{
	"$schema": "../schemas/code-crispies-module-schema.json",
	"id": "html-progress-meter",
	"title": "Progress & Meter Elements",
	"description": "Display completion status and scalar measurements natively",
	"mode": "html",
	"difficulty": "beginner",
	"lessons": [
		{
			"id": "progress-basic",
			"title": "Progress Bars",
			"description": "The <kbd>&lt;progress&gt;</kbd> element shows task completion. Use <kbd>value</kbd> for current progress and <kbd>max</kbd> for the total.<br><br>The text inside is fallback for older browsers.",
			"task": "Create a progress bar showing 70% completion:<br>1. Add a <kbd>&lt;label&gt;</kbd> saying 'Download:'<br>2. Add a <kbd>&lt;progress&gt;</kbd> with <kbd>value=\"70\"</kbd> and <kbd>max=\"100\"</kbd>",
			"previewHTML": "",
			"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } label { display: block; margin-bottom: 8px; font-weight: 500; } progress { width: 100%; height: 20px; border-radius: 10px; } progress::-webkit-progress-bar { background: #e0e0e0; border-radius: 10px; } progress::-webkit-progress-value { background: linear-gradient(90deg, #4caf50, #8bc34a); border-radius: 10px; } progress::-moz-progress-bar { background: linear-gradient(90deg, #4caf50, #8bc34a); border-radius: 10px; }",
			"sandboxCSS": "",
			"initialCode": "",
			"solution": "<label for=\"download\">Download:</label>\n<progress id=\"download\" value=\"70\" max=\"100\">70%</progress>",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "element_exists",
					"value": "progress",
					"message": "Add a <progress> element"
				},
				{
					"type": "attribute_value",
					"value": { "selector": "progress", "attr": "value", "value": "70" },
					"message": "Set value=\"70\" on the progress element"
				},
				{
					"type": "attribute_value",
					"value": { "selector": "progress", "attr": "max", "value": "100" },
					"message": "Set max=\"100\" on the progress element"
				},
				{
					"type": "element_exists",
					"value": "label",
					"message": "Add a <label> for the progress bar"
				}
			]
		},
		{
			"id": "progress-indeterminate",
			"title": "Indeterminate Progress",
			"description": "When progress is unknown (like loading), omit the <kbd>value</kbd> attribute. This creates an animated indeterminate state.<br><br>Useful for network requests or processes with unknown duration.",
			"task": "Create a loading indicator:<br>1. Add a <kbd>&lt;p&gt;</kbd> saying 'Loading...'<br>2. Add a <kbd>&lt;progress&gt;</kbd> without a value attribute",
			"previewHTML": "",
			"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } p { margin-bottom: 10px; color: #666; } progress { width: 100%; height: 8px; border-radius: 4px; } progress::-webkit-progress-bar { background: #e0e0e0; border-radius: 4px; }",
			"sandboxCSS": "",
			"initialCode": "",
			"solution": "<p>Loading...</p>\n<progress></progress>",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "element_exists",
					"value": "progress",
					"message": "Add a <progress> element"
				},
				{
					"type": "element_exists",
					"value": "p",
					"message": "Add a <p> with loading text"
				}
			]
		},
		{
			"id": "meter-gauge",
			"title": "Meter Gauges",
			"description": "The <kbd>&lt;meter&gt;</kbd> element displays a scalar value within a range. Use it for measurements like disk space, battery, or ratings.<br><br>Set <kbd>low</kbd>, <kbd>high</kbd>, and <kbd>optimum</kbd> to define good/bad ranges - the browser colors it accordingly!",
			"task": "Create a battery level meter:<br>1. Add a <kbd>&lt;label&gt;</kbd> saying 'Battery:'<br>2. Add a <kbd>&lt;meter&gt;</kbd> with:<br>   - <kbd>value=\"0.8\"</kbd><br>   - <kbd>min=\"0\"</kbd> and <kbd>max=\"1\"</kbd><br>   - <kbd>low=\"0.2\"</kbd> and <kbd>high=\"0.8\"</kbd><br>   - <kbd>optimum=\"1\"</kbd>",
			"previewHTML": "",
			"previewBaseCSS": "body { font-family: system-ui; padding: 20px; } label { display: block; margin-bottom: 8px; font-weight: 500; } meter { width: 100%; height: 25px; }",
			"sandboxCSS": "",
			"initialCode": "",
			"solution": "<label for=\"battery\">Battery:</label>\n<meter id=\"battery\" value=\"0.8\" min=\"0\" max=\"1\" low=\"0.2\" high=\"0.8\" optimum=\"1\">80%</meter>",
			"previewContainer": "preview-area",
			"validations": [
				{
					"type": "element_exists",
					"value": "meter",
					"message": "Add a <meter> element"
				},
				{
					"type": "attribute_value",
					"value": { "selector": "meter", "attr": "value", "value": "0.8" },
					"message": "Set value=\"0.8\" on the meter"
				},
				{
					"type": "attribute_value",
					"value": { "selector": "meter", "attr": "low", "value": "0.2" },
					"message": "Set low=\"0.2\" to define the low threshold"
				},
				{
					"type": "element_exists",
					"value": "label",
					"message": "Add a <label> for the meter"
				}
			]
		}
	]
}