:root {
    --bg-color: #F1EAFF;
    --text-color: #D67BFF;
    --keypad-bg-color: #F1EAFF;
    --keypad-bg-color2: #D0A2F7;

/* 
    --bg-color: #040D12;
    --text-color: #93B1A6;
    --keypad-bg-color: #040D12;
    --keypad-bg-color2: #183D3D; */
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
    background-color: var(--bg-color);
}

.calculator {
    aspect-ratio: 9/16;
    width: 100%;
    max-width: 350px;
    background-color: var(--keypad-bg-color);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.592);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.calculator .display {
    background-color: var(--bg-color);
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.681);
    padding: 10px;

    height: 20%;

}

.calculator .display input {
    width: 100%;
    height: 100%;
    background-color: transparent;
    border: none;
    outline: none;
    text-align: right;
    font-size: 2rem;
    color: var(--text-color);
}


.calculator .keys {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    height: 80%;
    cursor: pointer;
}


.calculator .keys button {
    background-color: var(--bg-color);
    border: none;
    border-radius: 5px;
    padding: 10px;
    font-size: 2rem;
    color: var(--text-color);
    cursor: pointer;
    outline: none;
    box-shadow: 1px 1px 5px var(--keypad-bg-color2), -1px -1px 5px var(--keypad-bg-color2);
}

.calculator .keys .equalbtn {
    grid-column: 3/5;
    background-color: var(--keypad-bg-color2);
    color: white;
}



.theme-switch {
    display: flex;

    align-items: center;
    justify-content: flex-end;
    margin-bottom: 10px;
}

.theme-toggle-label{
    display: inline-block;
    width: 40px;
    height: 20px;
    background-color: var(--keypad-bg-color2);
    border-radius: 20px;
    position: relative;
    cursor: pointer;

}

.theme-toggle-label:after{
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--text-color);
    top: 1px;
    left: 1px;
    transition: transform 0.3s ease;

}

.theme-switch input{
    display: none;
}

.theme-switch input:checked+.theme-toggle-label:after{
    transform: translateX(20px);
}