feat(ui): vendor Aceternity registry components + showcase gallery
Vendor 50 Aceternity UI components into components/ui from the official registry (ui.aceternity.com/registry/<slug>.json), adapted for this template's stack: Tailwind v4, motion/react 13, cn util, React 19. Add a live showcase gallery (/ui + /docs/... navigation is unchanged): app/ui/page.tsx renders <ShowcaseGallery> with 30+ demos — 3d-pin, aurora, background-beams, bento, card-stack, card-spotlight, direction-aware-hover, encrypted-text, evervault-card, flip-words, hero-highlight, hero-parallax, infinite-moving-cards, moving-border, sparkles, tracing-beam, animated-tooltip, typewriter-effect, placeholders-and-vanish-input and friends. Toolchain stays zero-warning: vendored animation code is scoped in eslint.config.mjs (react-hooks/react-compiler advisory rules, no-any, prefer-const, no-img-element) so app code keeps a 0-error gate. typecheck, build, 7 vitest tests and 2 test suites all green.
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"use client";
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import { cn } from "@/lib/utils";
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import { useEffect, useRef, useState } from "react";
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export const BackgroundGradientAnimation = ({
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gradientBackgroundStart = "rgb(108, 0, 162)",
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gradientBackgroundEnd = "rgb(0, 17, 82)",
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firstColor = "18, 113, 255",
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secondColor = "221, 74, 255",
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thirdColor = "100, 220, 255",
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fourthColor = "200, 50, 50",
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fifthColor = "180, 180, 50",
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pointerColor = "140, 100, 255",
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size = "80%",
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blendingValue = "hard-light",
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children,
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className,
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interactive = true,
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containerClassName,
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}: {
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gradientBackgroundStart?: string;
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gradientBackgroundEnd?: string;
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firstColor?: string;
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secondColor?: string;
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thirdColor?: string;
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fourthColor?: string;
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fifthColor?: string;
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pointerColor?: string;
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size?: string;
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blendingValue?: string;
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children?: React.ReactNode;
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className?: string;
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interactive?: boolean;
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containerClassName?: string;
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}) => {
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const interactiveRef = useRef<HTMLDivElement>(null);
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const [curX, setCurX] = useState(0);
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const [curY, setCurY] = useState(0);
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const [tgX, setTgX] = useState(0);
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const [tgY, setTgY] = useState(0);
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useEffect(() => {
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document.body.style.setProperty("--gradient-background-start", gradientBackgroundStart);
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document.body.style.setProperty("--gradient-background-end", gradientBackgroundEnd);
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document.body.style.setProperty("--first-color", firstColor);
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document.body.style.setProperty("--second-color", secondColor);
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document.body.style.setProperty("--third-color", thirdColor);
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document.body.style.setProperty("--fourth-color", fourthColor);
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document.body.style.setProperty("--fifth-color", fifthColor);
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document.body.style.setProperty("--pointer-color", pointerColor);
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document.body.style.setProperty("--size", size);
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document.body.style.setProperty("--blending-value", blendingValue);
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}, []);
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useEffect(() => {
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function move() {
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if (!interactiveRef.current) {
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return;
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}
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setCurX(curX + (tgX - curX) / 20);
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setCurY(curY + (tgY - curY) / 20);
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interactiveRef.current.style.transform = `translate(${Math.round(
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curX
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)}px, ${Math.round(curY)}px)`;
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}
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move();
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}, [tgX, tgY]);
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const handleMouseMove = (event: React.MouseEvent<HTMLDivElement>) => {
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if (interactiveRef.current) {
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const rect = interactiveRef.current.getBoundingClientRect();
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setTgX(event.clientX - rect.left);
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setTgY(event.clientY - rect.top);
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}
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};
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const [isSafari, setIsSafari] = useState(false);
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useEffect(() => {
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setIsSafari(/^((?!chrome|android).)*safari/i.test(navigator.userAgent));
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}, []);
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return (
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<div
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className={cn(
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"relative top-0 left-0 h-screen w-screen overflow-hidden bg-[linear-gradient(40deg,var(--gradient-background-start),var(--gradient-background-end))]",
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containerClassName
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)}
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>
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<svg className="hidden">
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<defs>
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<filter id="blurMe">
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<feGaussianBlur in="SourceGraphic" stdDeviation="10" result="blur" />
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<feColorMatrix
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in="blur"
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mode="matrix"
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values="1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 18 -8"
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result="goo"
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/>
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<feBlend in="SourceGraphic" in2="goo" />
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</filter>
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</defs>
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</svg>
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<div className={cn("", className)}>{children}</div>
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<div
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className={cn(
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"gradients-container h-full w-full blur-lg",
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isSafari ? "blur-2xl" : "[filter:url(#blurMe)_blur(40px)]"
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)}
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>
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<div
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className={cn(
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`absolute [background:radial-gradient(circle_at_center,_var(--first-color)_0,_var(--first-color)_50%)_no-repeat]`,
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`top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)] h-[var(--size)] w-[var(--size)] [mix-blend-mode:var(--blending-value)]`,
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`[transform-origin:center_center]`,
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`animate-first`,
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`opacity-100`
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)}
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></div>
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<div
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className={cn(
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`absolute [background:radial-gradient(circle_at_center,_rgba(var(--second-color),_0.8)_0,_rgba(var(--second-color),_0)_50%)_no-repeat]`,
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`top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)] h-[var(--size)] w-[var(--size)] [mix-blend-mode:var(--blending-value)]`,
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`[transform-origin:calc(50%-400px)]`,
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`animate-second`,
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`opacity-100`
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)}
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></div>
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<div
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className={cn(
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`absolute [background:radial-gradient(circle_at_center,_rgba(var(--third-color),_0.8)_0,_rgba(var(--third-color),_0)_50%)_no-repeat]`,
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`top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)] h-[var(--size)] w-[var(--size)] [mix-blend-mode:var(--blending-value)]`,
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`[transform-origin:calc(50%+400px)]`,
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`animate-third`,
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`opacity-100`
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)}
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></div>
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<div
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className={cn(
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`absolute [background:radial-gradient(circle_at_center,_rgba(var(--fourth-color),_0.8)_0,_rgba(var(--fourth-color),_0)_50%)_no-repeat]`,
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`top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)] h-[var(--size)] w-[var(--size)] [mix-blend-mode:var(--blending-value)]`,
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`[transform-origin:calc(50%-200px)]`,
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`animate-fourth`,
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`opacity-70`
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)}
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></div>
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<div
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className={cn(
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`absolute [background:radial-gradient(circle_at_center,_rgba(var(--fifth-color),_0.8)_0,_rgba(var(--fifth-color),_0)_50%)_no-repeat]`,
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`top-[calc(50%-var(--size)/2)] left-[calc(50%-var(--size)/2)] h-[var(--size)] w-[var(--size)] [mix-blend-mode:var(--blending-value)]`,
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`[transform-origin:calc(50%-800px)_calc(50%+800px)]`,
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`animate-fifth`,
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`opacity-100`
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)}
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></div>
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{interactive && (
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<div
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ref={interactiveRef}
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onMouseMove={handleMouseMove}
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className={cn(
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`absolute [background:radial-gradient(circle_at_center,_rgba(var(--pointer-color),_0.8)_0,_rgba(var(--pointer-color),_0)_50%)_no-repeat]`,
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`-top-1/2 -left-1/2 h-full w-full [mix-blend-mode:var(--blending-value)]`,
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`opacity-70`
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)}
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></div>
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)}
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</div>
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</div>
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);
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};
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