Accessibility

Concretely, every page on mnera.io is built to meet the following from WCAG 2.1 Level AA:

• Skip-to-content link as the first focusable element on every page, targeting a <main id="main"> landmark (SC 2.4.1).
• Landmark structure using <header>, <nav aria-label="…">, <main> and <footer> (SC 1.3.1).
• Colour contrast at the AA threshold of 4.5:1 for body text and 3:1 for large text and UI components (SC 1.4.3).
• Keyboard parity for every interactive control, including the topic sunburst, domain bubble pack, and activity heatmap in the Atlas view (SC 2.1.1).
• Visible focus indicators on every focusable element (SC 2.4.7).
• Form labels programmatically linked to inputs and error messages announced via role="alert" so screen-reader users hear validation feedback (SC 3.3.2, SC 4.1.3).
• Modal dialogs and drawers use proper role="dialog" with focus management and trap, returning focus to the trigger on close.
• Menus and comboboxes implement the WAI-ARIA Authoring Practices keyboard patterns (arrow keys, Home/End, Escape, type-ahead).
• Reduced motion — transitions and animations are collapsed for users who set prefers-reduced-motion.
• Data visualisations in the Atlas view expose a textual description via role="img" and per-segment labels.

Conformance is verified with a combination of:

• Automated scans using axe-core in Playwright. Every public route is scanned against the WCAG 2.1 A and AA tagsets in CI; zero violations is a release gate.
• Interactive-state tests for mobile drawers, the Solid identity-provider combobox, the skip-to-content link, and the keyboard paths through Atlas-view chart segments.
• Manual code review against each WCAG 2.1 AA success criterion, with findings tracked in the repository.

The following are out of scope of our WCAG 2.1 AA conformance and may not be fully accessible:

• Assistive-technology regression testing on Windows (NVDA, JAWS, Dragon) has not been performed. macOS VoiceOver has been spot-checked.
• WCAG 2.2 additions (target size 2.5.8, focus-not-obscured 2.4.11, dragging movements 2.5.7) are not formally targeted.
• Localisation and right-to-left layouts — the site is English-only at present.
• Third-party Solid identity providers — once you click "Continue with Solid" you are taken to your chosen pod provider's sign-in page. Accessibility there is outside our control.

If you find anything on mnera.io that does not meet WCAG 2.1 AA, or that you cannot use with an assistive technology, please tell us so we can fix it.

Email contact@symantix.co.uk. Please include the page URL, the browser and assistive technology you were using, and a short description of the problem.

• W3C — Web Content Accessibility Guidelines (WCAG) Overview
• W3C — WCAG 2.1 Recommendation (full text)
• W3C — How to Meet WCAG (Quick Reference)
• W3C — Understanding Conformance
• W3C — WCAG Conformance Logos