/* ============================================================
   FLAVSTART PRODUCT DETAIL STYLES
   ============================================================ */

/* Main Layout */
.fs-product-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--fs-space-10);
    margin-bottom: var(--fs-space-12);
}

/* ── Gallery ── */
.fs-product-gallery__main {
    position: relative;
    border-radius: var(--fs-radius-xl);
    overflow: hidden;
    background: var(--fs-gray-50);
    aspect-ratio: 1;
}

.fs-product-gallery__image-wrapper {
    width: 100%;
    height: 100%;
    cursor: zoom-in;
    overflow: hidden;
}

.fs-product-gallery__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.fs-product-gallery__image-wrapper:hover .fs-product-gallery__image {
    transform: scale(1.15);
}

.fs-product-gallery__badge {
    position: absolute;
    top: var(--fs-space-4);
    left: var(--fs-space-4);
    z-index: 2;
}

.fs-product-gallery__fullscreen {
    position: absolute;
    bottom: var(--fs-space-4);
    right: var(--fs-space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.9);
    border-radius: var(--fs-radius-full);
    box-shadow: var(--fs-shadow-md);
    z-index: 2;
    transition: all var(--fs-transition-fast);
}

.fs-product-gallery__fullscreen:hover {
    background: var(--fs-primary);
    color: var(--fs-white);
}

.fs-product-gallery__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.9);
    border-radius: var(--fs-radius-full);
    box-shadow: var(--fs-shadow-md);
    z-index: 2;
    opacity: 0;
    transition: all var(--fs-transition-fast);
}

.fs-product-gallery:hover .fs-product-gallery__nav {
    opacity: 1;
}

.fs-product-gallery__nav--prev { left: var(--fs-space-3); }
.fs-product-gallery__nav--next { right: var(--fs-space-3); }

.fs-product-gallery__nav:hover {
    background: var(--fs-primary);
    color: var(--fs-white);
}

/* Thumbnails */
.fs-product-gallery__thumbs {
    display: flex;
    gap: var(--fs-space-3);
    margin-top: var(--fs-space-4);
    overflow-x: auto;
    scrollbar-width: none;
}

.fs-product-gallery__thumbs::-webkit-scrollbar { display: none; }

.fs-product-gallery__thumb {
    width: 72px;
    height: 72px;
    flex-shrink: 0;
    border-radius: var(--fs-radius-md);
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color var(--fs-transition-fast);
}

.fs-product-gallery__thumb.is-active {
    border-color: var(--fs-primary);
}

.fs-product-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Lightbox */
.fs-lightbox {
    position: fixed;
    inset: 0;
    z-index: var(--fs-z-modal);
    display: none;
}

.fs-lightbox.is-active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.fs-lightbox__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.9);
}

.fs-lightbox__content {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
}

.fs-lightbox__image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
}

.fs-lightbox__close {
    position: absolute;
    top: -40px;
    right: 0;
    color: var(--fs-white);
    padding: var(--fs-space-2);
}

.fs-lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--fs-white);
    padding: var(--fs-space-3);
    background: rgba(255,255,255,0.15);
    border-radius: var(--fs-radius-full);
    transition: background var(--fs-transition-fast);
}

.fs-lightbox__nav:hover { background: rgba(255,255,255,0.3); }
.fs-lightbox__nav--prev { left: -60px; }
.fs-lightbox__nav--next { right: -60px; }

.fs-lightbox__counter {
    text-align: center;
    color: var(--fs-gray-400);
    font-size: var(--fs-text-sm);
    margin-top: var(--fs-space-4);
}

/* ── Product Info ── */
.fs-product-info {
    position: sticky;
    top: calc(var(--fs-sticky-header-height) + var(--fs-space-4));
}

.fs-product-info__title {
    font-size: var(--fs-text-2xl);
    font-weight: var(--fs-font-bold);
    line-height: var(--fs-leading-snug);
    margin-bottom: var(--fs-space-4);
}

.fs-product-info__meta {
    display: flex;
    align-items: center;
    gap: var(--fs-space-4);
    margin-bottom: var(--fs-space-5);
    flex-wrap: wrap;
}

.fs-product-info__review-link {
    font-size: var(--fs-text-sm);
    color: var(--fs-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.fs-product-info__sku {
    font-size: var(--fs-text-xs);
    color: var(--fs-gray-400);
}

.fs-product-info__price {
    margin-bottom: var(--fs-space-4);
}

.fs-price--lg .fs-price__current { font-size: var(--fs-text-3xl); }
.fs-price--lg .fs-price__original { font-size: var(--fs-text-lg); }

/* Stock */
.fs-product-info__stock {
    margin-bottom: var(--fs-space-5);
}

.fs-product-info__stock-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--fs-space-1);
    font-size: var(--fs-text-sm);
    font-weight: var(--fs-font-medium);
    padding: var(--fs-space-1) var(--fs-space-3);
    border-radius: var(--fs-radius-full);
}

.fs-product-info__stock-badge--instock {
    color: var(--fs-success);
    background: var(--fs-success-light);
}

.fs-product-info__stock-badge--backorder {
    color: var(--fs-warning);
    background: var(--fs-warning-light);
}

.fs-product-info__stock-badge--outofstock {
    color: var(--fs-error);
    background: var(--fs-error-light);
}

.fs-product-info__short-desc {
    font-size: var(--fs-text-sm);
    color: var(--fs-gray-600);
    line-height: var(--fs-leading-relaxed);
    margin-bottom: var(--fs-space-6);
    padding-bottom: var(--fs-space-6);
    border-bottom: 1px solid var(--fs-gray-100);
}

/* Add to Cart Area */
.fs-product-info__add-to-cart {
    margin-bottom: var(--fs-space-5);
}

.fs-product-info__quantity {
    margin-bottom: var(--fs-space-4);
}

.fs-product-info__buttons {
    display: flex;
    gap: var(--fs-space-3);
}

.fs-product-info__buttons .fs-btn {
    flex: 1;
}

/* Actions */
.fs-product-info__actions {
    display: flex;
    gap: var(--fs-space-3);
    margin-bottom: var(--fs-space-6);
}

/* Trust Signals */
.fs-product-info__trust {
    padding: var(--fs-space-5);
    background: var(--fs-gray-50);
    border-radius: var(--fs-radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--fs-space-4);
}

.fs-trust-item {
    display: flex;
    align-items: center;
    gap: var(--fs-space-3);
    font-size: var(--fs-text-sm);
}

.fs-trust-item strong {
    display: block;
    font-size: var(--fs-text-sm);
}

.fs-trust-item span {
    font-size: var(--fs-text-xs);
    color: var(--fs-gray-500);
}

/* ── Seller Box ── */
.fs-seller-box {
    padding: var(--fs-space-6);
    background: var(--fs-gray-50);
    border-radius: var(--fs-radius-xl);
    margin-bottom: var(--fs-space-8);
}

.fs-seller-box__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--fs-space-6);
    flex-wrap: wrap;
}

.fs-seller-box__profile {
    display: flex;
    align-items: center;
    gap: var(--fs-space-4);
}

.fs-seller-box__avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--fs-radius-full);
    object-fit: cover;
    border: 3px solid var(--fs-white);
    box-shadow: var(--fs-shadow-md);
}

.fs-seller-box__name {
    font-size: var(--fs-text-md);
    font-weight: var(--fs-font-bold);
    display: flex;
    align-items: center;
    gap: var(--fs-space-1);
    margin-bottom: var(--fs-space-1);
}

.fs-seller-box__name a:hover { color: var(--fs-primary); }

.fs-seller-box__location {
    display: flex;
    align-items: center;
    gap: var(--fs-space-1);
    font-size: var(--fs-text-xs);
    color: var(--fs-gray-500);
    margin-bottom: var(--fs-space-2);
}

.fs-seller-box__stats {
    display: flex;
    align-items: center;
    gap: var(--fs-space-4);
}

.fs-seller-box__stat {
    display: flex;
    align-items: center;
    gap: var(--fs-space-1);
    font-size: var(--fs-text-xs);
    color: var(--fs-gray-500);
}

.fs-seller-box__actions {
    display: flex;
    gap: var(--fs-space-2);
}

/* ── Product Tabs ── */
.fs-product-tabs {
    margin-bottom: var(--fs-space-12);
}

.fs-product-tabs .fs-tab {
    font-size: var(--fs-text-base);
    padding: var(--fs-space-4) var(--fs-space-6);
}

.fs-tab__count {
    font-size: var(--fs-text-xs);
    color: var(--fs-gray-400);
    margin-left: var(--fs-space-1);
}

.fs-tab-content {
    font-size: var(--fs-text-sm);
    line-height: var(--fs-leading-relaxed);
    color: var(--fs-gray-600);
}

.fs-tab-content h3,
.fs-tab-content h4 {
    margin: var(--fs-space-6) 0 var(--fs-space-3);
}

.fs-tab-content p {
    margin-bottom: var(--fs-space-4);
}

/* Related Products */
.fs-related-section__title {
    font-size: var(--fs-text-xl);
    font-weight: var(--fs-font-bold);
    margin-bottom: var(--fs-space-6);
}

/* Responsive */
@media (max-width: 1023px) {
    .fs-product-main {
        grid-template-columns: 1fr 1fr;
        gap: var(--fs-space-6);
    }
}

@media (max-width: 767px) {
    .fs-product-main {
        grid-template-columns: 1fr;
    }

    .fs-product-info {
        position: static;
    }

    .fs-product-info__title {
        font-size: var(--fs-text-xl);
    }

    .fs-price--lg .fs-price__current {
        font-size: var(--fs-text-2xl);
    }

    .fs-product-info__buttons {
        flex-direction: column;
    }

    .fs-seller-box__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .fs-product-gallery__thumbs {
        gap: var(--fs-space-2);
    }

    .fs-product-gallery__thumb {
        width: 56px;
        height: 56px;
    }

    .fs-lightbox__nav--prev { left: var(--fs-space-2); }
    .fs-lightbox__nav--next { right: var(--fs-space-2); }
}