* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 100%;
  padding: 20px;
}

.card {
  max-width: 420px;
  margin: auto;
  background: #fff;
  padding: 28px;
  border-radius: 12px;
  box-shadow: 0 12px 35px rgba(0,0,0,0.25);
}

h2 {
  text-align: center;
  margin-top: 0;
}

.subtitle {
  text-align: center;
  color: #666;
}

label {
  margin-top: 12px;
  display: block;
  font-weight: bold;
}

input {
  width: 100%;
  padding: 12px;
  margin-top: 6px;
}

input:disabled {
  background: #f2f2f2;
}

button {
  width: 100%;
  margin-top: 20px;
  padding: 14px;
  background: #1e3c72;
  color: white;
  border: none;
  border-radius: 8px;
}

@media (max-width: 480px) {
  .card { padding: 20px; }
}