.glow-btn {
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  padding: 15px 40px;
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(45deg, #ff357a, #fff172, #2563eb);
  background-size: 200% 200%;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  position: relative;
  z-index: 1;
  transition: background 0.5s;
}
.glow-btn::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, #ff357a, #fff172, #2563eb);
  background-size: 200% 200%;
  z-index: -1;
  border-radius: 50px;
  filter: blur(10px);
  opacity: 0;
  transition: opacity 0.3s;
}
.glow-btn:hover {
  background-position: 100% 50%;
}
.glow-btn:hover::before {
  opacity: 1;
  background-position: 100% 50%;
}