.product-show {
    width: 100%;
    max-width: 1200px;
    background: #fff;
    margin: 0 auto;
}

.product-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: flex-start;
}

.product-showcase {
    grid-row: 1 / span 2
}

.product-image {
    text-align: center;
    margin-bottom: 18px;
    padding: 5rem;
}

.product-main-image {
    width: 100%;
    height: auto;
    padding: 12px;
}

.product-description-pane {
    height: 100%;
    padding: 24px 20px 20px 20px;
    background-color: #f7f9fa;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.product-description-pane h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: #444;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.product-description-pane p {
    font-size: 1rem;
    line-height: 1.7;
    color: #555;
}

.product-header {
    margin-bottom: 18px;
}

.product-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 12px 0;
    color: #222;
    letter-spacing: -1px;
}

.product-price {
    padding: 10px 0 18px 0;
    margin-bottom: 12px;
    display: flex;
    flex-direction: column;
}

.price-amount {
    font-size: 32px;
    font-weight: 600;
    margin: 0 0 10px 0;
}

.tax-amount {
    font-size: 16px;
    color: var(--font-color-secondary);
    font-weight: 300;
}

.purchase-pane {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.product-purchase-section {
    padding: 24px 20px 18px 20px;
}

.product-actions {
    display: flex;
    align-items: flex-end;
    gap: 15px;
    margin-top: 18px;
}

.add-to-cart-form {
    display: flex;
    align-items: flex-end;
    gap: 15px;
}

.quantity-selector {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.quantity-selector label {
    font-size: 0.92rem;
    color: #666;
    font-weight: 500;
}

.quantity-input {
    width: 60px;
    padding: 8px;
    border: 1px solid #ddd;
    text-align: center;
    background: #fff;
}

.quantity-input:disabled {
    background-color: #f5f5f5;
    color: #999;
    cursor: not-allowed;
    opacity: 0.6;
}

.btn {
    height: 44px;
    padding: 10px 22px;
    border: none;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-sizing: border-box;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-color-dark);
}

.btn-primary:disabled {
    background-color: #cccccc;
    color: #666666;
    cursor: not-allowed;
    opacity: 0.6;
}

.btn-primary:disabled:hover {
    background-color: #cccccc;
}

.product-specs {
    grid-column: span 2;
    margin-top: 18px;
    list-style: none;
    display: flex;
    flex-direction: column;
}

.product-specs .spec-title {
    padding: 8px;
}

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

.product-specs .spec-list .spec-item {
    font-size: 1rem;
    font-weight: 500;
    padding: 8px;
}

.product-specs .spec-list .spec-item:nth-child(odd) {
    background: #f7f9fa;
}

.product-specs .spec-list .spec-item:nth-child(even) {
    background: none;
}