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HTML 

              
                <header>
			<div class="title">
				<h2 class="better">Better</h2>
				<h1>Neumorphism</h1>
			</div>
		</header>
		<main>
			<div class="container">
				<div class="icon">i</div>
				<div class="info-container">
					<div class="info">
						<h2>
							Welcome to <span class="sub-title">Better</span> NEUMORPHISM!
						</h2>
						<p>
							This app was created to improve upon other neumorphism generators
							by implementing 2 unique tactics:
						</p>
						<ul>
							<li>HSL implementation</li>
							<li>Accommodation of rounded edges in UI elements</li>
						</ul>
						<p>
							Using HSL colors allows us to interact uniquely with the luminance
							of the UI and provides a much more cohesive feeling to the
							elements. Try luminance values between 50% and 90% for best
							results.
						</p>
						<p>
							Adding the ability to control rounded edges, or ramp, gives
							designers more flexibility into the finer details of UI elements.
							The effect can be subtle...or extreme.
						</p>
						<p>
							I hope you like this take on neumorphism generators and find this tool
							useful.
						</p>
						<div class="links">
							<a href="https://drucial.com" target="_blank" class="info-link">Drucial</a>
							<a href="https://codepen.io/drucial/pen/rNjJLWz" target="_blank" class="info-link">CodePen</a>
							<a href="https://github.com/Drucial/Neumorphism-Generator" target="_blank" class="info-link">GitHub</a>
						</div>
					</div>
				</div>
				<div class="slider-container">
					<div class="form-group">
						<label for="color">Color:</label>
						<div class="color">
							<p>hsl(&nbsp;</p>
							<input
								type="number"
								min="0"
								max="360"
								class="hsl-input"
								id="hue"
								placeholder="0-360"
							/>
							<input
								type="number"
								min="0"
								max="100"
								class="hsl-input"
								id="saturation"
								placeholder="%"
							/>
							<input
								type="number"
								min="20"
								max="90"
								class="hsl-input"
								id="luminance"
								placeholder="%"
							/>
							<p>&nbsp;)</p>
							<button id="color-btn" onclick="colorRandomizer()">Random</button>
						</div>
					</div>
					<div class="form-group">
						<label for="neu-depth">Depth</label>
						<input
							type="range"
							min="1"
							max="15"
							step="0.01"
							value="8"
							class="slider"
							id="neu-depth"
						/>
					</div>
					<div class="form-group">
						<label for="neu-strength">Strength</label>
						<input
							type="range"
							min="1.05"
							max="1.3"
							value="1.2"
							step="0.001"
							class="slider"
							id="neu-strength"
						/>
					</div>
					<div class="form-group">
						<label for="neu-edges">Edges</label>
						<input
							type="range"
							min="0"
							max="2"
							value=".2"
							step="0.01"
							class="slider"
							id="neu-edges"
						/>
					</div>
					<div class="form-group">
						<label for="neu-direction">Direction</label>
						<input
							type="range"
							class="slider"
							id="neu-direction"
							min="-1"
							max="1"
							step="0.01"
							value="-1"
						/>
					</div>
					<div class="form-group output">
						<label for="neuSize">Output</label>
						<div class="code">
							<code id="source">
								<p>box-shadow:</p>
								<p class="code-line">&nbsp;</p>
								<p class="code-line">&nbsp;</p>
								<p class="code-line">&nbsp;</p>
								<p class="code-line">&nbsp;</p>
							</code>
							<div class="tool-tip" id="toolTip">
								<p>Click to Copy</p>
							</div>
						</div>
					</div>
				</div>
			</div>
		</main>
!

CSS 

              
                /* Global Site Elements */
:root {
	--box-h: 207;
	--box-s: 15%;
	--box-l: 80%;
	--direction: -32deg;
	--direction-reverse: -212deg;
	--box-source: calc(var(--box-l) + 10%);
	--box-dark: calc(var(--box-l) - 15%);
	--box-light: calc(var(--box-l) + 15%);
	--text-color: hsl(var(--box-h), var(--box-s), calc(var(--box-l) - 40%));
	--text-light: hsl(var(--box-h), var(--box-s), calc(var(--box-l) - 25%));
	--box-color: hsl(var(--box-h), var(--box-s), var(--box-l));
	--color-dark: hsl(var(--box-h), var(--box-s), var(--box-dark));
	--color-light: hsl(var(--box-h), var(--box-s), var(--box-light));
	--color-gradient: var(--direction), var(--color-light), var(--color-dark);
	--reverse-gradient: var(--direction-reverse), var(--color-light), var(--color-dark);

	--shadow-x: 3px;
	--shadow-distance: 3px;
	--shadow-ramp: 6px;
	--shadow-color: rgba(0 0 0 / .2);
	--actual-shadow: var(--shadow-x) var(--shadow-distance) var(--shadow-ramp) var(--shadow-color);

	--hl-strength: calc(var(--box-l) * 1.2);
	--shd-strength: calc(var(--box-l) * (1 - (1.2 - 1)));
	--neu-x: 7.5px;
	--neu-neg-x: -7.5px;
	--neu-distance: 7.5px;
	--neu-neg-dist: -7.5px;
	--neu-ramp: 18.75px;
	--highlight: hsl(var(--box-h), var(--box-s), var(--hl-strength));
	--shadow: hsl(var(--box-h), var(--box-s), var(--shd-strength));

	--neu-outer: 
		var(--neu-x) var(--neu-distance) var(--neu-ramp) var(--shadow),
		var(--neu-neg-x) var(--neu-neg-dist) var(--neu-ramp) var(--highlight);

	--neu-outer-small: 
		var(--neu-x-small) var(--neu-distance-small) var(--neu-ramp-small) var(--shadow),
		var(--neu-neg-x-small) var(--neu-neg-dist-small) var(--neu-ramp-small) var(--highlight);

	--neu-inner: 
		inset var(--neu-x) var(--neu-distance) var(--neu-ramp) var(--shadow),
		inset var(--neu-neg-x) var(--neu-neg-dist) var(--neu-ramp) var(--highlight);

	--neu-inner-small: 
		inset var(--neu-x-small) var(--neu-distance-small) var(--neu-ramp-small) var(--shadow),
		inset var(--neu-neg-x-small) var(--neu-neg-dist-small) var(--neu-ramp-small) var(--highlight);

	--edge-x: 0px;
	--edge-neg-x: 0px;
	--edge-dist: 0px;
	--edge-neg-dist: 0px;
	--edge-ramp: 0px;

	--neu-edges: 
    	inset var(--edge-neg-x) var(--edge-neg-dist) var(--edge-ramp) var(--shadow),
		inset var(--edge-x) var(--edge-dist) var(--edge-ramp) var(--highlight);
	--neu-edges-outer: 
    	var(--edge-neg-x) var(--edge-neg-dist) var(--edge-ramp) var(--shadow),
		var(--edge-x) var(--edge-dist) var(--edge-ramp) var(--highlight);

	--radius: 1rem;
	--neu-size: 50%;
	--neu-radius: 1rem;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	height: 100vh;
	height: calc(var(--vh, 1vh) * 100);
	font-family: 'Inter', sans-serif;
	font-size: 18px;
	font-weight: 400;
	color: var(--text-color);
	overflow-x: hidden;
}

body {
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	background: var(--box-color);
	background: 
	linear-gradient(
		var(--direction), 
		var(--box-color)70%, 
		hsl(var(--box-h), var(--box-s), var(--box-source)))
}

header {
	padding: 1rem;
}

.title {
	display: flex;
	position: relative;
	font-size: 2rem;
}

.better {
	font-family: 'Satisfy', cursive;
	transform: rotate(-35deg);
	position: absolute;
	top: -.75em;
	left: -1.25em;

}

h1 {
	font-weight: 900;
	text-transform: uppercase;
}

main {
	display: grid;
	place-items: center;
}

.container {
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-height: 100%;
	padding: 1rem;
	position: relative;
	z-index: 1;
}

.slider-container {
	padding: 2rem 2rem;
	background: var(--box-color);
	border-radius: var(--neu-radius);
	box-shadow: var(--neu-outer), var(--neu-edges);
	position: relative;
}

.form-group {
	display: grid;
	align-items: center;
	grid-template-columns: 1fr 5fr;
	padding: 0.5rem 0;
}

.color {
	display: flex;
	align-items: center;
	gap: 1rem;
	color: var(--text-light);
}

.hsl-input {
	-webkit-appearance: none;
	height: 2rem;
	width: 4rem;
	/* margin: 0 0.5rem; */
	padding: 1rem;
	color: var(--text-light);
	text-align: center;
	border: none;
	border-radius: 1rem;
	background: var(--box-color);
	box-shadow: var(--neu-inner),
	var(--neu-edges-outer);
}

.hsl-input::placeholder {
	color: var(--text-light);
	text-align: center;
}

.hsl-input::-webkit-outer-spin-button,
.hsl-input::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

#color-btn {
	font-family: 'Satisfy', cursive;
	font-size: 1rem;
	color: var(--text-color);
	background: var(--box-color);
	padding: .4rem 2rem;
	margin-left: .5rem;
	border: none;
	border-radius: var(--radius);
	box-shadow: 
		var(--neu-outer-small),
		var(--neu-edges);
	cursor: pointer;

	position: relative;
}

#color-btn::after {
	position: absolute;
	content: '';
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	border-radius: var(--radius);
	box-shadow: 
		var(--neu-inner-small),
		var(--neu-edges-outer);
	opacity: 0;
	transition: opacity 300ms;
}

#color-btn:active {
	box-shadow: none;
	transform: scale(.98);
}

#color-btn:active::after {
	opacity: 1;
	transform: scale(1)
  }

.slider {
	-webkit-appearance: none;
	appearance: none;
	outline: none;
	height: 2rem;
	border-radius: 1rem;
	background: var(--box-color);
	box-shadow: var(--neu-inner),
				var(--neu-edges-outer);
	position: relative;
}

.slider::before {
	position: absolute;
	content: "";
	width: 92%;
	height: 5px;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	background: var(--text-color);
	border-radius: 1rem;
	z-index: 1;
}

.slider::-webkit-slider-thumb {
	-webkit-appearance: none;
	appearance: none;
	width: 2rem;
	height: 2rem;
	background: var(--box-color);
	background: linear-gradient(var(--color-gradient));
	box-shadow: 
		var(--neu-edges),
		var(--actual-shadow);
	border-radius: 1rem;
	border: none;
	cursor: pointer;
	position: relative;
	z-index: 2;
}

.slider::-moz-range-thumb {
	width: 2rem;
	height: 2rem;
	background: var(--box-color);
	box-shadow: 
		inset 1px 1px 3px var(--highlight),
		inset -1px -1px 3px var(--shadow), 
		3px 3px 5px var(--shadow);
	border-radius: 1rem;
	border: none;
	cursor: pointer;
	position: relative;
	z-index: 2;
}

.code {
	padding: 1rem;
	width: 50ch;
	color: var(--text-light);
	background: var(--box-color);
	box-shadow: var(--neu-inner),var(--neu-edges-outer);
	border-radius: 1rem;
	position: relative;

}

code p:not(:first-child){
	font-size: 14px;
	margin-left: 1rem;
}

#icon {
  display: none;
}

.tool-tip {
  opacity: 0;
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
  color: var(--text-color);
  background: var(--box-color);
  font-weight: bold;
  border-radius: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all .25s ease-in-out;
}

.icon {
	position: absolute;
	right: 2rem;
	top: 2rem;
	width: 30px;
	height: 30px;
	border-radius: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: 
		var(--neu-outer-small);
	background: var(--box-color);
	z-index: 5;
	cursor: pointer;
	user-select: none;
	-webkit-touch-callout: none;
	-webkit-user-select: none;
}

.icon-close {
	box-shadow: 
		var(--neu-outer-small),
		var(--neu-edges);
	background: linear-gradient(var(--color-gradient));
}

.icon::after {
	position: absolute;
	content: '';
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	border-radius: var(--radius);
	box-shadow: 
		var(--neu-inner-small),
		var(--neu-edges-outer);
	opacity: 0;
	transition: opacity 300ms;
}

.icon:active {
	box-shadow: none;
	transform: scale(.98);
}

.icon:active::after {
	opacity: 1;
	transform: scale(1)
  }

.info-container {
	display: none;
	position: absolute;
	top: 0;
	bottom: 0;
	right: 0;
	left: 0;
	padding: 1rem;
	z-index: 4;
}

.show {
	display: block
}

.info {
	z-index: 5;
	background: var(--box-color);
	width: 100%;
	height: 100%;
	border-radius: var(--neu-radius);
	box-shadow: var(--neu-edges);
	padding: 2rem;
	overflow-y: scroll;
	-ms-overflow-style: none;
	scrollbar-width: none;
}

.info::-webkit-scrollbar {
	display: none;
}

.sub-title, .info-link {
	font-family: 'Satisfy', cursive;
}

.info p, ul {
	margin-top: .5rem;
}

ul {
	margin-left: 1rem;
}

.links {
	width: 100%;
	display: flex;
	gap: 1rem;
}

.info-link {
	color: var(--text-color);
	font-size: 1.5rem;
	padding: 1rem 0;
}

.info-link:hover,
.info-link:focus {
	color: var(--text-light)
}

@media only screen and (max-width: 747px) {
	header {
		padding-bottom: 0;
	}
	.title {
		font-size: 1rem;
		width: 100%;
		margin-top: 2rem;
		align-items: flex-end;
	}

	.slider-container {
		padding: 1rem 1rem;
		width: 90vw;
	}

	.form-group {
		grid-template-columns: 1fr;
	}

	label {
		margin-bottom: 0.25rem;
	}

	.color *:not(button) {
		display: none;
	}

	#color-btn {
		margin: 0;
	}

	.code {
		width: 100%;
		margin-top: .5rem;
		box-shadow: var(--neu-outer);
	}

	code {
		display: none;
	}

	.tool-tip{
		opacity: 1 !important;
		background: none;
	}

	.links {
		flex-direction: column;
		margin-top: .5rem;
		gap: 0;
	}

	.info-link {
		padding: 0;
	}
}
!

JS 

              
                // Mobile viewport Height Correction
let vh = window.innerHeight * 0.01;
document.documentElement.style.setProperty('--vh', `${vh}px`);

window.addEventListener('resize', () => {
  let vh = window.innerHeight * 0.01;
  document.documentElement.style.setProperty('--vh', `${vh}px`);
});

// Info Toggle
const icon = document.querySelector(".icon")
const info = document.querySelector(".info-container")

function toggleInfo() {
    if(info.classList.contains('show')){
        info.classList.remove('show');
        icon.classList.remove('icon-close')
        icon.innerText = "i"
    } else {
        info.classList.add('show');
        icon.classList.add('icon-close')
        icon.innerText = "X"
    }
}
icon.addEventListener("click", toggleInfo)

// Global Variables
const root = document.documentElement;
const neuDir = document.getElementById('neu-direction');
const neuDepth = document.getElementById('neu-depth');
const neuStrength = document.getElementById('neu-strength')
const neuEdges = document.getElementById('neu-edges');
const neuRadius = document.getElementById('neu-radius');

// Color Input
const hslInput = document.querySelectorAll('.hsl-input')
const hue = document.getElementById('hue')
const sat = document.getElementById('saturation')
const lum = document.getElementById('luminance')
// Validation

function hueVal(){
    if(hue.value === ''){
        return 
    } else if(parseInt(hue.value) > 360 || parseInt(hue.value) < 0 ){
        alert('Please enter a hue value between 0 and 360')
        hue.value = ""
        return
    } else {
        return true
    }
}
function satVal(){
    if(sat.value === ''){
        return 
    } else if(parseInt(sat.value) > 100 || parseInt(sat.value) < 0 ){
        alert('Please enter a saturation value between 0 and 100')
        sat.value = ""
        return 
    } else {
        return true
    }
}
function lumVal(){
    if(lum.value === ''){
        return 
    } else if(parseInt(lum.value) > 100 || parseInt(lum.value) < 0 ){
        alert('Please enter a luminance value between 20 and 90')
        lum.value = ""
        return
    } else {
        return true
    }
}
for(let i =0; i < hslInput.length; i++){
    hslInput[i].addEventListener("input", () => {
        hueVal();
        satVal();
        lumVal();
        if(hueVal() === true && satVal() === true && lumVal() === true){
            colorUpdate()
        } else {
            return
        }
    })
}

function colorUpdate() {
    const h = hue.value;
    const s = sat.value;
    const l = lum.value;
    document.documentElement.style.setProperty('--box-h', `${h}`);
    document.documentElement.style.setProperty('--box-s', `${s}%`);
    document.documentElement.style.setProperty('--box-l', `${l}%`);
    setDepth();
    setStrength();
    setEdges();
    setCss();
}

// Depth Slider
function setDepth() {
    neuDistance = neuDepth.value;
    neuDistanceSmall = neuDepth.value / 2;
    neuNeg = 1 - neuDistance
    neuNegSmall = 1 - neuDistanceSmall
    rampCalc = neuDistance * 2.5
    rampCalcSmall = (neuDistance * 2.5) / 2
    root.style.setProperty("--neu-distance", `${neuDistance}px`);
    root.style.setProperty("--neu-neg-dist", `${neuNeg}px`);
    root.style.setProperty("--neu-distance-small", `${neuDistanceSmall}px`);
    root.style.setProperty("--neu-neg-dist-small", `${neuNegSmall}px`);
    root.style.setProperty("--neu-ramp", `${rampCalc}px`);
    root.style.setProperty("--neu-ramp-small", `${rampCalcSmall}px`);
    setStrength()
    setDirection()
}
neuDepth.addEventListener("input", () => {
    setDepth();
    setCss()
});

// Strength Slider
function setStrength() {
    const multiplier = neuStrength.value;
    const staticLum = getComputedStyle(root).getPropertyValue('--box-l').split("%")[0]
    const lightCalc = (staticLum * multiplier)
    const darkCalc = (staticLum * (1 - (multiplier - 1)))
    root.style.setProperty("--hl-strength", `${lightCalc}%`);
    root.style.setProperty("--shd-strength", `${darkCalc}%`);
}
neuStrength.addEventListener("input", () => {
    setStrength();
    setCss()
});

// Edges Slider
function setEdges() {
    edgeDistance = neuEdges.value;
    edgeNeg = -1 * edgeDistance
    rampCalc = edgeDistance * 4
    root.style.setProperty("--edge-dist", `${edgeDistance}px`);
    root.style.setProperty("--edge-neg-dist", `${edgeNeg}px`);
    root.style.setProperty("--edge-ramp", `${rampCalc}px`);
    setDirection()
}
neuEdges.addEventListener("input", () => {
    setEdges();
    setCss()
});

// Direction Slider
// Yeah I know it looks like a bunch of giberish...but I was sleepy so...
function setDirection() {
    const neuDirection = parseFloat(neuDir.value);
    const gradientDirection = -32
    const gradDirOffset = - (gradientDirection * neuDirection);
    const x = parseFloat(getComputedStyle(root).getPropertyValue('--neu-distance').split('px')[0])
    const dirOffsetX = - (x * neuDirection)
    const dirNegOffsetX = (x * neuDirection)
    const dirOffsetXSmall = - (x * neuDirection) / 2
    const dirNegOffsetXSmall = (x * neuDirection) / 2
    const edgeX = parseFloat(getComputedStyle(root).getPropertyValue('--edge-dist').split('px')[0])
    const dirEdgeOffsetX = - (edgeX * neuDirection)
    const dirEdgeNegOffsetX = (edgeX * neuDirection)
    const shdX = parseFloat(getComputedStyle(root).getPropertyValue('--shadow-distance').split('px')[0])
    const shdOffsetX = - (shdX * neuDirection)
    root.style.setProperty("--neu-x", `${dirOffsetX}px`);
    root.style.setProperty("--neu-neg-x", `${dirNegOffsetX}px`);
    root.style.setProperty("--neu-x-small", `${dirOffsetXSmall}px`);
    root.style.setProperty("--neu-neg-x-small", `${dirNegOffsetXSmall}px`);
    root.style.setProperty("--direction", `${gradDirOffset}deg`);
    root.style.setProperty("--edge-x", `${dirEdgeOffsetX}px`);
    root.style.setProperty("--edge-neg-x", `${dirEdgeNegOffsetX}px`);
    root.style.setProperty("--shadow-x", `${shdOffsetX}px`);
    setStrength()
}
neuDir.addEventListener("input", () => {
    setDirection();
    setCss()
});

// Code Output
function setCss() {
    const neuContainer = document.querySelector('.slider-container')
    const codeLine = document.querySelectorAll('.code-line')
    styleOuter = window.getComputedStyle(neuContainer).getPropertyValue('--neu-outer');
    styleArrOne = styleOuter.split("), ")
    styleInner= window.getComputedStyle(neuContainer).getPropertyValue('--neu-edges');
    styleArrTwo = styleInner.split("), ")

    lineOne = `${styleArrOne[0]}),`
    lineTwo = `${styleArrOne[1]},`
    lineThree = `${styleArrTwo[0]}),`
    lineFour = `${styleArrTwo[1]};`

    for(let i = 0; i < codeLine.length; i++){
        codeLine[0].innerText = lineOne
        codeLine[1].innerText = lineTwo
        codeLine[2].innerText = lineThree
        codeLine[3].innerText = lineFour
    }
}

// Random Colors on Load
function colorRandomizer(){
    hStartup = Math.round(Math.random() * (360 - 0) + 0);
    sStartup = Math.round(Math.random() * (30 - 0) + 0);
    lStartup = Math.round(Math.random() * (80 - 60) + 60);
    root.style.setProperty("--box-h", `${hStartup}`);
    root.style.setProperty("--box-s", `${sStartup}%`);
    root.style.setProperty("--box-l", `${lStartup}%`)
    setDepth();
    setStrength();
    setEdges();
    setCss();
}
colorRandomizer()

//   Source Code Copy & Tool Tips 
const toolTip = document.getElementById("toolTip");
function alertCopy () {
    toolTip.style.setProperty("opacity", .85);
}
function copyToClipboard() {
    const source = document.getElementById('source').innerText;
    const text = source.split(/\r?\n|\r/g).join(' ')
    navigator.clipboard.writeText(text);
    toolTip.innerHTML = "Copied!";
}
function resetCopy() {
    toolTip.style.setProperty("opacity", 0);
    toolTip.innerHTML = "Click to Copy";
}
toolTip.addEventListener("mouseover", alertCopy)
toolTip.addEventListener("click", copyToClipboard)
toolTip.addEventListener("mouseout", resetCopy)
!
999px

Console