body {
  margin: 0;
  padding: 0;
  background: #000000;
  color: #ffffff;
  font-family: 'Lemon Milk', 'Arial', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

main {
  text-align: center;
  z-index: 1;
}

h1 {
  font-size: 3rem;
  letter-spacing: 0.1em;
  text-shadow: 0 0 12px #00baff, 0 0 24px #00baff88;
  margin-bottom: 2rem;
}

.button {
  background: transparent;
  color: #ffffff;
  border: 2px solid #00baff;
  border-radius: 1.5rem;
  padding: 1.2rem 2.8rem;
  font-size: 1.5rem;
  letter-spacing: 0.13em;
  margin: 1.2rem 0;
  display: inline-block;
  text-decoration: none;
  box-shadow: 0 0 18px #00baff70;
  transition: background 0.2s, color 0.2s, transform 0.12s, box-shadow 0.16s;
}

.button:hover,
.button:focus {
  background: #00baff;
  color: #000;
  transform: scale(1.04);
  box-shadow: 0 0 38px #00baffc0, 0 0 4px #fff8;
  cursor: pointer;
}

.portal-glow {
  position: absolute;
  top: 40%;
  left: 50%;
  width: 280px;
  height: 120px;
  background: radial-gradient(ellipse at center, #00baff44 0%, #0000 80%);
  filter: blur(28px);
  transform: translate(-50%, -50%);
  z-index: 0;
  animation: portalPulse 2.8s infinite alternate;
}

@keyframes portalPulse {
  0% { opacity: 0.70; }
  100% { opacity: 1; }
}