@import url('https://fonts.googleapis.com/css2?family=Roboto+Mono:ital,wght@0,100..700;1,100..700&display=swap');

* {
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    font-family: "Roboto Mono", monospace;

}

body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: black;
}

.calculator {
    padding: 20px;
    border: 2px solid white;
    border-radius: 15px;
    box-shadow: 0px 2px 20px white;
    background: transparent;
   
}

input {
    font-size: 40px;
    color: white;
    text-align: right;
    width: 320px;
    margin: 10px;
    padding: 24px;
    border-color: white;
    box-shadow: 0px 2px 10px white;
    background: transparent;
    cursor: pointer;
}

input::placeholder {
    color: white;
}

button {
    height: 60px;
    width: 60px;
    margin: 10px;
    font-size: 25px;
    color: white;
    border: 1px solid white;
    border-radius: 50%;
    box-shadow: 0px 2px 20px white;
    background: transparent;
    cursor: pointer;
}

.equal {
    background-color: orangered;
}

.oprator {
    color: rgb(26, 235, 26);
}