/* ========================================================================== app.css — touch shell foundation: self-hosted fonts, design tokens, blueprint primitives, and shared component/text-role classes. Values are ported verbatim from the committed design references: docs/design/touch-app-handoff/README.md (token block) and docs/design/touch-app-handoff/design/industry-tokens.css (.blueprint, .corner, .duotone, .btn*, .input, .field, .tag rules), with dark-theme overrides from the page-level