html {
    font-family: 'Yellowtail', cursive;
    box-sizing: border-box;
}

*, *::before, *::after {
    box-sizing: inherit;
}


body {
    display: grid;
    background-color: rgba(243, 170, 239, 0.534);
    text-align: center;
    align-items: center;
    justify-content: center;
    
}

.container {
    margin-top: 60px;
    background-color: rgb(131, 131, 131);
    width: 350px;
    height: 560px;
    border: 2px solid black;
    border-radius: 20px;
    text-align: center;
    box-shadow: 5px 5px 10px 5px black;
}

.screen {
    display: grid;
    grid-template-rows: 40px 60px;
    background-color: rgb(145, 173, 145);
    text-align: center;
    margin: 30px 20px 20px 20px;
    height: 100px;
    border-radius: 8px;
    border: 2px solid black;
}

#input {
    font-family: 'Ubuntu', sans-serif;
    font-size: 20px;
    align-self: center;
    justify-self: end;
    margin-right: 20px;
}

#result {
    font-family: 'Ubuntu', sans-serif;
    font-weight: bold;
    font-size: 30px;
    align-self: center;
    justify-self: end;
    margin-right: 20px;
}

.ctrlBtns {
    display: grid;
    grid-gap: 10px;
    margin: 30px 20px 0px 20px;
    height: 50px;
    grid-template-columns: repeat(3, 1fr);   
    
}

.ctrlBtn {
    border: 2px solid black;
    border-radius: 5px;
}

.ctrlBtn:hover {
    transform: scale(1.1);
    box-shadow: 0px 0px 1px 2px rgba(0, 0, 0, 0.329);
    margin-bottom: 4px;
    cursor: pointer;
}

#clearBtn {
    background-color: rgb(235, 143, 143);
}

#deleteBtn {
    background-color: rgb(229, 235, 154);
}

#answerBtn {
    background-color: rgb(143, 149, 235);
}

.btns {
    margin: 20px auto;
    height: 300px;
    width: 300px;
    display: grid;
    grid-gap: 10px;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(4, 1fr);
}

.btn {
    background-color: rgb(211, 211, 211);
}

.btn:hover {
    background-color: rgb(143, 149, 235);
    transform: scale(1.1);
    box-shadow: 0px 0px 1px 2px rgba(0, 0, 0, 0.329);
    margin-bottom: 4px;
    cursor: pointer;
}

#dotBtn, #equalsBtn, .symBtn {
    background-color: rgb(255, 255, 255);
}

#dotBtn:hover {
    background-color: rgb(214, 150, 187);
    transform: scale(1.1);
    box-shadow: 0px 0px 1px 2px rgba(0, 0, 0, 0.329);
    margin-bottom: 4px;
    cursor: pointer;
}

#equalsBtn:hover {
    background-color: rgb(152, 214, 150);
    transform: scale(1.1);
    box-shadow: 0px 0px 1px 2px rgba(0, 0, 0, 0.329);
    margin-bottom: 4px;
    cursor: pointer;
}

.symBtn:hover {
    background-color: rgb(214, 150, 150);
    transform: scale(1.1);
    box-shadow: 0px 0px 1px 2px rgba(0, 0, 0, 0.329);
    margin-bottom: 4px;
    cursor: pointer;
}


.allBtns {
    border: 2px solid black;
    border-radius: 50%;
}