* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea, #764ba2);
}

.app {
  background: #ffffff;
  padding: 50px 40px;
  border-radius: 16px;
  text-align: center;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  animation: fadeIn 0.6s ease-in-out;
}

h1 {
  font-size: 28px;
  font-weight: 600;
  color: #333;
  margin-bottom: 20px;
}

p {
  font-size: 16px;
  color: #555;
  margin-bottom: 15px;
  line-height: 1.6;
}

.note {
  font-size: 14px;
  color: #888;
  margin-top: 20px;
}

.highlight {
  color: #764ba2;
  font-weight: 600;
}

.btn-home {
  display: inline-block;
  margin-top: 25px;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  background: #764ba2;
  color: #fff;
  transition: all 0.3s ease;
}

.btn-home:hover {
  background: #5a3791;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .app {
    padding: 35px 25px;
  }

  h1 {
    font-size: 22px;
  }

  p {
    font-size: 14px;
  }
}