Box-shadow is being cut out, how is this fixed?

[javascriptcoding5678]

After getting the image code perfect, I see a noticeable difference between the 2 codes

gradient code:
https://jsfiddle.net/ny10q69r/8/

After clicking on the gradient code, it magnifies the image.

Question: Would I be able to give the gradient a set width and height of 1920 x 1080?

Is this something that is possible to do?

[javascriptcoding5678]

You can see the box-shadow is being cut out of the image on all 4 sides.

How do I fix it so that the image isn’t being cut off on all 4 sides.?

Why is this happening and what will fix it?

Is there a solution that will fix this issue?

https://jsfiddle.net/eho5w403/

.curtain {
  width: 550px;
  height: 250px;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  background: white;
  box-sizing: border-box;
}

.jacketa {
  position: absolute;
  width: 180px;
  height: 180px;
  cursor: pointer;
  border-radius: 50%;
  background: #130e85;
  border: 3px solid #f91f6e;
  box-sizing: border-box;
  box-shadow: 0 0 20px 2px #f9066bf7;
   
}
.jacketa .coversvg {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  margin: auto;
  cursor: pointer;
}
.jacketa .coversvg {
  width: 70px;
  height: 75.4px;
  fill: none;
  stroke-width: 4px;
  stroke-miterlimit: 10;
}

.jacketa .coversvg .back {
  stroke: #000;
  opacity: 0.15;
}

.jacketa .coversvg .front {
  stroke: #08f9ff;
  stroke-dasharray: 150;
  stroke-dashoffset: 1500;
  animation: draw 20s infinite linear, flicker-1 2s linear 2s infinite both;
}

@keyframes draw {
  100% {
    stroke-dashoffset: 0;
  }

  100% {
    stroke-dashoffset: 0;
  }
}

@keyframes flicker-1 {
  0%,
  100% {
    opacity: 1;
  }

  41.99% {
    opacity: 1;
  }

  42% {
    opacity: 0;
  }

  43% {
    opacity: 0;
  }

  43.01% {
    opacity: 1;
  }

  47.99% {
    opacity: 1;
  }

  48% {
    opacity: 0;
  }

  49% {
    opacity: 0;
  }

  49.01% {
    opacity: 1;
  }
}

.split-wrap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 180px;
  height: 180px;
  margin: auto;
  border-radius: 50%;
  transition: 0.5s ease;
}

.j1 {
  position: absolute;
  left: 0;
  top: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  transition: 5s ease;
}
.j2 {
  position: absolute;
  left: 50%;
  top: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  transition: 5s ease;
}
.j2 .jacketa {
  right: 0;
  left: auto;
}
.curtain:hover .j1 {
  transform: translateX(-500%);
}
.curtain:hover .j2 {
  transform: translateX(500%);
}