@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@200..700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: content-box;
    font-family: "Oswald", sans-serif;
}

body{
    width: 100;
    height: 100vh;
    display: flex;
    justify-self: center;
    align-items: center;
    background: linear-gradient(45deg,#15172c, #ac6464);
}

.calculator{
    padding: 20px;
    border: 1px solid #717377;
    border-radius: 18px;
    background: #000000;
    box-shadow: 0px -3px 15px #000000;
}

input{
    border: none;
    padding: 10px;
    width: 10;
    margin: 13px;
    background: rgb(197, 213, 143);
    box-shadow: 0px 3px 1px;
    font-size: 19px;
    text-align: right;
    cursor: pointer;
}

input::placeholder{
    color: #000000;
}

button{
    border: none;
    width: 61px;
    height: 31px;
    margin: 10px;
    border-radius: 10%;
    background: #181616;
    color: #e5e3e3;
    font-size: 20px;
    box-shadow: 4px 2px 9px #717589;
}

.equal{
    background-color: #ec0606;
}