*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    width: 100vw;
    height: 100vh;

    font-family: sans-serif;
    background-color: #faf8f8;
}

.title{
    width: 300px;

    margin-bottom: 10px;

    text-align: center;
    font-weight: bolder;
    font-size: x-large;
    color: black;
}

.container{
    height: 100vh;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    user-select: none;
}

.calculator{
    width: 300px;

    padding-bottom: 15px;

    border-radius: 8px;
    background-color: #000;
    box-shadow: 5px 8px 8px -2px rgba(0, 0, 0, 0.61);
}

.display{
    width: 100%;
    height: 80px;

    padding: 10px;

    font-size: xx-large;
    text-align: right;

    border: none;
    border-top-left-radius: 7px;
    border-top-right-radius: 7px;

    color: #000;
    background-color: #cccecc;
    outline: none;
}

.keys{
    padding: 10px;
}

button{
    width: 50px;
    height: 50px;

    margin: 10px;

    border: none;
    border-radius: 50%;
    outline: none;
    
    font-weight: bold;
    font-size: x-large;

    color: #000;
    background-color: white;
}

button:hover{
    cursor: pointer;
}

.operators{
    background-color: #ff9500;
    color: #000;
}

button:last-child{
    height: 50px;
    width: 260px;

    border-radius: 10px;
    background-color: #cccecc;
    color: #000;
}