body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(145deg, #e9f3ff, #ffffff);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
  }

  .signup-container {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 380px;
    padding: 40px;
    text-align: center;
    animation: fadeIn 0.6s ease;
  }

  @keyframes fadeIn {
    from {opacity: 0; transform: translateY(10px);}
    to {opacity: 1; transform: translateY(0);}
  }

  h2 {
    color: #0066cc;
    margin-bottom: 20px;
    font-weight: 600;
  }

  input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
  }

  input:focus {
    border-color: #0078d7;
    box-shadow: 0 0 6px #0078d7;
    outline: none;
  }

  button {
    width: 100%;
    padding: 12px;
    background-color: #0078d7;
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
  }

  button:hover {
    background-color: #005bb5;
    transform: translateY(-2px);
  }

  p {
    margin-top: 15px;
    font-size: 14px;
  }

  a {
    color: #0078d7;
    text-decoration: none;
    font-weight: 500;
  }

  a:hover {
    text-decoration: underline;
  }

  #loading {
    display: none;
    color: #0078d7;
    margin-top: 10px;
    font-size: 14px;
  }

  @media (max-width: 480px) {
    .signup-container {
      width: 90%;
      padding: 30px;
    }
  }