body { 
  margin: 0; 
  font-family: system-ui, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh; 
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 1rem;
}

.card { 
  max-width: 28rem; 
  padding: 2rem; 
  background: white;
  border-radius: 16px; 
  box-shadow: 0 10px 25px rgba(0,0,0,0.1); 
  text-align: center;
  opacity: 0;
  animation: fadeIn 0.5s ease-out forwards;
}

.show-card { 
  opacity: 1;
}

.link-section {
  margin-top: 2rem;
}

.target-link {
  display: inline-block;
  padding: 15px 30px;
  background: #ff4757;
  color: white;
  text-decoration: none;
  border-radius: 25px;
  font-weight: 600;
  font-size: 1.1rem;
}

.target-link:hover {
  background: #ff3742;
}

h1 {
  margin-bottom: 1.5rem;
  color: #333;
  font-size: 1.4rem;
}

p {
  line-height: 1.6;
  color: #555;
}

@keyframes fadeIn { 
  to { opacity: 1; }
}