Enhance Mobile Responsiveness and Accessibility in Global Styles #58
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…aphy, and optimized interactive elements
WalkthroughThis pull request applies responsive design improvements across the application, adding mobile-first breakpoints and CSS utilities to enhance layout scaling across devices. All changes are presentational and styling-focused, with no functional or control-flow modifications. Changes
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes
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Actionable comments posted: 3
🧹 Nitpick comments (1)
components/hackathon-card.tsx (1)
46-57: Mobile-responsive card adjustments look good.The responsive adjustments create a more compact card on mobile screens:
- Image height reduced to h-36 on mobile
- Padding and spacing tightened appropriately
- Typography scales down for better fit
One minor consideration: The description text drops to
text-xson mobile (line 57), which may be at the lower limit of comfortable readability for some users. Consider testing on actual devices to ensure the text remains accessible.
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📒 Files selected for processing (7)
app/createHackathon/page.tsx(3 hunks)app/globals.css(5 hunks)app/layout.tsx(3 hunks)app/manage/ManageClient.tsx(1 hunks)app/page.tsx(6 hunks)components/hackathon-card.tsx(1 hunks)components/navigation.tsx(2 hunks)
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components/hackathon-card.tsx (1)
components/ui/card.tsx (1)
CardContent(79-79)
🪛 Biome (2.1.2)
app/globals.css
[error] 375-375: Unknown property is not allowed.
See CSS Specifications and browser specific properties for more details.
To resolve this issue, replace the unknown property with a valid CSS property.
(lint/correctness/noUnknownProperty)
[error] 414-414: Duplicate properties can lead to unexpected behavior and may override previous declarations unintentionally.
image-rendering is already defined here.
Remove or rename the duplicate property to ensure consistent styling.
(lint/suspicious/noDuplicateProperties)
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🔇 Additional comments (14)
app/createHackathon/page.tsx (1)
325-325: LGTM! Mobile-first responsive width adjustments.The addition of
sm:min-w-[200px]follows mobile-first principles by allowing label containers to be fluid on small screens while maintaining a minimum width of 200px on larger viewports. This improves layout flexibility on mobile devices.Also applies to: 357-357, 462-462
app/manage/ManageClient.tsx (1)
580-580: LGTM! Consistent responsive width adjustment.The change from fixed
min-w-[280px]to responsivemin-w-[200px] sm:min-w-[280px]maintains the same behavior on small-and-up screens while improving flexibility on mobile. This aligns with the responsive design improvements throughout the PR.app/layout.tsx (2)
14-19: LGTM! Proper viewport configuration for mobile responsiveness.The viewport export follows Next.js 15's pattern for defining viewport metadata. The configuration enables proper mobile scaling with
initialScale: 1, allows user zoom up to 5× for accessibility withmaximumScale: 5, and keepsuserScalable: trueto support users who need to zoom content.
37-37: LGTM! Fluid container layout for mobile-first design.The updated container classes implement a mobile-first approach:
- Replaces fixed
mx-32with fluidmx-autoon mobile- Restores desktop margins with
lg:mx-32on large screens- Reduces vertical padding on mobile (
py-4) while maintainingsm:py-8on larger screensThis improves content utilization on small viewports while preserving the desktop layout.
components/navigation.tsx (1)
19-31: LGTM! Compact navigation for mobile viewports.The navigation adjustments optimize header real estate on mobile devices:
- Reduced padding, heights, and gaps on base viewport
- Logo scales from 32px (w-8 h-8) to 48px (w-12 h-12) at sm+ breakpoint
- Brand text scales from xl to 3xl responsively
- Restores original desktop sizes at sm+ breakpoint
These changes maintain brand visibility while maximizing vertical space on mobile.
app/page.tsx (2)
293-294: LGTM! Comprehensive responsive layout improvements.The homepage now features extensive mobile-first responsive adjustments:
- Flexible section padding and container spacing
- Stacked layout on mobile (
flex-col) transitioning to row layout (sm:flex-row)- Fluid typography scaling from mobile to desktop breakpoints
- Full-width sync button on mobile for easier touch interaction
These changes significantly improve the mobile user experience while maintaining desktop aesthetics.
Also applies to: 301-303, 314-320
337-352: LGTM! Responsive carousel and state displays.The carousel and loading/error/empty states now adapt appropriately:
- Carousel height uses viewport units (
h-[40vh]→h-[50vh]at sm+)- Card dimensions scale from 280px to 350px width responsively
- Card margins tighten on mobile (
mx-2→mx-4at sm+)- All state displays (loading, error, empty) maintain consistent responsive heights
This ensures a cohesive experience across different states and screen sizes.
Also applies to: 401-437
app/globals.css (7)
38-43: LGTM! Useful line-clamp utility addition.The
line-clamp-3utility follows the same pattern as the existingline-clamp-2and provides consistent text truncation behavior. This is useful for maintaining layout consistency across card components.
57-57: LGTM! Performance optimization for scrolling animation.Adding
will-change: transformhints to the browser that the element will be transformed, enabling GPU acceleration for smoother animation performance. This is especially beneficial for the infinite scrolling carousel on mobile devices.
64-123: LGTM! Comprehensive responsive utility classes.The new utility classes provide flexible, reusable patterns for mobile layouts:
- Fluid spacing with
clamp()functions- Mobile-specific layout utilities (hiding, flex, centering)
- Safe-area insets for notched devices
- User-select prevention for interactive elements
These utilities align well with the mobile-first approach throughout the PR.
125-205: Mobile responsive styling looks comprehensive, but review forced style overrides.The mobile media query provides extensive responsive improvements including fluid typography, touch-friendly inputs, and optimized tables. However, a few areas warrant attention:
Lines 201-204 force reduced animation/transition durations globally with
!important. This might break animations that rely on specific timing (e.g., complex transitions, sequential animations, loading spinners). Consider applying this more selectively or testing animations thoroughly.
182-182: LGTM! iOS zoom prevention best practice.Setting input
font-size: 16pxprevents iOS from auto-zooming when focusing on form fields. This is a well-established best practice for mobile web forms while maintaining accessibility.
362-420: LGTM! Excellent accessibility and UX improvements.The enhancements provide substantial benefits:
- Font rendering optimizations with
font-feature-settingsandtext-rendering- Touch-friendly tap highlight color for interactive elements
- Clear focus-visible outlines for keyboard navigation (accessibility win)
- Adequate 44px minimum touch targets on mobile (WCAG guideline)
- Smooth scrolling with momentum for better mobile experience
- Double-tap zoom disabled via
touch-action: manipulationThese changes significantly improve both accessibility and mobile user experience.
440-458: LGTM! Form control polish and consistency.The form improvements provide better mobile UX:
- Removed number input spinners (better for mobile where they're hard to tap)
- Custom select styling with arrow indicator
- Consistent appearance across browsers
These refinements create a more polished and mobile-friendly form experience.
| @media (max-width: 480px) { | ||
| body { | ||
| font-size: 14px; | ||
| } | ||
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| .container { | ||
| padding: 0 clamp(0.5rem, 3vw, 1rem); | ||
| } | ||
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| h1 { | ||
| font-size: clamp(1.25rem, 6vw, 1.75rem); | ||
| line-height: 1.2; | ||
| } | ||
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| h2 { | ||
| font-size: clamp(1.125rem, 5vw, 1.5rem); | ||
| line-height: 1.3; | ||
| } | ||
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| button { | ||
| font-size: 0.875rem; | ||
| padding: 0.625rem 1rem; | ||
| } | ||
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| /* Stack flex items */ | ||
| .flex { | ||
| flex-direction: column !important; | ||
| } | ||
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| /* Reduce gaps */ | ||
| .gap-4 { | ||
| gap: 0.75rem !important; | ||
| } | ||
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| .gap-6 { | ||
| gap: 1rem !important; | ||
| } | ||
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| /* Better card spacing */ | ||
| .card { | ||
| padding: 1rem !important; | ||
| } | ||
| } |
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Review aggressive layout forcing on extra-small devices.
Lines 233-235 force all flex containers to stack vertically with !important:
.flex {
flex-direction: column !important;
}This override could break intentional horizontal layouts (e.g., icon+text buttons, inline badges, navigation items) on small screens. Consider:
- Using a more specific selector or opt-in class (e.g.,
.mobile-stack) - Testing all flex containers across the app to ensure no unintended layout breaks
Apply this approach for safer implementation:
- /* Stack flex items */
- .flex {
- flex-direction: column !important;
- }
+ /* Stack flex items - opt-in class */
+ .mobile-stack {
+ flex-direction: column;
+ }Then explicitly add mobile-stack class to containers that should stack on mobile.
🤖 Prompt for AI Agents
In app/globals.css around lines 208 to 250, the rule that forces all .flex
containers to column with !important is too aggressive and can break intended
horizontal layouts; update the stylesheet to remove that global override and
instead introduce a scoped class (e.g., .mobile-stack or .flex--stack) that
applies flex-direction: column only under the @media (max-width: 480px) query
without using !important, then replace usages in the markup by adding that new
class to the specific components that should stack on mobile (icon+text buttons,
cards, nav items, etc.), and run a quick pass through affected UI to verify no
unintended layout regressions.
| button, a, input, select, textarea { | ||
| -webkit-tap-highlight-color: rgba(251, 191, 36, 0.2); | ||
| tap-highlight-color: rgba(251, 191, 36, 0.2); | ||
| } |
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Fix non-standard CSS property.
Line 375 uses tap-highlight-color without the -webkit- prefix. This property requires a vendor prefix and won't work in its current form.
Apply this fix:
button, a, input, select, textarea {
-webkit-tap-highlight-color: rgba(251, 191, 36, 0.2);
- tap-highlight-color: rgba(251, 191, 36, 0.2);
}Based on static analysis hints (Biome lint tool).
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| button, a, input, select, textarea { | |
| -webkit-tap-highlight-color: rgba(251, 191, 36, 0.2); | |
| tap-highlight-color: rgba(251, 191, 36, 0.2); | |
| } | |
| button, a, input, select, textarea { | |
| -webkit-tap-highlight-color: rgba(251, 191, 36, 0.2); | |
| } |
🧰 Tools
🪛 Biome (2.1.2)
[error] 375-375: Unknown property is not allowed.
See CSS Specifications and browser specific properties for more details.
To resolve this issue, replace the unknown property with a valid CSS property.
(lint/correctness/noUnknownProperty)
🤖 Prompt for AI Agents
In app/globals.css around lines 373 to 376, the rule includes a non-standard
tap-highlight-color property without the vendor prefix; remove the unprefixed
tap-highlight-color line and keep the vendor-prefixed
-webkit-tap-highlight-color declaration (ensure -webkit-tap-highlight-color:
rgba(251, 191, 36, 0.2); remains) so the intended behavior uses the supported
WebKit-only property as flagged by the Biome lint.
| img { | ||
| image-rendering: -webkit-optimize-contrast; | ||
| image-rendering: crisp-edges; | ||
| } |
There was a problem hiding this comment.
Remove duplicate image-rendering property.
Lines 413-414 declare image-rendering twice with different values. The second declaration overrides the first, making the webkit-specific value ineffective. Keep only the standard property unless you specifically need the webkit fallback for older Safari versions.
Apply this fix:
img {
- image-rendering: -webkit-optimize-contrast;
image-rendering: crisp-edges;
}If you need webkit fallback for older Safari, reverse the order so the standard property comes last as a progressive enhancement.
Based on static analysis hints (Biome lint tool).
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| img { | |
| image-rendering: -webkit-optimize-contrast; | |
| image-rendering: crisp-edges; | |
| } | |
| img { | |
| image-rendering: crisp-edges; | |
| } |
🧰 Tools
🪛 Biome (2.1.2)
[error] 414-414: Duplicate properties can lead to unexpected behavior and may override previous declarations unintentionally.
image-rendering is already defined here.
Remove or rename the duplicate property to ensure consistent styling.
(lint/suspicious/noDuplicateProperties)
🤖 Prompt for AI Agents
In app/globals.css around lines 412 to 415, the img rule declares
image-rendering twice (webkit-specific then standard) so the second overrides
the first; fix by removing the duplicate — keep only the standard
image-rendering: crisp-edges declaration, or if you need the older Safari
fallback, reverse the declarations so the -webkit-optimize-contrast comes first
and image-rendering: crisp-edges comes last (progressive enhancement).
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Pull request overview
This PR enhances mobile responsiveness and accessibility across the application by updating global styles, component layouts, and viewport configuration. While the intent to improve mobile experience is clear, several CSS changes introduce critical accessibility and maintainability issues that need to be addressed.
Key changes:
- Added comprehensive responsive utilities and mobile breakpoint styles in globals.css
- Implemented viewport configuration with proper meta tags for mobile devices
- Updated component spacing and sizing with Tailwind responsive utilities
- Added touch interaction improvements and accessibility enhancements
Reviewed changes
Copilot reviewed 7 out of 8 changed files in this pull request and generated 11 comments.
Show a summary per file
| File | Description |
|---|---|
| package-lock.json | Added "peer": true flags to various dependencies (primarily metadata changes with no functional impact) |
| components/navigation.tsx | Reduced padding and sizing for mobile screens using Tailwind's responsive utilities (sm: prefix) |
| components/hackathon-card.tsx | Adjusted card image heights and content padding for better mobile display |
| app/page.tsx | Made homepage sections more mobile-friendly with responsive spacing, heights, and button layouts |
| app/manage/ManageClient.tsx | Reduced minimum width constraint on mobile for judge token input fields |
| app/layout.tsx | Added proper viewport configuration and adjusted main container responsive margins |
| app/globals.css | Added extensive responsive utilities, mobile media queries, and accessibility enhancements (contains several issues) |
| app/createHackathon/page.tsx | Made form labels responsive by conditionally applying minimum widths on larger screens |
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| .flex { | ||
| flex-direction: column !important; | ||
| } |
There was a problem hiding this comment.
Using !important on universal selectors can cause unintended side effects and override specific styles throughout the application. This applies flex-direction: column !important to all elements with the .flex class, which could break intentional horizontal layouts on mobile devices. Consider using more specific selectors or Tailwind's responsive utilities (like sm:flex-row) instead of forcing all flex containers to column layout.
| .flex { | |
| flex-direction: column !important; | |
| } |
| /* Reduce animations for performance */ | ||
| * { | ||
| animation-duration: 0.5s !important; | ||
| transition-duration: 0.2s !important; | ||
| } |
There was a problem hiding this comment.
Forcing reduced animation and transition durations globally with !important on all elements can break animations that require specific timing for proper functionality. This overrides all carefully crafted animations in the codebase, potentially causing visual glitches. Consider using prefers-reduced-motion media query instead to respect user preferences while maintaining proper animation timing for users who want animations.
| * { | ||
| scroll-behavior: smooth; | ||
| -webkit-overflow-scrolling: touch; |
There was a problem hiding this comment.
Setting scroll-behavior: smooth on all elements with the universal selector can cause performance issues, especially on mobile devices. Smooth scrolling should typically only be applied to the html element (which is already done on line 367). Additionally, this doesn't respect users who have set prefers-reduced-motion, which is an accessibility concern.
| * { | ||
| touch-action: manipulation; | ||
| } |
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Disabling double-tap zoom by applying touch-action: manipulation to all elements removes an important accessibility feature for users who need to zoom in to read content. This violates WCAG 2.1 Success Criterion 1.4.4 (Resize text). Consider applying this only to specific interactive elements like buttons where double-tap zoom interferes with functionality, not globally to all elements.
| * { | |
| touch-action: manipulation; | |
| } |
| image-rendering: -webkit-optimize-contrast; | ||
| image-rendering: crisp-edges; | ||
| } |
There was a problem hiding this comment.
Using image-rendering: crisp-edges as a fallback can cause images to look pixelated and low-quality, especially for photographs. The -webkit-optimize-contrast property is also non-standard and may produce unexpected results. Consider removing these properties and letting browsers use their default high-quality image rendering, or use image-rendering: auto for better cross-browser consistency.
| image-rendering: -webkit-optimize-contrast; | |
| image-rendering: crisp-edges; | |
| } | |
| image-rendering: auto; | |
| } |
| .card { | ||
| padding: 1rem !important; | ||
| } |
There was a problem hiding this comment.
The global .card class override with padding: 1rem !important will force all card components to use 1rem padding on small screens, potentially breaking cards that need different spacing. This is overly aggressive and removes flexibility. Consider using Tailwind's responsive padding utilities (like p-4 sm:p-6) on individual card components instead of forcing all cards to have the same padding.
| .card { | |
| padding: 1rem !important; | |
| } |
| .gap-4 { | ||
| gap: 0.75rem !important; | ||
| } | ||
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| .gap-6 { | ||
| gap: 1rem !important; | ||
| } | ||
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Using !important with utility class overrides like .gap-4 and .gap-6 can break Tailwind's utility-first design and make it difficult to create exceptions where needed. This forces all gap values on mobile, even where developers may intentionally want different spacing. Consider using Tailwind's responsive utilities instead.
| .gap-4 { | |
| gap: 0.75rem !important; | |
| } | |
| .gap-6 { | |
| gap: 1rem !important; | |
| } | |
| * { | ||
| max-width: 100vw; | ||
| } |
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Applying max-width: 100vw to all elements with the universal selector * is overly aggressive and can cause layout issues. This prevents any element from being wider than the viewport, which may break intentional overflow designs like horizontal scrolling carousels or off-canvas menus. Consider applying this constraint only to specific container elements that need it.
| * { | |
| max-width: 100vw; | |
| } |
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| /* Optimize table scrolling */ | ||
| table { | ||
| display: block; |
There was a problem hiding this comment.
Changing tables to display: block globally breaks table semantics and accessibility. Screen readers rely on table structure to announce row and column headers properly. While this allows horizontal scrolling, it removes the semantic meaning of tables. Consider wrapping tables in a scrollable container div instead, or use overflow-x: auto directly on table elements without changing their display property.
| display: block; |
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| /* Optimize button sizing */ | ||
| button, a[role="button"] { | ||
| padding: clamp(0.5rem, 2vw, 0.75rem) clamp(0.75rem, 3vw, 1rem); |
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The button padding override on lines 176-178 can conflict with the explicit min-height requirement on lines 393-396. The clamp function could result in buttons smaller than the 44px minimum touch target on very small screens. Consider ensuring buttons always meet the 44px minimum by using min-height: 44px here as well, or removing the padding override to let component-level styles handle sizing.
| padding: clamp(0.5rem, 2vw, 0.75rem) clamp(0.75rem, 3vw, 1rem); | |
| padding: clamp(0.5rem, 2vw, 0.75rem) clamp(0.75rem, 3vw, 1rem); | |
| min-height: 44px; |
1 participant
This PR significantly improves the mobile experience and overall accessibility of the application by updating globals.css with advanced responsive utilities and best practices. Key enhancements include:
1.Fluid typography and spacing
2.Advanced responsive utilities
3.Improved touch interactions
4.Accessibility upgrades
5.Performance optimizations
6.Better table and modal handling
7.Optimized input and select styling
8.Image rendering improvements
9.Support for landscape and ultra-wide screens.
10Custom scrollbar and line clamp utilities.
Summary by CodeRabbit
Style
Accessibility
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