/* ==============================================
   PinForge — Product Detail Page Styles
   Used by product-m13.html, product-phonecase.html
   ============================================== */

/* ---- Breadcrumb ---- */
.breadcrumb-bar {
    background: var(--gray-50);
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-200);
}
.breadcrumb {
    font-size: 14px;
    color: var(--gray-500);
}
.breadcrumb a {
    color: var(--gray-700);
}
.breadcrumb a:hover {
    color: var(--primary);
}
.breadcrumb .current {
    color: var(--dark);
    font-weight: 500;
}

/* ---- Product Hero ---- */
.product-hero {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}
.product-hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: flex-start;
}

/* Gallery */
.product-gallery {
    position: sticky;
    top: 90px;
}
.gallery-main {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    aspect-ratio: 1;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
}
.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: opacity 0.3s ease;
}
.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 16px;
}
.thumb {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0;
    cursor: pointer;
    overflow: hidden;
    aspect-ratio: 1;
    transition: var(--transition);
}
.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.thumb:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}
.thumb.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(230,57,70,0.15);
}

/* Product Info */
.product-badges {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.badge-new, .badge-hot {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
}
.badge-new {
    background: rgba(230,57,70,0.1);
    color: var(--primary);
}
.badge-hot {
    background: rgba(245,158,11,0.1);
    color: #B45309;
}

.product-info h1 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    color: var(--dark);
    margin-bottom: 8px;
    line-height: 1.2;
}
.product-subtitle {
    font-size: 16px;
    color: var(--gray-700);
    margin-bottom: 16px;
    line-height: 1.5;
}
.product-rating {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}
.product-rating .stars {
    color: #F59E0B;
    font-size: 18px;
    letter-spacing: 2px;
}
.rating-text {
    font-size: 14px;
    color: var(--gray-500);
}

/* Price Box */
.price-box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 28px;
}
.price-tier {
    position: relative;
    padding: 16px 12px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}
.price-tier:hover {
    border-color: var(--primary);
}
.price-tier.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, #FFF5F5, #FFFFFF);
}
.tier-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--primary);
    color: var(--white);
    padding: 3px 8px;
    border-radius: 100px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.tier-qty {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: 6px;
    font-weight: 500;
}
.tier-price {
    display: block;
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
    font-family: var(--font-display);
}
.tier-price small {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 500;
}

/* Highlights */
.product-highlights {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.highlight-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.highlight-icon {
    font-size: 24px;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background: rgba(230,57,70,0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.highlight-item strong {
    display: block;
    color: var(--dark);
    font-size: 15px;
    margin-bottom: 2px;
    font-family: var(--font-display);
}
.highlight-item p {
    color: var(--gray-500);
    font-size: 13px;
    line-height: 1.5;
    margin: 0;
}

/* Actions */
.product-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 24px;
}
.product-actions .btn-lg {
    padding: 16px;
    font-size: 15px;
}

/* Trust Row */
.trust-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
    font-size: 13px;
    color: var(--gray-700);
}

/* ---- Key Features (3 col) ---- */
.key-features { padding: 80px 0; }
.features-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}
.feature-num {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 12px;
}
.feature-card h3 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 8px;
}
.feature-card p {
    color: var(--gray-700);
    font-size: 14px;
    line-height: 1.6;
}
.feature-cta {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    border-color: var(--primary);
}
.feature-cta h3, .feature-cta p {
    color: var(--white);
}
.feature-cta p {
    opacity: 0.95;
}
.feature-cta .text-link {
    color: var(--white);
    text-decoration: underline;
    font-weight: 600;
}

/* ---- Specs Section ---- */
.specs-section { padding: 80px 0; background: var(--gray-50); }
.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.specs-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--gray-200);
}
.specs-card h3 {
    font-size: 20px;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-100);
}
.specs-table {
    width: 100%;
    border-collapse: collapse;
}
.specs-table tr {
    border-bottom: 1px solid var(--gray-100);
}
.specs-table tr:last-child {
    border-bottom: none;
}
.specs-table td {
    padding: 12px 0;
    font-size: 14px;
}
.specs-table td:first-child {
    color: var(--gray-500);
    font-weight: 500;
    width: 45%;
}
.specs-table td:last-child {
    color: var(--dark);
    font-weight: 600;
    text-align: right;
}

/* ---- Languages Section ---- */
.languages-section { padding: 80px 0; }
.languages-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    max-width: 900px;
    margin: 0 auto;
}
.lang-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 100px;
    font-size: 14px;
    color: var(--gray-900);
    transition: var(--transition);
    cursor: default;
}
.lang-tag:hover {
    border-color: var(--primary);
    background: rgba(230,57,70,0.04);
    transform: translateY(-2px);
}

/* ---- Detail Gallery ---- */
.detail-gallery { padding: 80px 0; background: var(--gray-50); }
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.detail-grid img {
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    aspect-ratio: 1;
    object-fit: cover;
    transition: var(--transition);
    background: var(--white);
}
.detail-grid img:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow);
}

/* ---- Use Cases ---- */
.use-cases { padding: 80px 0; }
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.case-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
}
.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}
.case-icon {
    font-size: 40px;
    margin-bottom: 12px;
}
.case-card h3 {
    font-size: 17px;
    color: var(--dark);
    margin-bottom: 8px;
}
.case-card p {
    color: var(--gray-700);
    font-size: 14px;
    line-height: 1.5;
}

/* ---- Production Info ---- */
.production-info { padding: 80px 0; background: var(--gray-50); }
.prod-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}
.prod-grid h2 {
    font-size: 32px;
    color: var(--dark);
    margin-bottom: 12px;
}
.prod-grid > div > p {
    color: var(--gray-700);
    font-size: 16px;
    margin-bottom: 24px;
}
.check-list {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
}
.check-list li {
    padding: 8px 0;
    color: var(--gray-700);
    font-size: 15px;
    border-bottom: 1px solid var(--gray-200);
}
.check-list li:last-child {
    border-bottom: none;
}
.prod-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
}

/* ---- Video Section ---- */
.video-section { padding: 80px 0; background: var(--gray-50); }
.video-wrapper {
    max-width: 900px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--dark);
    box-shadow: var(--shadow-lg);
    aspect-ratio: 16 / 9;
}
.video-wrapper video {
    width: 100%;
    height: 100%;
    display: block;
}

/* ---- Materials Section ---- */
.materials-section { padding: 80px 0; }
.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}
.material-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
}
.material-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}
.material-icon {
    font-size: 40px;
    margin-bottom: 12px;
}
.material-card h3 {
    font-size: 17px;
    color: var(--dark);
    margin-bottom: 8px;
}
.material-card p {
    color: var(--gray-700);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 12px;
}
.material-price {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(230,57,70,0.08);
    color: var(--primary);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
}

/* ---- Models Section ---- */
.models-section { padding: 80px 0; background: var(--gray-50); }
.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.model-group {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--gray-200);
}
.model-group h3 {
    font-size: 16px;
    color: var(--primary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-100);
}
.model-group ul {
    list-style: none;
    padding: 0;
}
.model-group ul li {
    padding: 6px 0;
    color: var(--gray-700);
    font-size: 14px;
    position: relative;
    padding-left: 16px;
}
.model-group ul li::before {
    content: '📱';
    position: absolute;
    left: 0;
    font-size: 10px;
    top: 8px;
}

/* ---- Printing Section ---- */
.printing-section { padding: 80px 0; }
.printing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.print-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}
.print-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}
.print-card h3 {
    font-size: 17px;
    color: var(--dark);
    margin-bottom: 8px;
}
.print-card p {
    color: var(--gray-700);
    font-size: 14px;
    line-height: 1.6;
}

/* ---- Gallery Mixed (white bg) ---- */
.gallery-mixed { padding: 0; }
.mixed-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}
.mixed-grid img {
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    aspect-ratio: 1;
    object-fit: cover;
    background: var(--white);
    transition: var(--transition);
}
.mixed-grid img:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow);
}

/* ---- Detail Views (per-SKU rows) ---- */
.detail-views { padding: 80px 0; background: var(--gray-50); }
.sku-section {
    margin-bottom: 48px;
}
.sku-section h3 {
    font-size: 24px;
    color: var(--dark);
    margin-bottom: 20px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
}
.detail-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}
.detail-row img {
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    aspect-ratio: 1;
    object-fit: cover;
    transition: var(--transition);
}
.detail-row img:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow);
}

/* ---- Related Products ---- */
.related-products { padding: 80px 0; }
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.related-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    color: var(--gray-900);
    transition: var(--transition);
    display: block;
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    color: var(--gray-900);
}
.related-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    background: var(--gray-50);
}
.related-card h3 {
    padding: 16px 20px 4px;
    font-size: 17px;
    color: var(--dark);
}
.related-card p {
    padding: 0 20px 20px;
    color: var(--gray-700);
    font-size: 14px;
}

/* ---- Responsive ---- */
@media (max-width: 968px) {
    .product-hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .product-gallery { position: static; }
    .features-3col { grid-template-columns: 1fr 1fr; }
    .specs-grid { grid-template-columns: 1fr; }
    .prod-grid { grid-template-columns: 1fr; gap: 32px; }
    .detail-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .product-hero { padding: 32px 0; }
    .features-3col { grid-template-columns: 1fr; }
    .price-box { grid-template-columns: 1fr; }
    .gallery-thumbs { grid-template-columns: repeat(4, 1fr); }
    .detail-row { grid-template-columns: 1fr; }
    .product-actions .btn { padding: 14px; font-size: 14px; }
}