interface.css

*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    border-radius: 50px;
}
.calculator{
    display: flex;
    width: 50%;
    margin: 50px auto;
    padding: 10px 5px 10px;
    flex-direction: column;
    height: 80vh;
    gap: 10px;
    box-shadow: 2px 2px 9px rgba(0,0,0,0.3);
    background-color: black;
    /* font-size: 70px; */
}
input{
    width: 100%;
    height: 1000px;
    background-color: black;
    color: white;
    padding-left: 50px;
    padding-top: 50px;
    font-size: 30px;
    border: 1px solid rgba(0,0,0,0.3);
}

.calculator .button{
    display: flex;
    height: 100%;
    justify-content: center;
    padding: 10px;
    flex-wrap: wrap;
    gap: 7px;
    background-color: rgba(0,0,0,0.3);
    /* font-size: 10px; */
}
.calculator .button button{
    width: 20.1%;
    height: 50px;
    /* color: white; */
    font-weight: 900;
}
.zero{
    width: 100px !important;
    padding-right: 35px;
}
.red{
    background-color: orangered;
}