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src/lib/components/ui/calendar/calendar-day.svelte

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+<script lang="ts">
+	import { buttonVariants } from "$lib/components/ui/button/index.js";
+	import { cn } from "$lib/utils.js";
+	import { Calendar as CalendarPrimitive } from "bits-ui";
+
+	let {
+		ref = $bindable(null),
+		class: className,
+		...restProps
+	}: CalendarPrimitive.DayProps = $props();
+</script>
+
+<CalendarPrimitive.Day
+	bind:ref
+	class={cn(
+		buttonVariants({ variant: "ghost" }),
+		"size-(--cell-size) flex select-none flex-col items-center justify-center gap-1 whitespace-nowrap p-0 font-normal leading-none",
+		"[&[data-today]:not([data-selected])]:bg-accent [&[data-today]:not([data-selected])]:text-accent-foreground [&[data-today][data-disabled]]:text-muted-foreground",
+		"data-[selected]:bg-primary dark:data-[selected]:hover:bg-accent/50 data-[selected]:text-primary-foreground",
+		// Outside months
+		"[&[data-outside-month]:not([data-selected])]:text-muted-foreground [&[data-outside-month]:not([data-selected])]:hover:text-accent-foreground",
+		// Disabled
+		"data-[disabled]:text-muted-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+		// Unavailable
+		"data-[unavailable]:text-muted-foreground data-[unavailable]:line-through",
+		// hover
+		"dark:hover:text-accent-foreground",
+		// focus
+		"focus:border-ring focus:ring-ring/50 focus:relative",
+		// inner spans
+		"[&>span]:text-xs [&>span]:opacity-70",
+		className
+	)}
+	{...restProps}
+/>