/* ============================================
   PRODUCT DETAIL PAGE - ENHANCED DESIGN
   Compact & Elegant Layout
   ============================================ */

/* ============================================
   1. BREADCRUMB WRAPPER
   ============================================ */
.breadcrumb-wrapper {
    margin-bottom: var(--space-4);
    padding: var(--space-3) 0;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.breadcrumb a:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--text-tertiary);
    user-select: none;
    font-size: 0.75rem;
}

.breadcrumb span:last-child {
    color: var(--text-primary);
    font-weight: 600;
}

/* ============================================
   2. PRODUCT DETAIL WRAPPER
   ============================================ */
.product-detail-wrapper {
    margin-bottom: var(--space-8);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
}

@media (min-width: 1024px) {
    .product-detail {
        grid-template-columns: 1fr 1.1fr;
        gap: var(--space-6);
        align-items: start;
    }
}

/* ============================================
   3. PRODUCT IMAGE COLUMN
   ============================================ */
.product-image-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

@media (min-width: 1024px) {
    .product-image-column {
        position: sticky;
        top: var(--space-4);
    }
}

.product-image-section {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.product-image-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(220, 38, 38, 0.03), transparent 70%);
    pointer-events: none;
}

.product-detail-image {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 1;
    transition: transform var(--transition-slow);
}

.product-detail-image:hover {
    transform: scale(1.02);
}

.product-placeholder-large {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--gray-800), var(--gray-700));
    border: 2px dashed var(--border-tertiary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-weight: 600;
    font-size: 0.9375rem;
}

/* ============================================
   4. FUN INFO BOXES - Compact Horizontal
   ============================================ */
.fun-info-container {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.fun-info-box {
    flex: 1;
    min-width: 100px;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.fun-info-box:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.fun-icon {
    flex-shrink: 0;
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.08), rgba(212, 160, 18, 0.04));
    border-radius: var(--radius-md);
}

.fun-text {
    flex: 1;
    min-width: 0;
}

.fun-text strong {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fun-text p {
    display: none;
}

@media (min-width: 1024px) {
    .fun-info-container {
        flex-direction: column;
    }

    .fun-info-box {
        min-width: unset;
    }

    .fun-text p {
        display: block;
        font-size: 0.6875rem;
        color: var(--text-tertiary);
        margin: 0;
        margin-top: 2px;
    }
}

/* ============================================
   5. PRODUCT INFO SECTION
   ============================================ */
.product-info-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

/* ============================================
   6. PRODUCT TITLE GROUP - Compact
   ============================================ */
.product-title-group {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
}

.product-title-group h1 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    letter-spacing: -0.01em;
}

.product-title-group .category-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.08), rgba(212, 160, 18, 0.04));
    border: 1px solid var(--primary);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   6b. SHORT DESCRIPTION
   ============================================ */
.product-short-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--space-4);
    padding: 0 var(--space-1);
}

/* ============================================
   7. BUY BOX - Combined Price + Action
   ============================================ */
.product-buy-box {
    background: linear-gradient(135deg, var(--bg-card), rgba(212, 160, 18, 0.04));
    border: 1px solid var(--accent-dark, #a47d0c);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-md), 0 0 20px rgba(212, 160, 18, 0.05);
}

.buy-box-price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.buy-box-price-row .price-value {
    font-size: clamp(1.75rem, 5vw, 2.25rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.buy-box-form {
    margin: 0;
}

.buy-box-actions {
    display: flex;
    gap: var(--space-3);
    align-items: stretch;
}

.buy-box-qty {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-md);
    padding: 0 var(--space-3);
    flex-shrink: 0;
}

.buy-box-qty label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.buy-box-qty input {
    width: 50px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    padding: var(--space-2) 0;
}

.buy-btn {
    flex: 1;
    font-size: 1rem !important;
    padding: var(--space-3) var(--space-4) !important;
    font-weight: 700 !important;
}

.buy-box-payments {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-tertiary);
}

.buy-box-pay-icon {
    color: var(--text-tertiary);
    font-size: 1.1rem;
    transition: color 0.2s;
}

.buy-box-pay-icon:hover {
    color: var(--accent);
}

.buy-box-pay-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-left: auto;
}

/* Legacy support */
.product-price-stock-box {
    display: flex;
    gap: var(--space-3);
    background: linear-gradient(135deg, var(--bg-card), rgba(212, 160, 18, 0.03));
    border: 1px solid var(--accent-dark, #a47d0c);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(212, 160, 18, 0.06);
}

.price-display,
.stock-display {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3);
    background: var(--bg-secondary);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-lg);
}

.price-label,
.stock-label {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-value {
    font-size: clamp(1.5rem, 4vw, 1.875rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stock-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    width: fit-content;
}

.stock-badge.in-stock {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.stock-badge.out-of-stock {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

.stock-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ============================================
   8. DESCRIPTION BOX - Compact
   ============================================ */
.product-description-box {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
}

.product-description-box h3 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-description-box h3::before {
    content: '📝';
    font-size: 1rem;
}

.product-description-box p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.8125rem;
}

/* ============================================
   9. PRODUCT ACTION FORM - Compact
   ============================================ */
.product-action-form {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    border-left: 3px solid var(--primary);
}

.quantity-selector-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    padding: var(--space-3);
    background: var(--bg-secondary);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-lg);
}

.quantity-selector-wrapper label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.quantity-selector-wrapper input {
    width: 80px;
    padding: var(--space-2) var(--space-3);
    background: var(--bg-card);
    border: 2px solid var(--border-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.9375rem;
    text-align: center;
    transition: all var(--transition-base);
}

.quantity-selector-wrapper input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.product-action-buttons {
    display: flex;
    gap: var(--space-2);
}

.product-action-buttons .btn {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    font-size: 0.8125rem;
    font-weight: 700;
}

.product-action-buttons .btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.product-action-buttons .btn-primary:hover {
    box-shadow: 0 6px 16px rgba(220, 38, 38, 0.4);
    transform: translateY(-1px);
}

/* ============================================
   10. OUT OF STOCK NOTICE
   ============================================ */
.out-of-stock-notice {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid var(--danger);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    text-align: center;
}

.out-of-stock-notice p {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--danger);
    margin: 0;
}

.out-of-stock-notice::before {
    content: '⚠️';
    display: block;
    font-size: 2rem;
    margin-bottom: var(--space-3);
}

/* ============================================
   11. PRODUCT INFO DETAILS - Compact Grid
   ============================================ */
.product-info-details {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
}

.product-info-details h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-info-details h4::before {
    content: 'ℹ️';
    font-size: 1rem;
}

.product-info-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
}

.product-info-details ul li {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--space-2) var(--space-3);
    background: var(--bg-secondary);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.product-info-details ul li:hover {
    border-color: var(--primary);
}

.product-info-details ul li strong {
    color: var(--text-tertiary);
    font-weight: 600;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ============================================
   12. PAYMENT METHODS BOX - Elegant Compact
   ============================================ */
.payment-methods-box {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
}

.payment-methods-box h3 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.payment-methods-box h3::before {
    content: '💳';
    font-size: 1rem;
}

.payment-methods-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.payment-method-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-secondary);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.payment-method-item:hover {
    border-color: var(--accent);
    background: var(--bg-elevated);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.payment-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, rgba(212, 160, 18, 0.12), rgba(220, 38, 38, 0.04));
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.payment-icon i {
    font-size: 0.9375rem;
    color: var(--accent);
}

.payment-icon .fa-bitcoin {
    color: #f7931a;
}

.payment-icon .fa-litecoin {
    color: #bfbbbb;
}

.payment-icon .fa-ethereum {
    color: #627eea;
}

.payment-icon .fa-dollar-sign {
    color: #26a17b;
}

.payment-icon .fa-wallet {
    color: var(--primary);
}

.payment-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

/* ============================================
   13. RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 1023px) {
    .product-detail {
        gap: var(--space-4);
    }

    .product-image-column,
    .product-info-section {
        gap: var(--space-3);
    }
}

@media (max-width: 639px) {
    .breadcrumb-wrapper {
        margin-bottom: var(--space-3);
    }

    .product-title-group,
    .product-price-stock-box,
    .product-description-box,
    .product-action-form,
    .product-info-details,
    .product-image-section,
    .payment-methods-box {
        padding: var(--space-3);
    }

    .product-price-stock-box {
        flex-direction: column;
    }

    .product-buy-box {
        padding: var(--space-3);
    }

    .buy-box-actions {
        flex-direction: column;
    }

    .buy-box-qty {
        justify-content: center;
        padding: var(--space-2) var(--space-3);
    }

    .buy-box-payments {
        flex-wrap: wrap;
        gap: var(--space-2);
    }

    .product-info-details ul {
        grid-template-columns: 1fr;
    }

    .product-action-buttons {
        flex-direction: column;
    }

    .quantity-selector-wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .quantity-selector-wrapper input {
        width: 100%;
    }

    .fun-info-container {
        gap: var(--space-2);
    }

    .fun-info-box {
        padding: var(--space-2);
    }

    .payment-methods-grid {
        gap: var(--space-1);
    }

    .payment-method-item {
        padding: var(--space-1) var(--space-2);
    }

    .payment-icon {
        width: 24px;
        height: 24px;
    }

    .payment-icon i {
        font-size: 0.75rem;
    }

    .payment-name {
        font-size: 0.6875rem;
    }
}

/* ============================================
   14. ANIMATIONS - Subtle
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-detail > * {
    animation: fadeInUp 0.4s ease-out;
}

.product-detail > *:nth-child(2) {
    animation-delay: 0.05s;
}

.product-info-section > * {
    animation: fadeInUp 0.3s ease-out;
    animation-fill-mode: both;
}

.product-info-section > *:nth-child(1) { animation-delay: 0.1s; }
.product-info-section > *:nth-child(2) { animation-delay: 0.15s; }
.product-info-section > *:nth-child(3) { animation-delay: 0.2s; }
.product-info-section > *:nth-child(4) { animation-delay: 0.25s; }
.product-info-section > *:nth-child(5) { animation-delay: 0.3s; }
.product-info-section > *:nth-child(6) { animation-delay: 0.35s; }

/* ============================================
   15. PRINT STYLES
   ============================================ */
@media print {
    .breadcrumb-wrapper,
    .fun-info-container,
    .product-action-form,
    .payment-methods-box {
        display: none !important;
    }

    .product-detail {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   16. ADDITIONAL POLISH
   ============================================ */

/* Glow effect on primary elements */
.product-title-group:hover,
.product-price-stock-box:hover,
.product-buy-box:hover,
.product-action-form:hover {
    border-color: rgba(220, 38, 38, 0.3);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(220, 38, 38, 0.05);
}

/* Smooth scrollbar for description if needed */
.product-description-box p {
    max-height: 150px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-tertiary) transparent;
}

.product-description-box p::-webkit-scrollbar {
    width: 4px;
}

.product-description-box p::-webkit-scrollbar-track {
    background: transparent;
}

.product-description-box p::-webkit-scrollbar-thumb {
    background: var(--border-tertiary);
    border-radius: var(--radius-full);
}

/* Image loading state */
.product-detail-image {
    background: var(--bg-secondary);
}

/* Focus states for accessibility */
.product-action-buttons .btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Category badge pulse on hover */
.product-title-group .category-badge:hover {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.12), rgba(212, 160, 18, 0.08));
}

/* ============================================
   16b. COACH BLOG LINK
   ============================================ */
section.coach-blog-link {
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
}
a.coach-blog-card {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 1rem;
    background: var(--bg-card, #131316);
    border: 1px solid var(--border-secondary, #2a2a2f);
    border-radius: 10px;
    padding: 0.75rem;
    text-decoration: none !important;
    transition: border-color 0.2s, transform 0.2s;
    overflow: hidden;
}
a.coach-blog-card:hover {
    border-color: var(--primary, #dc2626);
    transform: translateY(-1px);
}
a.coach-blog-card > img {
    width: 70px !important;
    height: 52px !important;
    max-width: 70px !important;
    max-height: 52px !important;
    object-fit: contain !important;
    border-radius: 6px;
    background: var(--bg-tertiary, #1a1a1d);
    flex-shrink: 0;
    display: block;
}
.coach-blog-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
span.coach-blog-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent, #d4a012);
    font-weight: 600;
}
span.coach-blog-title {
    font-size: 0.85rem;
    color: var(--text-primary, #f5f5f5) !important;
    font-weight: 500;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
span.coach-blog-cta {
    font-size: 0.75rem;
    color: var(--primary, #dc2626) !important;
    font-weight: 600;
}
a.coach-blog-card:hover span.coach-blog-cta {
    color: var(--primary-light, #ef4444) !important;
}

/* Product description HTML content styling */
.product-description-content h2 {
    font-size: 1.3rem;
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}
.product-description-content h3 {
    font-size: 1.1rem;
    margin-top: var(--space-3);
    margin-bottom: var(--space-2);
    color: var(--accent-light, #eab308);
}
.product-description-content p {
    margin-bottom: var(--space-3);
    line-height: 1.7;
    color: var(--text-secondary);
}
.product-description-content ul,
.product-description-content ol {
    margin-bottom: var(--space-3);
    padding-left: var(--space-5);
}
.product-description-content li {
    margin-bottom: var(--space-1);
    color: var(--text-secondary);
    line-height: 1.6;
}
.product-description-content li strong {
    color: var(--text-primary);
}
.product-description-content a {
    color: var(--primary-light, #ef4444);
}

@media (max-width: 768px) {
    a.coach-blog-card {
        gap: 0.75rem;
        padding: 0.5rem;
    }
    a.coach-blog-card > img {
        width: 55px !important;
        height: 40px !important;
        max-width: 55px !important;
        max-height: 40px !important;
    }
    span.coach-blog-title {
        font-size: 0.8rem;
    }
}

/* ============================================
   17. FAQ SECTION
   ============================================ */
.product-faq {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
}

.product-faq h2 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-faq h2::before {
    content: '❓';
    font-size: 1rem;
}

.product-faq details {
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
    transition: all var(--transition-base);
}

.product-faq details:last-child {
    margin-bottom: 0;
}

.product-faq details[open] {
    border-color: var(--primary);
    background: rgba(220, 38, 38, 0.02);
    overflow: hidden;
}

.product-faq summary {
    padding: var(--space-3);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    transition: color var(--transition-base);
}

.product-faq summary::-webkit-details-marker {
    display: none;
}

.product-faq summary::after {
    content: '+';
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-tertiary);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.product-faq details[open] summary::after {
    content: '−';
    color: var(--primary);
}

.product-faq summary:hover {
    color: var(--primary);
}

.product-faq details p {
    padding: 0 var(--space-3) var(--space-3);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.product-faq .faq-answer {
    padding: 0 var(--space-3) var(--space-3);
}

.product-faq .faq-answer p {
    padding: 0;
    margin-bottom: var(--space-2);
}

.product-faq .faq-answer p:last-child {
    margin-bottom: 0;
}

.product-faq .faq-answer strong {
    color: var(--text-primary);
}

.product-faq .faq-answer ul,
.product-faq details ul {
    list-style: none;
    padding: 0;
    margin: var(--space-2) 0 0;
}

.product-faq .faq-answer ul li,
.product-faq details ul li {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 0.2rem 0 0.2rem 0;
}

.product-faq .faq-answer ul li::before,
.product-faq details ul li::before {
    content: '→ ';
    color: var(--accent, #d4a012);
}

.product-faq .faq-answer ul li strong,
.product-faq details ul li strong {
    color: var(--accent-light, #eab308);
}

.product-faq .faq-answer a {
    color: var(--primary-light, #ef4444);
    text-decoration: none;
}

.product-faq .faq-answer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .product-faq summary {
        font-size: 0.78rem;
        padding: var(--space-2) var(--space-3);
    }
    .product-faq .faq-answer {
        padding: 0 var(--space-2) var(--space-2);
    }
    .product-faq .faq-answer p,
    .product-faq .faq-answer ul li {
        font-size: 0.78rem;
    }
}

/* ============================================
   18. DESCRIPTION BOX - h2 support
   ============================================ */
.product-description-box h2 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-description-box h2::before {
    content: '📝';
    font-size: 1rem;
}

/* ============================================
   19. BREADCRUMB - ol support
   ============================================ */
ol.breadcrumb {
    list-style: none;
    padding: 0;
    margin: 0;
}

ol.breadcrumb li {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

/* ============================================
   20. CATEGORY COUNT
   ============================================ */
.category-count {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: var(--space-1);
}

/* ============================================
   21. CUSTOMER REVIEWS
   ============================================ */
.product-reviews {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
}

.product-reviews h2 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-reviews h2::before {
    content: '\2B50';
    font-size: 1rem;
}

/* Aggregate Rating Bar */
.reviews-aggregate {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    background: linear-gradient(135deg, var(--bg-card), rgba(212, 160, 18, 0.06));
    border: 1px solid var(--accent-dark, #a47d0c);
    border-radius: var(--radius-xl);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    box-shadow: 0 0 20px rgba(212, 160, 18, 0.05);
}

.aggregate-score {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-light, #eab308);
    line-height: 1;
    text-shadow: 0 0 20px rgba(234, 179, 8, 0.3);
}

.aggregate-detail {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.aggregate-stars {
    color: var(--accent-light, #eab308);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.aggregate-count {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Review Form */
.review-form {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.03), transparent);
    border: 1px solid var(--border-tertiary);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.review-form-header {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.review-form-header i {
    color: var(--primary-light, #ef4444);
}

.review-rating-input {
    margin-bottom: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.rating-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
}

.star-input {
    display: flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
    gap: 4px;
}

.star-input input {
    display: none;
}

.star-input label {
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--border-secondary, #2a2a2f);
    transition: color 0.15s, transform 0.15s, text-shadow 0.15s;
}

.star-input label:hover,
.star-input label:hover ~ label,
.star-input input:checked ~ label {
    color: var(--accent-light, #eab308);
    text-shadow: 0 0 12px rgba(234, 179, 8, 0.4);
}

.star-input label:hover {
    transform: scale(1.2);
}

.review-input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.8125rem;
    font-family: inherit;
    margin-bottom: var(--space-2);
    resize: vertical;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.review-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.review-input::placeholder {
    color: var(--text-tertiary);
}

.btn-review {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 700;
    cursor: pointer;
    transition: box-shadow 0.2s, transform 0.2s;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-review:hover {
    box-shadow: 0 6px 16px rgba(220, 38, 38, 0.4);
    transform: translateY(-1px);
}

/* Review Notice */
.review-notice {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    padding: var(--space-3);
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-tertiary);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.review-notice i {
    color: var(--accent-dark, #a47d0c);
    font-size: 0.9rem;
}

.review-notice a {
    color: var(--primary-light, #ef4444);
    text-decoration: none;
    font-weight: 600;
}

.review-notice a:hover {
    text-decoration: underline;
}

/* Reviews List */
.reviews-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.review-card {
    display: flex;
    gap: var(--space-3);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl);
    padding: var(--space-3);
    transition: border-color 0.2s, box-shadow 0.2s;
    background: rgba(0, 0, 0, 0.1);
}

.review-card:hover {
    border-color: var(--border-hover, #3a3a40);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

/* Avatar */
.review-card-left {
    flex-shrink: 0;
}

.review-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-weight: 800;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.25);
}

.review-card-body {
    flex: 1;
    min-width: 0;
}

.review-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
    flex-wrap: wrap;
    gap: 4px;
}

.review-author {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    color: var(--text-primary);
}

.verified-badge {
    font-size: 0.6875rem;
    color: var(--accent, #d4a012);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    background: rgba(212, 160, 18, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-full, 9999px);
    border: 1px solid rgba(212, 160, 18, 0.2);
}

.verified-badge i {
    font-size: 0.625rem;
}

.review-date {
    font-size: 0.6875rem;
    color: var(--text-tertiary);
}

.review-stars {
    color: var(--accent-light, #eab308);
    font-size: 0.75rem;
    margin-bottom: 6px;
    letter-spacing: 1px;
}

.review-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.review-comment {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* Empty State */
.reviews-empty-state {
    text-align: center;
    padding: var(--space-4) var(--space-3);
    color: var(--text-tertiary);
}

.reviews-empty-state i {
    font-size: 2rem;
    opacity: 0.25;
    margin-bottom: var(--space-2);
    display: block;
}

.reviews-empty-state p {
    font-size: 0.8125rem;
    margin: 0;
}

@media (max-width: 768px) {
    .reviews-aggregate {
        padding: var(--space-2) var(--space-3);
    }

    .aggregate-score {
        font-size: 1.5rem;
    }

    .review-card {
        flex-direction: column;
        gap: var(--space-2);
    }

    .review-card-left {
        display: none;
    }

    .review-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .review-rating-input {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-1);
    }

    .review-form {
        padding: var(--space-3);
    }
}

/* ============================================
   22. SIMILAR COURSES
   ============================================ */
.similar-courses {
    margin-top: var(--space-6);
}

.similar-courses h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.similar-courses h2::before {
    content: '\1F4DA';
    font-size: 1.1rem;
}

.similar-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
}

.similar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-tertiary);
    border-radius: var(--radius-xl, 12px);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
}

.similar-card:hover {
    border-color: var(--accent-dark, #a47d0c);
    box-shadow: 0 4px 20px rgba(212, 160, 18, 0.12), 0 0 30px rgba(212, 160, 18, 0.06);
    transform: translateY(-3px);
}

.similar-card-img {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-secondary, #0f0f12);
}

.similar-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.similar-card:hover .similar-card-img img {
    transform: scale(1.05);
}

.similar-card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-tertiary);
    opacity: 0.3;
}

.similar-card-info {
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
}

.similar-card-category {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--accent, #d4a012);
    font-weight: 700;
}

.similar-card-info h3 {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.similar-card-price {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary-light, #ef4444);
    margin-top: auto;
    padding-top: 4px;
}

@media (max-width: 768px) {
    .similar-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .similar-card-img {
        aspect-ratio: 4/3;
    }
}

@media (max-width: 480px) {
    .similar-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2);
    }

    .similar-card-info {
        padding: 8px;
    }

    .similar-card-info h3 {
        font-size: 0.7rem;
    }
}