Initial commit

2026-05-04 09:45:17 +01:00
commit 18b7e11657
31 changed files with 2838 additions and 0 deletions
--- a/.dockerignore
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+.venv/
+__pycache__/
+*.pyc
+.git/
+.gitignore
+*.md
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.venv/
+__pycache__/
+*.pyc
+.DS_Store
+.idea/
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -0,0 +1,97 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project status
+
+The repo currently contains only `wordsearch-specs.md` — the implementation has not been written yet. The spec is the source of truth; read it before any change. When implementing, follow the directory layout, routes, and behaviours it prescribes rather than improvising.
+
+## Local development
+
+Iterate on the Mac with a venv + `uvicorn --reload`; only use Docker when verifying the deploy. The Docker bind-mount (`./themes`) points at the same directory, so local and container runs share theme state.
+
+```bash
+python3 -m venv .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+uvicorn app.main:app --reload --port 8000
+```
+
+`--reload` restarts on `.py` changes; Jinja2 templates reload without a restart. `.venv/` must be in `.gitignore`.
+
+### Dependency management
+
+**Use `requirements.txt` with pinned versions. Do not introduce Poetry, uv, Pipenv, or `pyproject.toml`.** This is a homelab app — plain `pip` works identically in the venv and inside the Docker container with no extra tooling.
+
+Initial pin set (don't drop any of these without checking why they're here):
+
+```
+fastapi==0.115.0
+uvicorn[standard]==0.32.0
+jinja2==3.1.4
+reportlab==4.2.5
+python-multipart==0.0.12
+```
+
+`python-multipart` is required for the form-encoded `POST /generate` and theme-editor submits — easy to omit until the form 500s.
+
+### What not to add
+
+No test framework, no linter, no formatter, no build step is specified. Don't introduce one without asking. The project is deliberately minimal: single language, single process, no build pipeline, no DB.
+
+### Docker
+
+Production runs the same code in a container — `docker compose up` mounts `./themes` as a volume. The container has no venv (the container *is* the isolation); the Dockerfile `pip install`s into the system Python. Don't try to share a venv between host and container.
+
+## Architecture
+
+### Two-form word model (central design idea)
+
+Every input word produces two strings, and they are not interchangeable:
+
+- **Display form** — original string, untouched. Goes on the PDF word list.
+- **Grid form** — stripped of leading prefix tokens, uppercased, whitespace/punctuation removed. Goes in the grid and is what length filters and placement operate on.
+
+Prefix stripping (`Mr`, `Mrs`, `Miss`, `Dr`, `Sir`, `Captain`, `Saint`, etc. — full list in `app/normaliser.py::PREFIXES`) is **token-based, case-insensitive, with optional trailing dot**. `"Misty"` does NOT match `"Miss"`. Multiple consecutive prefixes strip (`"Mr Dr Strange"` → `STRANGE`). A word that is *only* a prefix (`"Mr"`) keeps as `MR` and logs a stderr warning. Empty grid form after stripping → skip and warn.
+
+The PDF word list shows `GRIDFORM (original prefix tokens)` only when something was stripped, e.g. `TICKLE (Mr)`. Bare `GRIDFORM` otherwise.
+
+### Direction set is computed, not picked
+
+Don't expose every direction as an independent toggle. Horizontal (→) and vertical (↓) are always on. The two user toggles compose:
+
+```
+base = { →, ↓ }
+if diagonal: base |= { ↘, ↗ }
+if reversed: base |= { reverse(d) for d in base }
+```
+
+So `reversed` without `diagonal` gives `→ ↓ ← ↑` (no diagonals reversed because none were in `base`). `diagonal + reversed` gives all 8.
+
+### Placement: retry-then-skip, not backtrack
+
+Per word: random direction + random start, validate collision (empty cells, or matching letters when overlap is on), commit or retry up to 200 times. Skip after 200 and warn — never block, never backtrack already-placed words. If fewer words placed than requested, generate the puzzle anyway and surface a warning to the result page.
+
+### No sticky state
+
+All optional toggles (diagonal, reversed, overlap) default **off** on every `/` page load. Don't add cookies, localStorage, or session state to remember the last config. Each puzzle is configured explicitly.
+
+### Storage
+
+Flat JSON files under `themes/<slug>.json` with `{ name, words: [...] }`. No DB. The slug is the filename and is locked after creation. `themes/` is the only persistence — generated PDFs are streamed straight to the browser as `<slug>_<YYYY-MM-DD_HH-MM-SS>.pdf` and never written to disk on the server.
+
+### Server-rendered, almost no JS
+
+Jinja2 templates only. The single piece of vanilla JS lives in the theme editor: a debounced `fetch` to `POST /api/normalise` to render the live preview of grid forms. No bundler, no framework, no build artifacts in the repo.
+
+### Auth
+
+None by design (homelab use). If exposing publicly, add HTTP basic auth as FastAPI middleware — don't introduce a user model.
+
+## Conventions worth preserving
+
+- Validation errors (invalid slug, empty word list, `max_length < min_length`) must render a clear message, never a stack trace.
+- `max_length` is clamped to `grid_size` before filtering.
+- All grid letters are uppercase A–Z, including the random fill.
+- The PDF is plain: no footer, no timestamp, no branding, no toggle state printed. The filename carries the timestamp.
+- v1 ships puzzle-only — no answer key PDF.
--- a/8
+++ b/8
@@ -0,0 +1,8 @@
+FROM python:3.14-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY app/ ./app/
+COPY static/ ./static/
+EXPOSE 8000
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
--- a/README.md
+++ b/README.md
@@ -0,0 +1,60 @@
+# Wordsmith — Puzzle Workshop
+
+A small self-hosted web app that generates printable word search PDFs from
+themed word lists. Single Python process, no database, no build step.
+
+## Stack
+
+- Python 3.14+
+- FastAPI + Jinja2 (server-rendered HTML)
+- reportlab (PDF)
+- A small piece of vanilla JS for the live theme-editor preview
+
+## Local development
+
+```bash
+python3 -m venv .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+uvicorn app.main:app --reload --port 8000
+```
+
+`--reload` restarts on `.py` changes; Jinja templates reload without a restart.
+
+## Docker
+
+```bash
+docker compose up --build
+```
+
+Maps host port `3801` → container `8000`. The bind-mounts `./themes:/app/themes`,
+so any theme JSON files in the repo's `themes/` folder are picked up at boot
+and any UI-edited themes are written back to the same place.
+
+## Themes
+
+Each theme is a flat JSON file under `themes/<slug>.json`:
+
+```json
+{
+  "name": "Mr Men Characters",
+  "words": ["Mr Tickle", "Mr Happy", "Little Miss Sunshine"]
+}
+```
+
+Words can include leading honorific tokens (`Mr`, `Mrs`, `Miss`, `Dr`,
+`Captain`, etc.) — they're stripped from the grid form but kept on the PDF
+word list in parentheses, e.g. `TICKLE (Mr)`.
+
+## Deployment
+
+The repo is intended to be deployed via [Komodo](https://komo.do)'s git-stack
+mode: point a stack at this repo, set the compose path to `docker-compose.yml`,
+and redeploy. Themes added via the deployed UI live in Komodo's per-stack
+checkout — they survive normal redeploys but a Komodo "Destroy" wipes them.
+For lasting changes, edit themes locally and `git push`.
+
+## Generated PDFs
+
+Generated puzzles stream straight to the browser as a download
+(`<slug>_<YYYY-MM-DD_HH-MM-SS>.pdf`); the server keeps no copy on disk.
--- a/app/init.py
+++ b/app/init.py
--- a/app/generator.py
+++ b/app/generator.py
@@ -0,0 +1,198 @@
+"""Grid building and word placement."""
+
+from __future__ import annotations
+
+import random
+import string
+from dataclasses import dataclass, field
+
+from .normaliser import Normalised, normalise_all
+
+# Direction vectors: (drow, dcol)
+RIGHT = (0, 1)
+DOWN = (1, 0)
+DOWN_RIGHT = (1, 1)
+UP_RIGHT = (-1, 1)
+LEFT = (0, -1)
+UP = (-1, 0)
+UP_LEFT = (-1, -1)
+DOWN_LEFT = (1, -1)
+
+PLACEMENT_RETRIES = 200
+
+
+@dataclass
+class Placement:
+    word: Normalised
+    row: int
+    col: int
+    direction: tuple[int, int]
+
+
+@dataclass
+class Puzzle:
+    grid: list[list[str]]
+    placements: list[Placement]
+    skipped: list[Normalised] = field(default_factory=list)
+    filtered_out: list[Normalised] = field(default_factory=list)
+    warnings: list[str] = field(default_factory=list)
+    diagonal: bool = False
+    reversed_: bool = False
+    allow_overlap: bool = False
+
+    @property
+    def size(self) -> int:
+        return len(self.grid)
+
+    @property
+    def option_labels(self) -> list[str]:
+        labels = []
+        if self.diagonal:
+            labels.append("Diagonal")
+        if self.reversed_:
+            labels.append("Reversed")
+        if self.allow_overlap:
+            labels.append("Overlapping")
+        return labels
+
+
+def active_directions(diagonal: bool, reversed_: bool) -> list[tuple[int, int]]:
+    base = [RIGHT, DOWN]
+    if diagonal:
+        base += [DOWN_RIGHT, UP_RIGHT]
+    if reversed_:
+        base = base + [(-dr, -dc) for (dr, dc) in base]
+    return base
+
+
+def _can_place(grid: list[list[str]], word: str, row: int, col: int,
+               direction: tuple[int, int], allow_overlap: bool) -> bool:
+    size = len(grid)
+    dr, dc = direction
+    for i, ch in enumerate(word):
+        r, c = row + dr * i, col + dc * i
+        if not (0 <= r < size and 0 <= c < size):
+            return False
+        existing = grid[r][c]
+        if existing == "":
+            continue
+        if allow_overlap and existing == ch:
+            continue
+        return False
+    return True
+
+
+def _commit(grid: list[list[str]], word: str, row: int, col: int,
+            direction: tuple[int, int]) -> None:
+    dr, dc = direction
+    for i, ch in enumerate(word):
+        grid[row + dr * i][col + dc * i] = ch
+
+
+def _start_bounds(size: int, length: int,
+                  direction: tuple[int, int]) -> tuple[range, range]:
+    """Valid starting (row, col) ranges so the whole word fits."""
+    dr, dc = direction
+    if dr >= 0:
+        rows = range(0, size - (length - 1) * dr)
+    else:
+        rows = range((length - 1) * (-dr), size)
+    if dc >= 0:
+        cols = range(0, size - (length - 1) * dc)
+    else:
+        cols = range((length - 1) * (-dc), size)
+    return rows, cols
+
+
+def generate(
+    *,
+    words: list[str],
+    grid_size: int,
+    word_count: int,
+    min_length: int,
+    max_length: int,
+    diagonal: bool,
+    reversed_: bool,
+    allow_overlap: bool,
+    rng: random.Random | None = None,
+) -> Puzzle:
+    if rng is None:
+        rng = random.Random()
+
+    if grid_size < 5 or grid_size > 25:
+        raise ValueError("grid size must be between 5 and 25")
+    if word_count < 1 or word_count > 30:
+        raise ValueError("word count must be between 1 and 30")
+    if min_length < 1:
+        raise ValueError("min length must be at least 1")
+    if max_length < min_length:
+        raise ValueError("max length must be greater than or equal to min length")
+
+    effective_max = min(max_length, grid_size)
+
+    normalised = normalise_all(words)
+    eligible: list[Normalised] = []
+    filtered_out: list[Normalised] = []
+    skipped: list[Normalised] = []
+    for n in normalised:
+        if n.skipped:
+            skipped.append(n)
+            continue
+        length = len(n.grid)
+        if min_length <= length <= effective_max:
+            eligible.append(n)
+        else:
+            filtered_out.append(n)
+
+    rng.shuffle(eligible)
+    directions = active_directions(diagonal, reversed_)
+
+    grid: list[list[str]] = [["" for _ in range(grid_size)]
+                              for _ in range(grid_size)]
+    placements: list[Placement] = []
+    warnings: list[str] = []
+
+    for word in eligible:
+        if len(placements) >= word_count:
+            break
+        placed = False
+        for _ in range(PLACEMENT_RETRIES):
+            direction = rng.choice(directions)
+            rows, cols = _start_bounds(grid_size, len(word.grid), direction)
+            if not rows or not cols:
+                continue
+            row = rng.choice(rows)
+            col = rng.choice(cols)
+            if _can_place(grid, word.grid, row, col, direction, allow_overlap):
+                _commit(grid, word.grid, row, col, direction)
+                placements.append(Placement(word=word, row=row, col=col,
+                                            direction=direction))
+                placed = True
+                break
+        if not placed:
+            warnings.append(
+                f"could not place word {word.grid!r} after "
+                f"{PLACEMENT_RETRIES} attempts; skipping"
+            )
+
+    if filtered_out:
+        warnings.append(
+            f"{len(filtered_out)} word(s) excluded by length filter "
+            f"(min={min_length}, max={effective_max})"
+        )
+
+    if len(placements) < word_count:
+        warnings.append(
+            f"asked for {word_count} word(s); placed {len(placements)}"
+        )
+
+    # Fill remaining empty cells with random uppercase letters.
+    for r in range(grid_size):
+        for c in range(grid_size):
+            if grid[r][c] == "":
+                grid[r][c] = rng.choice(string.ascii_uppercase)
+
+    return Puzzle(grid=grid, placements=placements, skipped=skipped,
+                  filtered_out=filtered_out, warnings=warnings,
+                  diagonal=diagonal, reversed_=reversed_,
+                  allow_overlap=allow_overlap)
--- a/app/main.py
+++ b/app/main.py
@@ -0,0 +1,251 @@
+"""FastAPI app: routes for puzzle generation and theme management."""
+
+from __future__ import annotations
+
+from datetime import datetime
+from pathlib import Path
+
+from fastapi import FastAPI, Form, HTTPException, Request
+from fastapi.responses import HTMLResponse, JSONResponse, RedirectResponse, Response
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
+
+from . import themes as theme_store
+from .generator import generate
+from .normaliser import normalise_all
+from .pdf import render_puzzle
+
+ROOT = Path(__file__).resolve().parent.parent
+STATIC_DIR = ROOT / "static"
+TEMPLATES_DIR = Path(__file__).resolve().parent / "templates"
+
+app = FastAPI(title="Word Search Puzzle Generator")
+app.mount("/static", StaticFiles(directory=STATIC_DIR), name="static")
+templates = Jinja2Templates(directory=str(TEMPLATES_DIR))
+
+
+def _checkbox(value: str | None) -> bool:
+    return value is not None and value != "" and value.lower() not in {"0", "false", "off"}
+
+
+@app.get("/", response_class=HTMLResponse)
+def index(request: Request):
+    available = theme_store.list_themes()
+    return templates.TemplateResponse(
+        "index.html",
+        {"request": request, "themes": available, "errors": [], "warnings": []},
+    )
+
+
+@app.post("/generate")
+async def generate_puzzle(
+    request: Request,
+    theme: str = Form(...),
+    grid_size: int = Form(...),
+    word_count: int = Form(...),
+    min_length: int = Form(...),
+    max_length: int = Form(...),
+    title: str = Form(""),
+    diagonal: str | None = Form(None),
+    reversed_: str | None = Form(None, alias="reversed"),
+    overlap: str | None = Form(None),
+):
+    available = theme_store.list_themes()
+    errors: list[str] = []
+
+    try:
+        loaded = theme_store.load_theme(theme)
+    except theme_store.ThemeError as e:
+        errors.append(str(e))
+        return templates.TemplateResponse(
+            "index.html",
+            {"request": request, "themes": available, "errors": errors,
+             "warnings": []},
+            status_code=400,
+        )
+
+    if max_length < min_length:
+        errors.append("max length must be greater than or equal to min length")
+
+    if errors:
+        return templates.TemplateResponse(
+            "index.html",
+            {"request": request, "themes": available, "errors": errors,
+             "warnings": []},
+            status_code=400,
+        )
+
+    try:
+        puzzle = generate(
+            words=loaded.words,
+            grid_size=grid_size,
+            word_count=word_count,
+            min_length=min_length,
+            max_length=max_length,
+            diagonal=_checkbox(diagonal),
+            reversed_=_checkbox(reversed_),
+            allow_overlap=_checkbox(overlap),
+        )
+    except ValueError as e:
+        return templates.TemplateResponse(
+            "index.html",
+            {"request": request, "themes": available, "errors": [str(e)],
+             "warnings": []},
+            status_code=400,
+        )
+
+    display_title = title.strip() or loaded.name
+    pdf_bytes = render_puzzle(puzzle, display_title)
+
+    timestamp = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
+    filename = f"{loaded.slug}_{timestamp}.pdf"
+    return Response(
+        content=pdf_bytes,
+        media_type="application/pdf",
+        headers={"Content-Disposition": f'attachment; filename="{filename}"'},
+    )
+
+
+@app.get("/themes", response_class=HTMLResponse)
+def themes_index(request: Request):
+    return templates.TemplateResponse(
+        "themes.html",
+        {"request": request, "themes": theme_store.list_themes()},
+    )
+
+
+@app.get("/themes/new", response_class=HTMLResponse)
+def themes_new(request: Request):
+    return templates.TemplateResponse(
+        "theme_edit.html",
+        {
+            "request": request,
+            "is_new": True,
+            "name": "",
+            "slug": "",
+            "words_text": "",
+            "errors": [],
+        },
+    )
+
+
+@app.get("/themes/{slug}/edit", response_class=HTMLResponse)
+def themes_edit(request: Request, slug: str):
+    try:
+        t = theme_store.load_theme(slug)
+    except theme_store.ThemeError as e:
+        raise HTTPException(status_code=404, detail=str(e))
+    return templates.TemplateResponse(
+        "theme_edit.html",
+        {
+            "request": request,
+            "is_new": False,
+            "name": t.name,
+            "slug": t.slug,
+            "words_text": "\n".join(t.words),
+            "errors": [],
+        },
+    )
+
+
+@app.post("/themes")
+def themes_create(
+    request: Request,
+    name: str = Form(...),
+    slug: str = Form(""),
+    words: str = Form(""),
+):
+    proposed_slug = (slug.strip() or theme_store.slugify(name))
+    parsed = theme_store.parse_words_textarea(words)
+    errors: list[str] = []
+    if not theme_store.is_valid_slug(proposed_slug):
+        errors.append("slug must be lowercase letters, digits, and hyphens only")
+    if errors:
+        return templates.TemplateResponse(
+            "theme_edit.html",
+            {
+                "request": request,
+                "is_new": True,
+                "name": name,
+                "slug": proposed_slug,
+                "words_text": words,
+                "errors": errors,
+            },
+            status_code=400,
+        )
+    try:
+        theme_store.save_theme(proposed_slug, name, parsed)
+    except theme_store.ThemeError as e:
+        return templates.TemplateResponse(
+            "theme_edit.html",
+            {
+                "request": request,
+                "is_new": True,
+                "name": name,
+                "slug": proposed_slug,
+                "words_text": words,
+                "errors": [str(e)],
+            },
+            status_code=400,
+        )
+    return RedirectResponse(url="/themes", status_code=303)
+
+
+@app.post("/themes/{slug}")
+def themes_update(
+    request: Request,
+    slug: str,
+    name: str = Form(...),
+    words: str = Form(""),
+):
+    parsed = theme_store.parse_words_textarea(words)
+    try:
+        theme_store.save_theme(slug, name, parsed)
+    except theme_store.ThemeError as e:
+        return templates.TemplateResponse(
+            "theme_edit.html",
+            {
+                "request": request,
+                "is_new": False,
+                "name": name,
+                "slug": slug,
+                "words_text": words,
+                "errors": [str(e)],
+            },
+            status_code=400,
+        )
+    return RedirectResponse(url="/themes", status_code=303)
+
+
+@app.post("/themes/{slug}/delete")
+def themes_delete(slug: str):
+    try:
+        theme_store.delete_theme(slug)
+    except theme_store.ThemeError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    return RedirectResponse(url="/themes", status_code=303)
+
+
+@app.get("/api/themes")
+def api_themes():
+    return [{"slug": t.slug, "name": t.name, "word_count": len(t.words)}
+            for t in theme_store.list_themes()]
+
+
+@app.post("/api/normalise")
+async def api_normalise(request: Request):
+    payload = await request.json()
+    words = payload.get("words", []) if isinstance(payload, dict) else []
+    if not isinstance(words, list):
+        return JSONResponse({"error": "words must be a list"}, status_code=400)
+    results = normalise_all([str(w) for w in words])
+    return [
+        {
+            "display": n.display,
+            "grid": n.grid,
+            "stripped": n.stripped_prefixes,
+            "skipped": n.skipped,
+            "warning": n.warning,
+        }
+        for n in results
+    ]
--- a/app/normaliser.py
+++ b/app/normaliser.py
@@ -0,0 +1,72 @@
+"""Word normalisation: produce display + grid forms with prefix stripping."""
+
+from __future__ import annotations
+
+import re
+import sys
+from dataclasses import dataclass
+
+PREFIXES = {
+    "mr", "mrs", "ms", "miss",
+    "dr", "sir", "dame", "lord", "lady", "master",
+    "captain", "capt", "cpt",
+    "professor", "prof",
+    "saint", "st",
+}
+
+
+@dataclass
+class Normalised:
+    display: str
+    grid: str
+    stripped_prefixes: list[str]
+    skipped: bool = False
+    warning: str | None = None
+
+
+def _strip_prefix_tokens(tokens: list[str]) -> tuple[list[str], list[str]]:
+    """Remove leading prefix tokens. Returns (stripped_prefixes, remaining_tokens)."""
+    stripped: list[str] = []
+    i = 0
+    while i < len(tokens):
+        bare = tokens[i].rstrip(".").lower()
+        if bare in PREFIXES:
+            stripped.append(tokens[i])
+            i += 1
+        else:
+            break
+    return stripped, tokens[i:]
+
+
+def normalise(word: str) -> Normalised:
+    display = word
+    tokens = word.split()
+    if not tokens:
+        return Normalised(display=display, grid="", stripped_prefixes=[],
+                          skipped=True, warning="empty word")
+
+    stripped, remainder = _strip_prefix_tokens(tokens)
+
+    if not remainder:
+        # Word is *only* prefix tokens — keep raw form, warn.
+        joined = "".join(tokens)
+        grid = re.sub(r"[^A-Za-z0-9]", "", joined).upper()
+        warning = f"word {word!r} is only prefix tokens; keeping as {grid}"
+        print(f"[normaliser] warning: {warning}", file=sys.stderr)
+        return Normalised(display=display, grid=grid, stripped_prefixes=[],
+                          warning=warning)
+
+    joined = "".join(remainder)
+    grid = re.sub(r"[^A-Za-z0-9]", "", joined).upper()
+
+    if not grid:
+        warning = f"word {word!r} normalises to empty after stripping; skipping"
+        print(f"[normaliser] warning: {warning}", file=sys.stderr)
+        return Normalised(display=display, grid="", stripped_prefixes=stripped,
+                          skipped=True, warning=warning)
+
+    return Normalised(display=display, grid=grid, stripped_prefixes=stripped)
+
+
+def normalise_all(words: list[str]) -> list[Normalised]:
+    return [normalise(w) for w in words]
--- a/app/pdf.py
+++ b/app/pdf.py
@@ -0,0 +1,143 @@
+"""PDF rendering of a generated puzzle (A4 portrait, single page)."""
+
+from __future__ import annotations
+
+import io
+from typing import Iterable
+
+from reportlab.lib.pagesizes import A4
+from reportlab.lib.units import mm
+from reportlab.pdfbase.pdfmetrics import stringWidth
+from reportlab.pdfgen import canvas
+
+from .generator import Puzzle
+
+PAGE_W, PAGE_H = A4
+MARGIN = 18 * mm
+
+TITLE_FONT = "Helvetica-Bold"
+TITLE_SIZE = 24
+
+OPTIONS_FONT = "Helvetica"
+OPTIONS_SIZE = 10
+
+GRID_FONT = "Courier-Bold"
+
+LIST_HEADING_FONT = "Helvetica-Bold"
+LIST_HEADING_SIZE = 14
+LIST_ENTRY_FONT_BOLD = "Helvetica-Bold"
+LIST_ENTRY_FONT_LIGHT = "Helvetica"
+LIST_ENTRY_SIZE = 11
+
+
+def _column_count(n: int) -> int:
+    if n <= 8:
+        return 2
+    if n <= 18:
+        return 3
+    return 4
+
+
+def _wrap_columns(items: list[tuple], cols: int) -> list[list[tuple]]:
+    """Lay items out top-to-bottom, then left-to-right, in `cols` columns."""
+    rows = (len(items) + cols - 1) // cols
+    columns: list[list[tuple]] = [[] for _ in range(cols)]
+    for i, item in enumerate(items):
+        columns[i // rows].append(item)
+    return columns
+
+
+def _grid_geometry(grid_size: int, available_w: float, available_h: float
+                   ) -> tuple[float, float]:
+    """Choose (font_size, cell_size) so a `grid_size` x `grid_size` grid
+    fits comfortably in the available box."""
+    # Cell size driven by whichever dimension is tighter, with padding.
+    target_cell = min(available_w, available_h) / grid_size
+    cell = min(target_cell, 14 * mm)  # cap so 5x5 isn't comically huge
+    cell = max(cell, 5 * mm)
+    font_size = cell * 0.7
+    return font_size, cell
+
+
+def render_puzzle(puzzle: Puzzle, title: str) -> bytes:
+    buf = io.BytesIO()
+    c = canvas.Canvas(buf, pagesize=A4)
+
+    # Title
+    c.setFont(TITLE_FONT, TITLE_SIZE)
+    title_y = PAGE_H - MARGIN - TITLE_SIZE
+    c.drawCentredString(PAGE_W / 2, title_y, title)
+
+    # Active option labels under the title (only when extras are enabled).
+    options_y = title_y
+    labels = puzzle.option_labels
+    if labels:
+        options_y = title_y - TITLE_SIZE * 0.7
+        c.setFont(OPTIONS_FONT, OPTIONS_SIZE)
+        c.setFillGray(0.35)
+        c.drawCentredString(PAGE_W / 2, options_y,
+                            "  ·  ".join(s.upper() for s in labels))
+        c.setFillGray(0)
+
+    # Reserve space for word list at the bottom; estimate from entry count.
+    placed = puzzle.placements
+    cols = _column_count(len(placed)) if placed else 2
+    rows_per_col = (len(placed) + cols - 1) // cols if placed else 0
+    list_line_height = LIST_ENTRY_SIZE * 1.5
+    list_block_h = LIST_HEADING_SIZE * 2 + rows_per_col * list_line_height
+    list_block_h = max(list_block_h, 30 * mm)
+
+    grid_top = (options_y if labels else title_y) - 8 * mm
+    grid_bottom = MARGIN + list_block_h + 6 * mm
+    available_h = grid_top - grid_bottom
+    available_w = PAGE_W - 2 * MARGIN
+
+    grid_size = puzzle.size
+    font_size, cell = _grid_geometry(grid_size, available_w, available_h)
+    grid_w = grid_size * cell
+    grid_h = grid_size * cell
+    origin_x = (PAGE_W - grid_w) / 2
+    origin_y = grid_top - grid_h  # top of grid sits at grid_top
+
+    c.setFont(GRID_FONT, font_size)
+    for r in range(grid_size):
+        for col_idx in range(grid_size):
+            ch = puzzle.grid[r][col_idx]
+            x = origin_x + col_idx * cell + cell / 2
+            # Top row in the grid array should print at the top of the grid box.
+            y = origin_y + (grid_size - 1 - r) * cell + (cell - font_size) / 2
+            c.drawCentredString(x, y, ch)
+
+    # Word list
+    list_top = grid_bottom - 2 * mm
+    c.setFont(LIST_HEADING_FONT, LIST_HEADING_SIZE)
+    c.drawCentredString(PAGE_W / 2, list_top, "Find these words")
+
+    entries: list[tuple[str, str]] = []
+    for p in placed:
+        prefix_text = ""
+        if p.word.stripped_prefixes:
+            prefix_text = " (" + " ".join(p.word.stripped_prefixes) + ")"
+        entries.append((p.word.grid, prefix_text))
+
+    if entries:
+        column_lists = _wrap_columns(entries, cols)
+        col_w = available_w / cols
+        list_y_start = list_top - LIST_HEADING_SIZE - 4 * mm
+        for col_idx, items in enumerate(column_lists):
+            x = MARGIN + col_idx * col_w
+            for i, (grid_form, prefix) in enumerate(items):
+                y = list_y_start - i * list_line_height
+                c.setFont(LIST_ENTRY_FONT_BOLD, LIST_ENTRY_SIZE)
+                c.drawString(x, y, grid_form)
+                if prefix:
+                    bold_w = stringWidth(grid_form, LIST_ENTRY_FONT_BOLD,
+                                         LIST_ENTRY_SIZE)
+                    c.setFont(LIST_ENTRY_FONT_LIGHT, LIST_ENTRY_SIZE)
+                    c.setFillGray(0.4)
+                    c.drawString(x + bold_w, y, prefix)
+                    c.setFillGray(0)
+
+    c.showPage()
+    c.save()
+    return buf.getvalue()
--- a/app/templates/base.html
+++ b/app/templates/base.html
@@ -0,0 +1,41 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1" />
+  <title>{% block title %}Wordsmith — Puzzle Workshop{% endblock %}</title>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500;600&family=Playfair+Display:wght@800;900&display=swap" rel="stylesheet">
+  <link rel="stylesheet" href="/static/style.css" />
+</head>
+<body>
+{% set path = request.url.path %}
+<div class="shell">
+  <header class="site-header">
+    <div class="site-header__inner">
+      <a class="brand" href="/">
+        <span class="brand__mark">W</span>
+        <span>
+          <span class="brand__name">Wordsmith</span>
+          <span class="brand__tagline">PUZZLE WORKSHOP</span>
+        </span>
+      </a>
+      <nav class="tabs" aria-label="Primary">
+        <a href="/" {% if path in ['/', '/generate'] %}aria-current="page"{% endif %}>Generate</a>
+        <a href="/themes" {% if path.startswith('/themes') %}aria-current="page"{% endif %}>Themes</a>
+      </nav>
+    </div>
+  </header>
+
+  <main>
+    {% block content %}{% endblock %}
+  </main>
+
+  <footer class="site-footer">
+    ✦ &nbsp; WORDSMITH &nbsp; · &nbsp; PUZZLE WORKSHOP &nbsp; · &nbsp; EST. 2026 &nbsp; ✦
+  </footer>
+</div>
+{% block scripts %}{% endblock %}
+</body>
+</html>
--- a/app/templates/index.html
+++ b/app/templates/index.html
@@ -0,0 +1,162 @@
+{% extends "base.html" %}
+{% block title %}Generate · Wordsmith{% endblock %}
+{% block content %}
+<section class="container">
+  <div class="page-head">
+    <div class="page-head__title">
+      <div class="eyebrow">№ 01 · Studio</div>
+      <h1>Generate a puzzle</h1>
+    </div>
+    <div class="page-head__meta">{{ themes|length }} theme{{ '' if themes|length == 1 else 's' }} on file</div>
+  </div>
+  <hr class="section-rule" />
+
+  {% if errors %}
+  <div class="notice">
+    <strong>Hold on</strong>
+    <ul>
+      {% for e in errors %}<li>{{ e }}</li>{% endfor %}
+    </ul>
+  </div>
+  {% endif %}
+
+  {% if not themes %}
+  <div class="panel">
+    <p>No themes yet. <a href="/themes/new">Create one</a> to get started.</p>
+  </div>
+  {% else %}
+
+  <form class="studio" method="post" action="/generate">
+    <div class="form-grid">
+      <label class="field">
+        <span class="field__label">Theme</span>
+        <select name="theme" id="theme" required>
+          {% for t in themes %}
+          <option value="{{ t.slug }}" data-words="{{ t.words|join(',') }}">{{ t.name }} ({{ t.words|length }} words)</option>
+          {% endfor %}
+        </select>
+      </label>
+
+      <div class="row">
+        <label class="field">
+          <span class="field__label">Grid</span>
+          <input type="number" name="grid_size" id="grid-size" value="12" min="5" max="25" required />
+        </label>
+        <label class="field">
+          <span class="field__label">Words</span>
+          <input type="number" name="word_count" id="word-count-input" value="10" min="1" max="30" required />
+        </label>
+        <label class="field">
+          <span class="field__label">Min len</span>
+          <input type="number" name="min_length" value="3" min="1" required />
+        </label>
+        <label class="field">
+          <span class="field__label">Max len</span>
+          <input type="number" name="max_length" value="12" min="1" required />
+        </label>
+      </div>
+
+      <label class="field">
+        <span class="field__label">Title override</span>
+        <input type="text" name="title" placeholder="leave blank to use theme name" />
+      </label>
+
+      <fieldset class="fieldset">
+        <legend>Directions</legend>
+        <div class="directions-grid">
+          <label class="check check--locked">
+            <input type="checkbox" checked disabled />
+            <span>→ Horizontal</span>
+            <span class="lock">REQ</span>
+          </label>
+          <label class="check check--locked">
+            <input type="checkbox" checked disabled />
+            <span>↓ Vertical</span>
+            <span class="lock">REQ</span>
+          </label>
+          <label class="check">
+            <input type="checkbox" name="diagonal" />
+            <span>↘ ↗ Diagonal</span>
+          </label>
+          <label class="check">
+            <input type="checkbox" name="reversed" />
+            <span>← ↑ ↖ ↙ Reversed</span>
+          </label>
+        </div>
+        <div class="fieldset__divider">
+          <label class="check">
+            <input type="checkbox" name="overlap" />
+            <span>Allow overlapping words</span>
+          </label>
+        </div>
+      </fieldset>
+
+      <div class="button-row">
+        <button class="btn" type="submit">✦ Generate</button>
+        <button class="btn btn--ghost" type="reset">Reset</button>
+      </div>
+    </div>
+
+    <aside class="preview-card" aria-label="Preview">
+      <div class="preview-card__head">
+        <span class="preview-card__title">Sample preview</span>
+        <span class="mono muted" id="preview-stats" style="font-size:11px;">12 × 12 · 10 words</span>
+      </div>
+      <div class="ws-grid" id="ws-grid" style="grid-template-columns: repeat(12, 1fr);"></div>
+      <div class="ws-words" id="ws-words"></div>
+    </aside>
+  </form>
+  {% endif %}
+</section>
+{% endblock %}
+
+{% block scripts %}
+<script>
+(function () {
+  const themeSel = document.getElementById('theme');
+  const gridInput = document.getElementById('grid-size');
+  const countInput = document.getElementById('word-count-input');
+  const grid = document.getElementById('ws-grid');
+  const wordsEl = document.getElementById('ws-words');
+  const stats = document.getElementById('preview-stats');
+  if (!themeSel || !grid) return;
+
+  function selectedWords() {
+    const opt = themeSel.options[themeSel.selectedIndex];
+    return (opt.dataset.words || '').split(',').filter(Boolean);
+  }
+
+  function renderPreview() {
+    const N = Math.max(5, Math.min(25, parseInt(gridInput.value || '12', 10) || 12));
+    const want = Math.max(1, parseInt(countInput.value || '10', 10) || 10);
+    grid.style.gridTemplateColumns = `repeat(${N}, 1fr)`;
+
+    const words = selectedWords();
+    const grids = words
+      .map(w => w.replace(/^(mr|mrs|ms|miss|dr|sir|dame|lord|lady|master|captain|capt|cpt|professor|prof|saint|st)\.?\s+/gi, '')
+                 .replace(/[^a-z0-9]/gi, '').toUpperCase())
+      .filter(g => g.length > 0);
+
+    const pool = (grids.join('') || 'WORDSMITH').replace(/[^A-Z]/g, '') || 'WORDSMITH';
+
+    let html = '';
+    for (let i = 0; i < N * N; i++) {
+      html += `<span>${pool[(i * 7 + 3) % pool.length]}</span>`;
+    }
+    grid.innerHTML = html;
+
+    const sample = grids.slice(0, Math.min(want, grids.length));
+    wordsEl.innerHTML = sample.map((g, i) =>
+      `<b>${g}</b>${i < sample.length - 1 ? '<span class="sep">·</span>' : ''}`
+    ).join('');
+
+    stats.textContent = `${N} × ${N} · ${sample.length} word${sample.length === 1 ? '' : 's'}`;
+  }
+
+  themeSel.addEventListener('change', renderPreview);
+  gridInput.addEventListener('input', renderPreview);
+  countInput.addEventListener('input', renderPreview);
+  renderPreview();
+})();
+</script>
+{% endblock %}
--- a/app/templates/theme_edit.html
+++ b/app/templates/theme_edit.html
@@ -0,0 +1,161 @@
+{% extends "base.html" %}
+{% block title %}{% if is_new %}New theme{% else %}Edit {{ name }}{% endif %} · Wordsmith{% endblock %}
+{% block content %}
+<section class="container">
+  <div class="crumbs">
+    <a href="/themes">themes</a>
+    <span class="sep">/</span>
+    <span class="here">{% if is_new %}new{% else %}{{ slug }}{% endif %}</span>
+  </div>
+
+  <div class="page-head">
+    <div class="page-head__title">
+      <div class="eyebrow">№ 03 · Workbench</div>
+      <h1>{% if is_new %}New theme{% else %}Edit theme{% endif %}</h1>
+    </div>
+    {% if not is_new %}
+    <div class="page-head__meta">slug · {{ slug }}</div>
+    {% endif %}
+  </div>
+  <hr class="section-rule" />
+
+  {% if errors %}
+  <div class="notice">
+    <strong>Hold on</strong>
+    <ul>
+      {% for e in errors %}<li>{{ e }}</li>{% endfor %}
+    </ul>
+  </div>
+  {% endif %}
+
+  <form method="post"
+        action="{% if is_new %}/themes{% else %}/themes/{{ slug }}{% endif %}">
+
+    <div class="row" style="margin-bottom: var(--s-4);">
+      <label class="field">
+        <span class="field__label">Theme name</span>
+        <input type="text" name="name" id="name" value="{{ name }}" required />
+      </label>
+      <label class="field">
+        <span class="field__label">Slug</span>
+        <input type="text" name="slug" id="slug" value="{{ slug }}"
+               {% if not is_new %}readonly{% endif %} />
+        <span class="field__hint">lowercase letters, digits, hyphens · auto-generated on create</span>
+      </label>
+    </div>
+
+    <div class="workbench">
+      <label class="field">
+        <span class="field__label">Words · one per line</span>
+        <textarea name="words" id="words">{{ words_text }}</textarea>
+      </label>
+
+      <aside class="panel panel--inset" aria-label="Live preview">
+        <div class="preview-card__head" style="margin: -4px 0 12px;">
+          <span class="preview-card__title">Live preview</span>
+          <span class="mono muted" style="font-size:11px;" id="word-count">0 entries</span>
+        </div>
+        <div class="preview-list" id="preview-list">
+          <div class="muted">Type words to see the grid form.</div>
+        </div>
+        <div class="stat-row" id="word-stats">
+          <span>no words yet</span>
+        </div>
+      </aside>
+    </div>
+
+    <div class="bottom-bar">
+      <button class="btn" type="submit">Save</button>
+      <a class="btn btn--ghost" href="/themes">Cancel</a>
+      <span class="spacer"></span>
+      {% if not is_new %}
+      <form method="post" action="/themes/{{ slug }}/delete"
+            onsubmit="return confirm('Delete theme {{ name }}?');">
+        <button class="btn btn--danger" type="submit">⌫ Delete theme</button>
+      </form>
+      {% endif %}
+    </div>
+  </form>
+</section>
+{% endblock %}
+
+{% block scripts %}
+<script>
+(function () {
+  const nameEl = document.getElementById('name');
+  const slugEl = document.getElementById('slug');
+  const wordsEl = document.getElementById('words');
+  const list = document.getElementById('preview-list');
+  const count = document.getElementById('word-count');
+  const stats = document.getElementById('word-stats');
+  const isNew = {{ 'true' if is_new else 'false' }};
+
+  function slugify(s) {
+    return s.toLowerCase().trim().replace(/[^a-z0-9]+/g, '-').replace(/^-|-$/g, '');
+  }
+
+  if (isNew && nameEl && slugEl) {
+    nameEl.addEventListener('input', () => {
+      if (!slugEl.dataset.touched) slugEl.value = slugify(nameEl.value);
+    });
+    slugEl.addEventListener('input', () => { slugEl.dataset.touched = '1'; });
+  }
+
+  let timer = null;
+  async function refresh() {
+    const lines = wordsEl.value.split('\n').map(s => s.trim()).filter(Boolean);
+    if (lines.length === 0) {
+      list.innerHTML = '<div class="muted">Type words to see the grid form.</div>';
+      count.textContent = '0 entries';
+      stats.innerHTML = '<span>no words yet</span>';
+      return;
+    }
+    let data;
+    try {
+      const res = await fetch('/api/normalise', {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({words: lines}),
+      });
+      data = await res.json();
+    } catch (e) {
+      list.innerHTML = '<div class="muted">Preview failed.</div>';
+      return;
+    }
+
+    list.innerHTML = data.map(item => {
+      if (item.skipped) {
+        return `<div class="row skipped"><span class="src">${item.display}</span><span class="dst">(skipped)</span></div>`;
+      }
+      return `<div class="row"><span class="src">${item.display}</span><span class="dst">${item.grid}</span></div>`;
+    }).join('');
+
+    const placeable = data.filter(d => !d.skipped);
+    count.textContent = `${data.length} ${data.length === 1 ? 'entry' : 'entries'}`;
+
+    if (placeable.length) {
+      const lens = placeable.map(d => d.grid.length);
+      const minIdx = lens.indexOf(Math.min(...lens));
+      const maxIdx = lens.indexOf(Math.max(...lens));
+      const min = placeable[minIdx];
+      const max = placeable[maxIdx];
+      const avg = (lens.reduce((a, b) => a + b, 0) / lens.length).toFixed(1);
+      stats.innerHTML = `
+        <span>shortest · ${min.grid} (${min.grid.length})</span>
+        <span>longest · ${max.grid} (${max.grid.length})</span>
+        <span>avg · ${avg}</span>`;
+    } else {
+      stats.innerHTML = '<span>nothing placeable</span>';
+    }
+  }
+
+  if (wordsEl) {
+    wordsEl.addEventListener('input', () => {
+      clearTimeout(timer);
+      timer = setTimeout(refresh, 250);
+    });
+    refresh();
+  }
+})();
+</script>
+{% endblock %}
--- a/app/templates/themes.html
+++ b/app/templates/themes.html
@@ -0,0 +1,57 @@
+{% extends "base.html" %}
+{% block title %}Themes · Wordsmith{% endblock %}
+{% block content %}
+{% set total_words = themes|map(attribute='words')|map('length')|sum %}
+<section class="container">
+  <div class="page-head">
+    <div class="page-head__title">
+      <div class="eyebrow">№ 02 · Ledger</div>
+      <h1>Themes</h1>
+      <div class="muted mono" style="font-size:12px; margin-top:6px;">
+        {{ themes|length }} theme{{ '' if themes|length == 1 else 's' }} · {{ total_words }} word{{ '' if total_words == 1 else 's' }} on file
+      </div>
+    </div>
+    <div>
+      <a class="btn" href="/themes/new">+ New theme</a>
+    </div>
+  </div>
+  <hr class="section-rule" />
+
+  {% if themes %}
+  <div class="panel" style="padding:0; overflow:hidden;">
+    <table class="ledger">
+      <thead>
+        <tr>
+          <th>Name</th>
+          <th>Slug</th>
+          <th class="col-words">Words</th>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        {% for t in themes %}
+        <tr>
+          <td class="col-name">{{ t.name }}</td>
+          <td class="col-slug">{{ t.slug }}</td>
+          <td class="col-words">{{ t.words|length }}</td>
+          <td class="col-actions">
+            <span class="row-actions">
+              <a href="/themes/{{ t.slug }}/edit">edit</a>
+              <form method="post" action="/themes/{{ t.slug }}/delete"
+                    onsubmit="return confirm('Delete theme {{ t.name }}?');">
+                <button type="submit" class="del">delete</button>
+              </form>
+            </span>
+          </td>
+        </tr>
+        {% endfor %}
+      </tbody>
+    </table>
+  </div>
+  {% else %}
+  <div class="panel">
+    <p>No themes yet. <a href="/themes/new">Create the first one</a>.</p>
+  </div>
+  {% endif %}
+</section>
+{% endblock %}
--- a/app/themes.py
+++ b/app/themes.py
@@ -0,0 +1,96 @@
+"""Theme storage: flat JSON files under themes/."""
+
+from __future__ import annotations
+
+import json
+import re
+from dataclasses import dataclass
+from pathlib import Path
+
+THEMES_DIR = Path(__file__).resolve().parent.parent / "themes"
+
+_SLUG_RE = re.compile(r"^[a-z0-9]+(?:-[a-z0-9]+)*$")
+
+
+@dataclass
+class Theme:
+    slug: str
+    name: str
+    words: list[str]
+
+
+class ThemeError(ValueError):
+    """Raised for invalid theme input."""
+
+
+def slugify(name: str) -> str:
+    """Lowercase, replace non-alphanumeric runs with single hyphen, trim."""
+    s = name.lower().strip()
+    s = re.sub(r"[^a-z0-9]+", "-", s)
+    s = s.strip("-")
+    return s
+
+
+def is_valid_slug(slug: str) -> bool:
+    return bool(_SLUG_RE.match(slug))
+
+
+def _path(slug: str) -> Path:
+    if not is_valid_slug(slug):
+        raise ThemeError(f"invalid slug: {slug!r}")
+    return THEMES_DIR / f"{slug}.json"
+
+
+def list_themes() -> list[Theme]:
+    THEMES_DIR.mkdir(parents=True, exist_ok=True)
+    out: list[Theme] = []
+    for path in sorted(THEMES_DIR.glob("*.json")):
+        slug = path.stem
+        if not is_valid_slug(slug):
+            continue
+        try:
+            data = json.loads(path.read_text(encoding="utf-8"))
+            out.append(Theme(slug=slug, name=data.get("name", slug),
+                             words=list(data.get("words", []))))
+        except (json.JSONDecodeError, OSError):
+            continue
+    return out
+
+
+def load_theme(slug: str) -> Theme:
+    path = _path(slug)
+    if not path.exists():
+        raise ThemeError(f"theme not found: {slug!r}")
+    data = json.loads(path.read_text(encoding="utf-8"))
+    return Theme(slug=slug, name=data.get("name", slug),
+                 words=list(data.get("words", [])))
+
+
+def save_theme(slug: str, name: str, words: list[str]) -> Theme:
+    if not is_valid_slug(slug):
+        raise ThemeError(
+            "slug must be lowercase letters, digits, and hyphens only"
+        )
+    name = name.strip()
+    if not name:
+        raise ThemeError("theme name is required")
+    cleaned = [w.strip() for w in words if w.strip()]
+    if not cleaned:
+        raise ThemeError("theme must contain at least one word")
+    THEMES_DIR.mkdir(parents=True, exist_ok=True)
+    path = THEMES_DIR / f"{slug}.json"
+    payload = {"name": name, "words": cleaned}
+    path.write_text(json.dumps(payload, indent=2, ensure_ascii=False) + "\n",
+                    encoding="utf-8")
+    return Theme(slug=slug, name=name, words=cleaned)
+
+
+def delete_theme(slug: str) -> None:
+    path = _path(slug)
+    if path.exists():
+        path.unlink()
+
+
+def parse_words_textarea(blob: str) -> list[str]:
+    """One word per line; ignore blank lines and surrounding whitespace."""
+    return [line.strip() for line in blob.splitlines() if line.strip()]
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -0,0 +1,21 @@
+name: wordsearch
+services:
+  wordsearch:
+    build: .
+    networks:
+      default: null
+    ports:
+      - mode: ingress
+        target: 8000
+        published: "3801"
+        protocol: tcp
+    restart: unless-stopped
+    volumes:
+      - type: bind
+        source: ./themes
+        target: /app/themes
+        bind:
+          create_host_path: true
+networks:
+  default:
+    name: wordsearch_default
--- a/requirements.txt
+++ b/requirements.txt
@@ -0,0 +1,5 @@
+fastapi==0.115.0
+uvicorn[standard]==0.32.0
+jinja2==3.1.4
+reportlab==4.2.5
+python-multipart==0.0.12
--- a/static/style.css
+++ b/static/style.css
@@ -0,0 +1,701 @@
+/* ============================================================
+   Word Search — polished stylesheet
+   Plain CSS, no framework.
+   ============================================================ */
+
+:root {
+  /* Paper palette — newsprint */
+  --paper-bg:    #ece4d3;
+  --paper:       #f6efde;
+  --paper-2:     #fbf6e8;
+  --paper-3:     #f0e8d3;
+
+  /* Ink */
+  --ink:         #1c1a16;
+  --ink-soft:    #6b6356;
+  --ink-faint:   rgba(28, 26, 22, 0.14);
+  --rule-dashed: rgba(28, 26, 22, 0.32);
+
+  /* Accent (red ink) */
+  --accent:      #b3321a;
+  --accent-soft: rgba(179, 50, 26, 0.08);
+
+  /* Type */
+  --display: 'Playfair Display', 'Times New Roman', serif;
+  --body:    'DM Mono', ui-monospace, Menlo, monospace;
+  --mono:    'DM Mono', ui-monospace, Menlo, monospace;
+
+  /* Geometry */
+  --rule:    1.5px solid var(--ink);
+  --rule-2:  1px dashed var(--rule-dashed);
+  --double:  3px double var(--ink);
+
+  /* Spacing scale */
+  --s-1: 4px;
+  --s-2: 8px;
+  --s-3: 12px;
+  --s-4: 16px;
+  --s-5: 24px;
+  --s-6: 32px;
+  --s-7: 48px;
+}
+
+* { box-sizing: border-box; }
+
+html, body {
+  margin: 0;
+  padding: 0;
+  background: var(--paper-bg);
+  color: var(--ink);
+  font-family: var(--body);
+  font-size: 14px;
+  line-height: 1.5;
+  -webkit-font-smoothing: antialiased;
+}
+
+/* Subtle paper grain — faint speckle */
+body {
+  background-image:
+    radial-gradient(rgba(28,26,22,0.025) 1px, transparent 1px),
+    radial-gradient(rgba(28,26,22,0.018) 1px, transparent 1px);
+  background-size: 3px 3px, 7px 7px;
+  background-position: 0 0, 1px 2px;
+}
+
+/* ---------- Typography ---------- */
+h1, h2, h3 { font-family: var(--display); font-weight: 900; letter-spacing: -0.01em; margin: 0; }
+h1 { font-size: 30px; line-height: 1.05; }
+h2 { font-size: 26px; line-height: 1.1; }
+h3 { font-size: 18px; font-weight: 800; line-height: 1.2; }
+
+a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
+a:hover { text-decoration-thickness: 2px; }
+
+.eyebrow {
+  font-family: var(--mono);
+  font-size: 11px;
+  letter-spacing: 0.18em;
+  text-transform: uppercase;
+  color: var(--ink-soft);
+}
+
+.muted { color: var(--ink-soft); }
+.mono  { font-family: var(--mono); }
+
+/* ---------- Layout ---------- */
+.shell {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+}
+
+.container {
+  width: 100%;
+  max-width: 1100px;
+  margin: 0 auto;
+  padding: 0 var(--s-6);
+}
+
+main {
+  padding: var(--s-7) 0;
+  flex: 1;
+}
+
+/* ---------- Header (Stamp + Tabs) ---------- */
+.site-header {
+  background: var(--paper);
+  border-bottom: var(--rule);
+  position: sticky;
+  top: 0;
+  z-index: 10;
+}
+
+.site-header__inner {
+  max-width: 1100px;
+  margin: 0 auto;
+  padding: var(--s-3) var(--s-6);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--s-4);
+}
+
+.brand {
+  display: flex;
+  align-items: center;
+  gap: var(--s-3);
+  text-decoration: none;
+  color: var(--ink);
+}
+
+.brand__mark {
+  width: 38px;
+  height: 38px;
+  border: 2px solid var(--ink);
+  background: var(--ink);
+  color: var(--paper);
+  display: grid;
+  place-items: center;
+  font-family: var(--display);
+  font-weight: 900;
+  font-size: 22px;
+  flex: 0 0 auto;
+}
+
+.brand__name {
+  display: block;
+  font-family: var(--display);
+  font-weight: 800;
+  font-size: 19px;
+  line-height: 1;
+}
+
+.brand__tagline {
+  display: block;
+  font-family: var(--mono);
+  font-size: 10px;
+  color: var(--ink-soft);
+  letter-spacing: 0.08em;
+  margin-top: 3px;
+}
+
+.tabs {
+  display: flex;
+  gap: 0;
+  font-family: var(--mono);
+  font-size: 13px;
+}
+
+.tabs a {
+  padding: 8px 18px;
+  border: var(--rule);
+  color: var(--ink);
+  background: var(--paper);
+  text-decoration: none;
+  font-weight: 500;
+}
+
+.tabs a + a { border-left: none; }
+
+.tabs a:hover { background: var(--paper-3); }
+
+.tabs a[aria-current="page"] {
+  background: var(--ink);
+  color: var(--paper);
+}
+
+/* ---------- Page heading ---------- */
+.page-head {
+  display: flex;
+  align-items: flex-end;
+  justify-content: space-between;
+  gap: var(--s-4);
+  flex-wrap: wrap;
+  margin-bottom: var(--s-4);
+}
+
+.page-head__title h1 { margin-top: 4px; }
+.page-head__meta {
+  font-family: var(--mono);
+  font-size: 11px;
+  color: var(--ink-soft);
+}
+
+.section-rule {
+  border: 0;
+  border-top: var(--double);
+  margin: 0 0 var(--s-6);
+}
+
+/* ---------- Cards / panels ---------- */
+.panel {
+  background: var(--paper);
+  border: var(--rule);
+  padding: var(--s-5);
+}
+
+.panel--inset {
+  background: var(--paper-2);
+}
+
+/* ---------- Notices (errors / warnings) ---------- */
+.notice {
+  background: var(--paper);
+  border: var(--rule);
+  border-left: 4px solid var(--accent);
+  padding: var(--s-3) var(--s-4);
+  margin-bottom: var(--s-4);
+  font-family: var(--mono);
+  font-size: 13px;
+}
+.notice strong {
+  display: block;
+  font-family: var(--mono);
+  font-size: 11px;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: var(--ink-soft);
+  margin-bottom: 4px;
+}
+.notice ul { margin: 0; padding-left: 18px; }
+.notice--warn { border-left-color: #c08a00; }
+
+/* ---------- Form controls ---------- */
+.form-grid {
+  display: grid;
+  gap: var(--s-4);
+}
+
+.field {
+  display: block;
+}
+
+.field__label {
+  display: block;
+  font-family: var(--mono);
+  font-size: 11px;
+  letter-spacing: 0.1em;
+  text-transform: uppercase;
+  color: var(--ink-soft);
+  margin-bottom: 6px;
+  font-weight: 500;
+}
+
+.field__hint {
+  display: block;
+  font-family: var(--mono);
+  font-size: 11px;
+  color: var(--ink-soft);
+  margin-top: 6px;
+}
+
+input[type="text"],
+input[type="number"],
+input[type="email"],
+select,
+textarea {
+  width: 100%;
+  border: var(--rule);
+  background: var(--paper-2);
+  color: var(--ink);
+  padding: 10px 12px;
+  font-family: var(--mono);
+  font-size: 14px;
+  line-height: 1.4;
+  border-radius: 0;
+  appearance: none;
+  -webkit-appearance: none;
+  outline: none;
+  transition: background 0.12s, box-shadow 0.12s;
+}
+
+input[type="text"]:focus,
+input[type="number"]:focus,
+select:focus,
+textarea:focus {
+  background: var(--paper);
+  box-shadow: 0 0 0 3px var(--ink);
+  outline-offset: 2px;
+}
+
+input[readonly] { background: var(--paper-3); cursor: not-allowed; }
+
+textarea {
+  min-height: 240px;
+  resize: vertical;
+  line-height: 1.7;
+}
+
+select {
+  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='%231c1a16'><path d='M0 0l6 8 6-8z'/></svg>");
+  background-repeat: no-repeat;
+  background-position: right 14px center;
+  background-size: 10px;
+  padding-right: 36px;
+  cursor: pointer;
+}
+
+.row { display: flex; gap: var(--s-3); }
+.row > * { flex: 1; min-width: 0; }
+
+/* Checkboxes — custom square ink boxes */
+.check {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  cursor: pointer;
+  font-family: var(--mono);
+  font-size: 13px;
+  user-select: none;
+}
+
+.check input {
+  appearance: none;
+  -webkit-appearance: none;
+  width: 16px;
+  height: 16px;
+  border: 1.5px solid var(--ink);
+  background: var(--paper-2);
+  display: inline-block;
+  position: relative;
+  cursor: pointer;
+  margin: 0;
+  flex: 0 0 auto;
+}
+
+.check input:checked {
+  background: var(--ink);
+}
+
+.check input:checked::after {
+  content: "✓";
+  position: absolute;
+  inset: 0;
+  color: var(--paper);
+  font-size: 12px;
+  font-family: var(--display);
+  font-weight: 900;
+  line-height: 14px;
+  text-align: center;
+}
+
+.check input:disabled {
+  cursor: not-allowed;
+  opacity: 0.55;
+}
+
+.check input:focus-visible {
+  outline: 2px solid var(--ink);
+  outline-offset: 2px;
+}
+
+.check--locked { opacity: 0.7; }
+.check--locked .lock {
+  font-family: var(--mono);
+  font-size: 10px;
+  color: var(--ink-soft);
+  letter-spacing: 0.08em;
+  margin-left: auto;
+}
+
+/* ---------- Buttons ---------- */
+.btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 8px;
+  padding: 10px 18px;
+  font-family: var(--mono);
+  font-size: 13px;
+  font-weight: 600;
+  letter-spacing: 0.02em;
+  border: var(--rule);
+  background: var(--ink);
+  color: var(--paper);
+  cursor: pointer;
+  text-decoration: none;
+  transition: transform 0.05s ease, background 0.12s;
+}
+
+.btn:hover { background: #000; }
+.btn:active { transform: translateY(1px); }
+.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
+
+.btn--ghost {
+  background: var(--paper);
+  color: var(--ink);
+}
+.btn--ghost:hover { background: var(--paper-3); }
+
+.btn--danger {
+  background: var(--paper);
+  color: var(--accent);
+  border-color: var(--accent);
+}
+.btn--danger:hover { background: var(--accent); color: var(--paper); }
+
+.btn--sm { padding: 6px 12px; font-size: 12px; }
+
+/* Inline link-style action (for table rows) */
+.row-actions {
+  display: inline-flex;
+  gap: 14px;
+  font-family: var(--mono);
+  font-size: 12px;
+}
+.row-actions a,
+.row-actions button {
+  color: var(--ink);
+  background: none;
+  border: none;
+  padding: 0;
+  font: inherit;
+  cursor: pointer;
+  text-decoration: underline;
+  text-underline-offset: 2px;
+}
+.row-actions a.del,
+.row-actions button.del { color: var(--accent); }
+.row-actions form { display: inline; margin: 0; }
+
+/* ---------- Tables (Themes ledger) ---------- */
+.ledger {
+  width: 100%;
+  border-collapse: collapse;
+  font-family: var(--mono);
+  font-size: 13px;
+}
+
+.ledger thead th {
+  text-align: left;
+  font-family: var(--mono);
+  font-size: 11px;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: var(--ink-soft);
+  font-weight: 600;
+  padding: 12px 10px;
+  border-bottom: 1.5px solid var(--ink);
+  background: var(--paper-2);
+}
+
+.ledger tbody tr {
+  border-bottom: var(--rule-2);
+  transition: background 0.1s;
+}
+
+.ledger tbody tr:hover {
+  background: var(--paper-2);
+}
+
+.ledger tbody td {
+  padding: 14px 10px;
+  vertical-align: middle;
+}
+
+.ledger .col-name {
+  font-family: var(--display);
+  font-size: 16px;
+  font-weight: 700;
+}
+
+.ledger .col-slug {
+  color: var(--ink-soft);
+}
+
+.ledger .col-words,
+.ledger .col-num {
+  text-align: right;
+  font-feature-settings: "tnum" 1;
+}
+
+.ledger .col-actions {
+  text-align: right;
+  width: 1%;
+  white-space: nowrap;
+}
+
+/* ---------- Studio (Generate puzzle) split layout ---------- */
+.studio {
+  display: grid;
+  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
+  gap: var(--s-6);
+  align-items: start;
+}
+
+@media (max-width: 880px) {
+  .studio { grid-template-columns: 1fr; }
+}
+
+.fieldset {
+  border: var(--rule);
+  background: var(--paper);
+  padding: var(--s-4) var(--s-5) var(--s-5);
+  margin: 0;
+}
+
+.fieldset > legend {
+  font-family: var(--mono);
+  font-size: 11px;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: var(--ink-soft);
+  padding: 0 8px;
+  background: var(--paper-bg);
+  margin-left: -4px;
+}
+
+.directions-grid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 10px var(--s-4);
+}
+
+.fieldset__divider {
+  margin-top: 14px;
+  padding-top: 12px;
+  border-top: 1px dashed var(--ink-faint);
+}
+
+.button-row {
+  display: flex;
+  gap: 10px;
+  margin-top: 4px;
+}
+
+.preview-card {
+  background: var(--paper);
+  border: var(--rule);
+  padding: var(--s-4);
+  position: sticky;
+  top: 96px;
+}
+
+.preview-card__head {
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  margin-bottom: var(--s-3);
+  padding-bottom: var(--s-3);
+  border-bottom: var(--rule-2);
+}
+
+.preview-card__title {
+  font-family: var(--display);
+  font-weight: 800;
+  font-size: 16px;
+}
+
+/* Word search grid (decorative on Generate, real on Result) */
+.ws-grid {
+  display: grid;
+  gap: 1px;
+  background: var(--ink);
+  border: 1.5px solid var(--ink);
+  aspect-ratio: 1 / 1;
+}
+
+.ws-grid > span {
+  background: var(--paper-2);
+  display: grid;
+  place-items: center;
+  font-family: var(--mono);
+  font-weight: 700;
+  font-size: clamp(10px, 1.4vw, 14px);
+  color: var(--ink);
+}
+
+.ws-words {
+  margin-top: var(--s-3);
+  display: flex;
+  flex-wrap: wrap;
+  gap: 4px 10px;
+  font-family: var(--mono);
+  font-size: 11px;
+  color: var(--ink-soft);
+}
+
+.ws-words b {
+  color: var(--ink);
+  font-weight: 600;
+}
+
+.ws-words .sep { color: var(--ink-faint); }
+
+/* ---------- Result page ---------- */
+.result-grid {
+  margin: 0 auto;
+  max-width: 640px;
+}
+.result-grid .ws-grid > span {
+  font-size: clamp(11px, 1.6vw, 18px);
+}
+
+.word-list {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
+  gap: 4px 16px;
+  list-style: none;
+  padding: 0;
+  margin: var(--s-4) 0 0;
+  font-family: var(--mono);
+  font-size: 13px;
+}
+.word-list li b { font-weight: 600; }
+.word-list li .pref { color: var(--ink-soft); margin-left: 4px; font-size: 11px; }
+
+/* ---------- Edit theme workbench ---------- */
+.crumbs {
+  font-family: var(--mono);
+  font-size: 12px;
+  color: var(--ink-soft);
+  margin-bottom: 4px;
+}
+
+.crumbs a { color: var(--ink-soft); text-decoration: none; }
+.crumbs a:hover { color: var(--ink); }
+.crumbs .sep { margin: 0 6px; }
+.crumbs .here { color: var(--ink); }
+
+.workbench {
+  display: grid;
+  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
+  gap: var(--s-5);
+}
+
+@media (max-width: 880px) {
+  .workbench { grid-template-columns: 1fr; }
+}
+
+.preview-list {
+  font-family: var(--mono);
+  font-size: 13px;
+  line-height: 1.85;
+  max-height: 22rem;
+  overflow: auto;
+}
+
+.preview-list .row {
+  display: flex;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 2px 0;
+  border-bottom: 1px dashed var(--ink-faint);
+}
+
+.preview-list .src { color: var(--ink-soft); }
+.preview-list .dst { color: var(--ink); font-weight: 600; }
+.preview-list .row.skipped .dst { color: var(--accent); font-weight: 500; font-style: italic; }
+
+.stat-row {
+  display: flex;
+  justify-content: space-between;
+  font-family: var(--mono);
+  font-size: 11px;
+  color: var(--ink-soft);
+  margin-top: var(--s-3);
+  padding-top: var(--s-3);
+  border-top: 1px dashed var(--ink-faint);
+}
+
+.bottom-bar {
+  display: flex;
+  align-items: center;
+  gap: var(--s-3);
+  margin-top: var(--s-5);
+  padding-top: var(--s-4);
+  border-top: var(--rule-2);
+}
+
+.bottom-bar .spacer { flex: 1; }
+.bottom-bar form { display: inline; margin: 0; }
+
+/* ---------- Footer ---------- */
+.site-footer {
+  border-top: var(--double);
+  padding: var(--s-4) 0;
+  font-family: var(--mono);
+  font-size: 11px;
+  color: var(--ink-soft);
+  text-align: center;
+  letter-spacing: 0.08em;
+}
--- a/themes/common-birds.json
+++ b/themes/common-birds.json
@@ -0,0 +1,33 @@
+{
+  "name": "Common Birds",
+  "words": [
+    "Robin",
+    "Sparrow",
+    "Crow",
+    "Pigeon",
+    "Dove",
+    "Magpie",
+    "Starling",
+    "Finch",
+    "Swallow",
+    "Wren",
+    "Blackbird",
+    "Jay",
+    "Owl",
+    "Eagle",
+    "Hawk",
+    "Falcon",
+    "Kestrel",
+    "Buzzard",
+    "Vulture",
+    "Heron",
+    "Stork",
+    "Swan",
+    "Goose",
+    "Duck",
+    "Woodpecker",
+    "Kingfisher",
+    "Raven",
+    "Osprey"
+  ]
+}
--- a/themes/farm-animals.json
+++ b/themes/farm-animals.json
@@ -0,0 +1,31 @@
+{
+  "name": "Farm Animals",
+  "words": [
+    "Cow",
+    "Pig",
+    "Hen",
+    "Cat",
+    "Dog",
+    "Goat",
+    "Duck",
+    "Goose",
+    "Sheep",
+    "Horse",
+    "Donkey",
+    "Rabbit",
+    "Turkey",
+    "Rooster",
+    "Lamb",
+    "Calf",
+    "Piglet",
+    "Chicken",
+    "Foal",
+    "Kid",
+    "Pony",
+    "Llama",
+    "Alpaca",
+    "Mule",
+    "Bull",
+    "Stallion"
+  ]
+}
--- a/themes/mr-men.json
+++ b/themes/mr-men.json
@@ -0,0 +1,31 @@
+{
+  "name": "Mr Men Characters",
+  "words": [
+    "Mr Tickle",
+    "Mr Happy",
+    "Mr Bump",
+    "Mr Strong",
+    "Mr Tall",
+    "Mr Small",
+    "Mr Greedy",
+    "Mr Lazy",
+    "Mr Funny",
+    "Mr Noisy",
+    "Mr Quiet",
+    "Mr Fussy",
+    "Mr Grumpy",
+    "Mr Silly",
+    "Mr Sneeze",
+    "Mr Forgetful",
+    "Mr Worry",
+    "Mr Daydream",
+    "Little Miss Sunshine",
+    "Little Miss Naughty",
+    "Little Miss Tiny",
+    "Little Miss Magic",
+    "Little Miss Splendid",
+    "Little Miss Chatterbox",
+    "Little Miss Trouble",
+    "Little Miss Curious"
+  ]
+}
--- a/themes/precious-stones.json
+++ b/themes/precious-stones.json
@@ -0,0 +1,32 @@
+{
+  "name": "Precious Stones",
+  "words": [
+    "Diamond",
+    "Ruby",
+    "Sapphire",
+    "Emerald",
+    "Topaz",
+    "Opal",
+    "Pearl",
+    "Amethyst",
+    "Garnet",
+    "Jade",
+    "Onyx",
+    "Quartz",
+    "Citrine",
+    "Turquoise",
+    "Aquamarine",
+    "Peridot",
+    "Tanzanite",
+    "Lapis",
+    "Moonstone",
+    "Tourmaline",
+    "Coral",
+    "Amber",
+    "Obsidian",
+    "Agate",
+    "Bloodstone",
+    "Zircon",
+    "Spinel"
+  ]
+}
--- a/themes/science-biology.json
+++ b/themes/science-biology.json
@@ -0,0 +1,33 @@
+{
+  "name": "Science: Biology",
+  "words": [
+    "Cell",
+    "Nucleus",
+    "Membrane",
+    "Bacteria",
+    "Virus",
+    "Fungus",
+    "Algae",
+    "Tissue",
+    "Organ",
+    "Skeleton",
+    "Muscle",
+    "Neuron",
+    "Blood",
+    "Heart",
+    "Lung",
+    "Brain",
+    "Kidney",
+    "Liver",
+    "Photosynthesis",
+    "Respiration",
+    "Digestion",
+    "Evolution",
+    "Genetics",
+    "Chromosome",
+    "Protein",
+    "Enzyme",
+    "Ecosystem",
+    "Habitat"
+  ]
+}
--- a/themes/science-chemistry.json
+++ b/themes/science-chemistry.json
@@ -0,0 +1,33 @@
+{
+  "name": "Science: Chemistry",
+  "words": [
+    "Atom",
+    "Molecule",
+    "Element",
+    "Compound",
+    "Mixture",
+    "Solution",
+    "Solvent",
+    "Reaction",
+    "Acid",
+    "Base",
+    "Alkali",
+    "Crystal",
+    "Liquid",
+    "Solid",
+    "Plasma",
+    "Hydrogen",
+    "Oxygen",
+    "Carbon",
+    "Nitrogen",
+    "Helium",
+    "Sulphur",
+    "Iron",
+    "Copper",
+    "Sodium",
+    "Calcium",
+    "Catalyst",
+    "Bond",
+    "Water"
+  ]
+}
--- a/themes/science-physics.json
+++ b/themes/science-physics.json
@@ -0,0 +1,34 @@
+{
+  "name": "Science: Physics",
+  "words": [
+    "Force",
+    "Motion",
+    "Speed",
+    "Velocity",
+    "Friction",
+    "Gravity",
+    "Magnetism",
+    "Electricity",
+    "Energy",
+    "Heat",
+    "Light",
+    "Sound",
+    "Wave",
+    "Pressure",
+    "Mass",
+    "Weight",
+    "Inertia",
+    "Momentum",
+    "Acceleration",
+    "Temperature",
+    "Voltage",
+    "Current",
+    "Circuit",
+    "Magnet",
+    "Power",
+    "Frequency",
+    "Reflection",
+    "Refraction",
+    "Fire"
+  ]
+}
--- a/themes/sea-creatures.json
+++ b/themes/sea-creatures.json
@@ -0,0 +1,31 @@
+{
+  "name": "Sea Creatures",
+  "words": [
+    "Crab",
+    "Eel",
+    "Squid",
+    "Shark",
+    "Whale",
+    "Dolphin",
+    "Octopus",
+    "Lobster",
+    "Starfish",
+    "Jellyfish",
+    "Seahorse",
+    "Stingray",
+    "Turtle",
+    "Clownfish",
+    "Anglerfish",
+    "Barracuda",
+    "Cuttlefish",
+    "Manta",
+    "Manatee",
+    "Narwhal",
+    "Orca",
+    "Pufferfish",
+    "Seal",
+    "Walrus",
+    "Coral",
+    "Plankton"
+  ]
+}
--- a/themes/superheroes.json
+++ b/themes/superheroes.json
@@ -0,0 +1,32 @@
+{
+  "name": "Superheroes",
+  "words": [
+    "Spider-Man",
+    "Iron Man",
+    "Captain America",
+    "Thor",
+    "Hulk",
+    "Black Widow",
+    "Hawkeye",
+    "Black Panther",
+    "Doctor Strange",
+    "Ant-Man",
+    "Wasp",
+    "Falcon",
+    "Vision",
+    "Scarlet Witch",
+    "Wolverine",
+    "Storm",
+    "Cyclops",
+    "Rogue",
+    "Nightcrawler",
+    "Daredevil",
+    "Punisher",
+    "Batman",
+    "Superman",
+    "Wonder Woman",
+    "Flash",
+    "Aquaman",
+    "Green Lantern"
+  ]
+}
--- a/themes/transformers.json
+++ b/themes/transformers.json
@@ -0,0 +1,31 @@
+{
+  "name": "Transformers",
+  "words": [
+    "Optimus Prime",
+    "Bumblebee",
+    "Megatron",
+    "Starscream",
+    "Soundwave",
+    "Ironhide",
+    "Ratchet",
+    "Jazz",
+    "Wheeljack",
+    "Bulkhead",
+    "Arcee",
+    "Sideswipe",
+    "Sunstreaker",
+    "Hot Rod",
+    "Ultra Magnus",
+    "Grimlock",
+    "Shockwave",
+    "Devastator",
+    "Galvatron",
+    "Thundercracker",
+    "Skywarp",
+    "Blitzwing",
+    "Laserbeak",
+    "Cliffjumper",
+    "Prowl",
+    "Blaster"
+  ]
+}
--- a/themes/villains.json
+++ b/themes/villains.json
@@ -0,0 +1,31 @@
+{
+  "name": "Villains",
+  "words": [
+    "Joker",
+    "Penguin",
+    "Riddler",
+    "Bane",
+    "Scarecrow",
+    "Catwoman",
+    "Two-Face",
+    "Loki",
+    "Thanos",
+    "Ultron",
+    "Magneto",
+    "Mystique",
+    "Sabretooth",
+    "Venom",
+    "Carnage",
+    "Green Goblin",
+    "Doc Ock",
+    "Vulture",
+    "Mysterio",
+    "Kingpin",
+    "Doctor Doom",
+    "Galactus",
+    "Red Skull",
+    "Sandman",
+    "Electro",
+    "Lizard"
+  ]
+}
--- a/themes/wild-animals.json
+++ b/themes/wild-animals.json
@@ -0,0 +1,33 @@
+{
+  "name": "Wild Animals",
+  "words": [
+    "Tiger",
+    "Lion",
+    "Elephant",
+    "Giraffe",
+    "Zebra",
+    "Cheetah",
+    "Leopard",
+    "Hippo",
+    "Rhino",
+    "Gorilla",
+    "Chimpanzee",
+    "Kangaroo",
+    "Koala",
+    "Panda",
+    "Wolf",
+    "Bear",
+    "Fox",
+    "Deer",
+    "Moose",
+    "Bison",
+    "Buffalo",
+    "Hyena",
+    "Jaguar",
+    "Crocodile",
+    "Anaconda",
+    "Sloth",
+    "Lemur",
+    "Otter"
+  ]
+}
--- a/wordsearch-specs.md
+++ b/wordsearch-specs.md
@@ -0,0 +1,369 @@
+# Word Search Puzzle Generator — Spec
+
+## Overview
+A self-hosted web app that generates printable word search puzzles for kids
+(and grownups). Themed word lists are managed through the UI and stored as
+JSON files on disk. Every puzzle is configured explicitly per generation —
+no sticky difficulty presets.
+
+## Tech Stack
+- **Python 3.14+**
+- **FastAPI** — web framework
+- **Jinja2** — server-rendered HTML templates (no JS framework, no build step)
+- **reportlab** — PDF generation
+- **uvicorn** — ASGI server
+- **Vanilla JS** — minimal, only for the theme editor (textarea + fetch)
+- **Storage:** JSON files on disk under `themes/`. No database.
+
+Single language, single process, no build pipeline, no DB.
+
+## Deployment
+- Dockerfile + `docker-compose.yml`
+- Single container, single port (default `8000`)
+- Mount `./themes` as a volume
+- Behind Pangolin/Traefik if exposing on a subdomain; otherwise hit the LXC IP
+
+## Directory Layout
+```
+wordsearch/
+├── app/
+│   ├── main.py            # FastAPI routes
+│   ├── generator.py       # Grid building + word placement
+│   ├── normaliser.py      # Word normalisation + prefix stripping
+│   ├── pdf.py             # PDF rendering (reportlab)
+│   ├── themes.py          # Load / save / list theme JSON files
+│   └── templates/
+│       ├── base.html
+│       ├── index.html     # Generate form
+│       ├── themes.html    # Theme list
+│       └── theme_edit.html
+├── themes/                # JSON theme files (mounted volume)
+├── static/style.css
+├── requirements.txt
+├── Dockerfile
+└── docker-compose.yml
+```
+
+## Web UI
+
+### `/` — Generate Puzzle
+```
+Theme:        [ Mr Men Characters    ▾ ]
+
+Grid size:    [ 12 ]    (5 – 25)
+Words:        [ 10 ]    (1 – 30)
+Min length:   [ 3 ]
+Max length:   [ 12 ]    (clamped to grid size)
+
+Title:        [                        ]   (optional, overrides theme name)
+
+Directions:
+  ☑ Horizontal (→)        — always on, locked
+  ☑ Vertical (↓)          — always on, locked
+  ☐ Diagonal (↘ ↗)
+  ☐ Reversed (← ↑ ↖ ↙)
+
+☐ Allow overlapping words
+
+[ Generate ]
+```
+
+- All optional toggles default **off** on every page load — no sticky state.
+- "Generate" → POSTs the form, streams the PDF straight back as a download
+  (`Content-Disposition: attachment; filename="<slug>_<timestamp>.pdf"`).
+- The server keeps no copy on disk; the browser is the only place the PDF
+  lives.
+
+### `/themes` — Theme List
+- Table of existing themes: name, slug, word count, edit/delete buttons
+- "New theme" button → `/themes/new`
+
+### `/themes/new` and `/themes/{slug}/edit` — Theme Editor
+```
+Theme name:   [                        ]   (display name, e.g. "Sea Creatures")
+Slug:         [                        ]   (filename; auto-generated on create, locked on edit)
+
+Words (one per line):
+┌────────────────────────────────────────┐
+│ Mr Tickle                              │
+│ Mr Happy                               │
+│ Little Miss Sunshine                   │
+│ ...                                    │
+└────────────────────────────────────────┘
+
+Live preview:
+  Mr Tickle              → TICKLE
+  Mr Happy               → HAPPY
+  Little Miss Sunshine   → LITTLEMISSSUNSHINE
+
+[ Save ]   [ Delete ]
+```
+
+- The live preview shows what each word will look like in the grid after
+  normalisation. Updates on textarea change (debounced).
+- Save writes `themes/<slug>.json`. Delete confirms then removes.
+
+### Auth
+None. Homelab use. Add HTTP basic auth via FastAPI middleware if exposed
+publicly later.
+
+## Routes
+| Method | Path                       | Purpose                                |
+|--------|----------------------------|----------------------------------------|
+| GET    | `/`                        | Generate form                          |
+| POST   | `/generate`                | Build puzzle, return PDF download      |
+| GET    | `/themes`                  | List themes                            |
+| GET    | `/themes/new`              | New theme form                         |
+| GET    | `/themes/{slug}/edit`      | Edit theme form                        |
+| POST   | `/themes`                  | Create theme                           |
+| POST   | `/themes/{slug}`           | Update theme                           |
+| POST   | `/themes/{slug}/delete`    | Delete theme                           |
+| GET    | `/api/themes`              | JSON list of themes (dropdown source)  |
+| POST   | `/api/normalise`           | Preview normalisation for a list of    |
+|        |                            | words (used by the editor live preview)|
+
+## Word Normalisation
+
+For every input word, the generator produces two forms:
+
+- **Display form** — original string, untouched. Goes on the PDF word list.
+- **Grid form** — what gets placed in the grid.
+
+### Grid form rules
+1. Strip any **leading prefix tokens** (case-insensitive, with or without
+   trailing dot). Stripping is **token-based**, not substring — `"Misty"`
+   does not match `"Miss"`.
+2. Uppercase the result.
+3. Strip all whitespace and punctuation.
+
+### Stripped prefixes
+A constant in `normaliser.py`:
+```python
+PREFIXES = {
+    "mr", "mrs", "ms", "miss",
+    "dr", "sir", "dame", "lord", "lady", "master",
+    "captain", "capt", "cpt",
+    "professor", "prof",
+    "saint", "st",
+}
+```
+
+### Examples
+| Input                   | Display form          | Grid form           |
+|-------------------------|-----------------------|---------------------|
+| `Mr Tickle`             | `Mr Tickle`           | `TICKLE`            |
+| `Mr. Bump`              | `Mr. Bump`            | `BUMP`              |
+| `Little Miss Sunshine`  | `Little Miss Sunshine`| `LITTLEMISSSUNSHINE`|
+| `Dr Octopus`            | `Dr Octopus`          | `OCTOPUS`           |
+| `Sir Lancelot`          | `Sir Lancelot`        | `LANCELOT`          |
+| `Misty`                 | `Misty`               | `MISTY`             |
+| `cucumber`              | `cucumber`            | `CUCUMBER`          |
+| `Captain America`       | `Captain America`     | `AMERICA`           |
+
+### Prefix-only edge cases
+- Multiple consecutive prefixes get stripped: `"Mr Dr Strange"` → `STRANGE`.
+- Word that is **only** a prefix: `"Mr"` → keep as `MR`, log a warning to
+  stderr (probably a theme typo).
+- After stripping, if grid form is empty, skip the word and warn.
+
+## Word Selection
+1. Load theme word list.
+2. Compute grid form for each word.
+3. Filter by length: `min_length ≤ len(grid_form) ≤ min(max_length, grid_size)`.
+4. Shuffle.
+5. Place words one by one until either:
+   - the requested word count is reached, or
+   - the filtered list is exhausted.
+6. If fewer words placed than requested, generate the puzzle anyway and log
+   a stderr warning — there is no result page, so warnings aren't surfaced
+   to the user; they have to verify the dropdown's word count matches their
+   target before generating.
+
+### Length filter validation
+If the filter matches **fewer** words than requested, generate with what's
+available and warn (e.g. "asked for 10 words; only 4 in the theme matched
+your length filter"). Don't block — the user might genuinely want a sparse
+puzzle.
+
+## Word Placement Rules
+
+### Direction set
+The active directions are computed from the toggles:
+
+```
+base = { → , ↓ }                              # always on
+
+if diagonal_toggle:
+    base |= { ↘ , ↗ }
+
+if reversed_toggle:
+    base |= { reverse(d) for d in base }      # add reversal of everything in base
+```
+
+So:
+| Diag | Rev | Active directions |
+|------|-----|-------------------|
+| ☐    | ☐   | → ↓               |
+| ☑    | ☐   | → ↓ ↘ ↗           |
+| ☐    | ☑   | → ↓ ← ↑           |
+| ☑    | ☑   | → ↓ ↘ ↗ ← ↑ ↖ ↙ (all 8) |
+
+Direction vectors `(Δrow, Δcol)`:
+
+| Symbol | Δrow | Δcol |
+|--------|------|------|
+| →      |  0   | +1   |
+| ↓      | +1   |  0   |
+| ↘      | +1   | +1   |
+| ↗      | −1   | +1   |
+| ←      |  0   | −1   |
+| ↑      | −1   |  0   |
+| ↖      | −1   | −1   |
+| ↙      | +1   | −1   |
+
+### Placement algorithm
+For each word:
+1. Pick a random direction from the active set.
+2. Pick a random valid starting cell such that the entire word fits within
+   the grid (compute bounds from word length + direction vector).
+3. Check collision against already-placed words:
+   - If overlap toggle is **off**: every cell the word would occupy must be
+     currently empty.
+   - If overlap toggle is **on**: every cell must either be empty OR contain
+     the same letter the word would place there (letter-sharing intersections).
+4. If the placement is valid, commit it. Otherwise retry up to 200 attempts
+   per word (re-rolling direction + start each time), then skip with a
+   warning.
+
+### Grid fill
+After all words are placed, fill remaining empty cells with random uppercase
+A–Z letters. All letters are uppercase.
+
+## Theme File Format
+`themes/<slug>.json`:
+```json
+{
+  "name": "Mr Men Characters",
+  "words": [
+    "Mr Tickle",
+    "Mr Happy",
+    "Mr Bump",
+    "Little Miss Sunshine",
+    "Mr Strong",
+    "Mr Tall",
+    "Mr Small"
+  ]
+}
+```
+
+- `name` — human-readable, shown in dropdown and on PDF.
+- `words` — list of strings, one per line in the editor textarea.
+
+### Theme curation guidance (in README)
+- Aim for **20–30 words per theme** with a healthy spread of lengths
+  (some short, some long) so length filters give useful results across
+  age groups.
+- Avoid hyphens and apostrophes when possible — they get stripped.
+  `"Spider-Man"` → `SPIDERMAN` is fine, but `"don't"` → `DONT` may surprise.
+
+## PDF Layout
+A4 portrait, single page, plain.
+
+### Top
+- Title (theme name or override), centred, large.
+
+### Middle: Grid
+- Centred, monospace font, generous letter spacing.
+- No cell borders (cleaner look, easier to scan).
+- Sized so a 12×12 grid is comfortable to read; scales down for larger grids.
+
+### Bottom: Word list
+- Heading: "Find these words"
+- 2–4 columns depending on word count.
+- Each entry rendered as:
+  - `GRIDFORM` (bold, uppercase) followed by ` (original prefix tokens)` in
+    lighter weight — only if the word had a stripped prefix.
+  - Words with no prefix render bare: just `GRIDFORM` in bold uppercase.
+- Examples in the rendered list:
+  ```
+  TICKLE (Mr)        BUMP (Mr)
+  HAPPY (Mr)         STRONG (Mr)
+  SUNSHINE (Little Miss)
+  CUCUMBER           TOMATO
+  AMERICA (Captain)
+  ```
+
+### Active options subtitle
+Directly under the title, in small uppercase letter-spaced grey text, list
+any *extra* directions or modes that are enabled beyond the always-on
+horizontal + vertical baseline. The labels render only when at least one
+of `diagonal`, `reversed`, or `allow_overlap` is on:
+
+```
+DIAGONAL  ·  REVERSED  ·  OVERLAPPING
+```
+
+If none of them are enabled, render nothing — no empty line, no spacing.
+
+### No footer
+Page stays clean: no timestamp, no branding, no toggle state in the footer.
+(The download filename carries the timestamp.)
+
+### No answer key
+v1 ships puzzle-only. Solution PDF is a future enhancement.
+
+## Initial Themes to Ship
+Pre-populate `themes/` with starter files (20–30 words each, varied length):
+- `mr-men.json`
+- `sea-creatures.json`
+- `superheroes.json`
+- `farm-animals.json`
+- `villains.json`
+- `transformers.json`
+- `wild-animals.json`
+- `precious-stones.json`
+- `common-birds.json` — songbirds plus raptors (owl, eagle, hawk, falcon, etc.)
+- `science-physics.json` — forces, energy, motion, electricity
+- `science-chemistry.json` — atoms, molecules, elements, reactions
+- `science-biology.json` — cells, organs, microbes, ecology
+
+## Dockerfile
+```dockerfile
+FROM python:3.14-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY app/ ./app/
+COPY static/ ./static/
+EXPOSE 8000
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+```
+
+## docker-compose.yml
+```yaml
+services:
+  wordsearch:
+    build: .
+    ports:
+      - "8000:8000"
+    volumes:
+      - ./themes:/app/themes
+    restart: unless-stopped
+```
+
+## Acceptance Criteria
+- `docker compose up` starts the app, accessible at `http://<host>:8000`.
+- Generate a 12×12 puzzle from a pre-shipped theme with default settings,
+  download a valid PDF.
+- Toggling diagonal, reversed, and overlap each visibly changes the puzzle.
+- Min/max length filtering works: setting `min=8` excludes short words.
+- Theme editor: create new theme, see live normalisation preview, save,
+  appear in dropdown, generate from it.
+- Edit and delete existing themes via UI.
+- Words with prefixes (Mr, Dr, etc.) show stripped form in grid, full form
+  with prefix in parentheses on word list.
+- When fewer words can be placed than requested, the PDF still generates
+  (warnings only go to stderr — no result page).
+- Bad input (invalid slug, empty word list, max length < min length) shows
+  a clear error message, not a stack trace.
+- Downloaded PDFs are named `<slug>_<YYYY-MM-DD_HH-MM-SS>.pdf`.