/* ====================================
   BIOPEL CALCULATOR
==================================== */

.biopel-calculator {
    padding: 30px;
    background: #8bc63e;
    border-radius: 6px;
    overflow: hidden;
}

.biopel-calculator * {
    box-sizing: border-box;
}

.biopel-calculator-wrapper {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: start;
}

.biopel-calculator-form,
.biopel-calculator-result {
    background: #fff;
    border-radius: 24px;
    padding: 35px;
}

.biopel-field {
    margin-bottom: 32px;
}

.biopel-field label {
    display: block;
    margin-bottom: 14px;
    font-weight: 600;
    font-size: 15px;
    color: #111;
}

.biopel-unit {
    font-size: 13px;
    font-weight: 500;
    opacity: 0.6;
    margin-left: 4px;
}

.biopel-range-wrap {
    display: flex;
    align-items: center;
    gap: 18px;
}

.biopel-range-wrap input[type="range"] {
    width: 100%;
    accent-color: #8bc63e;
}

#biopel-size-input {
    width: 90px;
    min-width: 90px;
    padding: 10px;
    border-radius: 12px;
    border: 1px solid #ddd;
    text-align: center;
    font-weight: 600;
}

#biopel-temp-value {
    min-width: 55px;
    font-weight: 700;
    color: #8bc63e;
}

.biopel-building-types {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 12px;
}

.biopel-building {
    border: 2px solid #e9e9e9;
    border-radius: 18px;
    padding: 18px 14px;
    cursor: pointer;
    transition: 0.25s ease;
    text-align: left;
}

.biopel-building strong {
    display: block;
    font-size: 16px;
    margin-bottom: 5px;
    color: #111;
}

.biopel-building span {
    font-size: 13px;
    color: #666;
}

.biopel-building:not(.active) {
    background: rgba(139,198,62,0.08);
    border-color: rgba(139,198,62,0.35);
}

.biopel-building:hover {
    border-color: #8bc63e;
    background: rgba(139,198,62,0.14);
}

.biopel-building.active {
    border-color: #8bc63e;
    background: #8bc63e;
}

.biopel-building.active strong,
.biopel-building.active span {
    color: #fff;
}

.biopel-checkbox {
    display: flex;
    align-items: center;
    gap: 12px;
}

.biopel-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: #8bc63e;
}

.biopel-checkbox label {
    margin: 0;
    font-size: 15px;
    font-weight: 500;
}

.biopel-result-label {
    display: inline-block;
    margin-bottom: 16px;
    color: #666;
    font-size: 14px;
}

.biopel-calculator-result h3 {
    margin: 0 0 30px;
    font-size: 52px;
    line-height: 1;
    color: #111;
}

#biopel-result-tons {
    color: #8bc63e;
}

.biopel-result-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 30px;
}

.biopel-result-card {
    background: #f7f7f7;
    border-radius: 18px;
    padding: 18px 20px;
}

.biopel-result-card span {
    display: block;
    font-size: 13px;
    color: #666;
    margin-bottom: 8px;
}

.biopel-result-card strong {
    font-size: 26px;
    color: #111;
}

.biopel-result-btn {
    width: 100%;
    text-align: center;
}

/* ====================================
   MOBILE
==================================== */

@media (max-width: 991px) {

    .biopel-calculator {
        padding: 20px;
    }

    .biopel-calculator-wrapper {
        grid-template-columns: 1fr;
    }

    .biopel-calculator-form,
    .biopel-calculator-result {
        padding: 25px;
    }

    .biopel-building-types {
        grid-template-columns: 1fr;
    }

    .biopel-calculator-result h3 {
        font-size: 32px;
    }

}

@media (max-width: 600px) {

    .biopel-range-wrap {
        flex-direction: column;
        align-items: stretch;
    }

    #biopel-size-input {
        width: 100%;
    }

}