NotFoundComponent
404 page template. Dark theme, monospace, “Go home” link. Drop-in notFoundComponent for TanStack Router and TanStack Start.
Source
Section titled “Source”// @dx-components v1.0.0
const STYLES = ` .dx-error, .dx-error-page, .dx-not-found, .dx-pending { --dx-bg: #0d0d0d; --dx-text: #e8e8e8; --dx-muted: #888; --dx-border: #2a2a2a; --dx-font: "Geist Mono", "Fira Code", monospace; }
@media (prefers-color-scheme: light) { .dx-error, .dx-error-page, .dx-not-found, .dx-pending { --dx-bg: #fff; --dx-text: #111; --dx-muted: #666; --dx-border: #ddd; --dx-font: system-ui, -apple-system, sans-serif; } }
.dx-not-found { font-family: var(--dx-font); font-size: 0.8125rem; line-height: 1.6; background: var(--dx-bg); color: var(--dx-text); min-height: 100dvh; padding: 2rem; box-sizing: border-box; display: flex; flex-direction: column; align-items: flex-start;
& .dx-not-found__badge { background: var(--dx-border); color: var(--dx-muted); font-weight: 700; font-size: 0.6875rem; padding: 0.125em 0.5em; border-radius: 0.1875rem; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 1.5rem; }
& .dx-not-found__title { color: var(--dx-text); font-size: 0.9375rem; font-weight: 600; margin-bottom: 0.5rem; }
& .dx-not-found__message { color: var(--dx-muted); font-size: 0.8125rem; margin-bottom: 1.5rem; }
& .dx-not-found__link { padding: 0.35em 0.75em; font-size: 0.75rem; border: 1px solid var(--dx-border); border-radius: 0.25rem; background: #1a1a1a; color: var(--dx-muted); text-decoration: none; cursor: pointer;
&:hover { color: var(--dx-text); } } }`;
export interface NotFoundComponentProps { data?: unknown; isNotFound?: boolean; routeId?: string;}
export function NotFoundComponent(_props: NotFoundComponentProps) { return ( <> <style>{STYLES}</style> <div className="dx-not-found" data-dx-version="1.0.0"> <span className="dx-not-found__badge">404</span> <div className="dx-not-found__title">Page not found</div> <div className="dx-not-found__message">No route matched this URL.</div> <a className="dx-not-found__link" href="/"> Go home </a> </div> </> );}import { createRootRoute } from "@tanstack/react-router";import { NotFoundComponent } from "./components/NotFoundComponent";
export const Route = createRootRoute({ notFoundComponent: NotFoundComponent,});For TanStack Start root route, wrap in the same HTML shell pattern as ErrorComponent.