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

.app {
  background: rgba(0,0,0,0.3);
  padding: 30px;
  border-radius: 16px;
  width: 100%;
  max-width: 420px;
  text-align: center;
}

input {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: none;
  margin-bottom: 12px;
}

button {
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  background: #ffcc00;
  font-size: 16px;
  cursor: pointer;
}

img {
  max-width: 100%;
  margin-top: 20px;
  border-radius: 12px;
}

a {
  display: inline-block;
  margin-top: 10px;
  color: #ffcc00;
}