The SVG-line replacement from the gradient-cleanup refactor (commit
2fb35f2) drew the slash on the main diagonal (top-left → bottom-right)
and stopped at the inset:6px box edge — visually disconnected from the
cell vertices. The original CSS gradient stripe goes corner-to-corner
of the inset box on the anti-diagonal (the natural slash direction
for Vietnamese lô tô), with a clip-path reveal animation that reads
as "drawing" the slash.
- Restore .cell-crossed / .cell-crossed-win pseudo classes
- Replace the inline <svg> markup with a single <span> + class
- Restore cross-draw keyframes (clip-path inset reveal)
- prefers-reduced-motion: keep slash drawn, drop the reveal animation
Lô tô
Bàn số của trò chơi "Lô tô" — SvelteKit app.
Single page (/). The host enables "Chế độ quản trò" in settings to
reveal the master panel inline below their player card; called numbers
get spoken aloud in Vietnamese using bundled MP3 clips (no runtime TTS).
See docs/ for architecture, code standards, and deployment.
Development
npm install
npm run dev
Inside code-server (reverse proxy)
cp .env.example .env.local
# edit .env.local: set CODESERVER_HOST and CODESERVER_PORT
npm run dev:codeserver
Open https://<CODESERVER_HOST>/absproxy/<CODESERVER_PORT>/.
Use /absproxy/{port}/, not /proxy/{port}/ — the latter strips the
path prefix and breaks the SvelteKit base path.
Build
npm run build # default — root basePath, for Cloudflare Pages
npm run build:gh # /loto basePath, for tiennm99.github.io/loto manual export
Static export to build/. Deployed to Cloudflare Pages from main
(set up via the CF dashboard — see docs/deployment-guide.md).
Regenerating audio
Vietnamese voice clips live in static/audio/{voiceId}/. Generated
once with edge-tts (free, no API
key) — runtime never calls TTS. To regenerate (e.g., to add a new voice
that Microsoft ships, or to change wording):
pip install edge-tts
python3 scripts/generate-audio.py
The script auto-discovers every vi-* voice and writes a manifest the
app reads on next reload.