# Dev Log: Refactor Tracking Page Layout and Styling

**Date:** 2026-05-20
**Task Title:** Refactor `/tracking` page to use Dashboard's layout container and table styling

## Overview
The goal of this task was to modernize the UI of the `/tracking` page by aligning it with the main Dashboard's visual design. The Tracking page was previously restricted to a narrow 750px width (using settings-specific layout wrappers) and utilized custom, redundant table styling. The objective was to expand the layout to 1200px, reuse the Dashboard's highly polished `.deal-table` CSS, apply consistent row spacing, implement title truncation with tooltips on hover, and fix overlapping UI issues with a sticky header.

## Challenges Faced
1. **Layout Constraints:** The page was wrapped in `<div class="tidy-container settings-width">`, which hardcoded a narrow maximum width, preventing any interior table adjustments from taking full effect.
2. **CSS Duplication & Scoping:** The Dashboard's robust table styles were tightly scoped to the specific `#deals-table` ID. Reusing them required updating `global.css` without causing unintended regressions on the Dashboard. Furthermore, there were duplicate, conflicting CSS blocks for tab styling.
3. **HTML Structural Errors During Refactoring:** Initial attempts to remove `.tidy-card` wrappers resulted in accidentally deleting closing `</div>` tags. This broke Flexbox layouts and caused entire tabs to disappear from the DOM.
4. **Sticky Header Clipping:** The Dashboard uses a custom `::before` pseudo-element and fixed positioning to mask scrolled content above sticky table headers. Applying this blindly to the Tracking page caused the mask to overlay the page's navigation tabs, hiding them from the user.
5. **Dynamic Tooltip Safety:** The Title column required a `data-full-title` attribute to show truncated text on hover. The user suggested using JavaScript's native `escape()` function, which is deprecated and unsafe for HTML attributes (it does not encode quotes properly, risking rendering bugs).

## Solutions Implemented
1. **Layout Wrapper Update:** Replaced the narrow wrapper with `<div class="dashboard-content-wrapper tracking-page">`. The custom `.tracking-page` class allowed for page-specific CSS overrides.
2. **Global CSS Refactoring:** 
    * Updated `global.css` to apply Dashboard table styles to both `#deals-table` and `.deal-table` classes using comma-separated selectors.
    * Removed inline `<style>` overrides in the tracking template.
    * Deleted redundant, legacy `.tab-nav` CSS blocks, retaining only the modernized version.
3. **Template Rendering Updates:** Rewrote the `renderPotential`, `renderActive`, and `renderSales` JavaScript functions to:
    * Apply the `.deal-table` class to tables and `.deal-row` to rows.
    * Inject a `<tr class="spacer-row">` with dynamic `colspans` after every data row to match Dashboard spacing.
    * Apply the `.title-cell` class and `<span>` wrappers to the Title columns to enable CSS-based truncation and hover expansion.
4. **Sticky Header Masking:** Replaced the problematic `::before` pseudo-element with a dedicated DOM element `<div class="tracking-sticky-mask">`. Implemented a scroll event listener in JavaScript to toggle this mask `display: block` only when the user scrolls past the tabs, ensuring the tabs remain visible while still masking scrolled table rows from bleeding above the sticky header.
5. **XSS / Rendering Safety:** Wrote a custom `escapeHTML()` helper function to safely encode titles before injecting them into the `data-full-title` attribute.
6. **Cleanup:** Removed redundant `<h1>` and `<h2>` headers from the page, relying on the top nav and active tab indicators for context. Repositioned the action buttons (Sync, Download) using `justify-content: flex-end`.

## Success Status
**Successful.** The `/tracking` page now visually mirrors the Dashboard. The tables stretch properly across the 1200px container, row spacing is consistent, truncated titles expand gracefully on hover, and the sticky headers correctly mask scrolled content without obscuring the navigation tabs. Core tests passed and Playwright visual verification confirmed the layout integrity.