feat(tender-details): add lots section and enhance tender details functionality

- Introduced a new "Lots" section in the tender details page to display lot-specific information, improving data organization and visibility.
- Updated the tender navigation to conditionally include the "Lots" section based on its availability.
- Enhanced the tender display utilities with functions to determine the visibility of various sections, including lots, description, and translation.
- Refactored components to utilize the new utilities for better conditional rendering and improved user experience.
- Improved type definitions for tender details to ensure better type safety and clarity.

src/app/tenders/[details]/components/tender-ai-summary-section.tsx

@@ -1,5 +1,6 @@
 import type { TTenderDetails } from "@/lib/api/types/Tenders";
 import { HEADER_SCROLL_MARGIN, TENDER_SECTION_IDS } from "../constants";
+import { shouldShowAiSummarySection } from "../tender-display-utils";
 import { SectionHeading } from "./section-heading";
 
 type TenderAiSummarySectionProps = {
@@ -9,12 +10,14 @@ type TenderAiSummarySectionProps = {
 export function TenderAiSummarySection({
   tender,
 }: TenderAiSummarySectionProps) {
+  if (!shouldShowAiSummarySection(tender)) return null;
+
   return (
     <div id={TENDER_SECTION_IDS.aiSummary} className={HEADER_SCROLL_MARGIN}>
       <SectionHeading>AI summary</SectionHeading>
       <div className="rounded-2xl border border-stroke/60 bg-gray-2/40 p-6 shadow-inner dark:border-dark-3 dark:bg-dark-3/30">
         <p className="whitespace-pre-wrap text-sm leading-relaxed text-dark dark:text-white/90">
-          {tender.overall_summary || "Summary not ready yet"}
+          {tender.overall_summary}
         </p>
       </div>
     </div>

src/app/tenders/[details]/components/tender-description-section.tsx

@@ -1,5 +1,6 @@
 import type { TTenderDetails } from "@/lib/api/types/Tenders";
 import { HEADER_SCROLL_MARGIN, TENDER_SECTION_IDS } from "../constants";
+import { shouldShowDescriptionSection } from "../tender-display-utils";
 import { SectionHeading } from "./section-heading";
 
 type TenderDescriptionSectionProps = {
@@ -9,12 +10,14 @@ type TenderDescriptionSectionProps = {
 export function TenderDescriptionSection({
   tender,
 }: TenderDescriptionSectionProps) {
+  if (!shouldShowDescriptionSection(tender)) return null;
+
   return (
     <div id={TENDER_SECTION_IDS.description} className={HEADER_SCROLL_MARGIN}>
       <SectionHeading>Description</SectionHeading>
       <div className="rounded-2xl border border-stroke/60 bg-gray-2/40 p-6 shadow-inner dark:border-dark-3 dark:bg-dark-3/30">
         <p className="whitespace-pre-wrap text-sm leading-relaxed text-dark dark:text-white/90">
-          {tender.description || "—"}
+          {tender.description}
         </p>
       </div>
     </div>

src/app/tenders/[details]/components/tender-details-content.tsx

@@ -5,10 +5,12 @@ import type {
 import { shouldShowLocationSection } from "../tender-nav-utils";
 import type { TenderNavItem } from "../types";
 import { scrollToTenderSection } from "../scroll-to-section";
+import { shouldShowLotsSection } from "../tender-display-utils";
 import { TenderAiSummarySection } from "./tender-ai-summary-section";
 import { TenderDescriptionSection } from "./tender-description-section";
 import { TenderDocumentsSection } from "./tender-documents-section";
 import { TenderLocationSection } from "./tender-location-section";
+import { TenderLotsSection } from "./tender-lots-section";
 import { TenderProcurementSection } from "./tender-procurement-section";
 import { TenderSectionNavList } from "./tender-section-nav-list";
 import { TenderTimelineSection } from "./tender-timeline-section";
@@ -52,6 +54,9 @@ export function TenderDetailsContent({
           </div>
 
           <TenderProcurementSection tender={tender} />
+          {shouldShowLotsSection(tender) ? (
+            <TenderLotsSection tender={tender} />
+          ) : null}
           <TenderTimelineSection tender={tender} />
 
           {showLocation && <TenderLocationSection tender={tender} />}

src/app/tenders/[details]/components/tender-location-section.tsx

@@ -9,6 +9,7 @@ import {
   HEADER_SCROLL_MARGIN,
   TENDER_SECTION_IDS,
 } from "../constants";
+import { isValidRegionCode } from "../tender-display-utils";
 import { isValidDisplayCountryCode } from "../tender-nav-utils";
 import { SectionHeading } from "./section-heading";
 
@@ -34,10 +35,25 @@ export function TenderLocationSection({ tender }: TenderLocationSectionProps) {
     Number.isFinite(tender.estimated_value) &&
     tender.estimated_value > 0;
 
+  const regionNorm = tender.region_code?.trim() ?? "";
+  const hasValidRegion = isValidRegionCode(regionNorm);
+
   return (
     <div id={TENDER_SECTION_IDS.location} className={HEADER_SCROLL_MARGIN}>
       <SectionHeading>Location & currency</SectionHeading>
       <div className="grid gap-4 sm:grid-cols-2 lg:max-w-5xl lg:grid-cols-3">
+        {hasValidRegion && (
+          <div className="shadow-theme-xs relative overflow-hidden rounded-2xl border border-stroke/70 bg-gradient-to-br from-white via-gray-2/30 to-violet/[0.06] p-5 dark:border-dark-3 dark:from-gray-dark dark:via-gray-dark dark:to-violet/[0.12]">
+            <div className="pointer-events-none absolute -right-8 top-0 h-24 w-24 rounded-full bg-violet/15 blur-2xl dark:bg-violet/25" />
+            <h3 className="mb-4 text-xs font-semibold uppercase tracking-wide text-dark-5 dark:text-dark-6">
+              Region (NUTS)
+            </h3>
+            <p className="text-sm font-semibold uppercase tracking-wide text-dark dark:text-white">
+              {regionNorm}
+            </p>
+          </div>
+        )}
+
         {hasValidCountryCodeForDisplay && (
           <div className="shadow-theme-xs relative overflow-hidden rounded-2xl border border-stroke/70 bg-gradient-to-br from-white via-gray-2/30 to-primary/[0.06] p-5 dark:border-dark-3 dark:from-gray-dark dark:via-gray-dark dark:to-primary/[0.12]">
             <div className="pointer-events-none absolute -right-8 top-0 h-24 w-24 rounded-full bg-primary/15 blur-2xl dark:bg-primary/25" />

src/app/tenders/[details]/components/tender-lots-section.tsx

@@ -0,0 +1,112 @@
+import { ShowcaseSection } from "@/components/Layouts/showcase-section";
+import type { TTenderDetails, TTenderLot } from "@/lib/api/types/Tenders";
+import { cn } from "@/lib/utils";
+import { isNonEmptyTrimmed } from "../tender-display-utils";
+import {
+  HEADER_SCROLL_MARGIN,
+  SHOWCASE_CENTERED_BODY,
+  TENDER_SECTION_IDS,
+} from "../constants";
+import { SectionHeading } from "./section-heading";
+
+type TenderLotsSectionProps = {
+  tender: TTenderDetails;
+};
+
+function lotHasVisibleContent(lot: TTenderLot): boolean {
+  return (
+    isNonEmptyTrimmed(lot.lot_id) ||
+    isNonEmptyTrimmed(lot.title) ||
+    isNonEmptyTrimmed(lot.description) ||
+    isNonEmptyTrimmed(lot.main_nature_of_contract) ||
+    isNonEmptyTrimmed(lot.main_classification) ||
+    isNonEmptyTrimmed(lot.main_classification_display) ||
+    (typeof lot.estimated_value === "number" &&
+      Number.isFinite(lot.estimated_value) &&
+      lot.estimated_value > 0) ||
+    isNonEmptyTrimmed(lot.currency)
+  );
+}
+
+export function TenderLotsSection({ tender }: TenderLotsSectionProps) {
+  const lots = (tender.lots ?? []).filter(lotHasVisibleContent);
+  if (lots.length === 0) return null;
+
+  return (
+    <div id={TENDER_SECTION_IDS.lots} className={HEADER_SCROLL_MARGIN}>
+      <SectionHeading>Lots</SectionHeading>
+      <div className="space-y-6">
+        {lots.map((lot, idx) => {
+          const key = lot.lot_id?.trim() || `lot-${idx}`;
+          const cpv =
+            lot.main_classification_display?.trim() ||
+            lot.main_classification?.trim();
+          const hasValue =
+            typeof lot.estimated_value === "number" &&
+            Number.isFinite(lot.estimated_value) &&
+            lot.estimated_value > 0;
+          const currency = lot.currency?.trim().toUpperCase() ?? "";
+
+          return (
+            <div
+              key={key}
+              className="rounded-2xl border border-stroke/60 bg-gray-2/30 p-4 shadow-inner dark:border-dark-3 dark:bg-dark-3/25 sm:p-6"
+            >
+              <h3 className="mb-4 text-sm font-semibold text-dark dark:text-white">
+                {isNonEmptyTrimmed(lot.lot_id) ? lot.lot_id : `Lot ${idx + 1}`}
+              </h3>
+              <div className="grid gap-4 sm:grid-cols-2 xl:grid-cols-3">
+                {isNonEmptyTrimmed(lot.title) ? (
+                  <ShowcaseSection
+                    title="Title"
+                    rootClassName={cn("sm:col-span-2 xl:col-span-3")}
+                    className="text-start"
+                  >
+                    <span className="font-medium text-dark dark:text-white">
+                      {lot.title}
+                    </span>
+                  </ShowcaseSection>
+                ) : null}
+                {isNonEmptyTrimmed(lot.description) ? (
+                  <ShowcaseSection
+                    title="Description"
+                    rootClassName={cn("sm:col-span-2 xl:col-span-3")}
+                    className="text-start"
+                  >
+                    <p className="text-sm leading-relaxed text-dark dark:text-white/90">
+                      {lot.description}
+                    </p>
+                  </ShowcaseSection>
+                ) : null}
+                {isNonEmptyTrimmed(lot.main_nature_of_contract) ? (
+                  <ShowcaseSection title="Nature of contract" {...SHOWCASE_CENTERED_BODY}>
+                    <span className="font-medium text-dark dark:text-white">
+                      {lot.main_nature_of_contract}
+                    </span>
+                  </ShowcaseSection>
+                ) : null}
+                {cpv ? (
+                  <ShowcaseSection title="Classification (CPV)" {...SHOWCASE_CENTERED_BODY}>
+                    <span className="font-medium text-dark dark:text-white">{cpv}</span>
+                  </ShowcaseSection>
+                ) : null}
+                {hasValue ? (
+                  <ShowcaseSection title="Estimated value" {...SHOWCASE_CENTERED_BODY}>
+                    <span className="font-medium tabular-nums text-dark dark:text-white">
+                      {new Intl.NumberFormat().format(lot.estimated_value!)}
+                      {currency ? (
+                        <span className="ms-1 text-sm font-medium uppercase text-dark-5 dark:text-dark-6">
+                          {currency}
+                        </span>
+                      ) : null}
+                    </span>
+                  </ShowcaseSection>
+                ) : null}
+              </div>
+            </div>
+          );
+        })}
+      </div>
+    </div>
+  );
+}

src/app/tenders/[details]/components/tender-procurement-section.tsx

@@ -1,12 +1,17 @@
 import { ShowcaseSection } from "@/components/Layouts/showcase-section";
+import type { TTenderAddress, TTenderDetails } from "@/lib/api/types/Tenders";
 import { cn } from "@/lib/utils";
-import type { TTenderDetails } from "@/lib/api/types/Tenders";
 import Link from "next/link";
 import {
   HEADER_SCROLL_MARGIN,
   SHOWCASE_CENTERED_BODY,
   TENDER_SECTION_IDS,
 } from "../constants";
+import {
+  hasBuyerExtendedDetails,
+  isNonEmptyTrimmed,
+  isValidHttpUrl,
+} from "../tender-display-utils";
 import { SectionHeading } from "./section-heading";
 
 type TenderProcurementSectionProps = {
@@ -28,11 +33,38 @@ function uniqueTrimmedNoticeIds(ids: string[] | undefined): string[] {
   return out;
 }
 
+function formatAddressLines(addr: TTenderAddress | undefined): string[] {
+  if (!addr) return [];
+  const lines: string[] = [];
+  if (isNonEmptyTrimmed(addr.street_name)) lines.push(addr.street_name!.trim());
+  const cityLine = [addr.postal_zone, addr.city_name]
+    .map((s) => s?.trim())
+    .filter(Boolean)
+    .join(" ");
+  if (cityLine) lines.push(cityLine);
+  const regionCountry = [addr.country_subentity_code, addr.country_code]
+    .map((s) => s?.trim())
+    .filter(Boolean)
+    .join(" · ");
+  if (regionCountry) lines.push(regionCountry);
+  return lines;
+}
+
 export function TenderProcurementSection({ tender }: TenderProcurementSectionProps) {
   const relatedNoticeIds = uniqueTrimmedNoticeIds(tender.related_notice_publication_ids);
-
   const noticeTypeCode = tender.notice_type_code?.trim();
-  const mainClassification = tender.main_classification?.trim();
+  const mainCpv =
+    tender.main_classification_display?.trim() || tender.main_classification?.trim();
+  const noticePubId = tender.notice_publication_id?.trim();
+  const durationParts = [tender.duration?.trim(), tender.duration_unit?.trim()].filter(
+    Boolean,
+  );
+  const durationLabel = durationParts.join(" ");
+
+  const buyer = tender.buyer_organization;
+  const buyerAddressLines = formatAddressLines(buyer.address);
+  const showBuyerOrgName = isNonEmptyTrimmed(buyer.name);
+  const showBuyerExtended = hasBuyerExtendedDetails(tender);
 
   return (
     <div
@@ -41,61 +73,153 @@ export function TenderProcurementSection({ tender }: TenderProcurementSectionPro
     >
       <SectionHeading>Procurement</SectionHeading>
       <div className="grid gap-4 sm:grid-cols-2 xl:grid-cols-3 2xl:grid-cols-5">
-        <ShowcaseSection title="Tender ID" {...SHOWCASE_CENTERED_BODY}>
+        {isNonEmptyTrimmed(tender.tender_id) ? (
-          <span className="font-medium text-dark dark:text-white">
+          <ShowcaseSection title="Tender ID" {...SHOWCASE_CENTERED_BODY}>
-            {tender.tender_id}
+            <span className="font-medium text-dark dark:text-white">{tender.tender_id}</span>
-          </span>
+          </ShowcaseSection>
-        </ShowcaseSection>
+        ) : null}
-        <ShowcaseSection
+
-          title="Buyer organization"
+        {isNonEmptyTrimmed(tender.project_name) ? (
-          rootClassName={SHOWCASE_CENTERED_BODY.rootClassName}
+          <ShowcaseSection title="Project name" {...SHOWCASE_CENTERED_BODY}>
-          className={cn(
+            <span className="break-words font-medium text-dark dark:text-white">
-            "sm:col-span-2 xl:col-span-1 2xl:col-span-2",
+              {tender.project_name}
-            SHOWCASE_CENTERED_BODY.className,
+            </span>
-          )}
+          </ShowcaseSection>
-        >
+        ) : null}
-          <span className="font-medium text-dark dark:text-white">
+
-            {tender.buyer_organization.name}
+        {showBuyerOrgName ? (
-          </span>
+          <ShowcaseSection
-        </ShowcaseSection>
+            title="Buyer organization"
-        <ShowcaseSection title="Notice publication ID" {...SHOWCASE_CENTERED_BODY}>
+            rootClassName={SHOWCASE_CENTERED_BODY.rootClassName}
-          <span className="font-medium text-primary underline-offset-4 hover:underline">
+            className={cn(
-            <Link
+              "sm:col-span-2 xl:col-span-1 2xl:col-span-2",
-              href={`${TED_NOTICE_DETAIL}/${tender.notice_publication_id}`}
+              SHOWCASE_CENTERED_BODY.className,
-              target="_blank"
+            )}
-              rel="noopener noreferrer"
+          >
-            >
+            <span className="font-medium text-dark dark:text-white">{buyer.name}</span>
-              {tender.notice_publication_id}
+          </ShowcaseSection>
-            </Link>
+        ) : null}
-          </span>
+
-        </ShowcaseSection>
+        {noticePubId ? (
-        <ShowcaseSection title="Procedure code" {...SHOWCASE_CENTERED_BODY}>
+          <ShowcaseSection title="Notice publication ID" {...SHOWCASE_CENTERED_BODY}>
-          <span className="font-medium text-dark dark:text-white">
+            <span className="font-medium text-primary underline-offset-4 hover:underline">
-            {tender.procedure_code}
+              <Link
-          </span>
+                href={`${TED_NOTICE_DETAIL}/${noticePubId}`}
-        </ShowcaseSection>
+                target="_blank"
-        <ShowcaseSection title="Procurement type" {...SHOWCASE_CENTERED_BODY}>
+                rel="noopener noreferrer"
-          <span className="font-medium text-dark dark:text-white">
+              >
-            {tender.procurement_type_code}
+                {noticePubId}
-          </span>
+              </Link>
-        </ShowcaseSection>
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.procurement_project_id) ? (
+          <ShowcaseSection title="Procurement project ID" {...SHOWCASE_CENTERED_BODY}>
+            <span className="break-all font-medium text-dark dark:text-white">
+              {tender.procurement_project_id}
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.contract_folder_id) ? (
+          <ShowcaseSection title="Contract folder ID" {...SHOWCASE_CENTERED_BODY}>
+            <span className="break-all font-medium text-dark dark:text-white">
+              {tender.contract_folder_id}
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.contract_notice_id) ? (
+          <ShowcaseSection title="Contract notice ID" {...SHOWCASE_CENTERED_BODY}>
+            <span className="break-all font-medium text-dark dark:text-white">
+              {tender.contract_notice_id}
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.notice_identifier) ? (
+          <ShowcaseSection title="Notice identifier" {...SHOWCASE_CENTERED_BODY}>
+            <span className="break-all font-medium text-dark dark:text-white">
+              {tender.notice_identifier}
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.notice_version) ? (
+          <ShowcaseSection title="Notice version" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">
+              {tender.notice_version}
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.gazette_id) ? (
+          <ShowcaseSection title="Gazette ID" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">{tender.gazette_id}</span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.form_type) ? (
+          <ShowcaseSection title="Form type" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">{tender.form_type}</span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.notice_sub_type_code) ? (
+          <ShowcaseSection title="Notice sub-type code" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">
+              {tender.notice_sub_type_code}
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.source) ? (
+          <ShowcaseSection title="Source" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">{tender.source}</span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.procedure_code) ? (
+          <ShowcaseSection title="Procedure code" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">{tender.procedure_code}</span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.procurement_type_code) ? (
+          <ShowcaseSection title="Procurement type" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">
+              {tender.procurement_type_code}
+            </span>
+          </ShowcaseSection>
+        ) : null}
+
         {noticeTypeCode ? (
           <ShowcaseSection title="Notice type code" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">{noticeTypeCode}</span>
+          </ShowcaseSection>
+        ) : null}
+
+        {mainCpv ? (
+          <ShowcaseSection title="Main classification (CPV)" {...SHOWCASE_CENTERED_BODY}>
+            <span className="font-medium text-dark dark:text-white">{mainCpv}</span>
+          </ShowcaseSection>
+        ) : null}
+
+        {isNonEmptyTrimmed(tender.estimated_value_vat_basis) ? (
+          <ShowcaseSection title="Estimated value (VAT basis)" {...SHOWCASE_CENTERED_BODY}>
             <span className="font-medium text-dark dark:text-white">
-              {noticeTypeCode}
+              {tender.estimated_value_vat_basis}
             </span>
           </ShowcaseSection>
         ) : null}
-        {mainClassification ? (
+
-          <ShowcaseSection
+        {durationLabel ? (
-            title="Main classification (CPV)"
+          <ShowcaseSection title="Duration" {...SHOWCASE_CENTERED_BODY}>
-            {...SHOWCASE_CENTERED_BODY}
+            <span className="font-medium text-dark dark:text-white">{durationLabel}</span>
-          >
-            <span className="font-medium text-dark dark:text-white">
-              {mainClassification}
-            </span>
           </ShowcaseSection>
         ) : null}
+
         {relatedNoticeIds.length > 0 ? (
           <ShowcaseSection
             title="Related notice publications"
@@ -122,6 +246,78 @@ export function TenderProcurementSection({ tender }: TenderProcurementSectionPro
           </ShowcaseSection>
         ) : null}
       </div>
+
+      {showBuyerExtended ? (
+        <div className="mt-8 space-y-4">
+          <h3 className="text-sm font-semibold uppercase tracking-wide text-dark-5 dark:text-dark-6">
+            Buyer contact &amp; address
+          </h3>
+          <div className="grid gap-4 sm:grid-cols-2 xl:grid-cols-3 2xl:grid-cols-5">
+            {isNonEmptyTrimmed(buyer.company_id) ? (
+              <ShowcaseSection title="Company ID" {...SHOWCASE_CENTERED_BODY}>
+                <span className="font-medium text-dark dark:text-white">{buyer.company_id}</span>
+              </ShowcaseSection>
+            ) : null}
+            {isValidHttpUrl(buyer.website_uri) ? (
+              <ShowcaseSection title="Buyer website" {...SHOWCASE_CENTERED_BODY}>
+                <Link
+                  href={buyer.website_uri!.trim()}
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  className="break-all font-medium text-primary underline-offset-4 hover:underline"
+                >
+                  {buyer.website_uri!.trim()}
+                </Link>
+              </ShowcaseSection>
+            ) : null}
+            {isNonEmptyTrimmed(buyer.contact_name) ? (
+              <ShowcaseSection title="Contact name" {...SHOWCASE_CENTERED_BODY}>
+                <span className="font-medium text-dark dark:text-white">
+                  {buyer.contact_name}
+                </span>
+              </ShowcaseSection>
+            ) : null}
+            {isNonEmptyTrimmed(buyer.contact_telephone) ? (
+              <ShowcaseSection title="Contact telephone" {...SHOWCASE_CENTERED_BODY}>
+                <span className="font-medium text-dark dark:text-white">
+                  {buyer.contact_telephone}
+                </span>
+              </ShowcaseSection>
+            ) : null}
+            {isNonEmptyTrimmed(buyer.contact_email) ? (
+              <ShowcaseSection title="Contact email" {...SHOWCASE_CENTERED_BODY}>
+                <a
+                  href={`mailto:${buyer.contact_email!.trim()}`}
+                  className="break-all font-medium text-primary underline-offset-4 hover:underline"
+                >
+                  {buyer.contact_email!.trim()}
+                </a>
+              </ShowcaseSection>
+            ) : null}
+            {buyerAddressLines.length > 0 ? (
+              <ShowcaseSection
+                title="Address"
+                rootClassName={cn(
+                  SHOWCASE_CENTERED_BODY.rootClassName,
+                  "sm:col-span-2 xl:col-span-2 2xl:col-span-3",
+                )}
+                className="text-start"
+              >
+                <address className="not-italic">
+                  {buyerAddressLines.map((line, i) => (
+                    <div
+                      key={`${line}-${i}`}
+                      className="text-sm font-medium text-dark dark:text-white"
+                    >
+                      {line}
+                    </div>
+                  ))}
+                </address>
+              </ShowcaseSection>
+            ) : null}
+          </div>
+        </div>
+      ) : null}
     </div>
   );
 }

src/app/tenders/[details]/components/tender-timeline-section.tsx

@@ -1,12 +1,21 @@
 import { ShowcaseSection } from "@/components/Layouts/showcase-section";
 import type { TTenderDetails } from "@/lib/api/types/Tenders";
-import { truncateString, unixToDate } from "@/utils/shared";
+import { isoStringToDate, truncateString, unixToDate } from "@/utils/shared";
 import Link from "next/link";
 import {
   HEADER_SCROLL_MARGIN,
   SHOWCASE_CENTERED_BODY,
   TENDER_SECTION_IDS,
 } from "../constants";
+import {
+  hasAddressContent,
+  hasWinningTendererContent,
+  isNonEmptyTrimmed,
+  isValidHttpUrl,
+  isValidIsoDateTimeString,
+  isValidPositiveUnix,
+  shouldShowExternalLinksBlock,
+} from "../tender-display-utils";
 import { ExternalLinkIcon } from "./external-link-icon";
 import { SectionHeading } from "./section-heading";
 
@@ -14,58 +23,212 @@ type TenderTimelineSectionProps = {
   tender: TTenderDetails;
 };
 
+function formatWinnerAddress(tender: TTenderDetails): string[] {
+  const w = tender.winning_tenderer;
+  if (!w?.address || !hasAddressContent(w.address)) return [];
+  const a = w.address;
+  const lines: string[] = [];
+  if (isNonEmptyTrimmed(a.street_name)) lines.push(a.street_name!.trim());
+  const cityLine = [a.postal_zone, a.city_name]
+    .map((s) => s?.trim())
+    .filter(Boolean)
+    .join(" ");
+  if (cityLine) lines.push(cityLine);
+  const tail = [a.country_subentity_code, a.country_code]
+    .map((s) => s?.trim())
+    .filter(Boolean)
+    .join(" · ");
+  if (tail) lines.push(tail);
+  return lines;
+}
+
 export function TenderTimelineSection({ tender }: TenderTimelineSectionProps) {
   const submissionUrl = tender.submission_url?.trim();
+  const dispatchIso = tender.notice_dispatch_date_with_timezone?.trim();
+  const dispatchLabel = isValidIsoDateTimeString(dispatchIso)
+    ? isoStringToDate({ isoString: dispatchIso!, hasTime: true })
+    : isValidPositiveUnix(tender.notice_dispatch_at)
+      ? unixToDate({
+          unix: tender.notice_dispatch_at!,
+          hasTime: true,
+        })
+      : null;
+
+  const winnerName = tender.winning_tenderer?.name?.trim();
+  const winnerLines = formatWinnerAddress(tender);
+  const showWinnerBlock =
+    hasWinningTendererContent(tender) &&
+    (Boolean(winnerName) || winnerLines.length > 0);
+
+  const showSubmissionUrl = Boolean(submissionUrl) && isValidHttpUrl(submissionUrl);
+  const showExternal = shouldShowExternalLinksBlock(tender);
+
+  const deadlineCards = [
+    {
+      key: "application",
+      title: "Application deadline",
+      unix: tender.application_deadline,
+    },
+    {
+      key: "publication",
+      title: "Publication date",
+      unix: tender.publication_date,
+    },
+    {
+      key: "submission",
+      title: "Submission deadline",
+      unix: tender.submission_deadline,
+    },
+    {
+      key: "tender",
+      title: "Tender deadline",
+      unix: tender.tender_deadline,
+    },
+  ].filter((d) => isValidPositiveUnix(d.unix));
 
   return (
     <div id={TENDER_SECTION_IDS.timeline} className={HEADER_SCROLL_MARGIN}>
       <SectionHeading>Timeline</SectionHeading>
       <div className="grid gap-4 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-5">
-        <ShowcaseSection title="Application deadline" {...SHOWCASE_CENTERED_BODY}>
+        {isValidPositiveUnix(tender.award_date) ? (
-          <time className="font-medium tabular-nums text-dark dark:text-white">
+          <ShowcaseSection title="Award date" {...SHOWCASE_CENTERED_BODY}>
-            {unixToDate({
+            <time className="font-medium tabular-nums text-dark dark:text-white">
-              unix: tender.application_deadline ?? 0,
+              {unixToDate({
-              hasTime: true,
+                unix: tender.award_date!,
-            })}
+                hasTime: true,
-          </time>
+              })}
-        </ShowcaseSection>
+            </time>
-        <ShowcaseSection title="Publication date" {...SHOWCASE_CENTERED_BODY}>
+          </ShowcaseSection>
-          <time className="font-medium tabular-nums text-dark dark:text-white">
+        ) : null}
-            {unixToDate({
+
-              unix: tender.publication_date ?? 0,
+        {showWinnerBlock ? (
-              hasTime: true,
+          <ShowcaseSection
-            })}
+            title="Winning tenderer"
-          </time>
+            rootClassName="sm:col-span-2 lg:col-span-3 xl:col-span-5"
-        </ShowcaseSection>
+            className="text-start"
-        <ShowcaseSection title="Submission deadline" {...SHOWCASE_CENTERED_BODY}>
+          >
-          <time className="font-medium tabular-nums text-dark dark:text-white">
+            {winnerName ? (
-            {unixToDate({
+              <p className="font-medium text-dark dark:text-white">{winnerName}</p>
-              unix: tender.submission_deadline ?? 0,
+            ) : null}
-              hasTime: true,
+            {winnerLines.length > 0 ? (
-            })}
+              <div className={winnerName ? "mt-2 space-y-1" : "space-y-1"}>
-          </time>
+                {winnerLines.map((line, i) => (
-        </ShowcaseSection>
+                  <p
-        <ShowcaseSection title="Tender deadline" {...SHOWCASE_CENTERED_BODY}>
+                    key={`w-${i}`}
-          <time className="font-medium tabular-nums text-dark dark:text-white">
+                    className="text-sm text-dark dark:text-white/90"
-            {unixToDate({
+                  >
-              unix: tender.tender_deadline ?? 0,
+                    {line}
-              hasTime: true,
+                  </p>
-            })}
+                ))}
-          </time>
+              </div>
-        </ShowcaseSection>
+            ) : null}
-        {submissionUrl && (
+          </ShowcaseSection>
+        ) : null}
+
+        {dispatchLabel ? (
+          <ShowcaseSection title="Notice dispatch" {...SHOWCASE_CENTERED_BODY}>
+            <time className="font-medium tabular-nums text-dark dark:text-white">
+              {dispatchLabel}
+            </time>
+          </ShowcaseSection>
+        ) : null}
+
+        {isValidPositiveUnix(tender.issue_date) ? (
+          <ShowcaseSection title="Issue date" {...SHOWCASE_CENTERED_BODY}>
+            <time className="font-medium tabular-nums text-dark dark:text-white">
+              {unixToDate({
+                unix: tender.issue_date!,
+                hasTime: false,
+              })}
+            </time>
+          </ShowcaseSection>
+        ) : null}
+
+        {isValidPositiveUnix(tender.issue_time) ? (
+          <ShowcaseSection title="Issue time" {...SHOWCASE_CENTERED_BODY}>
+            <time className="font-medium tabular-nums text-dark dark:text-white">
+              {unixToDate({
+                unix: tender.issue_time!,
+                hasTime: true,
+              })}
+            </time>
+          </ShowcaseSection>
+        ) : null}
+
+        {deadlineCards.map((d) => (
+          <ShowcaseSection key={d.key} title={d.title} {...SHOWCASE_CENTERED_BODY}>
+            <time className="font-medium tabular-nums text-dark dark:text-white">
+              {unixToDate({
+                unix: d.unix as number,
+                hasTime: true,
+              })}
+            </time>
+          </ShowcaseSection>
+        ))}
+
+        {showSubmissionUrl ? (
           <ShowcaseSection title="Submission URL" {...SHOWCASE_CENTERED_BODY}>
             <Link
-              href={submissionUrl}
+              href={submissionUrl!}
               target="_blank"
               rel="noopener noreferrer"
               className="inline-flex max-w-full items-center gap-1.5 break-all font-medium text-primary underline-offset-4 hover:underline"
             >
               <ExternalLinkIcon className="shrink-0" />
-              {truncateString(submissionUrl, 42)}
+              {truncateString(submissionUrl!, 42)}
             </Link>
           </ShowcaseSection>
-        )}
+        ) : null}
+
+        {showExternal ? (
+          <ShowcaseSection
+            title="External links"
+            rootClassName="sm:col-span-2 lg:col-span-3 xl:col-span-5"
+            className="text-start"
+          >
+            <ul className="flex flex-col gap-2">
+              {isValidHttpUrl(tender.document_url) ? (
+                <li>
+                  <Link
+                    href={tender.document_url!.trim()}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="inline-flex items-center gap-1.5 break-all font-medium text-primary underline-offset-4 hover:underline"
+                  >
+                    <ExternalLinkIcon className="shrink-0" />
+                    Document (TED)
+                  </Link>
+                </li>
+              ) : null}
+              {isValidHttpUrl(tender.tender_url) ? (
+                <li>
+                  <Link
+                    href={tender.tender_url!.trim()}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="inline-flex items-center gap-1.5 break-all font-medium text-primary underline-offset-4 hover:underline"
+                  >
+                    <ExternalLinkIcon className="shrink-0" />
+                    {truncateString(tender.tender_url!.trim(), 56)}
+                  </Link>
+                </li>
+              ) : null}
+              {isValidHttpUrl(tender.buyer_profile_url) ? (
+                <li>
+                  <Link
+                    href={tender.buyer_profile_url!.trim()}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    className="inline-flex items-center gap-1.5 break-all font-medium text-primary underline-offset-4 hover:underline"
+                  >
+                    <ExternalLinkIcon className="shrink-0" />
+                    Buyer profile
+                  </Link>
+                </li>
+              ) : null}
+            </ul>
+          </ShowcaseSection>
+        ) : null}
       </div>
     </div>
   );

src/app/tenders/[details]/components/tender-translation-section.tsx

@@ -1,5 +1,9 @@
 import type { TTenderDetails } from "@/lib/api/types/Tenders";
 import { HEADER_SCROLL_MARGIN, TENDER_SECTION_IDS } from "../constants";
+import {
+  isNonEmptyTrimmed,
+  shouldShowTranslationSection,
+} from "../tender-display-utils";
 import { SectionHeading } from "./section-heading";
 
 type TenderTranslationSectionProps = {
@@ -9,18 +13,33 @@ type TenderTranslationSectionProps = {
 export function TenderTranslationSection({
   tender,
 }: TenderTranslationSectionProps) {
+  if (!shouldShowTranslationSection(tender)) return null;
+
+  const showNoticeLang = isNonEmptyTrimmed(tender.notice_language_code);
+  const showResolved = isNonEmptyTrimmed(tender.language);
+
   return (
     <div id={TENDER_SECTION_IDS.translation} className={HEADER_SCROLL_MARGIN}>
       <SectionHeading>Translation</SectionHeading>
       <div className="grid gap-4 sm:grid-cols-2">
-        <div className="rounded-2xl border border-stroke/60 bg-gray-2/40 p-6 shadow-inner dark:border-dark-3 dark:bg-dark-3/30">
+        {showNoticeLang ? (
-          <p className="mb-2 text-xs font-semibold uppercase tracking-wide text-dark-5 dark:text-dark-6">
+          <div className="rounded-2xl border border-stroke/60 bg-gray-2/40 p-6 shadow-inner dark:border-dark-3 dark:bg-dark-3/30">
-            Resolved language
+            <p className="mb-2 text-xs font-semibold uppercase tracking-wide text-dark-5 dark:text-dark-6">
-          </p>
+              Notice language
-          <p className="text-sm text-dark dark:text-white">
+            </p>
-            {tender.language || "original"}
+            <p className="text-sm text-dark dark:text-white">
-          </p>
+              {tender.notice_language_code}
-        </div>
+            </p>
+          </div>
+        ) : null}
+        {showResolved ? (
+          <div className="rounded-2xl border border-stroke/60 bg-gray-2/40 p-6 shadow-inner dark:border-dark-3 dark:bg-dark-3/30">
+            <p className="mb-2 text-xs font-semibold uppercase tracking-wide text-dark-5 dark:text-dark-6">
+              Resolved language
+            </p>
+            <p className="text-sm text-dark dark:text-white">{tender.language}</p>
+          </div>
+        ) : null}
       </div>
     </div>
   );

src/app/tenders/[details]/constants.ts

@@ -7,6 +7,7 @@ export const TENDER_HEADER_ACTIONS_RESERVE_PX = 360;
 
 export const TENDER_SECTION_IDS = {
   procurement: "tender-section-procurement",
+  lots: "tender-section-lots",
   timeline: "tender-section-timeline",
   location: "tender-section-location",
   translation: "tender-section-translation",

src/app/tenders/[details]/page.tsx

@@ -8,6 +8,7 @@ import {
   useTenderDetailQuery,
   useTranslateTenderMutation,
 } from "@/hooks/queries";
+import type { TTenderDetails } from "@/lib/api/types/Tenders";
 import { usePathname, useRouter, useSearchParams } from "next/navigation";
 import { use, useCallback, useMemo } from "react";
 import { TenderDetailsContent } from "./components/tender-details-content";
@@ -93,7 +94,7 @@ const TenderDetails = ({ params }: IProps) => {
     return <TenderDetailsError breadcrumbItems={breadcrumbItems} />;
   }
 
-  const tender = data!.data;
+  const tender: TTenderDetails = data!.data;
 
   return (
     <>

src/app/tenders/[details]/tender-display-utils.ts

@@ -0,0 +1,105 @@
+import type { TTenderAddress, TTenderDetails } from "@/lib/api/types/Tenders";
+
+export function isNonEmptyTrimmed(value: string | undefined | null): boolean {
+  return Boolean(value?.trim());
+}
+
+export function isValidPositiveUnix(value: number | undefined | null): boolean {
+  return typeof value === "number" && Number.isFinite(value) && value > 0;
+}
+
+export function isValidHttpUrl(value: string | undefined | null): boolean {
+  const t = value?.trim();
+  if (!t) return false;
+  try {
+    const u = new URL(t);
+    return u.protocol === "http:" || u.protocol === "https:";
+  } catch {
+    return false;
+  }
+}
+
+export function isValidIsoDateTimeString(
+  value: string | undefined | null,
+): boolean {
+  const t = value?.trim();
+  if (!t) return false;
+  const ms = Date.parse(t);
+  return Number.isFinite(ms);
+}
+
+export function hasAddressContent(addr: TTenderAddress | undefined): boolean {
+  if (!addr) return false;
+  return (
+    isNonEmptyTrimmed(addr.street_name) ||
+    isNonEmptyTrimmed(addr.city_name) ||
+    isNonEmptyTrimmed(addr.postal_zone) ||
+    isNonEmptyTrimmed(addr.country_subentity_code) ||
+    isNonEmptyTrimmed(addr.country_code)
+  );
+}
+
+export function hasWinningTendererContent(tender: TTenderDetails): boolean {
+  const w = tender.winning_tenderer;
+  if (!w) return false;
+  if (isNonEmptyTrimmed(w.name)) return true;
+  return hasAddressContent(w.address);
+}
+
+export function shouldShowLotsSection(tender: TTenderDetails): boolean {
+  const lots = tender.lots ?? [];
+  return lots.some(
+    (lot) =>
+      isNonEmptyTrimmed(lot.lot_id) ||
+      isNonEmptyTrimmed(lot.title) ||
+      isNonEmptyTrimmed(lot.description) ||
+      isNonEmptyTrimmed(lot.main_nature_of_contract) ||
+      isNonEmptyTrimmed(lot.main_classification) ||
+      isNonEmptyTrimmed(lot.main_classification_display) ||
+      (typeof lot.estimated_value === "number" &&
+        Number.isFinite(lot.estimated_value) &&
+        lot.estimated_value > 0) ||
+      isNonEmptyTrimmed(lot.currency),
+  );
+}
+
+export function hasBuyerExtendedDetails(tender: TTenderDetails): boolean {
+  const b = tender.buyer_organization;
+  return (
+    isNonEmptyTrimmed(b.company_id) ||
+    isValidHttpUrl(b.website_uri) ||
+    isNonEmptyTrimmed(b.contact_name) ||
+    isNonEmptyTrimmed(b.contact_telephone) ||
+    isNonEmptyTrimmed(b.contact_email) ||
+    hasAddressContent(b.address)
+  );
+}
+
+export function shouldShowDescriptionSection(tender: TTenderDetails): boolean {
+  return isNonEmptyTrimmed(tender.description);
+}
+
+export function shouldShowTranslationSection(tender: TTenderDetails): boolean {
+  return (
+    isNonEmptyTrimmed(tender.language) ||
+    isNonEmptyTrimmed(tender.notice_language_code)
+  );
+}
+
+export function shouldShowAiSummarySection(tender: TTenderDetails): boolean {
+  return isNonEmptyTrimmed(tender.overall_summary);
+}
+
+export function shouldShowExternalLinksBlock(tender: TTenderDetails): boolean {
+  return (
+    isValidHttpUrl(tender.document_url) ||
+    isValidHttpUrl(tender.tender_url) ||
+    isValidHttpUrl(tender.buyer_profile_url)
+  );
+}
+
+export function isValidRegionCode(code: string | undefined | null): boolean {
+  const t = code?.trim() ?? "";
+  if (t.length < 2) return false;
+  return /^[A-Z0-9]{2,10}$/i.test(t);
+}

src/app/tenders/[details]/tender-nav-utils.ts

@@ -1,6 +1,13 @@
 import type { TTenderDetails } from "@/lib/api/types/Tenders";
 import { TENDER_SECTION_IDS } from "./constants";
 import type { TenderNavItem } from "./types";
+import {
+  isValidRegionCode,
+  shouldShowAiSummarySection,
+  shouldShowDescriptionSection,
+  shouldShowLotsSection,
+  shouldShowTranslationSection,
+} from "./tender-display-utils";
 
 export const isValidDisplayCountryCode = (code: string) =>
   /^[A-Za-z]{2,3}$/.test(code);
@@ -14,7 +21,8 @@ function analyzeLocationVisibility(tender: TTenderDetails) {
     typeof tender.estimated_value === "number" &&
     Number.isFinite(tender.estimated_value) &&
     tender.estimated_value > 0;
-  const showLocation = hasCountry || hasCurrency || hasEst;
+  const hasRegion = isValidRegionCode(tender.region_code);
+  const showLocation = hasCountry || hasCurrency || hasEst || hasRegion;
   return { showLocation };
 }
 
@@ -27,22 +35,29 @@ export function getTenderNavItems(
 
   const items: TenderNavItem[] = [
     { id: TENDER_SECTION_IDS.procurement, label: "Procurement" },
-    { id: TENDER_SECTION_IDS.timeline, label: "Timeline" },
   ];
+  if (shouldShowLotsSection(tender)) {
+    items.push({ id: TENDER_SECTION_IDS.lots, label: "Lots" });
+  }
+  items.push({ id: TENDER_SECTION_IDS.timeline, label: "Timeline" });
   if (showLocation) {
     items.push({
       id: TENDER_SECTION_IDS.location,
       label: "Location & currency",
     });
   }
-  items.push({ id: TENDER_SECTION_IDS.translation, label: "Translation" });
+  if (shouldShowTranslationSection(tender)) {
+    items.push({ id: TENDER_SECTION_IDS.translation, label: "Translation" });
+  }
   if (showDocuments) {
     items.push({ id: TENDER_SECTION_IDS.documents, label: "Documents" });
   }
-  items.push(
+  if (shouldShowDescriptionSection(tender)) {
-    { id: TENDER_SECTION_IDS.description, label: "Description" },
+    items.push({ id: TENDER_SECTION_IDS.description, label: "Description" });
-    { id: TENDER_SECTION_IDS.aiSummary, label: "AI summary" },
+  }
-  );
+  if (shouldShowAiSummarySection(tender)) {
+    items.push({ id: TENDER_SECTION_IDS.aiSummary, label: "AI summary" });
+  }
   return items;
 }
 

src/lib/api/types/Tenders.ts

@@ -1,37 +1,111 @@
 import { z } from "zod";
 
-export const TenderSchema = z.object({
+/** TED / eForms notice address block */
-  id: z.string(),
+export const TenderAddressSchema = z
-  buyer_organization: z.object({
+  .object({
-    name: z.string(),
+    street_name: z.string().optional(),
-  }),
+    city_name: z.string().optional(),
-  application_deadline: z.number(),
+    postal_zone: z.string().optional(),
-  country_code: z.string(),
+    country_subentity_code: z.string().optional(),
-  currency: z.string(),
+    country_code: z.string().optional(),
-  description: z.string(),
+  })
-  duration: z.string(),
+  .passthrough();
-  duration_unit: z.string(),
+
-  estimated_value: z.number(),
+export type TTenderAddress = z.infer<typeof TenderAddressSchema>;
-  notice_publication_id: z.string(),
+
-  /** Related TED notice publication IDs (e.g. modifications, same procedure). */
+export const BuyerOrganizationSchema = z
-  related_notice_publication_ids: z.array(z.string()).optional(),
+  .object({
-  /** TED form / notice type code (e.g. can-modif). */
+    name: z.string().default(""),
-  notice_type_code: z.string().optional(),
+    company_id: z.string().optional(),
-  /** Primary CPV classification code. */
+    website_uri: z.string().optional(),
-  main_classification: z.string().optional(),
+    contact_name: z.string().optional(),
-  procedure_code: z.string(),
+    contact_telephone: z.string().optional(),
-  procurement_type_code: z.string(),
+    contact_email: z.string().optional(),
-  publication_date: z.number(),
+    address: TenderAddressSchema.optional(),
-  status: z.string(),
+  })
-  submission_deadline: z.number(),
+  .passthrough();
-  submission_url: z.string(),
+
-  tender_deadline: z.number(),
+export type TBuyerOrganization = z.infer<typeof BuyerOrganizationSchema>;
-  created_at: z.number().optional(),
+
-  tender_id: z.string(),
+export const WinningTendererSchema = z
-  title: z.string(),
+  .object({
-  language: z.string().optional(),
+    name: z.string().optional(),
-  overall_summary: z.string().optional(),
+    address: TenderAddressSchema.optional(),
-});
+  })
+  .passthrough();
+
+export type TWinningTenderer = z.infer<typeof WinningTendererSchema>;
+
+export const TenderLotSchema = z
+  .object({
+    lot_id: z.string().optional(),
+    title: z.string().optional(),
+    description: z.string().optional(),
+    main_nature_of_contract: z.string().optional(),
+    main_classification: z.string().optional(),
+    main_classification_display: z.string().optional(),
+    estimated_value: z.number().optional(),
+    currency: z.string().optional(),
+  })
+  .passthrough();
+
+export type TTenderLot = z.infer<typeof TenderLotSchema>;
+
+export const TenderSchema = z
+  .object({
+    id: z.string(),
+    notice_publication_id: z.string(),
+    /** Related TED notice publication IDs (e.g. modifications, same procedure). */
+    related_notice_publication_ids: z.array(z.string()).optional(),
+    contract_folder_id: z.string().optional(),
+    procurement_project_id: z.string().optional(),
+    contract_notice_id: z.string().optional(),
+    notice_type_code: z.string().optional(),
+    form_type: z.string().optional(),
+    notice_sub_type_code: z.string().optional(),
+    notice_identifier: z.string().optional(),
+    notice_version: z.string().optional(),
+    notice_language_code: z.string().optional(),
+    gazette_id: z.string().optional(),
+    notice_dispatch_at: z.number().optional(),
+    notice_dispatch_date_with_timezone: z.string().optional(),
+    issue_date: z.number().optional(),
+    issue_time: z.number().optional(),
+    title: z.string(),
+    description: z.string(),
+    procurement_type_code: z.string(),
+    procedure_code: z.string(),
+    main_classification: z.string().optional(),
+    main_classification_display: z.string().optional(),
+    estimated_value: z.number(),
+    currency: z.string(),
+    estimated_value_vat_basis: z.string().optional(),
+    duration: z.string().optional(),
+    duration_unit: z.string().optional(),
+    publication_date: z.number(),
+    tender_deadline: z.number(),
+    submission_deadline: z.number(),
+    application_deadline: z.number(),
+    submission_url: z.string(),
+    country_code: z.string(),
+    region_code: z.string().optional(),
+    document_url: z.string().optional(),
+    tender_url: z.string().optional(),
+    buyer_profile_url: z.string().optional(),
+    buyer_organization: BuyerOrganizationSchema,
+    winning_tenderer: WinningTendererSchema.optional(),
+    lots: z.array(TenderLotSchema).optional(),
+    award_date: z.number().optional(),
+    status: z.string(),
+    source: z.string().optional(),
+    tender_id: z.string(),
+    project_name: z.string().optional(),
+    created_at: z.number().optional(),
+    /** Resolved / UI language (may come from translation pipeline). */
+    language: z.string().optional(),
+    overall_summary: z.string().optional(),
+  })
+  .passthrough();
 
 export const TenderDocumentsResponseSchema = z.object({
   filename: z.string(),