body {
  margin: 0;
  height: 100vh;
  overflow: hidden;
  background: radial-gradient(ellipse at center, #0f172a 0%, #020617 100%);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #f9fafb;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  text-align: center;
  z-index: 2;
  position: relative;
}

h1 {
  font-size: 6rem;
  margin: 0;
  color: #fff;
  text-shadow: 0 0 15px rgba(0,0,0,0.6);
}

p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: #d1d5db;
}

button {
  padding: 0.8rem 1.6rem;
  background: #22d3ee;
  color: #0f172a;
  border: none;
  border-radius: 0.75rem;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.3s, background 0.3s;
}

button:hover {
  background: #06b6d4;
  transform: scale(1.1) rotate(-1deg);
}

#rocket {
  width: 100px;
  display: block;
  margin: 0 auto 1rem;
  animation: float 2s ease-in-out infinite;
}

/* Animations */
@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}

@keyframes shake {
  0%,100%{transform:translateX(0)}
  20%{transform:translateX(-5px)}
  40%{transform:translateX(5px)}
  60%{transform:translateX(-3px)}
  80%{transform:translateX(3px)}
}

@keyframes spin {
  100%{transform:rotate(360deg)}
}

@keyframes launch {
  from { transform:translateY(0) scale(1); }
  to { transform:translateY(-200vh) scale(0.5); }
}

/* Stars */
.stars {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0; left: 0;
  overflow: hidden;
  z-index: 1;
}

.stars span {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #fff;
  border-radius: 50%;
  opacity: 0.6;
  transition: transform 0.1s linear;
}

.warp .stars span {
  transform: scaleY(20);
  opacity: 1;
  transition: transform 1s ease, opacity 1s ease;
}