style.css

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'League Spartan', sans-serif;
}
:root {

    --dk-violet: hsl(249, 72%, 11%);
    --lt-violet: hsl(297, 63%, 71%);
    --lt-violet2: hsla(300, 89%, 26%, 0.322);
    --vb-violet: hsl(303, 77%, 21%);
    --vb-violet2: hsl(290, 70%, 36%);
  
    --vb-yellow: hsla(98, 100%, 50%, 0.957);
  
  
    --pl-white: hsla(0, 0%, 100%, 0.854);
  
    --vb-cyan: hsl(72, 100%, 51%);
    --vb-cyan2: hsl(177, 92%, 70%);
    --dk-text: hsl(198, 20%, 13%);
}
body {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(231deg, rgba(22, 6, 40, 1) 0%, rgb(35, 3, 72) 50%, rgba(88, 7, 125, 1) 100%);
}
h1 {
    color: rgb(172, 199, 241);
    opacity: 0.75;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-align: center;
    line-height: 1.2;
}
.display-container {
    position: relative;
    background-color: var(--dk-violet);
    border-radius: 1rem;
    border-bottom: 0.35rem solid var(--lt-violet2);
    margin: 1rem 0;
    padding-top: 0.35rem;
}
.display {
    width: 100%;
    background-color: transparent;
    padding: 1.15rem 1rem;
    color: var(--vb-yellow);
    font-weight: 600;
    font-size: 1.5rem;
    line-height: 30px;
    letter-spacing: 1px;
    padding-right: 3.25rem;
    border:none;
  }
.display::placeholder {
    position:absolute;
    top: 50%;
    left: 1.5rem;
    font-size: 1.5rem;
    line-height:30px;
    color:var(--vb-yellow);
    opacity: 0.65;
    text-transform: uppercase;
    transform: translateY(-50%);
}
.display-container button {
    position:absolute;
    top:50%;
    right:1.5rem;
    transform: translateY(-50%);
}
.input-container{
    width:100%;
    background-color: var(--dk-violet);
    border-radius: 1rem;
    padding: 2rem;
    border-bottom: 0.35rem solid var(--lt-violet2);
}
.length-container {
    display: flex;
    justify-content: space-evenly ;
    align-items: center;
}

.length-container p:nth-child(1) {
    color:whitesmoke;
    font-size: 1.5rem;
}
.length-container p:nth-child(2) {
    color:yellowgreen;
    font-size: 1.5rem;
}
.strength-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.75rem;
    margin-bottom: 2rem;
}

.strength-container p{
    color:rgb(180, 203, 3);
    font-size: 1.5rem;
}
.indicator {
    width:1.5rem;
    height:1.5rem;
    border-radius:50%;
}
.generateButton {
    width: 100%;
    padding: 1rem 0;
    background-color: blanchedalmond;
    text-align: center;
    border-radius: 0.75rem;
    border-bottom: 0.35rem blue;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: darkred;
    font-weight: 600;
    font-size: 1.25rem;
  }
  .check {
    display: flex;
    align-items: center;
    margin: 1rem 0;
    gap: 0 1rem;
}

.check input{
    appearance: none;
    width: 20px;
    height: 20px;
    border: 1px solid var(--vb-cyan);
    cursor: pointer;
    position: relative;
    border-radius: 0.35rem;
}


.check input:checked{
    background-color: var(--vb-cyan);
}


.check input:checked::before {
    content: '✔';
    position: absolute;
    color: var(--dk-text);
    font-size:1.05rem;
    font-weight: 600;
    left:50%;
    top:-9.5px;
    transform: translateX(-50%)  translateY(40%);
}

.check label {
    color: var(--pl-white);
    font-size: 1.25rem;
    letter-spacing: 0.75px;
}

.copyBtn{
    background-color: transparent;
    border:none;
    outline:none;
}

.tooltip {
    position: absolute;
    background-color: var(--vb-violet2);
    color: var(--vb-yellow);
    font-size: 1.25rem;
    top: -35px;
    left: -25px;
    padding: 5px 10px;
    border-radius: 1rem;
    opacity: 0;
    transform: scale(0);
    transform-origin: bottom;
    transition: all 250ms ease-in-out;
  }
  
  .tooltip.active {
    opacity: 1;
    transform: scale(1);
  }

.slider{
    appearance: none;
    width:100%;
    height: 0.75rem;
    cursor: pointer;
    background-color: var(--lt-violet);
    border-radius: 1rem;
    margin-top: 2rem;
    margin-bottom: 1.5rem;
    background-image: linear-gradient(var(--vb-violet), var(--vb-violet));
    background-repeat: no-repeat;
    border:none;
    outline:none;
    z-index:-1;
}

.slider::-webkit-slider-thumb {
    position:relative;
    z-index:1;
    appearance: none;
    height:2rem;
    width:2rem;
    border-radius: 50%;
    background-color: var(--vb-yellow);
    cursor:pointer;
    margin-top: -3px;
    box-shadow: 0px 0px 20px 0px rgba(238, 218, 91, 0.89);
    transition: all 100ms ease-in;
}

.slider:focus{
    outline: 3px solid var(--vb-yellow);
}

.slider::-webkit-slider-thumb:hover{
    outline: 2px solid var(--vb-yellow);
    background-color: var(--dk-violet);
    box-shadow: 0px 0px 25px 5px rgba(255, 229, 61, 0.80);
}