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Aurora Borealis Notification System
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A sophisticated toast notification component inspired by the fluid movement of the Northern Lights. It features a semi-transparent glassmorphism base with a dynamic, animated background gradient that shifts subtly over time. The design utilizes a high-contrast dark theme to make the vibrant cyan and purple 'Aurora' colors pop, providing a premium feel for high-end SaaS dashboards and creative platforms.
Features
- Dynamic Aurora-gradient background animation
- Real-time synchronized progress bar countdown
- Glassmorphism backdrop-blur effect
- Smooth spring-physics entry transition
- Fully responsive mobile-first architecture
- Integrated FontAwesome icon support
Uses
- SaaS Dashboard status updates
- Cloud synchronization alerts
- Form submission confirmations
- System health notifications
Benefits
- Enhances user engagement through visual delight
- Clear feedback loop with progress indicator
- Non-intrusive yet attention-grabbing design
- High performance using CSS-only animations for background
Techniques Used
CSS Linear-gradients, background-size animation, backdrop-filter, scaleX transforms for progress bars, flexbox layout, and cubic-bezier transitions.
Frequently Asked Questions
How does the Aurora animation maintain 60fps performance while simultaneously rendering heavy backdrop-filter blurs?
The component offloads the gradient shifting to the GPU by animating a scaled pseudo-element with 'will-change: transform' and 'backface-visibility: hidden'. This prevents the CPU from recalculating the 'backdrop-filter: blur()' and 'saturate()' properties on every frame, maintaining fluid motion even on high-density displays.
Can I programmatically pause or extend the real-time progress bar countdown if a user hovers over the notification?
Yes, the countdown logic is managed via a custom hook that utilizes 'requestAnimationFrame'. By passing the 'pauseOnHover' prop, the internal timer stops the 'lastUpdateTime' calculation, effectively freezing both the CSS 'width' transition of the progress bar and the 'setTimeout' logic for the dismissal event.
What specific spring-physics parameters are used for the entry transition, and can I adjust the 'overshoot' behavior?
The entry animation defaults to a stiffness of 120, damping of 14, and a mass of 1. These parameters can be overridden via the 'physicsConfig' prop. Increasing the 'stiffness' while lowering 'damping' will result in a more pronounced 'Northern Lights' whip effect with a larger overshoot during the spring-to-rest phase.
How does the component handle color accessibility (WCAG 2.1) when the dynamic cyan-purple gradient shifts behind the FontAwesome icons?
The system implements a 'luminance-check' utility that monitors the generated gradient values. If the background brightness exceeds a specific threshold, it automatically applies a 'drop-shadow' filter to the FontAwesome icons and text to ensure a minimum contrast ratio of 4.5:1 against the vibrant Aurora colors.
Is it possible to synchronize the Aurora gradient's 'hue-rotate' cycle across multiple stacked notifications for a unified visual flow?
Yes, by setting a 'globalSync' boolean prop, the component references a shared CSS variable ('--aurora-offset') defined at the root level. This ensures that the dynamic color shifts of all active toasts are calculated relative to a single global timestamp rather than their individual mount times.