/* Calculator page */
.page-hero {
    padding: calc(var(--header-h) + 50px) 0 40px;
    background: linear-gradient(160deg, #F0F7F0 0%, #E8F5E9 40%, #FAFCF9 100%);
    text-align: center;
}

.page-title {
    font-family: var(--font-heading);
    font-size: clamp(1.9rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--green-900);
    margin-bottom: 12px;
}

.page-desc {
    max-width: 620px;
    margin: 0 auto;
    color: var(--gray-600);
    font-size: 1.05rem;
}

.calc-section {
    padding: 40px 0 100px;
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 36px;
    align-items: start;
}

.calc-block {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.calc-block h2 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--green-900);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.step-num {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-700), var(--green-500));
    color: white;
    border-radius: 50%;
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
}

.calc-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.calc-field label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--green-900);
    margin-bottom: 6px;
}

.calc-field select {
    width: 100%;
    padding: 11px 14px;
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    color: var(--gray-800);
    cursor: pointer;
    transition: var(--transition);
}

.calc-field select:focus {
    border-color: var(--green-500);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.12);
}

.calc-hint {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin: -8px 0 18px;
}

.calc-cat {
    margin-bottom: 20px;
}

.calc-cat-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--green-800);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-100);
}

.calc-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.calc-item:hover {
    background: var(--green-50);
}

.calc-item.selected {
    background: rgba(76, 175, 80, 0.1);
}

.calc-item input {
    width: 18px;
    height: 18px;
    accent-color: var(--green-600);
    cursor: pointer;
    flex-shrink: 0;
}

.calc-item-name {
    flex: 1;
    font-size: 0.9rem;
    color: var(--gray-800);
    line-height: 1.35;
}

.calc-item-price {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--green-700);
    white-space: nowrap;
}

/* Sidebar result */
.calc-sidebar {
    position: sticky;
    top: 100px;
}

.calc-result {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-md);
}

.calc-result h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--green-900);
    margin-bottom: 18px;
}

.result-list {
    max-height: 260px;
    overflow-y: auto;
    margin-bottom: 18px;
}

.result-empty {
    font-size: 0.9rem;
    color: var(--gray-400);
    text-align: center;
    padding: 20px 0;
}

.result-item {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.875rem;
}

.result-item:last-child {
    border-bottom: none;
}

.result-item span:last-child {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--green-700);
    white-space: nowrap;
}

.result-total {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 18px;
    background: linear-gradient(135deg, var(--green-50), var(--gray-50));
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.result-total span {
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: 4px;
}

.result-total strong {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--green-700);
}

.result-disclaimer {
    font-size: 0.8rem;
    color: var(--gray-500);
    line-height: 1.5;
    margin-bottom: 18px;
    padding: 12px;
    background: #FFF8E7;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--gold);
}

.result-disclaimer i {
    color: var(--gold);
    margin-right: 4px;
}

.result-link {
    display: block;
    text-align: center;
    margin-top: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--green-600);
}

.result-link:hover {
    color: var(--green-800);
}

#sendCalcBtn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@media (max-width: 900px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }
    
    .calc-sidebar {
        position: static;
        order: -1;
    }
    
    .calc-fields {
        grid-template-columns: 1fr;
    }
}