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-# Copilot Instructions — fvtt-celestopol
-
-## Project Overview
-
-This is a **Foundry VTT system** for **Célestopol 1922**, a French tabletop RPG set in an art-deco 1922 universe. The project targets FoundryVTT v13+ and is developed in French.
-
-The reference rulebooks are in `__regles/` (gitignored):
-- *Célestopol 1922 Livre de base* — core rulebook
-- *Célestopol 1922 Fiches de prêts à jouer* — pre-generated character sheets
-
-## Architecture
-
-This system uses **FoundryVTT v13 DataModels + ApplicationV2** — NOT the legacy template.json / AppV1 approach.
-
-```
-fvtt-celestopol.mjs          # Main entry point (Hooks.once("init"))
-module/
-  config/system.mjs          # All game constants (SYSTEM export)
-  models/                    # TypeDataModel subclasses (character, npc, items)
-  documents/                 # Actor, Item, ChatMessage, Roll wrappers
-  applications/sheets/       # AppV2 sheets (HandlebarsApplicationMixin)
-lang/fr.json                 # French i18n (key prefix: CELESTOPOL.*)
-styles/                      # LESS source files
-css/                         # Compiled CSS (via gulp)
-templates/                   # Handlebars (.hbs) templates
-assets/fonts/                # CopaseticNF art-deco font
-assets/ui/                   # Background images
-assets/icons/                # Item icons
-packs-system/                # Source files for compendium packs
-```
-
-## DataModels (no template.json)
-
-- Extend `foundry.abstract.TypeDataModel`
-- Schema in `static defineSchema()` using `foundry.data.fields.*`
-- `prepareDerivedData()` for computed values
-- Files: `module/models/character.mjs`, `npc.mjs`, `items.mjs`
-
-## ApplicationV2 / Sheets
-
-- Actor sheets: `HandlebarsApplicationMixin(foundry.applications.sheets.ActorSheetV2)`
-- Item sheets: `HandlebarsApplicationMixin(foundry.applications.sheets.ItemSheetV2)`
-- `static DEFAULT_OPTIONS` for config; `static PARTS` for templates
-- `_prepareContext()` for base context; `_preparePartContext(partId, context)` for per-tab
-- Edit/Play mode toggle via `_sheetMode` + `isPlayMode`/`isEditMode` getters
-- Actions: `static #onXxx(event, target)` private static methods in `DEFAULT_OPTIONS.actions`
-- `form: { submitOnChange: true }` enables live saving
-
-## Roll Mechanics
-
-- Pool of d6 dice: `nbDice = max(1, skillValue + woundMalus)`
-- Formula: `{n}d6 [+ moonBonus + modifier]`
-- Moon phase bonus: Nouvelle Lune=0, Croissants=+1, Gibbeuse=+2, Pleine Lune=+3
-- Compare total vs difficulty threshold (normal=7)
-- Wound malus: levels 1-2=0, 3-4=-1, 5-6=-2, 7=-3, 8=-999 (out)
-- DialogV2 for roll configuration: `foundry.applications.api.DialogV2.wait(...)`
-
-## Game Data (4 stats × 4 skills)
-
-- **Âme**: Artifice, Attraction, Coercition, Faveur
-- **Corps**: Échauffourée, Effacement, Mobilité, Prouesse
-- **Cœur**: Appréciation, Arts, Inspiration, Traque
-- **Esprit**: Instruction, Merveilleux technologique, Raisonnement, Traitement
-
-**Tracks**: Blessures (8 niveaux), Destin (8), Spleen (8)  
-**Anomalies**: 9 types (none + 8)  
-**Factions**: 8 standard + 2 custom
-
-## Build
-
-```bash
-npm install          # Install dev deps
-npx gulp css         # Compile LESS → css/fvtt-celestopol.css (once)
-npx gulp             # Compile + watch
-```
-
-## Visual Style
-
-- Font: **CopaseticNF** (Regular + Bold, in `assets/fonts/`) — art-deco style
-- Header bg color: `rgb(12, 76, 12)` (dark green) with orange text (`#e07b00`)
-- Sheet header texture: `assets/ui/fond_cadrille.jpg`
-- CSS variables: `--cel-green`, `--cel-orange`, `--cel-font-title`, etc.
-
-## Language
-
-All in-game text, labels, and code comments should be in **French**. Code identifiers may be English. All i18n keys use the `CELESTOPOL.*` prefix (see `lang/fr.json`).
-