/* Main Layout - Two Columns */
        .main-layout {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px 80px;
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 3rem;
            align-items: start;
        }

        /* Left Column - Article Content */
        .left-column {
            min-width: 0;
        }

        .article-header {
            margin-bottom: 2rem;
        }

        .article-category-tag {
            display: inline-block;
            padding: 0.3rem 0.9rem;
            background-color: #ebf8ff;
            color: var(--secondary-color);
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
        }

        .article-title {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin-bottom: 1.25rem;
            font-weight: 700;
            line-height: 1.3;
        }

        .article-meta-bar {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            padding-bottom: 1.5rem;
            border-bottom: 2px solid var(--border-color);
            margin-bottom: 2rem;
        }

        .article-date {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            color: #718096;
            font-weight: 500;
        }

        .article-date svg {
            width: 16px;
            height: 16px;
        }

        .article-author {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            color: #718096;
            font-weight: 500;
        }

        .article-author svg {
            width: 16px;
            height: 16px;
        }

        .article-reading-time {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.9rem;
            color: #a0aec0;
        }

        .article-reading-time svg {
            width: 16px;
            height: 16px;
        }

        /* Article Featured Image */
        .article-featured-image {
            width: 100%;
            height: 400px;
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e0 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 2rem;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .article-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-image-placeholder {
            color: #a0aec0;
            font-size: 1.1rem;
            font-weight: 500;
        }

        /* Article Body */
        .article-body {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-color);
        }

        .article-body p {
            margin-bottom: 1.5rem;
        }

        .article-body h2 {
            font-size: 1.6rem;
            color: var(--primary-color);
            margin: 2.5rem 0 1rem;
            font-weight: 600;
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.3rem;
            color: var(--primary-color);
            margin: 2rem 0 0.75rem;
            font-weight: 600;
            line-height: 1.3;
        }

        .article-body ul,
        .article-body ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .article-body li {
            margin-bottom: 0.6rem;
            line-height: 1.7;
        }

        .article-body strong {
            color: var(--primary-color);
            font-weight: 600;
        }

        .article-body blockquote {
            border-left: 4px solid var(--secondary-color);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: var(--light-bg);
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: #4a5568;
        }

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

        /* Article Inline Image */
        .article-inline-image {
            width: 100%;
            height: 300px;
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e0 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 2rem 0;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .article-inline-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-inline-image .caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 0.75rem 1rem;
            background: rgba(0,0,0,0.6);
            color: white;
            font-size: 0.85rem;
        }

        /* Article Tags */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 2px solid var(--border-color);
        }

        .article-tag {
            display: inline-block;
            padding: 0.4rem 0.9rem;
            background-color: var(--light-bg);
            color: var(--text-color);
            font-size: 0.85rem;
            font-weight: 500;
            border-radius: 20px;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
        }

        .article-tag:hover {
            background-color: var(--secondary-color);
            color: var(--white);
            border-color: var(--secondary-color);
        }

        /* Article Navigation (Prev/Next) */
        .article-navigation {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid var(--border-color);
        }

        .article-nav-link {
            display: flex;
            flex-direction: column;
            padding: 1.25rem;
            background: var(--white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
            box-shadow: var(--shadow);
        }

        .article-nav-link:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--secondary-color);
        }

        .article-nav-link:hover .article-nav-title {
            color: var(--secondary-color);
        }

        .article-nav-label {
            font-size: 0.8rem;
            color: #a0aec0;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.5rem;
        }

        .article-nav-title {
            font-size: 1rem;
            color: var(--primary-color);
            font-weight: 600;
            line-height: 1.4;
            transition: color 0.3s ease;
        }

        .article-nav-next {
            text-align: right;
            align-items: flex-end;
        }

        /* Right Column - Sticky Sidebar */
        .right-column {
            position: sticky;
            top: 90px;
            align-self: start;
        }

        .sidebar-section {
            background: var(--white);
            border-radius: 12px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            margin-bottom: 2rem;
        }

        .sidebar-title {
            font-size: 1.15rem;
            color: var(--primary-color);
            margin-bottom: 1.25rem;
            font-weight: 600;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid var(--border-color);
        }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .sidebar-item {
            display: flex;
            gap: 0.75rem;
            text-decoration: none;
            color: inherit;
            padding: 0.5rem 0;
            border-bottom: 1px solid #edf2f7;
            transition: transform 0.2s ease;
        }

        .sidebar-item:last-child {
            border-bottom: none;
        }

        .sidebar-item:hover {
            transform: translateX(4px);
        }

        .sidebar-item:hover .sidebar-item-title {
            color: var(--secondary-color);
        }

        .sidebar-thumb {
            width: 60px;
            height: 60px;
            min-width: 60px;
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e0 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: #a0aec0;
            overflow: hidden;
        }

        .sidebar-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px;
        }

        .sidebar-item-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .sidebar-item-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-color);
            line-height: 1.4;
            transition: color 0.3s ease;
        }

        .sidebar-item-desc {
            font-size: 0.8rem;
            color: #a0aec0;
            margin-top: 0.25rem;
            line-height: 1.4;
        }

        /* Article sidebar items */
        .sidebar-article {
            display: block;
            text-decoration: none;
            color: inherit;
            padding: 0.75rem 0;
            border-bottom: 1px solid #edf2f7;
            transition: transform 0.2s ease;
        }

        .sidebar-article:last-child {
            border-bottom: none;
        }

        .sidebar-article:hover {
            transform: translateX(4px);
        }

        .sidebar-article:hover .sidebar-article-title {
            color: var(--secondary-color);
        }

        .sidebar-article-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-color);
            line-height: 1.4;
            transition: color 0.3s ease;
        }

        .sidebar-article-excerpt {
            font-size: 0.8rem;
            color: #a0aec0;
            margin-top: 0.35rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }



        /* Responsive Design */
        @media (max-width: 992px) {
            .main-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .right-column {
                position: static;
                order: -1;
            }

            .sidebar-section {
                margin-bottom: 1.5rem;
            }

            .article-featured-image {
                height: 300px;
            }
        }

        @media (max-width: 768px) {


            .article-title {
                font-size: 1.6rem;
            }

            .article-featured-image {
                height: 240px;
            }

            .article-body h2 {
                font-size: 1.4rem;
            }

            .article-body h3 {
                font-size: 1.15rem;
            }

            .article-navigation {
                grid-template-columns: 1fr;
            }

            .article-nav-next {
                text-align: left;
                align-items: flex-start;
            }
        }

        @media (max-width: 480px) {

            .article-title {
                font-size: 1.4rem;
            }

            .article-meta-bar {
                gap: 1rem;
            }

            .article-featured-image {
                height: 200px;
            }

            .article-body {
                font-size: 1rem;
            }

            .article-inline-image {
                height: 220px;
            }
        }