="hidden" name="Links[${linkCount}].Type" value="Product">
+                <input type="hidden" name="Links[${linkCount}].ProductTitle" value="${title}">
+                <input type="hidden" name="Links[${linkCount}].ProductDescription" value="${description}">
+                <input type="hidden" name="Links[${linkCount}].ProductPrice" value="${price}">
+                <input type="hidden" name="Links[${linkCount}].ProductImage" value="${image}">
+                <input type="hidden" name="Links[${linkCount}].Icon" value="fas fa-shopping-bag">
+                <input type="hidden" name="Links[${linkCount}].Order" value="${linkCount}">
+                <input type="hidden" name="Links[${linkCount}].IsActive" value="true">
+            </div>
+        `;
+        
+        $('#linksContainer').append(linkHtml);
+        linkCount++;
+        markStepComplete(3);
+    }
+
+    function closeModalAndReset() {
+        // Clear modal form
+        $('#addLinkForm')[0].reset();
+        $('#productImagePreview').hide();
+        $('#productImagePlaceholder').show();
+        $('#productImage').val('');
+        $('#normalLinkSection').show();
+        $('#productLinkSection').hide();
+        $('#linkTypeNormal').prop('checked', true);
+        
+        // Close modal
+        var modal = bootstrap.Modal.getInstance(document.getElementById('addLinkModal'));
+        if (modal) {
+            modal.hide();
+        }
+    }
+
+    function showToast(message, type = 'info') {
+        // Simple toast notification
+        const toastHtml = `
+            <div class="toast align-items-center text-white bg-${type === 'success' ? 'success' : 'primary'} border-0" role="alert" aria-live="assertive" aria-atomic="true">
+                <div class="d-flex">
+                    <div class="toast-body">${message}</div>
+                    <button type="button" class="btn-close btn-close-white me-2 m-auto" data-bs-dismiss="toast"></button>
+                </div>
+            </div>
+        `;
+        
+        if (!$('#toastContainer').length) {
+            $('body').append('<div id="toastContainer" class="toast-container position-fixed top-0 end-0 p-3"></div>');
+        }
+        
+        const $toast = $(toastHtml);
+        $('#toastContainer').append($toast);
+        
+        const toast = new bootstrap.Toast($toast[0]);
+        toast.show();
+        
+        setTimeout(() => {
+            $toast.remove();
+        }, 5000);
+    }
     </script>
 }

src/BCards.Web/Views/Shared/_ThemeStyles.cshtml

@@ -2,11 +2,15 @@
 @{
     var theme = Model ?? new BCards.Web.Models.PageTheme
     {
+        Name = "Padrão",
         PrimaryColor = "#2563eb",
         SecondaryColor = "#1d4ed8", 
         BackgroundColor = "#ffffff",
         TextColor = "#1f2937"
     };
+    
+    // Debug - vamos ver o que está chegando
+    // Console.WriteLine($"Theme recebido: {Model?.Name ?? "NULL"} - Primary: {Model?.PrimaryColor ?? "NULL"}");
 }
 
 :root {
@@ -78,23 +82,25 @@
     background-color: var(--primary-color);
     color: white !important;
     border: none;
-    padding: 1rem 2rem;
+    padding: 0.75rem 1.5rem;
-    border-radius: 50px;
+    border-radius: 12px;
     text-decoration: none;
     display: block;
-    margin-bottom: 1rem;
+    margin-bottom: 0.75rem;
     text-align: center;
     font-weight: 500;
     transition: all 0.3s ease;
-    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
     position: relative;
     overflow: hidden;
+    max-width: 100%;
+    font-size: 0.95rem;
 }
 
 .link-button:hover {
     background-color: var(--secondary-color);
-    transform: translateY(-2px);
+    transform: translateY(-1px);
-    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
     color: white !important;
     text-decoration: none;
 }
@@ -156,16 +162,17 @@
     }
     
     .link-button {
-        padding: 0.875rem 1.5rem;
+        padding: 0.65rem 1.25rem;
-        font-size: 0.95rem;
+        font-size: 0.9rem;
+        margin-bottom: 0.6rem;
     }
     
     .link-title {
-        font-size: 1rem;
+        font-size: 0.95rem;
     }
     
     .link-description {
-        font-size: 0.85rem;
+        font-size: 0.8rem;
     }
 }
 
@@ -186,7 +193,9 @@
     }
     
     .link-button {
-        padding: 0.75rem 1.25rem;
+        padding: 0.6rem 1rem;
+        font-size: 0.85rem;
+        margin-bottom: 0.5rem;
     }
 }
 
@@ -213,3 +222,107 @@
 .link-button:hover::before {
     left: 100%;
 }
+
+/* Product Link Card Styles */
+.product-link-card {
+    transition: transform 0.2s ease, box-shadow 0.2s ease;
+    border: 1px solid rgba(0, 0, 0, 0.125);
+    border-radius: 15px;
+    overflow: hidden;
+    background: rgba(255, 255, 255, 0.95);
+    backdrop-filter: blur(10px);
+}
+
+.product-link-card:hover {
+    transform: translateY(-3px);
+    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
+    border-color: var(--primary-color);
+}
+
+.product-image {
+    height: 120px;
+    width: 100%;
+    object-fit: cover;
+    border-radius: 15px 0 0 15px;
+}
+
+.product-title {
+    color: var(--primary-color);
+    font-weight: 600;
+    margin-bottom: 0.5rem;
+    line-height: 1.3;
+    display: -webkit-box;
+    -webkit-line-clamp: 2;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+}
+
+.product-description {
+    font-size: 0.85rem;
+    line-height: 1.4;
+    margin-bottom: 0.5rem;
+    display: -webkit-box;
+    -webkit-line-clamp: 2;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+}
+
+.product-price {
+    font-size: 1.1rem;
+    font-weight: 700;
+    color: #28a745 !important;
+}
+
+.product-link .card-body {
+    padding: 1rem;
+}
+
+/* Responsive adjustments for product cards */
+@@media (max-width: 768px) {
+    .product-image {
+        height: 100px;
+        border-radius: 15px 15px 0 0;
+    }
+    
+    .product-link-card .row {
+        flex-direction: column;
+    }
+    
+    .product-link-card .col-md-4,
+    .product-link-card .col-md-8 {
+        flex: none;
+        width: 100%;
+        max-width: 100%;
+    }
+    
+    .product-title {
+        font-size: 1rem;
+    }
+    
+    .product-description {
+        font-size: 0.8rem;
+    }
+    
+    .product-price {
+        font-size: 1rem;
+    }
+}
+
+@@media (max-width: 480px) {
+    .product-image {
+        height: 80px;
+    }
+    
+    .product-link .card-body {
+        padding: 0.75rem;
+    }
+    
+    .product-title {
+        font-size: 0.9rem;
+    }
+    
+    .product-description {
+        font-size: 0.75rem;
+        -webkit-line-clamp: 1;
+    }
+}

src/BCards.Web/Views/UserPage/Display.cshtml

@@ -8,21 +8,12 @@
     Layout = isPreview ? "_Layout" : "_UserPageLayout";
 }
 
-@if (!isPreview)
-{
 @section Styles {
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
     <style>
         @Html.Raw(await Html.PartialAsync("_ThemeStyles", Model.Theme))
     </style>
 }
-}
-else
-{
-    @section Styles {
-        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
-    }
-}
 
 <div class="user-page min-vh-100 d-flex align-items-center py-4">
     <div class="container">
@@ -58,6 +49,57 @@ else
                                 var link = Model.Links[i];
                                 if (link.IsActive)
                                 {
+                                    @if (link.Type == BCards.Web.Models.LinkType.Product)
+                                    {
+                                        <!-- Card de Produto -->
+                                        <a href="@link.Url" 
+                                           target="_blank" 
+                                           rel="noopener noreferrer"
+                                           class="text-decoration-none mb-3 d-block product-link"
+                                           data-link-index="@i"
+                                           onclick="recordClick('@Model.Id', @i)">
+                                            <div class="card product-link-card">
+                                                <div class="row g-0">
+                                                    @if (!string.IsNullOrEmpty(link.ProductImage))
+                                                    {
+                                                        <div class="col-md-4">
+                                                            <img src="@link.ProductImage" 
+                                                                 class="img-fluid product-image" 
+                                                                 alt="@(link.ProductTitle ?? link.Title)" 
+                                                                 loading="lazy"
+                                                                 onerror="this.style.display='none'">
+                                                        </div>
+                                                    }
+                                                    <div class="@(string.IsNullOrEmpty(link.ProductImage) ? "col-12" : "col-md-8")">
+                                                        <div class="card-body">
+                                                            <h6 class="card-title product-title">
+                                                                @(!string.IsNullOrEmpty(link.ProductTitle) ? link.ProductTitle : link.Title)
+                                                            </h6>
+                                                            @if (!string.IsNullOrEmpty(link.ProductDescription))
+                                                            {
+                                                                <p class="card-text small text-muted product-description">
+                                                                    @link.ProductDescription
+                                                                </p>
+                                                            }
+                                                            @if (!string.IsNullOrEmpty(link.ProductPrice))
+                                                            {
+                                                                <p class="card-text">
+                                                                    <strong class="text-success product-price">@link.ProductPrice</strong>
+                                                                </p>
+                                                            }
+                                                            <small class="text-muted">
+                                                                <i class="fas fa-external-link-alt me-1"></i>
+                                                                Ver produto
+                                                            </small>
+                                                        </div>
+                                                    </div>
+                                                </div>
+                                            </div>
+                                        </a>
+                                    }
+                                    else 
+                                    {
+                                        <!-- Link Normal -->
                                         <a href="@link.Url" 
                                            target="_blank" 
                                            rel="noopener noreferrer"
@@ -79,6 +121,7 @@ else
                                     }
                                 }
                             }
+                        }
                         else
                         {
                             <div class="text-muted">