fix: emcn component library design engineering polish

[adithyaakrishna]

Summary

Comprehensive polish of the emcn compos library along with addressing a11y issues and design token consistency

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation
• Other: Components Polish

Testing

• Visual regression: Button variants (tertiary no longer uses !important, base class restructured), toast auto-dismiss now 5s default, dropdown menu wider
• Touch devices: Verify hover states no longer stick on tap
• Keyboard navigation: Tab through Input, Textarea, Slider, Switch all now show visible focus indicators
• Reduced motion: Toggle prefer reduced motion (macos setting), all animations should be disabled

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

[cursor]

PR Summary

Medium Risk
Medium risk due to broad CSS variable/token refactors across many landing/auth components plus a few functional touchpoints (signup validation rendering, chat customization default color) that could cause visual regressions or incorrect default branding.

Overview
Standardizes marketing/landing + auth UI styling around new CSS variables (e.g. --landing-*, --brand, --shadow-*, z-index + scrollbar tokens), replacing many hard-coded hex colors and ad-hoc spacing/font sizes across navbar, hero, templates/features/pricing/enterprise, blog/legal/changelog, and auth pages.

Improves a few interactive behaviors: signup form now animates validation error regions without layout jumps, enterprise feature marquee is renamed/scoped and pauses on hover, and branded button/customization defaults switch from --brand-primary-*-hex to --brand/--brand-hover (including api/chat defaults). Also relaxes docs viewport restrictions by removing maximumScale/userScalable limits.

^{Written by Cursor Bugbot for commit a7aad74. This will update automatically on new commits. Configure here.}

[vercel]

@adithyaakrishna is attempting to deploy a commit to the Sim Team on Vercel.

A member of the Team first needs to authorize it.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Mar 20, 2026 5:50pm

[icecrasher321]

@adithyaakrishna just ping me when this is ready for review. We'll go through this together.

[adithyaakrishna]

@icecrasher321 this is ready

[icecrasher321]

Can the + not have a dark outline. Let's not make styling changes here and keep it in line with staging imo

[icecrasher321]

In Settings > Custom Tools -- Add button has incorrect styling. Please test light and dark mode of all these if changes were made.

[icecrasher321]

When I start typing into the copilot box -- it becomes lighter instead of looking active

[adithyaakrishna]

@icecrasher321 looks like these were some regressions that I missed out on, will send a fix soon

[cursor]

Cursor Bugbot has reviewed your changes and found 2 potential issues.

There are 3 total unresolved issues (including 1 from previous review).

^{Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}