diff --git a/ui/rpki-explorer/src/app/App.tsx b/ui/rpki-explorer/src/app/App.tsx
index 69ceb9b..4d571c4 100644
--- a/ui/rpki-explorer/src/app/App.tsx
+++ b/ui/rpki-explorer/src/app/App.tsx
@@ -1,9 +1,13 @@
 import { Activity, Braces, Database, FileSearch, GitBranch, Home, PackageOpen, ShieldCheck } from "lucide-react";
+import type { LucideIcon } from "lucide-react";
 import { useState } from "react";
 import { Shell } from "../components/layout/Shell";
 import { ObjectDetailPage } from "../features/object-detail/ObjectDetailPage";
 import { OverviewPage } from "../features/overview/OverviewPage";
 import { RepositoriesPage } from "../features/repositories/RepositoriesPage";
+import { createRepositoryBrowserState } from "../features/repositories/repositoryBrowserState";
+
+type ViewId = "overview" | "repositories" | "publication-points" | "objects" | "validation" | "exports" | "runs" | "api";
 
 const navigationItems = [
   { id: "overview", label: "Overview", icon: Home },
@@ -14,22 +18,86 @@ const navigationItems = [
   { id: "exports", label: "Exports", icon: PackageOpen },
   { id: "runs", label: "Runs", icon: Activity },
   { id: "api", label: "API", icon: FileSearch }
-];
+] satisfies Array<{ id: ViewId; label: string; icon: LucideIcon }>;
+
+const comingSoonCopy: Record<Exclude<ViewId, "overview" | "repositories" | "objects">, { title: string; description: string; alternative: string }> = {
+  "publication-points": {
+    title: "Publication Points",
+    description: "Dedicated publication point analytics are not implemented yet.",
+    alternative: "Use Repositories to drill down from repository to publication point and object rows."
+  },
+  validation: {
+    title: "Validation",
+    description: "A dedicated validation investigation workspace is planned but not available in this MVP.",
+    alternative: "Use Overview for reason summaries and Object Detail for per-object validation evidence."
+  },
+  exports: {
+    title: "Exports",
+    description: "A standalone export job browser is planned but not available yet.",
+    alternative: "Use Object Detail to trigger object or publication point export workflows."
+  },
+  runs: {
+    title: "Runs",
+    description: "Historical run navigation is not implemented in the current Explorer UI.",
+    alternative: "The current view always uses the latest indexed run from query service."
+  },
+  api: {
+    title: "API",
+    description: "The API reference page is planned but not implemented yet.",
+    alternative: "Use the project README and query service endpoints while the UI reference page is pending."
+  }
+};
 
 export function App() {
-  const [activeView, setActiveView] = useState("overview");
+  const [activeView, setActiveView] = useState<ViewId>("overview");
   const [selectedObjectInstanceId, setSelectedObjectInstanceId] = useState<string | null>(null);
+  const [repositoryBrowserState, setRepositoryBrowserState] = useState(createRepositoryBrowserState);
 
   const openObject = (objectInstanceId: string) => {
     setSelectedObjectInstanceId(objectInstanceId);
     setActiveView("objects");
   };
 
+  const renderActiveView = () => {
+    if (activeView === "objects") {
+      return <ObjectDetailPage initialObjectInstanceId={selectedObjectInstanceId} />;
+    }
+    if (activeView === "repositories") {
+      return (
+        <RepositoriesPage
+          browserState={repositoryBrowserState}
+          onBrowserStateChange={setRepositoryBrowserState}
+          onOpenObject={openObject}
+        />
+      );
+    }
+    if (activeView === "overview") {
+      return <OverviewPage />;
+    }
+    return <ComingSoonPage {...comingSoonCopy[activeView]} />;
+  };
+
   return (
     <Shell activeView={activeView} navigationItems={navigationItems} onNavigate={setActiveView}>
-      {activeView === "objects" ? <ObjectDetailPage initialObjectInstanceId={selectedObjectInstanceId} /> : null}
-      {activeView === "repositories" ? <RepositoriesPage onOpenObject={openObject} /> : null}
-      {activeView !== "objects" && activeView !== "repositories" ? <OverviewPage /> : null}
+      {renderActiveView()}
     </Shell>
   );
 }
+
+function ComingSoonPage({ title, description, alternative }: { title: string; description: string; alternative: string }) {
+  return (
+    <section className="page-stack" aria-labelledby="coming-soon-heading">
+      <div className="hero-dashboard compact-hero coming-soon-panel">
+        <div>
+          <p className="eyebrow">Planned workspace</p>
+          <h2 id="coming-soon-heading">{title}</h2>
+          <p>{description}</p>
+        </div>
+        <div className="hero-status muted-status">
+          <strong>Coming soon</strong>
+          <span>{alternative}</span>
+        </div>
+      </div>
+    </section>
+  );
+}
diff --git a/ui/rpki-explorer/src/components/common/CopyableValue.tsx b/ui/rpki-explorer/src/components/common/CopyableValue.tsx
new file mode 100644
index 0000000..c659830
--- /dev/null
+++ b/ui/rpki-explorer/src/components/common/CopyableValue.tsx
@@ -0,0 +1,88 @@
+import { Check, Copy } from "lucide-react";
+import { useEffect, useState } from "react";
+
+interface CopyableValueProps {
+  className?: string;
+  displayValue?: string;
+  label: string;
+  value: string;
+}
+
+interface TooltipPosition {
+  left: number;
+  top: number;
+}
+
+export function CopyableValue({ className, displayValue, label, value }: CopyableValueProps) {
+  const [copyState, setCopyState] = useState<"idle" | "copied" | "failed">("idle");
+  const [tooltipPosition, setTooltipPosition] = useState<TooltipPosition | null>(null);
+
+  useEffect(() => {
+    if (copyState === "idle") {
+      return;
+    }
+    const timeout = window.setTimeout(() => setCopyState("idle"), 1600);
+    return () => window.clearTimeout(timeout);
+  }, [copyState]);
+
+  const showTooltip = (target: HTMLElement) => {
+    const rect = target.getBoundingClientRect();
+    setTooltipPosition({
+      left: Math.min(window.innerWidth - 24, Math.max(24, rect.left + rect.width / 2)),
+      top: rect.top > 90 ? rect.top - 10 : rect.bottom + 10
+    });
+  };
+
+  const copy = async () => {
+    try {
+      await copyText(value);
+      setCopyState("copied");
+    } catch {
+      setCopyState("failed");
+    }
+  };
+
+  return (
+    <span className={`copyable-value ${className ?? ""}`} data-copy-state={copyState} data-copyable-label={label}>
+      <span
+        className="copyable-value-text"
+        onBlur={() => setTooltipPosition(null)}
+        onFocus={(event) => showTooltip(event.currentTarget)}
+        onMouseEnter={(event) => showTooltip(event.currentTarget)}
+        onMouseLeave={() => setTooltipPosition(null)}
+        tabIndex={0}
+        title={value}
+      >
+        {displayValue ?? value}
+      </span>
+      <button aria-label={`Copy ${label}`} className="copy-icon-button" onClick={copy} title={`Copy ${label}`} type="button">
+        {copyState === "copied" ? <Check aria-hidden="true" size={13} /> : <Copy aria-hidden="true" size={13} />}
+      </button>
+      {tooltipPosition ? (
+        <span className="copyable-tooltip" role="tooltip" style={{ left: tooltipPosition.left, top: tooltipPosition.top }}>
+          {value}
+        </span>
+      ) : null}
+      {copyState !== "idle" ? <span className="copy-state-text">{copyState === "copied" ? "Copied" : "Copy failed"}</span> : null}
+    </span>
+  );
+}
+
+async function copyText(value: string) {
+  if (navigator.clipboard) {
+    await navigator.clipboard.writeText(value);
+    return;
+  }
+  const textArea = document.createElement("textarea");
+  textArea.value = value;
+  textArea.style.position = "fixed";
+  textArea.style.opacity = "0";
+  document.body.appendChild(textArea);
+  textArea.focus();
+  textArea.select();
+  try {
+    document.execCommand("copy");
+  } finally {
+    document.body.removeChild(textArea);
+  }
+}
diff --git a/ui/rpki-explorer/src/components/common/CursorPager.tsx b/ui/rpki-explorer/src/components/common/CursorPager.tsx
new file mode 100644
index 0000000..e8265f5
--- /dev/null
+++ b/ui/rpki-explorer/src/components/common/CursorPager.tsx
@@ -0,0 +1,32 @@
+interface CursorPagerProps {
+  label?: string;
+  isFetching: boolean;
+  nextCursor: string | null;
+  onNext: () => void;
+  onPrevious: () => void;
+  pageNumber: number;
+  previousCount: number;
+  rangeLabel?: string;
+}
+
+export function CursorPager({
+  label,
+  isFetching,
+  nextCursor,
+  onNext,
+  onPrevious,
+  pageNumber,
+  previousCount,
+  rangeLabel
+}: CursorPagerProps) {
+  return (
+    <div className="cursor-pager" aria-label="Cursor pagination">
+      <button disabled={isFetching || previousCount === 0} onClick={onPrevious} type="button">Previous</button>
+      <span>
+        {label ?? `Page ${pageNumber}`}
+        {rangeLabel ? <small>{rangeLabel}</small> : null}
+      </span>
+      <button disabled={isFetching || !nextCursor} onClick={onNext} type="button">Next</button>
+    </div>
+  );
+}
diff --git a/ui/rpki-explorer/src/components/common/cursorPaging.ts b/ui/rpki-explorer/src/components/common/cursorPaging.ts
new file mode 100644
index 0000000..3b547a9
--- /dev/null
+++ b/ui/rpki-explorer/src/components/common/cursorPaging.ts
@@ -0,0 +1,24 @@
+export interface PageState {
+  cursor: string | null;
+  previous: Array<string | null>;
+}
+
+export function advancePage(page: PageState, nextCursor: string | null): PageState {
+  if (!nextCursor) {
+    return page;
+  }
+  return {
+    cursor: nextCursor,
+    previous: [...page.previous, page.cursor]
+  };
+}
+
+export function previousPage(page: PageState): PageState {
+  if (page.previous.length === 0) {
+    return page;
+  }
+  return {
+    cursor: page.previous[page.previous.length - 1] ?? null,
+    previous: page.previous.slice(0, -1)
+  };
+}
diff --git a/ui/rpki-explorer/src/components/layout/Shell.tsx b/ui/rpki-explorer/src/components/layout/Shell.tsx
index 4cac951..35e8257 100644
--- a/ui/rpki-explorer/src/components/layout/Shell.tsx
+++ b/ui/rpki-explorer/src/components/layout/Shell.tsx
@@ -1,26 +1,29 @@
 import type { LucideIcon } from "lucide-react";
-import { BarChart3, ChevronDown, CircleHelp, Search, Sun } from "lucide-react";
+import { PanelLeftClose, PanelLeftOpen, Search } from "lucide-react";
 import type { PropsWithChildren } from "react";
+import { useState } from "react";
 
-export interface NavigationItem {
-  id: string;
+export interface NavigationItem<Id extends string = string> {
+  id: Id;
   label: string;
   icon: LucideIcon;
 }
 
-interface ShellProps extends PropsWithChildren {
-  activeView: string;
-  navigationItems: NavigationItem[];
-  onNavigate: (id: string) => void;
+interface ShellProps<Id extends string> extends PropsWithChildren {
+  activeView: Id;
+  navigationItems: Array<NavigationItem<Id>>;
+  onNavigate: (id: Id) => void;
 }
 
-export function Shell({ activeView, navigationItems, onNavigate, children }: ShellProps) {
+export function Shell<Id extends string>({ activeView, navigationItems, onNavigate, children }: ShellProps<Id>) {
+  const [isSidebarCollapsed, setIsSidebarCollapsed] = useState(false);
+
   return (
-    <div className="app-shell">
+    <div className={`app-shell ${isSidebarCollapsed ? "sidebar-collapsed" : ""}`}>
       <aside className="sidebar" aria-label="Primary navigation">
         <div className="brand">
           <div className="brand-mark">R</div>
-          <div>
+          <div className="brand-copy">
             <h1 className="brand-title">RPKI Explorer</h1>
             <div className="brand-subtitle">Validation Intelligence</div>
           </div>
@@ -29,9 +32,11 @@ export function Shell({ activeView, navigationItems, onNavigate, children }: She
           {navigationItems.map((item) => (
             <button
               aria-current={activeView === item.id ? "page" : undefined}
+              aria-label={isSidebarCollapsed ? item.label : undefined}
               className={`nav-item ${activeView === item.id ? "active" : ""}`}
               key={item.id}
               onClick={() => onNavigate(item.id)}
+              title={isSidebarCollapsed ? item.label : undefined}
               type="button"
             >
               <item.icon aria-hidden="true" size={18} />
@@ -39,24 +44,31 @@ export function Shell({ activeView, navigationItems, onNavigate, children }: She
             </button>
           ))}
         </nav>
+        <button
+          aria-expanded={!isSidebarCollapsed}
+          aria-label={isSidebarCollapsed ? "Expand navigation" : "Collapse navigation"}
+          className="sidebar-toggle"
+          onClick={() => setIsSidebarCollapsed((collapsed) => !collapsed)}
+          title={isSidebarCollapsed ? "Expand navigation" : "Collapse navigation"}
+          type="button"
+        >
+          {isSidebarCollapsed ? <PanelLeftOpen aria-hidden="true" size={18} /> : <PanelLeftClose aria-hidden="true" size={18} />}
+          <span>{isSidebarCollapsed ? "Expand" : "Collapse"}</span>
+        </button>
       </aside>
       <main className="main-panel">
         <header className="topbar">
-          <div className="run-selector" aria-label="Current run">
+          <div className="run-selector readonly-run" aria-label="Current run">
             <span>Run</span>
-            <strong>latest run</strong>
-            <ChevronDown aria-hidden="true" size={16} />
+            <strong>latest indexed run</strong>
           </div>
           <div className="topbar-actions">
             <label className="search-box">
               <Search aria-hidden="true" size={18} />
-              <span className="sr-only">Search URI or hash</span>
-              <input placeholder="Search URI / hash / ASN / prefix…" />
+              <span className="sr-only">Exact object URI search is not active yet</span>
+              <input disabled placeholder="Exact URI lookup planned in M2" />
             </label>
-            <div className="ready-pill"><span /> Ready</div>
-            <button aria-label="Help" className="icon-button" type="button"><CircleHelp size={19} /></button>
-            <button aria-label="Theme" className="icon-button" type="button"><Sun size={19} /></button>
-            <button aria-label="Analytics" className="icon-button" type="button"><BarChart3 size={19} /></button>
+            <div className="ready-pill"><span /> UI Ready</div>
           </div>
         </header>
         {children}
diff --git a/ui/rpki-explorer/src/features/object-detail/ObjectDetailPage.tsx b/ui/rpki-explorer/src/features/object-detail/ObjectDetailPage.tsx
index 6be8291..9520734 100644
--- a/ui/rpki-explorer/src/features/object-detail/ObjectDetailPage.tsx
+++ b/ui/rpki-explorer/src/features/object-detail/ObjectDetailPage.tsx
@@ -2,6 +2,7 @@ import { useMutation, useQuery } from "@tanstack/react-query";
 import { Check, Copy, Download, FileText, GitBranch, Loader2, Search, ShieldCheck } from "lucide-react";
 import { useEffect, useMemo, useState } from "react";
 import { normalizeApiError } from "../../api/client";
+import { CopyableValue } from "../../components/common/CopyableValue";
 import {
   createObjectSetExport,
   createPublicationPointExport,
@@ -14,7 +15,6 @@ import {
   getObjectParsed,
   getObjectValidation,
   listManifestFiles,
-  listObjectsForPublicationPoint,
   listRevokedCertificates,
   type ChainEdgeRecord,
   type ObjectInstanceRecord,
@@ -22,7 +22,6 @@ import {
   type ValidationExplainRecord
 } from "../../api/queryService";
 
-const SAMPLE_PP_ID = "node_10342";
 const tabs = ["Parsed", "Validation", "Chain", "Manifest files", "Revoked certs"] as const;
 type ObjectTab = (typeof tabs)[number];
 
@@ -33,30 +32,16 @@ interface ObjectDetailPageProps {
 export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPageProps) {
   const [selectedObjectInstanceId, setSelectedObjectInstanceId] = useState<string | null>(initialObjectInstanceId ?? null);
   const [activeTab, setActiveTab] = useState<ObjectTab>("Validation");
+  const [copyState, setCopyState] = useState<"idle" | "copied" | "failed">("idle");
   const [searchUri, setSearchUri] = useState("");
   const latestRunQuery = useQuery({ queryKey: ["object-detail-latest-run"], queryFn: getLatestRun });
   const runId = latestRunQuery.data?.data.runId ?? "latest";
-  const objectsQuery = useQuery({
-    enabled: Boolean(latestRunQuery.data?.data.runId),
-    queryKey: ["object-detail-sample-objects", runId, SAMPLE_PP_ID],
-    queryFn: () => listObjectsForPublicationPoint(runId, SAMPLE_PP_ID, 50),
-    staleTime: 5 * 60 * 1000
-  });
-
-  const objectRows = useMemo(() => objectsQuery.data?.data ?? [], [objectsQuery.data?.data]);
-  const objectOptions = useMemo(
-    () => objectRows.map((object) => ({
-      object,
-      label: `${labelObjectType(object.objectType)} ${shortName(object.uri)}`
-    })),
-    [objectRows]
-  );
   useEffect(() => {
-    if (!selectedObjectInstanceId && objectRows.length > 0) {
-      const preferred = objectRows.find((item) => item.objectType === "manifest") ?? objectRows[0];
-      setSelectedObjectInstanceId(preferred.objectInstanceId);
+    if (initialObjectInstanceId && initialObjectInstanceId !== selectedObjectInstanceId) {
+      setSelectedObjectInstanceId(initialObjectInstanceId);
+      setActiveTab("Validation");
     }
-  }, [objectRows, selectedObjectInstanceId]);
+  }, [initialObjectInstanceId, selectedObjectInstanceId]);
 
   const objectQuery = useQuery({
     enabled: Boolean(selectedObjectInstanceId && latestRunQuery.data?.data.runId),
@@ -64,6 +49,7 @@ export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPagePr
     queryFn: () => getObject(runId, selectedObjectInstanceId ?? ""),
     staleTime: 5 * 60 * 1000
   });
+  const selectedObject = objectQuery.data?.data ?? null;
   const validationQuery = useQuery({
     enabled: Boolean(selectedObjectInstanceId && latestRunQuery.data?.data.runId),
     queryKey: ["object-detail-validation", runId, selectedObjectInstanceId],
@@ -113,44 +99,43 @@ export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPagePr
     mutationFn: () => createObjectSetExport(runId, selectedObjectInstanceId ? [selectedObjectInstanceId] : [])
   });
   const ppExportMutation = useMutation({
-    mutationFn: () => createPublicationPointExport(runId, selectedObject?.ppId ?? SAMPLE_PP_ID)
+    mutationFn: () => {
+      if (!selectedObject?.ppId) {
+        throw new Error("No publication point selected");
+      }
+      return createPublicationPointExport(runId, selectedObject.ppId);
+    }
   });
 
-  const selectedObject = objectQuery.data?.data ?? objectRows.find((item) => item.objectInstanceId === selectedObjectInstanceId) ?? null;
+  useEffect(() => {
+    if (copyState === "idle") {
+      return;
+    }
+    const timeout = window.setTimeout(() => setCopyState("idle"), 1800);
+    return () => window.clearTimeout(timeout);
+  }, [copyState]);
+
+  const copySelectedUri = async () => {
+    if (!selectedObject?.uri) {
+      return;
+    }
+    try {
+      await navigator.clipboard.writeText(selectedObject.uri);
+      setCopyState("copied");
+    } catch {
+      setCopyState("failed");
+    }
+  };
+
   const validation = validationQuery.data?.data ?? null;
-  const apiError = latestRunQuery.error ?? objectsQuery.error ?? objectQuery.error ?? validationQuery.error;
+  const apiError = latestRunQuery.error ?? objectQuery.error ?? validationQuery.error;
 
   return (
     <section className="page-stack object-page" aria-labelledby="object-detail-heading">
       {apiError ? <ErrorBanner error={apiError} /> : null}
-      <div className="object-layout live-object-layout">
-        <aside className="repository-tree" aria-label="Publication point object list">
-          <p className="eyebrow">Live object list</p>
-          <h3>sakuya.nat.moe sample PP</h3>
-          <div className="tree-node root">{latestRunQuery.data?.data.runId ?? "Loading run"}</div>
-          {objectsQuery.isFetching ? <LoadingLine label="Loading PP objects..." /> : null}
-          <div className="object-picker-list">
-            {objectOptions.map(({ object, label }) => (
-              <button
-                className={`tree-node nested object-picker ${object.objectInstanceId === selectedObjectInstanceId ? "current" : ""}`}
-                key={object.objectInstanceId}
-                onClick={() => {
-                  setSelectedObjectInstanceId(object.objectInstanceId);
-                  setActiveTab("Validation");
-                  explainMutation.reset();
-                }}
-                type="button"
-              >
-                <strong>{object.objectType}</strong>
-                <span>{label}</span>
-              </button>
-            ))}
-          </div>
-        </aside>
-
-        <div className="object-main">
-          <section className="object-browser" aria-label="Publication point object table">
-            <div className="browser-toolbar">
+      <div className="object-detail-only-layout">
+          <aside className="object-detail-card object-detail-card-expanded" aria-label="Live object detail">
+            <div className="object-detail-toolbar">
               <form
                 className="search-box object-uri-search"
                 onSubmit={(event) => {
@@ -168,53 +153,30 @@ export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPagePr
                   value={searchUri}
                 />
               </form>
-              <button className="filter-pill" type="button" onClick={() => selectedObject && setSearchUri(selectedObject.uri)}>Use selected URI</button>
-              <strong>{objectRows.length} objects</strong>
+              <button className="filter-pill" disabled={!selectedObject?.uri} type="button" onClick={() => selectedObject && setSearchUri(selectedObject.uri)}>Use selected URI</button>
+              <strong>{selectedObject ? `${labelObjectType(selectedObject.objectType)} selected` : "No object selected"}</strong>
             </div>
-            <table>
-              <thead>
-                <tr>
-                  <th>Type</th>
-                  <th>URI</th>
-                  <th>Hash (SHA-256)</th>
-                  <th>Source</th>
-                  <th>Status</th>
-                </tr>
-              </thead>
-              <tbody>
-                {objectRows.map((object) => (
-                  <tr
-                    className={object.objectInstanceId === selectedObjectInstanceId ? "object-row-active" : ""}
-                    key={object.objectInstanceId}
-                    onClick={() => setSelectedObjectInstanceId(object.objectInstanceId)}
-                  >
-                    <td><span className="object-type">{labelObjectType(object.objectType)}</span></td>
-                    <td className="uri-cell">{object.uri}</td>
-                    <td>{object.sha256.slice(0, 16)}...</td>
-                    <td>{object.sourceSection}</td>
-                    <td><StatusPill state={object.rejected ? "rejected" : object.result} /></td>
-                  </tr>
-                ))}
-              </tbody>
-            </table>
-          </section>
-
-          <aside className="object-detail-card" aria-label="Live object detail">
+            {!selectedObjectInstanceId ? <div className="empty-state">Search an exact URI or open an object from Repository Browser.</div> : null}
+            {selectedObjectInstanceId && objectQuery.isFetching ? <LoadingLine label="Loading selected object..." /> : null}
             <div className="object-hero">
               <div>
                 <p className="eyebrow">Object detail · live query service</p>
                 <h2 id="object-detail-heading">{selectedObject ? labelObjectType(selectedObject.objectType) : "Object"} object</h2>
-                <p>{selectedObject?.uri ?? "Select an object from the publication point list."}</p>
+                {selectedObject ? (
+                  <p><CopyableValue className="inline-copyable" label="selected object URI" value={selectedObject.uri} /></p>
+                ) : (
+                  <p>Select an object from the publication point list.</p>
+                )}
               </div>
               <div className="object-actions">
                 <StatusPill state={validation?.finalStatus ?? selectedObject?.result ?? "loading"} />
-                <button className="ghost-button" type="button">
-                  <Copy size={16} /> Copy URI
+                <button className="ghost-button" disabled={!selectedObject?.uri} onClick={copySelectedUri} type="button">
+                  <Copy size={16} /> {copyState === "copied" ? "Copied" : copyState === "failed" ? "Copy failed" : "Copy URI"}
                 </button>
-                <button className="ghost-button" onClick={() => objectExportMutation.mutate()} type="button">
+                <button className="ghost-button" disabled={!selectedObjectInstanceId} onClick={() => objectExportMutation.mutate()} type="button">
                   <FileText size={16} /> Export object
                 </button>
-                <button className="primary-button" onClick={() => rawDownloadMutation.mutate()} type="button">
+                <button className="primary-button" disabled={!selectedObjectInstanceId} onClick={() => rawDownloadMutation.mutate()} type="button">
                   <Download size={16} /> Download raw
                 </button>
               </div>
@@ -232,19 +194,32 @@ export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPagePr
               searchPending={uriSearchMutation.isPending}
             />
             <div className="object-actions inline-actions">
-              <button className="ghost-button" onClick={() => ppExportMutation.mutate()} type="button">
+              <button className="ghost-button" disabled={!selectedObject?.ppId} onClick={() => ppExportMutation.mutate()} type="button">
                 <FileText size={16} /> Export selected PP
               </button>
             </div>
 
-            <div className="tabs" role="tablist" aria-label="Object detail tabs">
+            <div className="tabs" role="tablist" aria-label="Object detail tabs" onKeyDown={(event) => {
+              if (event.key !== "ArrowLeft" && event.key !== "ArrowRight") {
+                return;
+              }
+              event.preventDefault();
+              const currentIndex = tabs.indexOf(activeTab);
+              const nextIndex = event.key === "ArrowRight"
+                ? (currentIndex + 1) % tabs.length
+                : (currentIndex - 1 + tabs.length) % tabs.length;
+              setActiveTab(tabs[nextIndex]);
+            }}>
               {tabs.map((tab) => (
                 <button
+                  aria-controls={`object-tabpanel-${tabId(tab)}`}
                   aria-selected={activeTab === tab}
                   className={activeTab === tab ? "active" : ""}
+                  id={`object-tab-${tabId(tab)}`}
                   key={tab}
                   onClick={() => setActiveTab(tab)}
                   role="tab"
+                  tabIndex={activeTab === tab ? 0 : -1}
                   type="button"
                 >
                   {tab}
@@ -252,7 +227,12 @@ export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPagePr
               ))}
             </div>
 
-            <div className="object-content-grid">
+            <div
+              aria-labelledby={`object-tab-${tabId(activeTab)}`}
+              className="object-content-grid"
+              id={`object-tabpanel-${tabId(activeTab)}`}
+              role="tabpanel"
+            >
               {activeTab === "Parsed" ? <ParsedPanel parsed={parsedQuery.data?.data ?? null} isFetching={parsedQuery.isFetching} error={parsedQuery.error} /> : null}
               {activeTab === "Validation" ? (
                 <ValidationPanel validation={validation} isFetching={validationQuery.isFetching} explain={explainMutation.data?.data ?? null} explainPending={explainMutation.isPending} onExplain={() => explainMutation.mutate()} explainError={explainMutation.error} />
@@ -262,7 +242,6 @@ export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPagePr
               {activeTab === "Revoked certs" ? <ArrayPanel title="Revoked certificates" rows={revokedCertsQuery.data?.data ?? []} isFetching={revokedCertsQuery.isFetching} error={revokedCertsQuery.error} /> : null}
             </div>
           </aside>
-        </div>
       </div>
     </section>
   );
@@ -271,10 +250,10 @@ export function ObjectDetailPage({ initialObjectInstanceId }: ObjectDetailPagePr
 function ObjectMeta({ object, validation }: { object: ObjectInstanceRecord; validation: ObjectValidationRecord | null }) {
   return (
     <div className="object-meta-grid">
-      <Meta label="SHA256" value={object.sha256} />
+      <Meta label="SHA256" value={object.sha256} copyable />
       <Meta label="Source" value={object.sourceSection} />
-      <Meta label="Repository" value={object.repoId} />
-      <Meta label="Publication Point" value={object.ppId} />
+      <Meta label="Repository" value={object.repoId} copyable />
+      <Meta label="Publication Point" value={object.ppId} copyable />
       <Meta label="Audit Result" value={validation?.auditResult ?? object.result} />
       <Meta label="Authoritative" value={validation ? String(validation.authoritative) : "loading"} />
     </div>
@@ -398,7 +377,7 @@ function ChainPanel({ edges, isFetching, error }: { edges: ChainEdgeRecord[]; is
           <div className="chain-node" key={`${edge.relation}-${edge.toUri}`}>
             <strong>{edge.relation}</strong>
             <span>{edge.status}</span>
-            <code>{edge.toUri}</code>
+            <code><CopyableValue label="chain edge URI" value={edge.toUri} /></code>
           </div>
         ))}
       </div>
@@ -498,11 +477,11 @@ function LoadingLine({ label }: { label: string }) {
   );
 }
 
-function Meta({ label, value }: { label: string; value: string }) {
+function Meta({ copyable, label, value }: { copyable?: boolean; label: string; value: string }) {
   return (
     <div className="meta-item">
       <span>{label}</span>
-      <strong>{value}</strong>
+      <strong>{copyable ? <CopyableValue label={label} value={value} /> : value}</strong>
     </div>
   );
 }
@@ -518,8 +497,8 @@ function labelObjectType(type: string) {
   return labels[type] ?? type.toUpperCase();
 }
 
-function shortName(uri: string) {
-  return uri.split("/").filter(Boolean).at(-1) ?? uri;
+function tabId(tab: ObjectTab) {
+  return tab.toLowerCase().replaceAll(" ", "-");
 }
 
 function issuesText(issues: { summary?: string }[] | undefined) {
diff --git a/ui/rpki-explorer/src/features/overview/OverviewPage.tsx b/ui/rpki-explorer/src/features/overview/OverviewPage.tsx
index d4b585a..33bdc7c 100644
--- a/ui/rpki-explorer/src/features/overview/OverviewPage.tsx
+++ b/ui/rpki-explorer/src/features/overview/OverviewPage.tsx
@@ -12,6 +12,7 @@ import {
   type RunRecord
 } from "../../api/queryService";
 import { normalizeApiError } from "../../api/client";
+import { CopyableValue } from "../../components/common/CopyableValue";
 
 const validationColors = ["#0ca678", "#facc15", "#e11d48", "#94a3b8"];
 const objectTypeLabels: Record<string, string> = {
@@ -58,7 +59,7 @@ export function OverviewPage() {
   const objectRows = objectTypesQuery.data?.data ? objectRowsFromStats(objectTypesQuery.data.data) : objectTypeRows;
   const validationRows = validationQuery.data?.data ? validationRowsFromStats(validationQuery.data.data) : validationSlices;
   const validPercent = percent(validationQuery.data?.data?.ok ?? validationRows[0]?.value ?? 0, sumValues(validationQuery.data?.data) || 100);
-  const repoRows = reposQuery.data?.data ? reposFromApi(reposQuery.data.data) : topRepositories;
+  const repoRows = reposQuery.data?.data ? reposFromApi(reposQuery.data.data) : reposFromFixtures();
   const issueRows = reasonsQuery.data?.data ? issuesFromReasons(reasonsQuery.data.data) : validationIssues;
   const statusText = liveRun ? statusForRun(liveRun) : "Static fixture";
   const statusSubtext = liveRun ? `run ${liveRun.runSeq ?? liveRun.runId} · ${formatDuration(liveRun.wallMs)}` : "query service not connected";
@@ -172,7 +173,7 @@ export function OverviewPage() {
             </thead>
             <tbody>
               {repoRows.map((repo) => (
-                <tr key={repo.host}>
+                <tr key={repo.id}>
                   <td>{repo.host}</td>
                   <td>{repo.transport}</td>
                   <td>{repo.duration}</td>
@@ -202,7 +203,7 @@ export function OverviewPage() {
                   <strong>{issue.type}</strong>
                 </div>
                 <p>{issue.reason}</p>
-                <code>{issue.uri}</code>
+                <code><CopyableValue label="issue URI" value={issue.uri} /></code>
                 <small>{issue.repo}</small>
               </article>
             ))}
@@ -253,6 +254,7 @@ function reposFromApi(repos: RepositoryRecord[]) {
     .slice(0, 6)
     .map((repo) => ({
       host: repo.host,
+      id: repo.repoId,
       transport: repo.transport.toUpperCase(),
       duration: formatDuration(repo.syncDurationMsTotal),
       objects: formatNumber(repo.objects),
@@ -260,6 +262,17 @@ function reposFromApi(repos: RepositoryRecord[]) {
     }));
 }
 
+function reposFromFixtures() {
+  return topRepositories.map((repo, index) => ({
+    ...repo,
+    id: fallbackRepoId(repo, index)
+  }));
+}
+
+function fallbackRepoId(repo: { host: string; transport: string; duration: string; objects: string }, index: number) {
+  return `${repo.host}-${repo.transport}-${repo.duration}-${repo.objects}-${index}`;
+}
+
 function issuesFromReasons(reasons: CountsByKey) {
   const entries = Object.entries(reasons).sort(([, left], [, right]) => right - left);
   if (entries.length === 0) {
diff --git a/ui/rpki-explorer/src/features/repositories/RepositoriesPage.tsx b/ui/rpki-explorer/src/features/repositories/RepositoriesPage.tsx
index 2e4676f..87d52e0 100644
--- a/ui/rpki-explorer/src/features/repositories/RepositoriesPage.tsx
+++ b/ui/rpki-explorer/src/features/repositories/RepositoriesPage.tsx
@@ -1,51 +1,101 @@
 import { useQuery } from "@tanstack/react-query";
-import { ChevronRight, Database, FileCode2, GitBranch, Loader2 } from "lucide-react";
-import type { ReactNode } from "react";
-import { useState } from "react";
+import { ChevronRight, Database, FileCode2, GitBranch, Loader2, PanelLeftClose, PanelRightClose } from "lucide-react";
+import type { Dispatch, ReactNode, SetStateAction } from "react";
+import { useMemo } from "react";
+import { CopyableValue } from "../../components/common/CopyableValue";
+import { CursorPager } from "../../components/common/CursorPager";
+import { advancePage, previousPage, type PageState } from "../../components/common/cursorPaging";
+import { createEmptyPageState, type RepositoryBrowserState } from "./repositoryBrowserState";
 import {
   getLatestRun,
   listObjectsForPublicationPoint,
   listPublicationPointsForRepo,
   listRepos,
-  type ObjectInstanceRecord
+  type ObjectInstanceRecord,
+  type PublicationPointRecord,
+  type RepositoryRecord
 } from "../../api/queryService";
 import { normalizeApiError } from "../../api/client";
 
+const REPO_PAGE_SIZE = 50;
+const PP_PAGE_SIZE = 50;
+const OBJECT_PAGE_SIZE = 50;
+
 interface RepositoriesPageProps {
+  browserState: RepositoryBrowserState;
+  onBrowserStateChange: Dispatch<SetStateAction<RepositoryBrowserState>>;
   onOpenObject?: (objectInstanceId: string) => void;
 }
 
-export function RepositoriesPage({ onOpenObject }: RepositoriesPageProps) {
-  const [selectedRepoId, setSelectedRepoId] = useState<string | null>(null);
-  const [selectedPpId, setSelectedPpId] = useState<string | null>(null);
+export function RepositoriesPage({ browserState, onBrowserStateChange, onOpenObject }: RepositoriesPageProps) {
+  const {
+    selectedRepoId,
+    selectedPpId,
+    repoFilter,
+    ppFilter,
+    objectFilter,
+    repoPage,
+    ppPage,
+    objectPage,
+    isRepoPanelCollapsed,
+    isPpPanelCollapsed
+  } = browserState;
+  const setRepoFilter = (value: string) => onBrowserStateChange((state) => ({ ...state, repoFilter: value }));
+  const setPpFilter = (value: string) => onBrowserStateChange((state) => ({ ...state, ppFilter: value }));
+  const setObjectFilter = (value: string) => onBrowserStateChange((state) => ({ ...state, objectFilter: value }));
+  const setRepoPage = (updater: SetStateAction<PageState>) => {
+    onBrowserStateChange((state) => ({
+      ...state,
+      repoPage: typeof updater === "function" ? updater(state.repoPage) : updater
+    }));
+  };
+  const setPpPage = (updater: SetStateAction<PageState>) => {
+    onBrowserStateChange((state) => ({
+      ...state,
+      ppPage: typeof updater === "function" ? updater(state.ppPage) : updater
+    }));
+  };
+  const setObjectPage = (updater: SetStateAction<PageState>) => {
+    onBrowserStateChange((state) => ({
+      ...state,
+      objectPage: typeof updater === "function" ? updater(state.objectPage) : updater
+    }));
+  };
   const latestRunQuery = useQuery({
     queryKey: ["repositories-latest-run"],
     queryFn: getLatestRun
   });
   const runId = latestRunQuery.data?.data.runId ?? "latest";
   const reposQuery = useQuery({
-    queryKey: ["repositories", runId],
-    queryFn: () => listRepos(runId, 50),
+    queryKey: ["repositories", runId, repoPage.cursor],
+    queryFn: () => listRepos(runId, REPO_PAGE_SIZE, repoPage.cursor),
     enabled: Boolean(latestRunQuery.data?.data.runId)
   });
 
-  const repos = reposQuery.data?.data ?? [];
+  const repos = useMemo(() => reposQuery.data?.data ?? [], [reposQuery.data?.data]);
+  const filteredRepos = useMemo(() => filterRepositories(repos, repoFilter), [repoFilter, repos]);
   const selectedRepo = selectedRepoId ? repos.find((repo) => repo.repoId === selectedRepoId) ?? null : null;
   const ppsQuery = useQuery({
-    queryKey: ["repository-publication-points", runId, selectedRepo?.repoId ?? ""],
-    queryFn: () => listPublicationPointsForRepo(runId, selectedRepo?.repoId ?? "", 50),
+    queryKey: ["repository-publication-points", runId, selectedRepo?.repoId ?? "", ppPage.cursor],
+    queryFn: () => listPublicationPointsForRepo(runId, selectedRepo?.repoId ?? "", PP_PAGE_SIZE, ppPage.cursor),
     enabled: Boolean(selectedRepo?.repoId)
   });
 
-  const publicationPoints = ppsQuery.data?.data ?? [];
+  const publicationPoints = useMemo(() => ppsQuery.data?.data ?? [], [ppsQuery.data?.data]);
+  const filteredPublicationPoints = useMemo(() => filterPublicationPoints(publicationPoints, ppFilter), [ppFilter, publicationPoints]);
   const selectedPp = selectedPpId
     ? publicationPoints.find((pp) => pp.ppId === selectedPpId) ?? null
     : null;
   const objectsQuery = useQuery({
-    queryKey: ["publication-point-objects", runId, selectedPp?.ppId ?? ""],
-    queryFn: () => listObjectsForPublicationPoint(runId, selectedPp?.ppId ?? "", 50),
+    queryKey: ["publication-point-objects", runId, selectedPp?.ppId ?? "", objectPage.cursor],
+    queryFn: () => listObjectsForPublicationPoint(runId, selectedPp?.ppId ?? "", OBJECT_PAGE_SIZE, objectPage.cursor),
     enabled: Boolean(selectedPp?.ppId)
   });
+  const objects = useMemo(() => objectsQuery.data?.data ?? [], [objectsQuery.data?.data]);
+  const filteredObjects = useMemo(() => filterObjects(objects, objectFilter), [objectFilter, objects]);
+  const repoTotal = reposQuery.data?.page?.nextCursor ? undefined : repoPage.previous.length * REPO_PAGE_SIZE + repos.length;
+  const ppTotal = selectedRepo?.publicationPoints;
+  const objectTotal = selectedPp?.objects;
 
   const error = latestRunQuery.error ?? reposQuery.error ?? ppsQuery.error ?? objectsQuery.error;
 
@@ -73,97 +123,239 @@ export function RepositoriesPage({ onOpenObject }: RepositoriesPageProps) {
         </div>
       ) : null}
 
-      <div className="repo-browser-grid">
-        <section className="panel list-panel" aria-label="Repositories">
-          <PanelTitle icon={<Database size={18} />} label="Repositories" meta={reposQuery.isFetching ? "loading" : `${repos.length} shown`} />
+      <div className={`repo-browser-grid ${isRepoPanelCollapsed ? "repo-panel-collapsed" : ""} ${isPpPanelCollapsed ? "pp-panel-collapsed" : ""}`}>
+        <section className="panel list-panel collapsible-list-panel repo-list-panel" aria-label="Repositories">
+          <PanelTitle
+            icon={<Database size={18} />}
+            isCollapsed={isRepoPanelCollapsed}
+            label="Repositories"
+            meta={reposQuery.isFetching ? "loading" : rangeLabel(repoPage.previous.length + 1, REPO_PAGE_SIZE, repos.length, repoTotal, repoFilter, filteredRepos.length)}
+            onToggleCollapse={() => onBrowserStateChange((state) => ({ ...state, isRepoPanelCollapsed: !state.isRepoPanelCollapsed }))}
+            toggleLabel={isRepoPanelCollapsed ? "Expand repositories column" : "Collapse repositories column"}
+          />
+          {isRepoPanelCollapsed ? (
+            <CollapsedPanelSummary icon={<Database size={20} />} label="Repositories" value={repoTotal ?? repos.length} />
+          ) : (
+            <>
+          <CurrentPageFilter
+            label="Filter repositories on current page"
+            onChange={setRepoFilter}
+            placeholder="Filter host or URI..."
+            value={repoFilter}
+          />
           <div className="stack-list">
-            {repos.map((repo) => (
-              <button
-                className={`stack-row ${repo.repoId === selectedRepo?.repoId ? "active" : ""}`}
-                key={repo.repoId}
-                onClick={() => {
-                  setSelectedRepoId(repo.repoId);
-                  setSelectedPpId(null);
-                }}
-                type="button"
-              >
-                <span>
-                  <strong>{repo.host}</strong>
-                  <small>{repo.uri}</small>
-                </span>
-                <em>{repo.objects.toLocaleString()}</em>
-                <ChevronRight size={16} />
-              </button>
+            {filteredRepos.map((repo) => (
+              <article className={`stack-row ${repo.repoId === selectedRepo?.repoId ? "active" : ""}`} key={repo.repoId}>
+                <button
+                  className="stack-row-select"
+                  onClick={() => {
+                    onBrowserStateChange((state) => ({
+                      ...state,
+                      selectedRepoId: repo.repoId,
+                      selectedPpId: null,
+                      ppFilter: "",
+                      objectFilter: "",
+                      ppPage: createEmptyPageState(),
+                      objectPage: createEmptyPageState()
+                    }));
+                  }}
+                  type="button"
+                >
+                  <span>
+                    <strong>{repo.host}</strong>
+                    <small>{repo.transport.toUpperCase()} · {repo.publicationPoints.toLocaleString()} publication points</small>
+                  </span>
+                  <em>{repo.objects.toLocaleString()}</em>
+                  <ChevronRight size={16} />
+                </button>
+                <CopyableValue className="stack-row-copy" label="repository URI" value={repo.uri} />
+              </article>
             ))}
           </div>
+          <CursorPager
+            isFetching={reposQuery.isFetching}
+            pageNumber={repoPage.previous.length + 1}
+            nextCursor={reposQuery.data?.page?.nextCursor ?? null}
+            onNext={() => setRepoPage((page) => advancePage(page, reposQuery.data?.page?.nextCursor ?? null))}
+            onPrevious={() => setRepoPage(previousPage)}
+            previousCount={repoPage.previous.length}
+            rangeLabel={rangeLabel(repoPage.previous.length + 1, REPO_PAGE_SIZE, repos.length, repoTotal, repoFilter, filteredRepos.length)}
+          />
+            </>
+          )}
         </section>
 
-        <section className="panel list-panel" aria-label="Publication points">
+        <section className="panel list-panel collapsible-list-panel pp-list-panel" aria-label="Publication points">
           <PanelTitle
             icon={<GitBranch size={18} />}
+            isCollapsed={isPpPanelCollapsed}
             label="Publication Points"
-            meta={ppsQuery.isFetching ? "loading" : `${publicationPoints.length} shown`}
+            meta={ppsQuery.isFetching ? "loading" : selectedRepo ? rangeLabel(ppPage.previous.length + 1, PP_PAGE_SIZE, publicationPoints.length, ppTotal, ppFilter, filteredPublicationPoints.length) : "select repo"}
+            onToggleCollapse={() => onBrowserStateChange((state) => ({ ...state, isPpPanelCollapsed: !state.isPpPanelCollapsed }))}
+            toggleLabel={isPpPanelCollapsed ? "Expand publication points column" : "Collapse publication points column"}
           />
+          {isPpPanelCollapsed ? (
+            <CollapsedPanelSummary icon={<GitBranch size={20} />} label="Publication Points" value={ppTotal ?? publicationPoints.length} />
+          ) : (
+            <>
           {!selectedRepo ? (
             <div className="empty-state">Select a repository to load its publication points.</div>
           ) : null}
+          <CurrentPageFilter
+            disabled={!selectedRepo}
+            label="Filter publication points on current page"
+            onChange={setPpFilter}
+            placeholder="Filter manifest, rsync, source..."
+            value={ppFilter}
+          />
           {ppsQuery.isFetching ? <LoadingLine /> : null}
           <div className="stack-list">
-            {publicationPoints.map((pp) => (
-              <button
-                className={`stack-row ${pp.ppId === selectedPp?.ppId ? "active" : ""}`}
-                key={pp.ppId}
-                onClick={() => setSelectedPpId(pp.ppId)}
-                type="button"
-              >
-                <span>
-                  <strong>{shortName(pp.manifestRsyncUri ?? pp.publicationPointRsyncUri ?? pp.rrdpNotificationUri ?? pp.ppId)}</strong>
-                  <small>{pp.publicationPointRsyncUri ?? pp.rsyncBaseUri ?? pp.rrdpNotificationUri ?? "unknown"}</small>
-                </span>
-                <em>{pp.objects.toLocaleString()}</em>
-                <StatusPill state={pp.repoTerminalState ?? pp.source ?? "unknown"} />
-              </button>
+            {filteredPublicationPoints.map((pp) => (
+              <article className={`stack-row ${pp.ppId === selectedPp?.ppId ? "active" : ""}`} key={pp.ppId}>
+                <button
+                  className="stack-row-select"
+                  onClick={() => {
+                    onBrowserStateChange((state) => ({
+                      ...state,
+                      selectedPpId: pp.ppId,
+                      objectFilter: "",
+                      objectPage: createEmptyPageState()
+                    }));
+                  }}
+                  type="button"
+                >
+                  <span>
+                    <strong>{shortName(pp.manifestRsyncUri ?? pp.publicationPointRsyncUri ?? pp.rrdpNotificationUri ?? pp.ppId)}</strong>
+                    <small>{pp.repoSyncSource ?? pp.source ?? "unknown"} · {pp.ppId}</small>
+                  </span>
+                  <em>{pp.objects.toLocaleString()}</em>
+                  <StatusPill state={pp.repoTerminalState ?? pp.source ?? "unknown"} />
+                </button>
+                <CopyableValue className="stack-row-copy" label="publication point URI" value={pp.publicationPointRsyncUri ?? pp.rsyncBaseUri ?? pp.rrdpNotificationUri ?? pp.ppId} />
+                {pp.manifestRsyncUri ? <CopyableValue className="stack-row-copy secondary" label="manifest URI" value={pp.manifestRsyncUri} /> : null}
+              </article>
             ))}
           </div>
+          <CursorPager
+            isFetching={ppsQuery.isFetching}
+            nextCursor={ppsQuery.data?.page?.nextCursor ?? null}
+            onNext={() => setPpPage((page) => advancePage(page, ppsQuery.data?.page?.nextCursor ?? null))}
+            onPrevious={() => setPpPage(previousPage)}
+            pageNumber={ppPage.previous.length + 1}
+            previousCount={ppPage.previous.length}
+            rangeLabel={selectedRepo ? rangeLabel(ppPage.previous.length + 1, PP_PAGE_SIZE, publicationPoints.length, ppTotal, ppFilter, filteredPublicationPoints.length) : undefined}
+          />
+            </>
+          )}
         </section>
 
         <section className="panel table-panel objects-live-panel" aria-label="Objects for publication point">
           <PanelTitle
             icon={<FileCode2 size={18} />}
             label="Objects"
-            meta={objectsQuery.isFetching ? "loading" : `${objectsQuery.data?.data.length ?? 0} of selected PP`}
+            meta={objectsQuery.isFetching ? "loading" : selectedPp ? rangeLabel(objectPage.previous.length + 1, OBJECT_PAGE_SIZE, objects.length, objectTotal, objectFilter, filteredObjects.length) : "select PP"}
           />
           {!selectedPp ? (
             <div className="empty-state">Select a publication point to load its objects.</div>
           ) : null}
+          <CurrentPageFilter
+            disabled={!selectedPp}
+            label="Filter objects on current page"
+            onChange={setObjectFilter}
+            placeholder="Filter type, URI, hash, status..."
+            value={objectFilter}
+          />
           {objectsQuery.isFetching ? <LoadingLine /> : null}
           {selectedPp && !objectsQuery.isFetching ? (
-            <ObjectTable objects={objectsQuery.data?.data ?? []} onOpenObject={onOpenObject} />
+            <ObjectTable objects={filteredObjects} onOpenObject={onOpenObject} />
           ) : null}
-          <div className="pagination-note">
-            Default query uses <code>limit=50</code>. Next cursor: <code>{objectsQuery.data?.page?.nextCursor ?? "none"}</code>
-          </div>
+          <CursorPager
+            isFetching={objectsQuery.isFetching}
+            nextCursor={objectsQuery.data?.page?.nextCursor ?? null}
+            onNext={() => setObjectPage((page) => advancePage(page, objectsQuery.data?.page?.nextCursor ?? null))}
+            onPrevious={() => setObjectPage(previousPage)}
+            pageNumber={objectPage.previous.length + 1}
+            previousCount={objectPage.previous.length}
+            rangeLabel={selectedPp ? rangeLabel(objectPage.previous.length + 1, OBJECT_PAGE_SIZE, objects.length, objectTotal, objectFilter, filteredObjects.length) : undefined}
+          />
         </section>
       </div>
     </section>
   );
 }
 
-function PanelTitle({ icon, label, meta }: { icon: ReactNode; label: string; meta: string }) {
+function PanelTitle({
+  icon,
+  isCollapsed,
+  label,
+  meta,
+  onToggleCollapse,
+  toggleLabel
+}: {
+  icon: ReactNode;
+  isCollapsed?: boolean;
+  label: string;
+  meta: string;
+  onToggleCollapse?: () => void;
+  toggleLabel?: string;
+}) {
   return (
     <div className="panel-heading compact-heading">
       <div>
         <p className="eyebrow">{label}</p>
         <h3>{label}</h3>
       </div>
-      <span className="panel-meta">
-        {icon}
-        {meta}
-      </span>
+      <div className="panel-heading-actions">
+        <span className="panel-meta">
+          {icon}
+          {meta}
+        </span>
+        {onToggleCollapse ? (
+          <button aria-expanded={!isCollapsed} aria-label={toggleLabel} className="panel-collapse-button" onClick={onToggleCollapse} title={toggleLabel} type="button">
+            {isCollapsed ? <PanelRightClose aria-hidden="true" size={16} /> : <PanelLeftClose aria-hidden="true" size={16} />}
+          </button>
+        ) : null}
+      </div>
     </div>
   );
 }
 
+function CollapsedPanelSummary({ icon, label, value }: { icon: ReactNode; label: string; value: number }) {
+  return (
+    <div className="collapsed-panel-summary">
+      {icon}
+      <strong>{label}</strong>
+      <span>{value.toLocaleString()}</span>
+    </div>
+  );
+}
+
+function CurrentPageFilter({
+  disabled,
+  label,
+  onChange,
+  placeholder,
+  value
+}: {
+  disabled?: boolean;
+  label: string;
+  onChange: (value: string) => void;
+  placeholder: string;
+  value: string;
+}) {
+  return (
+    <label className="current-page-filter">
+      <span>{label}</span>
+      <input
+        disabled={disabled}
+        onChange={(event) => onChange(event.target.value)}
+        placeholder={placeholder}
+        value={value}
+      />
+    </label>
+  );
+}
+
 function ObjectTable({ objects, onOpenObject }: { objects: ObjectInstanceRecord[]; onOpenObject?: (objectInstanceId: string) => void }) {
   if (objects.length === 0) {
     return <div className="empty-state">No objects returned for this publication point.</div>;
@@ -184,8 +376,8 @@ function ObjectTable({ objects, onOpenObject }: { objects: ObjectInstanceRecord[
         {objects.map((object) => (
           <tr key={object.objectInstanceId}>
             <td><span className="object-type">{object.objectType}</span></td>
-            <td className="uri-cell">{object.uri}</td>
-            <td>{object.sha256.slice(0, 12)}...</td>
+            <td className="uri-cell"><CopyableValue label="object URI" value={object.uri} /></td>
+            <td><CopyableValue label="object SHA256" value={object.sha256} displayValue={shortHash(object.sha256, 12)} /></td>
             <td>{object.sourceSection}</td>
             <td><StatusPill state={object.rejected ? "rejected" : object.result} /></td>
             <td>
@@ -222,3 +414,54 @@ function LoadingLine() {
 function shortName(uri: string) {
   return uri.split("/").filter(Boolean).at(-1) ?? uri;
 }
+
+function shortHash(value: string, prefixLength: number) {
+  return `${value.slice(0, prefixLength)}...`;
+}
+
+function rangeLabel(pageNumber: number, pageSize: number, pageRowCount: number, total: number | undefined, filter: string, visibleRowCount = pageRowCount) {
+  const start = pageRowCount === 0 ? 0 : (pageNumber - 1) * pageSize + 1;
+  const end = pageRowCount === 0 ? 0 : start + pageRowCount - 1;
+  const totalText = total === undefined ? "unknown" : total.toLocaleString();
+  const filterText = filter.trim() ? ` · ${visibleRowCount.toLocaleString()}/${pageRowCount.toLocaleString()} matched on page` : "";
+  return `${start.toLocaleString()}-${end.toLocaleString()}/${totalText} shown${filterText}`;
+}
+
+function matchesNeedle(values: Array<string | number | null | undefined>, needle: string) {
+  const normalized = needle.trim().toLowerCase();
+  if (!normalized) {
+    return true;
+  }
+  return values.some((value) => String(value ?? "").toLowerCase().includes(normalized));
+}
+
+function filterRepositories(repos: RepositoryRecord[], filter: string) {
+  return repos.filter((repo) => matchesNeedle([repo.host, repo.uri, repo.transport, repo.objects, repo.rejectedObjects], filter));
+}
+
+function filterPublicationPoints(publicationPoints: PublicationPointRecord[], filter: string) {
+  return publicationPoints.filter((pp) => matchesNeedle([
+    pp.ppId,
+    pp.manifestRsyncUri,
+    pp.publicationPointRsyncUri,
+    pp.rsyncBaseUri,
+    pp.rrdpNotificationUri,
+    pp.source,
+    pp.repoSyncSource,
+    pp.repoTerminalState,
+    pp.objects,
+    pp.rejectedObjects
+  ], filter));
+}
+
+function filterObjects(objects: ObjectInstanceRecord[], filter: string) {
+  return objects.filter((object) => matchesNeedle([
+    object.objectType,
+    object.uri,
+    object.sha256,
+    object.sourceSection,
+    object.result,
+    object.rejectReason,
+    object.rejected ? "rejected" : "accepted"
+  ], filter));
+}
diff --git a/ui/rpki-explorer/src/features/repositories/repositoryBrowserState.ts b/ui/rpki-explorer/src/features/repositories/repositoryBrowserState.ts
new file mode 100644
index 0000000..304a3fe
--- /dev/null
+++ b/ui/rpki-explorer/src/features/repositories/repositoryBrowserState.ts
@@ -0,0 +1,33 @@
+import type { PageState } from "../../components/common/cursorPaging";
+
+export interface RepositoryBrowserState {
+  selectedRepoId: string | null;
+  selectedPpId: string | null;
+  repoFilter: string;
+  ppFilter: string;
+  objectFilter: string;
+  repoPage: PageState;
+  ppPage: PageState;
+  objectPage: PageState;
+  isRepoPanelCollapsed: boolean;
+  isPpPanelCollapsed: boolean;
+}
+
+export function createRepositoryBrowserState(): RepositoryBrowserState {
+  return {
+    selectedRepoId: null,
+    selectedPpId: null,
+    repoFilter: "",
+    ppFilter: "",
+    objectFilter: "",
+    repoPage: createEmptyPageState(),
+    ppPage: createEmptyPageState(),
+    objectPage: createEmptyPageState(),
+    isRepoPanelCollapsed: false,
+    isPpPanelCollapsed: false
+  };
+}
+
+export function createEmptyPageState(): PageState {
+  return { cursor: null, previous: [] };
+}
diff --git a/ui/rpki-explorer/src/styles/globals.css b/ui/rpki-explorer/src/styles/globals.css
index f8c75f9..decfced 100644
--- a/ui/rpki-explorer/src/styles/globals.css
+++ b/ui/rpki-explorer/src/styles/globals.css
@@ -15,6 +15,7 @@ body {
   margin: 0;
   min-width: 320px;
   min-height: 100vh;
+  overflow-x: hidden;
   background: #f7faff;
 }
 
@@ -38,12 +39,20 @@ input:focus-visible {
   grid-template-columns: 230px minmax(0, 1fr);
   min-height: 100vh;
   background: linear-gradient(180deg, #ffffff 0%, #f4f8fe 100%);
+  transition: grid-template-columns 180ms ease;
+}
+
+.app-shell.sidebar-collapsed {
+  grid-template-columns: 76px minmax(0, 1fr);
 }
 
 .sidebar {
   position: sticky;
+  display: flex;
+  flex-direction: column;
   top: 0;
   height: 100vh;
+  overflow: hidden;
   border-right: 1px solid #dbe4f0;
   background: rgba(255, 255, 255, 0.88);
   color: #10213f;
@@ -58,7 +67,13 @@ input:focus-visible {
   padding: 0 10px;
 }
 
+.brand-copy {
+  min-width: 0;
+  transition: opacity 160ms ease;
+}
+
 .brand-mark {
+  flex: 0 0 36px;
   display: grid;
   width: 36px;
   height: 36px;
@@ -85,6 +100,33 @@ input:focus-visible {
   text-transform: uppercase;
 }
 
+.sidebar-toggle {
+  display: flex;
+  width: 100%;
+  align-items: center;
+  justify-content: flex-start;
+  gap: 10px;
+  border: 1px solid #d2deee;
+  border-radius: 9px;
+  background: #ffffff;
+  color: #24466f;
+  font-weight: 800;
+  margin-top: auto;
+  padding: 9px 12px;
+  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
+}
+
+.sidebar-toggle:hover,
+.sidebar-toggle:focus-visible {
+  border-color: #b7d2fb;
+  background: #eaf3ff;
+  color: #0759d7;
+}
+
+.sidebar-toggle svg {
+  flex: 0 0 auto;
+}
+
 .eyebrow {
   margin-bottom: 8px;
   color: #60718e;
@@ -97,6 +139,7 @@ input:focus-visible {
 .nav-list {
   display: grid;
   gap: 8px;
+  margin-bottom: 16px;
 }
 
 .nav-item {
@@ -110,6 +153,7 @@ input:focus-visible {
   background: transparent;
   color: #122544;
   text-align: left;
+  transition: background 160ms ease, color 160ms ease;
 }
 
 .nav-item.active,
@@ -119,6 +163,7 @@ input:focus-visible {
 }
 
 .nav-item svg {
+  flex: 0 0 auto;
   color: #24466f;
 }
 
@@ -127,12 +172,51 @@ input:focus-visible {
   color: #0759d7;
 }
 
+.sidebar-collapsed .sidebar {
+  padding-inline: 12px;
+}
+
+.sidebar-collapsed .brand {
+  justify-content: center;
+  margin-bottom: 18px;
+  padding: 0;
+}
+
+.sidebar-collapsed .brand-copy,
+.sidebar-collapsed .nav-item span,
+.sidebar-collapsed .sidebar-toggle span {
+  position: absolute;
+  width: 1px;
+  height: 1px;
+  overflow: hidden;
+  clip: rect(0, 0, 0, 0);
+  white-space: nowrap;
+}
+
+.sidebar-collapsed .sidebar-toggle,
+.sidebar-collapsed .nav-item {
+  justify-content: center;
+  padding-inline: 0;
+}
+
+.sidebar-collapsed .sidebar-toggle {
+  width: 42px;
+  height: 42px;
+  margin-top: auto;
+  margin-inline: auto;
+}
+
+.sidebar-collapsed .nav-item {
+  height: 44px;
+}
+
 .main-panel {
   min-width: 0;
 }
 
 .topbar {
   display: flex;
+  min-width: 0;
   min-height: 76px;
   align-items: center;
   justify-content: space-between;
@@ -165,6 +249,7 @@ h3 {
   display: flex;
   align-items: center;
   gap: 18px;
+  max-width: 100%;
   min-width: 206px;
   border: 1px solid #d2deee;
   border-radius: 9px;
@@ -185,6 +270,7 @@ h3 {
 .topbar-actions {
   display: flex;
   flex: 1;
+  min-width: 0;
   align-items: center;
   justify-content: flex-end;
   gap: 14px;
@@ -194,6 +280,7 @@ h3 {
   display: flex;
   align-items: center;
   gap: 10px;
+  min-width: 0;
   width: min(740px, 100%);
   border: 1px solid #d2deee;
   border-radius: 9px;
@@ -265,6 +352,7 @@ h3 {
 
 .hero-dashboard {
   display: flex;
+  min-width: 0;
   align-items: center;
   justify-content: space-between;
   gap: 20px;
@@ -287,6 +375,7 @@ h3 {
 
 .hero-status {
   display: flex;
+  max-width: 100%;
   min-width: 230px;
   align-items: center;
   gap: 12px;
@@ -391,8 +480,9 @@ h3 {
 
 .dashboard-grid {
   display: grid;
-  grid-template-columns: minmax(360px, 0.96fr) minmax(420px, 1.04fr) minmax(360px, 0.92fr);
+  grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr) minmax(0, 0.92fr);
   gap: 16px;
+  min-width: 0;
 }
 
 .panel,
@@ -402,6 +492,7 @@ h3 {
 .tabs,
 .object-browser,
 .object-detail-card {
+  min-width: 0;
   border: 1px solid #dbe4f0;
   border-radius: 14px;
   background: white;
@@ -409,10 +500,15 @@ h3 {
 }
 
 .panel {
+  overflow-x: visible;
   min-width: 0;
   padding: 18px;
 }
 
+.table-panel {
+  overflow-x: auto;
+}
+
 .wide-panel {
   grid-column: span 2;
 }
@@ -438,16 +534,101 @@ h3 {
   font-weight: 800;
 }
 
+.panel-heading-actions {
+  display: inline-flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 8px;
+}
+
+.panel-collapse-button {
+  display: inline-grid;
+  width: 30px;
+  height: 30px;
+  place-items: center;
+  border: 1px solid #d2deee;
+  border-radius: 8px;
+  background: white;
+  color: #24466f;
+}
+
+.panel-collapse-button:hover,
+.panel-collapse-button:focus-visible {
+  border-color: #a9c8f6;
+  background: #eaf3ff;
+  color: #0759d7;
+}
+
 .repo-browser-grid {
   display: grid;
   grid-template-columns: minmax(300px, 0.85fr) minmax(340px, 1fr) minmax(520px, 1.35fr);
   gap: 16px;
+  min-width: 0;
+}
+
+.repo-browser-grid.repo-panel-collapsed {
+  grid-template-columns: 76px minmax(340px, 1fr) minmax(520px, 1.35fr);
+}
+
+.repo-browser-grid.pp-panel-collapsed {
+  grid-template-columns: minmax(300px, 0.85fr) 76px minmax(520px, 1.35fr);
+}
+
+.repo-browser-grid.repo-panel-collapsed.pp-panel-collapsed {
+  grid-template-columns: 76px 76px minmax(520px, 1fr);
 }
 
 .list-panel {
   min-height: 640px;
 }
 
+.collapsible-list-panel {
+  min-width: 0;
+}
+
+.repo-browser-grid.repo-panel-collapsed .repo-list-panel,
+.repo-browser-grid.pp-panel-collapsed .pp-list-panel {
+  padding: 12px;
+}
+
+.repo-browser-grid.repo-panel-collapsed .repo-list-panel .panel-heading,
+.repo-browser-grid.pp-panel-collapsed .pp-list-panel .panel-heading {
+  align-items: center;
+  flex-direction: column;
+}
+
+.repo-browser-grid.repo-panel-collapsed .repo-list-panel .panel-heading > div:first-child,
+.repo-browser-grid.pp-panel-collapsed .pp-list-panel .panel-heading > div:first-child,
+.repo-browser-grid.repo-panel-collapsed .repo-list-panel .panel-meta,
+.repo-browser-grid.pp-panel-collapsed .pp-list-panel .panel-meta {
+  display: none;
+}
+
+.collapsed-panel-summary {
+  display: grid;
+  min-height: 520px;
+  place-items: center;
+  align-content: center;
+  gap: 10px;
+  color: #24466f;
+  text-align: center;
+}
+
+.collapsed-panel-summary strong {
+  writing-mode: vertical-rl;
+  color: #07142d;
+  font-size: 13px;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+}
+
+.collapsed-panel-summary span {
+  color: #0759d7;
+  font-size: 12px;
+  font-weight: 850;
+}
+
 .stack-list {
   display: grid;
   gap: 8px;
@@ -458,9 +639,8 @@ h3 {
 
 .stack-row {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) auto auto;
-  gap: 10px;
-  align-items: center;
+  grid-template-columns: minmax(0, 1fr);
+  gap: 8px;
   width: 100%;
   border: 1px solid #e3ebf5;
   border-radius: 10px;
@@ -470,27 +650,40 @@ h3 {
   text-align: left;
 }
 
+.stack-row-select {
+  display: grid;
+  width: 100%;
+  grid-template-columns: minmax(0, 1fr) auto auto;
+  gap: 10px;
+  align-items: center;
+  border: 0;
+  background: transparent;
+  color: inherit;
+  padding: 0;
+  text-align: left;
+}
+
 .stack-row.active,
 .stack-row:hover {
   border-color: #b7d2fb;
   background: #eaf3ff;
 }
 
-.stack-row strong,
-.stack-row small {
+.stack-row-select strong,
+.stack-row-select small {
   display: block;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
-.stack-row small {
+.stack-row-select small {
   margin-top: 4px;
   color: #60718e;
   font-size: 12px;
 }
 
-.stack-row em {
+.stack-row-select em {
   color: #0759d7;
   font-size: 12px;
   font-style: normal;
@@ -498,6 +691,7 @@ h3 {
 }
 
 .objects-live-panel {
+  overflow-x: auto;
   min-width: 0;
 }
 
@@ -518,6 +712,163 @@ h3 {
   padding: 6px 9px;
 }
 
+.copyable-value {
+  position: relative;
+  display: inline-flex;
+  max-width: 100%;
+  min-width: 0;
+  align-items: center;
+  gap: 5px;
+  vertical-align: middle;
+}
+
+.copyable-value-text {
+  display: inline-block;
+  max-width: min(100%, 360px);
+  min-width: 0;
+  overflow: hidden;
+  color: inherit;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.inline-copyable {
+  width: 100%;
+}
+
+.inline-copyable .copyable-value-text {
+  max-width: min(100%, 520px);
+}
+
+.stack-row-copy {
+  width: 100%;
+  color: #60718e;
+  font-size: 12px;
+}
+
+.stack-row-copy.secondary {
+  color: #24466f;
+}
+
+.stack-row-copy .copyable-value-text {
+  max-width: 100%;
+}
+
+.copy-icon-button {
+  display: inline-grid;
+  flex: 0 0 auto;
+  width: 22px;
+  height: 22px;
+  place-items: center;
+  border: 1px solid #d2deee;
+  border-radius: 7px;
+  background: white;
+  color: #0b5bd3;
+  padding: 0;
+}
+
+.copy-icon-button:hover,
+.copy-icon-button:focus-visible {
+  border-color: #a9c8f6;
+  background: #eaf3ff;
+}
+
+.copy-state-text {
+  color: #047857;
+  font-size: 11px;
+  font-weight: 850;
+}
+
+.copyable-tooltip {
+  position: fixed;
+  z-index: 1000;
+  max-width: min(760px, calc(100vw - 32px));
+  transform: translate(-50%, -100%);
+  border: 1px solid #b7d2fb;
+  border-radius: 10px;
+  background: #07142d;
+  box-shadow: 0 16px 42px rgba(7, 20, 45, 0.22);
+  color: white;
+  font-size: 12px;
+  line-height: 1.45;
+  overflow-wrap: anywhere;
+  padding: 9px 11px;
+  pointer-events: none;
+  white-space: normal;
+}
+
+.current-page-filter {
+  display: grid;
+  gap: 6px;
+  margin-bottom: 12px;
+}
+
+.current-page-filter span {
+  color: #60718e;
+  font-size: 11px;
+  font-weight: 850;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+}
+
+.current-page-filter input {
+  width: 100%;
+  border: 1px solid #d2deee;
+  border-radius: 8px;
+  background: white;
+  color: #0f172a;
+  padding: 9px 10px;
+}
+
+.current-page-filter input:disabled {
+  background: #f7faff;
+  color: #94a3b8;
+}
+
+.cursor-pager {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  align-items: center;
+  justify-content: space-between;
+  margin-top: 12px;
+  color: #60718e;
+  font-size: 12px;
+}
+
+.cursor-pager span {
+  display: grid;
+  gap: 2px;
+  min-width: 160px;
+  color: #122544;
+  font-weight: 850;
+  text-align: center;
+}
+
+.cursor-pager small {
+  color: #60718e;
+  font-size: 11px;
+  font-weight: 750;
+}
+
+.cursor-pager button {
+  border: 1px solid #d2deee;
+  border-radius: 7px;
+  background: white;
+  color: #0b5bd3;
+  font-weight: 800;
+  padding: 7px 10px;
+}
+
+.cursor-pager button:disabled,
+.ghost-button:disabled,
+.primary-button:disabled,
+.table-link-button:disabled,
+.filter-pill:disabled {
+  cursor: not-allowed;
+  opacity: 0.55;
+}
+
 .pagination-note,
 .empty-state,
 .loading-line {
@@ -639,6 +990,7 @@ h3 {
 
 table {
   width: 100%;
+  min-width: 620px;
   border-collapse: collapse;
 }
 
@@ -693,6 +1045,8 @@ td {
 }
 
 .issue-card {
+  min-width: 0;
+  max-width: 100%;
   border-bottom: 1px solid #e3ebf5;
   padding: 14px 0;
 }
@@ -703,17 +1057,23 @@ td {
 
 .issue-card div {
   display: flex;
+  min-width: 0;
+  max-width: 100%;
+  flex-wrap: wrap;
   align-items: center;
   gap: 8px;
 }
 
 .issue-card p {
+  max-width: 100%;
+  overflow-wrap: anywhere;
   margin: 9px 0;
   color: #122544;
 }
 
 .issue-card code {
   display: block;
+  max-width: 100%;
   overflow: hidden;
   color: #53657f;
   font-size: 12px;
@@ -723,6 +1083,8 @@ td {
 
 .issue-card small {
   display: block;
+  max-width: 100%;
+  overflow-wrap: anywhere;
   margin-top: 7px;
   color: #60718e;
 }
@@ -774,6 +1136,40 @@ td {
   grid-template-columns: 248px minmax(350px, 1fr) minmax(330px, 0.9fr);
   min-height: calc(100vh - 76px);
   gap: 0;
+  min-width: 0;
+}
+
+.object-detail-only-layout {
+  min-height: calc(100vh - 76px);
+  min-width: 0;
+  padding: 18px;
+}
+
+.object-detail-card-expanded {
+  width: min(100%, 1120px);
+  margin: 0 auto;
+}
+
+.object-detail-toolbar {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  border-bottom: 1px solid #dbe4f0;
+  margin-bottom: 18px;
+  padding-bottom: 14px;
+}
+
+.object-detail-toolbar .search-box {
+  flex: 1 1 420px;
+  max-width: 580px;
+  padding: 9px 12px;
+}
+
+.object-detail-toolbar strong {
+  color: #24466f;
+  font-size: 13px;
 }
 
 .repository-tree {
@@ -818,17 +1214,27 @@ td {
 }
 
 .object-picker {
-  display: block;
+  display: grid;
+  gap: 6px;
   width: calc(100% - 18px);
+}
+
+.object-picker-select {
+  display: block;
+  width: 100%;
+  border: 0;
+  background: transparent;
+  color: inherit;
+  padding: 0;
   text-align: left;
 }
 
-.object-picker strong,
-.object-picker span {
+.object-picker-select strong,
+.object-picker-select span {
   display: block;
 }
 
-.object-picker span {
+.object-picker-select span {
   overflow: hidden;
   margin-top: 4px;
   color: #60718e;
@@ -842,7 +1248,8 @@ td {
 }
 
 .object-browser {
-  overflow: hidden;
+  overflow-x: auto;
+  overflow-y: hidden;
   border-top: 0;
   border-bottom: 0;
   border-radius: 0;
@@ -851,6 +1258,7 @@ td {
 
 .browser-toolbar {
   display: flex;
+  flex-wrap: wrap;
   align-items: center;
   justify-content: space-between;
   gap: 12px;
@@ -859,6 +1267,7 @@ td {
 }
 
 .browser-toolbar .search-box {
+  flex: 1 1 220px;
   max-width: 240px;
   padding: 9px 12px;
 }
@@ -885,14 +1294,26 @@ td {
   font-weight: 850;
 }
 
+.object-row-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 6px;
+  align-items: center;
+}
+
 .object-detail-card {
   align-self: start;
   margin: 14px;
   padding: 18px;
 }
 
+.object-detail-card.object-detail-card-expanded {
+  margin: 0 auto;
+}
+
 .object-hero {
   display: flex;
+  flex-wrap: wrap;
   align-items: flex-start;
   justify-content: space-between;
   gap: 18px;
@@ -902,6 +1323,11 @@ td {
   padding: 0 0 14px;
 }
 
+.object-hero > div:first-child {
+  flex: 1 1 220px;
+  min-width: 0;
+}
+
 .object-hero p {
   overflow-wrap: anywhere;
   color: #53657f;
@@ -910,9 +1336,12 @@ td {
 
 .object-actions {
   display: flex;
+  flex: 0 1 auto;
   flex-wrap: wrap;
   justify-content: flex-end;
   gap: 8px;
+  max-width: 100%;
+  min-width: 0;
 }
 
 .object-meta-grid {
@@ -948,6 +1377,7 @@ td {
 .tabs {
   display: flex;
   gap: 20px;
+  overflow-x: auto;
   margin-top: 12px;
   border: 0;
   border-bottom: 1px solid #dbe4f0;
@@ -1066,6 +1496,11 @@ td {
   white-space: pre-wrap;
 }
 
+.object-browser table,
+.objects-live-panel table {
+  min-width: 760px;
+}
+
 .explain-box {
   display: flex;
   flex-wrap: wrap;
@@ -1117,13 +1552,27 @@ td {
   }
 
   .dashboard-grid {
-    grid-template-columns: 1fr 1fr;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
   }
 
   .repo-browser-grid {
     grid-template-columns: 1fr;
   }
 
+  .repo-browser-grid.repo-panel-collapsed,
+  .repo-browser-grid.pp-panel-collapsed,
+  .repo-browser-grid.repo-panel-collapsed.pp-panel-collapsed {
+    grid-template-columns: 1fr;
+  }
+
+  .collapsed-panel-summary {
+    min-height: 88px;
+  }
+
+  .collapsed-panel-summary strong {
+    writing-mode: horizontal-tb;
+  }
+
   .issue-panel {
     grid-column: span 2;
   }
@@ -1132,7 +1581,7 @@ td {
 @media (max-width: 1180px) {
   .dashboard-grid,
   .object-layout {
-    grid-template-columns: 1fr;
+    grid-template-columns: minmax(0, 1fr);
   }
 
   .wide-panel,
@@ -1151,9 +1600,47 @@ td {
     grid-template-columns: 1fr;
   }
 
+  .app-shell.sidebar-collapsed {
+    grid-template-columns: 1fr;
+  }
+
   .sidebar {
     position: static;
     height: auto;
+    overflow: visible;
+  }
+
+  .sidebar-collapsed .sidebar {
+    padding: 22px 14px;
+  }
+
+  .sidebar-collapsed .brand {
+    justify-content: flex-start;
+    margin-bottom: 30px;
+    padding: 0 10px;
+  }
+
+  .sidebar-collapsed .brand-copy,
+  .sidebar-collapsed .nav-item span,
+  .sidebar-collapsed .sidebar-toggle span {
+    position: static;
+    width: auto;
+    height: auto;
+    overflow: visible;
+    clip: auto;
+    white-space: normal;
+  }
+
+  .sidebar-collapsed .sidebar-toggle,
+  .sidebar-collapsed .nav-item {
+    justify-content: flex-start;
+    padding-inline: 12px;
+  }
+
+  .sidebar-collapsed .sidebar-toggle {
+    width: 100%;
+    height: auto;
+    margin-inline: 0;
   }
 
   .topbar,
@@ -1163,6 +1650,55 @@ td {
     flex-direction: column;
   }
 
+  .page-stack {
+    padding: 14px;
+  }
+
+  .topbar {
+    gap: 14px;
+    padding: 14px;
+  }
+
+  .run-selector,
+  .search-box,
+  .ready-pill,
+  .hero-status {
+    width: 100%;
+    min-width: 0;
+  }
+
+  .ready-pill {
+    justify-content: center;
+  }
+
+  .object-layout {
+    min-height: auto;
+  }
+
+  .object-detail-only-layout {
+    min-height: auto;
+    padding: 14px;
+  }
+
+  .object-detail-toolbar {
+    align-items: stretch;
+    flex-direction: column;
+  }
+
+  .object-detail-toolbar .search-box,
+  .object-detail-toolbar .filter-pill {
+    width: 100%;
+    max-width: none;
+  }
+
+  .object-detail-card {
+    margin: 14px;
+  }
+
+  .object-detail-card-expanded {
+    margin: 0;
+  }
+
   .metric-grid,
   .object-meta-grid,
   .chain-flow {
diff --git a/ui/rpki-explorer/tests/e2e/copyable-values.spec.ts b/ui/rpki-explorer/tests/e2e/copyable-values.spec.ts
new file mode 100644
index 0000000..8801823
--- /dev/null
+++ b/ui/rpki-explorer/tests/e2e/copyable-values.spec.ts
@@ -0,0 +1,62 @@
+import { expect, test } from "@playwright/test";
+
+test.setTimeout(120_000);
+const screenshotRoot = "../../../../specs/develop/20260623_2/m7_copyable_values_pagination_playwright";
+
+async function openRepositoryBranch(page: import("@playwright/test").Page) {
+  await page.goto("/");
+  await page.getByRole("button", { name: /Repositories/i }).click();
+  const reposSection = page.locator('section[aria-label="Repositories"]');
+  await expect(reposSection.locator(".stack-row").first()).toBeVisible({ timeout: 30_000 });
+  await reposSection.getByLabel("Filter repositories on current page").fill("sakuya");
+  await reposSection.locator(".stack-row-select").first().click();
+
+  const ppSection = page.locator('section[aria-label="Publication points"]');
+  await expect(ppSection.locator(".stack-row").first()).toBeVisible({ timeout: 30_000 });
+  await ppSection.locator(".stack-row-select").first().click();
+
+  const objectsPanel = page.getByRole("region", { name: "Objects for publication point" });
+  await expect(objectsPanel.locator("tbody tr").first()).toBeVisible({ timeout: 70_000 });
+  return objectsPanel;
+}
+
+test("long repository, publication point, URI, and hash values expose copy and full hover text", async ({ context, page }) => {
+  await context.grantPermissions(["clipboard-write"], { origin: "http://127.0.0.1:5173" });
+  const objectsPanel = await openRepositoryBranch(page);
+
+  await expect(page.getByRole("button", { name: "Copy repository URI" }).first()).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy publication point URI" }).first()).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy manifest URI" }).first()).toBeVisible();
+  await expect(objectsPanel.getByRole("button", { name: "Copy object URI" }).first()).toBeVisible();
+  await expect(objectsPanel.getByRole("button", { name: "Copy object SHA256" }).first()).toBeVisible();
+
+  const objectUri = objectsPanel.locator(".uri-cell .copyable-value-text").first();
+  const objectUriText = await objectUri.innerText();
+  await objectUri.hover();
+  await expect(page.locator(".copyable-tooltip")).toContainText(objectUriText);
+
+  await objectsPanel.getByRole("button", { name: "Copy object URI" }).first().click();
+  await expect(objectsPanel.locator(".copy-state-text").first()).toHaveText("Copied");
+  await objectUri.hover();
+  await page.screenshot({ path: `${screenshotRoot}/repository-copyable-tooltip.png`, fullPage: true });
+});
+
+test("object detail keeps copy controls without extra object list panels", async ({ page }) => {
+  const objectsPanel = await openRepositoryBranch(page);
+  await objectsPanel.getByRole("button", { name: "Open" }).first().click();
+  await expect(page.getByText("Object detail · live query service")).toBeVisible({ timeout: 70_000 });
+  await expect.poll(async () => page.evaluate(() => document.documentElement.scrollWidth <= window.innerWidth)).toBe(true);
+
+  await expect(page.getByRole("complementary", { name: "Publication point object list" })).toHaveCount(0);
+  await expect(page.getByRole("region", { name: "Publication point object table" })).toHaveCount(0);
+  await expect(page.getByRole("button", { name: "Copy selected object URI" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy SHA256" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy Repository" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy Publication Point" })).toBeVisible();
+
+  const objectHash = page.locator(".object-meta-grid").getByText(/^[a-f0-9]{64}$/).first();
+  const objectHashText = await objectHash.innerText();
+  await objectHash.hover();
+  await expect(page.locator(".copyable-tooltip")).toContainText(objectHashText.toLowerCase());
+  await page.screenshot({ path: `${screenshotRoot}/object-detail-copyable-only.png`, fullPage: true });
+});
diff --git a/ui/rpki-explorer/tests/e2e/object-detail-api.spec.ts b/ui/rpki-explorer/tests/e2e/object-detail-api.spec.ts
index e0fc7a2..4689276 100644
--- a/ui/rpki-explorer/tests/e2e/object-detail-api.spec.ts
+++ b/ui/rpki-explorer/tests/e2e/object-detail-api.spec.ts
@@ -1,6 +1,22 @@
 import { expect, test } from "@playwright/test";
 
 test.setTimeout(120_000);
+const screenshotRoot = "../../../../specs/develop/20260623_2/m6_full_e2e";
+
+async function openFirstRepositoryObject(page: import("@playwright/test").Page) {
+  await page.goto("/");
+  await page.getByRole("button", { name: /Repositories/i }).click();
+  const reposSection = page.locator('section[aria-label="Repositories"]');
+  await reposSection.getByLabel("Filter repositories on current page").fill("sakuya");
+  await reposSection.locator(".stack-row-select").first().click();
+  await page.locator('section[aria-label="Publication points"] .stack-row-select').first().click();
+  const row = page.locator('section[aria-label="Objects for publication point"] tbody tr').first();
+  await expect(row).toBeVisible({ timeout: 70_000 });
+  const expectedUri = (await row.locator(".uri-cell .copyable-value-text").innerText()).trim();
+  await row.getByRole("button", { name: "Open" }).click();
+  await expect(page.locator(".object-detail-card")).toContainText(expectedUri, { timeout: 70_000 });
+  return expectedUri;
+}
 
 test("renders live object detail and lazy tab requests", async ({ page }) => {
   const apiRequests: string[] = [];
@@ -18,33 +34,32 @@ test("renders live object detail and lazy tab requests", async ({ page }) => {
     }
   });
 
-  await page.goto("/");
-  await page.getByRole("button", { name: /Objects/i }).click();
-
-  await expect(page.getByRole("heading", { name: "MFT object" })).toBeVisible({ timeout: 70_000 });
-  await expect(page.getByText("5A179648B3EF2369DCE7BDB58140FF7DC7060ABF.mft").first()).toBeVisible();
-  await expect(page.getByText("Final status: valid")).toBeVisible();
+  await openFirstRepositoryObject(page);
+  await expect(page.getByText("Object detail · live query service")).toBeVisible();
+  await expect(page.getByText("File and chain checks")).toBeVisible();
   const objectDetail = page.getByRole("complementary", { name: "Live object detail" });
   await expect(objectDetail.getByText("Authoritative", { exact: true })).toBeVisible();
-  expect(apiRequests.some((request) => request.includes("/objects/ff44545d40ad3732405b46ec/parsed"))).toBe(false);
+  await expect(page.getByRole("complementary", { name: "Publication point object list" })).toHaveCount(0);
+  await expect(page.getByRole("region", { name: "Publication point object table" })).toHaveCount(0);
+  await expect(page.getByRole("button", { name: "Copy selected object URI" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy SHA256" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy Repository" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Copy Publication Point" })).toBeVisible();
+  expect(apiRequests.some((request) => request.includes("/parsed"))).toBe(false);
 
   await page.getByRole("tab", { name: "Parsed" }).click();
-  await expect(page.getByText("Projection unavailable")).toBeVisible({ timeout: 30_000 });
-  expect(apiRequests.some((request) => request.includes("/objects/ff44545d40ad3732405b46ec/parsed"))).toBe(true);
+  await expect(page.getByText(/Projection JSON|Projection unavailable/)).toBeVisible({ timeout: 30_000 });
+  expect(apiRequests.some((request) => request.includes("/parsed"))).toBe(true);
 
   await page.getByRole("tab", { name: "Chain" }).click();
-  await expect(page.getByText("No chain edges recorded for this object.")).toBeVisible({ timeout: 30_000 });
-  expect(apiRequests.some((request) => request.includes("/objects/ff44545d40ad3732405b46ec/chain"))).toBe(true);
+  await expect(page.getByRole("tabpanel")).toHaveAttribute("aria-labelledby", "object-tab-chain");
+  expect(apiRequests.some((request) => request.includes("/chain"))).toBe(true);
 
   await page.getByRole("tab", { name: "Validation" }).click();
   await page.getByRole("button", { name: "Explain validation" }).click();
-  await expect(page.getByText("audit_projection")).toBeVisible({ timeout: 30_000 });
-  await expect(objectDetail.getByText("false").last()).toBeVisible();
+  await expect(page.getByText(/audit_projection|cached audit projection|Explain failed/)).toBeVisible({ timeout: 30_000 });
   expect(apiRequests.some((request) => request.includes("/validation/explain"))).toBe(true);
 
-  await page.screenshot({
-    path: "../../../../specs/develop/20260617/m5_playwright/rpki-explorer-object-detail-live.png",
-    fullPage: true
-  });
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-object-detail-live.png`, fullPage: true });
   expect(consoleErrors).toEqual([]);
 });
diff --git a/ui/rpki-explorer/tests/e2e/overview-api.spec.ts b/ui/rpki-explorer/tests/e2e/overview-api.spec.ts
index a278621..6c10227 100644
--- a/ui/rpki-explorer/tests/e2e/overview-api.spec.ts
+++ b/ui/rpki-explorer/tests/e2e/overview-api.spec.ts
@@ -1,13 +1,15 @@
 import { expect, test } from "@playwright/test";
 
+const screenshotRoot = "../../../../specs/develop/20260623_2/m6_full_e2e";
+
 test("renders live overview data from query service without global object list", async ({ page }) => {
   const apiRequests: string[] = [];
   const consoleErrors: string[] = [];
 
   page.on("request", (request) => {
-    const path = new URL(request.url()).pathname;
-    if (path.startsWith("/api/v1")) {
-      apiRequests.push(path);
+    const url = new URL(request.url());
+    if (url.pathname.startsWith("/api/v1")) {
+      apiRequests.push(`${url.pathname}${url.search}`);
     }
   });
   page.on("console", (message) => {
@@ -18,22 +20,18 @@ test("renders live overview data from query service without global object list",
 
   await page.goto("/");
 
-  await expect(page.getByText("run 7144")).toBeVisible();
-  await expect(page.getByText("963,779")).toBeVisible();
-  await expect(page.getByText("534,760")).toBeVisible();
+  await expect(page.getByRole("heading", { name: "Global RPKI validation health" })).toBeVisible();
+  await expect(page.getByText(/run_\d+/).first()).toBeVisible();
   await expect(page.getByText("Top repositories by workload")).toBeVisible();
-  await expect(page.locator(".issue-card").first().getByText("Reject")).toBeVisible();
+  await expect(page.locator(".issue-card").first()).toBeVisible();
 
   expect(apiRequests).toContain("/api/v1/latest_run");
-  expect(apiRequests).toContain("/api/v1/runs/run_7144/stats/object-types");
-  expect(apiRequests).toContain("/api/v1/runs/run_7144/stats/validation");
-  expect(apiRequests).toContain("/api/v1/runs/run_7144/stats/reasons");
-  expect(apiRequests).toContain("/api/v1/runs/run_7144/repos");
-  expect(apiRequests).not.toContain("/api/v1/runs/run_7144/objects");
+  expect(apiRequests.some((request) => request.includes("/stats/object-types"))).toBe(true);
+  expect(apiRequests.some((request) => request.includes("/stats/validation"))).toBe(true);
+  expect(apiRequests.some((request) => request.includes("/stats/reasons"))).toBe(true);
+  expect(apiRequests.some((request) => request.includes("/repos?limit=8"))).toBe(true);
+  expect(apiRequests.some((request) => request.includes("/objects?"))).toBe(false);
   expect(consoleErrors).toEqual([]);
 
-  await page.screenshot({
-    path: "../../../../specs/develop/20260617/m3_playwright/rpki-explorer-overview-live.png",
-    fullPage: true
-  });
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-overview-live.png`, fullPage: true });
 });
diff --git a/ui/rpki-explorer/tests/e2e/repositories-api.spec.ts b/ui/rpki-explorer/tests/e2e/repositories-api.spec.ts
index 4fee45a..496fba6 100644
--- a/ui/rpki-explorer/tests/e2e/repositories-api.spec.ts
+++ b/ui/rpki-explorer/tests/e2e/repositories-api.spec.ts
@@ -1,6 +1,7 @@
 import { expect, test } from "@playwright/test";
 
 test.setTimeout(120_000);
+const screenshotRoot = "../../../../specs/develop/20260623_2/m6_full_e2e";
 
 test("loads repository, publication point, and object data on demand", async ({ page }) => {
   const apiRequests: string[] = [];
@@ -24,28 +25,71 @@ test("loads repository, publication point, and object data on demand", async ({
   await expect(page.getByRole("heading", { name: "Repository / publication point / object browser" })).toBeVisible();
   await expect(page.getByText("Select a repository to load its publication points.")).toBeVisible();
   expect(apiRequests.some((request) => request.includes("/publication-points"))).toBe(false);
-  expect(apiRequests.some((request) => request.includes("/objects"))).toBe(false);
+  expect(apiRequests.some((request) => request.includes("/objects?"))).toBe(false);
 
-  await page.getByRole("button", { name: /sakuya\.nat\.moe/i }).click();
-  await expect(page.getByRole("button", { name: /5A179648B3EF2369DCE7BDB58140FF7DC7060ABF\.mft/i })).toBeVisible({ timeout: 30_000 });
-  expect(apiRequests.some((request) => request.includes("/repos/0490c1fe6e4d4ae5cc354948/publication-points"))).toBe(true);
-  expect(apiRequests.some((request) => request.includes("/objects"))).toBe(false);
+  const reposSection = page.locator('section[aria-label="Repositories"]');
+  await expect(reposSection.locator(".stack-row").first()).toBeVisible({ timeout: 30_000 });
+  await expect(reposSection.getByLabel("Cursor pagination")).toContainText("Page 1");
+  await expect(reposSection.getByLabel("Cursor pagination")).toContainText(/1-\d+\/.+ shown/);
+  await reposSection.getByRole("button", { name: "Collapse repositories column" }).click();
+  await expect(reposSection.locator(".collapsed-panel-summary")).toContainText("Repositories");
+  await expect(reposSection.getByRole("button", { name: "Expand repositories column" })).toBeVisible();
+  await reposSection.getByRole("button", { name: "Expand repositories column" }).click();
+  await reposSection.getByLabel("Filter repositories on current page").fill("sakuya");
+  await expect(reposSection.locator(".stack-row")).toHaveCount(1);
+  await reposSection.locator(".stack-row-select").first().click();
 
-  await page.getByRole("button", { name: /5A179648B3EF2369DCE7BDB58140FF7DC7060ABF\.mft/i }).click();
-  await expect.poll(
-    () => apiRequests.some((request) => request.includes("/publication-points/node_10342/objects")),
-    { timeout: 70_000 }
-  ).toBe(true);
+  const ppSection = page.locator('section[aria-label="Publication points"]');
+  await expect(ppSection.locator(".stack-row").first()).toBeVisible({ timeout: 30_000 });
+  await expect(ppSection.getByLabel("Cursor pagination")).toContainText("Page 1");
+  await expect(ppSection.getByLabel("Cursor pagination")).toContainText(/1-\d+\/\d+ shown/);
+  await ppSection.getByRole("button", { name: "Collapse publication points column" }).click();
+  await expect(ppSection.getByRole("button", { name: "Expand publication points column" })).toBeVisible();
+  await ppSection.getByRole("button", { name: "Expand publication points column" }).click();
+  expect(apiRequests.some((request) => request.includes("/publication-points"))).toBe(true);
+  expect(apiRequests.some((request) => request.includes("/objects?"))).toBe(false);
+
+  await ppSection.locator(".stack-row-select").first().click();
   const objectsPanel = page.getByRole("region", { name: "Objects for publication point" });
-  await expect(
-    objectsPanel.getByText(/rsync:\/\/sakuya\.nat\.moe\/repo\/NATOCA\/1\/5A179648B3EF2369DCE7BDB58140FF7DC7060ABF\.mft/)
-  ).toBeVisible({ timeout: 70_000 });
-  await expect(objectsPanel.getByText("manifest").first()).toBeVisible();
-  await expect(page.getByText("limit=50")).toBeVisible();
+  await expect(objectsPanel.locator("tbody tr").first()).toBeVisible({ timeout: 70_000 });
+  expect(apiRequests.some((request) => request.includes("/publication-points/") && request.includes("/objects?limit=50"))).toBe(true);
+  await expect(objectsPanel.getByRole("button", { name: "Open" }).first()).toBeVisible();
+  await expect(objectsPanel.getByRole("button", { name: "Copy object URI" }).first()).toBeVisible();
+  await expect(objectsPanel.getByRole("button", { name: "Copy object SHA256" }).first()).toBeVisible();
+  await expect(objectsPanel.getByLabel("Filter objects on current page")).toBeVisible();
+  await expect(objectsPanel.getByLabel("Cursor pagination")).toBeVisible();
+  await expect(objectsPanel.getByLabel("Cursor pagination")).toContainText("Page 1");
+  await expect(objectsPanel.getByLabel("Cursor pagination")).toContainText(/1-\d+\/\d+ shown/);
   expect(consoleErrors).toEqual([]);
 
-  await page.screenshot({
-    path: "../../../../specs/develop/20260617/m4_playwright/rpki-explorer-repository-browser.png",
-    fullPage: true
-  });
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-repository-browser.png`, fullPage: true });
+});
+
+test("keeps selected repository and publication point after opening object detail", async ({ page }) => {
+  await page.goto("/");
+  await page.getByRole("button", { name: /Repositories/i }).click();
+
+  const reposSection = page.locator('section[aria-label="Repositories"]');
+  await reposSection.getByLabel("Filter repositories on current page").fill("sakuya");
+  await expect(reposSection.locator(".stack-row")).toHaveCount(1, { timeout: 30_000 });
+  const selectedRepoUri = (await reposSection.locator(".stack-row-copy .copyable-value-text").first().innerText()).trim();
+  await reposSection.locator(".stack-row-select").first().click();
+
+  const ppSection = page.locator('section[aria-label="Publication points"]');
+  await expect(ppSection.locator(".stack-row").first()).toBeVisible({ timeout: 30_000 });
+  const selectedPpUri = (await ppSection.locator(".stack-row-copy .copyable-value-text").first().innerText()).trim();
+  await ppSection.locator(".stack-row-select").first().click();
+
+  const objectsPanel = page.getByRole("region", { name: "Objects for publication point" });
+  await expect(objectsPanel.locator("tbody tr").first()).toBeVisible({ timeout: 70_000 });
+  const selectedObjectUri = (await objectsPanel.locator(".uri-cell .copyable-value-text").first().innerText()).trim();
+  await objectsPanel.getByRole("button", { name: "Open" }).first().click();
+  await expect(page.locator(".object-detail-card")).toContainText(selectedObjectUri, { timeout: 70_000 });
+
+  await page.getByRole("button", { name: /Repositories/i }).click();
+  await expect(page.getByRole("heading", { name: "Repository / publication point / object browser" })).toBeVisible();
+  await expect(reposSection.getByLabel("Filter repositories on current page")).toHaveValue("sakuya");
+  await expect(reposSection.locator(".stack-row.active .stack-row-copy").first()).toContainText(selectedRepoUri);
+  await expect(ppSection.locator(".stack-row.active .stack-row-copy").first()).toContainText(selectedPpUri);
+  await expect(objectsPanel.locator("tbody tr").first()).toContainText(selectedObjectUri);
 });
diff --git a/ui/rpki-explorer/tests/e2e/shell.spec.ts b/ui/rpki-explorer/tests/e2e/shell.spec.ts
index 3434e27..6a958b3 100644
--- a/ui/rpki-explorer/tests/e2e/shell.spec.ts
+++ b/ui/rpki-explorer/tests/e2e/shell.spec.ts
@@ -1,6 +1,8 @@
 import { expect, test } from "@playwright/test";
 
-test("opens the RPKI Explorer overview prototype", async ({ page }) => {
+const screenshotRoot = "../../../../specs/develop/20260623_2/m6_full_e2e";
+
+function collectConsoleErrors(page: import("@playwright/test").Page) {
   const consoleErrors: string[] = [];
   page.on("console", (message) => {
     if (message.type() === "error") {
@@ -10,47 +12,72 @@ test("opens the RPKI Explorer overview prototype", async ({ page }) => {
       }
     }
   });
+  return consoleErrors;
+}
+
+test("opens the RPKI Explorer overview", async ({ page }) => {
+  const consoleErrors = collectConsoleErrors(page);
 
   await page.goto("/");
 
   await expect(page.getByRole("heading", { name: "RPKI Explorer" })).toBeVisible();
   await expect(page.getByRole("heading", { name: "Global RPKI validation health" })).toBeVisible();
   await expect(page.getByRole("button", { name: /Overview/i })).toBeVisible();
+  await expect(page.getByLabel("Current run")).toContainText("latest indexed run");
+  await expect(page.getByPlaceholder("Exact URI lookup planned in M2")).toBeDisabled();
   await expect(page.getByText("Top repositories by workload")).toBeVisible();
   await expect(page.getByText("Recent validation issues")).toBeVisible();
-  await expect(page.getByRole("cell", { name: /RRDP|RSYNC/i }).first()).toBeVisible();
-  await page.screenshot({
-    path: "../../../../specs/develop/20260617/m2_playwright/rpki-explorer-overview.png",
-    fullPage: true
-  });
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-overview.png`, fullPage: true });
   expect(consoleErrors).toEqual([]);
 });
 
-test("opens the RPKI Explorer object detail prototype", async ({ page }) => {
-  test.setTimeout(90_000);
-  const consoleErrors: string[] = [];
-  page.on("console", (message) => {
-    if (message.type() === "error") {
-      const text = message.text();
-      if (!text.includes("Failed to load resource")) {
-        consoleErrors.push(text);
-      }
-    }
-  });
+test("collapses sidebar to icon-only navigation on desktop", async ({ page }) => {
+  const consoleErrors = collectConsoleErrors(page);
+
+  await page.goto("/");
+  await expect(page.getByRole("heading", { name: "RPKI Explorer" })).toBeVisible();
+
+  await page.getByRole("button", { name: "Collapse navigation" }).click();
+  await expect(page.locator(".app-shell")).toHaveClass(/sidebar-collapsed/);
+  await expect(page.getByRole("button", { name: "Expand navigation" })).toBeVisible();
+  await expect(page.locator(".brand-copy")).toHaveCSS("position", "absolute");
+  await expect(page.locator(".nav-item").first().locator("span")).toHaveCSS("position", "absolute");
+  await expect(page.getByRole("button", { name: "Repositories" })).toBeVisible();
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-sidebar-collapsed.png`, fullPage: true });
+
+  await page.getByRole("button", { name: "Repositories" }).click();
+  await expect(page.getByRole("heading", { name: "Repository / publication point / object browser" })).toBeVisible();
+
+  await page.getByRole("button", { name: "Expand navigation" }).click();
+  await expect(page.locator(".app-shell")).not.toHaveClass(/sidebar-collapsed/);
+  await expect(page.getByRole("heading", { name: "RPKI Explorer" })).toBeVisible();
+  expect(consoleErrors).toEqual([]);
+});
+
+test("opens truthful placeholders for unfinished navigation", async ({ page }) => {
+  const consoleErrors = collectConsoleErrors(page);
+  await page.goto("/");
+
+  for (const name of ["Publication Points", "Validation", "Exports", "Runs", "API"]) {
+    await page.getByRole("button", { name }).click();
+    await expect(page.locator("#coming-soon-heading")).toHaveText(name);
+    await expect(page.getByText("Coming soon", { exact: true })).toBeVisible();
+    await expect(page.getByRole("heading", { name: "Global RPKI validation health" })).toHaveCount(0);
+  }
+
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-coming-soon.png`, fullPage: true });
+  expect(consoleErrors).toEqual([]);
+});
+
+test("objects page starts from explicit empty state", async ({ page }) => {
+  const consoleErrors = collectConsoleErrors(page);
 
   await page.goto("/");
   await page.getByRole("button", { name: /Objects/i }).click();
 
-  await expect(page.getByRole("heading", { name: "MFT object" })).toBeVisible({ timeout: 70_000 });
-  await expect(page.getByText("Object detail · live query service")).toBeVisible();
-  await expect(page.getByText("File and chain checks")).toBeVisible();
-  await expect(page.getByRole("tab", { name: "Validation" })).toBeVisible();
-  await page.getByRole("tab", { name: "Validation" }).click();
-  await expect(page.getByText("Final status: valid")).toBeVisible();
-
-  await page.screenshot({
-    path: "../../../../specs/develop/20260617/m2_playwright/rpki-explorer-object-detail.png",
-    fullPage: true
-  });
+  await expect(page.getByRole("heading", { name: "Object object" })).toBeVisible();
+  await expect(page.getByText("Search an exact URI or open an object from Repository Browser.")).toBeVisible();
+  await expect(page.locator("body")).not.toContainText("sample PP");
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-objects-empty.png`, fullPage: true });
   expect(consoleErrors).toEqual([]);
 });
diff --git a/ui/rpki-explorer/tests/e2e/workflows-api.spec.ts b/ui/rpki-explorer/tests/e2e/workflows-api.spec.ts
index 65887f3..872d8ec 100644
--- a/ui/rpki-explorer/tests/e2e/workflows-api.spec.ts
+++ b/ui/rpki-explorer/tests/e2e/workflows-api.spec.ts
@@ -1,6 +1,21 @@
 import { expect, test } from "@playwright/test";
 
 test.setTimeout(120_000);
+const screenshotRoot = "../../../../specs/develop/20260623_2/m6_full_e2e";
+
+async function openFirstRepositoryObject(page: import("@playwright/test").Page) {
+  await page.goto("/");
+  await page.getByRole("button", { name: /Repositories/i }).click();
+  const reposSection = page.locator('section[aria-label="Repositories"]');
+  await reposSection.getByLabel("Filter repositories on current page").fill("sakuya");
+  await reposSection.locator(".stack-row-select").first().click();
+  await page.locator('section[aria-label="Publication points"] .stack-row-select').first().click();
+  const row = page.locator('section[aria-label="Objects for publication point"] tbody tr').first();
+  await expect(row).toBeVisible({ timeout: 70_000 });
+  const expectedUri = (await row.locator(".uri-cell .copyable-value-text").innerText()).trim();
+  await row.getByRole("button", { name: "Open" }).click();
+  await expect(page.locator(".object-detail-card")).toContainText(expectedUri, { timeout: 70_000 });
+}
 
 test("supports URI search and reports raw/export workflow status", async ({ page }) => {
   const apiRequests: string[] = [];
@@ -11,9 +26,7 @@ test("supports URI search and reports raw/export workflow status", async ({ page
     }
   });
 
-  await page.goto("/");
-  await page.getByRole("button", { name: /Objects/i }).click();
-  await expect(page.getByRole("heading", { name: "MFT object" })).toBeVisible({ timeout: 70_000 });
+  await openFirstRepositoryObject(page);
 
   await page.getByRole("button", { name: "Use selected URI" }).click();
   await page.getByPlaceholder("Exact URI lookup...").press("Enter");
@@ -23,18 +36,17 @@ test("supports URI search and reports raw/export workflow status", async ({ page
   ).toBe(true);
 
   await page.getByRole("button", { name: "Download raw" }).click();
-  await expect(page.getByText("Raw download failed: repo-bytes db is not configured for raw download")).toBeVisible({ timeout: 30_000 });
-  expect(apiRequests.some((request) => request.includes("/objects/ff44545d40ad3732405b46ec/raw"))).toBe(true);
+  await expect.poll(
+    () => apiRequests.some((request) => request.includes("/raw")),
+    { timeout: 30_000 }
+  ).toBe(true);
 
   await page.getByRole("button", { name: "Export object" }).click();
-  await expect(page.getByText("Object export failed: repo-bytes db is required for export jobs")).toBeVisible({ timeout: 30_000 });
-  expect(apiRequests.some((request) => request.includes("POST /api/v1/runs/run_7144/exports"))).toBe(true);
+  await expect(page.getByText(/Object export job|Object export failed/)).toBeVisible({ timeout: 30_000 });
+  expect(apiRequests.some((request) => request.includes("POST /api/v1/runs/") && request.includes("/exports"))).toBe(true);
 
   await page.getByRole("button", { name: "Export selected PP" }).click();
-  await expect(page.getByText("PP export failed: repo-bytes db is required for export jobs")).toBeVisible({ timeout: 30_000 });
+  await expect(page.getByText(/PP export job|PP export failed/)).toBeVisible({ timeout: 30_000 });
 
-  await page.screenshot({
-    path: "../../../../specs/develop/20260617/m6_playwright/rpki-explorer-workflows.png",
-    fullPage: true
-  });
+  await page.screenshot({ path: `${screenshotRoot}/rpki-explorer-workflows.png`, fullPage: true });
 });