Phoenix UI Polish

Goal

Make the Phoenix application look and feel professional across desktop and mobile, with consistent layout, typography, responsive navigation, accessible states, and clear notifications.

Users

Operators using the web UI daily.
Administrators managing devices, alerts, and reports.
Keyboard and mobile users who need reliable interaction behavior.

Requirements

Use a consistent application layout with a responsive header and collapsible desktop sidebar.
Provide mobile navigation that avoids horizontal scrolling and keeps primary destinations reachable.
Establish readable typography, spacing, and content max-widths.
Provide visible hover, focus, active, loading, and error states for interactive controls.
Use data-first table/list styling for dense data.
Support a manual light/dark theme toggle that respects system preference by default.
Persist manual theme choice across sessions.
Render flash messages as floating toast notifications.
Preserve WCAG AA contrast and keyboard focus visibility.

The UI polish work is a cross-cutting feature over Phoenix layouts, components, and page templates. The design favors a structured shell, responsive content areas, consistent form controls, readable tables, and feedback patterns that make status and errors obvious without distracting from operational data.

Edge Cases

Mobile landscape should not break navigation.
Long headings and table cells should wrap or truncate without layout overflow.
200% browser zoom should remain usable without horizontal scrolling.

Validation

Verify primary pages at desktop and mobile widths.
Verify keyboard focus movement and visible focus states.
Verify main text contrast meets WCAG AA.
Verify toasts, theme toggle, tables, forms, and navigation use consistent styling.

Nixstasis Architecture