fix(web): respect iOS safe areas across mobile chrome

[jappyjan]

Summary

`viewport-fit=cover` was already in place, but no element in the codebase honored `env(safe-area-inset-*)`. On iPhone the chat header / hamburger sat under the Dynamic Island, the composer hid behind the home indicator, and the mobile sidebar drawer ran under the camera in landscape.

Approach

• Define four `@utility` classes (`pt-safe`, `pb-safe`, `pl-safe`, `pr-safe`) in `apps/web/src/index.css`. Each resolves to `max(env(safe-area-inset-*), 0px)`, so the value is 0 on devices without safe areas — desktop and Android are unaffected.
• Apply the bare `*-safe` utilities on the mobile sidebar drawer's inner wrapper, where there's no other padding to combine with.
• For the chat top bar (`ChatView.tsx`) and the composer wrapper (`ChatView.tsx`), use inline `pt-[calc(env(safe-area-inset-top)+0.5rem)]` etc. The existing `px-3 sm:px-5` base padding has to be preserved on devices without safe areas; bare `pl-safe`/`pr-safe` would override those due to Tailwind's specificity-collision resolution and zero them out.
• The Electron branch in `ChatView.tsx`'s header is left as-is — it already uses its own `wco:h-[env(titlebar-area-height)]` sizing.

Test plan

• iPhone portrait: chat title and hamburger fully visible below Dynamic Island
• iPhone portrait: composer + send button sit above home indicator
• iPhone landscape: sidebar drawer not clipped by camera
• iPhone: open sidebar — its content not under the island
• Desktop / non-iOS mobile: no visible padding change

Screenshots / video

Note

Respect iOS safe areas in mobile Chrome for chat header and sidebar

• Adds pt-safe, pb-safe, pl-safe, and pr-safe Tailwind utilities in index.css that apply env(safe-area-inset-*) padding with a max(..., 0px) guard, requiring viewport-fit=cover.
• Updates ChatView.tsx so the header and input bar use these inset-aware paddings on non-Electron web, with Electron retaining explicit horizontal padding.
• Updates sidebar.tsx to wrap mobile sheet content with safe-area padding on all four sides, applying left or right inset based on which side the sidebar opens from.

^{Macroscope summarized 9d8052b.}

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Note

Low Risk
Low risk UI-only layout adjustments; main risk is unintended padding/spacing regressions on mobile breakpoints due to new safe-area calculations.

Overview
Fixes iOS notch/Dynamic Island and home-indicator overlap by making top-level mobile chrome respect env(safe-area-inset-*).

Adds Tailwind pt-safe/pb-safe/pl-safe/pr-safe utilities in index.css, applies them to the mobile sidebar sheet wrapper in sidebar.tsx, and updates ChatView.tsx to use safe-area-aware padding for the chat header and composer area (while keeping the Electron header layout unchanged).

^{Reviewed by Cursor Bugbot for commit 9d8052b. Bugbot is set up for automated code reviews on this repo. Configure here.}

Summary by CodeRabbit

Release Notes

• Bug Fixes
  • Improved layout spacing and alignment on the chat interface and mobile navigation sidebar for devices with notches, Dynamic Island, and other display safe-area features, ensuring proper positioning across all modern mobile devices.

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[coderabbitai]

📝 Walkthrough

Walkthrough

Adds safe-area inset CSS utility classes and applies them across layout components (header, input bar, sidebar) to properly reserve space for device notches, Dynamic Island, and home indicator regions on iOS.

Changes

Cohort / File(s)	Summary
Safe-Area CSS Utilities apps/web/src/index.css	Introduces four new utility classes (pt-safe, pb-safe, pl-safe, pr-safe) using CSS env(safe-area-inset-*) variables for device-aware spacing.
Layout Component Updates apps/web/src/components/ChatView.tsx, apps/web/src/components/ui/sidebar.tsx	Applies safe-area-aware padding to header, input bar, and mobile sidebar container; replaces fixed padding with computed values based on safe-area insets and conditional logic.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 A notch-aware warren, at last!
Safe spaces emerge from the CSS vast,
Where padding respects each device's decree,
Dynamic Islands and notches now flee,
The sidebar hops safely, with spacing so wise,
No content lost under those iOS skies! ✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main change: adding support for iOS safe areas in the mobile UI, which is the primary focus of the changeset.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The PR description comprehensively covers all required sections with clear explanations of changes, reasoning, and test plan.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[jappyjan]

@coderabbitai review

[coderabbitai]

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Review triggered.

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@apps/web/src/index.css`:
- Around line 65-76: The Stylelint config is flagging Tailwind v4's custom
at-rule "@utility" in apps/web/src/index.css; update .stylelintrc.json to allow
it by adding or merging a rule entry for "at-rule-no-unknown" that supplies an
ignoreAtRules array including "utility" (and any other Tailwind at-rules you
use), e.g. add "rules": { "at-rule-no-unknown": [true, { "ignoreAtRules":
["utility"] }] } so the `@utility` declarations in index.css (padding-safe
utilities) are not treated as unknown at-rules.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 9fb2038b-732c-4a48-ac8c-83238e731845

📥 Commits

Reviewing files that changed from the base of the PR and between dbebc38 and 62ee822.

📒 Files selected for processing (3)

• apps/web/src/components/ChatView.tsx
• apps/web/src/components/ui/sidebar.tsx
• apps/web/src/index.css

[macroscopeapp]

Approvability

Verdict: Approved

Pure CSS changes adding iOS safe-area-inset support for mobile browsers. The utilities use standard env() values that fall back to 0 on non-iOS devices, making this a low-risk styling fix with no runtime logic changes.

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