/* ==========================================================================
   Single product page
   ========================================================================== */

.single-product div.product {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
    gap: clamp(var(--cas-space-xl), 5vw, var(--cas-space-2xl));
    margin-bottom: var(--cas-space-2xl);
}

.single-product div.product .woocommerce-product-gallery {
    width: 100% !important;
    margin: 0 !important;
    float: none !important;
}

.single-product div.product .summary,
.single-product div.product .entry-summary {
    width: 100% !important;
    margin: 0 !important;
    float: none !important;
    padding: var(--cas-space-xl);
    border: 1px solid var(--cas-border);
    border-radius: var(--cas-radius-lg);
    box-shadow: var(--cas-shadow-sm);
    align-self: start;
}

/* Full-width blocks below the two-column area */
.single-product div.product .woocommerce-tabs,
.single-product div.product .related,
.single-product div.product .upsells,
.single-product .cas-compat {
    grid-column: 1 / -1;
}

/* Gallery */
.woocommerce-product-gallery {
    position: relative;
}

.woocommerce-product-gallery__image img {
    border-radius: var(--cas-radius-lg);
}

.flex-control-thumbs {
    display: flex;
    gap: var(--cas-space-sm);
    margin-top: var(--cas-space-sm);
    padding: 0;
    list-style: none;
}

.flex-control-thumbs li {
    width: 72px !important;
}

.flex-control-thumbs img {
    border-radius: var(--cas-radius-sm);
    border: 1px solid var(--cas-border);
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--cas-transition);
}

.flex-control-thumbs img.flex-active,
.flex-control-thumbs img:hover {
    opacity: 1;
    border-color: var(--cas-accent);
}

/* Title + price */
.single-product .product_title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    line-height: 1.15;
    margin-bottom: var(--cas-space-sm);
}

.single-product .summary .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cas-text);
    margin-bottom: var(--cas-space-md);
}

.single-product .summary .price del {
    color: var(--cas-text-secondary);
    font-weight: 400;
    font-size: 1.1rem;
    margin-right: var(--cas-space-sm);
}

.single-product .summary .price ins {
    text-decoration: none;
    color: var(--cas-accent);
}

.single-product div.product > .onsale {
    top: 16px;
    left: 16px;
    z-index: 3;
    min-height: auto;
    padding: 7px 12px;
    border-radius: var(--cas-radius-sm);
    background: var(--cas-accent);
    box-shadow: 0 4px 10px rgba(109, 40, 217, 0.22);
    font-size: 0.7rem;
    line-height: 1.2;
    letter-spacing: 0.04em;
}

.single-product div.product > .onsale::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    border-top: 5px solid var(--cas-accent-hover);
    border-left: 5px solid transparent;
}

.single-product .woocommerce-product-rating {
    margin-bottom: var(--cas-space-md);
}

.single-product .woocommerce-product-details__short-description {
    color: var(--cas-text-secondary);
    margin-bottom: var(--cas-space-lg);
}

.single-product .product_meta {
    display: none;
}

/* Quantity + add to cart */
.single-product form.cart {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--cas-space-sm);
    margin-bottom: var(--cas-space-lg);
}

.single-product form.cart .quantity input.qty {
    width: 72px;
    padding: 12px 8px;
    border: 1px solid var(--cas-border);
    text-align: center;
    font-size: 1rem;
}

.single-product form.cart .quantity {
    display: inline-flex;
    align-items: stretch;
}

.single-product form.cart .quantity .cas-quantity__button {
    width: 42px;
    border: 1px solid var(--cas-border);
    background: var(--cas-bg-secondary);
    color: var(--cas-text);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}

.single-product form.cart .quantity .cas-quantity__button--decrease {
    border-radius: var(--cas-radius-md) 0 0 var(--cas-radius-md);
}

.single-product form.cart .quantity .cas-quantity__button--increase {
    border-radius: 0 var(--cas-radius-md) var(--cas-radius-md) 0;
}

.single-product form.cart .quantity .cas-quantity__button:hover:not(:disabled) {
    background: var(--cas-accent);
    color: #fff;
}

.single-product form.cart .quantity .cas-quantity__button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.single-product .single_add_to_cart_button {
    padding: 13px 28px;
    background: var(--cas-accent);
    color: #fff;
    border: none;
    border-radius: var(--cas-radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.single-product .single_add_to_cart_button:hover {
    background: var(--cas-accent-hover);
}

.single-product .cas-buy-now {
    order: 2;
    min-width: 150px;
}

.single-product .cas-buy-now:hover {
    background: var(--cas-accent-hover);
    color: #fff;
}

.single-product form.cart .single_add_to_cart_button:not(.cas-buy-now) {
    order: 1;
    background: var(--cas-bg);
    color: var(--cas-accent);
    border: 1px solid var(--cas-accent);
}

.single-product form.cart .single_add_to_cart_button:not(.cas-buy-now):hover {
    background: var(--cas-bg-secondary);
}

.cas-mobile-buy-bar {
    display: none;
}

/* Variations table */
.single-product table.variations {
    width: 100%;
    margin-bottom: var(--cas-space-md);
}

.single-product table.variations td,
.single-product table.variations th {
    padding: 6px 0;
    vertical-align: middle;
}

.single-product table.variations select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--cas-border);
    border-radius: var(--cas-radius-md);
}

/* Trust info list */
.cas-product-trust {
    display: flex;
    flex-direction: column;
    gap: var(--cas-space-sm);
    margin: var(--cas-space-lg) 0 0;
    padding: var(--cas-space-md);
    background: var(--cas-bg-secondary);
    border-radius: var(--cas-radius-md);
}

.cas-product-trust__item {
    display: flex;
    align-items: center;
    gap: var(--cas-space-sm);
    font-size: 0.9rem;
    color: var(--cas-text);
}

.cas-product-trust__item svg {
    color: var(--cas-accent);
    flex: 0 0 auto;
}

/* Compatibility box */
.cas-compat {
    margin: var(--cas-space-xl) 0;
    padding: var(--cas-space-lg);
    border: 1px solid var(--cas-border);
    border-radius: var(--cas-radius-lg);
    background: var(--cas-bg);
}

.cas-compat__title {
    font-size: 1.25rem;
    margin-bottom: var(--cas-space-md);
}

.cas-compat__table-wrap {
    overflow-x: auto;
}

.cas-compat__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.cas-compat__table th,
.cas-compat__table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--cas-border);
}

.cas-compat__table th {
    background: var(--cas-bg-secondary);
    font-weight: 600;
}

.cas-compat__notes {
    margin-top: var(--cas-space-md);
    color: var(--cas-text-secondary);
}

.cas-compat__disclaimer {
    margin: var(--cas-space-md) 0 0;
    padding: var(--cas-space-md);
    background: rgba(109, 40, 217, 0.06);
    border-left: 3px solid var(--cas-accent);
    border-radius: var(--cas-radius-sm);
    font-size: 0.88rem;
    color: var(--cas-text);
}

/* Tabs */
.woocommerce-tabs {
    margin-top: var(--cas-space-xl);
}

.woocommerce-tabs ul.tabs {
    display: flex;
    gap: var(--cas-space-md);
    border-bottom: 1px solid var(--cas-border);
    margin-bottom: var(--cas-space-lg);
    padding: 0;
    list-style: none;
}

.woocommerce-tabs ul.tabs li {
    list-style: none;
}

.woocommerce-tabs ul.tabs li a {
    display: inline-block;
    padding: 10px 4px;
    font-weight: 600;
    color: var(--cas-text-secondary);
    border-bottom: 2px solid transparent;
}

.woocommerce-tabs ul.tabs li.active a {
    color: var(--cas-accent);
    border-bottom-color: var(--cas-accent);
}

/* Related products heading */
.related > h2,
.upsells > h2 {
    margin-bottom: var(--cas-space-lg);
}

/* Responsive */
@media (max-width: 767px) {
    .single-product div.product {
        grid-template-columns: 1fr;
        gap: var(--cas-space-lg);
    }
    .single-product div.product .summary,
    .single-product div.product .entry-summary {
        padding: var(--cas-space-lg);
    }
    .single-product form.cart {
        flex-direction: column;
        align-items: stretch;
    }
    .single-product form.cart .quantity {
        width: 100%;
    }
    .single-product form.cart .quantity input.qty {
        width: auto;
        flex: 1;
    }
    .single-product .single_add_to_cart_button,
    .single-product .cas-buy-now {
        width: 100%;
    }

    .single-product form.cart {
        padding-bottom: 0;
    }

    .single-product .cas-buy-now {
        order: 1;
    }

    .single-product form.cart .single_add_to_cart_button:not(.cas-buy-now) {
        order: 2;
    }

    body.single-product {
        padding-bottom: 78px;
    }

    .cas-mobile-buy-bar {
        position: fixed;
        right: 0;
        bottom: 0;
        left: 0;
        z-index: 1000;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--cas-space-md);
        padding: 10px max(16px, env(safe-area-inset-right)) max(10px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
        background: var(--cas-bg);
        border-top: 1px solid var(--cas-border);
        box-shadow: 0 -4px 16px rgba(36, 19, 63, 0.12);
    }

    .cas-mobile-buy-bar__price {
        min-width: 0;
        color: var(--cas-text);
        font-weight: 700;
    }

    .cas-mobile-buy-bar__price del {
        color: var(--cas-text-secondary);
        font-weight: 400;
        margin-right: 4px;
    }

    .cas-mobile-buy-bar__price ins {
        color: var(--cas-accent);
        text-decoration: none;
    }

    .cas-mobile-buy-bar__button {
        flex: 1 1 auto;
        max-width: 220px;
        min-height: 48px;
    }
}