show basic idea

src/lib/components/ui/progress/index.ts

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+import Root from "./progress.svelte";
+
+export {
+	Root,
+	//
+	Root as Progress,
+};

src/lib/components/ui/progress/progress.svelte

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+<script lang="ts">
+	import { Progress as ProgressPrimitive } from "bits-ui";
+	import { cn } from "$lib/utils.js";
+
+	type $$Props = ProgressPrimitive.Props;
+
+	let className: $$Props["class"] = undefined;
+	export let max: $$Props["max"] = 100;
+	export let value: $$Props["value"] = undefined;
+	export { className as class };
+</script>
+
+<ProgressPrimitive.Root
+	class={cn("bg-secondary relative h-4 w-full overflow-hidden rounded-full", className)}
+	{...$$restProps}
+>
+	<div
+		class="bg-primary h-full w-full flex-1 transition-all"
+		style={`transform: translateX(-${100 - (100 * (value ?? 0)) / (max ?? 1)}%)`}
+	></div>
+</ProgressPrimitive.Root>