.button {
  /* in scss with just one variable i can change opacity with rgba(variable, opacity) but in css it's not possible so i have used three seperate variables */
  /* with hue-rotate color can be changed */
  --main-color: rgb(46, 213, 115);
  --main-bg-color: rgba(46, 213, 116, 0.36);
  --pattern-color: rgba(46, 213, 116, 0.073);

  /* change this rotation value */
  filter: hue-rotate(0deg);

  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5rem;
  background: radial-gradient(
      circle,
      var(--main-bg-color) 0%,
      rgba(0, 0, 0, 0) 95%
    ),
    linear-gradient(var(--pattern-color) 1px, transparent 1px),
    linear-gradient(to right, var(--pattern-color) 1px, transparent 1px);
  background-size:
    cover,
    15px 15px,
    15px 15px;
  background-position:
    center center,
    center center,
    center center;
  border-image: radial-gradient(
      circle,
      var(--main-color) 0%,
      rgba(0, 0, 0, 0) 100%
    )
    1;
  border-width: 1px 0 1px 0;
  color: var(--main-color);
  padding: 1rem 3rem;
  font-weight: 700;
  font-size: 1.5rem;
  transition: background-size 0.2s ease-in-out;
}

.button:hover {
  background-size:
    cover,
    10px 10px,
    10px 10px;
}
.button:active {
  filter: hue-rotate(250deg);
}