@import url('https://fonts.googleapis.com/css2?family=Bitcount+Grid+Double:wght@100..900&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Bitcount Grid Double", system-ui;
}

body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(45deg, #0a0a0a, #3a4452);
}

.calculator {
    border: 1px solid #717377;
    padding: 20px;
    border-radius: 16px;
    background: transparent;
    box-shadow: 0px 3px 15px rgb(113, 115, 119, 0.5);
}

input {
    width: 360px;
    border: none;
    padding: 24px;
    margin: 10px;
    background: transparent;
    box-shadow: 0px 3px 15px rgbs(84, 84, 84, 0.1);
    font-size: 40px;
    text-align: right;
    cursor: pointer;
    color: #ffffff;
}

input::placeholder {
    color: #ffffff;
}

button {
    border: none;
    width: 60px;
    height: 60px;
    margin: 10px;
    border-radius: 50px;
    background: transparent;
    color: #ffffff;
    font-size: 20px;
    box-shadow: 0 0 8px 0 rgb(0, 0, 0);
    cursor: pointer;
}

.equalbtn {
    background: linear-gradient(45deg, #BB1900, #FD6F01, #FFB000);
}

.opebtn {
    background: linear-gradient(45deg, blue, skyblue);
}

.delbtn {
    background: linear-gradient(45deg, red, rgb(224, 96, 96));
}

.delbtnac {
    width: 149px;
    height: 60px;
    background: linear-gradient(45deg, red, rgb(224, 96, 96));
}