body {
    height: 100vh; /* Full viewport height */
    width: 100%; /* Full width of the screen */
    display: flex;
    justify-content: center; /* Center content horizontally */
    align-items: center; /* Center content vertically */
    margin: 0;
    padding: 0;
    background-color: #f4f7fa; /* Light background color */
    font-size: 18px; /* Default font size */
}
#main-title{
    color:#055d75;
    text-align:center;
}
#form {
    width: 100%;
    max-width: 500px; /* Limits form width on larger screens */
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#atermonLogo {
     display: block;
     margin: 0 auto 20px;
     width: 150px; /* Default size for larger screens */
     height: auto;
}

.form-control {
    margin-bottom: 20px; /* Space between form elements */
    font-size: 1.1em; /* Larger form control text */
}

#checkbox {
    margin-bottom: 10px;
}

.alert {
    margin-bottom: 15px;
    font-size: 1em; /* Alert text size */
}

/* Responsive Design for Smaller Screens */
@media (max-width: 576px) {
    #form {
        max-width: 100%; /* Full width on mobile */
        padding: 20px; /* Less padding for smaller screens */
    }

    .form-control {
        font-size: 1.1em;
        padding: 12px;
    }

    #atermonLogo {
        width: 200px; /* Smaller logo for mobile */
        height: auto;
    }

    button#signButton {
        font-size: 1.1em;
    }
}

/* Responsive Design for Medium Screens (Tablets) */
@media (min-width: 577px) and (max-width: 768px) {
    #form {
        max-width: 80%; /* Takes 80% of the screen width */
        padding: 25px;
    }
    #atermonLogo {
        width: 180px; /* Slightly bigger logo for tablets */
    }
}

/* Responsive Design for Larger Screens (Desktops and larger) */
@media (min-width: 769px) {
    #form {
        max-width: 500px; /* Max width for desktops */
    }
    #atermonLogo {
        width: 200px; /* Larger logo for desktop */
    }
}