add formatting

.github/copilot-instructions.md

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+# Project Guidelines
+
+## Code Style
+- Primary source is `main.tex`; keep edits focused there unless build config changes are required.
+- Follow existing LaTeX macro style: reusable `\newcommand` helpers for resume blocks (e.g., `\resumeSubheading`, `\resumeEducation`, `\resumeItem`).
+- Preserve compact spacing/layout conventions (`\vspace`, custom `\titleformat`, `tabular*` alignment) unless asked to redesign formatting.
+- Keep package usage consistent with current preamble and avoid adding new packages unless required for a user request.
+
+## Architecture
+- This workspace is a single-document resume project.
+- `main.tex` contains both template macros and resume content.
+- Files like `main.aux`, `main.fdb_latexmk`, and `main.fls` are generated build artifacts, not source-of-truth.
+- `glyphtounicode` is included for text extractability/ATS friendliness via `\pdfgentounicode=1`.
+
+## Build and Test
+- Build PDF (preferred): `latexmk -pdf main.tex`
+- Alternative build: `pdflatex main.tex` (run multiple times if references/layout need settling)
+- Clean artifacts: `latexmk -c`
+- Validate by checking successful compile and reviewing resulting `main.pdf` for layout overflow/line wrapping regressions.
+
+## Project Conventions
+- Use existing macros instead of ad-hoc formatting in section bodies.
+- Keep section/list structure aligned with current pattern: `\resumeSubHeadingListStart` / `\resumeSubHeadingListEnd` and `\resumeItemListStart` / `\resumeItemListEnd`.
+- Keep content concise and achievement-oriented; avoid large prose blocks that break one-page layout assumptions.
+- Do not manually edit generated files (`*.aux`, `*.fdb_latexmk`, `*.fls`, etc.); `.gitignore` already treats these as build outputs.
+
+## Integration Points
+- External links are rendered with `hyperref` (`hidelinks`) and should stay valid/HTTPS.
+- Typography/layout relies on current package set (`sourcesanspro`, `titlesec`, `multicol`, `tabularx`); changing these can significantly alter spacing.
+
+## Security
+- Resume data includes personally identifiable information (name, location, email, phone, profile URLs).
+- Do not invent or expose new sensitive personal details when generating edits.
+- Prefer placeholders when asked to add unknown contact/private information.