/**
 * SibylMary Store - Product Detail Styles
 * 产品详情页样式表
 */

/* Breadcrumb */
.breadcrumb_nav {
    background: var(--color_background);
    padding: var(--space_sm) 0;
    border-bottom: 1px solid var(--color_border);
}

.nav_inner {
    max-width: var(--container_max);
    margin: 0 auto;
    padding: 0 var(--container_padding);
    font-size: 0.8125rem;
    color: var(--color_secondary);
}

.nav_inner a {
    color: var(--color_secondary);
}

.nav_inner a:hover {
    color: var(--color_accent);
}

.nav_inner span {
    margin: 0 0.5rem;
}

.nav_inner .current {
    color: var(--color_primary);
}

/* Product Detail */
.product_detail {
    padding: var(--space_lg) 0;
}

.detail_inner {
    max-width: var(--container_max);
    margin: 0 auto;
    padding: 0 var(--container_padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space_xl);
}

/* Image Gallery */
.image_gallery {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.main_image {
    aspect-ratio: 3/4;
    background: var(--color_background);
    margin-bottom: var(--space_sm);
    overflow: hidden;
}

.main_image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder_image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color_secondary);
}

.thumbnail_list {
    display: flex;
    gap: var(--space_xs);
}

.thumb_btn {
    width: 70px;
    height: 90px;
    border: 2px solid transparent;
    background: var(--color_background);
    cursor: pointer;
    padding: 0;
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.thumb_btn:hover,
.thumb_btn.active {
    border-color: var(--color_accent);
}

.thumb_btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Product Info */
.product_info {
    padding-top: var(--space_sm);
}

.product_title {
    font-family: var(--font_heading);
    font-size: 1.75rem;
    font-weight: 500;
    line-height: 1.3;
    margin-bottom: var(--space_sm);
}

.product_price_section {
    margin-bottom: var(--space_md);
}

.current_price,
.price_range {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color_accent);
}

.short_description {
    color: var(--color_secondary);
    line-height: 1.7;
    margin-bottom: var(--space_lg);
    padding-bottom: var(--space_lg);
    border-bottom: 1px solid var(--color_border);
}

/* Variant Section */
.variant_section {
    margin-bottom: var(--space_lg);
}

.variant_label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space_sm);
}

.variant_label span {
    font-weight: 400;
    color: var(--color_secondary);
}

.size_selector {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space_xs);
}

.size_option {
    min-width: 50px;
    padding: 0.625rem 1rem;
    border: 1px solid var(--color_border);
    background: var(--color_surface);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.size_option:hover {
    border-color: var(--color_primary);
}

.size_option.active {
    background: var(--color_primary);
    color: var(--color_surface);
    border-color: var(--color_primary);
}

/* Quantity Section */
.quantity_section {
    margin-bottom: var(--space_lg);
}

.quantity_section label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space_sm);
}

.quantity_selector {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--color_border);
}

.quantity_selector button {
    width: 40px;
    height: 40px;
    background: var(--color_surface);
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    transition: background 0.2s ease;
}

.quantity_selector button:hover {
    background: var(--color_background);
}

.quantity_selector input {
    width: 50px;
    height: 40px;
    border: none;
    text-align: center;
    font-size: 0.9375rem;
    -moz-appearance: textfield;
}

.quantity_selector input::-webkit-outer-spin-button,
.quantity_selector input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Action Section */
.action_section {
    margin-bottom: var(--space_lg);
    padding-bottom: var(--space_lg);
    border-bottom: 1px solid var(--color_border);
}

.add_to_cart_btn {
    width: 100%;
    padding: var(--space_md);
    background: var(--color_primary);
    color: var(--color_surface);
    border: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.3s ease;
    margin-bottom: var(--space_md);
}

.add_to_cart_btn:hover {
    background: var(--color_accent);
}

.shipping_info {
    font-size: 0.8125rem;
    color: var(--color_secondary);
}

.shipping_info p {
    margin-bottom: var(--space_xs);
}

/* Product Tabs */
.product_tabs {
    margin-top: var(--space_lg);
}

.tab_headers {
    display: flex;
    border-bottom: 1px solid var(--color_border);
    margin-bottom: var(--space_md);
}

.tab_btn {
    padding: var(--space_sm) var(--space_md);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color_secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: -1px;
}

.tab_btn:hover {
    color: var(--color_primary);
}

.tab_btn.active {
    color: var(--color_primary);
    border-bottom-color: var(--color_accent);
}

.tab_contents {
    min-height: 200px;
}

.tab_content {
    display: none;
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color_secondary);
}

.tab_content.active {
    display: block;
}

.description_text {
    white-space: pre-line;
    line-height: 1.6;
}

.description_text br {
    display: block;
    content: "";
    margin-bottom: 0.5em;
}

.description_text p {
    margin-bottom: 0.75em;
}

.details_list {
    list-style: none;
}

.details_list li {
    padding: var(--space_xs) 0;
    border-bottom: 1px solid var(--color_border);
}

.details_list li:last-child {
    border-bottom: none;
}

/* Related Section */
.related_section {
    padding: var(--space_xl) 0;
    background: var(--color_background);
}

.related_section .section_inner {
    max-width: var(--container_max);
    margin: 0 auto;
    padding: 0 var(--container_padding);
}

.related_section h2 {
    font-family: var(--font_heading);
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: var(--space_lg);
    text-align: center;
}

.related_grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space_lg);
}

.product_card.small .card_visual {
    aspect-ratio: 3/4;
}

.product_card.small h3 {
    font-size: 0.875rem;
    font-weight: 400;
    margin-bottom: var(--space_xs);
}

.product_card.small .price {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color_accent);
}

/* Responsive */
@media (max-width: 1024px) {
    .detail_inner {
        grid-template-columns: 1fr;
        gap: var(--space_lg);
    }
    
    .image_gallery {
        position: static;
    }
    
    .main_image {
        aspect-ratio: 4/3;
    }
    
    .related_grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product_title {
        font-size: 1.5rem;
    }
    
    .tab_headers {
        flex-wrap: wrap;
    }
    
    .tab_btn {
        flex: 1;
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .thumbnail_list {
        gap: 0.5rem;
    }
    
    .thumb_btn {
        width: 60px;
        height: 75px;
    }
    
    .related_grid {
        grid-template-columns: 1fr;
    }
}