# Glass toggle

> An iOS-style switch whose glass knob stretches like a drop of water as it slides across.

- Category: [Liquid Glass](https://library.aimran.es/components/liquid-glass)
- Built with: React + Motion
- Live editor: https://library.aimran.es/blocks/lg-toggle
- Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham

## Where to use it

Settings pages are where this glass toggle shines: focus mode in a productivity app, push notifications in a fitness app or dark mode on a blog. If you were looking for an iOS style toggle switch with a bit more character, the stretchy knob gives it that liquid feel without being distracting.

Write the label so it describes what happens when the switch is on, like “Focus mode” rather than “Enable”. A toggle should act right away, so for anything that needs a confirmation or a save button, a checkbox is the honest choice.

## Code

### React (Motion)

```tsx
import { useState, type CSSProperties, type MouseEvent, type ReactNode } from "react";
import { motion } from "framer-motion";

type Wallpaper = "aurora" | "sunset" | "ocean" | "light";

const spring = { type: "spring" as const, stiffness: 400, damping: 30 };

const walls: Record<Wallpaper, { base: string; blobs: string[] }> = {
  aurora: { base: "#0b0b1a", blobs: ["#5b21b6", "#2563eb", "#ec4899"] },
  sunset: { base: "#1a0b14", blobs: ["#f97316", "#f43f5e", "#8b5cf6"] },
  ocean: { base: "#031a1f", blobs: ["#06b6d4", "#3b82f6", "#10b981"] },
  light: { base: "#f8fafc", blobs: ["#fed7aa", "#ddd6fe", "#bae6fd"] },
};

const blobPositions = [
  ["-10%", "-15%"],
  ["45%", "5%"],
  ["5%", "50%"],
];

const grain = "url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E\")";

const glassCss = `
.lg-font {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", sans-serif;
  -webkit-font-smoothing: antialiased;
}
.lg-glass {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, var(--lg-a, 0.12));
  -webkit-backdrop-filter: blur(var(--lg-blur, 20px)) saturate(180%);
  backdrop-filter: blur(var(--lg-blur, 20px)) saturate(180%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 20px rgba(255, 255, 255, 0.08),
    0 8px 32px rgba(0, 0, 0, 0.18);
}
/* Borde de luz */
.lg-glass::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.05) 40%, rgba(255, 255, 255, 0.05) 60%, rgba(255, 255, 255, 0.4));
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}
/* Reflejo que sigue al cursor (--x / --y los pone track()) */
.lg-glass::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  pointer-events: none;
  opacity: var(--lg-hover, 0);
  transition: opacity 0.3s;
  background: radial-gradient(circle 140px at var(--x, 50%) var(--y, 0%), rgba(255, 255, 255, var(--lg-shine, 0.25)), transparent 70%);
}
.lg-glass:hover {
  --lg-hover: 1;
}
.lg-text {
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.18);
}
.lg-light .lg-text {
  color: #1d1d1f;
  text-shadow: none;
}
@keyframes lg-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(8%, -6%) scale(1.12); }
  66% { transform: translate(-6%, 7%) scale(0.94); }
}
`;

// Guarda la posición del cursor para el reflejo de .lg-glass::after
function track(e: MouseEvent<HTMLElement>) {
  const r = e.currentTarget.getBoundingClientRect();
  e.currentTarget.style.setProperty("--x", `${e.clientX - r.left}px`);
  e.currentTarget.style.setProperty("--y", `${e.clientY - r.top}px`);
}

interface StageProps {
  bg: Wallpaper;
  blur: number;
  opacity: number;
  shine: number;
  className?: string;
  children: ReactNode;
}

// Fondo de degradado animado sobre el que se ve el cristal
function Stage({
  bg,
  blur,
  opacity,
  shine,
  className = "relative h-[560px] w-full",
  children,
}: StageProps) {
  const light = bg === "light";
  const wall = walls[bg] ?? walls.aurora;
  const vars = {
    "--lg-blur": `${blur}px`,
    "--lg-a": light ? Math.min(0.6, opacity / 100 + 0.23) : opacity / 100,
    "--lg-shine": shine / 100,
  } as CSSProperties;

  return (
    <div
      className={`lg-font overflow-hidden rounded-[22px] ${className} ${light ? "lg-light" : ""}`}
      style={vars}
    >
      <style>{glassCss}</style>
      <div className="absolute inset-0 overflow-hidden" style={{ background: wall.base }}>
        <div className="absolute inset-0" style={{ filter: "blur(60px)" }}>
          {wall.blobs.map((color, i) => (
            <div
              key={i}
              className="absolute h-[75%] w-[75%] rounded-full"
              style={{
                left: blobPositions[i]?.[0],
                top: blobPositions[i]?.[1],
                background: `radial-gradient(circle, ${color} 0%, transparent 68%)`,
                opacity: light ? 1 : 0.9,
                animation: `lg-drift 20s ease-in-out ${-i * 6}s infinite`,
              }}
            />
          ))}
        </div>
        <div
          className="absolute inset-0"
          style={{ backgroundImage: grain, opacity: 0.04, mixBlendMode: "overlay" }}
        />
      </div>
      <div className="relative grid h-full w-full grid-cols-[100%] place-items-center p-4">{children}</div>
    </div>
  );
}

interface GlassToggleProps {
  label?: string;
  bg?: Wallpaper;
  blur?: number;
  opacity?: number;
  shine?: number;
}

export default function GlassToggle({
  label = "Focus mode",
  bg = "aurora",
  blur = 20,
  opacity = 12,
  shine = 25,
}: GlassToggleProps) {
  const glass = { bg, blur, opacity, shine };
  const [on, setOn] = useState(true);
  const [moving, setMoving] = useState(false);

  // La gota se estira un momento mientras se desplaza
  const flip = () => {
    setMoving(true);
    setOn((o) => !o);
    setTimeout(() => setMoving(false), 180);
  };

  return (
    <Stage {...glass}>
      <div className="flex flex-col items-center gap-5">
        <motion.button
          type="button"
          role="switch"
          aria-checked={on}
          aria-label={label}
          onClick={flip}
          onMouseMove={track}
          whileTap={{ scale: 0.95 }}
          transition={spring}
          className="lg-glass rounded-full"
          style={{
            width: 64,
            height: 28,
            transition: "background-color .3s",
            ...(on ? { background: "#34c759" } : {}),
          }}
        >
          <motion.span
            className="absolute left-[2px] top-[2px] z-[3] block h-6 w-6 rounded-full"
            animate={{ x: on ? 36 : 0, scaleX: moving ? 1.3 : 1 }}
            transition={spring}
            style={{
              originX: on ? 1 : 0,
              background: "radial-gradient(circle at 35% 30%, #fff 0%, rgba(255,255,255,.92) 55%, rgba(240,240,245,.85) 100%)",
              boxShadow: "0 3px 8px rgba(0,0,0,.18), inset 0 -1px 2px rgba(0,0,0,.06), inset 0 1px 1px #fff",
            }}
          />
        </motion.button>
        <span className="lg-text text-[15px] font-medium">{label}</span>
      </div>
    </Stage>
  );
}
```

## Prompt for AI assistants

Paste this into ChatGPT, Claude, Cursor, v0 or Lovable to adapt the block to your stack (Tailwind, Vue, Svelte…):

````text
I want to add the “Glass toggle” block (Liquid Glass) from AIMRAN Library to my project.

## What it is
An iOS-style switch whose glass knob stretches like a drop of water as it slides across.

## Chosen settings
- Text: "Focus mode"
- Background: Aurora (other options: Sunset, Ocean, Light)
- Blur: 20px (from 4 to 40px)
- Glass opacity: 12% (from 4 to 40%)
- Shine: 25% (from 0 to 60%)

## What I need
1. Add it to my project with the same look and animation as the reference code: same sizes, colours, radii, shadows, timings and easing.
2. It is built with React + TypeScript, with framer-motion for the animation and lucide-react for the icons. If my project uses something else (Vue, Svelte, Astro, plain HTML…), translate it without losing any behaviour. If I use Tailwind, turn the styles into classes; if not, keep the CSS in its own file.
3. Expose the settings above as props (or CSS variables) with those values as defaults.
4. Make it work well on phones: nothing that depends only on hover, touch targets of at least 44 px and no overflow on 320 px screens.
5. Make it look right in light and dark mode.
6. Keep it accessible: semantic HTML, roles and aria-* where needed, visible focus and keyboard support.
7. Respect prefers-reduced-motion: with reduced motion, no big animations but the same end result.

## Reference code
```tsx
import { useState, type CSSProperties, type MouseEvent, type ReactNode } from "react";
import { motion } from "framer-motion";

type Wallpaper = "aurora" | "sunset" | "ocean" | "light";

const spring = { type: "spring" as const, stiffness: 400, damping: 30 };

const walls: Record<Wallpaper, { base: string; blobs: string[] }> = {
  aurora: { base: "#0b0b1a", blobs: ["#5b21b6", "#2563eb", "#ec4899"] },
  sunset: { base: "#1a0b14", blobs: ["#f97316", "#f43f5e", "#8b5cf6"] },
  ocean: { base: "#031a1f", blobs: ["#06b6d4", "#3b82f6", "#10b981"] },
  light: { base: "#f8fafc", blobs: ["#fed7aa", "#ddd6fe", "#bae6fd"] },
};

const blobPositions = [
  ["-10%", "-15%"],
  ["45%", "5%"],
  ["5%", "50%"],
];

const grain = "url(\"data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E\")";

const glassCss = `
.lg-font {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", sans-serif;
  -webkit-font-smoothing: antialiased;
}
.lg-glass {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, var(--lg-a, 0.12));
  -webkit-backdrop-filter: blur(var(--lg-blur, 20px)) saturate(180%);
  backdrop-filter: blur(var(--lg-blur, 20px)) saturate(180%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 20px rgba(255, 255, 255, 0.08),
    0 8px 32px rgba(0, 0, 0, 0.18);
}
/* Borde de luz */
.lg-glass::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.05) 40%, rgba(255, 255, 255, 0.05) 60%, rgba(255, 255, 255, 0.4));
  mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
}
/* Reflejo que sigue al cursor (--x / --y los pone track()) */
.lg-glass::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  pointer-events: none;
  opacity: var(--lg-hover, 0);
  transition: opacity 0.3s;
  background: radial-gradient(circle 140px at var(--x, 50%) var(--y, 0%), rgba(255, 255, 255, var(--lg-shine, 0.25)), transparent 70%);
}
.lg-glass:hover {
  --lg-hover: 1;
}
.lg-text {
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.18);
}
.lg-light .lg-text {
  color: #1d1d1f;
  text-shadow: none;
}
@keyframes lg-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(8%, -6%) scale(1.12); }
  66% { transform: translate(-6%, 7%) scale(0.94); }
}
`;

// Guarda la posición del cursor para el reflejo de .lg-glass::after
function track(e: MouseEvent<HTMLElement>) {
  const r = e.currentTarget.getBoundingClientRect();
  e.currentTarget.style.setProperty("--x", `${e.clientX - r.left}px`);
  e.currentTarget.style.setProperty("--y", `${e.clientY - r.top}px`);
}

interface StageProps {
  bg: Wallpaper;
  blur: number;
  opacity: number;
  shine: number;
  className?: string;
  children: ReactNode;
}

// Fondo de degradado animado sobre el que se ve el cristal
function Stage({
  bg,
  blur,
  opacity,
  shine,
  className = "relative h-[560px] w-full",
  children,
}: StageProps) {
  const light = bg === "light";
  const wall = walls[bg] ?? walls.aurora;
  const vars = {
    "--lg-blur": `${blur}px`,
    "--lg-a": light ? Math.min(0.6, opacity / 100 + 0.23) : opacity / 100,
    "--lg-shine": shine / 100,
  } as CSSProperties;

  return (
    <div
      className={`lg-font overflow-hidden rounded-[22px] ${className} ${light ? "lg-light" : ""}`}
      style={vars}
    >
      <style>{glassCss}</style>
      <div className="absolute inset-0 overflow-hidden" style={{ background: wall.base }}>
        <div className="absolute inset-0" style={{ filter: "blur(60px)" }}>
          {wall.blobs.map((color, i) => (
            <div
              key={i}
              className="absolute h-[75%] w-[75%] rounded-full"
              style={{
                left: blobPositions[i]?.[0],
                top: blobPositions[i]?.[1],
                background: `radial-gradient(circle, ${color} 0%, transparent 68%)`,
                opacity: light ? 1 : 0.9,
                animation: `lg-drift 20s ease-in-out ${-i * 6}s infinite`,
              }}
            />
          ))}
        </div>
        <div
          className="absolute inset-0"
          style={{ backgroundImage: grain, opacity: 0.04, mixBlendMode: "overlay" }}
        />
      </div>
      <div className="relative grid h-full w-full grid-cols-[100%] place-items-center p-4">{children}</div>
    </div>
  );
}

interface GlassToggleProps {
  label?: string;
  bg?: Wallpaper;
  blur?: number;
  opacity?: number;
  shine?: number;
}

export default function GlassToggle({
  label = "Focus mode",
  bg = "aurora",
  blur = 20,
  opacity = 12,
  shine = 25,
}: GlassToggleProps) {
  const glass = { bg, blur, opacity, shine };
  const [on, setOn] = useState(true);
  const [moving, setMoving] = useState(false);

  // La gota se estira un momento mientras se desplaza
  const flip = () => {
    setMoving(true);
    setOn((o) => !o);
    setTimeout(() => setMoving(false), 180);
  };

  return (
    <Stage {...glass}>
      <div className="flex flex-col items-center gap-5">
        <motion.button
          type="button"
          role="switch"
          aria-checked={on}
          aria-label={label}
          onClick={flip}
          onMouseMove={track}
          whileTap={{ scale: 0.95 }}
          transition={spring}
          className="lg-glass rounded-full"
          style={{
            width: 64,
            height: 28,
            transition: "background-color .3s",
            ...(on ? { background: "#34c759" } : {}),
          }}
        >
          <motion.span
            className="absolute left-[2px] top-[2px] z-[3] block h-6 w-6 rounded-full"
            animate={{ x: on ? 36 : 0, scaleX: moving ? 1.3 : 1 }}
            transition={spring}
            style={{
              originX: on ? 1 : 0,
              background: "radial-gradient(circle at 35% 30%, #fff 0%, rgba(255,255,255,.92) 55%, rgba(240,240,245,.85) 100%)",
              boxShadow: "0 3px 8px rgba(0,0,0,.18), inset 0 -1px 2px rgba(0,0,0,.06), inset 0 1px 1px #fff",
            }}
          />
        </motion.button>
        <span className="lg-text text-[15px] font-medium">{label}</span>
      </div>
    </Stage>
  );
}
```

Give me the complete final code, ready to paste, and tell me in one line where to put it in my project.
````