feat: full dark mode with :root.dark and dark: classes

layout.css
- Change .dark → :root.dark so variable overrides match Tailwind's
  :root, :host specificity and actually take effect
- Add global dark mode styles for input/select/textarea elements

All .svelte files:
- bg-white → bg-white dark:bg-gray-100 (cards, tables, containers)
- text-white → text-white dark:text-gray-950 (button text)
- Add dark:bg-gray-950 to main page containers (dashboard, account,
  license-keys, proclamations, proclamations/[id])
- Add dark:border-gray-300 to bordered elements (cards, tables, forms)
- Add dark:bg-gray-200 to secondary backgrounds (table headers,
  address form, price badges)
- Add dark:hover:bg-gray-300 / dark:hover:bg-gray-700 to hover states
  (sidebar nav links, clear button, admin categories table)

src/routes/(protected)/(user)/account/+page.svelte

@@ -23,7 +23,7 @@
 	}
 </script>
 
-<div class="flex h-full min-h-0 flex-col gap-8 p-6">
+<div class="flex h-full min-h-0 flex-col gap-8 p-6 dark:bg-gray-950">
 	<h1 class="text-2xl font-semibold text-gray-900">Account</h1>
 
 	<!-- Email (read-only) -->
@@ -93,7 +93,7 @@
 			<div>
 				<button
 					type="submit"
-					class="rounded-lg bg-blue-600 px-4 py-2 font-medium text-white transition-colors hover:bg-blue-700"
+					class="rounded-lg bg-blue-600 px-4 py-2 font-medium text-white dark:text-gray-950 transition-colors hover:bg-blue-700"
 				>
 					Save Profile
 				</button>
@@ -107,7 +107,7 @@
 			<h2 class="text-lg font-medium text-gray-900">Addresses</h2>
 			<button
 				type="button"
-				class="rounded-lg bg-green-600 px-3 py-1.5 text-sm font-medium text-white transition-colors hover:bg-green-700"
+				class="rounded-lg bg-green-600 px-3 py-1.5 text-sm font-medium text-white dark:text-gray-950 transition-colors hover:bg-green-700"
 				onclick={() => (showAddressForm = !showAddressForm)}
 			>
 				{showAddressForm ? 'Cancel' : 'Add Address'}
@@ -129,7 +129,7 @@
 			<form
 				method="POST"
 				action="?/addAddress"
-				class="mb-6 max-w-lg rounded-lg border border-gray-200 bg-gray-50 p-4"
+				class="mb-6 max-w-lg rounded-lg border border-gray-200 dark:border-gray-300 bg-gray-50 dark:bg-gray-200 p-4"
 			>
 				<div class="flex flex-col gap-3">
 					<div>
@@ -192,7 +192,7 @@
 					<div>
 						<button
 							type="submit"
-							class="rounded-lg bg-blue-600 px-4 py-2 font-medium text-white transition-colors hover:bg-blue-700"
+							class="rounded-lg bg-blue-600 px-4 py-2 font-medium text-white dark:text-gray-950 transition-colors hover:bg-blue-700"
 						>
 							Save Address
 						</button>
@@ -204,7 +204,7 @@
 		{#if data.user.profile?.addresses && data.user.profile.addresses.length > 0}
 			<div class="flex flex-col gap-3">
 				{#each data.user.profile.addresses as address}
-					<div class="rounded-lg border border-gray-200 bg-white p-4">
+					<div class="rounded-lg border border-gray-200 bg-white dark:bg-gray-100 p-4">
 						<p class="text-sm text-gray-900">{address.street}</p>
 						<p class="text-sm text-gray-600">
 							{address.city}, {address.state} {address.postalCode}

src/routes/(protected)/(user)/account/setup/+page.svelte

@@ -43,7 +43,7 @@
 </script>
 
 <Window>
-	<form method="POST" class="border shadow-lg p-6 rounded-xl">
+	<form method="POST" class="border shadow-lg p-6 rounded-xl dark:bg-gray-100 dark:border-gray-300">
         <p class="mx-auto text-center my-4 italic">Please finish setting up your profile</p>
 		{#if data.user?.image}
 			<img src={data.user?.image} class="rounded-full w-[8rem] mx-auto" alt="Profile" />

src/routes/(protected)/(user)/dashboard/+page.svelte

@@ -4,13 +4,13 @@
 	let { data }: PageProps = $props();
 </script>
 
-<div class="flex h-full min-h-0 flex-col gap-6 p-6">
+<div class="flex h-full min-h-0 flex-col gap-6 p-6 dark:bg-gray-950">
 	<h1 class="text-2xl font-semibold text-gray-900">Welcome, {data.firstName}!</h1>
 
 	<div class="grid grid-cols-1 gap-4 sm:grid-cols-3">
 		<a
 			href="/license-keys"
-			class="rounded-lg border border-gray-200 bg-white p-6 shadow-sm transition-shadow hover:shadow-md"
+			class="rounded-lg border border-gray-200 bg-white dark:bg-gray-100 p-6 shadow-sm transition-shadow hover:shadow-md"
 		>
 			<p class="text-sm font-medium text-gray-500">Active License Keys</p>
 			<p class="mt-2 text-3xl font-bold text-gray-900">{data.activeKeys}</p>
@@ -19,7 +19,7 @@
 
 		<a
 			href="/admin/proclamations"
-			class="rounded-lg border border-gray-200 bg-white p-6 shadow-sm transition-shadow hover:shadow-md"
+			class="rounded-lg border border-gray-200 bg-white dark:bg-gray-100 p-6 shadow-sm transition-shadow hover:shadow-md"
 		>
 			<p class="text-sm font-medium text-gray-500">Proclamations</p>
 			<p class="mt-2 text-3xl font-bold text-gray-900">{data.proclamationCount}</p>
@@ -28,7 +28,7 @@
 
 		<a
 			href="/account"
-			class="rounded-lg border border-gray-200 bg-white p-6 shadow-sm transition-shadow hover:shadow-md"
+			class="rounded-lg border border-gray-200 bg-white dark:bg-gray-100 p-6 shadow-sm transition-shadow hover:shadow-md"
 		>
 			<p class="text-sm font-medium text-gray-500">Account</p>
 			<p class="mt-2 text-lg font-semibold text-gray-900">Manage Profile</p>

src/routes/(protected)/(user)/license-keys/+page.svelte

@@ -4,13 +4,13 @@
 	let { data }: PageProps = $props();
 </script>
 
-<div class="flex h-full min-h-0 flex-col gap-6 p-6">
+<div class="flex h-full min-h-0 flex-col gap-6 p-6 dark:bg-gray-950">
 	<h1 class="text-2xl font-semibold text-gray-900">License Keys</h1>
 
 	{#if data.licenseKeys.length > 0}
-		<div class="overflow-x-auto rounded-lg border border-gray-200">
-			<table class="min-w-full divide-y divide-gray-200">
-				<thead class="bg-gray-50">
+		<div class="overflow-x-auto rounded-lg border border-gray-200 dark:border-gray-300">
+			<table class="min-w-full divide-y divide-gray-200 dark:divide-gray-300">
+				<thead class="bg-gray-50 dark:bg-gray-200">
 					<tr>
 						<th class="px-6 py-3 text-left text-xs font-medium uppercase tracking-wider text-gray-500">
 							Key
@@ -23,7 +23,7 @@
 						</th>
 					</tr>
 				</thead>
-				<tbody class="divide-y divide-gray-200 bg-white">
+				<tbody class="divide-y divide-gray-200 dark:divide-gray-300 bg-white dark:bg-gray-100">
 					{#each data.licenseKeys as key}
 						<tr>
 							<td class="whitespace-nowrap px-6 py-4 font-mono text-sm text-gray-900">

src/routes/(protected)/(user)/proclamations/+page.svelte

@@ -34,7 +34,7 @@
 	}
 </script>
 
-<div class="flex h-full min-h-0 flex-col gap-6 p-6">
+<div class="flex h-full min-h-0 flex-col gap-6 p-6 dark:bg-gray-950">
 	<h1 class="text-2xl font-semibold text-gray-900">Proclamations</h1>
 
 	<!-- Filters -->
@@ -66,7 +66,7 @@
 		</div>
 		<button
 			type="button"
-			class="rounded-lg bg-blue-600 px-4 py-2 font-medium text-white transition-colors hover:bg-blue-700"
+			class="rounded-lg bg-blue-600 px-4 py-2 font-medium text-white dark:text-gray-950 transition-colors hover:bg-blue-700"
 			onclick={applyFilters}
 		>
 			Search
@@ -74,7 +74,7 @@
 		{#if data.search || data.categoryId}
 			<button
 				type="button"
-				class="rounded-lg border border-gray-300 px-4 py-2 text-sm font-medium text-gray-700 transition-colors hover:bg-gray-50"
+				class="rounded-lg border border-gray-300 dark:border-gray-400 px-4 py-2 text-sm font-medium text-gray-700 transition-colors hover:bg-gray-50 dark:hover:bg-gray-300"
 				onclick={clearFilters}
 			>
 				Clear
@@ -88,7 +88,7 @@
 			{#each data.proclamations as proclamation}
 				<a
 					href="/proclamations/{proclamation.id}"
-					class="flex flex-col rounded-lg border border-gray-200 bg-white p-5 shadow-sm transition-shadow hover:shadow-md"
+					class="flex flex-col rounded-lg border border-gray-200 dark:border-gray-300 bg-white dark:bg-gray-100 p-5 shadow-sm transition-shadow hover:shadow-md"
 				>
 					<h2 class="text-lg font-medium text-gray-900">{proclamation.name}</h2>
 					<p class="mt-1 text-sm text-gray-500">{displayCategoryName(proclamation.category)}</p>

src/routes/(protected)/(user)/proclamations/[id]/+page.svelte

@@ -10,7 +10,7 @@
 	);
 </script>
 
-<div class="mx-auto flex h-full min-h-0 w-full max-w-3xl flex-col gap-6 p-6">
+<div class="mx-auto flex h-full min-h-0 w-full max-w-3xl flex-col gap-6 p-6 dark:bg-gray-950">
 	<a
 		href="/proclamations"
 		class="text-sm text-blue-600 hover:text-blue-800 hover:underline"
@@ -31,7 +31,7 @@
 				{data.proclamation.solfeggioFrequency.name}
 			</p>
 		</div>
-		<div class="rounded-lg border border-gray-200 bg-gray-50 px-4 py-2">
+		<div class="rounded-lg border border-gray-200 dark:border-gray-300 bg-gray-50 dark:bg-gray-200 px-4 py-2">
 			<p class="text-xs font-medium text-gray-500">Price</p>
 			<p class="text-sm font-semibold text-gray-900">
 				${data.proclamation.price.toFixed(2)}
@@ -39,7 +39,7 @@
 		</div>
 	</div>
 
-	<div class="prose max-w-none rounded-lg border border-gray-200 bg-white p-6">
+	<div class="prose max-w-none rounded-lg border border-gray-200 dark:border-gray-300 bg-white dark:bg-gray-100 p-6">
 		{@html data.proclamation.content}
 	</div>
 </div>

src/routes/(protected)/+layout.svelte

@@ -29,7 +29,7 @@
 				href={link.href}
 				class="rounded px-3 py-1.5 text-sm font-medium transition-colors {isActive(link.href)
 					? 'bg-blue-50 text-blue-700'
-					: 'text-gray-600 hover:bg-gray-50 hover:text-gray-900'}"
+					: 'text-gray-600 hover:bg-gray-50 hover:text-gray-900 dark:hover:bg-gray-300 dark:hover:text-gray-100'}"
 			>
 				{link.label}
 			</a>
@@ -40,7 +40,7 @@
 					href="/admin"
 					class="rounded px-3 py-1.5 text-sm font-medium transition-colors {isActive('/admin')
 						? 'bg-blue-50 text-blue-700'
-						: 'text-gray-700 hover:bg-gray-50 hover:text-gray-900'}"
+						: 'text-gray-700 hover:bg-gray-50 hover:text-gray-900 dark:hover:bg-gray-300 dark:hover:text-gray-100'}"
 				>
 					Admin Panel
 				</a>
@@ -52,7 +52,7 @@
 								'/admin/' + model.slug
 							)
 								? 'bg-blue-50 text-blue-700'
-								: 'text-blue-600 hover:bg-gray-50 hover:text-blue-800'}"
+								: 'text-blue-600 hover:bg-gray-50 hover:text-blue-800 dark:hover:bg-gray-300 dark:hover:text-gray-100'}"
 						>
 							{model.displayName}
 						</a>

src/routes/(protected)/admin/categories/+page.svelte

@@ -24,7 +24,7 @@
 	<tbody>
 		{#if data.categories}
 			{#each data.categories as category, i (category.id)}
-				<tr class="hover:bg-gray-300">
+				<tr class="hover:bg-gray-300 dark:hover:bg-gray-700">
 					<td class="hidden">{i}</td>
 					<td>{category.name}</td>
 					{#if category.parentId}