.btn,
.button-4 {
  font-family: Arial, Helvetica, sans-serif;
  text-transform: uppercase;
  background-position: 50% 0, 50% 0 !important;
  background-size: 0% 100%, 0% 100% !important;
  background-color: transparent !important;
  gap: 0.55rem;
  min-height: 44px;
  padding: 12px 18px;
  border-radius: 12px;
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial,
    sans-serif;
  --bg: url("../assets/img/about_page/about_cta.jpg");
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  -webkit-font-smoothing: antialiased;
  user-select: none;
  cursor: pointer;
  --pink: #ff3ea5;
  --btn-fill: #000;
}
.btn:hover .btn-slide-show-text1,
.button-4:hover .btn-slide-show-text1 {
  margin-left: 65px;
}
.fill-center,
.button-4 {
  left: 0px;
  text-decoration: none;
  cursor: pointer;
  border-radius: 8px;
  height: 50px;
  width: 180px;
  padding: 0px;
  outline: none;
  overflow: hidden;
  position: relative;
  transition: color 0.3s ease-out 0.1s;
}
.fill-center::before,
.button-4::before {
  position: absolute;
  top: 0px;
  right: 0px;
  bottom: 0px;
  margin: auto;
  text-align: center;
  content: "";
  border-radius: 50%;
  display: block;
  width: 20em;
  height: 20em;
  line-height: 20em;
  left: -3em;
  transition: box-shadow 0.5s ease-out;
  z-index: -1;
}
.fill-center:hover,
.button-4:hover {
  color: rgb(255, 255, 255);
  background: transparent;
}
.fill-center,
.button-4 {
  border: 1px solid var(--button-4-border-color, --pink);
  color: var(--button-4-color, --pink);
}
.fill-center:hover::before,
.button-4:hover::before {
  box-shadow: var(--button-4-color, --pink) 0px 0px 0px 11em inset;
}