/* ==========================================================================
   Knowledge Hub Styles
   ========================================================================== */

/* Hero Section */
.knowledge-hero {
    background:
        linear-gradient(135deg, rgba(255, 124, 30, 0.08) 0%, transparent 40%, rgba(255, 124, 30, 0.12) 100%),
        linear-gradient(45deg, #1a1a1a 0%, #2a2a2a 25%, #1f1f1f 50%, #3d2415 75%, #2d1f1a 100%);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.knowledge-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 60%;
    height: 150%;
    background: radial-gradient(ellipse at center, rgba(255, 124, 30, 0.2) 0%, rgba(255, 124, 30, 0.1) 30%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    opacity: 0.8;
}

.knowledge-hero__content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.knowledge-hero__label {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

.knowledge-hero__title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.knowledge-hero__subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

/* Search Box */
.knowledge-search {
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

.knowledge-search__icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: #999;
    pointer-events: none;
}

.knowledge-search__input {
    width: 100%;
    padding: 16px 20px 16px 52px;
    font-size: 16px;
    font-family: var(--font-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    transition: all var(--transition-speed);
}

.knowledge-search__input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.knowledge-search__input:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: rgba(255, 255, 255, 0.15);
}

/* Category Filters */
.knowledge-filters {
    background-color: var(--color-white);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 80px;
    z-index: 90;
}

.filter-tabs {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-primary);
    color: var(--color-text-light);
    background: none;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.filter-tab:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-tab.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

/* Articles Section */
.knowledge-articles {
    padding: var(--spacing-2xl) 0;
    background-color: #f8f8f8;
    min-height: 400px;
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Article Card */
.article-card {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.article-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.article-card__image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background-color: #eee;
}

.article-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed);
}

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

.article-card__content {
    padding: var(--spacing-md);
}

.article-card__title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    transition: color var(--transition-speed);
}

.article-card:hover .article-card__title {
    color: var(--color-primary);
}

.article-card__excerpt {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #999;
}

.article-author {
    font-weight: 500;
}

/* Category Badge */
.article-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: var(--spacing-sm);
}

.article-category--aeo {
    background-color: rgba(255, 124, 30, 0.1);
    color: #b85400;
}

.article-category--crm {
    background-color: rgba(37, 211, 102, 0.1);
    color: #1a8a47;
}

.article-category--email {
    background-color: rgba(33, 150, 243, 0.1);
    color: #1565c0;
}

.article-category--growth {
    background-color: rgba(156, 39, 176, 0.1);
    color: #7b1fa2;
}

/* Featured Article */
.featured-article {
    margin-bottom: var(--spacing-xl);
}

.featured-article__link {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-speed);
}

.featured-article__link:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.featured-article__image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.featured-article__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed);
}

.featured-article__link:hover .featured-article__image img {
    transform: scale(1.03);
}

.featured-article__content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-article__title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    transition: color var(--transition-speed);
}

.featured-article__link:hover .featured-article__title {
    color: var(--color-primary);
}

.featured-article__excerpt {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.featured-article__meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 14px;
    color: #999;
}

/* Empty State */
.articles-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
}

.articles-empty__icon {
    color: #ccc;
    margin-bottom: var(--spacing-md);
}

.articles-empty__title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.articles-empty__text {
    font-size: 16px;
    color: var(--color-text-light);
    max-width: 400px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.6;
}

/* No Results */
.articles-no-results {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-light);
}

/* Knowledge CTA */
.knowledge-cta {
    background:
        linear-gradient(135deg, rgba(255, 124, 30, 0.08) 0%, transparent 40%, rgba(255, 124, 30, 0.12) 100%),
        linear-gradient(45deg, #1a1a1a 0%, #2a2a2a 25%, #1f1f1f 50%, #3d2415 75%, #2d1f1a 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.knowledge-cta__content {
    max-width: 600px;
    margin: 0 auto;
}

.knowledge-cta h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.knowledge-cta p {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================================================
   Article Page Styles - Enhanced Design
   ========================================================================== */

/* Breadcrumbs */
.article-breadcrumbs {
    padding: var(--spacing-md) 0;
    background-color: #f8f8f8;
    border-bottom: 1px solid var(--color-border);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text-light);
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumbs a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.breadcrumbs a:hover {
    color: var(--color-primary);
}

.breadcrumbs__separator {
    color: #ccc;
}

.breadcrumbs__current {
    color: var(--color-text);
    font-weight: 500;
}

/* Article Header - Redesigned */
.article-header {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    background: linear-gradient(180deg, #f8f8f8 0%, var(--color-white) 100%);
    position: relative;
}

.article-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, #ff9a5a 50%, var(--color-primary) 100%);
}

.article-header__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.article-header__title {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    letter-spacing: -0.5px;
}

.article-header__excerpt {
    font-size: 17px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Author Meta Card - Header Version */
.article-header__meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.article-meta__author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.article-meta__avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-meta__author-info {
    text-align: left;
}

.article-meta__author-name {
    font-weight: 600;
    color: var(--color-text);
    font-size: 15px;
}

.article-meta__author-title {
    font-size: 13px;
    color: var(--color-text-light);
}

.article-meta__details {
    display: flex;
    gap: var(--spacing-md);
    font-size: 14px;
    color: var(--color-text-light);
}

.article-meta__date,
.article-meta__read-time {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta__date svg,
.article-meta__read-time svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

/* Article Content */
.article-content {
    padding: var(--spacing-lg) 0 var(--spacing-xl);
    background-color: var(--color-white);
}

/* Article Layout - Two Column with Sidebar */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: var(--spacing-xl);
    align-items: start;
    max-width: 1100px;
    margin: 0 auto;
}

.article-body {
    max-width: 760px;
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
}

/* Sticky Sidebar TOC */
.article-sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
}

.article-sidebar__toc {
    background: linear-gradient(135deg, #f8f8f8 0%, #fff 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.article-sidebar__title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0 0 var(--spacing-md);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-sidebar__title svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
}

.article-sidebar__list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-lg);
    counter-reset: sidebar-counter;
}

.article-sidebar__list li {
    margin: 0;
    padding: 0;
    counter-increment: sidebar-counter;
}

.article-sidebar__link {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 8px 10px;
    margin: 0 calc(-1 * var(--spacing-sm));
    font-size: 13px;
    line-height: 1.4;
    color: var(--color-text-light);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-speed);
    border-left: 2px solid transparent;
}

.article-sidebar__link::before {
    content: counter(sidebar-counter) ".";
    color: var(--color-primary);
    font-weight: 600;
    font-size: 12px;
    min-width: 18px;
    flex-shrink: 0;
}

.article-sidebar__link:hover {
    background-color: rgba(255, 124, 30, 0.06);
    color: var(--color-text);
}

.article-sidebar__link.active {
    background-color: rgba(255, 124, 30, 0.1);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 500;
}

.article-sidebar__cta {
    display: block;
    text-align: center;
    padding: 12px var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, #e86a10 100%);
    color: var(--color-white);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-speed);
    box-shadow: 0 2px 8px rgba(255, 124, 30, 0.3);
}

.article-sidebar__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 124, 30, 0.4);
}

/* Hide sidebar on smaller screens */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
        max-width: 760px;
    }

    .article-sidebar {
        display: none;
    }
}

/* Section Styling with Accent */
.article-body section {
    padding-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.article-body section:first-of-type {
    padding-top: 0;
}

.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 12px;
    color: var(--color-text);
    position: relative;
    padding-bottom: 6px;
}

.article-body h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary) 0%, rgba(255, 124, 30, 0.3) 100%);
    border-radius: 2px;
}

.article-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.article-body h4 {
    font-size: 16px;
    font-weight: 600;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.article-body p {
    margin-bottom: 10px;
}

.article-body ul,
.article-body ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

.article-body li {
    margin-bottom: 4px;
    padding-left: 4px;
}

.article-body li::marker {
    color: var(--color-primary);
}

/* Blockquote Styling */
.article-body blockquote {
    border-left: 3px solid var(--color-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-md) 0;
    background: linear-gradient(90deg, rgba(255, 124, 30, 0.05) 0%, transparent 100%);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body blockquote p {
    font-style: italic;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.article-body blockquote p:last-child {
    margin-bottom: 0;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) 0;
}

.article-body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.article-body a:hover {
    text-decoration: none;
}

.article-body a.btn {
    text-decoration: none;
}

/* Comparison Table */
.comparison-table {
    margin: var(--spacing-lg) 0;
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
    background-color: #1a1a1a;
    color: var(--color-white);
    font-weight: 600;
    font-size: 14px;
}

.comparison-table th:first-child {
    border-radius: var(--radius-sm) 0 0 0;
}

.comparison-table th:last-child {
    border-radius: 0 var(--radius-sm) 0 0;
}

.comparison-table td {
    background-color: var(--color-white);
}

.comparison-table tr:nth-child(even) td {
    background-color: #f8f8f8;
}

.comparison-table tr:hover td {
    background-color: rgba(255, 124, 30, 0.05);
}

/* Table of Contents - Enhanced */
.article-toc {
    background: linear-gradient(135deg, #f8f8f8 0%, #fff 100%);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: var(--spacing-lg) var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.article-toc__title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-toc__title::before {
    content: '';
    width: 20px;
    height: 20px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ff7c1e' stroke-width='2'%3E%3Cpath d='M4 6h16M4 12h16M4 18h10'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.article-toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs) var(--spacing-lg);
}

.article-toc__list li {
    margin: 0;
    padding: 0;
    counter-increment: toc-counter;
}

.article-toc__list a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 14px;
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    padding: 6px 0;
    transition: all var(--transition-speed);
    border-bottom: 1px solid transparent;
}

.article-toc__list a::before {
    content: counter(toc-counter) ".";
    color: var(--color-primary);
    font-weight: 600;
    font-size: 13px;
    min-width: 20px;
}

.article-toc__list a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}

/* Article CTA Box - Enhanced */
.article-cta-box {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1f1a 50%, #1a1a1a 100%);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.article-cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary) 50%, transparent 100%);
}

.article-cta-box::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 50%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(255, 124, 30, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.article-cta-box h3 {
    color: var(--color-white);
    font-size: 20px;
    margin-bottom: var(--spacing-xs);
    position: relative;
    z-index: 1;
}

.article-cta-box p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-md);
    font-size: 14px;
    position: relative;
    z-index: 1;
}

.article-cta-box .btn {
    position: relative;
    z-index: 1;
}

.article-cta-box .btn--primary {
    background-color: #b85400;
    color: #fff;
    border-color: #b85400;
}

.article-cta-box .btn--primary:hover {
    background-color: #994700;
    border-color: #994700;
    color: #fff;
}

/* FAQ Section - Enhanced */
.faq-list {
    margin-top: var(--spacing-lg);
}

.faq-item {
    background-color: #f8f8f8;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-left: 3px solid var(--color-primary);
    transition: all var(--transition-speed);
}

.faq-item:hover {
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.faq-item h3 {
    font-size: 17px;
    font-weight: 600;
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--color-text);
    line-height: 1.4;
}

.faq-item p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-light);
    margin: 0;
}

/* Author Box - Enhanced with Profile Pic */
.article-author-box {
    background: linear-gradient(135deg, #f8f8f8 0%, #fff 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0 var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.article-author-box__avatar {
    flex-shrink: 0;
}

.article-author-box__avatar img {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-author-box__content {
    flex: 1;
}

.article-author-box__label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.article-author-box__name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 2px;
    color: var(--color-text);
}

.article-author-box__title {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.article-author-box__bio {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.article-author-box__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    transition: all var(--transition-speed);
}

.article-author-box__link:hover {
    gap: 10px;
}

.article-author-box__link::after {
    content: '→';
}

/* Key Takeaway Box */
.article-key-takeaway {
    background: linear-gradient(135deg, rgba(255, 124, 30, 0.08) 0%, rgba(255, 124, 30, 0.02) 100%);
    border: 1px solid rgba(255, 124, 30, 0.2);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.article-key-takeaway__title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-key-takeaway__title::before {
    content: '💡';
}

.article-key-takeaway p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

/* Section Divider */
.article-section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-lg) 0;
    gap: var(--spacing-sm);
}

.article-section-divider::before,
.article-section-divider::after {
    content: '';
    height: 1px;
    flex: 1;
    background: linear-gradient(90deg, transparent 0%, var(--color-border) 50%, transparent 100%);
}

.article-section-divider span {
    color: var(--color-primary);
    font-size: 20px;
}

/* Article Updated Notice */
.article-updated {
    text-align: center;
    font-size: 14px;
    color: var(--color-text-light);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

/* Related Articles */
.related-articles {
    padding: var(--spacing-2xl) 0;
    background-color: #f8f8f8;
}

.related-articles__title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.related-articles__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* ==========================================================================
   Article FAQ Section (Accordion Style)
   ========================================================================== */

.article-faq-section {
    background-color: #f8f8f8;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: var(--radius-lg);
}

.article-faq-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.article-faq-section h2::after {
    left: 50%;
    transform: translateX(-50%);
}

/* Accordion Styles */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-accordion__item {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    overflow: hidden;
    transition: all var(--transition-speed);
}

.faq-accordion__item:hover {
    border-color: rgba(255, 124, 30, 0.3);
}

.faq-accordion__item.active {
    border-color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(255, 124, 30, 0.1);
}

.faq-accordion__trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 16px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-primary);
    transition: all var(--transition-speed);
}

.faq-accordion__trigger:hover {
    background-color: rgba(255, 124, 30, 0.03);
}

.faq-accordion__question {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    flex: 1;
}

.faq-accordion__icon {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: transform var(--transition-speed);
}

.faq-accordion__item.active .faq-accordion__icon {
    transform: rotate(180deg);
}

.faq-accordion__content {
    display: none;
    padding: 0 16px 12px;
}

.faq-accordion__item.active .faq-accordion__content {
    display: block;
}

.faq-accordion__content p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-light);
    margin: 0;
}

@media (max-width: 768px) {
    .article-faq-section {
        margin: var(--spacing-xl) calc(-1 * var(--spacing-md));
        padding: var(--spacing-xl) var(--spacing-md);
        border-radius: 0;
    }

    .faq-accordion__trigger {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .faq-accordion__question {
        font-size: 15px;
    }

    .faq-accordion__content {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }

    .faq-accordion__content p {
        font-size: 14px;
    }
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */

@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .featured-article__link {
        grid-template-columns: 1fr;
    }

    .related-articles__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .knowledge-hero {
        padding: var(--spacing-2xl) 0;
    }

    .knowledge-hero__title {
        font-size: 36px;
    }

    .knowledge-filters {
        top: 70px;
        padding: var(--spacing-md) 0;
    }

    .filter-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
        -webkit-overflow-scrolling: touch;
    }

    .filter-tab {
        flex-shrink: 0;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .related-articles__grid {
        grid-template-columns: 1fr;
    }

    .article-header {
        padding: var(--spacing-2xl) 0 var(--spacing-xl);
    }

    .article-header__title {
        font-size: 32px;
    }

    .article-header__excerpt {
        font-size: 18px;
    }

    .article-header__meta {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .article-body {
        font-size: 16px;
    }

    .article-body h2 {
        font-size: 24px;
    }

    .article-body h3 {
        font-size: 20px;
    }

    /* TOC single column on tablet */
    .article-toc__list {
        grid-template-columns: 1fr;
    }

    .article-toc {
        padding: var(--spacing-md) var(--spacing-lg);
    }

    /* Author box stack on tablet */
    .article-author-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .article-author-box__avatar img {
        width: 80px;
        height: 80px;
    }

    /* CTA boxes padding */
    .article-cta-box {
        padding: var(--spacing-lg);
    }

    .article-cta-box h3 {
        font-size: 22px;
    }

    /* FAQ items */
    .faq-item {
        padding: var(--spacing-md);
    }

    /* Comparison table */
    .comparison-table {
        font-size: 14px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .knowledge-hero__title {
        font-size: 28px;
    }

    .knowledge-hero__subtitle {
        font-size: 16px;
    }

    .knowledge-cta h2 {
        font-size: 28px;
    }

    .article-header__title {
        font-size: 26px;
        line-height: 1.25;
    }

    .article-header__excerpt {
        font-size: 16px;
    }

    .article-body h2 {
        font-size: 22px;
    }

    .article-body h3 {
        font-size: 18px;
    }

    .article-author-box__name {
        font-size: 20px;
    }

    .article-author-box__bio {
        font-size: 14px;
    }

    .article-key-takeaway {
        padding: var(--spacing-md);
    }

    .faq-item h3 {
        font-size: 16px;
    }

    .faq-item p {
        font-size: 14px;
    }
}

/* ==========================================================================
   FAQ Search & Pagination (Article Accordion)
   ========================================================================== */

/* FAQ Search */
.article-faq-section .faq-search {
    max-width: 360px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-speed);
}

.article-faq-section .faq-search:focus-within {
    border-color: var(--color-primary);
}

.article-faq-section .faq-search__wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.article-faq-section .faq-search__icon {
    width: 18px;
    height: 18px;
    color: #999;
    flex-shrink: 0;
}

.article-faq-section .faq-search__input {
    flex: 1;
    border: none;
    outline: none;
    font-family: var(--font-primary);
    font-size: 14px;
    color: var(--color-text);
    background: transparent;
}

.article-faq-section .faq-search__input::placeholder {
    color: #999;
}

.article-faq-section .faq-search__results {
    text-align: center;
    font-size: 13px;
    color: #666;
    margin-top: var(--spacing-xs);
    min-height: 18px;
}

/* FAQ Pagination */
.article-faq-section .faq-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.article-faq-section .faq-pagination__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.article-faq-section .faq-pagination__arrow svg {
    width: 16px;
    height: 16px;
    color: var(--color-text);
}

.article-faq-section .faq-pagination__arrow:hover:not(:disabled) {
    border-color: var(--color-primary);
    background: rgba(255, 124, 30, 0.05);
}

.article-faq-section .faq-pagination__arrow:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.article-faq-section .faq-pagination__info {
    font-size: 13px;
    color: #666;
    min-width: 60px;
    text-align: center;
}