Chart Prompts

Restyle my chart in the "Stability Study" style described below. Keep my data, chart type, title meaning and units; change only the presentation. Use the charting library this project already uses (plain SVG if there is none). If the library can't express a detail, draw it in a custom layer instead of dropping it. Measurements assume a 960 x 600 chart; scale them proportionally.

Mood: a quality control stability summary. Clean white, sober and regulatory: two storage conditions side by side, one red specification line and an unmistakable flag on any failing result.

Colors (use these exact values):
- Page: #FFFFFF. Ink: #1F2A36. Secondary text: #6A7480. Gridlines: #E7EAEE.
- Condition 1 (long term): #4F6D8F (slate blue). Condition 2 (accelerated): #D98E2E (amber).
- Specification and failures: #C62F2B (red), used only for the limit line, its label, the outline and flag of failing marks and their values.
- Not-tested placeholders: 1px dashed (3 3) #C9CED6.

Typography (Google Fonts): Questrial (a single 400 weight) for everything.
- Eyebrow: 12.5px uppercase, 1.6px letter-spacing, #6A7480, after a 4 x 22 px slate bar. Title: 29px #1F2A36, stating the finding. Subtitle: 15px #6A7480 with measure, unit and what the limit means.
- Legend 13.5px; tick labels 13px; value labels 12.5px; category labels 14px; notes and source 12px.

Layout:
- 56px margins. Eyebrow at y 57, title at y 100, subtitle at y 128, a legend row (13px squares, radius 2) at y 160. Plot from x 96 to x 896, baseline at y 470.
- Footer: an abbreviations line ("n/t = not tested. OOS = out of specification.") above "Source: ..." at left, a document reference at right.

Axes and grid:
- Y axis from zero with percent tick labels every 2 points and 1px #E7EAEE gridlines; no y axis line. A 1.2px #1F2A36 baseline. Timepoint labels 24px under the baseline ("Initial", "3 mo", ...).
- The specification limit is a 1.6px #C62F2B dashed (7 4) line across the plot, labelled at the right end above the line on a white knockout ("Specification limit 5.0%").

Marks:
- Bar chart: grouped vertical bars, 34px wide with a 4px gap inside the pair and 2px top corners. Value labels 7px above each bar with a 4px white halo so they read across the limit line. A bar that breaks the limit keeps its fill but gets a 2px #C62F2B inner outline, its value in red to the left of a 1.4px red flagpole, and a 34 x 14 red pennant (notched right edge) reading "OOS" in 10.5px white. Timepoints with no result show a dashed empty placeholder with "n/t" above it.
- Line chart: two 2.5px lines in the condition colors with 4px dots at each timepoint; the same red dashed limit; the first point past the limit becomes a 6px red-ringed dot with the OOS pennant; untested timepoints end the line (no interpolation) with a short note.
- If the underlying measure is a narrow percentage (for example purity from 90 to 100%), plot its complement (impurities or loss from initial) from zero so bar lengths stay honest, and say so in the subtitle.

Avoid: truncated y axes, gradients, shadows, more than one red element per failure, and decorative icons.

When you're done, render the chart and check that bars start at zero, only failing marks are red-outlined and flagged, no value label is struck through by the limit line, and the title's timepoint matches the first failure.