/* Single Product Page CSS - Optimized Version */
/* Optimized for performance, maintainability, and code quality */
/* Version: 2.0.0 - Optimized */

/* === CSS Variables === */
:root {
    /* Color variables - unified system */
    --primary-color: #0A4C7F;
    --primary-hover: #083d5f;
    --dark-color: #1D2939;
    --light-color: #F9FAFB;
    --neutral-color: #667085;
    --white-color: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --green-600: #059669;
    --green-700: #047857;
    
    /* Layout variables - consistent units */
    --border-radius: 0.75rem;
    --border-radius-lg: 1rem;
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Shadow variables - unified system */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    
    /* Transition variables */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* === CSS Reset === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* === Base HTML Elements === */
body {
    font-family: "Inter", system-ui, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

table {
    border-collapse: collapse;
    width: 100%;
}

/* === WordPress Core Styles === */
.entry-content {
    line-height: 1.6;
    color: var(--dark-color);
}

.entry-content h1,
.entry-content h2,
.entry-content h3,
.entry-content h4,
.entry-content h5,
.entry-content h6 {
    color: var(--dark-color);
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.entry-content p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.entry-content ul,
.entry-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.entry-content li {
    margin-bottom: 0.5rem;
}

/* === Accessibility Support === */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.sr-only:focus {
    position: static !important;
    width: auto !important;
    height: auto !important;
    padding: .5rem !important;
    margin: 0 !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
    background: var(--primary-color) !important;
    color: white !important;
    text-decoration: none !important;
    border-radius: 3px !important;
}

/* === Parent Theme Style Override === */
body.footer-on-bottom.admin-bar #wrapper {
    min-height: auto !important;
    display: block !important;
}

body.footer-on-bottom #inner-wrap {
    flex: none !important;
    display: block !important;
}

body.single-product #wrapper {
    min-height: auto !important;
    display: block !important;
}

body.single-product #inner-wrap {
    flex: none !important;
    display: block !important;
}

body.single-product .product-page {
    position: relative !important;
    display: flex !important;
    flex-direction: column !important;
}

body.single-product {
    margin: 0 !important;
    padding: 0 !important;
    display: block !important;
    flex-direction: unset !important;
    min-height: unset !important;
}

/* === Product Page Layout === */
.product-page {
    position: relative;
    display: flex;
    flex-direction: column;
}

.product-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.product-breadcrumb {
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--neutral-color);
}

.product-breadcrumb a {
    color: var(--primary-color) !important;
    text-decoration: none !important;
}

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

.product-breadcrumb span {
    color: var(--dark-color);
    font-weight: 500;
}

.product-header-section {
    padding-top: 1rem;
    padding-bottom: 1rem;
    background-color: var(--gray-100);
}

.product-header {
    margin-bottom: 10px;
}

.product-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: var(--spacing-sm);
}

.product-main-section {
    padding: 10px 0;
    background-color: var(--white-color);
}

.product-content-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.product-gallery-section {
    flex: 0 0 60%;
}

.product-specs-section {
    flex: 0 0 40%;
}

/* === Product Gallery === */
.product-image-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: 10px;
    width: 100%;
    aspect-ratio: unset;
}

.main-image-wrapper {
    background-color: var(--white-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-product-image {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    display: block;
}

.main-product-image:hover {
    transform: scale(1.05);
}

.thumbnail-grid {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
    padding: 0 var(--spacing-sm);
}

/* === Product Thumbnail - Unified Styles === */
.product-thumb {
    cursor: pointer;
    border-radius: var(--spacing-sm);
    overflow: hidden;
    border: 0.1px solid var(--gray-200);
    transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
    width: calc(25% - var(--spacing-sm));
    min-width: 80px;
    max-width: 120px;
    aspect-ratio: 1 / 1;
    flex-shrink: 0;
    position: relative;
    background: none;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-thumb:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.product-thumb.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(10, 76, 127, 0.2);
}

.product-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 1 / 1;
}

/* === Product Specifications === */
.specs-container {
    background-color: var(--white-color);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.specs-header {
    padding: 10px 20px;
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.specs-title {
    font-size: 17px;
    font-weight: 600;
    color: #0073aa;
}

.specs-content {
    border-bottom: 1px solid var(--gray-200);
}

.spec-row {
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--gray-200);
}

.spec-row:last-child {
    border-bottom: none;
}

.spec-label {
    width: 33.333333%;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--neutral-color);
    margin: 0;
}

/* === Simplified Spec Value Styles === */
.spec-value {
    width: 66.666667%;
    font-family: "Inter", system-ui, sans-serif;
    font-size: 0.875rem;
    font-weight: normal;
    line-height: 1.4;
    color: var(--dark-color);
    text-align: right;
    margin: 0;
    padding: 0;
    display: block;
    box-sizing: border-box;
}

.trade-info {
    padding: 10px 20px;
    background-color: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.trade-title {
    font-size: 17px;
    font-weight: 700;
    color: #0073aa;
    margin-bottom: var(--spacing-sm);
}

.trade-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--neutral-color);
}

.trade-value {
    font-weight: 500;
}

.quick-actions {
    padding: 10px 20px;
    background-color: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

/* === Button Components === */
.btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    border: none;
    cursor: pointer;
    background-color: var(--primary-color);
    color: var(--white-color);
    font-family: inherit;
    line-height: 1.4;
    text-align: center;
    white-space: nowrap;
    user-select: none;
}

.btn:hover {
    background-color: var(--primary-hover);
    color: var(--white-color);
    text-decoration: none;
}

.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-success {
    background-color: var(--green-600);
    color: var(--white-color);
}

.btn-success:hover {
    background-color: var(--green-700);
    color: var(--white-color);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white-color);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: var(--white-color);
}

.btn i {
    margin-right: var(--spacing-xs);
}

/* === Content Layout === */
.content-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--white-color);
}

.content-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.content-main {
    flex: 0 0 65%;
}

.content-sidebar {
    flex: 0 0 35%;
}

.content-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
}

.content-main .content-card {
    padding: var(--spacing-md) var(--spacing-sm);
}

/* === Utility Styles === */
.image-placeholder-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 24rem;
}

.image-placeholder-content {
    text-align: center;
    color: var(--neutral-color);
}

.image-placeholder-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.specs-empty-content {
    padding: var(--spacing-md);
    text-align: center;
    color: var(--neutral-color);
}

.page-divider {
    border-bottom: 0.5px solid var(--gray-200);
}

.editor-content-wrapper {
    max-width: none;
}

/* === Definition List Styling === */
.trade-details {
    margin: 0;
    padding: 0;
}

.trade-item dt {
    font-weight: 500;
    margin: 0;
}

.trade-item dd {
    margin: 0;
    color: var(--dark-color);
}

/* === Contact Details === */
.contact-details {
    margin: 0;
    padding: 0;
    font-style: normal;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-color);
    font-size: 15px;
}

.contact-item i {
    margin-top: 0.125rem;
    margin-right: var(--spacing-sm);
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item time {
    color: var(--neutral-color);
}

/* === Sidebar Components === */
.sticky-sidebar {
    position: sticky;
    top: 6rem;
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    border: 1px solid var(--gray-100);
}

.factory-badge {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: rgba(10, 76, 127, 0.05);
    border-radius: var(--spacing-sm);
    border: 1px solid rgba(10, 76, 127, 0.1);
}

.factory-badge-header {
    display: flex;
    align-items: center;
    color: #0073AA;
    margin-bottom: var(--spacing-xs);
}

.factory-badge-header i {
    margin-right: var(--spacing-xs);
}

.factory-badge-title {
    font-size: 17px;
    font-weight: 600;
    color: #0073AA;
}

.factory-badge-text {
    font-size: 15px;
    color: var(--neutral-color);
}

.company-intro {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.company-logo {
    margin-bottom: var(--spacing-md);
}

.logo-image {
    width: 200px;
    height: auto;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--spacing-sm);
    overflow: hidden;
    background-color: var(--white-color);
}

.company-logo-img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.company-description {
    color: var(--neutral-color);
    font-size: 15px;
    line-height: 1.7;
    padding: var(--spacing-md);
    text-align: left;
}

.contact-section {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-100);
    padding: var(--spacing-md);
}

.contact-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    color: #0073AA;
}

.contact-title i {
    margin-right: var(--spacing-xs);
}

.social-links {
    margin-top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 2.5rem;
    height: 2.5rem;
    background-color: rgba(10, 76, 127, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    text-decoration: none;
    transition: background-color var(--transition-normal);
}

.social-link:hover {
    background-color: rgba(10, 76, 127, 0.2);
    color: var(--primary-color);
}

.support-section {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: rgba(10, 76, 127, 0.05);
    border-radius: var(--spacing-sm);
    border: 1px solid rgba(10, 76, 127, 0.1);
}

.support-title {
    font-size: 17px;
    font-weight: 700;
    color: #0073AA;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
}

.support-title i {
    margin-right: var(--spacing-xs);
}

.support-text {
    font-size: 15px;
    color: var(--neutral-color);
    margin-bottom: var(--spacing-sm);
}

.support-link {
    font-size: 15px;
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.support-link:hover {
    color: var(--primary-color);
}

.support-link i {
    margin-left: var(--spacing-xs);
}

/* === Responsive Design === */
@media (min-width: 1024px) {
    .product-content-grid {
        flex-direction: row;
    }
    
    .content-grid {
        flex-direction: row;
    }
}

@media (max-width: 1440px) {
    .product-container {
        max-width: 100%;
        margin: 0 auto;
    }
}

/* === Tablet Optimization (768px - 1023px) === */
@media (min-width: 768px) and (max-width: 1023px) {
    .product-gallery-section {
        flex: 0 0 50%;
    }
    
    .product-specs-section {
        flex: 0 0 50%;
    }
    
    .content-main {
        flex: 0 0 60%;
    }
    
    .content-sidebar {
        flex: 0 0 40%;
    }
    
    .product-title {
        font-size: 1.75rem;
    }
    
    .specs-container {
        min-height: 400px;
    }
    
    .spec-row {
        padding: 8px 15px;
        flex-wrap: wrap;
    }
    
    .spec-label {
        width: 35%;
        font-size: 0.8rem;
        line-height: 1.4;
    }
    
    .spec-value {
        width: 65%;
        font-size: 0.8rem;
        line-height: 1.4;
        word-break: break-word;
        text-align: right;
    }
    
    .trade-info {
        padding: 8px 15px;
    }
    
    .trade-item {
        font-size: 0.8rem;
        line-height: 1.4;
        margin-bottom: 0.25rem;
    }
    
    .quick-actions {
        padding: 8px 15px;
    }
    
    .btn {
        padding: 0.6rem 0.8rem;
        font-size: 0.8rem;
    }
}

/* === Mobile Optimization (≤768px) === */
@media (max-width: 768px) {
    .product-container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .product-title {
        font-size: 1.5rem;
    }
    
    .product-main-section {
        padding: 8px 0;
    }
    
    .product-content-grid {
        gap: var(--spacing-lg);
    }
    
    .content-grid {
        gap: var(--spacing-lg);
    }
    
    .thumbnail-grid {
        gap: var(--spacing-xs);
        overflow-x: auto;
        padding-bottom: var(--spacing-xs);
        padding: 0 var(--spacing-xs);
    }
    
    .product-thumb {
        flex-shrink: 0;
        width: 4rem;
        height: 4rem;
        min-width: 4rem;
        max-width: 4rem;
        min-height: 4rem;
        max-height: 4rem;
        aspect-ratio: 1 / 1;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .main-product-image {
        max-height: 350px;
    }
    
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }
    
    .spec-row {
        flex-direction: row;
        align-items: center;
        gap: 0.5rem;
    }
    
    .spec-label {
        width: 40%;
        font-weight: 600;
        color: var(--primary-color);
        font-size: 0.8rem;
        flex-shrink: 0;
    }
    
    .spec-value {
        width: 60%;
        font-size: 0.8rem;
        line-height: 1.4;
        word-break: break-word;
        text-align: right;
    }
}

/* === Small Screen Phone Optimization (≤480px) === */
@media (max-width: 480px) {
    .product-container {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    .product-title {
        font-size: 1.25rem;
    }
    
    .product-main-section {
        padding: 6px 0;
    }
    
    .product-content-grid {
        gap: var(--spacing-md);
    }
    
    .content-grid {
        gap: var(--spacing-md);
    }
    
    .main-product-image {
        max-height: 250px;
    }
    
    .product-thumb {
        width: 3.5rem;
    }
    
    .btn {
        padding: 0.6rem 0.8rem;
        font-size: 0.75rem;
    }
    
    .specs-header, .trade-info, .quick-actions {
        padding: 8px 12px;
    }
    
    .spec-row {
        padding: 8px 12px;
        flex-direction: row;
        align-items: center;
        gap: 0.4rem;
    }
    
    .spec-label {
        width: 35%;
        font-size: 0.75rem;
        flex-shrink: 0;
    }
    
    .spec-value {
        width: 65%;
        font-size: 0.75rem;
        line-height: 1.4;
        word-break: break-word;
        text-align: right;
    }
    
    .content-card {
        padding: var(--spacing-md) var(--spacing-sm);
        margin-bottom: var(--spacing-lg);
    }
    
    .content-main .content-card {
        padding: var(--spacing-sm) var(--spacing-xs);
    }
    
    .sticky-sidebar {
        padding: var(--spacing-md);
    }
    
    .logo-image {
        width: 150px;
        height: auto;
    }
    
    .social-link {
        width: 2rem;
        height: 2rem;
    }
}