Move the repeated 'html, body { margin:0; padding:0; height:100% }' block from
main.css, search.css, tfe.css, and apropos.css into the single canonical location
in common.css. All four public page stylesheets already load common.css first, so
the rule applies identically — no visual change.
Fix pages-edit.php invalid HTML: the EasyMDE <link rel=stylesheet> was placed
inside <body> (after head.php was already closed), which is invalid. Add an
$extraCss hook to templates/admin/head.php so pages can inject <link> tags into
<head> via an array variable, matching the pattern already used by the public
templates/public/head.php. Also add a symmetric $extraJs hook to
templates/admin/footer.php for future use. pages-edit.php now sets
$extraCss = ['easymde.min.css'] before requiring head.php; the EasyMDE JS
<script> and its inline init remain in <body> in the correct load order.
- Flat purple-gradient nav bar with POSTERG/RÉPERTOIRE/À PROPOS links
- Full-width search bar with icon, bottom-border only, below nav
- Home: white bg, media card grid (thumbnail + author/title label below)
- Répertoire: 4-column index (Années/Catégories/Étudiantes/Mots-clés)
- TFE: 2-column layout (large text left, media right)
- À Propos: 2-column, large monospace text, new apropos.php page
- Admin: dark theme (#1a1a1a), purple gradient nav, bottom-border inputs
- New shared partials: templates/nav.php, templates/search-bar.php
- Rewrote all CSS: common, main, search, tfe, apropos, admin
- Rename memoire.php to tfe.php throughout codebase
- Create dedicated tfe.css with rounded header/main/footer layout
- Move metadata (orientation, AP program, finality, keywords) to header
- Move back button from header to footer
- Create shared templates/head.php for common HTML head section
- Maintain rounded borders (40px) matching main site design
- Keep purple header (#9557b5), green main (#3c856b), dark footer (#222)
- Improve content readability with centered max-width layout
- Add responsive design for mobile devices
