* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #0f0f1a;
  color: #f5f5fa;
}
.hero { text-align: center; padding: 2rem; }
.title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #6ee7ff 0%, #b794ff 50%, #ff9ce1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: pulse 4s ease-in-out infinite;
}
.subtitle {
  margin-top: 1rem;
  font-size: 1.1rem;
  color: #a0a0b8;
}
.btn {
  margin-top: 2rem;
  padding: 0.85rem 2.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 999px;
  color: #0f0f1a;
  background: linear-gradient(135deg, #6ee7ff 0%, #b794ff 50%, #ff9ce1 100%);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 20px rgba(110, 231, 255, 0.3);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(183, 148, 255, 0.4);
}
.btn:active {
  transform: translateY(0);
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.75; }
}