{
  "id": "smooth-scrolly-images",
  "kind": "element",
  "title": "Smooth scrolly images",
  "summary": "A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.",
  "url": "https://enrichr.dev/elements/smooth-scrolly-images.html",
  "section": "gallery",
  "techniques": [
    "scroll-driven",
    "parallax"
  ],
  "stack": [
    "Vanilla JS",
    "CSS"
  ],
  "frameworks": [
    "React",
    "Next.js",
    "Vanilla"
  ],
  "mood": [
    "fluid",
    "polished",
    "cinematic"
  ],
  "intents": [
    "smooth scrolling image list",
    "lerp smooth scroll with parallax",
    "scroll velocity skew cards",
    "inertia scroll image gallery",
    "parallax images inside cards"
  ],
  "status": "tested",
  "params": [
    {
      "key": "accent",
      "label": "Accent colour",
      "type": "color",
      "value": "#e6ff55"
    },
    {
      "key": "ease",
      "label": "Smoothing (higher is snappier)",
      "type": "range",
      "min": 0.04,
      "max": 0.4,
      "step": 0.01,
      "value": 0.1
    },
    {
      "key": "parallax",
      "label": "Image parallax",
      "type": "range",
      "min": 0,
      "max": 0.5,
      "step": 0.02,
      "value": 0.2
    },
    {
      "key": "velocity",
      "label": "Velocity effect",
      "type": "range",
      "min": 0,
      "max": 1.5,
      "step": 0.05,
      "value": 1
    },
    {
      "key": "count",
      "label": "Cards",
      "type": "range",
      "min": 3,
      "max": 8,
      "step": 1,
      "value": 5
    }
  ],
  "license": "Free to use in personal and client projects during the preview. Final licence terms will be published here before any paid tier starts; ask before reselling the code as a collection.",
  "contract": "function mount(root, opts) -> { update(partialOpts), destroy() }; root must contain the element markup",
  "exports": {
    "claude": "Add the \"Smooth scrolly images\" element to this project.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nSteps:\n1. Look at the project first to see its framework and where components, styles and static files live. Follow its conventions.\n2. Fetch https://enrichr.dev/elements/smooth-scrolly-images.json if you can read URLs (fields: source.markup, source.css, source.js, params); otherwise use the source at the end of this message.\n3. Add the files, mount it where I tell you (default: the top of the home page), and pass the settings below as the opts.\n4. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n5. Run the dev server and check it. with reduced motion on, nothing moves; it works at 375px wide and with touch only; there are no console errors; scrolling stays smooth; destroy() is called when it unmounts.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}",
    "chatgpt": "I want the \"Smooth scrolly images\" element on my website. Below is its complete source. Please:\n1. Build one self-contained index.html that I can open locally to see it working (put the CSS in a <style> tag and the JavaScript in a <script> tag, with the markup in the body).\n2. Then explain, step by step, which parts go where in my own site, and how to mount it. My stack is: [tell me yours, or say \"plain HTML\"].\n3. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}\n\nVerify: with reduced motion on, nothing moves; it works at 375px wide and with touch only; there are no console errors; scrolling stays smooth; destroy() is called when it unmounts.",
    "cursor": "Add the \"Smooth scrolly images\" element to this codebase.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nUse Composer / agent mode. First search the repo for how components, styles and scripts are organised, then add the files in the matching places, mount it on the page I name, and run the app to confirm it works. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}\n\nVerify: with reduced motion on, nothing moves; it works at 375px wide and with touch only; there are no console errors; scrolling stays smooth; destroy() is called when it unmounts.\n\nOptional: save this as .cursor/rules/enrichr-smooth-scrolly-images.mdc so the rule stays with the project:\n---\ndescription: How to use the Enrichr Smooth scrolly images element\nalwaysApply: false\n---\nmount(root, opts) expects the element markup inside root and returns { update, destroy }. Always call destroy() on unmount and never edit the ef- class names.",
    "v0": "Create a Next.js (App Router) client component for the \"Smooth scrolly images\" element. Tailwind is available but this component needs no utility classes.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nFiles to create:\n- smooth-scrolly-images.js : the JavaScript below, with one line appended at the end: export { mount };  (and the markup exported as: export const markup = \"<the markup string>\";). If the project uses TypeScript and does not allow JS imports, put // @ts-nocheck on the first line.\n- the CSS below goes in your global stylesheet (or a plain .css file imported once at the app root). The class names are global and start with ef-.\n\nUse this component as the wrapper (adjust the import paths):\n```tsx\n\"use client\";\nimport { useEffect, useRef } from \"react\";\nimport { markup, mount } from \"./smooth-scrolly-images\"; // markup is the HTML string; mount is the JavaScript's mount function\n\nexport default function SmoothScrollyImages(props: Record<string, unknown>) {\n  const ref = useRef<HTMLDivElement>(null);\n  const fx = useRef<{ update: (o: object) => void; destroy: () => void } | null>(null);\n  useEffect(() => {\n    const root = ref.current;\n    if (!root) return;\n    root.innerHTML = markup;\n    fx.current = mount(root, props);\n    return () => { fx.current?.destroy(); fx.current = null; root.innerHTML = \"\"; };\n  }, []);\n  useEffect(() => { fx.current?.update(props); }, [JSON.stringify(props)]);\n  return <div ref={ref} />;\n}\n```\n\nRender it on the home page so I can see it. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}",
    "lovable": "Add the \"Smooth scrolly images\" element to this React + Vite + TypeScript + Tailwind project. Do not install any packages.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nFiles to create:\n- smooth-scrolly-images.js : the JavaScript below, with one line appended at the end: export { mount };  (and the markup exported as: export const markup = \"<the markup string>\";). If the project uses TypeScript and does not allow JS imports, put // @ts-nocheck on the first line.\n- the CSS below goes in your global stylesheet (or a plain .css file imported once at the app root). The class names are global and start with ef-.\n\nWrapper component (src/components/SmoothScrollyImages.tsx):\n```tsx\n\"use client\";\nimport { useEffect, useRef } from \"react\";\nimport { markup, mount } from \"./smooth-scrolly-images\"; // markup is the HTML string; mount is the JavaScript's mount function\n\nexport default function SmoothScrollyImages(props: Record<string, unknown>) {\n  const ref = useRef<HTMLDivElement>(null);\n  const fx = useRef<{ update: (o: object) => void; destroy: () => void } | null>(null);\n  useEffect(() => {\n    const root = ref.current;\n    if (!root) return;\n    root.innerHTML = markup;\n    fx.current = mount(root, props);\n    return () => { fx.current?.destroy(); fx.current = null; root.innerHTML = \"\"; };\n  }, []);\n  useEffect(() => { fx.current?.update(props); }, [JSON.stringify(props)]);\n  return <div ref={ref} />;\n}\n```\n\nRemove the \"use client\" line if it is not needed. Show it on the home page. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}",
    "bolt": "Create a small Vite project (vanilla JavaScript, no framework unless I already have one) that shows the \"Smooth scrolly images\" element.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nFiles: index.html (a container element, then a script tag), style.css (the CSS below), smooth-scrolly-images.js (the JavaScript below) and main.js that sets the container's innerHTML to the markup and calls mount(container, opts) with the settings below. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}\n\nVerify: with reduced motion on, nothing moves; it works at 375px wide and with touch only; there are no console errors; scrolling stays smooth; destroy() is called when it unmounts.",
    "replit": "Create a new HTML, CSS and JavaScript Repl that shows the \"Smooth scrolly images\" element. No packages, no server code.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nFiles: index.html (a container element, link style.css, load smooth-scrolly-images.js and then main.js), style.css (the CSS below), smooth-scrolly-images.js (the JavaScript below), main.js (sets the container's innerHTML to the markup, then calls mount(container, opts) with the settings below). Press Run to preview. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}",
    "figma": "Designer handoff notes for the \"Smooth scrolly images\" element (Enrichr Library). Figma cannot run this JavaScript inside a design file, so use it as a motion reference and hand the code to a developer.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nWhat it does: The container scrolls natively, so wheel, touch, drag and keys all work. Inside it a sticky stage holds the list, and a spacer gives the scroller its height. On every scroll event a requestAnimationFrame loop reads scrollTop as the target and moves a current value toward it by a fraction each frame (a lerp). The list is translated by that current value, so it trails the real scroll and glides to rest. The gap between current and target each frame is the velocity: it scales each card down a little, skews it, and shifts the oversized image layer inside the card against its distance from the viewport centre, which gives the parallax. When current equals target the loop stops and wakes again on the next scroll.\nAccessibility: The scroller is a focusable region, so arrow keys, Page Up and Down, Home and End scroll it, with a visible focus ring. Because scrolling is native, screen readers and touch work as usual. With prefers-reduced-motion the lerp is bypassed and the scale, skew and parallax are skipped, so the list simply scrolls. The card text sits over a darkening scrim for contrast.\n\nTunable settings:\n- Accent colour: color, default #e6ff55\n- Smoothing (higher is snappier): range 0.04 to 0.4, step 0.01, default 0.1\n- Image parallax: range 0 to 0.5, step 0.02, default 0.2\n- Velocity effect: range 0 to 1.5, step 0.05, default 1\n- Cards: range 3 to 8, step 1, default 5\n\nCurrent settings:\n{{SETTINGS}}\n\nFor the developer: Element contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\nIn Figma:\n- Draw the resting state as a frame and the end state as a second frame; link them with Smart Animate to show the motion in a prototype.\n- Put the settings above in the frame's notes or Dev Mode annotations so the developer matches them.\n- Link https://enrichr.dev/elements/smooth-scrolly-images.html in the handoff: the live demo and the copy-ready code are there. Developers can paste the prompts for Claude, Cursor or v0 from the Export menu.\nNothing is copied from another designer's file; this is original code from Enrichr.",
    "framer": "Add the \"Smooth scrolly images\" element to Framer as a code component. Framer code components are React, so wrap the vanilla code like this. Check it in the Framer editor, as Framer's component API can change.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\n1. In Framer: Assets > Code > New component. Name it SmoothScrollyImages.\n2. Paste the JavaScript below into a separate code file named smooth-scrolly-images.js in the same project, with  export { mount };  and  export const markup = \"<the markup string>\";  added. Put the CSS into the component as a <style> tag.\n3. Component:\n```tsx\nimport { addPropertyControls, ControlType } from \"framer\"\nimport { useEffect, useRef } from \"react\";\nimport { markup, mount } from \"./smooth-scrolly-images\"; // markup is the HTML string; mount is the JavaScript's mount function\n\nexport default function SmoothScrollyImages(props: any) {\n  const ref = useRef<HTMLDivElement>(null);\n  const fx = useRef<{ update: (o: object) => void; destroy: () => void } | null>(null);\n  useEffect(() => {\n    const root = ref.current;\n    if (!root) return;\n    root.innerHTML = markup;\n    fx.current = mount(root, props);\n    return () => { fx.current?.destroy(); fx.current = null; root.innerHTML = \"\"; };\n  }, []);\n  useEffect(() => { fx.current?.update(props); }, [JSON.stringify(props)]);\n  return <div ref={ref} />;\n}\n\naddPropertyControls(SmoothScrollyImages, {\n  accent: { type: ControlType.Color, title: \"Accent colour\", defaultValue: \"#e6ff55\" },\n  ease: { type: ControlType.Number, title: \"Smoothing\", min: 0.04, max: 0.4, step: 0.01, defaultValue: 0.1 },\n  parallax: { type: ControlType.Number, title: \"Image parallax\", min: 0, max: 0.5, step: 0.02, defaultValue: 0.2 },\n  velocity: { type: ControlType.Number, title: \"Velocity effect\", min: 0, max: 1.5, step: 0.05, defaultValue: 1 },\n  count: { type: ControlType.Number, title: \"Cards\", min: 3, max: 8, step: 1, defaultValue: 5 },\n})\n```\n4. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}",
    "webflow": "Add the \"Smooth scrolly images\" element to a Webflow site with an Embed element. Test it on the published or preview site: scripts in embeds may not run inside the Designer canvas.\n\nThis is the \"Smooth scrolly images\" element from the Enrichr Library: A vertical list of image cards in its own scroll container, eased with a lerp, where scroll velocity squashes and skews each card while its image drifts for parallax.\nPage: https://enrichr.dev/elements/smooth-scrolly-images.html\nMachine-readable spec: https://enrichr.dev/elements/smooth-scrolly-images.json\n\nElement contract (vanilla JavaScript, no dependencies):\n- The JavaScript defines a function mount(root, opts).\n- root is an empty container element. Set root.innerHTML to the markup first, then call mount(root, opts).\n- It returns an object with update(partialOpts) and destroy(). Call destroy() when the element is removed. Some elements also return replay().\n- The CSS classes all start with \"ef-\" so they will not collide with your styles.\n\n1. Add an Embed element where it should appear. Paste a <style> block with the CSS, one container <div id=\"enrichr-smooth-scrolly-images\"></div>, and a <script> block with the JavaScript followed by:\n   mount(document.getElementById(\"enrichr-smooth-scrolly-images\"), { ...your settings... });\n   (set the container's innerHTML to the markup first, as in the contract).\n2. Embed elements have a size limit (check Webflow's current number). If the code is longer, host the JS and CSS as files and link them from Custom code in the page settings, then keep only the container and the mount call in the Embed.\n3. Keep the behaviour of the source unchanged. Do not add dependencies. Respect prefers-reduced-motion. Keep text as real HTML.\n\nSettings:\n{{SETTINGS}}\n\nSource:\n{{CODE}}"
  },
  "exportTools": [
    "claude",
    "chatgpt",
    "cursor",
    "v0",
    "lovable",
    "bolt",
    "replit",
    "figma",
    "framer",
    "webflow"
  ],
  "accessibility": "The scroller is a focusable region, so arrow keys, Page Up and Down, Home and End scroll it, with a visible focus ring. Because scrolling is native, screen readers and touch work as usual. With prefers-reduced-motion the lerp is bypassed and the scale, skew and parallax are skipped, so the list simply scrolls. The card text sits over a darkening scrim for contrast.",
  "performance": "Only transforms are written each frame, to the list and to the cards near the viewport; off-screen cards are skipped. Card positions are measured once and again on resize through a ResizeObserver, never inside the loop. The loop sleeps when the list has settled, so an idle element costs nothing.",
  "dependencies": [],
  "source": {
    "markup": "<div class=\"ef-ssi\">\n  <div class=\"ef-ssi__wrap\">\n    <div class=\"ef-ssi__view\" tabindex=\"0\" role=\"region\" aria-label=\"Image list, scroll to explore\">\n      <div class=\"ef-ssi__space\"><div class=\"ef-ssi__stage\"><div class=\"ef-ssi__list\"></div><span class=\"ef-ssi__bar\" aria-hidden=\"true\"></span></div></div>\n    </div>\n  </div>\n</div>",
    "css": "/* Enrichr Library · https://enrichr.dev */\n.ef-ssi { width: 100%; }\n.ef-ssi__wrap { box-sizing: border-box; width: 100%; padding: 1rem; border-radius: 1rem; font-family: system-ui, -apple-system, \"Segoe UI\", Roboto, sans-serif; }\n.ef-ssi__view { position: relative; height: 26rem; max-height: 80vh; overflow-x: hidden; overflow-y: auto; border-radius: 0.8rem; scrollbar-width: none; overscroll-behavior: contain; outline: none; }\n.ef-ssi__view::-webkit-scrollbar { display: none; }\n.ef-ssi__view:focus-visible { box-shadow: 0 0 0 2px var(--ef-acc, #e6ff55); }\n.ef-ssi__space { position: relative; }\n.ef-ssi__stage { position: sticky; top: 0; height: 26rem; overflow: hidden; }\n.ef-ssi__list { position: relative; display: flex; flex-direction: column; gap: 1rem; padding: 0.2rem 0.2rem 1rem; will-change: transform; }\n.ef-ssi__card { position: relative; flex: none; height: 13rem; border-radius: 0.9rem; overflow: hidden; color: #fbf8f1; transform-origin: 50% 50%; will-change: transform; box-shadow: 0 10px 18px -12px rgba(0, 0, 0, 0.6); }\n.ef-ssi__art { position: absolute; left: 0; right: 0; top: 0; bottom: 0; will-change: transform; }\n.ef-ssi__card::after { content: \"\"; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0, 0, 0, 0.1), transparent 35%, rgba(0, 0, 0, 0.62)); pointer-events: none; }\n.ef-ssi__n { position: absolute; z-index: 1; top: 0.8rem; left: 1rem; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.14em; opacity: 0.85; }\n.ef-ssi__txt { position: absolute; z-index: 1; left: 1rem; right: 1rem; bottom: 0.9rem; }\n.ef-ssi__t { display: block; font-size: 1.25rem; font-weight: 800; letter-spacing: -0.01em; line-height: 1.1; text-shadow: 0 2px 10px rgba(0, 0, 0, 0.35); }\n.ef-ssi__s { display: block; margin-top: 0.25rem; font-size: 0.72rem; opacity: 0.82; letter-spacing: 0.04em; }\n.ef-ssi__bar { position: absolute; right: 0.35rem; top: 0.6rem; width: 3px; height: 1.6rem; border-radius: 3px; background: var(--ef-acc, #e6ff55); opacity: 0.85; pointer-events: none; }\n@media (prefers-reduced-motion: reduce) { .ef-ssi__list, .ef-ssi__card, .ef-ssi__art { will-change: auto; } }",
    "js": "// Enrichr Library · https://enrichr.dev\n// Smooth scrolly images: a list of gradient image cards inside its own scroll container. Native scrolling (wheel, touch, keys, drag)\n// sets a target; a rAF loop eases the list toward it with a lerp, and the speed of that easing drives a per-card scale, skew and\n// image parallax. The loop sleeps when the list has settled. Reduced motion: no easing, no velocity effects, no parallax.\n// mount(root, { background, accent, ease (0.04-0.4), parallax (0-0.5), velocity (0-1.5), count (3-8) })\nfunction mount(root, o) {\n  var reduce = window.matchMedia(\"(prefers-reduced-motion: reduce)\").matches;\n  var wrap = root.querySelector(\".ef-ssi__wrap\");\n  var view = root.querySelector(\".ef-ssi__view\");\n  var space = root.querySelector(\".ef-ssi__space\");\n  var stage = root.querySelector(\".ef-ssi__stage\");\n  var list = root.querySelector(\".ef-ssi__list\");\n  var bar = root.querySelector(\".ef-ssi__bar\");\n  var opts = {}, cards = [], arts = [], tops = [], hs = [];\n  var viewH = 0, listH = 0, cur = 0, target = 0, raf = 0, ro = null, offs = [], dead = false;\n  var DATA = [[\"Tidal\", \"Field notes\"], [\"Ember\", \"Studio series\"], [\"Moss\", \"Quiet objects\"], [\"Dusk\", \"Night shift\"], [\"Arch\", \"Form study\"], [\"Grain\", \"Print run\"], [\"Haze\", \"Soft light\"], [\"Loop\", \"Motion kit\"]];\n\n  // Enrichr puzzle-piece artwork, inline so the code stays portable. piece(i, accent) returns an aria-hidden SVG string, a different piece per card.\n  var PIECES = [[\"1513.7 1453.9 322.3 322.3\", \"M1821 1761.2h-292.3v-111.6c0-8 6.5-14.5 14.5-14.5 4.2 0 8.2 1.9 11 5.1 7.8 8.6 19.7 13.6 32.7 11.9 16.8-2.3 30.1-16 32-32.7 2.5-22.6-15.1-41.6-37.1-41.6-11 0-20.9 4.7-27.7 12.3-2.8 3.1-6.7 4.9-10.9 4.9-8 0-14.5-6.4-14.5-14.4v-111.7h292.3v111.7c0 8-6.4 14.4-14.5 14.4-4.2 0-8.1-1.8-10.9-5-7.9-8.6-19.7-13.6-32.7-11.9-16.8 2.2-30.1 15.9-32 32.7-2.5 22.6 15.1 41.6 37.1 41.6 11 0 20.8-4.8 27.7-12.3 2.8-3.1 6.7-5 10.8-5 8.1 0 14.5 6.5 14.5 14.5z\"],\n    [\"1423.36 860.8 503.07 322.3\", \"M1821 875.8v111.6c0 8 6.5 14.5 14.5 14.5 4.2 0 8.1-1.9 10.9-5 6.8-7.5 16.7-12.3 27.7-12.3 22 0 39.6 19 37.1 41.6-1.9 16.7-15.2 30.5-32 32.7-13 1.7-24.8-3.3-32.7-11.9-2.8-3.2-6.8-5-11-5-8 0-14.5 6.4-14.5 14.4v111.7h-111.6c-8 0-14.5-6.5-14.5-14.5 0-4.2 1.9-8.2 5-11 8.7-7.9 13.7-19.7 12-32.7-2.3-16.8-16-30.1-32.8-32-22.5-2.5-41.5 15.1-41.5 37.1 0 11 4.7 20.9 12.3 27.7 3.1 2.8 4.9 6.7 4.9 10.8v0.1c0 8-6.4 14.5-14.5 14.5h-111.6v-111.7c0-8-6.4-14.4-14.5-14.4-4.1 0-8 1.8-10.8 4.9-6.9 7.6-16.7 12.3-27.7 12.3-22 0-39.6-19-37.1-41.6 1.9-16.7 15.2-30.4 32-32.7 13-1.7 24.8 3.3 32.7 11.9 2.8 3.2 6.7 5.1 10.9 5.1 8.1 0 14.5-6.5 14.5-14.5v-111.6z\"],\n    [\"1513.7 166.86 322.3 503.06\", \"M1528.7 564.5v-111.6c0-8 6.5-14.5 14.5-14.5 4.2 0 8.2 1.9 11 5 7.8 8.7 19.7 13.7 32.7 11.9 16.8-2.2 30.1-15.9 32-32.7 2.5-22.5-15.1-41.5-37.1-41.5-11 0-20.9 4.7-27.7 12.3-2.8 3.1-6.7 4.9-10.9 4.9-8 0-14.5-6.5-14.5-14.5v-111.6h111.6c8.1 0 14.5-6.5 14.5-14.5 0-4.1-1.8-8.1-4.9-10.9-7.6-6.8-12.3-16.6-12.3-27.6 0-22 19-39.6 41.5-37.1 16.8 1.8 30.5 15.2 32.8 32 1.7 12.9-3.3 24.8-12 32.7-3.1 2.8-5 6.7-5 10.9 0 8 6.5 14.5 14.5 14.5h111.6v111.6c0 8-6.4 14.5-14.5 14.5-4.2 0-8.1-1.9-10.9-5-7.9-8.7-19.7-13.6-32.7-11.9-16.8 2.2-30.1 15.9-32 32.7-2.5 22.5 15.1 41.6 37.1 41.6 11 0 20.8-4.8 27.7-12.3 2.8-3.1 6.7-5 10.8-5 8.1 0 14.5 6.5 14.5 14.5v111.6h-111.6c-8 0-14.5 6.5-14.5 14.5 0 4.2 1.9 8.1 5 10.9 7.5 6.8 12.3 16.7 12.3 27.7 0 22-19 39.5-41.6 37.1-16.8-1.9-30.5-15.3-32.7-32-1.7-13 3.3-24.9 11.9-32.7 3.1-2.9 5-6.8 5-11 0-8-6.4-14.5-14.5-14.5z\"]];\n  var PLACE = [[52, -16, 80, 14], [-24, 34, 96, -22], [46, 26, 74, 32], [-8, -20, 84, -12], [58, 38, 92, 24], [4, 18, 78, -32]]; // left %, top %, width %, rotate deg\n  var PCOL = [[\"#2f7d5b\", 0.95], [\"#0c1e18\", 0.8], [\"ACC\", 0.9], [\"#c6f26b\", 0.85], [\"#0a6b46\", 0.95], [\"#fbf8f1\", 0.85]];\n  function piece(i, accent, sx, ox) {\n    var p = PIECES[i % 3], q = PLACE[i % 6], c = PCOL[i % 6], k = sx || 1, o = ox || 0;\n    return '<span class=\"ef-ssi__pc\" aria-hidden=\"true\" style=\"position:absolute;left:' + (o + q[0] * k).toFixed(1) + '%;top:' + q[1] + '%;width:' + (q[2] * k).toFixed(1) + '%;transform:rotate(' + q[3] + 'deg);color:' + (c[0] === \"ACC\" ? accent : c[0]) + ';opacity:' + c[1] + ';pointer-events:none\"><svg viewBox=\"' + p[0] + '\" aria-hidden=\"true\" focusable=\"false\" style=\"display:block;width:100%;height:auto\"><path fill=\"currentColor\" d=\"' + p[1] + '\"/></svg></span>';\n  }\n  function art(i, a) {\n    var c = \"#fbf8f1\", d = \"#0c1e18\";\n    var p = i % 6;\n    if (p === 0) return \"radial-gradient(circle at 72% 32%, \" + a + \" 0 16%, transparent 17%), linear-gradient(160deg, #005236, \" + d + \")\";\n    if (p === 1) return \"conic-gradient(from 210deg at 35% 65%, #005236, \" + a + \", \" + c + \", #005236)\";\n    if (p === 2) return \"repeating-linear-gradient(120deg, #005236 0 14px, \" + d + \" 14px 28px)\";\n    if (p === 3) return \"radial-gradient(circle at 30% 35%, \" + a + \" 0 18%, transparent 19%), radial-gradient(circle at 64% 62%, \" + c + \" 0 16%, transparent 17%), linear-gradient(200deg, #0a6b46, \" + d + \")\";\n    if (p === 4) return \"radial-gradient(ellipse 30% 24% at 50% 44%, \" + c + \" 0 99%, transparent 100%), linear-gradient(190deg, #005236, \" + a + \")\";\n    return \"radial-gradient(circle, \" + a + \" 0 2.5px, transparent 3px) 0 0 / 18px 18px, linear-gradient(145deg, #005236, \" + d + \")\";\n  }\n  function clamp(v, a, b) { return v < a ? a : v > b ? b : v; }\n  function build() {\n    list.textContent = \"\";\n    cards = []; arts = [];\n    for (var i = 0; i < opts.count; i++) {\n      var c = document.createElement(\"div\"); c.className = \"ef-ssi__card\";\n      var bg = document.createElement(\"div\"); bg.className = \"ef-ssi__art\"; bg.style.background = art(i, opts.accent);\n      bg.insertAdjacentHTML(\"beforeend\", piece(i, opts.accent));\n      var n = document.createElement(\"span\"); n.className = \"ef-ssi__n\"; n.textContent = String(i + 1).padStart(2, \"0\");\n      var tx = document.createElement(\"div\"); tx.className = \"ef-ssi__txt\";\n      var t = document.createElement(\"span\"); t.className = \"ef-ssi__t\"; t.textContent = DATA[i % DATA.length][0];\n      var s = document.createElement(\"span\"); s.className = \"ef-ssi__s\"; s.textContent = DATA[i % DATA.length][1];\n      tx.appendChild(t); tx.appendChild(s);\n      c.appendChild(bg); c.appendChild(n); c.appendChild(tx);\n      list.appendChild(c); cards.push(c); arts.push(bg);\n    }\n    measure();\n  }\n  function measure() {\n    if (dead) return;\n    viewH = view.clientHeight;\n    stage.style.height = viewH + \"px\";\n    tops = []; hs = [];\n    var maxH = 0;\n    for (var i = 0; i < cards.length; i++) { tops.push(cards[i].offsetTop); hs.push(cards[i].offsetHeight); if (hs[i] > maxH) maxH = hs[i]; }\n    listH = list.offsetHeight;\n    space.style.height = Math.max(listH, viewH) + \"px\";\n    var pad = reduce ? 0 : Math.ceil((viewH / 2 + maxH / 2) * opts.parallax);\n    for (var j = 0; j < arts.length; j++) { arts[j].style.top = -pad + \"px\"; arts[j].style.bottom = -pad + \"px\"; }\n    target = view.scrollTop;\n    kick();\n  }\n  function kick() { if (!raf && !dead) raf = requestAnimationFrame(tick); }\n  function tick() {\n    raf = 0;\n    if (dead) return;\n    target = view.scrollTop;\n    var prev = cur;\n    cur += (target - cur) * (reduce ? 1 : opts.ease);\n    if (Math.abs(target - cur) < 0.05) cur = target;\n    var v = reduce ? 0 : cur - prev;\n    list.style.transform = \"translate3d(0,\" + (-cur).toFixed(2) + \"px,0)\";\n    var range = Math.max(1, listH - viewH);\n    bar.style.transform = \"translateY(\" + (clamp(cur / range, 0, 1) * (viewH - 1.2 * 16 - 38)).toFixed(1) + \"px)\";\n    var amt = clamp(Math.abs(v) / 50, 0, 1) * opts.velocity;\n    var sk = clamp(v / 40, -1, 1) * 4 * opts.velocity;\n    if (!reduce) {\n      for (var i = 0; i < cards.length; i++) {\n        var cc = tops[i] + hs[i] / 2 - cur - viewH / 2;\n        if (Math.abs(cc) > viewH / 2 + hs[i]) continue;\n        cards[i].style.transform = \"scale(\" + (1 - amt * 0.1).toFixed(4) + \") skewY(\" + sk.toFixed(2) + \"deg)\";\n        arts[i].style.transform = \"translate3d(0,\" + (-cc * opts.parallax).toFixed(1) + \"px,0)\";\n      }\n    }\n    if (cur !== target || Math.abs(v) > 0.01) kick();\n  }\n  function onScroll() { kick(); }\n  function update(next) {\n    var prev = opts;\n    opts = Object.assign({ background: \"#0c1e18\", accent: \"#e6ff55\", ease: 0.1, parallax: 0.2, velocity: 1, count: 5 }, opts, next || {});\n    opts.count = Math.max(3, Math.min(8, Math.round(opts.count)));\n    opts.ease = clamp(+opts.ease, 0.04, 0.4);\n    opts.parallax = clamp(+opts.parallax, 0, 0.5);\n    opts.velocity = clamp(+opts.velocity, 0, 1.5);\n    wrap.style.background = opts.background;\n    wrap.style.setProperty(\"--ef-acc\", opts.accent);\n    if (prev.count !== opts.count || prev.accent !== opts.accent) build();\n    else if (prev.parallax !== opts.parallax) measure();\n  }\n  function destroy() {\n    dead = true;\n    if (raf) cancelAnimationFrame(raf);\n    raf = 0;\n    offs.forEach(function (f) { f(); }); offs = [];\n    if (ro) { ro.disconnect(); ro = null; }\n  }\n  view.addEventListener(\"scroll\", onScroll, { passive: true });\n  offs.push(function () { view.removeEventListener(\"scroll\", onScroll); });\n  if (window.ResizeObserver) { ro = new ResizeObserver(function () { measure(); }); ro.observe(view); }\n  else { window.addEventListener(\"resize\", measure); offs.push(function () { window.removeEventListener(\"resize\", measure); }); }\n  update(o);\n  return { update: update, destroy: destroy };\n}"
  }
}