.estimator-grid {
    display: grid;
    grid-template-columns: 0.8fr 0.8fr 0.8fr 0.8fr;
    gap: var(--space);
}

.product-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--clr-surface-secondary, #f8f9fa);
    border-radius: 8px;
    transition: background 0.2s;
}

.product-item:hover {
    background: var(--clr-surface-tertiary, #e9ecef);
}

.product-info {
    display: flex;
    flex-direction: column;
}

.product-name {
    font-weight: 600;
    font-size: 14px;
}

.product-price {
    font-size: 12px;
    color: var(--clr-text-secondary, #6c757d);
}

.product-quantity {
    width: 80px;
}

.cost-summary-card {
    margin-top: 24px;
    border: 2px solid var(--clr-brand-primary);
    padding: 1%;
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    margin-top: 16px;
}

.summary-item {
    display: contents;
}

.summary-label {
    font-weight: 500;
}

.summary-value {
    font-weight: 600;
    text-align: right;
}

.summary-divider {
    grid-column: span 2;
    height: 1px;
    background: var(--clr-border, #dee2e6);
    margin: 8px 0;
}

.grand-total-row {
    display: contents;
    font-size: 20px;
    color: var(--clr-brand-primary);
}

.grand-total-label {
    font-weight: 700;
}

.grand-total-value {
    font-weight: 800;
}

.justify-center {
    justify-content: center;
}

.margin-top-2 {
    margin-top: 5%;
}

.summary-empty-message {
    grid-column: span 2;
    color: var(--clr-text-secondary);
    text-align: center;
}