body {
  margin: 0;
  padding: 0;
  background: #05050f;
  color: #ddd;
  font-family: system-ui, sans-serif;
  text-align: center;
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

h1 {
  font-size: 2.6rem;
  margin-bottom: 30px;
  color: #ffffff;
}

.earth-container {
  margin: 50px auto;
  width: 700px;
  height: 700px;
}

#earth {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  box-shadow: 0 0 120px rgba(100, 180, 255, 0.9);
  object-fit: cover;
  transition: transform 0.6s ease;
}

#earth:hover {
  transform: scale(1.05);
}

.message {
  font-size: 1.45rem;
  max-width: 720px;
  margin: 40px auto;
  line-height: 1.7;
}

.buy-btn {
  background: linear-gradient(135deg, #00ccff, #0099cc);
  color: #000;
  font-size: 1.45rem;
  padding: 18px 55px;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  margin: 30px 0;
  font-weight: 600;
}

.countdown {
  font-size: 1.35rem;
  margin-top: 20px;
  color: #88ddff;
}