{
	"$schema": "../schemas/code-crispies-module-schema.json",
	"id": "flexbox",
	"title": "CSS Flexbox",
	"description": "Master the flexible box layout model for modern responsive designs",
	"difficulty": "intermediate",
	"lessons": [
		{
			"id": "flexbox-1",
			"title": "Flexbox Container Basics",
			"description": "Learn how to create a flex container and understand the main and cross axes.",
			"task": "Add <code>display: flex</code> to <code>.flex-container</code> to create a flexbox layout.",
			"previewHTML": "<div class='flex-container'><div class='box'>1</div><div class='box'>2</div><div class='box'>3</div></div>",
			"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .box { background: steelblue; color: white; padding: 1rem; margin: 8px; text-align: center; font-weight: bold; }",
			"sandboxCSS": ".flex-container { border: 2px dashed #aaa; padding: 1rem; }",
			"codePrefix": ".flex-container {\n  ",
			"initialCode": "",
			"codeSuffix": "\n}",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "property_value",
					"value": {
						"property": "display",
						"expected": "flex"
					},
					"message": "Set display to 'flex'"
				}
			]
		},
		{
			"id": "flexbox-2",
			"title": "Flex Direction and Wrap",
			"description": "Control the direction and wrapping of flex items within a container.",
			"task": "Add <code>flex-direction: column</code> and <code>flex-wrap: wrap</code> to <code>.flex-container</code>.",
			"previewHTML": "<div class='flex-container'><div class='box'>1</div><div class='box'>2</div><div class='box'>3</div><div class='box'>4</div><div class='box'>5</div></div>",
			"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .box { background: steelblue; color: white; padding: 1rem; margin: 8px; text-align: center; font-weight: bold; width: 3rem; height: 3rem; display: flex; align-items: center; justify-content: center; }",
			"sandboxCSS": ".flex-container { border: 2px dashed #aaa; padding: 1rem; height: 16rem; display: flex; }",
			"codePrefix": ".flex-container {\n  ",
			"initialCode": "",
			"codeSuffix": "\n}",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "contains",
					"value": "flex-direction",
					"message": "Use the 'flex-direction' property",
					"options": {
						"caseSensitive": false
					}
				},
				{
					"type": "contains",
					"value": "flex-wrap",
					"message": "Use the 'flex-wrap' property",
					"options": {
						"caseSensitive": false
					}
				},
				{
					"type": "property_value",
					"value": {
						"property": "flex-direction",
						"expected": "column"
					},
					"message": "Set the flex-direction to 'column'",
					"options": {
						"exact": true
					}
				},
				{
					"type": "property_value",
					"value": {
						"property": "flex-wrap",
						"expected": "wrap"
					},
					"message": "Set flex-wrap to 'wrap'",
					"options": {
						"exact": true
					}
				}
			]
		},
		{
			"id": "flexbox-3",
			"title": "Justify Content",
			"description": "Learn how to align flex items along the main axis of the flex container.",
			"task": "Add <code>justify-content: space-between</code> to <code>.flex-container</code> to distribute the boxes evenly.",
			"previewHTML": "<div class='flex-container'><div class='box'>1</div><div class='box'>2</div><div class='box'>3</div></div>",
			"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .box { background: steelblue; color: white; padding: 1rem; text-align: center; font-weight: bold; width: 3rem; height: 3rem; display: flex; align-items: center; justify-content: center; }",
			"sandboxCSS": ".flex-container { border: 2px dashed #aaa; padding: 1rem; display: flex; }",
			"codePrefix": ".flex-container {\n  ",
			"initialCode": "",
			"codeSuffix": "\n}",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "contains",
					"value": "justify-content",
					"message": "Use the 'justify-content' property",
					"options": {
						"caseSensitive": false
					}
				},
				{
					"type": "property_value",
					"value": {
						"property": "justify-content",
						"expected": "space-between"
					},
					"message": "Set justify-content to 'space-between'",
					"options": {
						"exact": true
					}
				}
			]
		},
		{
			"id": "flexbox-4",
			"title": "Align Items",
			"description": "Control how flex items are aligned along the cross axis of the flex container.",
			"task": "Add <code>align-items: center</code> to <code>.flex-container</code> to vertically center the boxes.",
			"previewHTML": "<div class='flex-container'><div class='box tall'>1</div><div class='box'>2</div><div class='box short'>3</div></div>",
			"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .box { background: steelblue; color: white; padding: 1rem; margin: 8px; text-align: center; font-weight: bold; width: 3rem; display: flex; justify-content: center; } .tall { height: 6rem; } .short { height: 3rem; }",
			"sandboxCSS": ".flex-container { border: 2px dashed #aaa; padding: 1rem; display: flex; height: 10rem; }",
			"codePrefix": ".flex-container {\n  ",
			"initialCode": "",
			"codeSuffix": "\n}",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "contains",
					"value": "align-items",
					"message": "Use the 'align-items' property",
					"options": {
						"caseSensitive": false
					}
				},
				{
					"type": "property_value",
					"value": {
						"property": "align-items",
						"expected": "center"
					},
					"message": "Set align-items to 'center'",
					"options": {
						"exact": true
					}
				}
			]
		},
		{
			"id": "flexbox-5",
			"title": "Flex Grow",
			"description": "The <code>flex</code> property controls how much an item grows relative to others.",
			"task": "Add <code>flex: 2</code> to <code>.box2</code> to make it grow twice as wide.",
			"previewHTML": "<div class='flex-container'><div class='box box1'>1</div><div class='box box2'>2</div><div class='box box3'>3</div></div>",
			"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .box { color: white; padding: 1rem; margin: 8px; text-align: center; font-weight: bold; display: flex; align-items: center; justify-content: center; } .box1 { background: coral; flex: 1; } .box2 { background: mediumseagreen; } .box3 { background: gold; flex: 1; }",
			"sandboxCSS": ".flex-container { border: 2px dashed #aaa; padding: 1rem; display: flex; }",
			"codePrefix": ".box2 {\n  ",
			"initialCode": "",
			"codeSuffix": "\n}",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "property_value",
					"value": {
						"property": "flex",
						"expected": "2"
					},
					"message": "Set flex to '2'"
				}
			]
		},
		{
			"id": "flexbox-6",
			"title": "Align Self",
			"description": "Use <code>align-self</code> to override alignment for a single flex item.",
			"task": "Add <code>align-self: flex-start</code> to <code>.middle</code> to move it to the top.",
			"previewHTML": "<div class='flex-container'><div class='box'>1</div><div class='box middle'>2</div><div class='box'>3</div></div>",
			"previewBaseCSS": "body { font-family: system-ui, sans-serif; padding: 1rem; } .box { background: steelblue; color: white; padding: 1rem; margin: 8px; text-align: center; font-weight: bold; width: 3rem; height: 3rem; display: flex; align-items: center; justify-content: center; } .middle { background: mediumseagreen; }",
			"sandboxCSS": ".flex-container { border: 2px dashed #aaa; padding: 1rem; display: flex; height: 12rem; align-items: center; }",
			"codePrefix": ".middle {\n  ",
			"initialCode": "",
			"codeSuffix": "\n}",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "property_value",
					"value": {
						"property": "align-self",
						"expected": "flex-start"
					},
					"message": "Set align-self to 'flex-start'"
				}
			]
		}
	]
}