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path: root/src/lib/components/Nav.svelte
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<script>
	import { page } from '$app/stores';
</script>

<nav class="navbar">
	<a href="/" data-label="Projets" class:active={$page.url.pathname === '/'}
		><span>Projets</span></a
	>
	<a
		href="/groceries"
		data-label="Liste"
		class:active={$page.url.pathname === '/groceries'}><span>Liste</span></a
	>
	<a
		href="/groceries/catalog"
		data-label="Catalogue"
		class:active={$page.url.pathname === '/groceries/catalog'}
		><span>Catalogue</span></a
	>
	<a
		href="/groceries/categories"
		data-label="Catégories"
		class:active={$page.url.pathname === '/groceries/categories'}
		><span>Catégories</span></a
	>
</nav>

<style>
	.navbar {
		display: flex;
		gap: 0.25rem;
		border-bottom: 1px solid var(--border);
		position: sticky;
		top: 0;
		background: var(--bg);
		z-index: 20;
		height: var(--nav-height);
		align-items: center;
		padding: 0 1rem;
	}

	.navbar a {
		height: 100%;
		display: inline-grid;
		align-content: center;
		padding: 0 0.625rem;
		font-size: 0.875rem;
		color: var(--text-secondary);
		text-decoration: none;
	}

	/* Bold ghost reserves the bold advance width in the same grid cell, so the
	   active tab's font-weight change never moves its siblings. */
	.navbar a::before {
		content: attr(data-label);
		grid-area: 1 / 1;
		visibility: hidden;
		font-weight: 700;
	}

	.navbar a span {
		grid-area: 1 / 1;
	}

	.navbar a:hover {
		color: var(--text);
	}

	.navbar a.active {
		color: var(--text);
	}

	.navbar a.active span {
		font-weight: 700;
	}
</style>