body {
    padding: 0 20px;
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.calculator {
    border: 1px solid black;
    height: 550px;
    width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 40px;
    border-radius: 10px;
    background-color: #9a9f9f;
}

.screens {
    border: 1px solid #1f2937;
    width: 90%;
    height: 20%;
    margin: 18px 0;
    border-radius: 10px;
    background-color: #d7dada;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.top-screen {
    height: 40%;
    width: 90%;
    padding: 5px;
    display: flex;
    justify-content: right;
    align-items: center;
    font-family: Orbitron, sans-serif;
    font-size: 20px;
}

.bottom-screen {
    height: 50%;
    width: 90%;
    padding: 5px;
    display: flex;
    justify-content: right;
    align-items: center;
    font-family: Orbitron, sans-serif;
    font-size: 35px;
}

.input-buttons {
    border: 1px solid #1f2937;
    width: 90%;
    height: 75%;
    margin-bottom: 18px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 5px 0;
}

.btn-rows {
    height: 20%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    padding: 4px 4px;
}

.inp-btn {
    font-family: Roboto, sans-serif;
    font-size: 30px;
    border-radius: 50%;
    width: 23%;
    height: 100%;
    border: 0;
    text-align: center;
}

.inp-btn.operator {
    background-color: #ffb62e;
}

.inp-btn.power.operator {
    background-color: #f0f0f0;
}

.inp-btn.equal-to {
    background-color: #3882f6;
    color: white;
}

.inp-btn:active {
    background-color: antiquewhite;
}

/* .inp-btn.operator:active {
    background-color: antiquewhite;
} */