module.exports = function (grunt) {

	// Project configuration.
	grunt.initConfig({
		pkg: grunt.file.readJSON('package.json'),

		postcss: {
			options: {
				processors: [
					require('pixrem')(), // add fallbacks for rem units
					require('autoprefixer')({
						browsers: 'last 2 versions'
					}), // add vendor prefixes
					require('cssnano')() // minify the result
				]
			},
			dist: {
				src: 'css/custom.css',
				dest: 'css/custom.min.css',
			}
		},

		imagemin: {
			dynamic: {
				files: [{
					expand: true,
					cwd: 'images/',
					src: ['**/*.{png,jpg,gif}'],
					dest: 'images/'
				}]
			}
		}

	});

	// Load the plugin that provides the "uglify" task.
	grunt.loadNpmTasks('grunt-postcss');
	grunt.loadNpmTasks('grunt-contrib-imagemin');

	// Default task(s).
	grunt.registerTask('default', ['postcss', 'imagemin']);

};