.calculator {
    width: calc(100% - 50px*2);
    height: min-content;
    position: relative; /* Додаємо, щоб обмежити псевдоелемент */
    padding: 50px;
    color: white;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 50px;
    margin-top: 25px;
}

.calculator::before {
    content: "";
    position: absolute; /* Фон буде тільки в межах .calculator */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('/static/img/index/waterfall_calculator.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.25);
    border-radius: 15px; /* Щоб фон повторював форму .calculator */
    z-index: -1; /* Розміщуємо під основним контентом */
}

.calculator-input{
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
}

.calculator-group{
    height: 100%;
    width: calc(100%/3);
    padding-right: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 50px;
}

.calculator-block{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: center;
}

.calc-panel{
    display: flex;
    align-items: center;

    & *{
        &::selection{
            color: white;
            background-color: black;
        }
    }
}

.calculator .btn{
    width: 20px;
    height: 20px;


    filter: brightness(1);

    transition: .5s ease;

    cursor: pointer;
    border: none;
}
.calculator .btn:active{
    filter: brightness(.5);
}

.calculator .text-panel{
    width: 50px;
    height: 20px;

    text-align: center;
    padding: 0;
    margin: 0;
    border: none;
}



.calculator-print{
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}



.caclc-photo-author{
    color: white;
    position: absolute;
    right: 10px;
    bottom: 10px;
}