/* ========================================
   PRODUCT DETAIL PAGE STYLES
   Brutalist Design System
   ======================================== */

.product-detail-page {
    padding: var(--space-6) 0 var(--space-9);
    background-color: var(--bg);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
    margin-bottom: var(--space-8);
}

/* --- MEDIA COLUMN --- */
.product-media-column {
    position: relative;
}

.product-hero-frame {
    background-color: var(--white);
    border: var(--border-width) solid var(--black);
    padding: var(--space-3);
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

.product-hero-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border: 2px solid var(--black);
    position: relative;
    background-color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 0.2s ease;
}

.product-hero-image.transitioning img {
    opacity: 0.5;
}

.image-placeholder-large {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: var(--gray);
    letter-spacing: 2px;
}

.product-image-nav {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 var(--space-2);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.product-hero-image:hover .product-image-nav {
    opacity: 1;
}

.nav-arrow {
    pointer-events: auto;
    width: 40px;
    height: 40px;
    background-color: var(--white);
    border: 2px solid var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.15s ease;
    box-shadow: 2px 2px 0 var(--black);
}

.nav-arrow:hover {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 var(--black);
    background-color: var(--black);
    color: var(--white);
}

.product-thumbnails {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
    overflow-x: auto;
    padding-bottom: 4px;
}

.thumbnail {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    border: 2px solid var(--black);
    padding: 4px;
    background-color: var(--white);
    cursor: pointer;
    transition: all 0.15s ease;
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.thumbnail:hover {
    transform: translate(-2px, -2px);
    box-shadow: 3px 3px 0 var(--black);
}

.thumbnail.active {
    border-color: var(--red);
    box-shadow: 3px 3px 0 var(--red);
    transform: translate(-2px, -2px);
}

/* --- INFO COLUMN --- */
.product-info-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.product-header {
    border-bottom: var(--border-width) solid var(--black);
    padding-bottom: var(--space-4);
}

.product-meta-top {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.product-type-badge {
    font-size: 11px;
    font-weight: bold;
    color: var(--red);
    letter-spacing: 1px;
}

.product-brand {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1px;
}

.product-title {
    font-size: 32px;
    line-height: 1.1;
    margin: 0 0 var(--space-2);
    letter-spacing: 1px;
}

.product-meta-sub {
    font-size: 12px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.vendor-link {
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.15s;
}

.vendor-link:hover {
    color: var(--red);
}

.vendor-trust-badge {
    background-color: var(--black);
    color: var(--white);
    padding: 2px 6px;
    font-size: 10px;
    letter-spacing: 1px;
}

/* Price Section */
.product-price-section {
    background-color: var(--white);
    border: var(--border-width) solid var(--black);
    padding: var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    box-shadow: 4px 4px 0 var(--black);
}

.price-display {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
}

.current-price {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 1px;
}

.original-price {
    font-size: 16px;
    text-decoration: line-through;
    color: var(--gray);
}

.discount-badge {
    background-color: var(--red);
    color: var(--white);
    font-size: 12px;
    font-weight: bold;
    padding: 4px 8px;
    border: 2px solid var(--black);
}

/* Stock Status */
.stock-status {
    font-size: 12px;
    font-weight: bold;
    padding: 8px 12px;
    background-color: #eee;
    border: 2px solid var(--black);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
}

.stock-status.out-of-stock {
    background-color: var(--black);
    color: var(--white);
}

.status-dot {
    width: 10px;
    height: 10px;
    border: 2px solid var(--black);
    background-color: var(--black);
}

.status-dot.green { background-color: #00ff00; }
.status-dot.red { background-color: var(--red); }

/* Color Selection */
.color-selection {
    background-color: #f0f0f0;
    border: var(--border-width) solid var(--black);
    padding: var(--space-4);
    box-shadow: 4px 4px 0 var(--black);
}

.option-label {
    display: block;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: var(--space-3);
}

.color-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.color-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border: 2px solid var(--black);
    background-color: var(--white);
    font-family: 'Courier New', monospace;
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.15s ease;
}

.color-option:hover {
    transform: translate(-2px, -2px);
    box-shadow: 3px 3px 0 var(--black);
}

.color-option.selected {
    background-color: var(--black);
    color: var(--white);
    transform: translate(-2px, -2px);
    box-shadow: 3px 3px 0 var(--black);
}

.color-dot {
    width: 12px;
    height: 12px;
    border: 1px solid var(--black);
}

/* Main Actions */
.main-actions {
    display: flex;
    gap: var(--space-3);
}

.main-actions form {
    flex: 1;
}

/* --- TABS SECTION --- */
.product-tabs-section {
    margin-top: var(--space-8);
    border: var(--border-width) solid var(--black);
    background-color: var(--white);
    box-shadow: 6px 6px 0 var(--black);
}

.tabs-header {
    display: flex;
    border-bottom: var(--border-width) solid var(--black);
    background-color: #eee;
}

.tab-btn {
    flex: 1;
    padding: 16px;
    border: none;
    border-right: var(--border-width) solid var(--black);
    background-color: transparent;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.tab-btn:last-child {
    border-right: none;
}

.tab-btn:hover {
    background-color: #ddd;
}

.tab-btn.active {
    background-color: var(--white);
    color: var(--red);
    box-shadow: inset 0 -4px 0 var(--red);
}

.tab-content {
    display: none;
    padding: var(--space-6);
}

.tab-content.active {
    display: block;
}

.description-text {
    font-size: 14px;
    line-height: 1.6;
}

.specs-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
}

.spec-item {
    border-bottom: 2px solid #eee;
    padding-bottom: 8px;
}

.spec-item dt {
    font-size: 11px;
    color: var(--gray);
    margin-bottom: 4px;
    font-weight: bold;
}

.spec-item dd {
    font-size: 13px;
    font-weight: bold;
    margin: 0;
}

/* Comments */
.comment-form-simple {
    margin-bottom: var(--space-6);
    border: 2px solid var(--black);
    padding: var(--space-4);
    background-color: #f9f9f9;
}

.brutalist-input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--black);
    border-radius: 0;
    font-family: inherit;
    font-size: 14px;
    margin-bottom: var(--space-3);
    resize: vertical;
}

.comment-item {
    border: 2px solid var(--black);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
    background-color: var(--white);
    box-shadow: 3px 3px 0 var(--black);
}

.comment-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-2);
    font-size: 12px;
    font-weight: bold;
}

.comment-user { color: var(--red); }
.comment-date { color: var(--gray); }

.comment-text {
    font-size: 14px;
    line-height: 1.5;
}

.btn-text-danger {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 10px;
    font-weight: bold;
    text-decoration: underline;
    cursor: pointer;
    margin-top: var(--space-2);
}

.btn-text-danger:hover { color: var(--red); }

/* Related Products */
.related-products {
    margin-top: var(--space-9);
}

.section-heading {
    font-size: 24px;
    border-left: 6px solid var(--red);
    padding-left: var(--space-3);
    margin-bottom: var(--space-6);
    text-transform: uppercase;
}

/* Mobile Sticky Bar */
.mobile-sticky-bar {
    display: none;
    position: sticky;
    bottom: 0;
    background-color: var(--white);
    border-top: 3px solid var(--black);
    padding: 12px;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
}

.sticky-current {
    font-size: 18px;
    font-weight: 900;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .product-media-column {
        position: static;
    }
    
    .product-hero-frame {
        position: static;
    }
}

@media (max-width: 768px) {
    .pd-page {
        padding-top: var(--space-4);
    }

    .product-title {
        font-size: 24px;
    }

    .mobile-sticky-bar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: var(--space-3);
    }

    .sticky-actions {
        flex: 1;
        display: flex;
        gap: var(--space-2);
    }

    .main-actions {
        display: none;
    }
}