* {
    box-sizing: border-box;
  }
  
  :root {
    --background-color: hsl(208.7, 100%, 89%);
    --shadow-color: hsla(208.7, 100%, 10%, 0.2);
  
    background-color: var(--background-color);
  }
  
  body {
    margin: 0;
    display: flex;
    flex-direction: column;
    min-width: 320px;
    justify-content: center;
    display: flex;
    align-items: flex-start;
    gap: 40px 0;
    padding: 200px 44px 0;
  }
  
  .transition-color-picker {
    --last-transition-color: inherit;
    --color-size: 80px;
    display: flex;
    position: relative;
  }
  
  .transition-color-picker__helper {
    width: calc(var(--color-size) * 0.5);
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 0;
    left: calc(var(--color-size) * 0.25);
    z-index: 3;
    animation: 1s helper infinite;
  }
  
  .transition-color-picker__helper svg {
    height: 100%;
  }
  
  .transition-color-picker__back-color {
    pointer-events: none;
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: var(--full-width);
    height: var(--color-size);
    background: var(--last-transition-color);
    z-index: 0;
    border-radius: 10px;
  }
  
  .transition-color-picker__shadow {
    position: absolute;
    left: 0;
    top: 0;
    width: var(--full-width);
    height: 100%;
    display: block;
    pointer-events: none;
    z-index: 0;
    box-shadow: 0 20px 25px -5px var(--shadow-color),
      0 8px 10px -6px var(--shadow-color);
    border-radius: 4px;
  }
  
  .transition-color-picker__container {
    display: flex;
    z-index: 1;
  }
  
  .transition-color-picker__color {
    min-width: var(--color-size);
    height: var(--color-size);
    background: var(--color);
    cursor: pointer;
  }
  
  .transition-color-picker__from-color {
    border-radius: 4px 0 0 4px;
    position: relative;
    touch-action: none;
    z-index: 1;
  }
  
  .transition-color-picker__to-color {
    border-radius: 0 4px 4px 0;
    position: relative;
    left: 0;
    z-index: 1;
    touch-action: none;
  }
  
  .transition-color-picker__color:hover .transition-color-picker__icon {
    opacity: 1;
  }
  
  .transition-color-picker__copy-icon svg {
    position: absolute;
    transition: 0.25s ease opacity;
  }
  
  .transition-color-picker__icon {
    opacity: 0;
    color: white;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: 0.25s ease opacity;
    background: rgba(0, 0, 0, 0.4);
  }
  
  .transition-color-picker__to-color .transition-color-picker__icon {
    border-radius: 0 4px 4px 0;
  }
  
  .transition-color-picker__from-color .transition-color-picker__icon {
    border-radius: 4px 0 0 4px;
  }
  
  .transition-color-picker__icon svg {
    height: 50%;
  }
  
  .transition-color-picker__to-color,
  .transition-color-picker__to-color .transition-color-picker__input {
    cursor: grab;
  }
  
  .transition-color-picker__to-color--dragging,
  .transition-color-picker__to-color--dragging .transition-color-picker__input {
    cursor: grabbing;
  }
  
  .transition-color-picker__input {
    position: absolute;
    opacity: 0;
    inset: 0;
    left: 0;
    top: 0;
  }
  
  .transition-color-picker__input--animatable {
    transition: 0.25s ease all;
  }
  
  @keyframes helper {
    to {
      transform: translateX(100px);
    }
  }
  
  @media (max-width: 550px) {
    .transition-color-picker:nth-child(3) {
      display: none;
    }
  }
  
  @media (max-width: 400px) {
    .transition-color-picker:nth-child(2) {
      display: none;
    }
    .transition-color-picker {
      --color-size: 44px;
    }
  }