feature/sitar-fractions-upgrade

frontend/src/lib/api/dashboard/a76/sitar.ts

@@ -39,16 +39,81 @@ export interface SitarALADI {
 }
 
 export async function getSitarTLCS(filters: { fraccion: string; nico?: string }): Promise<ApiResponse<SitarTLCS[]>> {
-    const queryParams = new URLSearchParams(filters);
-    return await api.get(`/v1/sitar/tlcs/?${queryParams.toString()}`);
+	const queryParams = new URLSearchParams(
+		Object.entries(filters).reduce(
+			(acc, [key, value]) => {
+				if (value !== undefined && value !== null && String(value).trim() !== '') {
+					acc[key] = String(value);
+				}
+				return acc;
+			},
+			{} as Record<string, string>
+		)
+	);
+	return await api.get(`/v1/sitar/tlcs/?${queryParams.toString()}`);
 }
 
 export async function getSitarPROSEC(filters: { fraccion: string; nico?: string }): Promise<ApiResponse<SitarPROSEC[]>> {
-    const queryParams = new URLSearchParams(filters);
-    return await api.get(`/v1/sitar/prosec/?${queryParams.toString()}`);
+	const queryParams = new URLSearchParams(
+		Object.entries(filters).reduce(
+			(acc, [key, value]) => {
+				if (value !== undefined && value !== null && String(value).trim() !== '') {
+					acc[key] = String(value);
+				}
+				return acc;
+			},
+			{} as Record<string, string>
+		)
+	);
+	return await api.get(`/v1/sitar/prosec/?${queryParams.toString()}`);
 }
 
 export async function getSitarALADI(filters: { fraccion: string; nico?: string }): Promise<ApiResponse<SitarALADI[]>> {
-    const queryParams = new URLSearchParams(filters);
-    return await api.get(`/v1/sitar/aladi2/?${queryParams.toString()}`);
+	const queryParams = new URLSearchParams(
+		Object.entries(filters).reduce(
+			(acc, [key, value]) => {
+				if (value !== undefined && value !== null && String(value).trim() !== '') {
+					acc[key] = String(value);
+				}
+				return acc;
+			},
+			{} as Record<string, string>
+		)
+	);
+	return await api.get(`/v1/sitar/aladi2/?${queryParams.toString()}`);
+}
+
+export type SitarGenericRecord = Record<string, string | number | boolean | null>;
+
+export type SitarDatasetEndpoint =
+	| 'reit'
+	| 'requisito-previo'
+	| 'informacion-general'
+	| 'regulaciones'
+	| 'fundamentos-tlc'
+	| 'cuotas2'
+	| 'cupos'
+	| 'noms'
+	| 'precios-estimados'
+	| 'ieps'
+	| 'rcg2'
+	| 'vehiculos-marcas'
+	| 'vehiculos-modelos';
+
+export async function getSitarDataset(
+	endpoint: SitarDatasetEndpoint,
+	filters: { fraccion: string; nico?: string; [key: string]: string | undefined }
+): Promise<ApiResponse<SitarGenericRecord[]>> {
+	const queryParams = new URLSearchParams(
+		Object.entries(filters).reduce(
+			(acc, [key, value]) => {
+				if (value !== undefined && value !== null && String(value).trim() !== '') {
+					acc[key] = String(value);
+				}
+				return acc;
+			},
+			{} as Record<string, string>
+		)
+	);
+	return await api.get(`/v1/sitar/${endpoint}/?${queryParams.toString()}`);
 }

frontend/src/lib/components/dashboard/goods/classes/forms/FixedAssetClassForm.svelte

@@ -1041,8 +1041,8 @@
 					<table class="w-full">
 						<thead class="border-b bg-white text-gray-900 dark:bg-black dark:text-white">
 							<tr>
-								<th class="px-4 py-2 text-left font-semibold whitespace-nowrap">Código</th>
-								<th class="px-4 py-2 text-left font-semibold whitespace-nowrap">Prefijo</th>
+								<th class="px-4 py-2 text-left font-semibold whitespace-nowrap">Clave</th>
+								<th class="px-4 py-2 text-left font-semibold whitespace-nowrap">Fracción</th>
 								<th class="px-4 py-2 text-left font-semibold whitespace-nowrap">Ad valorem</th>
 								<th class="px-4 py-2 text-left font-semibold whitespace-nowrap">Costo Fijo</th>
 								<th class="px-4 py-2 text-left font-semibold whitespace-nowrap">Descripción</th>
@@ -1054,8 +1054,8 @@
 									class="cursor-pointer border-b transition-colors hover:bg-gray-100 dark:hover:bg-gray-700"
 									onclick={() => selectUSFraction(fraction)}
 								>
-									<td class="px-4 py-2 whitespace-nowrap">{fraction.fraction || fraction.code}</td>
 									<td class="px-4 py-2 whitespace-nowrap">{fraction.code || '—'}</td>
+									<td class="px-4 py-2 whitespace-nowrap">{fraction.fraction || '—'}</td>
 									<td class="px-4 py-2 whitespace-nowrap">{fraction.adv_impo ?? '—'}</td>
 									<td class="px-4 py-2 whitespace-nowrap">{fraction.adv_expo ?? '—'}</td>
 									<td class="px-4 py-2">{fraction.description || ''}</td>

frontend/src/lib/components/dashboard/goods/fractions/SitarFractionTabs.svelte

@@ -0,0 +1,408 @@
+<script lang="ts">
+	import * as Tabs from '$lib/components/ui/tabs';
+	import { ClipboardList, FileText, Globe, Layers, ShieldCheck } from 'lucide-svelte';
+	import type { TariffFraction } from '$lib/api/dashboard/a76/general_catalogs/tariff-fractions';
+	import {
+		getSitarALADI,
+		getSitarPROSEC,
+		getSitarTLCS,
+		getSitarDataset,
+		type SitarALADI,
+		type SitarPROSEC,
+		type SitarTLCS,
+		type SitarGenericRecord
+	} from '$lib/api/dashboard/a76/sitar';
+	import {
+		buildMexTariffDigitsFromCatalogRow,
+		formatMexTariffDigitsForDisplay,
+		splitMexTariffDigitsForSitar
+	} from '$lib/utils/mexican-tariff-fraction';
+
+	type TabKey = 'descripcion' | 'tlcs' | 'prosec' | 'aladi' | 'immex' | 'acuerdos';
+	type NonDescTabKey = Exclude<TabKey, 'descripcion'>;
+
+	let { selectedFraction }: { selectedFraction: TariffFraction | null } = $props();
+
+	let activeTab = $state<TabKey>('descripcion');
+	let isResolvingTabs = $state(false);
+
+	let tlcsCache = $state<Record<string, SitarTLCS[]>>({});
+	let prosecCache = $state<Record<string, SitarPROSEC[]>>({});
+	let aladiCache = $state<Record<string, SitarALADI[]>>({});
+	let immexCache = $state<Record<string, SitarGenericRecord[]>>({});
+	let acuerdosCache = $state<Record<string, SitarGenericRecord[]>>({});
+
+	let sitarTLCSData = $state<SitarTLCS[]>([]);
+	let sitarPROSECData = $state<SitarPROSEC[]>([]);
+	let sitarALADIData = $state<SitarALADI[]>([]);
+	let sitarIMMEXData = $state<SitarGenericRecord[]>([]);
+	let sitarAcuerdosData = $state<SitarGenericRecord[]>([]);
+	let activeError = $state('');
+
+	// All non-description tabs start blocked; resolveTabAvailability updates them after selection.
+	let noDataTabs = $state<Record<TabKey, boolean>>({
+		descripcion: false,
+		tlcs: true,
+		prosec: true,
+		aladi: true,
+		immex: true,
+		acuerdos: true
+	});
+
+	// Monotonically incrementing token to discard stale async responses on rapid row changes.
+	let resolveToken = 0;
+
+	const fractionDigits = $derived(
+		selectedFraction ? splitMexTariffDigitsForSitar(buildMexTariffDigitsFromCatalogRow(selectedFraction)) : null
+	);
+
+	const hasSelection = $derived(!!selectedFraction);
+
+	const headerFraction = $derived(
+		selectedFraction && fractionDigits
+			? formatMexTariffDigitsForDisplay(buildMexTariffDigitsFromCatalogRow(selectedFraction))
+			: ''
+	);
+
+	function buildCacheKey(
+		fracDigits: NonNullable<typeof fractionDigits>,
+		frac: TariffFraction,
+		tab: NonDescTabKey
+	): string {
+		return `${fracDigits.fraccion8}:${frac.nico || fracDigits.nico2 || ''}:${tab}`;
+	}
+
+	// Hydrates display state from cache when the user navigates to a tab.
+	// By the time a tab is enabled, its data is already in cache from resolveTabAvailability.
+	function hydrateTabFromCache(tab: NonDescTabKey) {
+		if (!fractionDigits || !selectedFraction) return;
+		const key = buildCacheKey(fractionDigits, selectedFraction, tab);
+		if (tab === 'tlcs') sitarTLCSData = tlcsCache[key] ?? [];
+		else if (tab === 'prosec') sitarPROSECData = prosecCache[key] ?? [];
+		else if (tab === 'aladi') sitarALADIData = aladiCache[key] ?? [];
+		else if (tab === 'immex') sitarIMMEXData = immexCache[key] ?? [];
+		else if (tab === 'acuerdos') sitarAcuerdosData = acuerdosCache[key] ?? [];
+	}
+
+	// Fires all 5 tab queries in parallel after a fraction is selected, updates noDataTabs
+	// and populates caches so tab navigation is instant and never re-queries.
+	async function resolveTabAvailability(
+		token: number,
+		fracDigits: NonNullable<typeof fractionDigits>,
+		frac: TariffFraction
+	) {
+		const filters = { fraccion: fracDigits.fraccion8 };
+
+		const [tlcsRes, prosecRes, aladiRes, immexRes, acuerdosRes] = await Promise.allSettled([
+			getSitarTLCS(filters),
+			getSitarPROSEC(filters),
+			getSitarALADI(filters),
+			getSitarDataset('reit', filters),
+			getSitarDataset('requisito-previo', filters)
+		]);
+
+		// Discard results if the fraction changed while waiting
+		if (resolveToken !== token) return;
+
+		const tlcsRows = tlcsRes.status === 'fulfilled' ? ((tlcsRes.value.data ?? []) as SitarTLCS[]) : [];
+		const prosecRows = prosecRes.status === 'fulfilled' ? ((prosecRes.value.data ?? []) as SitarPROSEC[]) : [];
+		const aladiRows = aladiRes.status === 'fulfilled' ? ((aladiRes.value.data ?? []) as SitarALADI[]) : [];
+		const immexRows = immexRes.status === 'fulfilled' ? (immexRes.value.data ?? []) : [];
+		const acuerdosRows = acuerdosRes.status === 'fulfilled' ? (acuerdosRes.value.data ?? []) : [];
+
+		tlcsCache = { ...tlcsCache, [buildCacheKey(fracDigits, frac, 'tlcs')]: tlcsRows };
+		prosecCache = { ...prosecCache, [buildCacheKey(fracDigits, frac, 'prosec')]: prosecRows };
+		aladiCache = { ...aladiCache, [buildCacheKey(fracDigits, frac, 'aladi')]: aladiRows };
+		immexCache = { ...immexCache, [buildCacheKey(fracDigits, frac, 'immex')]: immexRows };
+		acuerdosCache = { ...acuerdosCache, [buildCacheKey(fracDigits, frac, 'acuerdos')]: acuerdosRows };
+
+		noDataTabs = {
+			descripcion: false,
+			tlcs: tlcsRows.length === 0,
+			prosec: prosecRows.length === 0,
+			aladi: aladiRows.length === 0,
+			immex: immexRows.length === 0,
+			acuerdos: acuerdosRows.length === 0
+		};
+
+		isResolvingTabs = false;
+	}
+
+	$effect(() => {
+		const frac = selectedFraction;
+		const fracDigits = fractionDigits;
+
+		activeTab = 'descripcion';
+		sitarTLCSData = [];
+		sitarPROSECData = [];
+		sitarALADIData = [];
+		sitarIMMEXData = [];
+		sitarAcuerdosData = [];
+		activeError = '';
+
+		if (!frac || !fracDigits) {
+			isResolvingTabs = false;
+			noDataTabs = { descripcion: false, tlcs: true, prosec: true, aladi: true, immex: true, acuerdos: true };
+			return;
+		}
+
+		// Block all non-description tabs while resolving availability for the new selection
+		noDataTabs = { descripcion: false, tlcs: true, prosec: true, aladi: true, immex: true, acuerdos: true };
+		isResolvingTabs = true;
+		const token = ++resolveToken;
+		void resolveTabAvailability(token, fracDigits, frac);
+	});
+
+	$effect(() => {
+		if (!selectedFraction || activeTab === 'descripcion') return;
+		hydrateTabFromCache(activeTab);
+	});
+</script>
+
+<div class="flex h-full flex-col gap-4 overflow-hidden">
+		<div class="overflow-hidden rounded-xl border bg-card shadow-sm">
+			<div class="border-b bg-muted/50 p-3">
+				<h3 class="flex items-center gap-2 text-xs font-bold tracking-wider uppercase">
+					<ClipboardList class="h-4 w-4" /> Información Arancelaria (Solo Consulta)
+				</h3>
+			</div>
+			<div class="overflow-x-auto">
+				<table class="w-full text-xs">
+					<thead class="border-b bg-muted/30">
+						<tr>
+							<th class="px-4 py-2 text-left font-bold">Fracción</th>
+							<th class="px-4 py-2 text-center font-bold">UMT</th>
+							<th class="px-4 py-2 text-center font-bold">UM</th>
+							<th class="px-4 py-2 text-center font-bold">Advalorem Impo</th>
+							<th class="px-4 py-2 text-center font-bold">Advalorem Expo</th>
+						</tr>
+					</thead>
+					<tbody class="divide-y">
+						<tr>
+							<td class="px-4 py-3 font-mono text-sm font-bold">
+								{headerFraction || '-'}
+							</td>
+							<td class="px-4 py-3 text-center">{selectedFraction?.umt || '-'}</td>
+							<td class="px-4 py-3 text-center">{selectedFraction?.um_code || '-'}</td>
+							<td class="px-4 py-3 text-center font-bold text-blue-600">{selectedFraction?.adv_impo || '-'}</td>
+							<td class="px-4 py-3 text-center font-bold text-orange-600">{selectedFraction?.adv_expo || '-'}</td>
+						</tr>
+					</tbody>
+				</table>
+			</div>
+		</div>
+
+		{#if !hasSelection}
+			<div class="flex-1 rounded-xl border border-dashed bg-muted/10 p-4 text-xs text-muted-foreground">
+				Selecciona una fracción de la tabla para ver su detalle SITAR (Descripción, TLCS, PROSEC, ALADI).
+			</div>
+		{:else}
+		<div class="flex-1 min-h-0">
+		<Tabs.Root value={activeTab} onValueChange={(v) => (activeTab = v as TabKey)} class="h-full w-full flex flex-col">
+			<Tabs.List class="mb-2 grid w-full grid-cols-6">
+				<Tabs.Trigger value="descripcion" class="text-[10px] font-bold uppercase">Descripción</Tabs.Trigger>
+				<Tabs.Trigger value="tlcs" class="text-[10px] font-bold uppercase" disabled={noDataTabs.tlcs || isResolvingTabs}>TLCS</Tabs.Trigger>
+				<Tabs.Trigger value="prosec" class="text-[10px] font-bold uppercase" disabled={noDataTabs.prosec || isResolvingTabs}>PROSEC</Tabs.Trigger>
+				<Tabs.Trigger value="aladi" class="text-[10px] font-bold uppercase" disabled={noDataTabs.aladi || isResolvingTabs}>ALADI</Tabs.Trigger>
+				<Tabs.Trigger value="immex" class="text-[10px] font-bold uppercase" disabled={noDataTabs.immex || isResolvingTabs}>IMMEX</Tabs.Trigger>
+				<Tabs.Trigger value="acuerdos" class="text-[10px] font-bold uppercase" disabled={noDataTabs.acuerdos || isResolvingTabs}>ACUERDOS</Tabs.Trigger>
+			</Tabs.List>
+
+			{#if activeError}
+				<div class="mb-2 rounded-md border border-destructive p-2 text-xs text-destructive">{activeError}</div>
+			{/if}
+
+			<Tabs.Content value="descripcion" class="min-h-0 flex-1">
+				<div class="min-h-[120px] rounded-xl border bg-slate-50/50 p-4 dark:bg-slate-900/10">
+					<h3 class="flex items-center gap-2 text-xs font-bold tracking-wider text-muted-foreground uppercase">
+						<FileText class="h-4 w-4" /> Descripción de la Fracción
+					</h3>
+					<div class="mt-2 text-sm leading-relaxed font-medium whitespace-pre-wrap text-slate-600 dark:text-slate-400">
+						{selectedFraction?.description || 'No hay descripción disponible para esta fracción.'}
+					</div>
+				</div>
+			</Tabs.Content>
+
+			<Tabs.Content value="tlcs" class="min-h-0 flex-1">
+				<div class="min-h-[120px] h-full overflow-hidden rounded-xl border bg-card">
+					<div class="flex items-center justify-between border-b bg-muted/30 p-3">
+						<h3 class="flex items-center gap-2 text-xs font-bold tracking-wider text-muted-foreground uppercase">
+							<ShieldCheck class="h-4 w-4" /> Información TLCS
+						</h3>
+					</div>
+					<div class="h-full overflow-y-auto overflow-x-auto">
+						<table class="w-full text-xs">
+							<thead class="border-b bg-muted/10">
+								<tr>
+									<th class="px-4 py-2 text-left font-bold">País</th>
+									<th class="px-4 py-2 text-center font-bold">Tasa</th>
+									<th class="px-4 py-2 text-center font-bold">D.O.F</th>
+									<th class="px-4 py-2 text-left font-bold">Notas</th>
+								</tr>
+							</thead>
+							<tbody class="divide-y">
+								{#each sitarTLCSData as item}
+									<tr>
+										<td class="px-4 py-2 font-bold">{item.PAIS}</td>
+										<td class="px-4 py-2 text-center font-mono text-blue-600">{item.TASATXT}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.DOF || '-'}</td>
+										<td class="max-w-xs truncate px-4 py-2 text-left text-[10px]" title={item.NOTA || ''}>{item.NOTA || '-'}</td>
+									</tr>
+								{:else}
+									<tr><td colspan="4" class="px-4 py-8 text-center text-muted-foreground italic">No hay información de TLCS disponible para esta fracción.</td></tr>
+								{/each}
+							</tbody>
+						</table>
+					</div>
+				</div>
+			</Tabs.Content>
+
+			<Tabs.Content value="prosec" class="min-h-0 flex-1">
+				<div class="min-h-[120px] h-full overflow-hidden rounded-xl border bg-card">
+					<div class="flex items-center justify-between border-b bg-muted/30 p-3">
+						<h3 class="flex items-center gap-2 text-xs font-bold tracking-wider text-muted-foreground uppercase">
+							<Layers class="h-4 w-4" /> Programa PROSEC
+						</h3>
+					</div>
+					<div class="h-full overflow-y-auto overflow-x-auto">
+						<table class="w-full text-xs">
+							<thead class="border-b bg-muted/10">
+								<tr>
+									<th class="px-4 py-2 text-left font-bold">Artículo</th>
+									<th class="px-4 py-2 text-center font-bold">Sector</th>
+									<th class="px-4 py-2 text-center font-bold">Tasa Txt</th>
+									<th class="px-4 py-2 text-center font-bold">D.O.F</th>
+								</tr>
+							</thead>
+							<tbody class="divide-y">
+								{#each sitarPROSECData as item}
+									<tr>
+										<td class="max-w-xs truncate px-4 py-2 text-left font-medium" title={item.PRODUCTO}>{item.PRODUCTO}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.SECTOR}</td>
+										<td class="px-4 py-2 text-center font-mono font-bold text-orange-600">{item.TASA}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.DOF || '-'}</td>
+									</tr>
+								{:else}
+									<tr><td colspan="4" class="px-4 py-8 text-center text-muted-foreground italic">No hay información de PROSEC disponible para esta fracción.</td></tr>
+								{/each}
+							</tbody>
+						</table>
+					</div>
+				</div>
+			</Tabs.Content>
+
+			<Tabs.Content value="aladi" class="min-h-0 flex-1">
+				<div class="min-h-[120px] h-full overflow-hidden rounded-xl border bg-card">
+					<div class="flex items-center justify-between border-b bg-muted/30 p-3">
+						<h3 class="flex items-center gap-2 text-xs font-bold tracking-wider text-muted-foreground uppercase">
+							<Globe class="h-4 w-4" /> Acuerdo ALADI
+						</h3>
+					</div>
+					<div class="h-full overflow-y-auto overflow-x-auto">
+						<table class="w-full text-xs">
+							<thead class="border-b bg-muted/10">
+								<tr>
+									<th class="px-4 py-2 text-left font-bold">Acuerdo</th>
+									<th class="px-4 py-2 text-center font-bold">País</th>
+									<th class="px-4 py-2 text-center font-bold">Tasa</th>
+									<th class="px-4 py-2 text-center font-bold">D.O.F</th>
+								</tr>
+							</thead>
+							<tbody class="divide-y">
+								{#each sitarALADIData as item}
+									<tr>
+										<td class="px-4 py-2 text-left font-medium">{item.ACUERDO}</td>
+										<td class="px-4 py-2 text-center font-bold">{item.PAIS}</td>
+										<td class="px-4 py-2 text-center font-mono text-green-600">{item.TASATXT}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.DOF || '-'}</td>
+									</tr>
+								{:else}
+									<tr><td colspan="4" class="px-4 py-8 text-center text-muted-foreground italic">No hay información de ALADI disponible para esta fracción.</td></tr>
+								{/each}
+							</tbody>
+						</table>
+					</div>
+				</div>
+			</Tabs.Content>
+			<!-- IMMEX / REIT -->
+			<Tabs.Content value="immex" class="min-h-0 flex-1">
+				<div class="min-h-[120px] h-full overflow-hidden rounded-xl border bg-card">
+					<div class="flex items-center justify-between border-b bg-muted/30 p-3">
+						<h3 class="flex items-center gap-2 text-xs font-bold tracking-wider text-muted-foreground uppercase">
+							IMMEX / REIT
+						</h3>
+					</div>
+					<div class="h-full overflow-y-auto overflow-x-auto">
+						<table class="w-full text-xs">
+							<thead class="border-b bg-muted/10">
+								<tr>
+									<th class="px-4 py-2 text-left font-bold">Artículo</th>
+									<th class="px-4 py-2 text-left font-bold">Fundamento</th>
+									<th class="px-4 py-2 text-left font-bold">Acuerdo</th>
+									<th class="px-4 py-2 text-center font-bold">Permiso</th>
+									<th class="px-4 py-2 text-center font-bold">D.O.F</th>
+								</tr>
+							</thead>
+							<tbody class="divide-y">
+								{#each sitarIMMEXData as item}
+									<tr>
+										<td class="px-4 py-2 text-left">{item.ARTICULO || ''}</td>
+										<td class="px-4 py-2 text-left">{item.FUNDAMENTO || ''}</td>
+										<td class="px-4 py-2 text-left">{item.ACUERDO || ''}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.PERMISO || '-'}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.DOF || '-'}</td>
+									</tr>
+								{:else}
+									<tr>
+										<td colspan="5" class="px-4 py-8 text-center text-muted-foreground italic">
+											No hay información de IMMEX disponible para esta fracción.
+										</td>
+									</tr>
+								{/each}
+							</tbody>
+						</table>
+					</div>
+				</div>
+			</Tabs.Content>
+			<!-- ACUERDOS / Requisito previo -->
+			<Tabs.Content value="acuerdos" class="min-h-0 flex-1">
+				<div class="min-h-[120px] h-full overflow-hidden rounded-xl border bg-card">
+					<div class="flex items-center justify-between border-b bg-muted/30 p-3">
+						<h3 class="flex items-center gap-2 text-xs font-bold tracking-wider text-muted-foreground uppercase">
+							Acuerdos / Requisitos previos
+						</h3>
+					</div>
+					<div class="h-full overflow-y-auto overflow-x-auto">
+						<table class="w-full text-xs">
+							<thead class="border-b bg-muted/10">
+								<tr>
+									<th class="px-4 py-2 text-left font-bold">Descripción</th>
+									<th class="px-4 py-2 text-center font-bold">Permiso</th>
+									<th class="px-4 py-2 text-center font-bold">D.O.F</th>
+									<th class="px-4 py-2 text-center font-bold">Vigencia</th>
+								</tr>
+							</thead>
+							<tbody class="divide-y">
+								{#each sitarAcuerdosData as item}
+									<tr>
+										<td class="px-4 py-2 text-left">{item.DESCRIPCION || ''}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.PERMISO || '-'}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.DOF || '-'}</td>
+										<td class="px-4 py-2 text-center font-mono">{item.VIGENCIA || '-'}</td>
+									</tr>
+								{:else}
+									<tr>
+										<td colspan="4" class="px-4 py-8 text-center text-muted-foreground italic">
+											No hay información de ACUERDOS disponible para esta fracción.
+										</td>
+									</tr>
+								{/each}
+							</tbody>
+						</table>
+					</div>
+				</div>
+			</Tabs.Content>
+		</Tabs.Root>
+		</div>
+		{/if}
+</div>

frontend/src/lib/components/dashboard/goods/fractions/TariffFractionList.svelte

@@ -20,22 +20,29 @@
 	import { untrack } from 'svelte';
 	import * as AlertDialog from '$lib/components/ui/alert-dialog';
 	import TariffFractionFormDialog from './TariffFractionFormDialog.svelte';
+	import SitarFractionTabs from './SitarFractionTabs.svelte';
 	import { toast } from 'svelte-sonner';
 	import { currentUser, userHasPermission } from '$lib/auth';
 	import ErrorState from '$lib/components/dashboard/common/error-state.svelte';
+	import {
+		getTariffFractionDisplayFraction,
+		getTariffFractionDisplayKey
+	} from '$lib/utils/tariff-fraction-display';
 
 	let {
 		title = 'Fracciones Arancelarias',
 		catalog = 'mex', // 'mex' or 'usa'
 		levelFilter = null, // null or number
 		readOnly = false,
-		basePerm: customBasePerm = null
+		basePerm: customBasePerm = null,
+		showSitarTabsOnSelect = false
 	}: {
 		title?: string;
 		catalog?: string;
 		levelFilter?: number | null;
 		readOnly?: boolean;
 		basePerm?: string | null;
+		showSitarTabsOnSelect?: boolean;
 	} = $props();
 
 	let fractions = $state<TariffFraction[]>([]);
@@ -74,6 +81,7 @@
 
 	let isFormDialogOpen = $state(false);
 	let selectedFraction = $state<TariffFraction | null>(null);
+	let selectedDetailFraction = $state<TariffFraction | null>(null);
 	let isManageMode = $state(false); // If true, opens form in edit mode
 
 	// Delete confirmation
@@ -110,6 +118,11 @@
 				} else {
 					fractions = [...fractions, ...newItems];
 				}
+				if (selectedDetailFraction) {
+					selectedDetailFraction =
+						[...fractions, ...newItems].find((item) => item.id === selectedDetailFraction?.id) ||
+						selectedDetailFraction;
+				}
 				totalFractions = payload.total || 0;
 
 				// Safer end-of-data detection
@@ -171,6 +184,11 @@
 		isFormDialogOpen = true;
 	}
 
+	function selectFractionDetail(fraction: TariffFraction) {
+		if (!showSitarTabsOnSelect || catalog !== 'mex') return;
+		selectedDetailFraction = fraction;
+	}
+
 	function confirmDelete(fraction: TariffFraction) {
 		fractionToDelete = fraction;
 		showDeleteConfirm = true;
@@ -244,7 +262,8 @@
 			</div>
 		{/if}
 
-		<Card.Root class="border bg-background flex min-h-0 flex-1 flex-col overflow-hidden">
+		<div class="grid min-h-0 flex-1 grid-cols-1 gap-4 xl:grid-cols-12">
+		<Card.Root class="border bg-background flex min-h-0 flex-1 flex-col overflow-hidden xl:col-span-8">
 			<Card.Header>
 				<div class="flex flex-wrap items-center justify-end gap-3">
 					<div class="flex flex-wrap items-center gap-2">
@@ -289,9 +308,12 @@
 								</TableRow>
 							{:else}
 								{#each fractions as fraction (fraction.id)}
-									<TableRow class="catalog-table-row">
-										<TableCell class="font-mono">{fraction.um_code || fraction.code}</TableCell>
-										<TableCell class="font-medium">{fraction.fraction}</TableCell>
+									<TableRow
+										class="catalog-table-row {selectedDetailFraction?.id === fraction.id ? 'bg-muted/40' : ''}"
+										onclick={() => selectFractionDetail(fraction)}
+									>
+										<TableCell class="font-mono">{getTariffFractionDisplayKey(fraction)}</TableCell>
+										<TableCell class="font-medium">{getTariffFractionDisplayFraction(fraction)}</TableCell>
 										<TableCell class="max-w-md truncate" title={fraction.description}>
 											{fraction.description}
 										</TableCell>
@@ -346,6 +368,12 @@
 				</div>
 			</Card.Content>
 		</Card.Root>
+		{#if showSitarTabsOnSelect && catalog === 'mex'}
+			<div class="min-h-0 xl:col-span-4 flex flex-col overflow-hidden">
+				<SitarFractionTabs selectedFraction={selectedDetailFraction} />
+			</div>
+		{/if}
+		</div>
 
 		<div class="flex-none text-sm text-muted-foreground">Mostrando {fractions.length} de {totalFractions} registros</div>
 	{/if}

frontend/src/lib/components/dashboard/goods/modales/TariffFractionSelector.svelte

@@ -13,6 +13,7 @@
 		buildMexTariffDigitsFromCatalogRow,
 		formatMexTariffDigitsForDisplay
 	} from '$lib/utils/mexican-tariff-fraction';
+	import { getTariffFractionDisplayKey } from '$lib/utils/tariff-fraction-display';
 	import { m } from '$lib/i18n/messages';
 
 	let {
@@ -139,7 +140,7 @@
 									open = false;
 								}}
 							>
-								<td class="px-4 py-2 font-mono whitespace-nowrap">{fraction.um_code}</td>
+								<td class="px-4 py-2 font-mono whitespace-nowrap">{getTariffFractionDisplayKey(fraction)}</td>
 								<td class="px-4 py-2 whitespace-nowrap font-mono"
 									>{formatMexTariffDigitsForDisplay(
 										buildMexTariffDigitsFromCatalogRow(fraction)

frontend/src/lib/components/dashboard/goods/modales/us-fraction-selector-dialog.svelte

@@ -9,6 +9,7 @@
         getTariffFractions,
         type TariffFraction
     } from "$lib/api/dashboard/a76/general_catalogs/tariff-fractions";
+    import { getTariffFractionDisplayKey } from '$lib/utils/tariff-fraction-display';
     import { companyStore } from "$lib/stores/company.svelte";
     import { m } from '$lib/i18n/messages';
 
@@ -155,7 +156,7 @@
                                     <div class="flex items-center gap-2">
                                         <Hash class="h-3 w-3 text-blue-500" />
                                         <span class="font-mono font-bold text-blue-600 dark:text-blue-400">
-                                            {item.fraction || item.code}
+                                            {getTariffFractionDisplayKey(item)}
                                         </span>
                                     </div>
                                 </Table.Cell>

frontend/src/lib/utils/tariff-fraction-display.test.ts

@@ -0,0 +1,43 @@
+import { describe, expect, it } from 'vitest';
+import {
+	getTariffFractionDisplayFraction,
+	getTariffFractionDisplayKey
+} from './tariff-fraction-display';
+import type { TariffFraction } from '$lib/api/dashboard/a76/general_catalogs/tariff-fractions';
+
+function buildFraction(partial: Partial<TariffFraction>): TariffFraction {
+	return {
+		id: 1,
+		code: '',
+		fraction: '',
+		description: null,
+		nico: null,
+		umt: null,
+		adv_impo: null,
+		adv_expo: null,
+		updated_at: null,
+		dof: null,
+		aplica_ieps: null,
+		um_code: null,
+		...partial
+	};
+}
+
+describe('tariff-fraction-display', () => {
+	it('uses technical code for key column', () => {
+		const row = buildFraction({
+			code: '01012101',
+			fraction: '0101.21.01',
+			um_code: '06'
+		});
+		expect(getTariffFractionDisplayKey(row)).toBe('01012101');
+	});
+
+	it('uses formatted fraction for fraction column', () => {
+		const row = buildFraction({
+			code: '1234567890',
+			fraction: '1234.56.78.90'
+		});
+		expect(getTariffFractionDisplayFraction(row)).toBe('1234.56.78.90');
+	});
+});

frontend/src/lib/utils/tariff-fraction-display.ts

@@ -0,0 +1,9 @@
+import type { TariffFraction } from '$lib/api/dashboard/a76/general_catalogs/tariff-fractions';
+
+export function getTariffFractionDisplayKey(fraction: TariffFraction): string {
+	return fraction.code || '-';
+}
+
+export function getTariffFractionDisplayFraction(fraction: TariffFraction): string {
+	return fraction.fraction || '-';
+}

frontend/src/routes/dashboard/general_catalogs/tariff-fractions/sitar/+page.svelte

@@ -6,6 +6,7 @@
 <TariffFractionList
 	title={m['sidebar.fractions.sitar']()}
 	catalog="mex"
-	levelFilter={-1}
+	levelFilter={5}
 	readOnly={true}
+	showSitarTabsOnSelect={true}
 />