/* General reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f9;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
  max-width: 400px;
  width: 100%;
}

.promo-message {
  background-color: #3498db;
  color: white;
  padding: 10px;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 20px;
}

.promo-message p {
  font-size: 1.1rem;
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 20px;
}

.input-group {
  margin-bottom: 15px;
}

label {
  font-size: 1rem;
  color: #333;
  margin-bottom: 5px;
  display: block;
}

input {
  width: 100%;
  padding: 10px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  margin-top: 5px;
}

button {
  width: 100%;
  padding: 10px;
  background-color: #3498db;
  color: white;
  font-size: 1.1rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #2980b9;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
  .container {
    padding: 15px;
  }

  h1 {
    font-size: 1.5rem;
  }

  input, button {
    font-size: 1rem;
  }
}