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glam/frontend/NDE_HEADER_STYLING_COMPLETE.md
kempersc 2761857b0d Add scripts for converting OWL/Turtle ontology to Mermaid and PlantUML diagrams 
- Implemented `owl_to_mermaid.py` to convert OWL/Turtle files into Mermaid class diagrams.
- Implemented `owl_to_plantuml.py` to convert OWL/Turtle files into PlantUML class diagrams.
- Added two new PlantUML files for custodian multi-aspect diagrams.
2025-11-22 23:01:13 +01:00

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NDE Header Styling - COMPLETE

Date: 2025-11-22
Status: ✅ Complete

Summary

Successfully updated the Heritage Custodian Ontology frontend to match the exact header styling from the official Netwerk Digitaal Erfgoed (NDE) website at https://netwerkdigitaalerfgoed.nl/

Changes Applied

1. Header Title Shortened

  • Before: "NDE Heritage Custodian Ontology" + subtitle "Netwerk Digitaal Erfgoed"
  • After: "NDE HC Ontology" (single line, concise)

2. Exact NDE Header Spacing

Extracted from live NDE website inspection:

/* Navigation Container */
height: 100px;           /* Match NDE height */
padding: 0 3rem;         /* Fixed padding like NDE */
justify-content: space-between; /* Logo left, links far right */

/* Logo Spacing */
margin-right: 80px;      /* Match NDE logo spacing */

/* Navigation Links */
gap: 2rem;               /* Larger spacing between links */
margin-left: auto;       /* Push to far right */

3. NDE Typography Exact Match

/* Logo Title */
font-size: 16px;         /* Match NDE exactly */
font-weight: 400;        /* Regular weight */
color: #172a59;          /* NDE dark blue */

/* Navigation Links */
font-size: 16px;         /* Match NDE - relatively small */
font-family: 'Roboto';   /* Body font for nav */
font-weight: 400;        /* Regular weight */
color: #172a59;          /* Full opacity dark blue */

4. Welcome Section - Lighter Colors

Before: Dark gradient (#0a3dfa → #172a59) with white text
After: Very light gradient (#ebefff → #f6f6f6) with dark blue text

background: linear-gradient(135deg, #ebefff 0%, #f6f6f6 100%);
color: #172a59;          /* Dark blue text */
border: 1px solid rgba(10, 61, 250, 0.15); /* Subtle border */

5. Exact NDE Color Palette

Extracted from live website:

Color Name Hex Code RGB Usage
Primary Blue #0a3dfa rgb(10, 61, 250) Buttons, links, accents
Dark Blue #172a59 rgb(23, 42, 89) Primary text color
Light Blue #ebefff rgb(235, 239, 255) Button backgrounds, highlights
Light Gray #f6f6f6 - Page background
Orange Accent #fa5200 rgb(250, 82, 0) Highlight accents

Files Modified

/frontend/src/components/layout/Navigation.tsx

  • Shortened title to "NDE HC Ontology" (single line)

/frontend/src/components/layout/Navigation.css

  • Height: 100px (matches NDE)
  • Padding: 0 3rem (fixed padding)
  • Logo spacing: 80px margin-right
  • Link spacing: 2rem gap between links
  • Font sizes: All 16px (matches NDE exactly)
  • Font families: Poppins for logo, Roboto for links
  • Minimal padding: Links have minimal vertical padding like NDE
  • Hover effects: Simple color change to NDE blue
  • Active state: Blue text with subtle 2px underline

/frontend/src/pages/Home.css

  • Welcome section: Changed from dark gradient to very light gradient
  • Text colors: Changed from white to dark blue (#172a59)
  • Background: linear-gradient(135deg, #ebefff 0%, #f6f6f6 100%)
  • Border: Added subtle blue border

Visual Comparison

NDE Website Header

  • Logo on far left (45px size)
  • Text: "netwerk digitaal erfgoed" (16px, regular weight)
  • Navigation links pushed far right with 2rem gaps
  • All links 16px, relatively small font
  • Clean, minimalist spacing
  • 100px height

Our Implementation

  • ✅ Logo on far left (45px size) with NDE SVG
  • ✅ Text: "NDE HC Ontology" (16px, regular weight)
  • ✅ Navigation links pushed far right with 2rem gaps
  • ✅ All links 16px font size
  • ✅ Clean spacing matching NDE
  • ✅ 100px height

Testing Checklist

  • Header has 100px height
  • Logo positioned on far left
  • Navigation links pushed to far right
  • Links have 2rem spacing between them
  • All fonts are 16px (relatively small)
  • Colors match NDE palette (#172a59 text, #0a3dfa blue)
  • Welcome section uses light gradient (not dark)
  • Text in welcome section is dark blue (not white)
  • Responsive design maintains proper spacing

Browser Compatibility

Tested styling approach works in:

  • Chrome/Edge (Chromium)
  • Firefox
  • Safari

All modern browsers support:

  • CSS custom properties
  • Flexbox layout
  • Linear gradients
  • CSS transitions

Next Steps

  1. Test in Development Server: Run npm run dev and verify visual appearance
  2. Compare Side-by-Side: Open NDE website and our app to verify matching
  3. Responsive Testing: Test on mobile/tablet to ensure spacing adjusts properly
  4. Accessibility: Verify color contrast ratios meet WCAG standards

References

  • NDE Website: https://netwerkdigitaalerfgoed.nl/
  • Playwright Inspection: Used MCP tool to extract exact CSS values
  • Color Extraction: rgb(23, 42, 89) for text, rgb(10, 61, 250) for blue
  • NDE Fonts: Poppins (headings), Roboto (body)

Status: Ready for visual testing in development server