debug: synthesize wheel events for mobile terminal touch scrolling

Replace manual scrollLines/SGR injection with synthetic WheelEvent
instances dispatched into xterm.js's .xterm-viewport. Keep the debug
overlay so we can verify whether the gesture is recognized and whether
the wheel event reaches xterm.js.

Quality gates: typecheck, lint clean.

.pi-map.index.md

@@ -16,7 +16,7 @@ dir: .
 Trust boundary: index routes, map orients, source decides.
 
 ## role
-Infrastructure and deployment configuration package for a self-hosted project management platform with containerized services, SSO integration, and reverse proxy support.
+Infrastructure and deployment configuration package for a self-hosted project management platform with OAuth2 authentication, providing containerized orchestration, environment templates, and development tooling.
 ## parent
 -
 ## children

.pi-map.md

@@ -18,7 +18,7 @@ index: ./.pi-map.index.md
 Trust boundary: index routes, map orients, source decides.
 
 ## role
-Infrastructure and deployment configuration package for a self-hosted project management platform with containerized services, SSO integration, and reverse proxy support.
+Infrastructure and deployment configuration package for a self-hosted project management platform with OAuth2 authentication, providing containerized orchestration, environment templates, and development tooling.
 ## files
 - .env.example | Provides a template of environment variables for configuring a Headquarter application with PostgreSQL, Redis, Authentik SSO, and Docker/Traefik deployment
 - .gitignore | Specifies files and directories for Git to ignore across a multi-language project with Python, Node, and custom tooling | dep: Git
@@ -31,7 +31,7 @@ Infrastructure and deployment configuration package for a self-hosted project ma
 - progress.md | Tracks completed and remaining tasks for a backend-frontend code refactoring project organized in 7 phases
 - swap-pane | Empty file with no functionality
 ## arch
-Docker Compose-based microservices architecture with environment-driven configuration, Traefik reverse proxy integration, and multi-service orchestration (PostgreSQL, Redis, API, frontend) supporting both standalone and proxy-terminated deployment modes.
+Docker Compose-based microservices architecture with frontend/backend separation, PostgreSQL/Redis data layer, Traefik reverse proxy integration, and environment-driven configuration management following twelve-factor app principles.
 ## tags
 docker, redis, git, application, postgresql, compose, traefik, project
 ## symbols

apps/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps
 
 ## role
-Container directory for all deployable application targets in the monorepo.
+Contains the main deployable application modules or entry points for the project.
 ## parent
 index: ./.pi-map.index.md
 map: ./.pi-map.md

apps/.pi-map.md

@@ -4,10 +4,10 @@ dir: apps
 index: apps/.pi-map.index.md
 
 ## role
-Container directory for all deployable application targets in the monorepo.
+Contains the main deployable application modules or entry points for the project.
 ## files
 ## arch
-Monorepo workspace structure where each subdirectory represents an independently deployable application sharing common libraries and tools.
+Modular monolith or microservices architecture with separate application boundaries, each potentially having its own configuration, dependencies, and lifecycle.
 ## tags
 -
 ## symbols

apps/web/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web
 
 ## role
-Frontend web application providing a browser-based React/TypeScript UI with code editing, terminal, and routing capabilities.
+Frontend web application providing a React-based UI with code editing, terminal, and routing capabilities for the "headquarter" project.
 ## parent
 index: apps/.pi-map.index.md
 map: apps/.pi-map.md

apps/web/.pi-map.md

@@ -4,7 +4,7 @@ dir: apps/web
 index: apps/web/.pi-map.index.md
 
 ## role
-Frontend web application providing a browser-based React/TypeScript UI with code editing, terminal, and routing capabilities.
+Frontend web application providing a React-based UI with code editing, terminal, and routing capabilities for the "headquarter" project.
 ## files
 - .env.example | Template file defining example environment variables for frontend API and application URL configuration
 - .eslintrc.cjs | Configures ESLint for a TypeScript browser project with modern ECMAScript module support | dep: @typescript-eslint/parser, @typescript-eslint/eslint-plugin, eslint
@@ -16,7 +16,7 @@ Frontend web application providing a browser-based React/TypeScript UI with code
 - tsconfig.json | TypeScript configuration file for a React project using Vite with modern ES2020 target and bundler module resolution | dep: typescript, react, vite
 - vite.config.ts | Configures Vite build tool for a React project with custom dev server port and Vitest test settings. | dep: vite, @vitejs/plugin-react
 ## arch
-Modern Vite-based SPA architecture with TypeScript, nginx static serving, multi-stage Docker containerization, and client-side routing.
+Modern React SPA built with Vite and TypeScript, using nginx for production serving with client-side routing, multi-stage Docker deployment, and Vitest for testing.
 ## tags
 react, eslint, vite, typescript, dom, application, nginx, web
 ## symbols

apps/web/src/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web/src
 
 ## role
-Entry point and core infrastructure for a React web application handling routing, authentication, and shared type definitions.
+Frontend web application entry point and core infrastructure for a React-based collaborative development platform.
 ## parent
 index: apps/web/.pi-map.index.md
 map: apps/web/.pi-map.md

apps/web/src/.pi-map.md

@@ -4,13 +4,13 @@ dir: apps/web/src
 index: apps/web/src/.pi-map.index.md
 
 ## role
-Entry point and core infrastructure for a React web application handling routing, authentication, and shared type definitions.
+Frontend web application entry point and core infrastructure for a React-based collaborative development platform.
 ## files
 - main.tsx | Bootstraps a React application with routing, authentication, and session management providers. | dep: react, react-dom/client, react-router-dom, ./router, ./state/auth, ./state/sessions, ./styles/tokens.css, ./styles/global.css, ./styles/utilities.css, ./styles/syntax-highlight.css, ./styles/pages/git-history.css, ./styles/pages/projects.css, ./styles/pages/sessions.css, ./styles/pages/ssh-keys.css, ./styles/pages/workspace-detail.css, ./styles/pages/workspaces.css, react-dom
 - router.tsx | Defines the React Router configuration for a web application with protected routes, nested layouts, and redirects. | exp: AppRouter | dep: react-router-dom, ./components/app-shell, ./components/protected-route, ./pages/DashboardPage, ./pages/PlaceholderPage, ./pages/ProfilePage, ./pages/ProjectsPage, ./pages/GitRepositoriesPage, ./pages/GitHistoryPage, ./pages/ProjectSettingsPage, ./pages/SettingsPage, ./pages/TerminalPage, ./pages/ToolWorkshopPage, ./pages/SshKeysPage, ./pages/ConfigProfilesPage, ./pages/SessionsPage, ./pages/WorkspacesPage, ./pages/WorkspaceDetailPage
 - types.ts | Defines TypeScript type definitions for user sessions, projects, repositories, and workspaces in an application. | exp: SessionUser, SessionPayload, Project, WorkspaceSummary, RepositorySummary, ProjectWithRepos
 ## arch
-Provider composition pattern with React Router v6 (nested routes, layout routes, protected route guards), context-based auth/session management, and centralized TypeScript domain models.
+Modular React SPA using React Router v6 with nested route layouts, protected route guards via authentication context, and centralized TypeScript domain models for session/workspace/project entities.
 ## tags
 pages, styles, css, router, react, session, dom, project
 ## symbols

apps/web/src/components/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web/src/components
 
 ## role
-Provides reusable, accessible UI primitives and layout components for the web application, including navigation, feedback states, icons, code display, and authentication guards.
+Provides reusable, accessible UI components and utilities for rendering the application shell, data states, icons, code display, notifications, and route protection in a React web application.
 ## parent
 index: apps/web/src/.pi-map.index.md
 map: apps/web/src/.pi-map.md

apps/web/src/components/.pi-map.md

@@ -4,7 +4,7 @@ dir: apps/web/src/components
 index: apps/web/src/components/.pi-map.index.md
 
 ## role
-Provides reusable, accessible UI primitives and layout components for the web application, including navigation, feedback states, icons, code display, and authentication guards.
+Provides reusable, accessible UI components and utilities for rendering the application shell, data states, icons, code display, notifications, and route protection in a React web application.
 ## files
 - app-shell.tsx | Renders the main application shell layout with navigation, header, session management, and mobile-responsive behavior for a React Router-based SPA. | exp: AppShell | dep: react-router-dom, ../api/sessions, ../hooks/use-theme, ../state/auth, ../state/sessions, ../hooks/use-mobile-viewport, ../state/events, ../state/toast, ../state/notifications, ./features/notification/event-toast-bridge, ./features/notification/notification-center, ./icon, ./features/mobile/mobile-nav, ./features/tool/start-tool-fab, ../utils/icons
 - code-editor.tsx | A React component that renders a syntax-highlighted code editor with line numbers using react-simple-code-editor. | exp: CodeEditor | dep: react, react-simple-code-editor, ../utils/language
@@ -17,7 +17,7 @@ Provides reusable, accessible UI primitives and layout components for the web ap
 - toast-rules.test.ts | Unit tests for mapping instance events to toast notification categories and severities | dep: vitest, ./toast-rules, ../types/events
 - toast-rules.ts | Maps instance events to toast notifications with deduplication logic to prevent spam | exp: func:mapEventToCategory(event: InstanceEventPayload) → string, call:event.event.startsWith, func:mapEventToSeverity(event: InstanceEventPayload) → "info" | "warning" | "error" | "success", func:handleEventToast(event: InstanceEventPayload) → void, call:shouldShowToast, call:toast.info, call:toast.success, call:toast.warning, call:toast.error, func:clearToastDedup() → void, call:lastToastTime.clear | dep: ../state/toast, ../types/events, toast state module, InstanceEventPayload type
 ## arch
-Component-based React architecture with functional components, composition patterns, separation of concerns (presentation vs logic), utility-first modules, and test co-location; integrates third-party libraries (Phosphor icons, react-simple-code-editor) with thin abstraction wrappers.
+Component-based React architecture with functional components, composition patterns, separation of concerns (presentation vs logic), and test coverage for critical utilities; integrates third-party libraries (Phosphor icons, react-simple-code-editor) and React Router for SPA navigation.
 ## tags
 toast, icon, react, state, code, loading, event, editor
 ## symbols

apps/web/src/components/features/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web/src/components/features
 
 ## role
-Contains reusable React components that implement specific product features and business logic for the web application.
+Contains reusable React components that implement specific user-facing features and functionality across the web application.
 ## parent
 index: apps/web/src/components/.pi-map.index.md
 map: apps/web/src/components/.pi-map.md

apps/web/src/components/features/.pi-map.md

@@ -4,10 +4,10 @@ dir: apps/web/src/components/features
 index: apps/web/src/components/features/.pi-map.index.md
 
 ## role
-Contains reusable React components that implement specific product features and business logic for the web application.
+Contains reusable React components that implement specific user-facing features and functionality across the web application.
 ## files
 ## arch
-Feature-based component organization following domain-driven design principles, likely with co-located components, hooks, and utilities per feature area.
+Feature-based component organization with domain-specific UI building blocks following React composition patterns, likely co-located with related hooks, utilities, or sub-components for each feature area.
 ## tags
 -
 ## symbols

apps/web/src/components/features/terminal/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web/src/components/features/terminal
 
 ## role
-Provides cross-platform terminal UI components for desktop and mobile with session management, special key input, and xterm.js WebSocket connectivity.
+Provides a cross-platform terminal emulator interface with WebSocket backend connectivity, supporting multiple sessions, special key input, and responsive desktop/mobile layouts.
 ## parent
 index: apps/web/src/components/features/.pi-map.index.md
 map: apps/web/src/components/features/.pi-map.md

apps/web/src/components/features/terminal/.pi-map.md

@@ -4,7 +4,7 @@ dir: apps/web/src/components/features/terminal
 index: apps/web/src/components/features/terminal/.pi-map.index.md
 
 ## role
-Provides cross-platform terminal UI components for desktop and mobile with session management, special key input, and xterm.js WebSocket connectivity.
+Provides a cross-platform terminal emulator interface with WebSocket backend connectivity, supporting multiple sessions, special key input, and responsive desktop/mobile layouts.
 ## files
 - DesktopTerminalView.tsx | Renders a desktop-optimized terminal view with session tabs, fullscreen mode, font controls, and reset confirmation dialog | exp: DesktopTerminalView | dep: react, ./terminal, ./terminal-session-tabs, ../../../api/terminal, React, TerminalComponent, TerminalSessionTabs, TerminalSession type
 - MobileTerminalView.tsx | Renders a mobile-optimized terminal interface with toolbar, session tabs, terminal output, and special keys input controls. | exp: MobileTerminalView | dep: react, ./terminal, ./terminal-session-tabs, ../../icon, ./special-keys-strip, ./special-keys-panel, ../../../hooks/use-special-keys, ../../../api/terminal
@@ -12,9 +12,9 @@ Provides cross-platform terminal UI components for desktop and mobile with sessi
 - special-keys-strip.tsx | Renders a strip of buttons for sending special keyboard keys (Esc, Tab, arrows, etc.) with optional modifier support for a terminal interface. | exp: SpecialKeysStrip | dep: react, ../../../hooks/use-special-keys, React, use-special-keys hook
 - terminal-session-tabs.test.tsx | Tests a React component that renders interactive terminal session tabs with selection, close confirmation, renaming, creation limits, and status indicators. | dep: @testing-library/react, vitest, ./terminal-session-tabs
 - terminal-session-tabs.tsx | Renders a tabbed interface for managing multiple terminal sessions with selection, creation, renaming, and close confirmation features. | exp: TerminalSessionInfo, TerminalSessionTabsProps, TerminalSessionTabs | dep: react, React
-- terminal.tsx | React component that renders an interactive xterm.js terminal with WebSocket connectivity, mobile touch support, flow control, heartbeat monitoring, and reconnection logic. | exp: TerminalProps, TerminalRef, TerminalComponent | dep: react, xterm, xterm-addon-fit, xterm-addon-web-links, xterm/css/xterm.css, ../../../hooks/use-special-keys, React, use-special-keys hook
+- terminal.tsx | A React component that renders an interactive terminal emulator using xterm.js, connecting to a WebSocket backend with features like mobile touch scrolling, font resizing, flow control, heartbeat monitoring, and automatic reconnection. | exp: TerminalProps, TerminalRef, TerminalComponent | dep: react, xterm, xterm-addon-fit, xterm-addon-web-links, xterm/css/xterm.css, ../../../hooks/use-special-keys
 ## arch
-Component-based architecture with platform-specific view variants (Desktop/Mobile), shared session tabs state management, modular special key input panels, and a core terminal component handling WebSocket lifecycle with heartbeat/reconnection logic.
+Component-based architecture with platform-specific view variants (Desktop/Mobile), compound component pattern for terminal subsystems (tabs, special keys, xterm.js integration), and WebSocket-based real-time communication with reconnection and heartbeat monitoring.
 ## tags
 terminal, special, keys, session, react, tabs, view, renders
 ## symbols

apps/web/src/components/features/terminal/terminal.tsx

@@ -355,13 +355,41 @@ export const TerminalComponent = React.forwardRef<TerminalRef, TerminalProps>(
 			// In normal mode xterm.js has a scrollable viewport; in alternate
 			// screen (tmux/vim) there is no scrollback and the only way to
 			// scroll is to send mouse-wheel protocol sequences to the
-			// application.  We detect which situation we're in by checking
+			// application.  We detect the active buffer by reference equality
-			// whether the viewport has scrollable height.
+			// (term.buffer.active === term.buffer.alternate) because the
+			// `type` string can be unreliable in some xterm.js versions.
 			let touchCleanup: (() => void) | undefined;
 			if (isMobile) {
 				let startY = 0;
 				let startX = 0;
 				let isScrolling = false;
+				let debugOverlay: HTMLDivElement | null = null;
+				const showDebug = (msg: string) => {
+					if (!debugOverlay) {
+						debugOverlay = document.createElement("div");
+						debugOverlay.style.position = "fixed";
+						debugOverlay.style.bottom = "120px";
+						debugOverlay.style.left = "8px";
+						debugOverlay.style.right = "8px";
+						debugOverlay.style.zIndex = "9999";
+						debugOverlay.style.background = "rgba(0,0,0,0.8)";
+						debugOverlay.style.color = "#0f0";
+						debugOverlay.style.fontFamily = "monospace";
+						debugOverlay.style.fontSize = "11px";
+						debugOverlay.style.padding = "8px";
+						debugOverlay.style.borderRadius = "6px";
+						debugOverlay.style.pointerEvents = "none";
+						debugOverlay.style.whiteSpace = "pre-wrap";
+						debugOverlay.style.maxHeight = "120px";
+						debugOverlay.style.overflow = "auto";
+						document.body.appendChild(debugOverlay);
+					}
+					const line = `${new Date().toLocaleTimeString()} ${msg}`;
+					debugOverlay.textContent =
+						line +
+						"\n" +
+						debugOverlay.textContent?.split("\n").slice(0, 8).join("\n");
+				};
 
 				const onTouchStart = (e: TouchEvent) => {
 					if (e.touches.length === 1) {
@@ -375,46 +403,49 @@ export const TerminalComponent = React.forwardRef<TerminalRef, TerminalProps>(
 					const touch = e.touches[0];
 					const deltaY = startY - touch.clientY;
 					const deltaX = Math.abs(startX - touch.clientX);
+					showDebug(`move dy=${deltaY.toFixed(0)} dx=${deltaX.toFixed(0)} scrolling=${isScrolling}`);
+
+					// Decide early whether this is a vertical scroll gesture.
 					if (!isScrolling) {
-						if (Math.abs(deltaY) > deltaX && Math.abs(deltaY) > 4) {
+						if (Math.abs(deltaY) > deltaX && Math.abs(deltaY) > 2) {
 							isScrolling = true;
 						}
 					}
-					if (isScrolling) {
+					if (!isScrolling) return;
-						e.preventDefault();
-						const viewport = container.querySelector(
-							".xterm-viewport",
-						) as HTMLElement | null;
-						if (!viewport) return;
 
-						// If the viewport is scrollable, scroll it directly.
+					// Take over the gesture so the browser never scrolls the
-						// Otherwise we are in alternate screen (tmux/vim) and must
+					// page or the terminal canvas. We synthesize wheel events
-						// send SGR 1006 mouse-wheel protocol data.
+					// and dispatch them into xterm.js, which already handles
-						const hasScrollback = viewport.scrollHeight > viewport.clientHeight;
+					// both normal buffer scrolling and alternate-screen apps
-						if (hasScrollback) {
+					// (tmux/vim) correctly.
-							viewport.scrollTop += deltaY;
+					e.preventDefault();
-						} else {
+
-							const ws = wsRef.current;
+					const target = container.querySelector(".xterm-viewport") as
-							if (ws?.readyState === WebSocket.OPEN && termRef.current) {
+						| HTMLElement
-								// Use the cursor position as the wheel location so
+						| null;
-								// tmux knows which pane to scroll.
+					if (target) {
-								const buf = termRef.current.buffer.active;
+						showDebug(`dispatch wheel deltaY=${deltaY.toFixed(0)}`);
-								const col = buf.cursorX + 1;
+						const wheel = new WheelEvent("wheel", {
-								const row = buf.cursorY + 1;
+							deltaY,
-								// SGR 1006: 64 = wheel-up, 65 = wheel-down
+							deltaX: 0,
-								const btn = deltaY > 0 ? 64 : 65;
+							deltaZ: 0,
-								ws.send(`\x1b[<${btn};${col};${row}M`);
+							clientX: touch.clientX,
-							}
+							clientY: touch.clientY,
+							screenX: touch.screenX,
+							screenY: touch.screenY,
+							bubbles: true,
+							cancelable: true,
+						});
+						target.dispatchEvent(wheel);
 					}
 					startY = touch.clientY;
-					}
 				};
 				const onTouchEnd = () => {
 					isScrolling = false;
 				};
 
 				container.addEventListener("touchstart", onTouchStart, {
-					passive: true,
+					passive: false,
 					capture: true,
 				});
 				container.addEventListener("touchmove", onTouchMove, {

apps/web/src/styles/.pi-map.index.md

@@ -2,7 +2,7 @@
 dir: apps/web/src/styles
 
 ## role
-Provides the complete visual design system and styling foundation for a web application, including themes, utilities, and component-specific styles.
+Provides the complete visual design system and styling foundation for the web application, encompassing global styles, design tokens, utility classes, and component-specific styles.
 ## parent
 index: apps/web/src/.pi-map.index.md
 map: apps/web/src/.pi-map.md

apps/web/src/styles/.pi-map.md

@@ -4,16 +4,16 @@ dir: apps/web/src/styles
 index: apps/web/src/styles/.pi-map.index.md
 
 ## role
-Provides the complete visual design system and styling foundation for a web application, including themes, utilities, and component-specific styles.
+Provides the complete visual design system and styling foundation for the web application, encompassing global styles, design tokens, utility classes, and component-specific styles.
 ## files
 - global.css | Defines global CSS styles for a web application shell layout, navigation, cards, forms, dialogs, settings pages, and responsive design patterns. | dep: CSS custom properties (CSS variables: --border, --panel, --brand, --muted, --ink, --bg, --danger, --success, --warning, --font-size-xs, --font-size-sm, --space-2, --space-3, --space-4, --space-5)
 - syntax-highlight.css | Stylesheet for a syntax highlighting component with toolbar, line numbers, code display, and Prism.js theme integration | dep: Prism.js
 - tokens.css | Defines a comprehensive CSS design token system with light/dark themes, spacing scales, breakpoints, and fluid typography for a web application.
-- utilities.css | Provides a comprehensive responsive CSS utility system with terminal-specific styling, mobile adaptations, and component patterns for a web application. | dep: CSS custom properties (var(--space-*), var(--border), var(--bg), var(--text), var(--brand), var(--muted), var(--success), var(--danger), var(--danger-light)), xterm.js (terminal integration)
+- utilities.css | Provides responsive CSS utility classes and component-specific styles for a web application featuring terminals, dialogs, tables, forms, and navigation with mobile-first breakpoints | dep: CSS custom properties (variables like --space-*, --border, --bg, --brand, --muted, --success, --danger, --text-xs, --text-sm), xterm.js (terminal library)
 ## arch
-Token-based CSS architecture using CSS custom properties for light/dark theming, with layered stylesheets separating tokens, global styles, utilities, and component-specific styling, supporting responsive and fluid design patterns.
+CSS custom properties (variables) based theming system with light/dark mode support, mobile-first responsive breakpoints, fluid typography scales, utility-first class patterns, and modular separation of concerns across tokens, utilities, global layouts, and component-specific styles.
 ## tags
-var(, space, global, css, web, application, syntax, defines
+space, global, css, web, application, syntax, defines, styles
 ## symbols
 -
 ## workflows

apps/web/src/styles/utilities.css

@@ -553,6 +553,12 @@ a.nav-item,
 	overflow: hidden;
 }
 
+/* Let xterm.js's own viewport handle touch; we only lock the outer page */
+.terminal-container .xterm-viewport {
+	touch-action: auto;
+	overscroll-behavior: auto;
+}
+
 /* xterm.js manages its own positioning and sizing */
 
 .terminal-container canvas {
@@ -566,6 +572,11 @@ a.nav-item,
 	padding: 0;
 }
 
+.terminal-wrapper.mobile {
+	touch-action: none;
+	overscroll-behavior: none;
+}
+
 /* Ensure xterm viewport fills container properly */
 /* Responsive terminal */
 @media (max-width: 767px) {
@@ -855,17 +866,23 @@ a.nav-item,
    Mobile Terminal Overlay
    ============================================ */
 
-/* Mobile terminal page — no padding, terminal fills viewport */
+/* Mobile terminal page — no padding, terminal fills viewport, locked in place */
 .terminal-page.mobile {
 	padding: 0;
 	gap: 0;
 	height: 100vh;
 	height: 100dvh;
-	position: relative;
+	position: fixed;
+	top: 0;
+	left: 0;
+	right: 0;
+	bottom: 0;
 	overflow: hidden;
+	touch-action: none;
+	overscroll-behavior: none;
 }
 
-/* Overlay status bar — floats over terminal, never resizes it */
+/* Overlay status bar — floats over terminal; only its buttons consume pointer events */
 .mobile-terminal-overlay {
 	position: absolute;
 	top: 0;
@@ -874,11 +891,21 @@ a.nav-item,
 	z-index: 100;
 	background: #2d2d2d;
 	border-bottom: 1px solid #3e3e3e;
+	pointer-events: none;
 	transition:
 		transform 0.3s ease,
 		opacity 0.3s ease;
 }
 
+.mobile-terminal-overlay.visible {
+	pointer-events: auto;
+}
+
+.mobile-terminal-overlay > *,
+.mobile-terminal-overlay-tabs {
+	pointer-events: auto;
+}
+
 .mobile-terminal-overlay.hidden {
 	transform: translateY(-100%);
 	opacity: 0;
@@ -978,13 +1005,15 @@ a.nav-item,
 	border-bottom: none;
 }
 
-/* Terminal content — always fills full viewport on mobile */
+/* Terminal content — always fills full viewport on mobile, locked against page scroll */
 .terminal-page-content.mobile-full {
 	flex: 1;
 	min-height: 0;
 	border: none;
 	border-radius: 0;
 	overflow: hidden;
+	touch-action: none;
+	overscroll-behavior: none;
 }
 
 /* Mobile fullscreen */