body{
    background-color: #f5f5f5;
    min-height: 100vh;
    background-image: url(nyc.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    min-width: 100%;
} 

.container{
    display: flex;
    justify-content: center;
    align-items: center;
}

#heading{
    text-align: center;
    font-size: 5rem;
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}


#myForm{
    width: 80%;
    margin: 20px 30px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

#myForm label{
    font-size: 1.3rem;
    font-weight: 600;
    font-family: Arial, sans-serif;
    color: black;
}

.selectGender{
    display: flex;
    align-items: center;
    gap: 10px;
}

.selectGender .genderOptions{
    display: inline-flex;
    align-items: center;
    gap: 30px;
}

.courses select{
    border-radius: 8px;
    padding: 6px;
    width: 80%;
    outline: none;
}

.courses select option{
    font-size: 1.2rem;
    font-weight: 600;
    color: black;
}

.branches select{
    border-radius: 8px;
    padding: 6px;
    width: 259px;
    outline: none;
}

.branches select option{
    font-size: 1.2rem;
    font-weight: 600;
    color: black;
}

.branches #branchSel{
    color: white;
}

.year{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-top: 10px;
}
.year .years .yearOption label{
    font-size: 1.2rem;
    font-weight: 600;
}

.year .years .yearOption input{
    margin-right: 10px;
    width: 15px;
    height: 15px;
}

#myForm .confirm #conPw{
    color: white;
}

#myForm .password #pw{
    color: white;
}

.pwIcon{
    display: flex;
    justify-content: center;
    width: 100%;
}

.ci{
    cursor: pointer;
    color: hsl(0, 0%, 50%);
    position: absolute;
    right: 10px;
    top: 10px;
}

.fa-solid{
    cursor: pointer;
    color: hsl(0, 0%, 50%);
    position: absolute;
    right: 10px;
    top: 10px;
}

input{
    width: 100%;
    outline: none;
    border: none;
    border-radius: 8px;
    padding: 6px;
}

.error{
    color: red;
    font-size: 1rem;
}

.btn{
    width: 100%;
    margin-top: 10px;
}

.terms
{
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

.terms input[type="checkbox"] {
    width: 20px;
    height: 20px;
    border-radius: 8px;
    cursor: pointer;
}

/* Tablet devices (portrait and smaller) */
@media (max-width: 768px) {
    #heading {
        font-size: 3rem;
    }

    #myForm {
        width: 90%;
        margin: 10px auto;
        padding: 15px;
    }

    #myForm label,
    .year .years .yearOption label,
    .branches select option,
    .courses select option {
        font-size: 1rem;
    }

    input,
    .branches select,
    .courses select {
        font-size: 1rem;
        padding: 5px;
    }

    .btn {
        width: 100%;
        margin-top: 15px;
    }

    .selectGender {
        display: flex;
        justify-content: flex-start;
        gap: 10px;
    }

    .selectGender .genderOptions {
        display: flex;
        justify-content: center;
        gap: 10px;
    }

    .year {
        flex-direction: column;
        align-items: flex-start;
    }

    .terms {
        display: flex;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 5px;
        font-size: 0.6rem;
    }

    body {
        padding: 10px;
    }
}

/* Mobile devices (very small screens) */
@media (max-width: 480px) {
    #heading {
        font-size: 2rem;
    }

    #myForm {
        padding: 10px;
    }

    #myForm label {
        font-size: 0.9rem;
    }

    input,
    select {
        font-size: 0.9rem;
    }

    .btn {
        font-size: 1rem;
        padding: 8px;
        background-color: green;
        color: white;
    }

    .fa-solid,
    .ci {
        right: 5px;
        top: 5px;
        font-size: 1rem;
    }
}

/* screen size of 360px and below */
@media (max-width: 360px) {
    #heading {
        font-size: 1.5rem;
    }

    #myForm {
        width: 100%;
        padding: 5px;
    }

    input,
    select {
        font-size: 0.8rem;
        padding: 4px;
    }

    .btn {
        font-size: 0.9rem;
        padding: 6px;
    }

    .fa-solid,
    .ci {
        right: 3px;
        top: 3px;
        font-size: 0.9rem;
    }
    .branches select{
        width: 100%;
    }
    .courses select{
        width: 100%;
    }
}