* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.container {
  padding: 20px;
}

.card {
  background: white;
  border-radius: 20px;
  padding: 50px 60px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  max-width: 480px;
  width: 100%;
}

.emoji {
  font-size: 64px;
  margin-bottom: 20px;
  animation: wave 2s infinite;
  display: inline-block;
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(20deg); }
  75% { transform: rotate(-10deg); }
}

h1 {
  font-size: 2.5rem;
  color: #2d2d2d;
  margin-bottom: 14px;
  font-weight: 700;
}

p {
  color: #666;
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 28px;
}

button {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border: none;
  padding: 14px 36px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.5);
}

button:active {
  transform: translateY(0);
}

.response {
  margin-top: 20px;
  margin-bottom: 0;
  font-size: 1rem;
  color: #764ba2;
  font-weight: 600;
  min-height: 24px;
  transition: opacity 0.3s;
}