* {
    box-sizing: border-box; 
}

h1, footer {
    text-align: center; 
}


main {
    max-width: 400px;
    margin: 50px auto;
    padding: 20px;
    background-color: aliceblue;
    border-radius: 10px;
    box-shadow: 0 4px 6px;

}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

input,
select {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid green;
    border-radius: 5px;

}

fieldset {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    border: 1px solid green;
    padding: 10px;
    margin-bottom: 5px;
    

    
}



.size-option {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-bottom: 5px;

}

input [type="radio"] {
    width: auto;
    margin-bottom: 0;
}

button[type="submit"] {

    width: 100%;
    padding: 12px;
    background-color: green;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;

}

button[type="submit"]:hover {
    background-color: blue;
}

footer {
    margin-top: 20px;
    font-size: 0.9em;
   
}