Added frontend and email support for link colors in CTA cards

[sanne-san]

Ref https://linear.app/ghost/issue/PLG-377/add-link-color-setting

[coderabbitai]

Walkthrough

This pull request adds two new CSS rules in both the core frontend and email template styles. In the core frontend file, anchor elements within the .kg-cta-sponsor-label and .kg-cta-text classes nested in the .kg-cta-link-accent container are set to use the var(--ghost-accent-color) variable. In the email template partial, similar rules are introduced to assign the dynamic {{accentColor}} value to the same anchor elements, enforced with the !important flag. These changes update the styling for call-to-action link components across different modules without removing any existing styles.

Possibly related PRs

• Improved the cta card rendering #22317 – Modifies anchor element styling within the .kg-cta-link-accent class, aligning with the current modifications.
• Added email styles for CTA card #22167 – Alters styles for .kg-cta-sponsor-label and .kg-cta-text elements, directly corresponding to the changes in this PR.
• Made various CTA card improvements based on beta feedback #22438 – Updates the same CSS classes in cta.css, demonstrating a strong code-level relationship to these styling modifications.

Suggested labels

deploy-to-staging

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Reviewing files that changed from the base of the PR and between cae330b and c80e869.

⛔ Files ignored due to path filters (3)

• ghost/core/test/e2e-api/admin/__snapshots__/email-previews.test.js.snap is excluded by !**/*.snap
• ghost/core/test/integration/services/email-service/__snapshots__/batch-sending.test.js.snap is excluded by !**/*.snap
• ghost/core/test/integration/services/email-service/__snapshots__/cards.test.js.snap is excluded by !**/*.snap

📒 Files selected for processing (2)

• ghost/core/core/frontend/src/cards/css/cta.css (2 hunks)
• ghost/email-service/lib/email-templates/partials/styles.hbs (2 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (12)

• GitHub Check: Unit tests (Node 22.13.1)
• GitHub Check: Unit tests (Node 20.11.1)
• GitHub Check: Unit tests (Node 18.12.1)
• GitHub Check: Regression tests (Node 20.11.1, sqlite3)
• GitHub Check: Regression tests (Node 20.11.1, mysql8)
• GitHub Check: Database tests (Node 20.11.1, sqlite3)
• GitHub Check: Database tests (Node 22.13.1, mysql8)
• GitHub Check: Database tests (Node 20.11.1, mysql8)
• GitHub Check: Ghost-CLI tests
• GitHub Check: Database tests (Node 18.12.1, mysql8)
• GitHub Check: Lint
• GitHub Check: i18n

🔇 Additional comments (4)

ghost/core/core/frontend/src/cards/css/cta.css (2)

83-85: Added styling for accent-colored links in sponsor labels.

This CSS rule correctly applies the accent color (--ghost-accent-color) to links within the sponsor label when the CTA card has the kg-cta-link-accent class, extending the link color customization capabilities.

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182-184: Added styling for accent-colored links in CTA text.

This rule appropriately applies the accent color to links within the CTA text content when the card has the kg-cta-link-accent class, ensuring consistent accent color application across the component.

ghost/email-service/lib/email-templates/partials/styles.hbs (2)

1057-1059: Email template implementation for sponsor label links.

The rule uses {{accentColor}} with !important to ensure the accent color is properly applied to sponsor label links in email templates, mirroring the frontend implementation.

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1108-1110: Email template implementation for CTA text links.

This rule correctly implements the accent color for CTA text links in email templates with the same approach as the sponsor label, ensuring consistent styling across both frontend and email experiences.

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