bcfb712af5
* docs(skills): update frontend-slides with missing dependencies and formatting * chore: rebuild indices for frontend-slides update --------- Co-authored-by: sck_0 <samujackson1337@gmail.com>
111 lines
3.9 KiB
Markdown
111 lines
3.9 KiB
Markdown
# Animation Patterns Reference
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Use this reference when generating presentations. Match animations to the intended feeling.
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## Effect-to-Feeling Guide
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| Feeling | Animations | Visual Cues |
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|---------|-----------|-------------|
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| **Dramatic / Cinematic** | Slow fade-ins (1-1.5s), large scale transitions (0.9 to 1), parallax scrolling | Dark backgrounds, spotlight effects, full-bleed images |
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| **Techy / Futuristic** | Neon glow (box-shadow), glitch/scramble text, grid reveals | Particle systems (canvas), grid patterns, monospace accents, cyan/magenta/electric blue |
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| **Playful / Friendly** | Bouncy easing (spring physics), floating/bobbing | Rounded corners, pastel/bright colors, hand-drawn elements |
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| **Professional / Corporate** | Subtle fast animations (200-300ms), clean slides | Navy/slate/charcoal, precise spacing, data visualization focus |
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| **Calm / Minimal** | Very slow subtle motion, gentle fades | High whitespace, muted palette, serif typography, generous padding |
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| **Editorial / Magazine** | Staggered text reveals, image-text interplay | Strong type hierarchy, pull quotes, grid-breaking layouts, serif headlines + sans body |
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## Entrance Animations
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```css
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/* Fade + Slide Up (most versatile) */
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.reveal {
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opacity: 0;
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transform: translateY(30px);
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transition: opacity 0.6s var(--ease-out-expo),
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transform 0.6s var(--ease-out-expo);
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}
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.visible .reveal {
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opacity: 1;
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transform: translateY(0);
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}
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/* Scale In */
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.reveal-scale {
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opacity: 0;
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transform: scale(0.9);
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transition: opacity 0.6s, transform 0.6s var(--ease-out-expo);
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}
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/* Slide from Left */
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.reveal-left {
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opacity: 0;
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transform: translateX(-50px);
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transition: opacity 0.6s, transform 0.6s var(--ease-out-expo);
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}
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/* Blur In */
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.reveal-blur {
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opacity: 0;
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filter: blur(10px);
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transition: opacity 0.8s, filter 0.8s var(--ease-out-expo);
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}
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```
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## Background Effects
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```css
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/* Gradient Mesh — layered radial gradients for depth */
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.gradient-bg {
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background:
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radial-gradient(ellipse at 20% 80%, rgba(120, 0, 255, 0.3) 0%, transparent 50%),
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radial-gradient(ellipse at 80% 20%, rgba(0, 255, 200, 0.2) 0%, transparent 50%),
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var(--bg-primary);
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}
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/* Noise Texture — inline SVG for grain */
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.noise-bg {
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background-image: url("data:image/svg+xml,..."); /* Inline SVG noise */
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}
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/* Grid Pattern — subtle structural lines */
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.grid-bg {
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background-image:
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linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
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linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
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background-size: 50px 50px;
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}
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```
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## Interactive Effects
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```javascript
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/* 3D Tilt on Hover — adds depth to cards/panels */
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class TiltEffect {
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constructor(element) {
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this.element = element;
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this.element.style.transformStyle = 'preserve-3d';
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this.element.style.perspective = '1000px';
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this.element.addEventListener('mousemove', (e) => {
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const rect = this.element.getBoundingClientRect();
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const x = (e.clientX - rect.left) / rect.width - 0.5;
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const y = (e.clientY - rect.top) / rect.height - 0.5;
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this.element.style.transform = `rotateY(${x * 10}deg) rotateX(${-y * 10}deg)`;
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});
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this.element.addEventListener('mouseleave', () => {
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this.element.style.transform = 'rotateY(0) rotateX(0)';
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});
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}
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}
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```
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## Troubleshooting
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| Problem | Fix |
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|---------|-----|
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| Fonts not loading | Check Fontshare/Google Fonts URL; ensure font names match in CSS |
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| Animations not triggering | Verify Intersection Observer is running; check `.visible` class is being added |
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| Scroll snap not working | Ensure `scroll-snap-type: y mandatory` on html; each slide needs `scroll-snap-align: start` |
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| Mobile issues | Disable heavy effects at 768px breakpoint; test touch events; reduce particle count |
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| Performance issues | Use `will-change` sparingly; prefer `transform`/`opacity` animations; throttle scroll handlers |
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