Refactor App.tsx from god component to context-based architecture

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add advantage/disadvantage rolling for initiative
2026-03-19 15:33:33 +01:00 · 2026-03-18 09:16:04 +01:00 · 2026-03-17 23:23:52 +01:00 · 2026-03-17 13:24:18 +01:00 · 2026-03-17 12:48:38 +01:00 · 2026-03-17 12:18:31 +01:00
53 changed files with 1663 additions and 797 deletions
--- a/.specify/memory/constitution.md
+++ b/.specify/memory/constitution.md
@@ -1,9 +1,9 @@
 <!--
  Sync Impact Report
  ───────────────────
-  Version change: 2.2.1 → 3.0.0 (MAJOR — specs describe features not changes, proportional workflow)
+  Version change: 3.0.0 → 3.1.0 (MINOR — new principle II-A: context-based state flow)
  Modified sections:
-    - Development Workflow: specs are living feature documents; full pipeline for new features only
+    - Core Principles: added II-A. Context-Based State Flow (max 8 props, context over prop drilling)
  Templates requiring updates: none
 -->
 # Encounter Console Constitution
@@ -38,6 +38,22 @@ dependency direction:

 A module in an inner layer MUST NOT import from an outer layer.

+### II-A. Context-Based State Flow
+
+UI components MUST consume shared application state via React context
+providers, not prop drilling. Props are reserved for per-instance
+configuration (e.g., a specific data item, a layout variant, a ref).
+
+- Components MUST NOT declare more than 8 explicit props in their
+  own interface. This is enforced by `scripts/check-component-props.mjs`
+  at pre-commit.
+- Generic UI primitives (`components/ui/`) that extend HTML element
+  attributes are exempt — only explicitly declared props count, not
+  inherited HTML attributes.
+- Coordinating hooks that consume multiple contexts (e.g.,
+  `useInitiativeRolls`) are preferred over wiring callbacks through
+  a parent component.
+
 ### III. Clarification-First

 Before making any non-trivial assumption during specification,
@@ -140,4 +156,4 @@ MUST comply with its principles.
 **Compliance review**: Every spec and plan MUST include a
 Constitution Check section validating adherence to all principles.

-**Version**: 3.0.0 | **Ratified**: 2026-03-03 | **Last Amended**: 2026-03-11
+**Version**: 3.1.0 | **Ratified**: 2026-03-03 | **Last Amended**: 2026-03-19
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -13,6 +13,7 @@ pnpm test:watch         # Tests in watch mode
 pnpm typecheck          # tsc --build (project references)
 pnpm lint               # Biome lint
 pnpm format             # Biome format (writes)
+pnpm check:props        # Component prop count enforcement (max 8)
 pnpm --filter web dev   # Vite dev server (localhost:5173)
 pnpm --filter web build # Production build
 ```
@@ -71,6 +72,7 @@ docs/agents/               RPI skill artifacts (research reports, plans)
 - **Domain events** are plain data objects with a `type` discriminant — no classes.
 - **Tests** live in `packages/*/src/__tests__/*.test.ts`. Test pure functions directly; map acceptance scenarios and invariants from specs to individual `it()` blocks.
 - **Feature specs** live in `specs/NNN-feature-name/` with spec.md (and optionally plan.md, tasks.md for new work). Specs describe features, not individual changes. The project constitution is at `.specify/memory/constitution.md`.
+- **Component props** — max 8 explicitly declared props per component interface (enforced by `scripts/check-component-props.mjs`). Use React context for shared state; reserve props for per-instance config (data items, layout variants, refs).
 - **Quality gates** are enforced at pre-commit via Lefthook's `pnpm check` — the project's single earliest enforcement point. No gate may exist only as a CI step or manual process.

 ## Self-Review Checklist
--- a/apps/web/src/App.tsx
+++ b/apps/web/src/App.tsx
@@ -1,200 +1,43 @@
-import {
-	rollAllInitiativeUseCase,
-	rollInitiativeUseCase,
-} from "@initiative/application";
-import {
-	type CombatantId,
-	type Creature,
-	type CreatureId,
-	isDomainError,
-} from "@initiative/domain";
-import {
-	useCallback,
-	useEffect,
-	useLayoutEffect,
-	useRef,
-	useState,
-} from "react";
-import { ActionBar } from "./components/action-bar";
-import { BulkImportToasts } from "./components/bulk-import-toasts";
-import { CombatantRow } from "./components/combatant-row";
+import { useEffect, useRef } from "react";
+import { ActionBar } from "./components/action-bar.js";
+import { BulkImportToasts } from "./components/bulk-import-toasts.js";
+import { CombatantRow } from "./components/combatant-row.js";
 import {
 	PlayerCharacterSection,
 	type PlayerCharacterSectionHandle,
-} from "./components/player-character-section";
-import { StatBlockPanel } from "./components/stat-block-panel";
-import { Toast } from "./components/toast";
-import { TurnNavigation } from "./components/turn-navigation";
-import { type SearchResult, useBestiary } from "./hooks/use-bestiary";
-import { useBulkImport } from "./hooks/use-bulk-import";
-import { useEncounter } from "./hooks/use-encounter";
-import { usePlayerCharacters } from "./hooks/use-player-characters";
-import { useSidePanelState } from "./hooks/use-side-panel-state";
-import { cn } from "./lib/utils";
-
-function rollDice(): number {
-	return Math.floor(Math.random() * 20) + 1;
-}
-
-function useActionBarAnimation(combatantCount: number) {
-	const wasEmptyRef = useRef(combatantCount === 0);
-	const [settling, setSettling] = useState(false);
-	const [rising, setRising] = useState(false);
-	const [topBarExiting, setTopBarExiting] = useState(false);
-
-	useLayoutEffect(() => {
-		const nowEmpty = combatantCount === 0;
-		if (wasEmptyRef.current && !nowEmpty) {
-			setSettling(true);
-		} else if (!wasEmptyRef.current && nowEmpty) {
-			setRising(true);
-			setTopBarExiting(true);
-		}
-		wasEmptyRef.current = nowEmpty;
-	}, [combatantCount]);
-
-	const empty = combatantCount === 0;
-	const risingClass = rising ? "animate-rise-to-center" : "";
-	const settlingClass = settling ? "animate-settle-to-bottom" : "";
-	const exitingClass = topBarExiting
-		? "absolute inset-x-0 top-0 z-10 px-4 animate-slide-up-out"
-		: "";
-	const topBarClass = settling ? "animate-slide-down-in" : exitingClass;
-	const showTopBar = !empty || topBarExiting;
-
-	return {
-		risingClass,
-		settlingClass,
-		topBarClass,
-		showTopBar,
-		onSettleEnd: () => setSettling(false),
-		onRiseEnd: () => setRising(false),
-		onTopBarExitEnd: () => setTopBarExiting(false),
-	};
-}
+} from "./components/player-character-section.js";
+import { StatBlockPanel } from "./components/stat-block-panel.js";
+import { Toast } from "./components/toast.js";
+import { TurnNavigation } from "./components/turn-navigation.js";
+import { useEncounterContext } from "./contexts/encounter-context.js";
+import { useInitiativeRollsContext } from "./contexts/initiative-rolls-context.js";
+import { useSidePanelContext } from "./contexts/side-panel-context.js";
+import { useActionBarAnimation } from "./hooks/use-action-bar-animation.js";
+import { useAutoStatBlock } from "./hooks/use-auto-stat-block.js";
+import { cn } from "./lib/utils.js";

 export function App() {
-	const {
-		encounter,
-		isEmpty,
-		hasCreatureCombatants,
-		canRollAllInitiative,
-		advanceTurn,
-		retreatTurn,
-		addCombatant,
-		clearEncounter,
-		removeCombatant,
-		editCombatant,
-		setInitiative,
-		setHp,
-		adjustHp,
-		setAc,
-		toggleCondition,
-		toggleConcentration,
-		addFromBestiary,
-		addFromPlayerCharacter,
-		makeStore,
-	} = useEncounter();
+	const { encounter, isEmpty } = useEncounterContext();
+	const sidePanel = useSidePanelContext();
+	const rolls = useInitiativeRollsContext();

-	const {
-		characters: playerCharacters,
-		createCharacter: createPlayerCharacter,
-		editCharacter: editPlayerCharacter,
-		deleteCharacter: deletePlayerCharacter,
-	} = usePlayerCharacters();
+	useAutoStatBlock();

-	const {
-		search,
-		getCreature,
-		isLoaded,
-		isSourceCached,
-		fetchAndCacheSource,
-		uploadAndCacheSource,
-		refreshCache,
-	} = useBestiary();
-
-	const bulkImport = useBulkImport();
-	const sidePanel = useSidePanelState();
-
-	const [rollSkippedCount, setRollSkippedCount] = useState(0);
-
-	const selectedCreature: Creature | null = sidePanel.selectedCreatureId
-		? (getCreature(sidePanel.selectedCreatureId) ?? null)
-		: null;
-
-	const pinnedCreature: Creature | null = sidePanel.pinnedCreatureId
-		? (getCreature(sidePanel.pinnedCreatureId) ?? null)
-		: null;
-
-	const handleAddFromBestiary = useCallback(
-		(result: SearchResult) => {
-			addFromBestiary(result);
-		},
-		[addFromBestiary],
-	);
-
-	const handleCombatantStatBlock = useCallback(
-		(creatureId: string) => {
-			sidePanel.showCreature(creatureId as CreatureId);
-		},
-		[sidePanel.showCreature],
-	);
-
-	const handleRollInitiative = useCallback(
-		(id: CombatantId) => {
-			rollInitiativeUseCase(makeStore(), id, rollDice(), getCreature);
-		},
-		[makeStore, getCreature],
-	);
-
-	const handleRollAllInitiative = useCallback(() => {
-		const result = rollAllInitiativeUseCase(makeStore(), rollDice, getCreature);
-		if (!isDomainError(result) && result.skippedNoSource > 0) {
-			setRollSkippedCount(result.skippedNoSource);
-		}
-	}, [makeStore, getCreature]);
-
-	const handleViewStatBlock = useCallback(
-		(result: SearchResult) => {
-			const slug = result.name
-				.toLowerCase()
-				.replaceAll(/[^a-z0-9]+/g, "-")
-				.replaceAll(/(^-|-$)/g, "");
-			const cId = `${result.source.toLowerCase()}:${slug}` as CreatureId;
-			sidePanel.showCreature(cId);
-		},
-		[sidePanel.showCreature],
-	);
-
-	const handleStartBulkImport = useCallback(
-		(baseUrl: string) => {
-			bulkImport.startImport(
-				baseUrl,
-				fetchAndCacheSource,
-				isSourceCached,
-				refreshCache,
-			);
-		},
-		[bulkImport.startImport, fetchAndCacheSource, isSourceCached, refreshCache],
-	);
-
-	const handleBulkImportDone = useCallback(() => {
-		sidePanel.dismissPanel();
-		bulkImport.reset();
-	}, [sidePanel.dismissPanel, bulkImport.reset]);
-
-	const actionBarInputRef = useRef<HTMLInputElement>(null);
 	const playerCharacterRef = useRef<PlayerCharacterSectionHandle>(null);
+	const actionBarInputRef = useRef<HTMLInputElement>(null);
+	const activeRowRef = useRef<HTMLDivElement>(null);
 	const actionBarAnim = useActionBarAnimation(encounter.combatants.length);

-	// Auto-scroll to the active combatant when the turn changes
-	const activeRowRef = useRef<HTMLDivElement>(null);
+	// Auto-scroll to active combatant when turn changes
+	const activeIndex = encounter.activeIndex;
 	useEffect(() => {
+		if (activeIndex >= 0) {
 			activeRowRef.current?.scrollIntoView({
 				block: "nearest",
 				behavior: "smooth",
 			});
-	}, []);
+		}
+	}, [activeIndex]);

 	return (
 		<div className="flex h-dvh flex-col">
@@ -204,47 +47,27 @@ export function App() {
 						className={cn("shrink-0 pt-8", actionBarAnim.topBarClass)}
 						onAnimationEnd={actionBarAnim.onTopBarExitEnd}
 					>
-						<TurnNavigation
-							encounter={encounter}
-							onAdvanceTurn={advanceTurn}
-							onRetreatTurn={retreatTurn}
-							onClearEncounter={clearEncounter}
-						/>
+						<TurnNavigation />
 					</div>
 				)}

 				{isEmpty ? (
-					/* Empty state — ActionBar centered */
 					<div className="flex min-h-0 flex-1 items-center justify-center pt-8 pb-[15%]">
 						<div
 							className={cn("w-full", actionBarAnim.risingClass)}
 							onAnimationEnd={actionBarAnim.onRiseEnd}
 						>
 							<ActionBar
-								onAddCombatant={addCombatant}
-								onAddFromBestiary={handleAddFromBestiary}
-								bestiarySearch={search}
-								bestiaryLoaded={isLoaded}
-								onViewStatBlock={handleViewStatBlock}
-								onBulkImport={sidePanel.showBulkImport}
-								bulkImportDisabled={bulkImport.state.status === "loading"}
 								inputRef={actionBarInputRef}
-								playerCharacters={playerCharacters}
-								onAddFromPlayerCharacter={addFromPlayerCharacter}
 								onManagePlayers={() =>
 									playerCharacterRef.current?.openManagement()
 								}
-								onRollAllInitiative={handleRollAllInitiative}
-								showRollAllInitiative={hasCreatureCombatants}
-								rollAllInitiativeDisabled={!canRollAllInitiative}
-								onOpenSourceManager={sidePanel.showSourceManager}
 								autoFocus
 							/>
 						</div>
 					</div>
 				) : (
 					<>
-						{/* Scrollable area — combatant list */}
 						<div className="min-h-0 flex-1 overflow-y-auto">
 							<div className="flex flex-col px-2 py-2">
 								{encounter.combatants.map((c, i) => (
@@ -253,120 +76,51 @@ export function App() {
 										ref={i === encounter.activeIndex ? activeRowRef : null}
 										combatant={c}
 										isActive={i === encounter.activeIndex}
-										onRename={editCombatant}
-										onSetInitiative={setInitiative}
-										onRemove={removeCombatant}
-										onSetHp={setHp}
-										onAdjustHp={adjustHp}
-										onSetAc={setAc}
-										onToggleCondition={toggleCondition}
-										onToggleConcentration={toggleConcentration}
-										onShowStatBlock={
-											c.creatureId
-												? () => handleCombatantStatBlock(c.creatureId as string)
-												: undefined
-										}
-										onRollInitiative={
-											c.creatureId ? handleRollInitiative : undefined
-										}
 									/>
 								))}
 							</div>
 						</div>

-						{/* Action Bar — fixed at bottom */}
 						<div
 							className={cn("shrink-0 pb-8", actionBarAnim.settlingClass)}
 							onAnimationEnd={actionBarAnim.onSettleEnd}
 						>
 							<ActionBar
-								onAddCombatant={addCombatant}
-								onAddFromBestiary={handleAddFromBestiary}
-								bestiarySearch={search}
-								bestiaryLoaded={isLoaded}
-								onViewStatBlock={handleViewStatBlock}
-								onBulkImport={sidePanel.showBulkImport}
-								bulkImportDisabled={bulkImport.state.status === "loading"}
 								inputRef={actionBarInputRef}
-								playerCharacters={playerCharacters}
-								onAddFromPlayerCharacter={addFromPlayerCharacter}
 								onManagePlayers={() =>
 									playerCharacterRef.current?.openManagement()
 								}
-								onRollAllInitiative={handleRollAllInitiative}
-								showRollAllInitiative={hasCreatureCombatants}
-								rollAllInitiativeDisabled={!canRollAllInitiative}
-								onOpenSourceManager={sidePanel.showSourceManager}
 							/>
 						</div>
 					</>
 				)}
 			</div>

-			{/* Pinned Stat Block Panel (left) */}
 			{!!sidePanel.pinnedCreatureId && sidePanel.isWideDesktop && (
-				<StatBlockPanel
-					creatureId={sidePanel.pinnedCreatureId}
-					creature={pinnedCreature}
-					isSourceCached={isSourceCached}
-					fetchAndCacheSource={fetchAndCacheSource}
-					uploadAndCacheSource={uploadAndCacheSource}
-					refreshCache={refreshCache}
-					panelRole="pinned"
-					isCollapsed={false}
-					onToggleCollapse={() => {}}
-					onPin={() => {}}
-					onUnpin={sidePanel.unpin}
-					showPinButton={false}
-					side="left"
-					onDismiss={() => {}}
-				/>
+				<StatBlockPanel panelRole="pinned" side="left" />
 			)}

-			{/* Browse Stat Block Panel (right) */}
-			<StatBlockPanel
-				creatureId={sidePanel.selectedCreatureId}
-				creature={selectedCreature}
-				isSourceCached={isSourceCached}
-				fetchAndCacheSource={fetchAndCacheSource}
-				uploadAndCacheSource={uploadAndCacheSource}
-				refreshCache={refreshCache}
-				panelRole="browse"
-				isCollapsed={sidePanel.isRightPanelCollapsed}
-				onToggleCollapse={sidePanel.toggleCollapse}
-				onPin={sidePanel.togglePin}
-				onUnpin={() => {}}
-				showPinButton={sidePanel.isWideDesktop && !!selectedCreature}
-				side="right"
-				onDismiss={sidePanel.dismissPanel}
-				bulkImportMode={sidePanel.bulkImportMode}
-				bulkImportState={bulkImport.state}
-				onStartBulkImport={handleStartBulkImport}
-				onBulkImportDone={handleBulkImportDone}
-				sourceManagerMode={sidePanel.sourceManagerMode}
-			/>
+			<StatBlockPanel panelRole="browse" side="right" />

-			<BulkImportToasts
-				state={bulkImport.state}
-				visible={!sidePanel.bulkImportMode || sidePanel.isRightPanelCollapsed}
-				onReset={bulkImport.reset}
-			/>
+			<BulkImportToasts />

-			{rollSkippedCount > 0 && (
+			{rolls.rollSkippedCount > 0 && (
 				<Toast
-					message={`${rollSkippedCount} skipped — bestiary source not loaded`}
-					onDismiss={() => setRollSkippedCount(0)}
+					message={`${rolls.rollSkippedCount} skipped — bestiary source not loaded`}
+					onDismiss={rolls.dismissRollSkipped}
 					autoDismissMs={4000}
 				/>
 			)}

-			<PlayerCharacterSection
-				ref={playerCharacterRef}
-				characters={playerCharacters}
-				onCreateCharacter={createPlayerCharacter}
-				onEditCharacter={editPlayerCharacter}
-				onDeleteCharacter={deletePlayerCharacter}
+			{!!rolls.rollSingleSkipped && (
+				<Toast
+					message="Can't roll — bestiary source not loaded"
+					onDismiss={rolls.dismissRollSingleSkipped}
+					autoDismissMs={4000}
 				/>
+			)}
+
+			<PlayerCharacterSection ref={playerCharacterRef} />
 		</div>
 	);
 }
--- a/apps/web/src/tests/app-integration.test.tsx
+++ b/apps/web/src/tests/app-integration.test.tsx
@@ -4,7 +4,8 @@ import "@testing-library/jest-dom/vitest";
 import { cleanup, render, screen } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
 import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";
-import { App } from "../App";
+import { App } from "../App.js";
+import { AllProviders } from "./test-providers.js";

 // Mock persistence — no localStorage interaction
 vi.mock("../persistence/encounter-storage.js", () => ({
@@ -76,7 +77,7 @@ async function addCombatant(
 describe("App integration", () => {
 	it("adds a combatant and removes it, returning to empty state", async () => {
 		const user = userEvent.setup();
-		render(<App />);
+		render(<App />, { wrapper: AllProviders });

 		// Empty state: centered input visible, no TurnNavigation
 		expect(screen.getByPlaceholderText("+ Add combatants")).toBeInTheDocument();
@@ -109,7 +110,7 @@ describe("App integration", () => {

 	it("advances and retreats turns across two combatants", async () => {
 		const user = userEvent.setup();
-		render(<App />);
+		render(<App />, { wrapper: AllProviders });

 		await addCombatant(user, "Fighter");
 		await addCombatant(user, "Wizard");
@@ -137,7 +138,7 @@ describe("App integration", () => {

 	it("adds a combatant with HP, applies damage, and shows unconscious state", async () => {
 		const user = userEvent.setup();
-		render(<App />);
+		render(<App />, { wrapper: AllProviders });

 		await addCombatant(user, "Ogre", { maxHp: "59" });

--- a/apps/web/src/tests/stat-block-collapse-pin.test.tsx
+++ b/apps/web/src/tests/stat-block-collapse-pin.test.tsx
@@ -4,11 +4,33 @@ import "@testing-library/jest-dom/vitest";
 import type { Creature, CreatureId } from "@initiative/domain";
 import { cleanup, fireEvent, render, screen } from "@testing-library/react";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
-import { StatBlockPanel } from "../components/stat-block-panel";
+
+// Mock the context modules
+vi.mock("../contexts/side-panel-context.js", () => ({
+	useSidePanelContext: vi.fn(),
+}));
+
+vi.mock("../contexts/bestiary-context.js", () => ({
+	useBestiaryContext: vi.fn(),
+}));
+
+// Mock adapters to avoid IndexedDB
+vi.mock("../adapters/bestiary-index-adapter.js", () => ({
+	loadBestiaryIndex: () => ({ sources: {}, creatures: [] }),
+	getAllSourceCodes: () => [],
+	getDefaultFetchUrl: () => "",
+	getSourceDisplayName: (code: string) => code,
+}));
+
+import { StatBlockPanel } from "../components/stat-block-panel.js";
+import { useBestiaryContext } from "../contexts/bestiary-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
+
+const mockUseSidePanelContext = vi.mocked(useSidePanelContext);
+const mockUseBestiaryContext = vi.mocked(useBestiaryContext);

 const CLOSE_REGEX = /close/i;
 const COLLAPSE_REGEX = /collapse/i;
-
 const CREATURE_ID = "srd:goblin" as CreatureId;
 const CREATURE: Creature = {
 	id: CREATURE_ID,
@@ -44,41 +66,65 @@ function mockMatchMedia(matches: boolean) {
 	});
 }

-interface PanelProps {
+interface PanelOverrides {
 	creatureId?: CreatureId | null;
 	creature?: Creature | null;
 	panelRole?: "browse" | "pinned";
 	isCollapsed?: boolean;
-	onToggleCollapse?: () => void;
-	onPin?: () => void;
-	onUnpin?: () => void;
-	showPinButton?: boolean;
 	side?: "left" | "right";
-	onDismiss?: () => void;
 	bulkImportMode?: boolean;
 }

-function renderPanel(overrides: PanelProps = {}) {
-	const props = {
-		creatureId: CREATURE_ID,
-		creature: CREATURE,
+function setupMocks(overrides: PanelOverrides = {}) {
+	const panelRole = overrides.panelRole ?? "browse";
+	const creatureId = overrides.creatureId ?? CREATURE_ID;
+	const creature = overrides.creature ?? CREATURE;
+	const isCollapsed = overrides.isCollapsed ?? false;
+
+	const onToggleCollapse = vi.fn();
+	const onPin = vi.fn();
+	const onUnpin = vi.fn();
+	const onDismiss = vi.fn();
+
+	mockUseSidePanelContext.mockReturnValue({
+		selectedCreatureId: panelRole === "browse" ? creatureId : null,
+		pinnedCreatureId: panelRole === "pinned" ? creatureId : null,
+		isRightPanelCollapsed: panelRole === "browse" ? isCollapsed : false,
+		isWideDesktop: false,
+		bulkImportMode: overrides.bulkImportMode ?? false,
+		sourceManagerMode: false,
+		panelView: creatureId
+			? { mode: "creature" as const, creatureId }
+			: { mode: "closed" as const },
+		showCreature: vi.fn(),
+		updateCreature: vi.fn(),
+		showBulkImport: vi.fn(),
+		showSourceManager: vi.fn(),
+		dismissPanel: onDismiss,
+		toggleCollapse: onToggleCollapse,
+		togglePin: onPin,
+		unpin: onUnpin,
+	} as ReturnType<typeof useSidePanelContext>);
+
+	mockUseBestiaryContext.mockReturnValue({
+		getCreature: (id: CreatureId) => (id === creatureId ? creature : undefined),
 		isSourceCached: vi.fn().mockResolvedValue(true),
+		search: vi.fn().mockReturnValue([]),
+		isLoaded: true,
 		fetchAndCacheSource: vi.fn(),
 		uploadAndCacheSource: vi.fn(),
 		refreshCache: vi.fn(),
-		panelRole: "browse" as const,
-		isCollapsed: false,
-		onToggleCollapse: vi.fn(),
-		onPin: vi.fn(),
-		onUnpin: vi.fn(),
-		showPinButton: false,
-		side: "right" as const,
-		onDismiss: vi.fn(),
-		...overrides,
-	};
+	} as ReturnType<typeof useBestiaryContext>);

-	render(<StatBlockPanel {...props} />);
-	return props;
+	return { onToggleCollapse, onPin, onUnpin, onDismiss };
+}
+
+function renderPanel(overrides: PanelOverrides = {}) {
+	const callbacks = setupMocks(overrides);
+	const panelRole = overrides.panelRole ?? "browse";
+	const side = overrides.side ?? (panelRole === "pinned" ? "left" : "right");
+	render(<StatBlockPanel panelRole={panelRole} side={side} />);
+	return callbacks;
 }

 describe("Stat Block Panel Collapse/Expand and Pin", () => {
@@ -113,19 +159,19 @@ describe("Stat Block Panel Collapse/Expand and Pin", () => {
 		});

 		it("calls onToggleCollapse when collapse button is clicked", () => {
-			const props = renderPanel();
+			const callbacks = renderPanel();
 			fireEvent.click(
 				screen.getByRole("button", { name: "Collapse stat block panel" }),
 			);
-			expect(props.onToggleCollapse).toHaveBeenCalledTimes(1);
+			expect(callbacks.onToggleCollapse).toHaveBeenCalledTimes(1);
 		});

 		it("calls onToggleCollapse when collapsed tab is clicked", () => {
-			const props = renderPanel({ isCollapsed: true });
+			const callbacks = renderPanel({ isCollapsed: true });
 			fireEvent.click(
 				screen.getByRole("button", { name: "Expand stat block panel" }),
 			);
-			expect(props.onToggleCollapse).toHaveBeenCalledTimes(1);
+			expect(callbacks.onToggleCollapse).toHaveBeenCalledTimes(1);
 		});

 		it("applies translate-x class when collapsed (right side)", () => {
@@ -163,53 +209,58 @@ describe("Stat Block Panel Collapse/Expand and Pin", () => {
 		});

 		it("calls onDismiss when backdrop is clicked on mobile", () => {
-			const props = renderPanel();
+			const callbacks = renderPanel();
 			fireEvent.click(screen.getByRole("button", { name: "Close stat block" }));
-			expect(props.onDismiss).toHaveBeenCalledTimes(1);
+			expect(callbacks.onDismiss).toHaveBeenCalledTimes(1);
 		});

 		it("does not render pinned panel on mobile", () => {
 			const { container } = render(
-				<StatBlockPanel
-					creatureId={CREATURE_ID}
-					creature={CREATURE}
-					isSourceCached={vi.fn().mockResolvedValue(true)}
-					fetchAndCacheSource={vi.fn()}
-					uploadAndCacheSource={vi.fn()}
-					refreshCache={vi.fn()}
-					panelRole="pinned"
-					isCollapsed={false}
-					onToggleCollapse={vi.fn()}
-					onPin={vi.fn()}
-					onUnpin={vi.fn()}
-					showPinButton={false}
-					side="left"
-					onDismiss={vi.fn()}
-				/>,
+				(() => {
+					setupMocks({ panelRole: "pinned" });
+					return <StatBlockPanel panelRole="pinned" side="left" />;
+				})(),
 			);
 			expect(container.innerHTML).toBe("");
 		});
 	});

 	describe("US2: Pin and Unpin", () => {
-		it("shows pin button when showPinButton is true on desktop", () => {
-			renderPanel({ showPinButton: true });
+		it("shows pin button when isWideDesktop is true on desktop", () => {
+			setupMocks();
+			// Override to set isWideDesktop
+			const ctx = mockUseSidePanelContext.mock.results[0]?.value as ReturnType<
+				typeof useSidePanelContext
+			>;
+			mockUseSidePanelContext.mockReturnValue({
+				...ctx,
+				isWideDesktop: true,
+			});
+			render(<StatBlockPanel panelRole="browse" side="right" />);
 			expect(
 				screen.getByRole("button", { name: "Pin creature" }),
 			).toBeInTheDocument();
 		});

-		it("hides pin button when showPinButton is false", () => {
-			renderPanel({ showPinButton: false });
+		it("hides pin button when isWideDesktop is false", () => {
+			renderPanel();
 			expect(
 				screen.queryByRole("button", { name: "Pin creature" }),
 			).not.toBeInTheDocument();
 		});

 		it("calls onPin when pin button is clicked", () => {
-			const props = renderPanel({ showPinButton: true });
+			setupMocks();
+			const ctx = mockUseSidePanelContext.mock.results[0]?.value as ReturnType<
+				typeof useSidePanelContext
+			>;
+			mockUseSidePanelContext.mockReturnValue({
+				...ctx,
+				isWideDesktop: true,
+			});
+			render(<StatBlockPanel panelRole="browse" side="right" />);
 			fireEvent.click(screen.getByRole("button", { name: "Pin creature" }));
-			expect(props.onPin).toHaveBeenCalledTimes(1);
+			expect(ctx.togglePin).toHaveBeenCalledTimes(1);
 		});

 		it("shows unpin button for pinned role", () => {
@@ -220,9 +271,9 @@ describe("Stat Block Panel Collapse/Expand and Pin", () => {
 		});

 		it("calls onUnpin when unpin button is clicked", () => {
-			const props = renderPanel({ panelRole: "pinned", side: "left" });
+			const callbacks = renderPanel({ panelRole: "pinned", side: "left" });
 			fireEvent.click(screen.getByRole("button", { name: "Unpin creature" }));
-			expect(props.onUnpin).toHaveBeenCalledTimes(1);
+			expect(callbacks.onUnpin).toHaveBeenCalledTimes(1);
 		});

 		it("positions pinned panel on the left side", () => {
@@ -255,7 +306,7 @@ describe("Stat Block Panel Collapse/Expand and Pin", () => {
 		});

 		it("pinned panel is always expanded (no translate offset)", () => {
-			renderPanel({ panelRole: "pinned", side: "left", isCollapsed: false });
+			renderPanel({ panelRole: "pinned", side: "left" });
 			const unpinBtn = screen.getByRole("button", {
 				name: "Unpin creature",
 			});
--- a/apps/web/src/tests/test-providers.tsx
+++ b/apps/web/src/tests/test-providers.tsx
@@ -0,0 +1,28 @@
+import type { ReactNode } from "react";
+import {
+	BestiaryProvider,
+	BulkImportProvider,
+	EncounterProvider,
+	InitiativeRollsProvider,
+	PlayerCharactersProvider,
+	SidePanelProvider,
+	ThemeProvider,
+} from "../contexts/index.js";
+
+export function AllProviders({ children }: { children: ReactNode }) {
+	return (
+		<ThemeProvider>
+			<EncounterProvider>
+				<BestiaryProvider>
+					<PlayerCharactersProvider>
+						<BulkImportProvider>
+							<SidePanelProvider>
+								<InitiativeRollsProvider>{children}</InitiativeRollsProvider>
+							</SidePanelProvider>
+						</BulkImportProvider>
+					</PlayerCharactersProvider>
+				</BestiaryProvider>
+			</EncounterProvider>
+		</ThemeProvider>
+	);
+}
--- a/apps/web/src/components/tests/action-bar.test.tsx
+++ b/apps/web/src/components/tests/action-bar.test.tsx
@@ -3,21 +3,59 @@ import "@testing-library/jest-dom/vitest";

 import { cleanup, render, screen } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
-import { afterEach, describe, expect, it, vi } from "vitest";
-import { ActionBar } from "../action-bar";
+import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";
+import { AllProviders } from "../../__tests__/test-providers.js";
+import { ActionBar } from "../action-bar.js";
+
+// Mock persistence — no localStorage interaction
+vi.mock("../../persistence/encounter-storage.js", () => ({
+	loadEncounter: () => null,
+	saveEncounter: () => {},
+}));
+
+vi.mock("../../persistence/player-character-storage.js", () => ({
+	loadPlayerCharacters: () => [],
+	savePlayerCharacters: () => {},
+}));
+
+// Mock bestiary — no IndexedDB or JSON index
+vi.mock("../../adapters/bestiary-cache.js", () => ({
+	loadAllCachedCreatures: () => Promise.resolve(new Map()),
+	isSourceCached: () => Promise.resolve(false),
+	cacheSource: () => Promise.resolve(),
+	getCachedSources: () => Promise.resolve([]),
+	clearSource: () => Promise.resolve(),
+	clearAll: () => Promise.resolve(),
+}));
+
+vi.mock("../../adapters/bestiary-index-adapter.js", () => ({
+	loadBestiaryIndex: () => ({ sources: {}, creatures: [] }),
+	getAllSourceCodes: () => [],
+	getDefaultFetchUrl: () => "",
+	getSourceDisplayName: (code: string) => code,
+}));
+
+// DOM API stubs — jsdom doesn't implement these
+beforeAll(() => {
+	Object.defineProperty(globalThis, "matchMedia", {
+		writable: true,
+		value: vi.fn().mockImplementation((query: string) => ({
+			matches: false,
+			media: query,
+			onchange: null,
+			addListener: vi.fn(),
+			removeListener: vi.fn(),
+			addEventListener: vi.fn(),
+			removeEventListener: vi.fn(),
+			dispatchEvent: vi.fn(),
+		})),
+	});
+});

 afterEach(cleanup);

-const defaultProps = {
-	onAddCombatant: vi.fn(),
-	onAddFromBestiary: vi.fn(),
-	bestiarySearch: () => [],
-	bestiaryLoaded: false,
-};
-
-function renderBar(overrides: Partial<Parameters<typeof ActionBar>[0]> = {}) {
-	const props = { ...defaultProps, ...overrides };
-	return render(<ActionBar {...props} />);
+function renderBar(props: Partial<Parameters<typeof ActionBar>[0]> = {}) {
+	return render(<ActionBar {...props} />, { wrapper: AllProviders });
 }

 describe("ActionBar", () => {
@@ -26,26 +64,26 @@ describe("ActionBar", () => {
 		expect(screen.getByPlaceholderText("+ Add combatants")).toBeInTheDocument();
 	});

-	it("submitting with a name calls onAddCombatant", async () => {
+	it("submitting with a name adds a combatant", async () => {
 		const user = userEvent.setup();
-		const onAddCombatant = vi.fn();
-		renderBar({ onAddCombatant });
+		renderBar();
 		const input = screen.getByPlaceholderText("+ Add combatants");
 		await user.type(input, "Goblin");
 		// The Add button appears when name >= 2 chars and no suggestions
 		const addButton = screen.getByRole("button", { name: "Add" });
 		await user.click(addButton);
-		expect(onAddCombatant).toHaveBeenCalledWith("Goblin", undefined);
+		// Input is cleared after adding (context handles the state)
+		expect(input).toHaveValue("");
 	});

 	it("submitting with empty name does nothing", async () => {
 		const user = userEvent.setup();
-		const onAddCombatant = vi.fn();
-		renderBar({ onAddCombatant });
+		renderBar();
 		// Submit the form directly (Enter on empty input)
 		const input = screen.getByPlaceholderText("+ Add combatants");
 		await user.type(input, "{Enter}");
-		expect(onAddCombatant).not.toHaveBeenCalled();
+		// Input stays empty, no error
+		expect(input).toHaveValue("");
 	});

 	it("shows custom fields (Init, AC, MaxHP) when name >= 2 chars and no bestiary suggestions", async () => {
@@ -66,23 +104,18 @@ describe("ActionBar", () => {
 		expect(screen.getByRole("button", { name: "Add" })).toBeInTheDocument();
 	});

-	it("shows roll all initiative button when showRollAllInitiative is true", () => {
-		const onRollAllInitiative = vi.fn();
-		renderBar({ showRollAllInitiative: true, onRollAllInitiative });
+	it("does not show roll all initiative button when no creature combatants", () => {
+		renderBar();
 		expect(
-			screen.getByRole("button", { name: "Roll all initiative" }),
-		).toBeInTheDocument();
+			screen.queryByRole("button", { name: "Roll all initiative" }),
+		).not.toBeInTheDocument();
 	});

-	it("roll all initiative button is disabled when rollAllInitiativeDisabled is true", () => {
-		const onRollAllInitiative = vi.fn();
-		renderBar({
-			showRollAllInitiative: true,
-			onRollAllInitiative,
-			rollAllInitiativeDisabled: true,
-		});
+	it("shows overflow menu items", () => {
+		renderBar({ onManagePlayers: vi.fn() });
+		// The overflow menu should be present (it contains Player Characters etc.)
 		expect(
-			screen.getByRole("button", { name: "Roll all initiative" }),
-		).toBeDisabled();
+			screen.getByRole("button", { name: "More actions" }),
+		).toBeInTheDocument();
 	});
 });
--- a/apps/web/src/components/tests/combatant-row.test.tsx
+++ b/apps/web/src/components/tests/combatant-row.test.tsx
@@ -1,33 +1,65 @@
 // @vitest-environment jsdom
 import "@testing-library/jest-dom/vitest";

-import { combatantId } from "@initiative/domain";
+import { type CreatureId, combatantId } from "@initiative/domain";
 import { cleanup, render, screen } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
-import { afterEach, describe, expect, it, vi } from "vitest";
-import { CombatantRow } from "../combatant-row";
-import { PLAYER_COLOR_HEX } from "../player-icon-map";
+import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";
+import { AllProviders } from "../../__tests__/test-providers.js";
+import { CombatantRow } from "../combatant-row.js";
+import { PLAYER_COLOR_HEX } from "../player-icon-map.js";
+
+// Mock persistence — no localStorage interaction
+vi.mock("../../persistence/encounter-storage.js", () => ({
+	loadEncounter: () => null,
+	saveEncounter: () => {},
+}));
+
+vi.mock("../../persistence/player-character-storage.js", () => ({
+	loadPlayerCharacters: () => [],
+	savePlayerCharacters: () => {},
+}));
+
+// Mock bestiary — no IndexedDB or JSON index
+vi.mock("../../adapters/bestiary-cache.js", () => ({
+	loadAllCachedCreatures: () => Promise.resolve(new Map()),
+	isSourceCached: () => Promise.resolve(false),
+	cacheSource: () => Promise.resolve(),
+	getCachedSources: () => Promise.resolve([]),
+	clearSource: () => Promise.resolve(),
+	clearAll: () => Promise.resolve(),
+}));
+
+vi.mock("../../adapters/bestiary-index-adapter.js", () => ({
+	loadBestiaryIndex: () => ({ sources: {}, creatures: [] }),
+	getAllSourceCodes: () => [],
+	getDefaultFetchUrl: () => "",
+	getSourceDisplayName: (code: string) => code,
+}));
+
+// DOM API stubs
+beforeAll(() => {
+	Object.defineProperty(globalThis, "matchMedia", {
+		writable: true,
+		value: vi.fn().mockImplementation((query: string) => ({
+			matches: false,
+			media: query,
+			onchange: null,
+			addListener: vi.fn(),
+			removeListener: vi.fn(),
+			addEventListener: vi.fn(),
+			removeEventListener: vi.fn(),
+			dispatchEvent: vi.fn(),
+		})),
+	});
+});

 afterEach(cleanup);

-const defaultProps = {
-	onRename: vi.fn(),
-	onSetInitiative: vi.fn(),
-	onRemove: vi.fn(),
-	onSetHp: vi.fn(),
-	onAdjustHp: vi.fn(),
-	onSetAc: vi.fn(),
-	onToggleCondition: vi.fn(),
-	onToggleConcentration: vi.fn(),
-};
-
 function renderRow(
 	overrides: Partial<{
 		combatant: Parameters<typeof CombatantRow>[0]["combatant"];
 		isActive: boolean;
-		onRollInitiative: (id: ReturnType<typeof combatantId>) => void;
-		onRemove: (id: ReturnType<typeof combatantId>) => void;
-		onShowStatBlock: () => void;
 	}> = {},
 ) {
 	const combatant = overrides.combatant ?? {
@@ -38,15 +70,13 @@ function renderRow(
 		currentHp: 10,
 		ac: 13,
 	};
-	const props = {
-		...defaultProps,
-		combatant,
-		isActive: overrides.isActive ?? false,
-		onRollInitiative: overrides.onRollInitiative,
-		onShowStatBlock: overrides.onShowStatBlock,
-		onRemove: overrides.onRemove ?? defaultProps.onRemove,
-	};
-	return render(<CombatantRow {...props} />);
+	return render(
+		<CombatantRow
+			combatant={combatant}
+			isActive={overrides.isActive ?? false}
+		/>,
+		{ wrapper: AllProviders },
+	);
 }

 describe("CombatantRow", () => {
@@ -75,7 +105,7 @@ describe("CombatantRow", () => {
 	it("active combatant gets active border styling", () => {
 		const { container } = renderRow({ isActive: true });
 		const row = container.firstElementChild;
-		expect(row?.className).toContain("border-accent/40");
+		expect(row?.className).toContain("border-active-row-border");
 	});

 	it("unconscious combatant (currentHp === 0) gets dimmed styling", () => {
@@ -132,10 +162,9 @@ describe("CombatantRow", () => {
 		expect(svgIcon).toHaveStyle({ color: PLAYER_COLOR_HEX.red });
 	});

-	it("remove button calls onRemove after confirmation", async () => {
+	it("remove button removes after confirmation", async () => {
 		const user = userEvent.setup();
-		const onRemove = vi.fn();
-		renderRow({ onRemove });
+		renderRow();
 		const removeBtn = screen.getByRole("button", {
 			name: "Remove combatant",
 		});
@@ -146,16 +175,19 @@ describe("CombatantRow", () => {
 			name: "Confirm remove combatant",
 		});
 		await user.click(confirmBtn);
-		expect(onRemove).toHaveBeenCalledWith(combatantId("1"));
+		// After confirming, the button returns to its initial state
+		expect(
+			screen.queryByRole("button", { name: "Confirm remove combatant" }),
+		).not.toBeInTheDocument();
 	});

-	it("shows d20 roll button when initiative is undefined and onRollInitiative is provided", () => {
+	it("shows d20 roll button when initiative is undefined and combatant has creatureId", () => {
 		renderRow({
 			combatant: {
 				id: combatantId("1"),
 				name: "Goblin",
+				creatureId: "srd:goblin" as CreatureId,
 			},
-			onRollInitiative: vi.fn(),
 		});
 		expect(
 			screen.getByRole("button", { name: "Roll initiative" }),
--- a/apps/web/src/components/tests/source-manager.test.tsx
+++ b/apps/web/src/components/tests/source-manager.test.tsx
@@ -11,28 +11,51 @@ vi.mock("../../adapters/bestiary-cache.js", () => ({
 	clearAll: vi.fn(),
 }));

+// Mock the context module
+vi.mock("../../contexts/bestiary-context.js", () => ({
+	useBestiaryContext: vi.fn(),
+}));
+
 import * as bestiaryCache from "../../adapters/bestiary-cache.js";
-import { SourceManager } from "../source-manager";
+import { useBestiaryContext } from "../../contexts/bestiary-context.js";
+import { SourceManager } from "../source-manager.js";

 const mockGetCachedSources = vi.mocked(bestiaryCache.getCachedSources);
 const mockClearSource = vi.mocked(bestiaryCache.clearSource);
 const mockClearAll = vi.mocked(bestiaryCache.clearAll);
+const mockUseBestiaryContext = vi.mocked(useBestiaryContext);

 afterEach(() => {
 	cleanup();
 	vi.clearAllMocks();
 });

+function setupMockContext() {
+	const refreshCache = vi.fn().mockResolvedValue(undefined);
+	mockUseBestiaryContext.mockReturnValue({
+		refreshCache,
+		search: vi.fn().mockReturnValue([]),
+		getCreature: vi.fn(),
+		isLoaded: true,
+		isSourceCached: vi.fn().mockResolvedValue(false),
+		fetchAndCacheSource: vi.fn(),
+		uploadAndCacheSource: vi.fn(),
+	} as ReturnType<typeof useBestiaryContext>);
+	return { refreshCache };
+}
+
 describe("SourceManager", () => {
 	it("shows 'No cached sources' empty state when no sources", async () => {
+		setupMockContext();
 		mockGetCachedSources.mockResolvedValue([]);
-		render(<SourceManager onCacheCleared={vi.fn()} />);
+		render(<SourceManager />);
 		await waitFor(() => {
 			expect(screen.getByText("No cached sources")).toBeInTheDocument();
 		});
 	});

 	it("lists cached sources with display name and creature count", async () => {
+		setupMockContext();
 		mockGetCachedSources.mockResolvedValue([
 			{
 				sourceCode: "mm",
@@ -47,7 +70,7 @@ describe("SourceManager", () => {
 				cachedAt: Date.now(),
 			},
 		]);
-		render(<SourceManager onCacheCleared={vi.fn()} />);
+		render(<SourceManager />);
 		await waitFor(() => {
 			expect(screen.getByText("Monster Manual")).toBeInTheDocument();
 		});
@@ -56,9 +79,9 @@ describe("SourceManager", () => {
 		expect(screen.getByText("100 creatures")).toBeInTheDocument();
 	});

-	it("Clear All button calls cache clear and onCacheCleared", async () => {
+	it("Clear All button calls cache clear and refreshCache", async () => {
 		const user = userEvent.setup();
-		const onCacheCleared = vi.fn();
+		const { refreshCache } = setupMockContext();
 		mockGetCachedSources
 			.mockResolvedValueOnce([
 				{
@@ -70,7 +93,7 @@ describe("SourceManager", () => {
 			])
 			.mockResolvedValue([]);
 		mockClearAll.mockResolvedValue(undefined);
-		render(<SourceManager onCacheCleared={onCacheCleared} />);
+		render(<SourceManager />);

 		await waitFor(() => {
 			expect(screen.getByText("Monster Manual")).toBeInTheDocument();
@@ -80,12 +103,12 @@ describe("SourceManager", () => {
 		await waitFor(() => {
 			expect(mockClearAll).toHaveBeenCalled();
 		});
-		expect(onCacheCleared).toHaveBeenCalled();
+		expect(refreshCache).toHaveBeenCalled();
 	});

 	it("individual source delete button calls clear for that source", async () => {
 		const user = userEvent.setup();
-		const onCacheCleared = vi.fn();
+		const { refreshCache } = setupMockContext();
 		mockGetCachedSources
 			.mockResolvedValueOnce([
 				{
@@ -111,7 +134,7 @@ describe("SourceManager", () => {
 			]);
 		mockClearSource.mockResolvedValue(undefined);

-		render(<SourceManager onCacheCleared={onCacheCleared} />);
+		render(<SourceManager />);
 		await waitFor(() => {
 			expect(screen.getByText("Monster Manual")).toBeInTheDocument();
 		});
@@ -122,6 +145,6 @@ describe("SourceManager", () => {
 		await waitFor(() => {
 			expect(mockClearSource).toHaveBeenCalledWith("mm");
 		});
-		expect(onCacheCleared).toHaveBeenCalled();
+		expect(refreshCache).toHaveBeenCalled();
 	});
 });
--- a/apps/web/src/components/tests/turn-navigation.test.tsx
+++ b/apps/web/src/components/tests/turn-navigation.test.tsx
@@ -5,11 +5,23 @@ import type { Encounter } from "@initiative/domain";
 import { combatantId } from "@initiative/domain";
 import { cleanup, render, screen } from "@testing-library/react";
 import { afterEach, describe, expect, it, vi } from "vitest";
-import { TurnNavigation } from "../turn-navigation";

-afterEach(cleanup);
+// Mock the context module
+vi.mock("../../contexts/encounter-context.js", () => ({
+	useEncounterContext: vi.fn(),
+}));

-function renderNav(overrides: Partial<Encounter> = {}) {
+import { useEncounterContext } from "../../contexts/encounter-context.js";
+import { TurnNavigation } from "../turn-navigation.js";
+
+const mockUseEncounterContext = vi.mocked(useEncounterContext);
+
+afterEach(() => {
+	cleanup();
+	vi.clearAllMocks();
+});
+
+function mockContext(overrides: Partial<Encounter> = {}) {
 	const encounter: Encounter = {
 		combatants: [
 			{ id: combatantId("1"), name: "Goblin" },
@@ -20,14 +32,38 @@ function renderNav(overrides: Partial<Encounter> = {}) {
 		...overrides,
 	};

-	return render(
-		<TurnNavigation
-			encounter={encounter}
-			onAdvanceTurn={vi.fn()}
-			onRetreatTurn={vi.fn()}
-			onClearEncounter={vi.fn()}
-		/>,
+	const value = {
+		encounter,
+		advanceTurn: vi.fn(),
+		retreatTurn: vi.fn(),
+		clearEncounter: vi.fn(),
+		isEmpty: encounter.combatants.length === 0,
+		hasCreatureCombatants: false,
+		canRollAllInitiative: false,
+		addCombatant: vi.fn(),
+		removeCombatant: vi.fn(),
+		editCombatant: vi.fn(),
+		setInitiative: vi.fn(),
+		setHp: vi.fn(),
+		adjustHp: vi.fn(),
+		setAc: vi.fn(),
+		toggleCondition: vi.fn(),
+		toggleConcentration: vi.fn(),
+		addFromBestiary: vi.fn(),
+		addFromPlayerCharacter: vi.fn(),
+		makeStore: vi.fn(),
+		events: [],
+	};
+
+	mockUseEncounterContext.mockReturnValue(
+		value as ReturnType<typeof useEncounterContext>,
 	);
+	return value;
+}
+
+function renderNav(overrides: Partial<Encounter> = {}) {
+	mockContext(overrides);
+	return render(<TurnNavigation />);
 }

 describe("TurnNavigation", () => {
@@ -49,7 +85,7 @@ describe("TurnNavigation", () => {

 		it("does not render an em dash between round and name", () => {
 			const { container } = renderNav();
-			expect(container.textContent).not.toContain("—");
+			expect(container.textContent).not.toContain("\u2014");
 		});

 		it("round badge and combatant name are siblings in the center area", () => {
@@ -60,69 +96,27 @@ describe("TurnNavigation", () => {
 		});

 		it("updates the round badge when round changes", () => {
-			const { rerender } = render(
-				<TurnNavigation
-					encounter={{
-						combatants: [{ id: combatantId("1"), name: "Goblin" }],
-						activeIndex: 0,
-						roundNumber: 2,
-					}}
-					onAdvanceTurn={vi.fn()}
-					onRetreatTurn={vi.fn()}
-					onClearEncounter={vi.fn()}
-				/>,
-			);
+			mockContext({ roundNumber: 2 });
+			const { rerender } = render(<TurnNavigation />);
 			expect(screen.getByText("R2")).toBeInTheDocument();

-			rerender(
-				<TurnNavigation
-					encounter={{
-						combatants: [{ id: combatantId("1"), name: "Goblin" }],
-						activeIndex: 0,
-						roundNumber: 3,
-					}}
-					onAdvanceTurn={vi.fn()}
-					onRetreatTurn={vi.fn()}
-					onClearEncounter={vi.fn()}
-				/>,
-			);
+			mockContext({ roundNumber: 3 });
+			rerender(<TurnNavigation />);
 			expect(screen.getByText("R3")).toBeInTheDocument();
 			expect(screen.queryByText("R2")).not.toBeInTheDocument();
 		});

 		it("renders the next combatant name when turn advances", () => {
-			const { rerender } = render(
-				<TurnNavigation
-					encounter={{
-						combatants: [
+			const combatants = [
 				{ id: combatantId("1"), name: "Goblin" },
 				{ id: combatantId("2"), name: "Conjurer" },
-						],
-						activeIndex: 0,
-						roundNumber: 1,
-					}}
-					onAdvanceTurn={vi.fn()}
-					onRetreatTurn={vi.fn()}
-					onClearEncounter={vi.fn()}
-				/>,
-			);
+			];
+			mockContext({ combatants, activeIndex: 0 });
+			const { rerender } = render(<TurnNavigation />);
 			expect(screen.getByText("Goblin")).toBeInTheDocument();

-			rerender(
-				<TurnNavigation
-					encounter={{
-						combatants: [
-							{ id: combatantId("1"), name: "Goblin" },
-							{ id: combatantId("2"), name: "Conjurer" },
-						],
-						activeIndex: 1,
-						roundNumber: 1,
-					}}
-					onAdvanceTurn={vi.fn()}
-					onRetreatTurn={vi.fn()}
-					onClearEncounter={vi.fn()}
-				/>,
-			);
+			mockContext({ combatants, activeIndex: 1 });
+			rerender(<TurnNavigation />);
 			expect(screen.getByText("Conjurer")).toBeInTheDocument();
 		});
 	});
--- a/apps/web/src/components/action-bar.tsx
+++ b/apps/web/src/components/action-bar.tsx
@@ -1,4 +1,4 @@
-import type { PlayerCharacter } from "@initiative/domain";
+import type { CreatureId, PlayerCharacter } from "@initiative/domain";
 import {
 	Check,
 	Eye,
@@ -6,14 +6,31 @@ import {
 	Import,
 	Library,
 	Minus,
+	Monitor,
+	Moon,
 	Plus,
+	Sun,
 	Users,
 } from "lucide-react";
-import React, { type RefObject, useDeferredValue, useState } from "react";
-import type { SearchResult } from "../hooks/use-bestiary.js";
+import React, {
+	type RefObject,
+	useCallback,
+	useDeferredValue,
+	useState,
+} from "react";
+import type { SearchResult } from "../contexts/bestiary-context.js";
+import { useBestiaryContext } from "../contexts/bestiary-context.js";
+import { useBulkImportContext } from "../contexts/bulk-import-context.js";
+import { useEncounterContext } from "../contexts/encounter-context.js";
+import { useInitiativeRollsContext } from "../contexts/initiative-rolls-context.js";
+import { usePlayerCharactersContext } from "../contexts/player-characters-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
+import { useThemeContext } from "../contexts/theme-context.js";
+import { useLongPress } from "../hooks/use-long-press.js";
 import { cn } from "../lib/utils.js";
 import { D20Icon } from "./d20-icon.js";
-import { PLAYER_COLOR_HEX, PLAYER_ICON_MAP } from "./player-icon-map";
+import { PLAYER_COLOR_HEX, PLAYER_ICON_MAP } from "./player-icon-map.js";
+import { RollModeMenu } from "./roll-mode-menu.js";
 import { Button } from "./ui/button.js";
 import { Input } from "./ui/input.js";
 import { OverflowMenu, type OverflowMenuItem } from "./ui/overflow-menu.js";
@@ -24,25 +41,9 @@ interface QueuedCreature {
 }

 interface ActionBarProps {
-	onAddCombatant: (
-		name: string,
-		opts?: { initiative?: number; ac?: number; maxHp?: number },
-	) => void;
-	onAddFromBestiary: (result: SearchResult) => void;
-	bestiarySearch: (query: string) => SearchResult[];
-	bestiaryLoaded: boolean;
-	onViewStatBlock?: (result: SearchResult) => void;
-	onBulkImport?: () => void;
-	bulkImportDisabled?: boolean;
 	inputRef?: RefObject<HTMLInputElement | null>;
-	playerCharacters?: readonly PlayerCharacter[];
-	onAddFromPlayerCharacter?: (pc: PlayerCharacter) => void;
-	onManagePlayers?: () => void;
-	onRollAllInitiative?: () => void;
-	showRollAllInitiative?: boolean;
-	rollAllInitiativeDisabled?: boolean;
-	onOpenSourceManager?: () => void;
 	autoFocus?: boolean;
+	onManagePlayers?: () => void;
 }

 function creatureKey(r: SearchResult): string {
@@ -171,7 +172,7 @@ function AddModeSuggestions({
 													>
 														<Minus className="h-3 w-3" />
 													</button>
-													<span className="min-w-5 rounded-full bg-accent px-1.5 py-0.5 text-center font-medium text-foreground">
+													<span className="min-w-5 rounded-full bg-accent px-1.5 py-0.5 text-center font-medium text-primary-foreground">
 														{queued.count}
 													</span>
 													<button
@@ -215,12 +216,26 @@ function AddModeSuggestions({
 	);
 }

+const THEME_ICONS = {
+	system: Monitor,
+	light: Sun,
+	dark: Moon,
+} as const;
+
+const THEME_LABELS = {
+	system: "Theme: System",
+	light: "Theme: Light",
+	dark: "Theme: Dark",
+} as const;
+
 function buildOverflowItems(opts: {
 	onManagePlayers?: () => void;
 	onOpenSourceManager?: () => void;
 	bestiaryLoaded: boolean;
 	onBulkImport?: () => void;
 	bulkImportDisabled?: boolean;
+	themePreference?: "system" | "light" | "dark";
+	onCycleTheme?: () => void;
 }): OverflowMenuItem[] {
 	const items: OverflowMenuItem[] = [];
 	if (opts.onManagePlayers) {
@@ -245,27 +260,62 @@ function buildOverflowItems(opts: {
 			disabled: opts.bulkImportDisabled,
 		});
 	}
+	if (opts.onCycleTheme) {
+		const pref = opts.themePreference ?? "system";
+		const ThemeIcon = THEME_ICONS[pref];
+		items.push({
+			icon: <ThemeIcon className="h-4 w-4" />,
+			label: THEME_LABELS[pref],
+			onClick: opts.onCycleTheme,
+			keepOpen: true,
+		});
+	}
 	return items;
 }

 export function ActionBar({
-	onAddCombatant,
-	onAddFromBestiary,
-	bestiarySearch,
-	bestiaryLoaded,
-	onViewStatBlock,
-	onBulkImport,
-	bulkImportDisabled,
 	inputRef,
-	playerCharacters,
-	onAddFromPlayerCharacter,
-	onManagePlayers,
-	onRollAllInitiative,
-	showRollAllInitiative,
-	rollAllInitiativeDisabled,
-	onOpenSourceManager,
 	autoFocus,
+	onManagePlayers,
 }: Readonly<ActionBarProps>) {
+	const {
+		addCombatant,
+		addFromBestiary,
+		addFromPlayerCharacter,
+		hasCreatureCombatants,
+		canRollAllInitiative,
+	} = useEncounterContext();
+	const { search: bestiarySearch, isLoaded: bestiaryLoaded } =
+		useBestiaryContext();
+	const { characters: playerCharacters } = usePlayerCharactersContext();
+	const { showBulkImport, showSourceManager, showCreature, panelView } =
+		useSidePanelContext();
+	const { preference: themePreference, cycleTheme } = useThemeContext();
+	const { handleRollAllInitiative } = useInitiativeRollsContext();
+	const { state: bulkImportState } = useBulkImportContext();
+
+	const handleAddFromBestiary = useCallback(
+		(result: SearchResult) => {
+			const creatureId = addFromBestiary(result);
+			if (creatureId && panelView.mode === "closed") {
+				showCreature(creatureId);
+			}
+		},
+		[addFromBestiary, panelView.mode, showCreature],
+	);
+
+	const handleViewStatBlock = useCallback(
+		(result: SearchResult) => {
+			const slug = result.name
+				.toLowerCase()
+				.replaceAll(/[^a-z0-9]+/g, "-")
+				.replaceAll(/(^-|-$)/g, "");
+			const cId = `${result.source.toLowerCase()}:${slug}` as CreatureId;
+			showCreature(cId);
+		},
+		[showCreature],
+	);
+
 	const [nameInput, setNameInput] = useState("");
 	const [suggestions, setSuggestions] = useState<SearchResult[]>([]);
 	const [pcMatches, setPcMatches] = useState<PlayerCharacter[]>([]);
@@ -302,7 +352,7 @@ export function ActionBar({
 	const confirmQueued = () => {
 		if (!queued) return;
 		for (let i = 0; i < queued.count; i++) {
-			onAddFromBestiary(queued.result);
+			handleAddFromBestiary(queued.result);
 		}
 		clearInput();
 	};
@@ -328,7 +378,7 @@ export function ActionBar({
 		if (init !== undefined) opts.initiative = init;
 		if (ac !== undefined) opts.ac = ac;
 		if (maxHp !== undefined) opts.maxHp = maxHp;
-		onAddCombatant(nameInput, Object.keys(opts).length > 0 ? opts : undefined);
+		addCombatant(nameInput, Object.keys(opts).length > 0 ? opts : undefined);
 		setNameInput("");
 		setSuggestions([]);
 		setPcMatches([]);
@@ -430,14 +480,14 @@ export function ActionBar({
 			setSuggestionIndex((i) => (i > 0 ? i - 1 : suggestions.length - 1));
 		} else if (e.key === "Enter" && suggestionIndex >= 0) {
 			e.preventDefault();
-			onViewStatBlock?.(suggestions[suggestionIndex]);
+			handleViewStatBlock(suggestions[suggestionIndex]);
 			setBrowseMode(false);
 			clearInput();
 		}
 	};

 	const handleBrowseSelect = (result: SearchResult) => {
-		onViewStatBlock?.(result);
+		handleViewStatBlock(result);
 		setBrowseMode(false);
 		clearInput();
 	};
@@ -448,12 +498,33 @@ export function ActionBar({
 		clearCustomFields();
 	};

+	const [rollAllMenuPos, setRollAllMenuPos] = useState<{
+		x: number;
+		y: number;
+	} | null>(null);
+
+	const openRollAllMenu = useCallback((x: number, y: number) => {
+		setRollAllMenuPos({ x, y });
+	}, []);
+
+	const rollAllLongPress = useLongPress(
+		useCallback(
+			(e: React.TouchEvent) => {
+				const touch = e.touches[0];
+				if (touch) openRollAllMenu(touch.clientX, touch.clientY);
+			},
+			[openRollAllMenu],
+		),
+	);
+
 	const overflowItems = buildOverflowItems({
 		onManagePlayers,
-		onOpenSourceManager,
+		onOpenSourceManager: showSourceManager,
 		bestiaryLoaded,
-		onBulkImport,
-		bulkImportDisabled,
+		onBulkImport: showBulkImport,
+		bulkImportDisabled: bulkImportState.status === "loading",
+		themePreference,
+		onCycleTheme: cycleTheme,
 	});

 	return (
@@ -476,7 +547,7 @@ export function ActionBar({
 							className="pr-8"
 							autoFocus={autoFocus}
 						/>
-						{bestiaryLoaded && !!onViewStatBlock && (
+						{!!bestiaryLoaded && (
 							<button
 								type="button"
 								tabIndex={-1}
@@ -537,7 +608,7 @@ export function ActionBar({
 								onSetSuggestionIndex={setSuggestionIndex}
 								onSetQueued={setQueued}
 								onConfirmQueued={confirmQueued}
-								onAddFromPlayerCharacter={onAddFromPlayerCharacter}
+								onAddFromPlayerCharacter={addFromPlayerCharacter}
 							/>
 						)}
 					</div>
@@ -573,19 +644,33 @@ export function ActionBar({
 				{!browseMode && nameInput.length >= 2 && !hasSuggestions && (
 					<Button type="submit">Add</Button>
 				)}
-				{showRollAllInitiative && !!onRollAllInitiative && (
+				{!!hasCreatureCombatants && (
+					<>
 						<Button
 							type="button"
 							size="icon"
 							variant="ghost"
 							className="text-muted-foreground hover:text-hover-action"
-						onClick={onRollAllInitiative}
-						disabled={rollAllInitiativeDisabled}
+							onClick={() => handleRollAllInitiative()}
+							onContextMenu={(e) => {
+								e.preventDefault();
+								openRollAllMenu(e.clientX, e.clientY);
+							}}
+							{...rollAllLongPress}
+							disabled={!canRollAllInitiative}
 							title="Roll all initiative"
 							aria-label="Roll all initiative"
 						>
 							<D20Icon className="h-6 w-6" />
 						</Button>
+						{!!rollAllMenuPos && (
+							<RollModeMenu
+								position={rollAllMenuPos}
+								onSelect={(mode) => handleRollAllInitiative(mode)}
+								onClose={() => setRollAllMenuPos(null)}
+							/>
+						)}
+					</>
 				)}
 				{overflowItems.length > 0 && <OverflowMenu items={overflowItems} />}
 			</form>
--- a/apps/web/src/components/bulk-import-prompt.tsx
+++ b/apps/web/src/components/bulk-import-prompt.tsx
@@ -1,35 +1,41 @@
 import { Loader2 } from "lucide-react";
 import { useId, useState } from "react";
 import { getAllSourceCodes } from "../adapters/bestiary-index-adapter.js";
-import type { BulkImportState } from "../hooks/use-bulk-import.js";
+import { useBestiaryContext } from "../contexts/bestiary-context.js";
+import { useBulkImportContext } from "../contexts/bulk-import-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
 import { Button } from "./ui/button.js";
 import { Input } from "./ui/input.js";

 const DEFAULT_BASE_URL =
 	"https://raw.githubusercontent.com/5etools-mirror-3/5etools-src/main/data/bestiary/";

-interface BulkImportPromptProps {
-	importState: BulkImportState;
-	onStartImport: (baseUrl: string) => void;
-	onDone: () => void;
-}
+export function BulkImportPrompt() {
+	const { fetchAndCacheSource, isSourceCached, refreshCache } =
+		useBestiaryContext();
+	const { state: importState, startImport, reset } = useBulkImportContext();
+	const { dismissPanel } = useSidePanelContext();

-export function BulkImportPrompt({
-	importState,
-	onStartImport,
-	onDone,
-}: Readonly<BulkImportPromptProps>) {
 	const [baseUrl, setBaseUrl] = useState(DEFAULT_BASE_URL);
 	const baseUrlId = useId();
 	const totalSources = getAllSourceCodes().length;

+	const handleStart = (url: string) => {
+		startImport(url, fetchAndCacheSource, isSourceCached, refreshCache);
+	};
+
+	const handleDone = () => {
+		dismissPanel();
+		reset();
+	};
+
 	if (importState.status === "complete") {
 		return (
 			<div className="flex flex-col gap-4">
 				<div className="rounded-md border border-green-500/50 bg-green-500/10 px-3 py-2 text-green-400 text-sm">
 					All sources loaded
 				</div>
-				<Button onClick={onDone}>Done</Button>
+				<Button onClick={handleDone}>Done</Button>
 			</div>
 		);
 	}
@@ -41,7 +47,7 @@ export function BulkImportPrompt({
 					Loaded {importState.completed}/{importState.total} sources (
 					{importState.failed} failed)
 				</div>
-				<Button onClick={onDone}>Done</Button>
+				<Button onClick={handleDone}>Done</Button>
 			</div>
 		);
 	}
@@ -96,7 +102,7 @@ export function BulkImportPrompt({
 				/>
 			</div>

-			<Button onClick={() => onStartImport(baseUrl)} disabled={isDisabled}>
+			<Button onClick={() => handleStart(baseUrl)} disabled={isDisabled}>
 				Load All
 			</Button>
 		</div>
--- a/apps/web/src/components/bulk-import-toasts.tsx
+++ b/apps/web/src/components/bulk-import-toasts.tsx
@@ -1,17 +1,12 @@
-import type { BulkImportState } from "../hooks/use-bulk-import.js";
+import { useBulkImportContext } from "../contexts/bulk-import-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
 import { Toast } from "./toast.js";

-interface BulkImportToastsProps {
-	state: BulkImportState;
-	visible: boolean;
-	onReset: () => void;
-}
+export function BulkImportToasts() {
+	const { state, reset } = useBulkImportContext();
+	const { bulkImportMode, isRightPanelCollapsed } = useSidePanelContext();
+	const visible = !bulkImportMode || isRightPanelCollapsed;

-export function BulkImportToasts({
-	state,
-	visible,
-	onReset,
-}: Readonly<BulkImportToastsProps>) {
 	if (!visible) return null;

 	if (state.status === "loading") {
@@ -30,7 +25,7 @@ export function BulkImportToasts({
 		return (
 			<Toast
 				message="All sources loaded"
-				onDismiss={onReset}
+				onDismiss={reset}
 				autoDismissMs={3000}
 			/>
 		);
@@ -40,7 +35,7 @@ export function BulkImportToasts({
 		return (
 			<Toast
 				message={`Loaded ${state.completed}/${state.total} sources (${state.failed} failed)`}
-				onDismiss={onReset}
+				onDismiss={reset}
 			/>
 		);
 	}
--- a/apps/web/src/components/combatant-row.tsx
+++ b/apps/web/src/components/combatant-row.tsx
@@ -1,20 +1,27 @@
 import {
 	type CombatantId,
 	type ConditionId,
+	type CreatureId,
 	deriveHpStatus,
 	type PlayerIcon,
+	type RollMode,
 } from "@initiative/domain";
-import { BookOpen, Brain, X } from "lucide-react";
+import { Book, BookOpen, Brain, X } from "lucide-react";
 import { type Ref, useCallback, useEffect, useRef, useState } from "react";
-import { cn } from "../lib/utils";
-import { AcShield } from "./ac-shield";
-import { ConditionPicker } from "./condition-picker";
-import { ConditionTags } from "./condition-tags";
-import { D20Icon } from "./d20-icon";
-import { HpAdjustPopover } from "./hp-adjust-popover";
-import { PLAYER_COLOR_HEX, PLAYER_ICON_MAP } from "./player-icon-map";
-import { ConfirmButton } from "./ui/confirm-button";
-import { Input } from "./ui/input";
+import { useEncounterContext } from "../contexts/encounter-context.js";
+import { useInitiativeRollsContext } from "../contexts/initiative-rolls-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
+import { useLongPress } from "../hooks/use-long-press.js";
+import { cn } from "../lib/utils.js";
+import { AcShield } from "./ac-shield.js";
+import { ConditionPicker } from "./condition-picker.js";
+import { ConditionTags } from "./condition-tags.js";
+import { D20Icon } from "./d20-icon.js";
+import { HpAdjustPopover } from "./hp-adjust-popover.js";
+import { PLAYER_COLOR_HEX, PLAYER_ICON_MAP } from "./player-icon-map.js";
+import { RollModeMenu } from "./roll-mode-menu.js";
+import { ConfirmButton } from "./ui/confirm-button.js";
+import { Input } from "./ui/input.js";

 interface Combatant {
 	readonly id: CombatantId;
@@ -27,21 +34,12 @@ interface Combatant {
 	readonly isConcentrating?: boolean;
 	readonly color?: string;
 	readonly icon?: string;
+	readonly creatureId?: CreatureId;
 }

 interface CombatantRowProps {
 	combatant: Combatant;
 	isActive: boolean;
-	onRename: (id: CombatantId, newName: string) => void;
-	onSetInitiative: (id: CombatantId, value: number | undefined) => void;
-	onRemove: (id: CombatantId) => void;
-	onSetHp: (id: CombatantId, maxHp: number | undefined) => void;
-	onAdjustHp: (id: CombatantId, delta: number) => void;
-	onSetAc: (id: CombatantId, value: number | undefined) => void;
-	onToggleCondition: (id: CombatantId, conditionId: ConditionId) => void;
-	onToggleConcentration: (id: CombatantId) => void;
-	onShowStatBlock?: () => void;
-	onRollInitiative?: (id: CombatantId) => void;
 }

 function EditableName({
@@ -278,11 +276,29 @@ function InitiativeDisplay({
 	combatantId: CombatantId;
 	dimmed: boolean;
 	onSetInitiative: (id: CombatantId, value: number | undefined) => void;
-	onRollInitiative?: (id: CombatantId) => void;
+	onRollInitiative?: (id: CombatantId, mode?: RollMode) => void;
 }>) {
 	const [editing, setEditing] = useState(false);
 	const [draft, setDraft] = useState(initiative?.toString() ?? "");
 	const inputRef = useRef<HTMLInputElement>(null);
+	const [menuPos, setMenuPos] = useState<{
+		x: number;
+		y: number;
+	} | null>(null);
+
+	const openMenu = useCallback((x: number, y: number) => {
+		setMenuPos({ x, y });
+	}, []);
+
+	const longPress = useLongPress(
+		useCallback(
+			(e: React.TouchEvent) => {
+				const touch = e.touches[0];
+				if (touch) openMenu(touch.clientX, touch.clientY);
+			},
+			[openMenu],
+		),
+	);

 	const commit = useCallback(() => {
 		if (draft === "") {
@@ -324,12 +340,18 @@ function InitiativeDisplay({
 		);
 	}

-	// Empty + bestiary creature → d20 roll button
+	// Empty + bestiary creature -> d20 roll button
 	if (initiative === undefined && onRollInitiative) {
 		return (
+			<>
 				<button
 					type="button"
 					onClick={() => onRollInitiative(combatantId)}
+					onContextMenu={(e) => {
+						e.preventDefault();
+						openMenu(e.clientX, e.clientY);
+					}}
+					{...longPress}
 					className={cn(
 						"flex h-7 w-full items-center justify-center text-muted-foreground transition-colors hover:text-hover-neutral",
 						dimmed && "opacity-50",
@@ -339,11 +361,19 @@ function InitiativeDisplay({
 				>
 					<D20Icon className="h-7 w-7" />
 				</button>
+				{!!menuPos && (
+					<RollModeMenu
+						position={menuPos}
+						onSelect={(mode) => onRollInitiative(combatantId, mode)}
+						onClose={() => setMenuPos(null)}
+					/>
+				)}
+			</>
 		);
 	}

-	// Has value → bold number, click to edit
-	// Empty + manual → "--" placeholder, click to edit
+	// Has value -> bold number, click to edit
+	// Empty + manual -> "--" placeholder, click to edit
 	return (
 		<button
 			type="button"
@@ -366,9 +396,9 @@ function rowBorderClass(
 	isConcentrating: boolean | undefined,
 ): string {
 	if (isActive && isConcentrating)
-		return "border border-l-2 border-accent/40 border-l-purple-400 bg-accent/10 card-glow";
+		return "border border-l-2 border-active-row-border border-l-purple-400 bg-active-row-bg card-glow";
 	if (isActive)
-		return "border border-l-2 border-accent/40 bg-accent/10 card-glow";
+		return "border border-l-2 border-active-row-border bg-active-row-bg card-glow";
 	if (isConcentrating)
 		return "border border-l-2 border-transparent border-l-purple-400";
 	return "border border-l-2 border-transparent";
@@ -387,17 +417,30 @@ export function CombatantRow({
 	ref,
 	combatant,
 	isActive,
-	onRename,
-	onSetInitiative,
-	onRemove,
-	onSetHp,
-	onAdjustHp,
-	onSetAc,
-	onToggleCondition,
-	onToggleConcentration,
-	onShowStatBlock,
-	onRollInitiative,
 }: CombatantRowProps & { ref?: Ref<HTMLDivElement> }) {
+	const {
+		editCombatant,
+		setInitiative,
+		removeCombatant,
+		setHp,
+		adjustHp,
+		setAc,
+		toggleCondition,
+		toggleConcentration,
+	} = useEncounterContext();
+	const { selectedCreatureId, showCreature } = useSidePanelContext();
+	const { handleRollInitiative } = useInitiativeRollsContext();
+
+	// Derive what was previously conditional props
+	const isStatBlockOpen = combatant.creatureId === selectedCreatureId;
+	const { creatureId } = combatant;
+	const onShowStatBlock = creatureId
+		? () => showCreature(creatureId)
+		: undefined;
+	const onRollInitiative = combatant.creatureId
+		? handleRollInitiative
+		: undefined;
+
 	const { id, name, initiative, maxHp, currentHp } = combatant;
 	const status = deriveHpStatus(currentHp, maxHp);
 	const dimmed = status === "unconscious";
@@ -447,7 +490,7 @@ export function CombatantRow({
 				{/* Concentration */}
 				<button
 					type="button"
-					onClick={() => onToggleConcentration(id)}
+					onClick={() => toggleConcentration(id)}
 					title="Concentrating"
 					aria-label="Toggle concentration"
 					className={cn(
@@ -463,7 +506,7 @@ export function CombatantRow({
 					initiative={initiative}
 					combatantId={id}
 					dimmed={dimmed}
-					onSetInitiative={onSetInitiative}
+					onSetInitiative={setInitiative}
 					onRollInitiative={onRollInitiative}
 				/>

@@ -480,9 +523,9 @@ export function CombatantRow({
 							onClick={onShowStatBlock}
 							title="View stat block"
 							aria-label="View stat block"
-							className="shrink-0 text-muted-foreground transition-colors hover:text-hover-neutral"
+							className="shrink-0 text-foreground transition-colors hover:text-hover-neutral"
 						>
-							<BookOpen size={14} />
+							{isStatBlockOpen ? <BookOpen size={16} /> : <Book size={16} />}
 						</button>
 					)}
 					{!!combatant.icon &&
@@ -495,7 +538,7 @@ export function CombatantRow({
 								];
 							return PcIcon ? (
 								<PcIcon
-									size={14}
+									size={16}
 									style={{ color: iconColor }}
 									className="shrink-0"
 								/>
@@ -504,18 +547,18 @@ export function CombatantRow({
 					<EditableName
 						name={name}
 						combatantId={id}
-						onRename={onRename}
+						onRename={editCombatant}
 						color={pcColor}
 					/>
 					<ConditionTags
 						conditions={combatant.conditions}
-						onRemove={(conditionId) => onToggleCondition(id, conditionId)}
+						onRemove={(conditionId) => toggleCondition(id, conditionId)}
 						onOpenPicker={() => setPickerOpen((prev) => !prev)}
 					/>
 					{!!pickerOpen && (
 						<ConditionPicker
 							activeConditions={combatant.conditions}
-							onToggle={(conditionId) => onToggleCondition(id, conditionId)}
+							onToggle={(conditionId) => toggleCondition(id, conditionId)}
 							onClose={() => setPickerOpen(false)}
 						/>
 					)}
@@ -523,7 +566,7 @@ export function CombatantRow({

 				{/* AC */}
 				<div className={cn(dimmed && "opacity-50")}>
-					<AcDisplay ac={combatant.ac} onCommit={(v) => onSetAc(id, v)} />
+					<AcDisplay ac={combatant.ac} onCommit={(v) => setAc(id, v)} />
 				</div>

 				{/* HP */}
@@ -531,7 +574,7 @@ export function CombatantRow({
 					<ClickableHp
 						currentHp={currentHp}
 						maxHp={maxHp}
-						onAdjust={(delta) => onAdjustHp(id, delta)}
+						onAdjust={(delta) => adjustHp(id, delta)}
 						dimmed={dimmed}
 					/>
 					{maxHp !== undefined && (
@@ -545,7 +588,7 @@ export function CombatantRow({
 						</span>
 					)}
 					<div className={cn(dimmed && "opacity-50")}>
-						<MaxHpDisplay maxHp={maxHp} onCommit={(v) => onSetHp(id, v)} />
+						<MaxHpDisplay maxHp={maxHp} onCommit={(v) => setHp(id, v)} />
 					</div>
 				</div>

@@ -553,7 +596,7 @@ export function CombatantRow({
 				<ConfirmButton
 					icon={<X size={16} />}
 					label="Remove combatant"
-					onConfirm={() => onRemove(id)}
+					onConfirm={() => removeCombatant(id)}
 					className="pointer-events-none pointer-coarse:pointer-events-auto h-7 w-7 text-muted-foreground opacity-0 pointer-coarse:opacity-100 transition-opacity focus:pointer-events-auto focus:opacity-100 group-hover:pointer-events-auto group-hover:opacity-100"
 				/>
 			</div>
--- a/apps/web/src/components/hp-adjust-popover.tsx
+++ b/apps/web/src/components/hp-adjust-popover.tsx
@@ -113,7 +113,7 @@ export function HpAdjustPopover({ onAdjust, onClose }: HpAdjustPopoverProps) {
 				<button
 					type="button"
 					disabled={!isValid}
-					className="inline-flex h-7 w-7 shrink-0 items-center justify-center rounded-md text-red-400 transition-colors hover:bg-red-950 hover:text-red-300 disabled:pointer-events-none disabled:opacity-50"
+					className="inline-flex h-7 w-7 shrink-0 items-center justify-center rounded-md text-red-400 transition-colors hover:bg-hp-damage-hover-bg hover:text-red-300 disabled:pointer-events-none disabled:opacity-50"
 					onClick={() => applyDelta(-1)}
 					title="Apply damage"
 					aria-label="Apply damage"
@@ -123,7 +123,7 @@ export function HpAdjustPopover({ onAdjust, onClose }: HpAdjustPopoverProps) {
 				<button
 					type="button"
 					disabled={!isValid}
-					className="inline-flex h-7 w-7 shrink-0 items-center justify-center rounded-md text-emerald-400 transition-colors hover:bg-emerald-950 hover:text-emerald-300 disabled:pointer-events-none disabled:opacity-50"
+					className="inline-flex h-7 w-7 shrink-0 items-center justify-center rounded-md text-emerald-400 transition-colors hover:bg-hp-heal-hover-bg hover:text-emerald-300 disabled:pointer-events-none disabled:opacity-50"
 					onClick={() => applyDelta(1)}
 					title="Apply healing"
 					aria-label="Apply healing"
--- a/apps/web/src/components/player-character-section.tsx
+++ b/apps/web/src/components/player-character-section.tsx
@@ -1,5 +1,6 @@
-import type { PlayerCharacter, PlayerCharacterId } from "@initiative/domain";
+import type { PlayerCharacter } from "@initiative/domain";
 import { type RefObject, useImperativeHandle, useState } from "react";
+import { usePlayerCharactersContext } from "../contexts/player-characters-context.js";
 import { CreatePlayerModal } from "./create-player-modal.js";
 import { PlayerManagement } from "./player-management.js";

@@ -7,37 +8,14 @@ export interface PlayerCharacterSectionHandle {
 	openManagement: () => void;
 }

-interface PlayerCharacterSectionProps {
-	characters: readonly PlayerCharacter[];
-	onCreateCharacter: (
-		name: string,
-		ac: number,
-		maxHp: number,
-		color: string | undefined,
-		icon: string | undefined,
-	) => void;
-	onEditCharacter: (
-		id: PlayerCharacterId,
-		fields: {
-			name?: string;
-			ac?: number;
-			maxHp?: number;
-			color?: string | null;
-			icon?: string | null;
-		},
-	) => void;
-	onDeleteCharacter: (id: PlayerCharacterId) => void;
-}
-
 export const PlayerCharacterSection = function PlayerCharacterSectionInner({
-	characters,
-	onCreateCharacter,
-	onEditCharacter,
-	onDeleteCharacter,
 	ref,
-}: PlayerCharacterSectionProps & {
+}: {
 	ref?: RefObject<PlayerCharacterSectionHandle | null>;
 }) {
+	const { characters, createCharacter, editCharacter, deleteCharacter } =
+		usePlayerCharactersContext();
+
 	const [managementOpen, setManagementOpen] = useState(false);
 	const [createOpen, setCreateOpen] = useState(false);
 	const [editingPlayer, setEditingPlayer] = useState<
@@ -59,7 +37,7 @@ export const PlayerCharacterSection = function PlayerCharacterSectionInner({
 				}}
 				onSave={(name, ac, maxHp, color, icon) => {
 					if (editingPlayer) {
-						onEditCharacter(editingPlayer.id, {
+						editCharacter(editingPlayer.id, {
 							name,
 							ac,
 							maxHp,
@@ -67,7 +45,7 @@ export const PlayerCharacterSection = function PlayerCharacterSectionInner({
 							icon: icon ?? null,
 						});
 					} else {
-						onCreateCharacter(name, ac, maxHp, color, icon);
+						createCharacter(name, ac, maxHp, color, icon);
 					}
 				}}
 				playerCharacter={editingPlayer}
@@ -81,7 +59,7 @@ export const PlayerCharacterSection = function PlayerCharacterSectionInner({
 					setCreateOpen(true);
 					setManagementOpen(false);
 				}}
-				onDelete={(id) => onDeleteCharacter(id)}
+				onDelete={(id) => deleteCharacter(id)}
 				onCreate={() => {
 					setEditingPlayer(undefined);
 					setCreateOpen(true);
--- a/apps/web/src/components/roll-mode-menu.tsx
+++ b/apps/web/src/components/roll-mode-menu.tsx
@@ -0,0 +1,88 @@
+import type { RollMode } from "@initiative/domain";
+import { ChevronsDown, ChevronsUp } from "lucide-react";
+import { useEffect, useLayoutEffect, useRef, useState } from "react";
+
+interface RollModeMenuProps {
+	readonly position: { x: number; y: number };
+	readonly onSelect: (mode: RollMode) => void;
+	readonly onClose: () => void;
+}
+
+export function RollModeMenu({
+	position,
+	onSelect,
+	onClose,
+}: RollModeMenuProps) {
+	const ref = useRef<HTMLDivElement>(null);
+	const [pos, setPos] = useState<{ top: number; left: number } | null>(null);
+
+	useLayoutEffect(() => {
+		const el = ref.current;
+		if (!el) return;
+		const rect = el.getBoundingClientRect();
+		const vw = document.documentElement.clientWidth;
+		const vh = document.documentElement.clientHeight;
+
+		let left = position.x;
+		let top = position.y;
+
+		if (left + rect.width > vw) left = vw - rect.width - 8;
+		if (left < 8) left = 8;
+		if (top + rect.height > vh) top = position.y - rect.height;
+		if (top < 8) top = 8;
+
+		setPos({ top, left });
+	}, [position.x, position.y]);
+
+	useEffect(() => {
+		function handleMouseDown(e: MouseEvent) {
+			if (ref.current && !ref.current.contains(e.target as Node)) {
+				onClose();
+			}
+		}
+		function handleKeyDown(e: KeyboardEvent) {
+			if (e.key === "Escape") onClose();
+		}
+		document.addEventListener("mousedown", handleMouseDown);
+		document.addEventListener("keydown", handleKeyDown);
+		return () => {
+			document.removeEventListener("mousedown", handleMouseDown);
+			document.removeEventListener("keydown", handleKeyDown);
+		};
+	}, [onClose]);
+
+	return (
+		<div
+			ref={ref}
+			className="card-glow fixed z-50 min-w-40 rounded-lg border border-border bg-card py-1"
+			style={
+				pos
+					? { top: pos.top, left: pos.left }
+					: { visibility: "hidden" as const }
+			}
+		>
+			<button
+				type="button"
+				className="flex w-full items-center gap-2 px-3 py-1.5 text-left text-emerald-400 text-sm hover:bg-hover-neutral-bg"
+				onClick={() => {
+					onSelect("advantage");
+					onClose();
+				}}
+			>
+				<ChevronsUp className="h-4 w-4" />
+				Advantage
+			</button>
+			<button
+				type="button"
+				className="flex w-full items-center gap-2 px-3 py-1.5 text-left text-red-400 text-sm hover:bg-hover-neutral-bg"
+				onClick={() => {
+					onSelect("disadvantage");
+					onClose();
+				}}
+			>
+				<ChevronsDown className="h-4 w-4" />
+				Disadvantage
+			</button>
+		</div>
+	);
+}
--- a/apps/web/src/components/source-fetch-prompt.tsx
+++ b/apps/web/src/components/source-fetch-prompt.tsx
@@ -1,24 +1,24 @@
 import { Download, Loader2, Upload } from "lucide-react";
 import { useId, useRef, useState } from "react";
-import { getDefaultFetchUrl } from "../adapters/bestiary-index-adapter.js";
+import {
+	getDefaultFetchUrl,
+	getSourceDisplayName,
+} from "../adapters/bestiary-index-adapter.js";
+import { useBestiaryContext } from "../contexts/bestiary-context.js";
 import { Button } from "./ui/button.js";
 import { Input } from "./ui/input.js";

 interface SourceFetchPromptProps {
 	sourceCode: string;
-	sourceDisplayName: string;
-	fetchAndCacheSource: (sourceCode: string, url: string) => Promise<void>;
 	onSourceLoaded: () => void;
-	onUploadSource: (sourceCode: string, jsonData: unknown) => Promise<void>;
 }

 export function SourceFetchPrompt({
 	sourceCode,
-	sourceDisplayName,
-	fetchAndCacheSource,
 	onSourceLoaded,
-	onUploadSource,
 }: Readonly<SourceFetchPromptProps>) {
+	const { fetchAndCacheSource, uploadAndCacheSource } = useBestiaryContext();
+	const sourceDisplayName = getSourceDisplayName(sourceCode);
 	const [url, setUrl] = useState(() => getDefaultFetchUrl(sourceCode));
 	const [status, setStatus] = useState<"idle" | "fetching" | "error">("idle");
 	const [error, setError] = useState<string>("");
@@ -47,7 +47,7 @@ export function SourceFetchPrompt({
 		try {
 			const text = await file.text();
 			const json = JSON.parse(text);
-			await onUploadSource(sourceCode, json);
+			await uploadAndCacheSource(sourceCode, json);
 			onSourceLoaded();
 		} catch (err) {
 			setStatus("error");
--- a/apps/web/src/components/source-manager.tsx
+++ b/apps/web/src/components/source-manager.tsx
@@ -8,16 +8,12 @@ import {
 } from "react";
 import type { CachedSourceInfo } from "../adapters/bestiary-cache.js";
 import * as bestiaryCache from "../adapters/bestiary-cache.js";
+import { useBestiaryContext } from "../contexts/bestiary-context.js";
 import { Button } from "./ui/button.js";
 import { Input } from "./ui/input.js";

-interface SourceManagerProps {
-	onCacheCleared: () => void;
-}
-
-export function SourceManager({
-	onCacheCleared,
-}: Readonly<SourceManagerProps>) {
+export function SourceManager() {
+	const { refreshCache } = useBestiaryContext();
 	const [sources, setSources] = useState<CachedSourceInfo[]>([]);
 	const [filter, setFilter] = useState("");
 	const [optimisticSources, applyOptimistic] = useOptimistic(
@@ -44,14 +40,14 @@ export function SourceManager({
 		applyOptimistic({ type: "remove", sourceCode });
 		await bestiaryCache.clearSource(sourceCode);
 		await loadSources();
-		onCacheCleared();
+		void refreshCache();
 	};

 	const handleClearAll = async () => {
 		applyOptimistic({ type: "clear" });
 		await bestiaryCache.clearAll();
 		await loadSources();
-		onCacheCleared();
+		void refreshCache();
 	};

 	const filteredSources = useMemo(() => {
--- a/apps/web/src/components/stat-block-panel.tsx
+++ b/apps/web/src/components/stat-block-panel.tsx
@@ -1,9 +1,9 @@
-import type { Creature, CreatureId } from "@initiative/domain";
+import type { CreatureId } from "@initiative/domain";
 import { PanelRightClose, Pin, PinOff } from "lucide-react";
 import type { ReactNode } from "react";
 import { useEffect, useState } from "react";
-import { getSourceDisplayName } from "../adapters/bestiary-index-adapter.js";
-import type { BulkImportState } from "../hooks/use-bulk-import.js";
+import { useBestiaryContext } from "../contexts/bestiary-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
 import { useSwipeToDismiss } from "../hooks/use-swipe-to-dismiss.js";
 import { cn } from "../lib/utils.js";
 import { BulkImportPrompt } from "./bulk-import-prompt.js";
@@ -13,28 +13,8 @@ import { StatBlock } from "./stat-block.js";
 import { Button } from "./ui/button.js";

 interface StatBlockPanelProps {
-	creatureId: CreatureId | null;
-	creature: Creature | null;
-	isSourceCached: (sourceCode: string) => Promise<boolean>;
-	fetchAndCacheSource: (sourceCode: string, url: string) => Promise<void>;
-	uploadAndCacheSource: (
-		sourceCode: string,
-		jsonData: unknown,
-	) => Promise<void>;
-	refreshCache: () => Promise<void>;
 	panelRole: "browse" | "pinned";
-	isCollapsed: boolean;
-	onToggleCollapse: () => void;
-	onPin: () => void;
-	onUnpin: () => void;
-	showPinButton: boolean;
 	side: "left" | "right";
-	onDismiss: () => void;
-	bulkImportMode?: boolean;
-	bulkImportState?: BulkImportState;
-	onStartBulkImport?: (baseUrl: string) => void;
-	onBulkImportDone?: () => void;
-	sourceManagerMode?: boolean;
 }

 function extractSourceCode(cId: CreatureId): string {
@@ -228,27 +208,49 @@ function MobileDrawer({
 	);
 }

-export function StatBlockPanel({
+function usePanelRole(panelRole: "browse" | "pinned") {
+	const sidePanel = useSidePanelContext();
+	const { getCreature } = useBestiaryContext();
+
+	const creatureId =
+		panelRole === "browse"
+			? sidePanel.selectedCreatureId
+			: sidePanel.pinnedCreatureId;
+	const creature = creatureId ? (getCreature(creatureId) ?? null) : null;
+
+	const isBrowse = panelRole === "browse";
+	return {
 		creatureId,
 		creature,
-	isSourceCached,
-	fetchAndCacheSource,
-	uploadAndCacheSource,
-	refreshCache,
+		isCollapsed: isBrowse ? sidePanel.isRightPanelCollapsed : false,
+		onToggleCollapse: isBrowse ? sidePanel.toggleCollapse : () => {},
+		onDismiss: isBrowse ? sidePanel.dismissPanel : () => {},
+		onPin: isBrowse ? sidePanel.togglePin : () => {},
+		onUnpin: panelRole === "pinned" ? sidePanel.unpin : () => {},
+		showPinButton: isBrowse && sidePanel.isWideDesktop && !!creature,
+		bulkImportMode: isBrowse && sidePanel.bulkImportMode,
+		sourceManagerMode: isBrowse && sidePanel.sourceManagerMode,
+	};
+}
+
+export function StatBlockPanel({
 	panelRole,
+	side,
+}: Readonly<StatBlockPanelProps>) {
+	const { isSourceCached } = useBestiaryContext();
+	const {
+		creatureId,
+		creature,
 		isCollapsed,
 		onToggleCollapse,
+		onDismiss,
 		onPin,
 		onUnpin,
 		showPinButton,
-	side,
-	onDismiss,
 		bulkImportMode,
-	bulkImportState,
-	onStartBulkImport,
-	onBulkImportDone,
 		sourceManagerMode,
-}: Readonly<StatBlockPanelProps>) {
+	} = usePanelRole(panelRole);
+
 	const [isDesktop, setIsDesktop] = useState(
 		() => globalThis.matchMedia("(min-width: 1024px)").matches,
 	);
@@ -285,29 +287,17 @@ export function StatBlockPanel({

 	const sourceCode = creatureId ? extractSourceCode(creatureId) : "";

-	const handleSourceLoaded = async () => {
-		await refreshCache();
+	const handleSourceLoaded = () => {
 		setNeedsFetch(false);
 	};

 	const renderContent = () => {
 		if (sourceManagerMode) {
-			return <SourceManager onCacheCleared={refreshCache} />;
+			return <SourceManager />;
 		}

-		if (
-			bulkImportMode &&
-			bulkImportState &&
-			onStartBulkImport &&
-			onBulkImportDone
-		) {
-			return (
-				<BulkImportPrompt
-					importState={bulkImportState}
-					onStartImport={onStartBulkImport}
-					onDone={onBulkImportDone}
-				/>
-			);
+		if (bulkImportMode) {
+			return <BulkImportPrompt />;
 		}

 		if (checkingCache) {
@@ -324,10 +314,7 @@ export function StatBlockPanel({
 			return (
 				<SourceFetchPrompt
 					sourceCode={sourceCode}
-					sourceDisplayName={getSourceDisplayName(sourceCode)}
-					fetchAndCacheSource={fetchAndCacheSource}
 					onSourceLoaded={handleSourceLoaded}
-					onUploadSource={uploadAndCacheSource}
 				/>
 			);
 		}
--- a/apps/web/src/components/stat-block.tsx
+++ b/apps/web/src/components/stat-block.tsx
@@ -30,7 +30,7 @@ function PropertyLine({

 function SectionDivider() {
 	return (
-		<div className="my-2 h-px bg-gradient-to-r from-amber-800/60 via-amber-700/40 to-transparent" />
+		<div className="my-2 h-px bg-gradient-to-r from-stat-divider-from via-stat-divider-via to-transparent" />
 	);
 }

@@ -54,7 +54,7 @@ export function StatBlock({ creature }: Readonly<StatBlockProps>) {
 		<div className="space-y-1 text-foreground">
 			{/* Header */}
 			<div>
-				<h2 className="font-bold text-amber-400 text-xl">{creature.name}</h2>
+				<h2 className="font-bold text-stat-heading text-xl">{creature.name}</h2>
 				<p className="text-muted-foreground text-sm italic">
 					{creature.size} {creature.type}, {creature.alignment}
 				</p>
@@ -194,7 +194,7 @@ export function StatBlock({ creature }: Readonly<StatBlockProps>) {
 			{creature.actions && creature.actions.length > 0 && (
 				<>
 					<SectionDivider />
-					<h3 className="font-bold text-amber-400 text-base">Actions</h3>
+					<h3 className="font-bold text-base text-stat-heading">Actions</h3>
 					<div className="space-y-2">
 						{creature.actions.map((a) => (
 							<div key={a.name} className="text-sm">
@@ -209,7 +209,9 @@ export function StatBlock({ creature }: Readonly<StatBlockProps>) {
 			{creature.bonusActions && creature.bonusActions.length > 0 && (
 				<>
 					<SectionDivider />
-					<h3 className="font-bold text-amber-400 text-base">Bonus Actions</h3>
+					<h3 className="font-bold text-base text-stat-heading">
+						Bonus Actions
+					</h3>
 					<div className="space-y-2">
 						{creature.bonusActions.map((a) => (
 							<div key={a.name} className="text-sm">
@@ -224,7 +226,7 @@ export function StatBlock({ creature }: Readonly<StatBlockProps>) {
 			{creature.reactions && creature.reactions.length > 0 && (
 				<>
 					<SectionDivider />
-					<h3 className="font-bold text-amber-400 text-base">Reactions</h3>
+					<h3 className="font-bold text-base text-stat-heading">Reactions</h3>
 					<div className="space-y-2">
 						{creature.reactions.map((a) => (
 							<div key={a.name} className="text-sm">
@@ -239,7 +241,7 @@ export function StatBlock({ creature }: Readonly<StatBlockProps>) {
 			{!!creature.legendaryActions && (
 				<>
 					<SectionDivider />
-					<h3 className="font-bold text-amber-400 text-base">
+					<h3 className="font-bold text-base text-stat-heading">
 						Legendary Actions
 					</h3>
 					<p className="text-muted-foreground text-sm italic">
--- a/apps/web/src/components/turn-navigation.tsx
+++ b/apps/web/src/components/turn-navigation.tsx
@@ -1,21 +1,12 @@
-import type { Encounter } from "@initiative/domain";
 import { StepBack, StepForward, Trash2 } from "lucide-react";
-import { Button } from "./ui/button";
-import { ConfirmButton } from "./ui/confirm-button";
+import { useEncounterContext } from "../contexts/encounter-context.js";
+import { Button } from "./ui/button.js";
+import { ConfirmButton } from "./ui/confirm-button.js";

-interface TurnNavigationProps {
-	encounter: Encounter;
-	onAdvanceTurn: () => void;
-	onRetreatTurn: () => void;
-	onClearEncounter: () => void;
-}
+export function TurnNavigation() {
+	const { encounter, advanceTurn, retreatTurn, clearEncounter } =
+		useEncounterContext();

-export function TurnNavigation({
-	encounter,
-	onAdvanceTurn,
-	onRetreatTurn,
-	onClearEncounter,
-}: Readonly<TurnNavigationProps>) {
 	const hasCombatants = encounter.combatants.length > 0;
 	const isAtStart = encounter.roundNumber === 1 && encounter.activeIndex === 0;
 	const activeCombatant = encounter.combatants[encounter.activeIndex];
@@ -23,9 +14,9 @@ export function TurnNavigation({
 	return (
 		<div className="card-glow flex items-center gap-3 rounded-lg border border-border bg-card px-4 py-3">
 			<Button
-				variant="outline"
+				variant="ghost"
 				size="icon"
-				onClick={onRetreatTurn}
+				onClick={retreatTurn}
 				disabled={!hasCombatants || isAtStart}
 				title="Previous turn"
 				aria-label="Previous turn"
@@ -48,14 +39,14 @@ export function TurnNavigation({
 				<ConfirmButton
 					icon={<Trash2 className="h-5 w-5" />}
 					label="Clear encounter"
-					onConfirm={onClearEncounter}
+					onConfirm={clearEncounter}
 					disabled={!hasCombatants}
 					className="text-muted-foreground"
 				/>
 				<Button
-					variant="outline"
+					variant="ghost"
 					size="icon"
-					onClick={onAdvanceTurn}
+					onClick={advanceTurn}
 					disabled={!hasCombatants}
 					title="Next turn"
 					aria-label="Next turn"
--- a/apps/web/src/components/ui/overflow-menu.tsx
+++ b/apps/web/src/components/ui/overflow-menu.tsx
@@ -7,6 +7,7 @@ export interface OverflowMenuItem {
 	readonly label: string;
 	readonly onClick: () => void;
 	readonly disabled?: boolean;
+	readonly keepOpen?: boolean;
 }

 interface OverflowMenuProps {
@@ -58,7 +59,7 @@ export function OverflowMenu({ items }: OverflowMenuProps) {
 							disabled={item.disabled}
 							onClick={() => {
 								item.onClick();
-								setOpen(false);
+								if (!item.keepOpen) setOpen(false);
 							}}
 						>
 							{item.icon}
--- a/apps/web/src/contexts/bestiary-context.tsx
+++ b/apps/web/src/contexts/bestiary-context.tsx
@@ -0,0 +1,23 @@
+import { createContext, type ReactNode, useContext } from "react";
+import { useBestiary } from "../hooks/use-bestiary.js";
+
+export type { SearchResult } from "../hooks/use-bestiary.js";
+
+type BestiaryContextValue = ReturnType<typeof useBestiary>;
+
+const BestiaryContext = createContext<BestiaryContextValue | null>(null);
+
+export function BestiaryProvider({ children }: { children: ReactNode }) {
+	const value = useBestiary();
+	return (
+		<BestiaryContext.Provider value={value}>
+			{children}
+		</BestiaryContext.Provider>
+	);
+}
+
+export function useBestiaryContext(): BestiaryContextValue {
+	const ctx = useContext(BestiaryContext);
+	if (!ctx) throw new Error("useBestiaryContext requires BestiaryProvider");
+	return ctx;
+}
--- a/apps/web/src/contexts/bulk-import-context.tsx
+++ b/apps/web/src/contexts/bulk-import-context.tsx
@@ -0,0 +1,21 @@
+import { createContext, type ReactNode, useContext } from "react";
+import { useBulkImport } from "../hooks/use-bulk-import.js";
+
+type BulkImportContextValue = ReturnType<typeof useBulkImport>;
+
+const BulkImportContext = createContext<BulkImportContextValue | null>(null);
+
+export function BulkImportProvider({ children }: { children: ReactNode }) {
+	const value = useBulkImport();
+	return (
+		<BulkImportContext.Provider value={value}>
+			{children}
+		</BulkImportContext.Provider>
+	);
+}
+
+export function useBulkImportContext(): BulkImportContextValue {
+	const ctx = useContext(BulkImportContext);
+	if (!ctx) throw new Error("useBulkImportContext requires BulkImportProvider");
+	return ctx;
+}
--- a/apps/web/src/contexts/encounter-context.tsx
+++ b/apps/web/src/contexts/encounter-context.tsx
@@ -0,0 +1,21 @@
+import { createContext, type ReactNode, useContext } from "react";
+import { useEncounter } from "../hooks/use-encounter.js";
+
+type EncounterContextValue = ReturnType<typeof useEncounter>;
+
+const EncounterContext = createContext<EncounterContextValue | null>(null);
+
+export function EncounterProvider({ children }: { children: ReactNode }) {
+	const value = useEncounter();
+	return (
+		<EncounterContext.Provider value={value}>
+			{children}
+		</EncounterContext.Provider>
+	);
+}
+
+export function useEncounterContext(): EncounterContextValue {
+	const ctx = useContext(EncounterContext);
+	if (!ctx) throw new Error("useEncounterContext requires EncounterProvider");
+	return ctx;
+}
--- a/apps/web/src/contexts/index.ts
+++ b/apps/web/src/contexts/index.ts
@@ -0,0 +1,7 @@
+export { BestiaryProvider } from "./bestiary-context.js";
+export { BulkImportProvider } from "./bulk-import-context.js";
+export { EncounterProvider } from "./encounter-context.js";
+export { InitiativeRollsProvider } from "./initiative-rolls-context.js";
+export { PlayerCharactersProvider } from "./player-characters-context.js";
+export { SidePanelProvider } from "./side-panel-context.js";
+export { ThemeProvider } from "./theme-context.js";
--- a/apps/web/src/contexts/initiative-rolls-context.tsx
+++ b/apps/web/src/contexts/initiative-rolls-context.tsx
@@ -0,0 +1,25 @@
+import { createContext, type ReactNode, useContext } from "react";
+import { useInitiativeRolls } from "../hooks/use-initiative-rolls.js";
+
+type InitiativeRollsContextValue = ReturnType<typeof useInitiativeRolls>;
+
+const InitiativeRollsContext =
+	createContext<InitiativeRollsContextValue | null>(null);
+
+export function InitiativeRollsProvider({ children }: { children: ReactNode }) {
+	const value = useInitiativeRolls();
+	return (
+		<InitiativeRollsContext.Provider value={value}>
+			{children}
+		</InitiativeRollsContext.Provider>
+	);
+}
+
+export function useInitiativeRollsContext(): InitiativeRollsContextValue {
+	const ctx = useContext(InitiativeRollsContext);
+	if (!ctx)
+		throw new Error(
+			"useInitiativeRollsContext requires InitiativeRollsProvider",
+		);
+	return ctx;
+}
--- a/apps/web/src/contexts/player-characters-context.tsx
+++ b/apps/web/src/contexts/player-characters-context.tsx
@@ -0,0 +1,29 @@
+import { createContext, type ReactNode, useContext } from "react";
+import { usePlayerCharacters } from "../hooks/use-player-characters.js";
+
+type PlayerCharactersContextValue = ReturnType<typeof usePlayerCharacters>;
+
+const PlayerCharactersContext =
+	createContext<PlayerCharactersContextValue | null>(null);
+
+export function PlayerCharactersProvider({
+	children,
+}: {
+	children: ReactNode;
+}) {
+	const value = usePlayerCharacters();
+	return (
+		<PlayerCharactersContext.Provider value={value}>
+			{children}
+		</PlayerCharactersContext.Provider>
+	);
+}
+
+export function usePlayerCharactersContext(): PlayerCharactersContextValue {
+	const ctx = useContext(PlayerCharactersContext);
+	if (!ctx)
+		throw new Error(
+			"usePlayerCharactersContext requires PlayerCharactersProvider",
+		);
+	return ctx;
+}
--- a/apps/web/src/contexts/side-panel-context.tsx
+++ b/apps/web/src/contexts/side-panel-context.tsx
@@ -0,0 +1,21 @@
+import { createContext, type ReactNode, useContext } from "react";
+import { useSidePanelState } from "../hooks/use-side-panel-state.js";
+
+type SidePanelContextValue = ReturnType<typeof useSidePanelState>;
+
+const SidePanelContext = createContext<SidePanelContextValue | null>(null);
+
+export function SidePanelProvider({ children }: { children: ReactNode }) {
+	const value = useSidePanelState();
+	return (
+		<SidePanelContext.Provider value={value}>
+			{children}
+		</SidePanelContext.Provider>
+	);
+}
+
+export function useSidePanelContext(): SidePanelContextValue {
+	const ctx = useContext(SidePanelContext);
+	if (!ctx) throw new Error("useSidePanelContext requires SidePanelProvider");
+	return ctx;
+}
--- a/apps/web/src/contexts/theme-context.tsx
+++ b/apps/web/src/contexts/theme-context.tsx
@@ -0,0 +1,19 @@
+import { createContext, type ReactNode, useContext } from "react";
+import { useTheme } from "../hooks/use-theme.js";
+
+type ThemeContextValue = ReturnType<typeof useTheme>;
+
+const ThemeContext = createContext<ThemeContextValue | null>(null);
+
+export function ThemeProvider({ children }: { children: ReactNode }) {
+	const value = useTheme();
+	return (
+		<ThemeContext.Provider value={value}>{children}</ThemeContext.Provider>
+	);
+}
+
+export function useThemeContext(): ThemeContextValue {
+	const ctx = useContext(ThemeContext);
+	if (!ctx) throw new Error("useThemeContext requires ThemeProvider");
+	return ctx;
+}
--- a/apps/web/src/hooks/tests/use-encounter.test.ts
+++ b/apps/web/src/hooks/tests/use-encounter.test.ts
@@ -137,7 +137,9 @@ describe("useEncounter", () => {
 			type: "humanoid",
 		};

-		act(() => result.current.addFromBestiary(entry));
+		act(() => {
+			result.current.addFromBestiary(entry);
+		});

 		expect(result.current.hasCreatureCombatants).toBe(true);
 		expect(result.current.canRollAllInitiative).toBe(true);
@@ -158,7 +160,9 @@ describe("useEncounter", () => {
 			type: "humanoid",
 		};

-		act(() => result.current.addFromBestiary(entry));
+		act(() => {
+			result.current.addFromBestiary(entry);
+		});

 		const combatant = result.current.encounter.combatants[0];
 		expect(combatant.name).toBe("Goblin");
@@ -183,8 +187,12 @@ describe("useEncounter", () => {
 			type: "humanoid",
 		};

-		act(() => result.current.addFromBestiary(entry));
-		act(() => result.current.addFromBestiary(entry));
+		act(() => {
+			result.current.addFromBestiary(entry);
+		});
+		act(() => {
+			result.current.addFromBestiary(entry);
+		});

 		const names = result.current.encounter.combatants.map((c) => c.name);
 		expect(names).toContain("Goblin 1");
--- a/apps/web/src/hooks/use-action-bar-animation.ts
+++ b/apps/web/src/hooks/use-action-bar-animation.ts
@@ -0,0 +1,38 @@
+import { useLayoutEffect, useRef, useState } from "react";
+
+export function useActionBarAnimation(combatantCount: number) {
+	const wasEmptyRef = useRef(combatantCount === 0);
+	const [settling, setSettling] = useState(false);
+	const [rising, setRising] = useState(false);
+	const [topBarExiting, setTopBarExiting] = useState(false);
+
+	useLayoutEffect(() => {
+		const nowEmpty = combatantCount === 0;
+		if (wasEmptyRef.current && !nowEmpty) {
+			setSettling(true);
+		} else if (!wasEmptyRef.current && nowEmpty) {
+			setRising(true);
+			setTopBarExiting(true);
+		}
+		wasEmptyRef.current = nowEmpty;
+	}, [combatantCount]);
+
+	const empty = combatantCount === 0;
+	const risingClass = rising ? "animate-rise-to-center" : "";
+	const settlingClass = settling ? "animate-settle-to-bottom" : "";
+	const exitingClass = topBarExiting
+		? "absolute inset-x-0 top-0 z-10 px-4 animate-slide-up-out"
+		: "";
+	const topBarClass = settling ? "animate-slide-down-in" : exitingClass;
+	const showTopBar = !empty || topBarExiting;
+
+	return {
+		risingClass,
+		settlingClass,
+		topBarClass,
+		showTopBar,
+		onSettleEnd: () => setSettling(false),
+		onRiseEnd: () => setRising(false),
+		onTopBarExitEnd: () => setTopBarExiting(false),
+	};
+}
--- a/apps/web/src/hooks/use-auto-stat-block.ts
+++ b/apps/web/src/hooks/use-auto-stat-block.ts
@@ -0,0 +1,17 @@
+import { useEffect } from "react";
+import { useEncounterContext } from "../contexts/encounter-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
+
+export function useAutoStatBlock(): void {
+	const { encounter } = useEncounterContext();
+	const { panelView, updateCreature } = useSidePanelContext();
+
+	const activeCreatureId =
+		encounter.combatants[encounter.activeIndex]?.creatureId;
+
+	useEffect(() => {
+		if (activeCreatureId && panelView.mode === "creature") {
+			updateCreature(activeCreatureId);
+		}
+	}, [activeCreatureId, panelView.mode, updateCreature]);
+}
--- a/apps/web/src/hooks/use-bulk-import.ts
+++ b/apps/web/src/hooks/use-bulk-import.ts
@@ -6,7 +6,7 @@ import {

 const BATCH_SIZE = 6;

-export interface BulkImportState {
+interface BulkImportState {
 	readonly status: "idle" | "loading" | "complete" | "partial-failure";
 	readonly total: number;
 	readonly completed: number;
--- a/apps/web/src/hooks/use-encounter.ts
+++ b/apps/web/src/hooks/use-encounter.ts
@@ -17,6 +17,7 @@ import type {
 	BestiaryIndexEntry,
 	CombatantId,
 	ConditionId,
+	CreatureId,
 	DomainEvent,
 	Encounter,
 	PlayerCharacter,
@@ -265,7 +266,7 @@ export function useEncounter() {
 	}, [makeStore]);

 	const addFromBestiary = useCallback(
-		(entry: BestiaryIndexEntry) => {
+		(entry: BestiaryIndexEntry): CreatureId | null => {
 			const store = makeStore();
 			const existingNames = store.get().combatants.map((c) => c.name);
 			const { newName, renames } = resolveCreatureName(
@@ -284,7 +285,7 @@ export function useEncounter() {
 			// Add combatant with resolved name
 			const id = combatantId(`c-${++nextId.current}`);
 			const addResult = addCombatantUseCase(makeStore(), id, newName);
-			if (isDomainError(addResult)) return;
+			if (isDomainError(addResult)) return null;

 			// Set HP
 			const hpResult = setHpUseCase(makeStore(), id, entry.hp);
@@ -317,6 +318,8 @@ export function useEncounter() {
 			});

 			setEvents((prev) => [...prev, ...addResult]);
+
+			return cId;
 		},
 		[makeStore],
 	);
--- a/apps/web/src/hooks/use-initiative-rolls.ts
+++ b/apps/web/src/hooks/use-initiative-rolls.ts
@@ -0,0 +1,75 @@
+import {
+	rollAllInitiativeUseCase,
+	rollInitiativeUseCase,
+} from "@initiative/application";
+import {
+	type CombatantId,
+	isDomainError,
+	type RollMode,
+} from "@initiative/domain";
+import { useCallback, useState } from "react";
+import { useBestiaryContext } from "../contexts/bestiary-context.js";
+import { useEncounterContext } from "../contexts/encounter-context.js";
+import { useSidePanelContext } from "../contexts/side-panel-context.js";
+
+function rollDice(): number {
+	return Math.floor(Math.random() * 20) + 1;
+}
+
+export function useInitiativeRolls() {
+	const { encounter, makeStore } = useEncounterContext();
+	const { getCreature } = useBestiaryContext();
+	const { showCreature } = useSidePanelContext();
+
+	const [rollSkippedCount, setRollSkippedCount] = useState(0);
+	const [rollSingleSkipped, setRollSingleSkipped] = useState(false);
+
+	const handleRollInitiative = useCallback(
+		(id: CombatantId, mode: RollMode = "normal") => {
+			const diceRolls: [number, ...number[]] =
+				mode === "normal" ? [rollDice()] : [rollDice(), rollDice()];
+			const result = rollInitiativeUseCase(
+				makeStore(),
+				id,
+				diceRolls,
+				getCreature,
+				mode,
+			);
+			if (isDomainError(result)) {
+				setRollSingleSkipped(true);
+				const combatant = encounter.combatants.find((c) => c.id === id);
+				if (combatant?.creatureId) {
+					showCreature(combatant.creatureId);
+				}
+			}
+		},
+		[makeStore, getCreature, encounter.combatants, showCreature],
+	);
+
+	const handleRollAllInitiative = useCallback(
+		(mode: RollMode = "normal") => {
+			const result = rollAllInitiativeUseCase(
+				makeStore(),
+				rollDice,
+				getCreature,
+				mode,
+			);
+			if (!isDomainError(result) && result.skippedNoSource > 0) {
+				setRollSkippedCount(result.skippedNoSource);
+			}
+		},
+		[makeStore, getCreature],
+	);
+
+	return {
+		rollSkippedCount,
+		rollSingleSkipped,
+		dismissRollSkipped: useCallback(() => setRollSkippedCount(0), []),
+		dismissRollSingleSkipped: useCallback(
+			() => setRollSingleSkipped(false),
+			[],
+		),
+		handleRollInitiative,
+		handleRollAllInitiative,
+	} as const;
+}
--- a/apps/web/src/hooks/use-long-press.ts
+++ b/apps/web/src/hooks/use-long-press.ts
@@ -0,0 +1,32 @@
+import { useCallback, useRef } from "react";
+
+const LONG_PRESS_MS = 500;
+
+export function useLongPress(onLongPress: (e: React.TouchEvent) => void) {
+	const timerRef = useRef<ReturnType<typeof setTimeout>>(undefined);
+	const firedRef = useRef(false);
+
+	const onTouchStart = useCallback(
+		(e: React.TouchEvent) => {
+			firedRef.current = false;
+			timerRef.current = setTimeout(() => {
+				firedRef.current = true;
+				onLongPress(e);
+			}, LONG_PRESS_MS);
+		},
+		[onLongPress],
+	);
+
+	const onTouchEnd = useCallback((e: React.TouchEvent) => {
+		clearTimeout(timerRef.current);
+		if (firedRef.current) {
+			e.preventDefault();
+		}
+	}, []);
+
+	const onTouchMove = useCallback(() => {
+		clearTimeout(timerRef.current);
+	}, []);
+
+	return { onTouchStart, onTouchEnd, onTouchMove };
+}
--- a/apps/web/src/hooks/use-side-panel-state.ts
+++ b/apps/web/src/hooks/use-side-panel-state.ts
@@ -19,6 +19,7 @@ interface SidePanelState {

 interface SidePanelActions {
 	showCreature: (creatureId: CreatureId) => void;
+	updateCreature: (creatureId: CreatureId) => void;
 	showBulkImport: () => void;
 	showSourceManager: () => void;
 	dismissPanel: () => void;
@@ -52,6 +53,10 @@ export function useSidePanelState(): SidePanelState & SidePanelActions {
 		setIsRightPanelCollapsed(false);
 	}, []);

+	const updateCreature = useCallback((creatureId: CreatureId) => {
+		setPanelView({ mode: "creature", creatureId });
+	}, []);
+
 	const showBulkImport = useCallback(() => {
 		setPanelView({ mode: "bulk-import" });
 		setIsRightPanelCollapsed(false);
@@ -91,6 +96,7 @@ export function useSidePanelState(): SidePanelState & SidePanelActions {
 		pinnedCreatureId,
 		isWideDesktop,
 		showCreature,
+		updateCreature,
 		showBulkImport,
 		showSourceManager,
 		dismissPanel,
--- a/apps/web/src/hooks/use-theme.ts
+++ b/apps/web/src/hooks/use-theme.ts
@@ -0,0 +1,98 @@
+import { useCallback, useEffect, useSyncExternalStore } from "react";
+
+type ThemePreference = "system" | "light" | "dark";
+type ResolvedTheme = "light" | "dark";
+
+const STORAGE_KEY = "initiative:theme";
+
+const listeners = new Set<() => void>();
+let currentPreference: ThemePreference = loadPreference();
+
+function loadPreference(): ThemePreference {
+	try {
+		const raw = localStorage.getItem(STORAGE_KEY);
+		if (raw === "light" || raw === "dark" || raw === "system") return raw;
+	} catch {
+		// storage unavailable
+	}
+	return "system";
+}
+
+function savePreference(pref: ThemePreference): void {
+	try {
+		localStorage.setItem(STORAGE_KEY, pref);
+	} catch {
+		// quota exceeded or storage unavailable
+	}
+}
+
+function getSystemTheme(): ResolvedTheme {
+	if (typeof globalThis.matchMedia !== "function") return "dark";
+	return globalThis.matchMedia("(prefers-color-scheme: light)").matches
+		? "light"
+		: "dark";
+}
+
+function resolve(pref: ThemePreference): ResolvedTheme {
+	return pref === "system" ? getSystemTheme() : pref;
+}
+
+function applyTheme(resolved: ResolvedTheme): void {
+	document.documentElement.dataset.theme = resolved;
+}
+
+function notifyAll(): void {
+	for (const listener of listeners) {
+		listener();
+	}
+}
+
+// Apply on load
+applyTheme(resolve(currentPreference));
+
+// Listen for OS preference changes
+if (typeof globalThis.matchMedia === "function") {
+	globalThis
+		.matchMedia("(prefers-color-scheme: light)")
+		.addEventListener("change", () => {
+			if (currentPreference === "system") {
+				applyTheme(resolve("system"));
+				notifyAll();
+			}
+		});
+}
+
+function subscribe(callback: () => void): () => void {
+	listeners.add(callback);
+	return () => listeners.delete(callback);
+}
+
+function getSnapshot(): ThemePreference {
+	return currentPreference;
+}
+
+const CYCLE: ThemePreference[] = ["system", "light", "dark"];
+
+export function useTheme() {
+	const preference = useSyncExternalStore(subscribe, getSnapshot);
+	const resolved = resolve(preference);
+
+	useEffect(() => {
+		applyTheme(resolved);
+	}, [resolved]);
+
+	const setPreference = useCallback((pref: ThemePreference) => {
+		currentPreference = pref;
+		savePreference(pref);
+		applyTheme(resolve(pref));
+		notifyAll();
+	}, []);
+
+	const cycleTheme = useCallback(() => {
+		const idx = CYCLE.indexOf(currentPreference);
+		const next = CYCLE[(idx + 1) % CYCLE.length];
+		setPreference(next);
+	}, [setPreference]);
+
+	return { preference, resolved, setPreference, cycleTheme } as const;
+}
--- a/apps/web/src/index.css
+++ b/apps/web/src/index.css
@@ -19,12 +19,47 @@
 	--color-hover-neutral-bg: oklch(0.623 0.214 259 / 0.15);
 	--color-hover-action-bg: var(--color-muted);
 	--color-hover-destructive-bg: transparent;
+	--color-stat-heading: #fbbf24;
+	--color-stat-divider-from: oklch(0.5 0.1 65 / 0.6);
+	--color-stat-divider-via: oklch(0.5 0.1 65 / 0.4);
+	--color-hp-damage-hover-bg: oklch(0.25 0.05 25);
+	--color-hp-heal-hover-bg: oklch(0.25 0.05 155);
+	--color-active-row-bg: oklch(0.623 0.214 259 / 0.1);
+	--color-active-row-border: oklch(0.623 0.214 259 / 0.4);
 	--radius-sm: 0.25rem;
 	--radius-md: 0.5rem;
 	--radius-lg: 0.75rem;
 	--font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;
 }

+[data-theme="light"] {
+	--color-background: #eeecea;
+	--color-foreground: #374151;
+	--color-muted: #e0ddd9;
+	--color-muted-foreground: #6b7280;
+	--color-card: #f7f6f4;
+	--color-card-foreground: #374151;
+	--color-border: #ddd9d5;
+	--color-input: #cdc8c3;
+	--color-primary: #2563eb;
+	--color-primary-foreground: #ffffff;
+	--color-accent: #2563eb;
+	--color-destructive: #dc2626;
+	--color-hover-neutral: var(--color-primary);
+	--color-hover-action: var(--color-primary);
+	--color-hover-destructive: var(--color-destructive);
+	--color-hover-neutral-bg: oklch(0.623 0.214 259 / 0.08);
+	--color-hover-action-bg: var(--color-muted);
+	--color-hover-destructive-bg: transparent;
+	--color-stat-heading: #92400e;
+	--color-stat-divider-from: oklch(0.55 0.1 65 / 0.5);
+	--color-stat-divider-via: oklch(0.55 0.1 65 / 0.25);
+	--color-hp-damage-hover-bg: #fef2f2;
+	--color-hp-heal-hover-bg: #ecfdf5;
+	--color-active-row-bg: oklch(0.623 0.214 259 / 0.08);
+	--color-active-row-border: oklch(0.623 0.214 259 / 0.25);
+}
+
@keyframes concentration-shake {
 	0% {
 		translate: 0;
@@ -178,6 +213,11 @@
 	box-shadow:
 		0 0 15px -2px oklch(0.623 0.214 259 / 0.2),
 		inset 0 1px 0 0 oklch(0.7 0.15 259 / 0.1);
+
+	[data-theme="light"] & {
+		background-image: none;
+		box-shadow: 0 1px 3px 0 oklch(0 0 0 / 0.08);
+	}
 }

@utility panel-glow {
@@ -189,6 +229,11 @@
 	box-shadow:
 		0 0 20px -2px oklch(0.623 0.214 259 / 0.15),
 		inset 0 1px 0 0 oklch(0.7 0.15 259 / 0.1);
+
+	[data-theme="light"] & {
+		background-image: none;
+		box-shadow: -1px 0 6px 0 oklch(0 0 0 / 0.1);
+	}
 }

 * {
@@ -198,6 +243,16 @@

 body {
 	background-color: var(--color-background);
+	background-image: radial-gradient(
+		ellipse at 50% 40%,
+		oklch(0.26 0.055 250) 0%,
+		var(--color-background) 70%
+	);
+	background-attachment: fixed;
 	color: var(--color-foreground);
 	font-family: var(--font-sans);
 }
+
+[data-theme="light"] body {
+	background-image: none;
+}
--- a/apps/web/src/main.tsx
+++ b/apps/web/src/main.tsx
@@ -1,13 +1,36 @@
 import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
-import { App } from "./App";
+import { App } from "./App.js";
+import {
+	BestiaryProvider,
+	BulkImportProvider,
+	EncounterProvider,
+	InitiativeRollsProvider,
+	PlayerCharactersProvider,
+	SidePanelProvider,
+	ThemeProvider,
+} from "./contexts/index.js";
 import "./index.css";

 const root = document.getElementById("root");
 if (root) {
 	createRoot(root).render(
 		<StrictMode>
+			<ThemeProvider>
+				<EncounterProvider>
+					<BestiaryProvider>
+						<PlayerCharactersProvider>
+							<BulkImportProvider>
+								<SidePanelProvider>
+									<InitiativeRollsProvider>
 										<App />
+									</InitiativeRollsProvider>
+								</SidePanelProvider>
+							</BulkImportProvider>
+						</PlayerCharactersProvider>
+					</BestiaryProvider>
+				</EncounterProvider>
+			</ThemeProvider>
 		</StrictMode>,
 	);
 }
--- a/knip.json
+++ b/knip.json
@@ -5,6 +5,6 @@
 			"entry": ["scripts/*.mjs"]
 		},
 		"packages/*": {},
-		"apps/*": {}
+		"apps/web": {}
 	}
 }
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
 		"oxlint": "oxlint --tsconfig apps/web/tsconfig.json --type-aware",
 		"check:ignores": "node scripts/check-lint-ignores.mjs",
 		"check:classnames": "node scripts/check-cn-classnames.mjs",
-		"check": "pnpm audit --audit-level=high && knip && biome check . && oxlint --tsconfig apps/web/tsconfig.json --type-aware && node scripts/check-lint-ignores.mjs && node scripts/check-cn-classnames.mjs && tsc --build && vitest run && jscpd"
+		"check:props": "node scripts/check-component-props.mjs",
+		"check": "pnpm audit --audit-level=high && knip && biome check . && oxlint --tsconfig apps/web/tsconfig.json --type-aware && node scripts/check-lint-ignores.mjs && node scripts/check-cn-classnames.mjs && node scripts/check-component-props.mjs && tsc --build && vitest run && jscpd"
 	}
 }
--- a/packages/application/src/tests/roll-all-initiative-use-case.test.ts
+++ b/packages/application/src/tests/roll-all-initiative-use-case.test.ts
@@ -161,6 +161,48 @@ describe("rollAllInitiativeUseCase", () => {
 		expect(store.saved).toBeNull();
 	});

+	it("uses higher roll with advantage", () => {
+		const enc = encounterWithCombatants([
+			{ name: "A", creatureId: "creature-a" },
+		]);
+		const store = stubEncounterStore(enc);
+		const creature = makeCreature("creature-a");
+
+		// Alternating rolls: 5, 15 → advantage picks 15
+		// Dex 14 → modifier +2, so 15 + 2 = 17
+		let call = 0;
+		const result = rollAllInitiativeUseCase(
+			store,
+			() => (++call % 2 === 1 ? 5 : 15),
+			(id) => (id === CREATURE_A ? creature : undefined),
+			"advantage",
+		);
+
+		expectSuccess(result);
+		expect(requireSaved(store.saved).combatants[0].initiative).toBe(17);
+	});
+
+	it("uses lower roll with disadvantage", () => {
+		const enc = encounterWithCombatants([
+			{ name: "A", creatureId: "creature-a" },
+		]);
+		const store = stubEncounterStore(enc);
+		const creature = makeCreature("creature-a");
+
+		// Alternating rolls: 15, 5 → disadvantage picks 5
+		// Dex 14 → modifier +2, so 5 + 2 = 7
+		let call = 0;
+		const result = rollAllInitiativeUseCase(
+			store,
+			() => (++call % 2 === 1 ? 15 : 5),
+			(id) => (id === CREATURE_A ? creature : undefined),
+			"disadvantage",
+		);
+
+		expectSuccess(result);
+		expect(requireSaved(store.saved).combatants[0].initiative).toBe(7);
+	});
+
 	it("saves encounter once at the end", () => {
 		const enc = encounterWithCombatants([
 			{ name: "A", creatureId: "creature-a" },
--- a/packages/application/src/tests/roll-initiative-use-case.test.ts
+++ b/packages/application/src/tests/roll-initiative-use-case.test.ts
@@ -61,7 +61,7 @@ describe("rollInitiativeUseCase", () => {
 		const result = rollInitiativeUseCase(
 			store,
 			combatantId("unknown"),
-			10,
+			[10],
 			() => undefined,
 		);

@@ -80,7 +80,7 @@ describe("rollInitiativeUseCase", () => {
 		const result = rollInitiativeUseCase(
 			store,
 			combatantId("Fighter"),
-			10,
+			[10],
 			() => undefined,
 		);

@@ -96,7 +96,7 @@ describe("rollInitiativeUseCase", () => {
 		const result = rollInitiativeUseCase(
 			store,
 			combatantId("Goblin"),
-			10,
+			[10],
 			() => undefined,
 		);

@@ -116,7 +116,7 @@ describe("rollInitiativeUseCase", () => {
 		const result = rollInitiativeUseCase(
 			store,
 			combatantId("Goblin"),
-			10,
+			[10],
 			(id) => (id === GOBLIN_ID ? creature : undefined),
 		);

@@ -124,6 +124,42 @@ describe("rollInitiativeUseCase", () => {
 		expect(requireSaved(store.saved).combatants[0].initiative).toBe(12);
 	});

+	it("uses higher roll with advantage", () => {
+		const creature = makeCreature();
+		const enc = encounterWithCreatureLink("Goblin", GOBLIN_ID);
+		const store = stubEncounterStore(enc);
+
+		// Dex 14 -> modifier +2, advantage picks max(5, 15) = 15, 15 + 2 = 17
+		const result = rollInitiativeUseCase(
+			store,
+			combatantId("Goblin"),
+			[5, 15],
+			(id) => (id === GOBLIN_ID ? creature : undefined),
+			"advantage",
+		);
+
+		expect(isDomainError(result)).toBe(false);
+		expect(requireSaved(store.saved).combatants[0].initiative).toBe(17);
+	});
+
+	it("uses lower roll with disadvantage", () => {
+		const creature = makeCreature();
+		const enc = encounterWithCreatureLink("Goblin", GOBLIN_ID);
+		const store = stubEncounterStore(enc);
+
+		// Dex 14 -> modifier +2, disadvantage picks min(5, 15) = 5, 5 + 2 = 7
+		const result = rollInitiativeUseCase(
+			store,
+			combatantId("Goblin"),
+			[5, 15],
+			(id) => (id === GOBLIN_ID ? creature : undefined),
+			"disadvantage",
+		);
+
+		expect(isDomainError(result)).toBe(false);
+		expect(requireSaved(store.saved).combatants[0].initiative).toBe(7);
+	});
+
 	it("applies initiative proficiency bonus correctly", () => {
 		// CR 5 -> PB 3, dex 16 -> mod +3, initiativeProficiency 1
 		// modifier = 3 + 1*3 = 6, roll 8 + 6 = 14
@@ -145,7 +181,7 @@ describe("rollInitiativeUseCase", () => {
 		const result = rollInitiativeUseCase(
 			store,
 			combatantId("Monster"),
-			8,
+			[8],
 			(id) => (id === GOBLIN_ID ? creature : undefined),
 		);

--- a/packages/application/src/roll-all-initiative-use-case.ts
+++ b/packages/application/src/roll-all-initiative-use-case.ts
@@ -5,7 +5,9 @@ import {
 	type DomainError,
 	type DomainEvent,
 	isDomainError,
+	type RollMode,
 	rollInitiative,
+	selectRoll,
 	setInitiative,
 } from "@initiative/domain";
 import type { EncounterStore } from "./ports.js";
@@ -19,6 +21,7 @@ export function rollAllInitiativeUseCase(
 	store: EncounterStore,
 	rollDice: () => number,
 	getCreature: (id: CreatureId) => Creature | undefined,
+	mode: RollMode = "normal",
 ): RollAllResult | DomainError {
 	let encounter = store.get();
 	const allEvents: DomainEvent[] = [];
@@ -39,7 +42,10 @@ export function rollAllInitiativeUseCase(
 			cr: creature.cr,
 			initiativeProficiency: creature.initiativeProficiency,
 		});
-		const value = rollInitiative(rollDice(), modifier);
+		const roll1 = rollDice();
+		const effectiveRoll =
+			mode === "normal" ? roll1 : selectRoll(roll1, rollDice(), mode);
+		const value = rollInitiative(effectiveRoll, modifier);

 		if (isDomainError(value)) {
 			return value;
--- a/packages/application/src/roll-initiative-use-case.ts
+++ b/packages/application/src/roll-initiative-use-case.ts
@@ -6,7 +6,9 @@ import {
 	type DomainError,
 	type DomainEvent,
 	isDomainError,
+	type RollMode,
 	rollInitiative,
+	selectRoll,
 	setInitiative,
 } from "@initiative/domain";
 import type { EncounterStore } from "./ports.js";
@@ -14,8 +16,9 @@ import type { EncounterStore } from "./ports.js";
 export function rollInitiativeUseCase(
 	store: EncounterStore,
 	combatantId: CombatantId,
-	diceRoll: number,
+	diceRolls: readonly [number, ...number[]],
 	getCreature: (id: CreatureId) => Creature | undefined,
+	mode: RollMode = "normal",
 ): DomainEvent[] | DomainError {
 	const encounter = store.get();
 	const combatant = encounter.combatants.find((c) => c.id === combatantId);
@@ -50,7 +53,11 @@ export function rollInitiativeUseCase(
 		cr: creature.cr,
 		initiativeProficiency: creature.initiativeProficiency,
 	});
-	const value = rollInitiative(diceRoll, modifier);
+	const effectiveRoll =
+		mode === "normal"
+			? diceRolls[0]
+			: selectRoll(diceRolls[0], diceRolls[1] ?? diceRolls[0], mode);
+	const value = rollInitiative(effectiveRoll, modifier);

 	if (isDomainError(value)) {
 		return value;
--- a/packages/domain/src/tests/roll-initiative.test.ts
+++ b/packages/domain/src/tests/roll-initiative.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { rollInitiative } from "../roll-initiative.js";
+import { rollInitiative, selectRoll } from "../roll-initiative.js";
 import { isDomainError } from "../types.js";
 import { expectDomainError } from "./test-helpers.js";

@@ -63,3 +63,31 @@ describe("rollInitiative", () => {
 		});
 	});
 });
+
+describe("selectRoll", () => {
+	it("normal mode returns the first roll", () => {
+		expect(selectRoll(8, 15, "normal")).toBe(8);
+	});
+
+	it("advantage returns the higher roll", () => {
+		expect(selectRoll(8, 15, "advantage")).toBe(15);
+	});
+
+	it("advantage returns the higher roll (reversed)", () => {
+		expect(selectRoll(15, 8, "advantage")).toBe(15);
+	});
+
+	it("disadvantage returns the lower roll", () => {
+		expect(selectRoll(8, 15, "disadvantage")).toBe(8);
+	});
+
+	it("disadvantage returns the lower roll (reversed)", () => {
+		expect(selectRoll(15, 8, "disadvantage")).toBe(8);
+	});
+
+	it("equal rolls return the same value for all modes", () => {
+		expect(selectRoll(12, 12, "normal")).toBe(12);
+		expect(selectRoll(12, 12, "advantage")).toBe(12);
+		expect(selectRoll(12, 12, "disadvantage")).toBe(12);
+	});
+});
--- a/packages/domain/src/index.ts
+++ b/packages/domain/src/index.ts
@@ -84,7 +84,11 @@ export {
 	removeCombatant,
 } from "./remove-combatant.js";
 export { retreatTurn } from "./retreat-turn.js";
-export { rollInitiative } from "./roll-initiative.js";
+export {
+	type RollMode,
+	rollInitiative,
+	selectRoll,
+} from "./roll-initiative.js";
 export { type SetAcSuccess, setAc } from "./set-ac.js";
 export { type SetHpSuccess, setHp } from "./set-hp.js";
 export {
--- a/packages/domain/src/roll-initiative.ts
+++ b/packages/domain/src/roll-initiative.ts
@@ -1,5 +1,21 @@
 import type { DomainError } from "./types.js";

+export type RollMode = "normal" | "advantage" | "disadvantage";
+
+/**
+ * Selects the effective roll from two dice values based on the roll mode.
+ * Advantage takes the higher, disadvantage takes the lower.
+ */
+export function selectRoll(
+	roll1: number,
+	roll2: number,
+	mode: RollMode,
+): number {
+	if (mode === "advantage") return Math.max(roll1, roll2);
+	if (mode === "disadvantage") return Math.min(roll1, roll2);
+	return roll1;
+}
+
 /**
 * Pure function that computes initiative from a resolved dice roll and modifier.
 * The dice roll must be an integer in [1, 20].
--- a/scripts/check-component-props.mjs
+++ b/scripts/check-component-props.mjs
@@ -0,0 +1,99 @@
+/**
+ * Enforce a maximum number of explicitly declared props per component
+ * interface.
+ *
+ * Components should consume shared application state via React context
+ * providers, not prop drilling. Props are reserved for per-instance
+ * configuration (a specific data item, a layout variant, a ref).
+ *
+ * Only scans component files (not hooks, adapters, etc.) and only
+ * counts properties declared directly in *Props interfaces — inherited
+ * or extended HTML attributes are not counted.
+ */
+
+import { execSync } from "node:child_process";
+import { readFileSync } from "node:fs";
+import { relative } from "node:path";
+
+const MAX_PROPS = 8;
+
+const files = execSync(
+	"git ls-files -- 'apps/web/src/components/*.tsx' 'apps/web/src/components/**/*.tsx'",
+	{ encoding: "utf-8" },
+)
+	.trim()
+	.split("\n")
+	.filter(Boolean);
+
+let errors = 0;
+
+const propsRegex = /^(?:export\s+)?interface\s+(\w+Props)\s*\{/;
+
+for (const file of files) {
+	const content = readFileSync(file, "utf-8");
+	const lines = content.split("\n");
+
+	let inInterface = false;
+	let interfaceName = "";
+	let braceDepth = 0;
+	let parenDepth = 0;
+	let propCount = 0;
+	let startLine = 0;
+
+	for (let i = 0; i < lines.length; i++) {
+		const line = lines[i];
+
+		if (!inInterface) {
+			const match = propsRegex.exec(line);
+			if (match) {
+				inInterface = true;
+				interfaceName = match[1];
+				braceDepth = 0;
+				parenDepth = 0;
+				propCount = 0;
+				startLine = i + 1;
+			}
+		}
+
+		if (inInterface) {
+			for (const ch of line) {
+				if (ch === "{") braceDepth++;
+				if (ch === "}") braceDepth--;
+				if (ch === "(") parenDepth++;
+				if (ch === ")") parenDepth--;
+			}
+
+			// Count prop lines at brace depth 1 and not inside function params:
+			// Matches "  propName?: type" and "  readonly propName: type"
+			if (
+				braceDepth === 1 &&
+				parenDepth === 0 &&
+				/^\s+(?:readonly\s+)?\w+\??\s*:/.test(line)
+			) {
+				propCount++;
+			}
+
+			if (braceDepth === 0) {
+				if (propCount > MAX_PROPS) {
+					const rel = relative(process.cwd(), file);
+					console.error(
+						`${rel}:${startLine}: ${interfaceName} has ${propCount} props (max ${MAX_PROPS})`,
+					);
+					errors++;
+				}
+				inInterface = false;
+			}
+		}
+	}
+}
+
+if (errors > 0) {
+	console.error(
+		`\n${errors} component(s) exceed the ${MAX_PROPS}-prop limit. Use React context to reduce props.`,
+	);
+	process.exit(1);
+} else {
+	console.log(
+		`check-component-props: all component interfaces within ${MAX_PROPS}-prop limit`,
+	);
+}
--- a/specs/004-bestiary/spec.md
+++ b/specs/004-bestiary/spec.md
@@ -264,7 +264,7 @@ As a DM with a creature pinned, I want to collapse the right (browse) panel inde
 ### Edge Cases

 - User pins a creature and then that creature is removed from the encounter: the pinned panel continues displaying the creature's stat block (data is already loaded).
- Active combatant changes while panel is open or collapsed: advancing turns does not auto-show or update the stat block panel. The panel only changes when the user explicitly clicks a book icon. If the panel is collapsed, it stays collapsed.
+- Active combatant changes while panel is open: if the new active combatant has a creature, the panel auto-updates to show that creature's stat block. If the new active combatant has no creature, the panel remains on the previous creature. If the panel is collapsed, it stays collapsed. If the panel is closed, it stays closed.
 - Viewport resized from wide to narrow while a creature is pinned: the pinned (left) panel is hidden and the pin button disappears; resizing back to wide restores the pinned panel.
 - User is in bulk import mode and tries to collapse: the collapse/expand behavior applies to the bulk import panel identically.
 - Panel showing a source fetch prompt: the pin button is hidden.
Author	SHA1	Message	Date
Lukas	86768842ff	Refactor App.tsx from god component to context-based architecture All checks were successful CI / check (push) Successful in 1m18s Details CI / build-image (push) Has been skipped Details Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-19 15:33:33 +01:00
Lukas	6584d8d064	Add advantage/disadvantage rolling for initiative All checks were successful CI / check (push) Successful in 1m23s Details CI / build-image (push) Has been skipped Details Right-click or long-press the d20 button (per-combatant or Roll All) to open a context menu with Advantage and Disadvantage options. Normal left-click behavior is unchanged. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-18 09:16:04 +01:00
Lukas	7f38cbab73	Preserve stat block panel collapsed state on turn advance Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-17 23:23:52 +01:00
Lukas	2971898f0c	Add dark and light theme with OS preference support All checks were successful CI / check (push) Successful in 1m22s Details CI / build-image (push) Successful in 36s Details Follow OS color scheme by default, with a three-way toggle (System / Light / Dark) in the kebab menu. Light theme uses warm, neutral tones with soft card-to-background contrast. Semantic colors (damage, healing, conditions) keep their hue across themes. Closes #10 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-17 13:24:18 +01:00
Lukas	43780772f6	Improve bestiary icon UX and auto-update stat block on turn change - Use Book/BookOpen icons to indicate stat block open state - Bump combatant icons (bestiary + PC) from 14px to 16px - Use text-foreground for bestiary icon visibility - Auto-update stat block panel to active combatant's creature on turn advance - Update bestiary spec edge case to reflect new behavior Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-17 12:48:38 +01:00
Lukas	7b3dbe2069	Use ghost buttons for turn navigation to blend with top bar Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-17 12:18:31 +01:00
Lukas	827a3978e9	Show toast and open source panel when rolling initiative without loaded source When a user clicks the d20 to roll initiative for a single combatant whose bestiary source isn't cached, show an informative toast and open the stat block panel so they can load the source directly. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-17 12:11:20 +01:00
Lukas	f024562a7d	Auto-open stat block panel when adding first bestiary creature When the side panel is in its initial closed state (not user-collapsed), adding a combatant from the bestiary now opens the panel to show its stat block. This makes the panel discoverable without overriding a deliberate collapse. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-17 12:03:34 +01:00
Lukas	dfef2194a5	Add subtle radial gradient to app background All checks were successful CI / check (push) Successful in 1m25s Details CI / build-image (push) Successful in 20s Details Apply a soft blue radial glow centered on the viewport to add depth to the dark background, replacing the flat solid color. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-16 14:27:38 +01:00