# Frontend Development Standards

## CSS Styling Standards

### Use CSS Variables for ALL Colors

**NEVER hardcode colors in component styles.** Always use CSS variables defined in `src/assets/style.css`.

Available variables:
```css
--primary       /* Primary brand color */
--primary-dark  /* Darker primary for hover states */
--secondary     /* Secondary/muted color */
--success       /* Success states (green) */
--warning       /* Warning states (orange) */
--danger        /* Error/danger states (red) */
--bg            /* Page background */
--bg-card       /* Card/panel background */
--text          /* Primary text color */
--text-light    /* Secondary/muted text */
--border        /* Border color */
--link          /* Link color (bright blue in dark mode) */
```

**Bad:**
```css
.my-card {
  background: white;
  color: #1a1a1a;
}
```

**Good:**
```css
.my-card {
  background: var(--bg-card);
  color: var(--text);
}
```

### Detail Pages - Use Global Styles

All detail pages (MachineDetail, PCDetail, PrinterDetail, ApplicationDetail) should use the **unified global styles** from `style.css`:

- `.detail-page` - Container wrapper
- `.hero-card` - Main hero section with image and info
- `.hero-image`, `.hero-content`, `.hero-title`, `.hero-meta`, `.hero-details`
- `.section-card` - Info sections
- `.section-title` - Section headers
- `.info-list`, `.info-row`, `.info-label`, `.info-value`
- `.content-grid`, `.content-column` - Two-column layout
- `.audit-footer` - Created/modified timestamps

**Only add scoped styles for page-specific elements** (e.g., supplies grid for printers, version list for applications).

### PrinterDetail.vue is the Master Template for Detail Pages

Use `PrinterDetail.vue` as the reference for new detail pages. Follow its structure and styling patterns.

### List Pages - Use Global Styles

All list pages should use the **unified global styles** from `style.css`:

- `.page-header` - Header with title and action button
- `.filters` - Search and filter controls
- `.card` - Main content container
- `.table-container` - Scrollable table wrapper
- `table`, `th`, `td` - Table styling
- `.pagination` - Page navigation
- `.badge`, `.badge-success`, etc. - Status badges
- `.actions` - Action button column

**PrintersList.vue is the Master Template for List Pages**

Use `PrintersList.vue` as the reference for new list pages. It has NO scoped styles - everything uses global CSS.

**Only add scoped styles for page-specific elements** (e.g., icon cells for applications, stats badge for knowledge base).

### Dark Mode Support

Dark mode is automatic via `@media (prefers-color-scheme: dark)`. Using CSS variables ensures colors adapt automatically - no extra work needed per page.

## Component Organization

- **Global styles**: `src/assets/style.css`
- **Page-specific styles**: Scoped `<style scoped>` block, only for unique elements
- **Font sizes**: Use `rem` units, base is 18px for readability on 1080p

## File Structure

```
src/
  assets/
    style.css          # Global styles, CSS variables, detail page styles
  views/
    machines/
      MachineDetail.vue   # Uses global styles only
    pcs/
      PCDetail.vue        # Global + PC-specific (app-list, etc.)
    printers/
      PrinterDetail.vue   # Global + printer-specific (supplies-grid)
    applications/
      ApplicationDetail.vue  # Global + app-specific (version-list, pc-list)
```