# Felhom design system v2 **Status:** canonical reference. Shipped in the controller UI with **TASK-D0** (controller v0.96.0, 2026-07-02); D1–D4 (settings IA split, Tárhely nav promotion, website, hub) build from this document. The system was approved via two mockup rounds. Four pillars: 1. **Logo-derived navy palette** — a single blue accent on layered navy, replacing the GitHub-dark clone. 2. **Exception-based status color** — nominal state is blue/neutral; amber/red appear **only on deviation**. 3. **Vendored assets** — fonts and icons ship inside the binary; no CDN dependency (offline customer nodes). 4. **Flat metadata** — no pills, no shadows, no bubbles; one 2px radius everywhere. ## The rule set - **One radius: 2px** (`--radius`). The only exceptions are true circles (state dots, spinners) at 50%. - **No shadows.** No `box-shadow` anywhere. Depth comes from background layering (`--bg-0/1/2`) and hairlines (`--line`, `--line-soft`). - **Boxless sections.** Section headers are an h3 + muted hint over a 1px hairline (`.section-h`), not a card. Panels (`.panel`) exist for genuinely grouped content, flat: bg-1 + 1px line. - **Color = exception.** Anything operating normally is blue or neutral. Green does not exist in the system. Amber (`--warn`) and red (`--crit`) are reserved for deviations that need attention. Categorical **data series** (charts) are exempt — they may use distinct hues; *status* may not. ## Tokens (canonical, verbatim) ```css :root { --bg-0: #0A1220; --bg-1: #0F1B2E; --bg-2: #16263F; --line: #22344F; --line-soft: #1A2A42; --text-1: #EDF2F9; --text-2: #94A6BF; --text-3: #5E7392; --blue: #0083D8; --blue-bright: #2EA8F5; --blue-dim: rgba(0,131,216,.13); --warn: #E0A93E; --warn-dim: rgba(224,169,62,.12); --crit: #E5534B; --crit-dim: rgba(229,83,75,.12); --radius: 2px; --font-ui: 'Plus Jakarta Sans', -apple-system, sans-serif; --font-data: 'JetBrains Mono', monospace; } ``` Semantics: `--bg-0` page, `--bg-1` panel, `--bg-2` elevated/nested surface (buttons, inputs, table stripes). `--text-1` primary, `--text-2` secondary, `--text-3` muted/labels. `--line` visible hairline, `--line-soft` row separators and meter tracks. `--blue` fills and primary actions, `--blue-bright` text-on-dark accent and hover, `--blue-dim` selection/hover washes. ## Typography - **UI face:** Plus Jakarta Sans (weights 400–800). **Data face:** JetBrains Mono (400–500) for every numeric/technical value: sizes, times, percentages, paths, IDs, versions. - Both are **vendored variable woff2 files** embedded in the binary and served from `/static/fonts/` (immutable cache). **latin-ext is mandatory** — Hungarian ő/ű break without it. `unicode-range` is preserved from the upstream subsets so latin-ext only loads when needed. - No CDN font loading anywhere. `fonts.googleapis.com` is a banned string in the codebase. ## Iconography - **Vendored Lucide sprite** (`templates/icons.html`, 30 icons as ``), included once at the top of ``. Stroke = `currentColor`, stroke-width 2, round caps. - Usage convention everywhere: `` (`.ico` 16px, `.ico-sm` 14px, `.ico-spin` for progress). - **Emoji are banned** in templates and JS-built strings (✅❌⚠🔒⏳… — see the D0 grep gate list). - Standalone pages that don't include the layout (catchall, setup wizard) get inline SVGs or plain text, not the sprite. ## Components ### Meter (`.meter` + `.meter-track` / `.meter-fill`) The capacity readout — replaces every zone-colored bar. A 3px hairline track (`--line-soft`) with a fill; **the fill is blue in nominal state**. Two 1px *neutral* ticks are baked into the track at 70% and 85% (`.meter-track::before/::after`; `.no-ticks` disables). The wrapper carries the state class from `usageColor`: `nominal` (blue), `warn` (amber fill), `crit` (red fill). Under warn/crit a `.meter-flag` renders (dim background chip + triangle-alert icon) with the exact copy: warn → **„Fogyóban a hely"**, crit → **„Kritikusan kevés hely"** (storage meters). Disconnected/unknown: `.meter-empty` — empty track, value `—`, no color, no flag. Deploy-page variant `.meter-track-stacked`: two segments — committed = solid `--blue`, planned/new = `--blue` at 35% opacity. ### Tag (`.tag`) The state chip — replaces pills. Inline-flex, **2px radius**, 1px border, 6px round dot. Modifiers: `tag-run` (blue border/text/dot), `tag-progress` (blue + pulsing dot; `prefers-reduced-motion` respected), `tag-warn` (amber + dim bg), `tag-crit` (red + dim bg), `tag-neutral`/`tag-off` (gray, hollow dot). Protected/locked content uses a neutral tag with the `i-lock` icon. ### Metadata row (`.metarow` / `.metarows`) Informational chips ("~512M", "Pi kompatibilis", "HDD szükséges") become icon + text with **no container**: 14px muted-stroke icon, `--text-2` text, mono for values. ### Panel / List (`.panel`, `.list .row`, `.stack-list`) Panel: `--bg-1`, 1px `--line`, 2px radius, no shadow. List: one panel whose rows are separated by `border-top: 1px solid var(--line-soft)`; each row has a 2px left state edge via `::before` — blue for run/progress, amber for warn, transparent for neutral/off. ### Section header (`.section-h`) h3 + right-aligned muted hint over `border-bottom: 1px solid var(--line)`. No box. ### Stats (`.stats-grid` / `.stat-card`) Boxless figures with 1px right hairline dividers; numbers in `--font-data` at 1.9rem. A zero "Leállítva" renders `--text-3` (`.stat-zero`); a nonzero stopped count renders `--warn` (`.stat-warn`) — the exception rule applied to numbers. ### Buttons 2px radius. Default: `--bg-2` + `--line` border, hover border `--blue`. `.btn-primary`: solid blue. `.btn-danger`: **transparent background, `--crit` border + text** — danger is outline until the confirm step (filled red only inside confirmation modals). `:focus-visible` = 2px `--blue-bright` outline on all interactive elements. ## State truth tables (funcmap, controller `internal/web/funcmap.go`) `stateColor(ContainerState)` → class suffix (consumed as `tag-*`, `stack-state-*`, `state-text-*`): | ContainerState | token | rendering | |---|---|---| | running | `run` | blue tag + blue row edge — nominal | | starting, deploying | `progress` | blue tag, pulsing dot, blue edge | | unhealthy | `warn` | amber tag + amber edge | | restarting | `warn` | amber (a restart loop is a problem, not progress) | | stopped, exited | `neutral` | gray tag, hollow dot, **no** colored edge | | paused | `neutral` | gray | | not_deployed, unknown | `off` | gray tag, no row edge | > Deliberate semantic change (operator-approved): **stopped/exited is neutral, not red.** A > customer-stopped app is not an emergency; genuine failures surface via unhealthy state + alerts. `usageColor(percent)`: `<70 → nominal`, `70–85 → warn`, `≥85 → crit`. `tempColor(celsius)`: `>75 → crit`, `≥60 → warn`, else `nominal` (thresholds unchanged from v1). Hungarian `stateLabel` copy is frozen (guarded byte-identical by unit test). Text color classes: `.state-text-{run,progress,warn,crit,neutral,off,nominal}` — `nominal` = `--text-1` (no color), `run`/`progress` = `--blue-bright`, `neutral`/`off` = `--text-3`. ## Chart palette (Chart.js, monitoring) Categorical series (data, not status): cpu `#2EA8F5`, memory `#8E7CE8`, temp `#E0A93E`, load `#5EC4B6`. Chrome: tooltip bg `#0F1B2E`, title `#EDF2F9`, body `#94A6BF`, border `#22344F`, ticks `#94A6BF`, axis titles `#5E7392`, grid `rgba(34,52,79,.5)`. ## `.tag` vs `.badge` (D3 addendum — resolves the D1 parallel-component drift) Both exist in the controller; they are distinct components, not variants: - **`.tag`** — outline + dot; expresses **state** (run/progress/warn/crit/neutral/off). Use it whenever the thing shown can change at runtime: container state, drive activity, health. The dot is part of the semantics (pulsing = in progress, hollow = inert). - **`.badge`** — filled chip (dim background, no dot); expresses a **static informational label**: tier names, protocol/type markers (USB, NFS), feature keywords on catalog cards. Nothing about it changes at runtime. - If the label has an icon-and-text metadata character ("~512M", "Pi kompatibilis"), prefer **`.metarow`** (no container at all) over either chip. - On the website, catalog feature keywords are `.badge`-class chips (filled, 2px, blue-dim) — informational labels, not states. ## Website (TASK-D3) The seven felhom.eu pages share ONE stylesheet (`website/assets/site.css?v=N`) built on this document's tokens: self-hosted fonts (`/assets/fonts/`, no CDN — GDPR), a 70-symbol external Lucide sprite (`/assets/icons.svg?v=N#i-name`; feature tiles = `.ico-tile` 48px bg-2 squares), the two-tone heading as the brand signature (accent span = solid `--blue-bright`), and mask-based ✓/✗ marks for CSS-generated content (sprites can't reach `::before`). Marketing-only scale addition: hero H1 up to ~3.5rem/800. Assets are cache-busted with `?v=N` (nginx `expires 7d`) — bump every reference together. Enforcement: `scripts/site_gates.py` (BOM, emoji=0, nav/footer consistency, analytics presence, no-CDN, banned tokens, zero `