body {
    margin: 0;
    height: 100vh;
    padding: 70px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background: url('https://www.transparenttextures.com/patterns/brushed-alum.png'), #a0a0a0;
    background-size: cover;
    font-family: Arial, sans-serif;
  }
  
  .main_div {
    padding: 20px;
    border-radius: 10px;
    border: 1px solid black;
    background: white;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    text-align: center;
    width: 100%;
    height: 600px;
    font-size: 18px;
  }
 
  form {
    background-color: #fff;
    border: 1px solid black;
    padding: 30px;
    border-radius: 10px;
    max-width: 400px;
    margin: auto;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}
input[type="text"],
input[type="radio"] {
    margin-bottom: 15px;
}
input[type="text"] {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}
button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
}
button:hover {
    background-color: #45a049;
}
.radio-group {
    margin-bottom: 20px;
}