main section.box {
    max-width: 900px;
    min-width: 600px;      
    margin: 2rem auto;     
    padding: 2rem 3rem;    
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    border-radius: 10px;
    background-color: #1e1e1e;
    display: flex;
    flex-direction: column;
    align-items: center;
}


main section.box h2 {
    text-align: center;
    margin-bottom: 2rem;
}


main section.box form {
    width: 100%;          
    display: flex;
    flex-direction: column;
    align-items: center;  
}


main section.box form label {
    align-self: flex-start; 
    margin-bottom: 0.3rem;
}

main section.box form input,
main section.box form select,
main section.box form textarea {
    width: 100%;        
    max-width: 900px;
    min-width: 600x; 
    padding: 0.6rem;
    margin-bottom: 1rem;
    border-radius: 6px;
    border: 1px solid #444;
    background-color: #2a2a2a;
    color: #f1f1f1;
    box-sizing: border-box;
}


main section.box form button {
    width: 100%;
    max-width: 200px; 
    margin: 1rem auto 0;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    background-color: #3a8ef6;
    color: #fff;
    cursor: pointer;
}

main section.box form button:hover {
    background-color: #2d6ed6;
}


@media (max-width: 700px) {
    main section.box {
        padding: 2rem 1.5rem;
    }

    main section.box form input,
    main section.box form select,
    main section.box form textarea {
        max-width: 100%;
    }

    main section.box form button {
        max-width: 100%;
    }
}