Dúvida Aula 2 - CSS não carrega

depois que eu fiz o sistema de login o sistema todo não carrega o estilo das páginas e eu não entendi o pq?Segue as páginas;;;;;

SecurityConfig.java

insira seu código aqui

<ESSA TAG ESTA DEPRECIADA, O QUE EU PONHO?>
package br.com.casadocodigo.conf;

import org.springframework.http.HttpMethod;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.annotation.web.servlet.configuration.EnableWebMvcSecurity;

@EnableWebMvcSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter{

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
        .antMatchers("/produtos/form").hasRole("ADMIN")
        .antMatchers("/carrinho/**").permitAll()
        .antMatchers(HttpMethod.POST, "/produtos").hasRole("ADMIN")
        .antMatchers(HttpMethod.GET, "/produtos").hasRole("ADMIN")
        .antMatchers("/produtos/**").permitAll()
        .antMatchers("/").permitAll()
        .anyRequest().authenticated()
        .and().formLogin();
    }
}

AppWebConfiguration.java

package br.com.casadocodigo.conf;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.guava.GuavaCacheManager;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.format.datetime.DateFormatter;
import org.springframework.format.datetime.DateFormatterRegistrar;
import org.springframework.format.support.DefaultFormattingConversionService;
import org.springframework.format.support.FormattingConversionService;
import org.springframework.web.accept.ContentNegotiationManager;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.support.StandardServletMultipartResolver;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;

import com.google.common.cache.CacheBuilder;

import br.com.casadocodigo.controller.HomeController;
import br.com.casadocodigo.daos.ProdutoDAO;
import br.com.casadocodigo.infra.FileSaver;
import br.com.casadocodigo.models.CarrinhoCompras;

@EnableWebMvc
@EnableCaching
@ComponentScan(basePackageClasses = { HomeController.class, ProdutoDAO.class, FileSaver.class, CarrinhoCompras.class })
public class AppWebConfiguration extends WebMvcConfigurerAdapter {

    @Bean
    public InternalResourceViewResolver internalResourceViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/views/");
        resolver.setSuffix(".jsp");

        resolver.setExposedContextBeanNames("carrinhoCompras");

        return resolver;
    }

    @Bean
    public MessageSource messageSource() {
        ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
        messageSource.setBasename("/WEB-INF/messages");
        messageSource.setDefaultEncoding("UTF-8");
        messageSource.setCacheSeconds(1);

        return messageSource;
    }

    @Bean
    public FormattingConversionService mvcConversionService() {
        DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
        DateFormatterRegistrar registrar = new DateFormatterRegistrar();
        registrar.setFormatter(new DateFormatter("dd/MM/yyyy"));
        registrar.registerFormatters(conversionService);

        return conversionService;
    }

    @Bean
    public MultipartResolver multipartResolver() {
        return new StandardServletMultipartResolver();
    }

    @Bean
    public RestTemplate restTemplate() {
        return new RestTemplate();
    }

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }

    @Bean
    public CacheManager cacheManager() {
        CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().maximumSize(100).expireAfterAccess(5,
                TimeUnit.MINUTES);
        GuavaCacheManager manager = new GuavaCacheManager();
        manager.setCacheBuilder(builder);
        return manager;
    }

    @Bean
    public ViewResolver contentNegotiationViewResolver(ContentNegotiationManager manager) {
        List<ViewResolver> viewResolvers = new ArrayList<>();
        viewResolvers.add(internalResourceViewResolver());
        viewResolvers.add(new JsonViewResolver());

        ContentNegotiatingViewResolver resolver = new ContentNegotiatingViewResolver();
        resolver.setViewResolvers(viewResolvers);
        resolver.setContentNegotiationManager(manager);
        return resolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

}