familienarchiv/docs/STYLEGUIDE.md

Familienarchiv — Design Styleguide

This document defines the visual language for the Familienarchiv frontend. All UI work should follow these conventions to stay consistent with the De Gruyter Brill corporate identity.

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Brand Identity

The design is based on the De Gruyter Brill brand identity (unveiled at Frankfurt Book Fair 2024). Key characteristics:

• Clean white backgrounds, high contrast
• Strong typographic hierarchy (uppercase labels, serif body text)
• Academic publisher aesthetic: authoritative, clear, uncluttered
• The Melrose purple (#B4B9FF) quotation-mark logo is the primary brand signature

---

Colors

Defined in src/routes/layout.css as @theme variables. All generate Tailwind utilities automatically (bg-*, text-*, border-*).

Token	Hex	Usage
brand-navy	#012851	Primary text, headings, buttons, active states — Prussian Blue
brand-mint	#A1DCD8	Accent color, icon tints, hover underlines — Aqua Island
brand-purple	#B4B9FF	Logo, nav active state highlight, top accent strip — Melrose
brand-sand	#F0EFE9	Subtle card backgrounds, borders, hover backgrounds — paper tone
brand-white	#FFFFFF	Page background, card surfaces
brand-dark	#0D0D0D	Near-black text when maximum contrast is needed

Color usage rules

• Never use raw hex values in components — always use token utilities.
• Page and card backgrounds are white. Use bg-brand-sand only for subtle inset areas (e.g. bg-brand-sand/30).
• brand-navy is the workhorse: headings, body text, borders, primary buttons.
• brand-mint is an accent only — never use it as primary text color on white (contrast too low).
• brand-purple is reserved for the logo and the single top accent strip in the header.

---

Typography

Fonts

Role	Font	Tailwind	Notes
Body / Serif	Tinos (Times substitute)	font-serif	Loaded from Google Fonts. Used for document titles, names, body copy, dates. Matches DGB's use of Times.
UI / Sans	Montserrat (Gotham substitute)	font-sans	Loaded from Google Fonts. Used for labels, navigation, buttons, metadata, form elements. Matches DGB's use of Gotham.

Type scale and usage

Element	Classes	Example
Page title	font-serif text-3xl text-brand-navy	<h1>
Card section heading	font-sans text-xs font-bold uppercase tracking-widest text-gray-400	Section labels
Document / item title	font-serif text-xl font-medium text-brand-navy	List items
Metadata / label	font-sans text-xs font-bold uppercase tracking-widest text-gray-500	Field labels
Body text	font-serif text-sm text-brand-navy	Descriptions, summaries
Navigation	font-sans text-xs font-bold uppercase tracking-widest	Nav links

Rules

• Labels are always uppercase + tracked: text-xs font-bold uppercase tracking-widest
• Headings use font-sans (Montserrat), set in CSS globally.
• Content (document titles, person names, summaries) uses font-serif (Tinos).
• Never use font-serif for UI chrome (buttons, labels, nav).

---

Icons

Library

686 SVG icons in frontend/static/degruyter-icons/. Two families:

• Simple — single-color, action-oriented. Use for all UI icons. Available in 4 sizes.
• Complex — multi-color illustrative icons. Use sparingly for empty states or section headers.

Simple icon sizes

Size	Pixels	Path segment	Use
XS	12px	X-Small-12px	Inline text hints, badges
SM	16px	Small-16px	Compact UI, table cells
MD	24px	Medium-24px	Standard UI icon — default choice
LG	32px	Large-32px	Feature headers, empty states

URL pattern

/degruyter-icons/Simple/{Size}/SVG/{Category}/{Name}-{Size-Code}.svg

Size codes: XS, SM, MD, LG

Usage as <img> (recommended for static icons)

SVG fills are hardcoded to #000000. Use CSS to tint/size them:

<!-- Standard icon -->
<img src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Edit-Content-MD.svg"
     alt="" aria-hidden="true" class="w-6 h-6" />

<!-- Muted/secondary icon -->
<img src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Edit-Content-MD.svg"
     alt="" aria-hidden="true" class="w-6 h-6 opacity-40" />

<!-- Colored via CSS filter (navy tint) -->
<img src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Edit-Content-MD.svg"
     alt="" aria-hidden="true"
     class="w-6 h-6"
     style="filter: invert(11%) sepia(58%) saturate(1200%) hue-rotate(192deg) brightness(95%) contrast(101%)" />

Note: Always include alt="" and aria-hidden="true" for decorative icons. For meaningful icons (no visible label next to them), use a descriptive alt text instead.

Key icons for this app

Use case	Icon path
Edit / Bearbeiten	Action/Edit-Content-MD.svg
Search / Suche	Action/Mag-Glass-MD.svg
New document	Action/Add/Add-General-MD.svg
Download	Action/Download-MD.svg
Upload	Action/Upload-MD.svg
Filter	Action/Filter/Filter-Outline-MD.svg
Calendar / date	Action/Calendar/Calendar-Add-MD.svg
Location	Action/Location-MD.svg
Person / account	Action/Account-MD.svg
Chat / conversation	Action/Chat-MD.svg
Tag / bookmark	Action/Bookmark/Bookmark-Outline-MD.svg
Close / dismiss	Action/Close-MD.svg
Back / left arrow	Action/Arrow/Arrow-Left-MD.svg
Settings / admin	Action/Settings-MD.svg
Document / PDF	Action/PDF-Document-MD.svg
Mail	Action/Mail-MD.svg
Delete	Action/Remove/Remove-General-MD.svg
Info	Action/Info/Block/Info-Block-Border-MD.svg

---

Spacing

Based on Tailwind's 4pt grid. Prefer multiples of 4 for all spacing.

Scale	Value	Use
p-1 / gap-1	4px	Tight inline spacing
p-2	8px	Small padding (badges, chips)
p-3	12px	Compact buttons
p-4	16px	Default section padding
p-6	24px	Card inner padding (default)
p-8	32px	Large card padding
p-10	40px	Page vertical padding
gap-6	24px	Grid/list gaps
mb-6	24px	Standard spacing between sections
mb-10	40px	Large spacing between card sections

---

Layout

Page wrapper

All content pages use:

<div class="max-w-7xl mx-auto py-8 px-4 sm:px-6 lg:px-8">

Narrower pages (forms, detail views):

<div class="max-w-4xl mx-auto py-10 px-4">

Header

The global sticky header in +layout.svelte:

• Height: 68px (4px purple accent strip + 64px nav bar)
• Background: bg-white
• Bottom border: border-b border-gray-100
• Z-index: z-50

Full-screen views

Document detail (/documents/[id]) uses a full-viewport split layout:

<div class="h-screen flex flex-col bg-white">
  <!-- top bar -->
  <!-- content: sidebar + preview -->
</div>

---

Components

Card

Standard content card:

<div class="bg-white shadow-sm border border-brand-sand rounded-sm p-6">
  <h2 class="text-xs font-bold uppercase tracking-widest text-gray-400 mb-5">
    Section Title
  </h2>
  <!-- content -->
</div>

Card with colored accent bar (person/document detail):

<div class="bg-white shadow-sm border border-brand-sand rounded-sm overflow-hidden">
  <div class="h-2 bg-brand-navy w-full"></div>
  <div class="p-8 md:p-10">
    <!-- content -->
  </div>
</div>

Buttons

Primary button:

<button class="bg-brand-navy text-white px-5 py-2 text-xs font-bold uppercase tracking-widest font-sans hover:bg-brand-navy/90 transition-colors">
  Speichern
</button>

Secondary / outline button:

<button class="border border-gray-300 text-gray-600 px-5 py-2 text-xs font-bold uppercase tracking-widest font-sans hover:bg-gray-50 transition-colors rounded-sm">
  Abbrechen
</button>

Ghost / text button (inline actions):

<button class="text-brand-navy/60 hover:text-brand-navy text-sm font-medium font-sans transition-colors">
  Aktion
</button>

Destructive button:

<button class="border border-red-300 text-red-600 px-4 py-2 text-xs font-bold uppercase tracking-widest font-sans hover:bg-red-50 transition-colors rounded-sm">
  Löschen
</button>

Button with DGB icon:

<button class="inline-flex items-center gap-2 bg-brand-navy text-white px-4 py-2 text-xs font-bold uppercase tracking-widest font-sans hover:bg-brand-navy/90 transition-colors">
  <img src="/degruyter-icons/Simple/Small-16px/SVG/Action/Edit-Content-SM.svg"
       alt="" aria-hidden="true" class="w-4 h-4 invert" />
  Bearbeiten
</button>

Use class="invert" on icons inside dark (navy) buttons to make the black SVG white.

Form inputs

Label + input pair:

<div>
  <label for="field" class="block text-xs font-bold uppercase tracking-widest text-gray-500 mb-1.5 font-sans">
    Feldname *
  </label>
  <input
    id="field" name="field" type="text"
    class="block w-full border border-gray-300 py-2.5 px-3 text-sm font-serif text-brand-navy placeholder-gray-400 focus:border-brand-navy focus:ring-1 focus:ring-brand-navy focus:outline-none"
  />
</div>

Search input:

<div class="relative">
  <input type="text" placeholder="Suchen..."
    class="block w-full border border-gray-300 py-2.5 pr-10 pl-3 font-sans text-sm text-brand-navy placeholder-gray-400 focus:border-brand-navy focus:ring-1 focus:ring-brand-navy focus:outline-none" />
  <div class="pointer-events-none absolute inset-y-0 right-0 flex items-center pr-3">
    <img src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Mag-Glass-MD.svg"
         alt="" aria-hidden="true" class="w-4 h-4 opacity-40" />
  </div>
</div>

Status badges

<!-- Mint (uploaded/active) -->
<span class="inline-flex items-center rounded-full border border-brand-mint/50 bg-brand-mint/20 text-brand-navy px-2.5 py-0.5 text-[10px] font-bold tracking-wide uppercase font-sans">
  UPLOADED
</span>

<!-- Yellow (placeholder/pending) -->
<span class="inline-flex items-center rounded-full border border-yellow-200 bg-yellow-50 text-yellow-700 px-2.5 py-0.5 text-[10px] font-bold tracking-wide uppercase font-sans">
  PLACEHOLDER
</span>

Tag chips

<button class="inline-flex items-center rounded bg-brand-sand/30 px-2 py-1 text-[10px] font-bold tracking-widest text-brand-navy uppercase font-sans transition-colors hover:bg-brand-navy hover:text-white">
  Schlagwort
</button>

Back link

<a href="/persons" class="inline-flex items-center text-xs font-bold uppercase tracking-widest text-gray-500 hover:text-brand-navy transition-colors group mb-4 font-sans">
  <img src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Arrow/Arrow-Left-MD.svg"
       alt="" aria-hidden="true"
       class="w-4 h-4 mr-2 opacity-40 group-hover:opacity-100 transition-opacity" />
  Zurück zur Übersicht
</a>

Subtle "new item" link

<a href="/documents/new" class="inline-flex items-center gap-1 text-sm font-medium text-brand-navy/60 hover:text-brand-navy transition-colors font-sans">
  <img src="/degruyter-icons/Simple/Medium-24px/SVG/Action/Add/Add-General-MD.svg"
       alt="" aria-hidden="true" class="w-4 h-4 opacity-60" />
  Neues Dokument
</a>

Empty state

<div class="p-16 text-center">
  <div class="mx-auto mb-4 w-16 h-16 flex items-center justify-center">
    <img src="/degruyter-icons/Simple/Large-32px/SVG/Action/Mag-Glass-LG.svg"
         alt="" aria-hidden="true" class="w-10 h-10 opacity-20" />
  </div>
  <h3 class="font-serif text-lg font-medium text-brand-navy">Keine Dokumente gefunden</h3>
  <p class="mt-1 font-sans text-sm text-gray-500">Versuchen Sie, die Filter anzupassen.</p>
</div>

Nav active state

Current page nav link:

class="text-brand-navy bg-brand-purple/15 rounded"

Inactive nav link:

class="text-gray-500 hover:text-brand-navy hover:bg-brand-sand/60 rounded"

Both share the base: inline-flex items-center px-3 py-1.5 text-xs font-bold uppercase tracking-widest font-sans transition-colors

Save bar (long forms)

Sticky full-bleed (document edit):

<div class="sticky bottom-0 z-10 -mx-4 px-6 py-4 bg-white border-t border-brand-sand shadow-[0_-2px_8px_rgba(0,0,0,0.06)] flex items-center justify-between">
  <a href="..." class="text-xs font-bold uppercase tracking-widest text-gray-500 hover:text-brand-navy font-sans transition-colors">
    Abbrechen
  </a>
  <button type="submit" class="bg-brand-navy text-white px-6 py-2.5 text-xs font-bold uppercase tracking-widest font-sans hover:bg-brand-navy/90 transition-colors">
    Speichern
  </button>
</div>

Card-style (short forms):

<div class="mt-4 flex items-center justify-between rounded-sm border border-brand-sand bg-white px-6 py-4 shadow-sm">

---

Do / Don't

Do	Don't
Use font-sans for all UI labels, buttons, nav	Use font-serif for buttons or labels
Use uppercase tracking-widest for labels	Use sentence case for field labels
Use brand-navy for primary actions	Use brand-mint as primary action color
Use opacity-* to create icon tints	Change icon fill color inline
Use invert class on icons inside bg-brand-navy buttons	Use colored icon files for button icons
Use rounded-sm for cards and buttons (subtle)	Use rounded-full for non-pill elements
Use shadow-sm for card elevation	Use large shadows
Keep borders border-gray-100 or border-brand-sand	Use dark borders