c8be9d7414
- Add Prometheus metrics for marketplace API throughput and error rates with new dashboard panels - Implement confidential transaction models with encryption support and access control - Add key management system with registration, rotation, and audit logging - Create services and registry routers for service discovery and management - Integrate ZK proof generation for privacy-preserving receipts - Add metrics instru
469 lines
15 KiB
Markdown
469 lines
15 KiB
Markdown
# Layout & Frontend Guidelines (Windsurf)
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Target: **mobile‑first**, dark theme, max content width **960px** on desktop. Reference device: **Nothing Phone 2a**.
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---
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## 1) Design System
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### 1.1 Color (Dark Theme)
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- `--bg-0: #0b0f14` (page background)
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- `--bg-1: #11161c` (cards/sections)
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- `--tx-0: #e6edf3` (primary text)
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- `--tx-1: #a7b3be` (muted)
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- `--pri: #ff7a1a` (accent orange)
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- `--ice: #b9ecff` (ice accent)
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- `--ok: #3ddc97`
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- `--warn: #ffcc00`
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- `--err: #ff4d4d`
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### 1.2 Typography
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- Base font-size: **16px** (mobile), scale up at desktop.
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- Font stack: System UI (`-apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif`).
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- Line-height: 1.5 body, 1.2 headings.
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### 1.3 Spacing (8‑pt grid)
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- `--s-1: 4px`, `--s-2: 8px`, `--s-3: 12px`, `--s-4: 16px`, `--s-5: 24px`, `--s-6: 32px`, `--s-7: 48px`, `--s-8: 64px`.
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### 1.4 Radius & Shadow
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- Radius: `--r-1: 8px`, `--r-2: 16px`.
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- Shadow (subtle): `0 4px 20px rgba(0,0,0,.25)`.
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---
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## 2) Grid & Layout
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### 2.1 Container
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- **Mobile‑first**: full‑bleed padding.
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- Desktop container: **max‑width: 960px**, centered.
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- Side gutters: 16px (mobile), 24px (tablet), 32px (desktop).
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**Breakpoint summary**
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| Token | Min width | Container behaviour | Notes |
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| --- | --- | --- | --- |
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| `--bp-sm` | 360px | Fluid | Single-column layouts prioritise readability.
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| `--bp-md` | 480px | Fluid | Allow two-up cards or media/text pairings when needed.
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| `--bp-lg` | 768px | Max-width 90% (capped at 960px) | Stage tablet/landscape experiences before full desktop.
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| `--bp-xl` | 960px | Fixed 960px max width | Full desktop grid, persistent side rails allowed.
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Always respect `env(safe-area-inset-*)` for notch devices (use helpers like `.safe-b`).
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### 2.2 Columns
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- 12‑column grid on screens ≥ **960px**.
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- Column gutter: 16px (mobile), 24px (≥960px).
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- Utility classes (examples):
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- `.row { display:grid; grid-template-columns: repeat(12, 1fr); gap: var(--gutter); }`
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- `.col-12, .col-6, .col-4, .col-3` for common spans on desktop.
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- Mobile stacks by default; use responsive helpers at breakpoints.
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### 2.3 Breakpoints (Nothing Phone 2a aware)
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- `--bp-sm: 360px` (small phones)
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- `--bp-md: 480px` (Nothing 2a width in portrait ~ 412–480 CSS px)
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- `--bp-lg: 768px` (tablets / landscape phones)
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- `--bp-xl: 960px` (desktop container)
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**Mobile layout rules:**
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- Navigation collapses to icon buttons with overflow menu at `--bp-sm`.
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- Multi-column sections stack; keep vertical rhythm using `var(--s-6)`.
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- Sticky headers take 56px height; ensure content uses `.safe-b` for bottom insets.
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**Desktop enhancements:**
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- Activate `.row` grid with `.col-*` spans at `--bp-xl`.
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- Introduce side rail for filters or secondary nav (span 3 or 4 columns).
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- Increase typographic scale by 1 step (`clamp` already handles this).
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> **Rule:** Build for < `--bp-lg` first; enhance progressively at `--bp-lg` and `--bp-xl`.
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---
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## 3) Page Chrome
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### 3.1 Header
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- Sticky top, height 56–64px.
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- Left: brand; Right: primary action or menu.
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- Translucent on scroll (backdrop‑filter), solid at top.
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### 3.2 Footer
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- Thin bar; meta links. Uses ice accent for separators.
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### 3.3 Main
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- Vertical rhythm: sections spaced by `var(--s-7)` (mobile) / `var(--s-8)` (desktop).
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- Cards: background `var(--bg-1)`, radius `var(--r-2)`, padding `var(--s-6)`.
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---
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## 4) CSS File Strategy (per page)
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**Every HTML page ships its own CSS file**, plus shared layers:
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- `/css/base.css` — resets, variables, typography, utility helpers.
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- `/css/components.css` — buttons, inputs, cards, modals, toast.
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- `/css/layout.css` — grid/container/header/footer.
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- `/css/pages/<page>.css` — page‑specific rules (one per HTML page).
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**Naming** (BEM‑ish): `block__elem--mod`. Avoid nesting >2 levels.
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**Example includes:**
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```html
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<link rel="stylesheet" href="/css/base.css">
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<link rel="stylesheet" href="/css/components.css">
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<link rel="stylesheet" href="/css/layout.css">
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<link rel="stylesheet" href="/css/pages/dashboard.css">
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```
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---
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## 5) Utilities (recommended)
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- Spacing: `.mt-4`, `.mb-6`, `.px-4`, `.py-6` (map to spacing scale).
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- Flex/Grid: `.flex`, `.grid`, `.ai-c`, `.jc-b`.
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- Display: `.hide-sm`, `.hide-lg` using media queries.
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---
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## 6) Toast Messages (center bottom)
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**Position:** centered at bottom above safe‑area insets.
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**Behavior:**
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- Appear for 3–5s; pause on hover; dismiss on click.
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- Max width 90% on mobile, 420px desktop.
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- Elevation + subtle slide/fade.
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**Structure:**
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```html
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<div id="toast-root" aria-live="polite" aria-atomic="true"></div>
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```
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**Styles (concept):**
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```css
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#toast-root { position: fixed; left: 50%; bottom: max(16px, env(safe-area-inset-bottom)); transform: translateX(-50%); z-index: 9999; }
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.toast { background: var(--bg-1); color: var(--tx-0); border: 1px solid rgba(185,236,255,.2); padding: var(--s-5) var(--s-6); border-radius: var(--r-2); box-shadow: 0 10px 30px rgba(0,0,0,.35); margin-bottom: var(--s-4); max-width: min(420px, 90vw); }
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.toast--ok { border-color: rgba(61,220,151,.35); }
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.toast--warn { border-color: rgba(255,204,0,.35); }
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.toast--err { border-color: rgba(255,77,77,.35); }
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```
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**JS API (minimal):**
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```js
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function showToast(msg, type = "ok", ms = 3500) {
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const root = document.getElementById("toast-root");
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const el = document.createElement("div");
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el.className = `toast toast--${type}`;
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el.role = "status";
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el.textContent = msg;
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root.appendChild(el);
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const t = setTimeout(() => el.remove(), ms);
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el.addEventListener("mouseenter", () => clearTimeout(t));
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el.addEventListener("click", () => el.remove());
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}
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```
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---
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## 7) Browser Notifications (system tray)
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**When to use:** Only for important, user‑initiated events (e.g., a new match, message, or scheduled session start). Always provide an in‑app alternative (toast/modal) for users who deny permission.
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**Permission flow:**
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```js
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async function ensureNotifyPermission() {
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if (!("Notification" in window)) return false;
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if (Notification.permission === "granted") return true;
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if (Notification.permission === "denied") return false;
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const res = await Notification.requestPermission();
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return res === "granted";
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}
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```
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**Send notification:**
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```js
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function notify(opts) {
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if (Notification.permission !== "granted") return;
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const n = new Notification(opts.title || "Update", {
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body: opts.body || "",
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icon: opts.icon || "/icons/notify.png",
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tag: opts.tag || "app-event",
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requireInteraction: !!opts.sticky
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});
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if (opts.onclick) n.addEventListener("click", opts.onclick);
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}
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```
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**Pattern:**
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```js
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const ok = await ensureNotifyPermission();
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if (ok) notify({ title: "Match window opens soon", body: "Starts in 10 min" });
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else showToast("Enable notifications in settings to get alerts", "warn");
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```
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---
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## 8) Forms & Inputs
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- Hit target ≥ 44×44px, labels always visible.
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- Focus ring: `outline: 2px solid var(--ice)`.
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- Validation: inline text in `--warn/--err`; never only color.
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---
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## 9) Performance
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- CSS: ship **only** what a page uses (per‑page CSS). Avoid giant bundles.
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- Images: `loading="lazy"`, responsive sizes; WebP/AVIF first.
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- Fonts: use system fonts; if custom, `font-display: swap`.
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---
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## 10) Accessibility
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- Ensure color contrast ratios meet WCAG AA standards (e.g., 4.5:1 for text and 3:1 for large text).
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- Use semantic HTML elements (<header>, <nav>, <main>, etc.) and ARIA attributes for dynamic content.
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- Support keyboard navigation with logical tab order and visible focus indicators.
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- Test for screen readers, providing text alternatives for images and ensuring forms are labeled correctly.
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- Adapt layouts for assistive technologies using media queries and flexible components.
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## 11) Accessibility Integration
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- Apply utility classes for focus states (e.g., :focus-visible with visible outline).
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- Use ARIA roles for custom widgets and ensure all content is perceivable, operable, understandable, and robust.
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## 12) Breakpoint Examples
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```css
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/* Mobile-first defaults here */
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@media (min-width: 768px) { /* tablets / landscape phones */ }
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@media (min-width: 960px) { /* desktop grid & container */ }
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```
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---
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## 13) Checklist (per page)
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- [ ] Uses `/css/pages/<page>.css` + shared layers
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- [ ] Container max‑width 960px, centered; gutters follow breakpoint summary
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- [ ] Mobile‑first; tests on Nothing Phone 2a
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- [ ] Toasts render center‑bottom
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- [ ] Notifications gated by permission & mirrored with toasts
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- [ ] A11y pass (headings order, labels, focus, contrast)
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---
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## Appendix A — `/css/base.css`
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```css
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/* Base: variables, reset, typography, utilities */
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:root{
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--bg-0:#0b0f14; --bg-1:#11161c;
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--tx-0:#e6edf3; --tx-1:#a7b3be;
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--pri:#ff7a1a; --ice:#b9ecff;
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--ok:#3ddc97; --warn:#ffcc00; --err:#ff4d4d;
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--s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px;
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--s-5:24px; --s-6:32px; --s-7:48px; --s-8:64px;
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--r-1:8px; --r-2:16px;
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--gutter:16px;
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}
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@media (min-width:960px){ :root{ --gutter:24px; } }
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/* Reset */
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*{ box-sizing:border-box; }
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html,body{ height:100%; }
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html{ color-scheme:dark; }
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body{
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margin:0; background:var(--bg-0); color:var(--tx-0);
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font:16px/1.5 -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
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-webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
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}
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img,svg,video{ max-width:100%; height:auto; display:block; }
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button,input,select,textarea{ font:inherit; color:inherit; }
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:focus-visible{ outline:2px solid var(--ice); outline-offset:2px; }
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/* Typography */
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h1{ font-size:clamp(24px, 3.5vw, 36px); line-height:1.2; margin:0 0 var(--s-4); }
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h2{ font-size:clamp(20px, 3vw, 28px); line-height:1.25; margin:0 0 var(--s-3); }
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h3{ font-size:clamp(18px, 2.5vw, 22px); line-height:1.3; margin:0 0 var(--s-2); }
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p{ margin:0 0 var(--s-4); color:var(--tx-1); }
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/* Links */
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a{ color:var(--ice); text-decoration:none; }
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a:hover{ text-decoration:underline; }
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/* Utilities */
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.container{ width:100%; max-width:960px; margin:0 auto; padding:0 var(--gutter); }
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.flex{ display:flex; } .grid{ display:grid; }
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.ai-c{ align-items:center; } .jc-b{ justify-content:space-between; }
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.mt-4{ margin-top:var(--s-4);} .mb-6{ margin-bottom:var(--s-6);} .px-4{ padding-left:var(--s-4); padding-right:var(--s-4);} .py-6{ padding-top:var(--s-6); padding-bottom:var(--s-6);}
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.hide-sm{ display:none; }
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@media (min-width:960px){ .hide-lg{ display:none; } .hide-sm{ display:initial; } }
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/* Safe area helpers */
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.safe-b{ padding-bottom:max(var(--s-4), env(safe-area-inset-bottom)); }
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```
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---
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## Appendix B — `/css/layout.css`
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```css
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/* Grid, header, footer, sections */
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.row{ display:grid; grid-template-columns:repeat(12, 1fr); gap:var(--gutter); }
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/* Mobile-first: stack columns */
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[class^="col-"]{ grid-column:1/-1; }
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@media (min-width:960px){
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.col-12{ grid-column:span 12; }
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.col-6{ grid-column:span 6; }
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.col-4{ grid-column:span 4; }
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.col-3{ grid-column:span 3; }
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}
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header.site{
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position:sticky; top:0; z-index:50;
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backdrop-filter:saturate(1.2) blur(8px);
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background:color-mix(in oklab, var(--bg-0) 85%, transparent);
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border-bottom:1px solid rgba(185,236,255,.12);
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}
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header.site .inner{ height:64px; }
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footer.site{
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margin-top:var(--s-8);
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border-top:1px solid rgba(185,236,255,.12);
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background:var(--bg-0);
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}
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footer.site .inner{ height:56px; font-size:14px; color:var(--tx-1); }
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main section{ margin: var(--s-7) 0; }
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.card{
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background:var(--bg-1);
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border:1px solid rgba(185,236,255,.12);
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border-radius:var(--r-2);
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padding:var(--s-6);
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box-shadow:0 4px 20px rgba(0,0,0,.25);
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}
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```
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---
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## Appendix C — `/css/components.css`
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```css
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/* Buttons */
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.btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px;
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border-radius:var(--r-1); padding:10px 16px; border:1px solid transparent; cursor:pointer;
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background:var(--pri); color:#111; font-weight:600; text-align:center; }
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.btn:hover{ filter:brightness(1.05); }
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.btn--subtle{ background:transparent; color:var(--tx-0); border-color:rgba(185,236,255,.2); }
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.btn--ghost{ background:transparent; color:var(--pri); border-color:transparent; }
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.btn:disabled{ opacity:.6; cursor:not-allowed; }
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/* Inputs */
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.input{ width:100%; background:#0e1319; color:var(--tx-0);
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border:1px solid rgba(185,236,255,.18); border-radius:var(--r-1);
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padding:12px 14px; }
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.input::placeholder{ color:#6f7b86; }
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/* Badges */
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.badge{ display:inline-block; padding:2px 8px; border-radius:999px; font-size:12px; border:1px solid rgba(185,236,255,.2); }
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.badge--ok{ color:#0c2; border-color:rgba(61,220,151,.4); }
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.badge--warn{ color:#fc0; border-color:rgba(255,204,0,.4); }
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.badge--err{ color:#f66; border-color:rgba(255,77,77,.4); }
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/* Toasts */
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#toast-root{ position:fixed; left:50%; bottom:max(16px, env(safe-area-inset-bottom)); transform:translateX(-50%); z-index:9999; }
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.toast{ background:var(--bg-1); color:var(--tx-0);
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border:1px solid rgba(185,236,255,.2); padding:var(--s-5) var(--s-6);
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border-radius:var(--r-2); box-shadow:0 10px 30px rgba(0,0,0,.35);
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margin-bottom:var(--s-4); max-width:min(420px, 90vw);
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opacity:0; translate:0 8px; animation:toast-in .24s ease-out forwards; }
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.toast--ok{ border-color:rgba(61,220,151,.35); }
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.toast--warn{ border-color:rgba(255,204,0,.35); }
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.toast--err{ border-color:rgba(255,77,77,.35); }
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@keyframes toast-in{ to{ opacity:1; translate:0 0; } }
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```
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---
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## Appendix D — `/js/toast.js`
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```js
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export function showToast(msg, type = "ok", ms = 3500) {
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const root = document.getElementById("toast-root") || (() => {
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const r = document.createElement("div");
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r.id = "toast-root";
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document.body.appendChild(r);
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return r;
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})();
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const el = document.createElement("div");
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el.className = `toast toast--${type}`;
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el.role = "status";
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el.textContent = msg;
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root.appendChild(el);
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const t = setTimeout(() => el.remove(), ms);
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el.addEventListener("mouseenter", () => clearTimeout(t));
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el.addEventListener("click", () => el.remove());
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}
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```
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---
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## Appendix E — `/js/notify.js`
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```js
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export async function ensureNotifyPermission() {
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if (!("Notification" in window)) return false;
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if (Notification.permission === "granted") return true;
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if (Notification.permission === "denied") return false;
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const res = await Notification.requestPermission();
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return res === "granted";
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}
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export function notify(opts) {
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if (Notification.permission !== "granted") return;
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const n = new Notification(opts.title || "Update", {
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body: opts.body || "",
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icon: opts.icon || "/icons/notify.png",
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tag: opts.tag || "app-event",
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requireInteraction: !!opts.sticky
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});
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if (opts.onclick) n.addEventListener("click", opts.onclick);
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}
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```
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---
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## Appendix F — `/css/pages/dashboard.css`
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```css
|
||
/* Dashboard specific styles */
|
||
.dashboard-header{
|
||
margin-bottom:var(--s-6);
|
||
display:flex; align-items:center; justify-content:space-between;
|
||
}
|
||
.dashboard-header h1{ font-size:28px; color:var(--pri); }
|
||
|
||
.stats-grid{
|
||
display:grid;
|
||
gap:var(--s-5);
|
||
grid-template-columns:repeat(auto-fit, minmax(160px, 1fr));
|
||
}
|
||
.stat-card{
|
||
background:var(--bg-1);
|
||
border:1px solid rgba(185,236,255,.12);
|
||
border-radius:var(--r-2);
|
||
padding:var(--s-5);
|
||
text-align:center;
|
||
}
|
||
.stat-card h2{ margin:0; font-size:20px; color:var(--ice); }
|
||
.stat-card p{ margin:var(--s-2) 0 0; color:var(--tx-1); font-size:14px; }
|
||
|
||
.activity-feed{
|
||
margin-top:var(--s-7);
|
||
}
|
||
.activity-item{
|
||
border-bottom:1px solid rgba(185,236,255,.1);
|
||
padding:var(--s-4) 0;
|
||
display:flex; align-items:center; gap:var(--s-4);
|
||
}
|
||
.activity-item:last-child{ border-bottom:none; }
|
||
.activity-icon{ width:32px; height:32px; border-radius:50%; background:var(--pri); display:flex; align-items:center; justify-content:center; color:#111; font-size:16px; }
|
||
.activity-text{ flex:1; font-size:14px; color:var(--tx-0); }
|
||
.activity-time{ font-size:12px; color:var(--tx-1); }
|