* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}


body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(0deg, #291c00f9, #1c2736);
}

.calculator {
    border: 1px solid #717377;
    padding: 20px;
    border-radius: 50px;
    box-shadow: 0px 3px 15px rgba(125, 92, 49, 0.5);
}

input {
    width: 320px;
    border: none;
    padding: 24px;
    margin: 10px;
    background: transparent;
    box-shadow: 0px 3px 15px rgba(84, 84, 84, .1);
    font-size: 40px;
    text-align: right;
    color: orange;
}

input::placeholder {
    color: white;
}

button {
    border: none;
    width: 60px;
    height: 60px;
    margin: 10px;
    border-radius: 50%;
    background: transparent;
    color: white;
    font-size: 25px;
    font-weight: 500;
    box-shadow: -8px -8px 15px rgba(255, 255, 255, 0.1);
    cursor: pointer;
}

.equalBtn {
    background-color: orange;
}

.Op {
    color: lightsalmon;
}