body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #4a90e2, #6dd5fa);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  background: white;
  width: 350px;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  text-align: center;
}

h2 {
  margin-bottom: 10px;
}

.sub {
  color: gray;
  font-size: 14px;
  margin-bottom: 20px;
}

input {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border-radius: 8px;
  border: 1px solid #ccc;
}

button {
  width: 100%;
  padding: 12px;
  background: #4a90e2;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background: #357abd;
}

.footer {
  margin-top: 15px;
  font-size: 12px;
  color: gray;
}