* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: "Orbitron", sans-serif;
}

.calculator, button {
    border-radius: 20px;
}

.calculator {
    background-color: #3B3532;
    display: flex;
    flex-direction: column;
    border: #2a2421 solid 2px;
    box-shadow: 0 4px #2a2421cc;
}

.container {
    padding: 20px;
}

.screen-container {
    background-color: #1F1A17;
    height: 100px;
    margin-bottom: 15px;
    border: #3A312C solid 2px;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    white-space: nowrap;
    overflow-x: scroll;
    direction: ltr;
    max-width: 373px;
}

.screen {
    font-size: 70px;
    color: #FFD38A;
    font-family: "Micro 5", sans-serif;
}

.first-row, .second-row, .third-row, .fourth-row, .fifth-row {
    display: flex;
    gap: 7px;
    margin-top: 7px;
}

button {
    width: 88px;
    height: 80px;
    background-color: #E9DCC4;
    border: #bfae94 2px solid;
    box-shadow: 0 2px #bfae94;
    font-family: "Orbitron", sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: #1E1B18;
}

.clear, .backspace {
    flex-grow: 1;
}

.operator {
    background-color: #E38B4F;
    border: #b8602c 2px solid;
    box-shadow: 0 2px #b8602c;
    font-weight: 700;
    color: #FFF4E6;
}

/** Do button active states **/
.number:active {
    background-color: #D6C6AA;
    border: #8F816A 2px solid;
    box-shadow: 0 2px #8F816A;
}

.operator:active {
    background-color: #C96F35;
    border: #8F4A21 2px solid;
    box-shadow: 0 2px #8F4A21;
}