body {
  background: #2c3e50;
  font-family: "Segoe UI", sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}
.card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  width: 320px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}
input {
  padding: 10px;
  width: 65%;
  border-radius: 5px;
  border: 1px solid #ccc;
}
button {
  padding: 10px;
  background: #3498db;
  color: white;
  border: none;
  cursor: pointer;
  border-radius: 5px;
  font-weight: bold;
}