body {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #1d3557, #457b9d);
    color: white;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
  }
  
  .container {
    max-width: 500px;
    padding: 2rem;
    background-color: rgba(0, 0, 0, 0.4);
    border-radius: 15px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  }
  
  h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
  }
  
  p {
    margin-bottom: 2rem;
    font-size: 1.2rem;
  }
  
  form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  input {
    padding: 0.8rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
  }
  
  button {
    background-color: #f1faee;
    color: #1d3557;
    padding: 0.8rem;
    font-size: 1rem;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
  }
  
  button:hover {
    background-color: #a8dadc;
  }
  .timer {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 2rem;
    letter-spacing: 1px;
  }