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* Kylä UI — public barrel for the zero-dependency core.\n *\n * Radix-backed components (e.g. Dialog) are intentionally NOT re-exported here;\n * they live behind their own import paths so Radix only loads when used (ADR-0002).\n */\n\n// Components\nexport { Button, type ButtonProps } from \"./src/components/button.tsx\";\nexport { KylaProvider, type Mode, useKylaMode } from \"./src/theme/provider.tsx\";\nexport {\n type ColorToken,\n type RadiusToken,\n type SpaceProperty,\n type SpaceToken,\n type State,\n tw,\n} from \"./src/theme/tw.ts\";\nexport { cn } from \"./src/utils/cn.ts\";\nexport { variants } from \"./src/utils/variants.ts\";\n","label",[141],"fb6b027f-bd29-4744-8112-2dc00068f0a8","deno.json","47d67822-6b3e-11f1-bad1-1607ee4eb77e",223,["D",1784059569607],"{\n \"compilerOptions\": {\n \"lib\": [\n \"dom\",\n \"dom.iterable\",\n \"dom.asynciterable\",\n \"deno.ns\",\n \"deno.unstable\"\n ],\n \"noImplicitAny\": false,\n \"strict\": false,\n \"types\": [\"https://www.val.town/types/valtown.d.ts\"]\n },\n \"experimental\": {\n \"unstable-node-globals\": true,\n \"unstable-sloppy-imports\": true,\n \"unstable-temporal\": true,\n \"unstable-worker-options\": true\n },\n \"fmt\": {\n \"exclude\": [\".vt/\"]\n },\n \"lint\": {\n \"include\": [\"mod.ts\", \"preview/\", \"src/\"],\n \"rules\": {\n \"exclude\": [\"no-explicit-any\", \"no-import-prefix\"]\n }\n },\n \"tasks\": {\n \"fmt\": \"deno fmt\",\n \"fmt:check\": \"deno fmt --check\",\n \"lint\": \"deno lint\",\n \"typecheck\": \"deno check --allow-import=esm.town,www.val.town,esm.sh,jsr.io mod.ts preview src\",\n \"test\": \"deno test --allow-import=esm.town,www.val.town,esm.sh,jsr.io\",\n \"check\": \"deno task fmt:check && deno task lint && deno task typecheck && deno task test\"\n },\n \"lock\": false,\n \"nodeModulesDir\": \"auto\"\n}\n",[153],"62b6399a-f511-424d-a3cb-d2cc8d8347f2","README.md","ec9dd180-6b3d-11f1-89a3-1607ee4eb77e",204,["D",1784058612287],7,"# Kylä UI\n\nA component library for building **consistently styled** web apps on Val Town.\nKylä is Finnish for \"village.\"\n\nMost Val Town apps are assembled fast and without a designer, so they end up\nlooking inconsistent. Kylä gives you opinionated, on-system components so your\napp looks coherent by default. Accessibility (semantic HTML, label association,\nvisible focus, AA contrast) is a quiet guarantee underneath.\n\nBuilt for Val Town's reality: **no build step**. Components are React, styled\nwith runtime [Twind](https://twind.style) + semantic CSS-variable tokens, and\nconsumed by import — no bundler, no codegen.\n\n## Quick start\n\n1. Your HTML shell must load Twind (it has to be present before first paint):\n\n ```html\n \n ```\n\n2. Wrap your app in `KylaProvider` (it injects the design tokens and owns\n light/dark mode), then use components:\n\n ```tsx\n /** @jsxImportSource https://esm.sh/react@18.2.0 */\n import {\n Button,\n KylaProvider,\n } from \"https://esm.town/v/nbbaier/kyla-ui/mod.ts\";\n\n export function App() {\n return (\n \n \n \n );\n }\n ```\n\nTo pin a version, append `?v=NNN` to the import URL; the unpinned URL always\ntracks the latest release (see\n[ADR-0004](docs/adr/0004-version-pinned-upgrade-contract.md)).\n\n## Status\n\nEarly. The styling foundation (`cn`, `tw`, `variants`, `KylaProvider`) and the\nfirst component (`Button`) are in place; the rest of the v1 component set and\nthe real design palette are still to come.\n\n## Components\n\n- `Button` — `variant`: `primary | subtle | ghost | danger`, `size`:\n `sm | md | lg`.\n\n## Project docs\n\n- [`CONTEXT.md`](CONTEXT.md) — the glossary / shared language.\n- [`docs/roadmap.md`](docs/roadmap.md) — the dependency-ordered plan to v1 +\n status.\n- [`docs/adr/`](docs/adr/) — architecture decision records.\n\nThe substrate (Radix + Twind + tokens + Provider on Val Town) is proven in a\nseparate spike val, `nbbaier/kyla-ui-spike`.\n",[160],"2a2918a9-7e7b-4b9e-a2fe-7d1c29ffdd5c","CONTEXT.md","bce56486-6b46-11f1-8898-1607ee4eb77e",174,["D",1784058609130],5,"# Kylä UI — Context\n\nA glossary of the core terms in this project. Implementation details live in\ncode and ADRs, not here.\n\n> \"Kylä\" is Finnish for \"village.\"\n\n## Glossary\n\n### Kylä UI\n\nThe component library itself: a Val Town val (`nbbaier/kyla-ui`) that exports\nReact components, a styling system, and any helpers needed to build consistently\nstyled web apps. It is **consumed by import**\n(`import { ... } from \"https://esm.town/v/nbbaier/kyla-ui/...\"`), not by\nremixing. This val is the source of truth for visual consistency across apps. It\n**also serves its own Gallery** (docs) at its HTTP route — the library documents\nitself, co-located with its source.\n\n### Starter\n\nA separate, remixable demo val (`kyla-ui-starter` or similar) that shows\nidiomatic _end-to-end_ use of Kylä UI: a tiny but genuine **todo app** with a\nreal HTTP route and `std/sqlite`, a working app shell, Provider + hydration\nwiring, and view-source link. A new app begins by remixing the Starter, then\nediting. The Starter **depends on** Kylä UI; the library never depends on the\nStarter. (Component reference/docs live in the library's Gallery, not the\nStarter.)\n\n### Gallery\n\nThe library's self-hosted documentation surface: an HTTP route on `kyla-ui` that\nrenders every component in its variants and Modes, with the Mode toggle. It is\nboth living docs and the in-browser proof that the stack renders correctly on\nVal Town (Twind + CSS-var tokens, Provider mode, Radix `Dialog` hydration). The\nseed of a fuller docs site later.\n\n### Release\n\nA blessed version of Kylä UI, produced by merging a development branch into\n`main`. `main` is the stable line: raw development never happens on it, so\nHEAD-of-`main` is always a Release. Each Release corresponds to a concrete Val\nTown version number (`?v=NNN`). A consumer tracks Releases by importing the\nunpinned URL (always latest Release) or freezes onto one by pinning its\n`?v=NNN`, which the README's release table maps by name.\n\n### Consumer\n\nA web app (a val) built with Kylä UI. Gets visual consistency by importing the\nlibrary rather than copying its code.\n\n### Semantic Token\n\nA named, intent-based design value (e.g. \"base surface,\" \"default foreground,\"\n\"line/border,\" \"danger\") rather than a raw value (e.g. \"blue-500\"). Components\nreference semantic tokens only; they never hard-code raw colors. Tokens are the\nunit of visual consistency and the surface through which a Theme is applied.\n(Modeled on Cloudflare Kumo's semantic-token system.)\n\nCanonical token vocabulary (CSS custom properties, all prefixed `--kyla-`):\n\n- **Surfaces** (hierarchy): `base` → `elevated` → `recessed`\n- **Foreground:** `fg`, `fg-muted`\n- **Borders:** `line`, `hairline`\n- **Accent:** `accent`, `accent-fg`, `accent-ring`, `accent-text`\n- **Status:** `danger`, `danger-fg`, `success`, `success-fg`\n- **Shape:** `radius`\n\nThe default theme's values conform to the Val Town UI style guide (see\n[ADR-0005](docs/adr/0005-val-town-visual-language-default-theme.md)); Kylä keeps\nits own richer surface hierarchy over VT's palette.\n\nOf these, the consumer-facing Override Surface for v1 is intentionally small\n(e.g. `--kyla-accent`, `--kyla-radius`, font); the rest are structural and stay\nfixed.\n\n### Theme\n\nA complete set of values bound to the Semantic Tokens, producing a coherent\nlook. A consumer switches the active theme without touching component code.\nLight/dark is one axis of theming; brand/variant overrides are another.\n\nFor v1, Kylä ships **one opinionated theme** with automatic light/dark, and\nexposes a deliberately small **Override Surface** — a few tokens (e.g. accent,\nradius, font) a consumer may redefine to express brand. Structural tokens\n(surface hierarchy, spacing, borders) stay fixed; that fixedness _is_ the\nconsistency. A fuller named-theme system (multiple consumer-defined Themes, à la\nKumo's theme configs) is a deliberate later step, not a v1 feature.\n\n### Variant\n\nA named, typed dimension of a component's appearance exposed as a prop (e.g.\n`variant=\"primary\"`, `size=\"sm\"`, `tone=\"danger\"`). Variants map to Semantic\nTokens internally; they are the consumer's primary, discoverable means of\nvarying a component while staying on-system. An escape-hatch `className` always\nmerges last, letting an app deviate locally without forking. For v1 the public\nsurface is finished components plus a `cn()` helper and the Provider — the\nunderlying Headless Primitives stay internal.\n\n### Mode\n\nThe light/dark axis of a Theme. Modeled as\n`data-mode=\"light\" | \"dark\" | \"system\"`, where `system` falls through to the OS\npreference via CSS `light-dark()` (zero JS). Mode is **owned by the Provider** —\nit sets `data-mode` and exposes a hook to read/set it (persistence opt-in) — so\napps get a first-class light/dark toggle without hand-rolling one (a common\nsource of inconsistency and flash-of-wrong-theme bugs).\n\n### Headless Primitive\n\nThe behavior-and-accessibility layer of an interactive component (focus\nmanagement, keyboard nav, ARIA), independent of its visual styling. For the hard\ninteractive components (Dialog, Popover, Menu, Tabs), Kylä builds on a\nthird-party headless primitive library rather than hand-rolling. Simple visual\ncomponents (Button, Card, Stack, Text, Input, Badge) have no separate Headless\nPrimitive — they are styled directly.\n",[168],"5151567d-5103-498d-8462-8b9bcfce293e","CLAUDE.md","a53286c6-775c-11f1-abf2-1607ee4eb77e",241,["D",1784059571651],"## Working on changes\n\nDevelopment happens on a Val Town **val branch**, never directly on `main`.\n`main` is the stable release line — HEAD-of-`main` is always a Release (a\nconcrete `?v=NNN`), so raw work never lands on it. Branch off `main`, do the\nwork on the branch, and land it by merging the branch into `main`, which cuts\nthe next Release. See\n[ADR-0004](docs/adr/0004-version-pinned-upgrade-contract.md) for the rationale\nand the consumer-facing pinning contract.\n\n**Exception: docs-only changes push straight to `main`.** Changes confined to\n`docs/**` (specs, ADRs, roadmap, reference docs) carry no code/version surface,\nso they don't need a branch + merge cycle — push them directly. Any change that\ntouches `src/`, `mod.ts`, or other shipped code still follows the branch flow\nabove.\n\n## Agent skills\n\n### Issue tracker\n\nIssues and specs live as local markdown files under\n`docs/issues//`; no external tracker. See\n`docs/agents/issue-tracker.md`.\n\n### Triage labels\n\nUses the default five-role label vocabulary unchanged (`needs-triage`,\n`needs-info`, `ready-for-agent`, `ready-for-human`, `wontfix`). See\n`docs/agents/triage-labels.md`.\n\n### Domain docs\n\nSingle-context layout: `CONTEXT.md` + `docs/adr/` at the repo root. 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Supports a `base` string, `variants` maps, optional\n * `defaultVariants`, and a trailing `className` escape hatch (merged last via cn()).\n *\n * Example:\n * const button = variants({\n * base: cn(tw.radius(\"md\"), \"px-4 py-2 font-medium\"),\n * variants: {\n * variant: { primary: cn(tw.bg(\"accent\"), tw.text(\"accent-fg\")), ... },\n * size: { sm: \"text-sm px-3 py-1.5\", md: \"text-base\" },\n * },\n * defaultVariants: { variant: \"primary\", size: \"md\" },\n * });\n * button({ variant: \"primary\", size: \"sm\", className });\n */\nexport function variants(config: {\n base?: string;\n variants?: V;\n defaultVariants?: Selection;\n}) {\n return (props: Selection & { className?: string } = {}): string => {\n const { className, ...selected } = props;\n const classes: string[] = [];\n if (config.base) classes.push(config.base);\n if (config.variants) {\n for (const key in config.variants) {\n const chosen = (selected as Selection)[key] ??\n config.defaultVariants?.[key];\n if (chosen != null) {\n const cls = config.variants[key][chosen as string];\n if (cls) classes.push(cls);\n }\n }\n }\n return cn(...classes, className);\n };\n}\n",[],[197,328,319],"utils","33c08f5a-4737-462a-a6c8-7f544fc943d7","cn.ts","91f4e2d6-6b52-11f1-a883-1607ee4eb77e",208,["D",1784058612720],2,"import { type ClassValue, clsx } from \"npm:clsx@2.1.1\";\nimport { twMerge } from \"npm:tailwind-merge@3.6.0\";\n\n/**\n * Merge class strings with conflict resolution.\n *\n * `clsx` flattens conditionals/arrays and drops falsy values; `twMerge` keeps only\n * the winning class when two conflict. This matters on Val Town: Twind injects CSS\n * rules in first-seen order, so source order — not className order — would otherwise\n * decide a tie. `cn()` resolves the conflict *in the class string itself*, so the\n * outcome is deterministic regardless of Twind's injection order. The\n * `[color:var(--…)]` hint our token utilities carry (ADR-0001) is also what lets\n * twMerge group and dedupe background/text/border *colors* independently of\n * size/width utilities — verified empirically on the Val Town runtime.\n *\n * Call order is the contract: a component passes its own classes FIRST and the\n * caller's escape-hatch `className` LAST — `cn(componentClasses, className)` — so\n * the caller reliably overrides. Versions are pinned so merge behavior is\n * reproducible (bare `npm:` specifiers resolve to \"latest\" and could shift).\n */\nexport function cn(...inputs: ClassValue[]): string {\n return twMerge(clsx(inputs));\n}\n",[],[197,328,330],"14b26de5-d175-4ba4-8abe-7f94001d8ac4",48,["D",1781814540380],[287,288],[197,328],"64934dee-ac54-472c-bda0-f552cf6b35c7","tw_test.ts","4190d9b6-7fc1-11f1-8791-1607ee4eb77e","56fb5e2e-6b54-11f1-95d4-1607ee4eb77e",259,["D",1784060340694],"import { assertEquals } from \"jsr:@std/assert@1\";\nimport { tw } from \"./tw.ts\";\n\nDeno.test(\"spacing accessors emit bare arbitrary-value classes\", () => {\n assertEquals(tw.space(\"4\"), \"p-[var(--kyla-space-4)]\");\n assertEquals(tw.space(\"p\", \"4\"), \"p-[var(--kyla-space-4)]\");\n assertEquals(tw.space(\"gap\", \"6\"), \"gap-[var(--kyla-space-6)]\");\n assertEquals(tw.space(\"space-x\", \"2\"), \"space-x-[var(--kyla-space-2)]\");\n});\n\nDeno.test(\"radius accessors emit derived bare arbitrary-value classes\", () => {\n assertEquals(tw.radius(\"sm\"), \"rounded-[var(--kyla-radius-sm)]\");\n assertEquals(tw.radius(\"md\"), \"rounded-[var(--kyla-radius-md)]\");\n assertEquals(tw.radius(\"lg\"), \"rounded-[var(--kyla-radius-lg)]\");\n assertEquals(tw.radius(), \"rounded-[var(--kyla-radius-md)]\");\n});\n\n// These calls intentionally verify that the accessor arguments are unions.\n// @ts-expect-error \"7\" is not one of the fixed spacing steps.\ntw.space(\"7\");\n// @ts-expect-error \"xl\" is not one of the graduated radius roles.\ntw.radius(\"xl\");\n",[],[197,352,344],"theme","d7ffb10b-dedb-463a-a303-4202fc516e8b","tw.ts","92125ad2-6b52-11f1-8a2f-1607ee4eb77e",257,["D",1784060340946],"/**\n * Token utilities — the only sanctioned way to apply semantic colors.\n *\n * Authors compose styles from these instead of hand-writing `[color:var(--…)]`,\n * which makes the silent \"forgot the color: hint\" failure (see ADR-0001 — a bare\n * `bg-[var(--…)]` is type-ambiguous and Twind emits nothing) structurally\n * impossible. The TypeScript union also makes a typo'd token a compile error.\n *\n * Each color builder takes an optional state prefix so prefixed utilities keep the\n * hint too — `tw.bg(\"recessed\", \"hover\")` → `hover:bg-[color:var(--kyla-recessed)]`.\n */\nexport type ColorToken =\n | \"base\"\n | \"elevated\"\n | \"recessed\"\n | \"fg\"\n | \"fg-muted\"\n | \"line\"\n | \"hairline\"\n | \"accent\"\n | \"accent-fg\"\n | \"accent-ring\"\n | \"accent-text\"\n | \"danger\"\n | \"danger-fg\"\n | \"success\"\n | \"success-fg\";\n\n/** Common interaction states a token utility may be scoped to. */\nexport type State = \"hover\" | \"focus\" | \"focus-visible\" | \"active\" | \"disabled\";\n\n/** Fixed spacing steps, each representing a multiple of the 4px base unit. */\nexport type SpaceToken =\n | \"0\"\n | \"1\"\n | \"2\"\n | \"3\"\n | \"4\"\n | \"5\"\n | \"6\"\n | \"8\"\n | \"10\"\n | \"12\"\n | \"16\"\n | \"20\"\n | \"24\";\n\n/** The graduated radius roles derived from `--kyla-radius`. */\nexport type RadiusToken = \"sm\" | \"md\" | \"lg\";\n\n/** Twind length utilities that can consume a spacing token. */\nexport type SpaceProperty =\n | \"p\"\n | \"px\"\n | \"py\"\n | \"pt\"\n | \"pr\"\n | \"pb\"\n | \"pl\"\n | \"m\"\n | \"mx\"\n | \"my\"\n | \"mt\"\n | \"mr\"\n | \"mb\"\n | \"ml\"\n | \"gap\"\n | \"gap-x\"\n | \"gap-y\"\n | \"space-x\"\n | \"space-y\";\n\nconst color = (prop: string, name: ColorToken, on?: State): string =>\n `${on ? `${on}:` : \"\"}${prop}-[color:var(--kyla-${name})]`;\n\nconst length = (prop: string, family: string, name: string): string =>\n `${prop}-[var(--kyla-${family}-${name})]`;\n\nfunction space(step: SpaceToken): string;\nfunction space(prop: SpaceProperty, step: SpaceToken): string;\nfunction space(\n propOrStep: SpaceProperty | SpaceToken,\n step?: SpaceToken,\n): string {\n const prop = step === undefined ? \"p\" : propOrStep as SpaceProperty;\n const token = step ?? propOrStep as SpaceToken;\n return length(prop, \"space\", token);\n}\n\n/**\n * Token class builders. Usage: `cn(tw.bg(\"elevated\"), tw.border(\"line\"), \"p-6\")`.\n * Color builders emit the required `color:` hint (optionally state-prefixed).\n * Length builders intentionally emit bare arbitrary-value classes: lengths\n * are unambiguous to Twind and do not need the color hint.\n */\nexport const tw = {\n bg: (t: ColorToken, on?: State) => color(\"bg\", t, on),\n text: (t: ColorToken, on?: State) => color(\"text\", t, on),\n border: (t: ColorToken, on?: State) => color(\"border\", t, on),\n ring: (t: ColorToken, on?: State) => color(\"ring\", t, on),\n ringOffset: (t: ColorToken, on?: State) => color(\"ring-offset\", t, on),\n /**\n * Fixed spacing token. With one argument it emits padding for the token;\n * pass a Twind spacing property first for other uses, e.g.\n * `tw.space(\"gap\", \"4\")`.\n */\n space,\n /** border-radius token (a length — no `color:` hint needed) */\n radius: (t: RadiusToken = \"md\") => length(\"rounded\", \"radius\", t),\n} as const;\n",[],[197,352,354],"e962f324-65f3-42fc-bd6a-56e12c5889b6","tokens_test.ts","e650bcd8-7b38-11f1-a19c-1607ee4eb77e",255,["D",1784060340904],"/**\n * The repo's first test harness — the load-bearing AA-contrast guarantee.\n *\n * It parses the token stylesheet, enumerates every *sanctioned* foreground /\n * surface pairing, and asserts each meets its WCAG AA threshold in **both** light\n * and dark mode. A future palette edit that breaks contrast fails here rather than\n * shipping. Kept a plain `deno test` so later scale slices reuse the pattern.\n */\nimport { assert, assertAlmostEquals, assertEquals } from \"jsr:@std/assert@1\";\nimport { contrastRatio } from \"./contrast.ts\";\nimport { tokenCSS } from \"./tokens.ts\";\n\ntype Mode = \"light\" | \"dark\";\ntype Palette = Record>;\n\n/** Parse `--kyla-NAME: light-dark(, );` declarations into a palette. */\nfunction parsePalette(css: string): Palette {\n const re =\n /--kyla-([\\w-]+):\\s*light-dark\$\\s*(#[0-9a-fA-F]{3,6})\\s*,\\s*(#[0-9a-fA-F]{3,6})\\s*\$/g;\n const palette: Palette = {};\n for (const [, name, light, dark] of css.matchAll(re)) {\n palette[name] = { light, dark };\n }\n return palette;\n}\n\nconst palette = parsePalette(tokenCSS);\nconst MODES: Mode[] = [\"light\", \"dark\"];\n\n// WCAG AA: 4.5:1 for body text. Every sanctioned pairing here is text-on-surface.\nconst AA_BODY = 4.5;\n\n/**\n * The sanctioned foreground/surface pairings (PRD §Palette): body text and\n * secondary text on every surface, and ink on each colored fill. Anything not\n * listed here is not a promised pairing and is intentionally not asserted.\n */\nconst SURFACES = [\"base\", \"elevated\", \"recessed\"] as const;\nconst PAIRINGS: Array<{ fg: string; bg: string; min: number }> = [\n ...SURFACES.map((bg) => ({ fg: \"fg\", bg, min: AA_BODY })),\n ...SURFACES.map((bg) => ({ fg: \"fg-muted\", bg, min: AA_BODY })),\n { fg: \"accent-fg\", bg: \"accent\", min: AA_BODY },\n { fg: \"danger-fg\", bg: \"danger\", min: AA_BODY },\n { fg: \"success-fg\", bg: \"success\", min: AA_BODY },\n];\n\nDeno.test(\"contrastRatio returns the correct WCAG ratio for known pairs\", () => {\n assertAlmostEquals(contrastRatio(\"#000000\", \"#ffffff\"), 21, 0.05);\n assertAlmostEquals(contrastRatio(\"#ffffff\", \"#ffffff\"), 1, 0.001);\n // #767676 on white is the canonical WCAG AA boundary example (~4.54:1).\n assertAlmostEquals(contrastRatio(\"#767676\", \"#ffffff\"), 4.54, 0.05);\n // Order-independent.\n assertAlmostEquals(\n contrastRatio(\"#052f4a\", \"#00bcff\"),\n contrastRatio(\"#00bcff\", \"#052f4a\"),\n 0.001,\n );\n});\n\nDeno.test(\"every sanctioned fg/surface pairing meets AA in both modes\", () => {\n for (const mode of MODES) {\n for (const { fg, bg, min } of PAIRINGS) {\n assert(palette[fg], `missing token --kyla-${fg}`);\n assert(palette[bg], `missing token --kyla-${bg}`);\n const ratio = contrastRatio(palette[fg][mode], palette[bg][mode]);\n assert(\n ratio >= min,\n `${fg} on ${bg} (${mode}) is ${ratio.toFixed(2)}:1, below AA ${min}:1`,\n );\n }\n }\n});\n\nDeno.test(\"palette expands the color vocabulary with the new semantic tokens\", () => {\n for (\n const name of [\n \"accent-ring\",\n \"accent-text\",\n \"danger-fg\",\n \"success\",\n \"success-fg\",\n ]\n ) {\n assert(palette[name], `expected --kyla-${name} in the token stylesheet`);\n }\n});\n\nDeno.test(\"dark-mode base uses the sanctioned slate-950 softening, not true black\", () => {\n assert(palette.base, \"missing --kyla-base\");\n assertEqualsHex(palette.base.dark, \"#020618\");\n assert(\n palette.base.dark.toLowerCase() !== \"#000000\",\n \"dark base must be softened slate-950, not true black\",\n );\n});\n\nfunction assertEqualsHex(actual: string, expected: string): void {\n assert(\n actual.toLowerCase() === expected.toLowerCase(),\n `expected ${expected}, got ${actual}`,\n );\n}\n\ntype LengthScale = Record;\n\nconst SPACE_STEPS = [\n \"0\",\n \"1\",\n \"2\",\n \"3\",\n \"4\",\n \"5\",\n \"6\",\n \"8\",\n \"10\",\n \"12\",\n \"16\",\n \"20\",\n \"24\",\n] as const;\n\nconst RADIUS_STEPS = [\"sm\", \"md\", \"lg\"] as const;\n\nfunction parsePixelScale(css: string, family: string): LengthScale {\n const scale: LengthScale = {};\n const re = new RegExp(\n `--kyla-${family}-([\\\\w-]+):\\\\s*([0-9]+)px\\\\s*;`,\n \"g\",\n );\n for (const [, name, value] of css.matchAll(re)) {\n scale[name] = Number(value);\n }\n return scale;\n}\n\nDeno.test(\"spacing scale is the fixed monotonic 4px-based step set\", () => {\n const spacing = parsePixelScale(tokenCSS, \"space\");\n assertEquals(Object.keys(spacing), [...SPACE_STEPS]);\n\n let previous = -1;\n for (const step of SPACE_STEPS) {\n const value = spacing[step];\n assert(value >= 0, `space-${step} must be non-negative`);\n assert(value >= previous, `space-${step} must be monotonic`);\n assertEquals(value, Number(step) * 4);\n previous = value;\n }\n});\n\nDeno.test(\"radius scale derives sm/md/lg from the overridable base\", () => {\n assert(\n /--kyla-radius:\\s*8px\\s*;/.test(tokenCSS),\n \"expected an 8px overridable base radius\",\n );\n\n assertEquals(RADIUS_STEPS.length, 3);\n\n const expectedDerivations: Record<(typeof RADIUS_STEPS)[number], string> = {\n sm: \"calc(var(--kyla-radius) * 0.5)\",\n md: \"var(--kyla-radius)\",\n lg: \"calc(var(--kyla-radius) * 1.5)\",\n };\n for (const step of RADIUS_STEPS) {\n assert(\n tokenCSS.includes(\n `--kyla-radius-${step}: ${expectedDerivations[step]};`,\n ),\n `radius-${step} must derive from --kyla-radius`,\n );\n }\n});\n",[],[197,352,362],"f631cc49-7401-4ace-a981-7d75e596a5d6","tokens.ts","920ac18c-6b52-11f1-a416-1607ee4eb77e",256,["D",1784060341035],"/**\n * The Kylä token stylesheet, as a string the Provider injects at runtime.\n *\n * Semantic design values as CSS custom properties (ADR-0001). `light-dark()`\n * resolves against the CSS `color-scheme` property, so toggling `color-scheme`\n * via `data-mode` flips every token at once — no `dark:` variants.\n *\n * Surface hierarchy (conventional): in light mode `elevated` is the *brightest*\n * (cards lift toward the light), `base` is the page, `recessed` is an inset well;\n * dark mode inverts brightness.\n *\n * Palette: the real Val Town values, ported (not invented) from the VT UI style\n * guide and AA-verified in both modes (ADR-0005; see\n * docs/reference/val-town-style-guide.md §6–§7). The AA guarantee is enforced by\n * tokens_test.ts — a pairing that regresses fails the suite. The one sanctioned\n * deviation from VT is the dark-mode `base`: `slate-950 #020618`, a deliberate\n * softening of VT's true-black `#000` to cut glare.\n *\n * Structural scales: spacing is fixed to the Val Town/Tailwind 4px base unit.\n * The radius scale is derived from the one consumer-overridable base so the\n * proportions remain intact when a consumer changes --kyla-radius.\n */\nexport const tokenCSS = `\n:root {\n color-scheme: light dark;\n\n /* surfaces — base (page) / elevated (cards) / recessed (wells) */\n --kyla-base: light-dark(#ffffff, #020618);\n --kyla-elevated: light-dark(#ffffff, #0f172b);\n --kyla-recessed: light-dark(#f1f5f9, #1d293d);\n\n /* foreground */\n --kyla-fg: light-dark(#000000, #ffffff);\n --kyla-fg-muted: light-dark(#4a5565, #d1d5dc);\n\n /* borders */\n --kyla-line: light-dark(#e2e8f0, #314158);\n --kyla-hairline: light-dark(#f1f5f9, #1d293d);\n\n /* accent */\n --kyla-accent: light-dark(#00bcff, #0069a8);\n --kyla-accent-fg: light-dark(#052f4a, #ffffff);\n --kyla-accent-ring: light-dark(#00a6f4, #00a6f4);\n --kyla-accent-text: light-dark(#00598a, #b8e6fe);\n\n /* status — danger / success */\n --kyla-danger: light-dark(#ffa1ad, #a50036);\n --kyla-danger-fg: light-dark(#4d0218, #ffffff);\n --kyla-success: light-dark(#00d492, #007a55);\n --kyla-success-fg: light-dark(#002c22, #ffffff);\n\n /*\n * Structural spacing — fixed 4px base, following the compact VT/Tailwind\n * steps used by the component style guide. These are not consumer overrides.\n */\n --kyla-space-0: 0px;\n --kyla-space-1: 4px;\n --kyla-space-2: 8px;\n --kyla-space-3: 12px;\n --kyla-space-4: 16px;\n --kyla-space-5: 20px;\n --kyla-space-6: 24px;\n --kyla-space-8: 32px;\n --kyla-space-10: 40px;\n --kyla-space-12: 48px;\n --kyla-space-16: 64px;\n --kyla-space-20: 80px;\n --kyla-space-24: 96px;\n\n /*\n * Shape — --kyla-radius is the one consumer-overridable base. The graduated\n * values are direct derivations, so changing the base preserves\n * the 4px / 8px / 12px proportions used by the VT style guide.\n */\n --kyla-radius: 8px;\n --kyla-radius-sm: calc(var(--kyla-radius) * 0.5);\n --kyla-radius-md: var(--kyla-radius);\n --kyla-radius-lg: calc(var(--kyla-radius) * 1.5);\n}\n\n/* data-mode overrides the OS preference by pinning color-scheme */\n[data-mode=\"light\"] { color-scheme: light; }\n[data-mode=\"dark\"] { color-scheme: dark; }\n[data-mode=\"system\"] { color-scheme: light dark; }\n\nhtml, body { margin: 0; }\n`;\n",[],[197,352,370],"cf4d662e-41d8-4717-8376-4b45710d239d","provider.tsx","92200010-6b52-11f1-80b8-1607ee4eb77e",214,["D",1784058613306],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport React, {\n createContext,\n useContext,\n useEffect,\n useState,\n} from \"https://esm.sh/react@18.2.0\";\nimport { tokenCSS } from \"./tokens.ts\";\n\n/**\n * The Kylä root. Guarantees the styling substrate is present and owns Mode.\n *\n * - Injects the token stylesheet into at runtime (idempotent). Twind itself\n * must live in the HTML shell since it has to load before first paint (ADR-0001);\n * only the tokens are Provider-injected.\n * - Owns Mode via `data-mode` on and exposes `useKylaMode()`. `system`\n * falls through to the OS preference via `light-dark()` (zero JS).\n */\nexport type Mode = \"light\" | \"dark\" | \"system\";\n\nconst ModeContext = createContext<{ mode: Mode; setMode: (m: Mode) => void }>({\n mode: \"system\",\n setMode: () => {},\n});\n\nexport function useKylaMode() {\n return useContext(ModeContext);\n}\n\nconst TOKENS_ID = \"kyla-tokens\";\n\nexport function KylaProvider({\n children,\n defaultMode = \"system\",\n}: {\n children: React.ReactNode;\n defaultMode?: Mode;\n}) {\n const [mode, setMode] = useState(defaultMode);\n\n // Inject the token stylesheet once. Idempotent: guards against double-inject.\n useEffect(() => {\n if (document.getElementById(TOKENS_ID)) return;\n const style = document.createElement(\"style\");\n style.id = TOKENS_ID;\n style.textContent = tokenCSS;\n document.head.appendChild(style);\n }, []);\n\n // Reflect Mode onto the document so `data-mode` selectors take effect.\n useEffect(() => {\n document.documentElement.setAttribute(\"data-mode\", mode);\n }, [mode]);\n\n return (\n \n {children}\n \n );\n}\n",[],[197,352,378],"8d4dc0bf-f133-42f5-9cde-dd3ce6ec7cf1","contrast.ts","e6508772-7b38-11f1-a19c-1607ee4eb77e",213,["D",1784058613115],"/**\n * Pure WCAG contrast utilities over resolved sRGB colors — no DOM, no browser.\n *\n * This is the natural seam for the palette's AA guarantee: \"AA holds\" is a\n * property of the resolved color values, computable without a browser. The token\n * stylesheet resolves each semantic token to a concrete hex per mode (via\n * `light-dark()`); these helpers turn those hexes into WCAG contrast ratios so a\n * test can assert every sanctioned foreground/surface pairing stays legible.\n */\n\n/** An sRGB color as integer channels in the range 0–255. */\nexport type RGB = [r: number, g: number, b: number];\n\n/** Parse a `#rgb` or `#rrggbb` hex string into sRGB channels (0–255). */\nexport function parseHex(hex: string): RGB {\n const h = hex.trim().replace(/^#/, \"\");\n const full = h.length === 3\n ? h\n .split(\"\")\n .map((c) => c + c)\n .join(\"\")\n : h;\n if (!/^[0-9a-fA-F]{6}$/.test(full)) {\n throw new Error(`Invalid hex color: ${hex}`);\n }\n return [\n parseInt(full.slice(0, 2), 16),\n parseInt(full.slice(2, 4), 16),\n parseInt(full.slice(4, 6), 16),\n ];\n}\n\n/** WCAG relative luminance of an sRGB color (0 = black, 1 = white). */\nexport function relativeLuminance([r, g, b]: RGB): number {\n const linear = (channel: number): number => {\n const s = channel / 255;\n return s <= 0.03928 ? s / 12.92 : ((s + 0.055) / 1.055) ** 2.4;\n };\n return 0.2126 * linear(r) + 0.7152 * linear(g) + 0.0722 * linear(b);\n}\n\n/**\n * WCAG contrast ratio between two colors (hex strings), in the range 1–21.\n * Order-independent: `contrastRatio(a, b) === contrastRatio(b, a)`.\n */\nexport function contrastRatio(a: string, b: string): number {\n const la = relativeLuminance(parseHex(a));\n const lb = relativeLuminance(parseHex(b));\n const lighter = Math.max(la, lb);\n const darker = Math.min(la, lb);\n return (lighter + 0.05) / (darker + 0.05);\n}\n",[],[197,352,386],"05fe2e2c-2444-41d7-938d-50483f27ebd6",50,["D",1781814540580],[280,281,282,283,284,285],[197,352],"9e305284-7117-4575-9e66-5f26454cd17a","button.tsx","8569cf08-6b53-11f1-a668-1607ee4eb77e","56eb3bb6-6b54-11f1-95d4-1607ee4eb77e",254,["D",1784060340811],"/** @jsxImportSource https://esm.sh/react@18.2.0 */\nimport React, { forwardRef } from \"https://esm.sh/react@18.2.0\";\nimport { cn } from \"../utils/cn.ts\";\nimport { tw } from \"../theme/tw.ts\";\nimport { variants } from \"../utils/variants.ts\";\n\n/**\n * Button — the first zero-dependency component, and the reference for how every\n * component is authored: typed variant props mapped to token classes via\n * `variants()`, a semantic `\n ))}\n \n \n );\n}\n\nfunction ButtonMatrix() {\n return (\n

\n {/* variants × sizes */}\n {VARIANTS.map((variant) => (\n

\n \n {variant}\n \n variant=\"{variant}\"\n

\n {SIZES.map((size) => (\n \n ))}\n \n

\n ))}\n

\n );\n}\n\nfunction TokenSwatches() {\n return (\n

\n {COLOR_TOKENS.map((token) => (\n \n \n

\n {token}\n

\n --kyla-{token}\n

\n ))}\n \n );\n}\n\nfunction WipBanner() {\n return (\n \n

\n 🚧 Preview / work in progress. This page renders the\n {\" \"}\n current{\" \"}\n Kylä UI surface — one component (Button) plus the theme system. Palette\n values are provisional and more components are on the way.\n

\n \n );\n}\n\nexport function Preview() {\n return (\n \n \n

\n {/* header */}\n

\n Kylä UI\n

\n Consistently styled components for Val Town apps. (Kylä ·\n Finnish for “village”.)\n

\n \n

\n\n \n\n \n \n \n\n \n

\n alert(\"Saved! (from Kylä Button)\")}\n >\n Save\n \n \n \n \n

\n \n\n \n \n \n\n \n

\n ✅ In place\n

Styling core — cn / tw / variants
KylaProvider + light / dark / system mode
Semantic design tokens
Button

\n 🔜 To come\n

The rest of the v1 component set
The real, AA-checked palette
Spacing / radius / type scales
Radix-backed components (e.g. Dialog)

\n \n\n \n Preview is illustrative — not a stable API.\n \n view source\n \n \n

\n \n \n );\n}\n",[],[204,428],["D",1783375727322],[273,274,275],[204],"89fc5dff-fd7e-423e-b636-3ff2f01027ae","roadmap.md","45b8411a-798a-11f1-b04a-1607ee4eb77e",245,["D",1784059587848],"# Kylä UI — Roadmap\n\nThe dependency-ordered plan for reaching v1. Each row links a spec in the\n[issue tracker](issues/); vocabulary is in [`../CONTEXT.md`](../CONTEXT.md) and\nthe load-bearing decisions are in [`adr/`](adr/). This doc is the synthesis —\nthe \"what next and in what order\" — not a re-spec of any single feature.\n\n## Built\n\n- **Styling foundation** — `cn`, `tw` (token utilities with the mandatory\n `color:` hint), `variants`, `KylaProvider` + Mode, provisional token\n stylesheet.\n- **`Button`** — the reference component (typed variants → tokens, semantic\n element, forwarded ref, escape-hatch `className`, token focus ring). \"Built\"\n means the pattern is proven, not that it's at VT coverage parity — see\n ADR-0005's coverage-parity clause and item 2 below.\n- **Substrate proof** — `nbbaier/kyla-ui-spike`, all four spikes green (Radix\n Dialog under the React-18.2.0 pin, Twind + CSS-var tokens, Provider injection,\n `light-dark()` + `data-mode`).\n\n## Planned — dependency order\n\nEach spec is `ready-for-agent`. Later rows assume earlier ones.\n\n| # | Feature | Spec | Depends on | Why it's here |\n| - | ------------------------------- | ----------------------------------------------------------------------- | ---------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| 1 | **Structural scales & palette** | [`structural-scales-palette`](issues/structural-scales-palette/spec.md) | — | Highest-leverage deferred item: fixed spacing/radius/type scales + real AA-checked palette, **conforming to the Val Town UI style guide** ([ADR-0005](adr/0005-val-town-visual-language-default-theme.md)). Where consistency actually lives; unblocks the set. Establishes the first test harness. |\n| 2 | **v1 zero-dep component set** | [`v1-component-set`](issues/v1-component-set/spec.md) | 1 | Text/Heading, Card, Input, Textarea, Label, Badge, Stack, Box, Divider, Select — the rest of the importable core, following the `Button` pattern — plus a `Button` revision slice closing its VT variant/state coverage gap (ADR-0005). |\n| 3 | **Dialog (Radix-backed)** | [`dialog-radix`](issues/dialog-radix/spec.md) | 2 | First headless-backed component, behind its own import path, out of the barrel. Exercises the hybrid split (ADR-0002) in real code. |\n| — | **Preview shell conventions** | [`gallery`](issues/gallery/spec.md) (folded in) | — | Bring the `preview/` HTML shell in line with platform conventions (real `.html` file, no inline `

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