styles.css

html {
    background-color: rgba(223, 217, 207, 0.938);;
}
body {
    display: flex;
    align-self: center;
    justify-content: center;
    flex-direction: column;
    font-family: 'Open Sans', sans-serif;
    
}

#calculator-div {
    justify-content: center;
    align-self: center;
    display: flex;
    flex-direction: column;
    background-color: rgb(10, 10, 10);
    
    border-radius: 34px;
    height: 700px;
    width: 500px;
    padding-top: 20px;
}

#screen-div-container{
    display: flex;
    align-self: center;
    justify-content: center;
    flex-direction: column;
    height: 200px;
    width: 460px;
    background-color: rgb(32, 32, 22);
    border-radius: 34px;
    text-align: right;
}


#screen-div {
    padding: 10px;
    font-size: 72px;
    text-align: right;
    width: 430px;
    padding: 0;
    background-color: rgb(32, 32, 22);
    border: none;
    color: rgb(255, 223, 181);
    font-family: 'Open Sans', sans-serif;
}

#screen-div:focus {
    outline: none;
}




#error-msg-div{
    overflow:auto;
    font-size: 22px;
    padding: 10px;
    color:rgb(196, 196, 196);
}

#buttons-div-container {

    display: flex;
    justify-content: center;
    align-self: center;
    margin-top: -20px;
}

#buttons-div {
    border-radius: 34px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr 1fr 1fr 1fr;
    height: 506px;
    width: 480px;
}

.functions{
    width: 70px;
    height: 40px;
    padding-top: 30px;
    align-self: center;
    justify-self: center;
}

.fxn {
    width: 70px;
    height: 40px;
    font-size: 26px;
    font-weight: 400;
    transition-duration: 0.4s;
}

.fxn:hover {
    background-color: #0f0f0f;
    color: rgb(231, 231, 231);
}


.fxn:active {
  background-color: #0f0f0f;
  color: rgb(231, 231, 231);
  box-shadow: 0 5px #cecece;
  transform: translateY(4px);
}


#sqrt {
    font-size: 32px;
    font-weight: 800;
}


.more {
    margin-top: 35px;
    margin-left: 25px;
}

.more > select:focus{
    background-color: #0f0f0f;
    color: white;
}

select {
    width: 70px;
    height: 40px;
    font-size: 18px;
    border: none;
    background-color: rgb(235, 235, 235);
    border-radius: 50px;
    font-family: 'Open Sans', sans-serif;
    transition-duration: 0.4s;
}

select:hover {
    color: rgb(231, 231, 231);
    background-color: #0f0f0f;
}

.more-fxn{
    font-size: 18px;
}


select:focus-visible {
    outline: none;
}


button {
    font-family: 'Open Sans', sans-serif;
    align-self: center;
    justify-self: center;
    font-size: 28px;
    font-weight: 500;
    border: none;
    width: 70px;
    height: 70px;
    border-radius: 90px;
    transition-duration: 0.4s;
}

button:hover {background-color: #0f0f0f}


button:active {
  background-color: #0f0f0f;
  box-shadow: 0 4px #494949;
  transform: translateY(4px);
}
.num1 {
    background-color: rgb(44, 44, 44);
    color: rgb(235, 235, 235);
}

.num2, .operator {
    background-color: rgb(219, 202, 144);
    color: rgb(0, 0, 0);
    transition-duration: 0.4s;
}

.num2:hover, .operator:hover {background-color: rgb(255, 227, 133)}

.num2:active, .operator:active {
    background-color: rgb(255, 227, 133);
    box-shadow: 0 4px #494949;
    transform: translateY(4px);
}


#clear {
    background-color: rgba(195, 241, 183, 0.849);
    color: rgb(0, 0, 0);
    transition-duration: 0.4s;
}

#clear:hover {background-color: rgba(174, 255, 154, 0.993)}


#clear:active {
  background-color: rgba(174, 255, 154, 0.993);
  box-shadow: 0 4px rgba(195, 241, 183, 0.849);
  transform: translateY(4px);
}

#equals{
    background-color: rgb(255, 208, 147);
    color: rgb(0, 0, 0);
    transition-duration: 0.4s;
}
#equals:hover {background-color: rgb(240, 172, 83)}


#equals:active {
  background-color: rgb(240, 172, 83);
  box-shadow: 0 3px rgb(255, 208, 147);
  transform: translateY(4px);
}

footer {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1em;
    text-align: center;
    
}


#github-logo-link {
    align-self: center;
}

#github-logo-link img{
    height: 40px;
}

p {
    font-size: 20px;
}

@media only screen and (max-width: 480px) {

    html {
        display: flex;
        justify-content: center;
    }
    body{
        width: 375px;
        margin: 0;
    }
    #calculator-div{
        width: 375px;
        height: 647px;
    }

    #screen-div-container {
        margin-top: -10px;
        margin-bottom: 20px;
        width: 365px;
    }

    #screen-div {
        border-radius: 50px;
        width:345px;
        
    }

    #buttons-div-container{
        width: 365px;
        padding-top: 0;
    }

    #buttons-div {
        width: 365px;
        height: 410px;
    }

    button {
        width: 60px;
        height: 60px;
    }
}