:root {
            --bg-primary: #ffffff;
            --bg-secondary: #f8f9fa;
            --bg-tertiary: #e9ecef;
            --text-primary: #212529;
            --text-secondary: #6c757d;
            --text-tertiary: #adb5bd;
            --accent: #0066ff;
            --accent-hover: #0052cc;
            --border: #dee2e6;
            --shadow: rgba(0, 0, 0, 0.1);
            --modal-bg: rgba(0, 0, 0, 0.5);
            --card-bg: #ffffff;
            --tag-bg: #f1f3f5;
            --tag-text: #495057;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        [data-theme="dark"] {
            --bg-primary: #0a0b0d;
            --bg-secondary: #141517;
            --bg-tertiary: #1e1f23;
            --text-primary: #f8f9fa;
            --text-secondary: #adb5bd;
            --text-tertiary: #6c757d;
            --accent: #4dabf7;
            --accent-hover: #339af0;
            --border: #343a40;
            --shadow: rgba(0, 0, 0, 0.3);
            --modal-bg: rgba(0, 0, 0, 0.8);
            --card-bg: #141517;
            --tag-bg: #2d2f33;
            --tag-text: #adb5bd;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            transition: var(--transition);
            overflow-x: hidden;
        }

        /* Header */
        .header {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
            background: rgba(var(--bg-secondary), 0.9);
        }

        .header-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 2rem;
            font-weight: 900;
            letter-spacing: -0.05em;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            cursor: pointer;
            transition: transform 0.3s ease;
        }

        .logo:hover {
            transform: scale(1.05);
        }

        .header-controls {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .theme-toggle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            border: 2px solid var(--border);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: 1.2rem;
        }

        .theme-toggle:hover {
            background: var(--accent);
            color: white;
            transform: rotate(180deg);
        }

        /* Tags Bar */
        .tags-bar {
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border);
            padding: 1rem 2rem;
            max-width: 1400px;
            margin: 0 auto;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .tags-bar::-webkit-scrollbar {
            height: 6px;
        }

        .tags-bar::-webkit-scrollbar-track {
            background: transparent;
        }

        .tags-bar::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .tags-container {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .tag {
            padding: 0.5rem 1rem;
            background: var(--tag-bg);
            color: var(--tag-text);
            border-radius: 2rem;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            font-weight: 500;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .tag::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--accent);
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            z-index: -1;
        }

        .tag:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px var(--shadow);
        }

        .tag.active {
            background: var(--accent);
            color: white;
            border-color: var(--accent);
        }

        .tag.frequent {
            font-size: 1.1rem;
            font-weight: 600;
            padding: 0.6rem 1.2rem;
        }

        .tag.normal {
            font-size: 1rem;
            font-weight: 500;
        }

        .tag.rare {
            font-size: 0.9rem;
            font-weight: 400;
            opacity: 0.8;
        }
        .tag.none {
            font-size: 0.3rem;
            font-weight: 100;
            opacity: 0.6;
        }

        /* Main Content */
        .main-content {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
            animation: fadeIn 0.6s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .article-card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 1.5rem;
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .summary-card{
            grid-column: 1/-1;
        }

        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent);
            transform: scaleY(0);
            transition: transform 0.3s ease;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px var(--shadow);
        }

        .article-card:hover::before {
            transform: scaleY(1);
        }
        .article-card img {
            width: 100%;
            border-radius: 8px;
            margin-bottom: 1rem;
            transition: var(--transition);
        }
        .article-header {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.3;
            color: var(--text-primary);
            transition: color 0.3s ease;
        }

        .article-card:hover .article-header {
            color: var(--accent);
        }
        .limitingElement{
            max-height: 6rem; /* Approx. 3 lines */
        }
        .article-excerpt {
            color: var(--text-secondary);
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
        }

        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
            font-size: 0.875rem;
            color: var(--text-tertiary);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .article-tag {
            padding: 0.25rem 0.75rem;
            background: var(--tag-bg);
            color: var(--tag-text);
            border-radius: 1rem;
            font-size: 0.75rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .article-tag:hover {
            background: var(--accent);
            color: white;
            transform: scale(1.05);
        }

        /* Modal */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--modal-bg);
            z-index: 1000;
            animation: fadeIn 0.3s ease;
        }

        .modal.active {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-content {
            background: var(--card-bg);
            border-radius: 16px;
            max-width: 800px;
            max-height: 90vh;
            width: 90%;
            overflow-y: auto;
            position: relative;
            animation: slideUp 0.3s ease;
        }

        @keyframes slideUp {
            from {
                transform: translateY(50px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .modal-header {
            padding: 2rem;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            background: var(--card-bg);
            z-index: 10;
        }

        .modal-close {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            font-size: 1.5rem;
            color: var(--text-primary);
        }

        .modal-close:hover {
            background: var(--accent);
            color: white;
            transform: rotate(90deg);
        }

        .modal-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .modal-body {
            padding: 2rem;
        }

        .modal-text {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 2rem;
        }
        .modal-text img {
            max-width: 100%;
            border-radius: 8px;
            margin: 1rem 0;
        }

        .modal-footer {
            padding: 0 2rem 2rem;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .modal-link {
            padding: 0.75rem 1.5rem;
            background: var(--accent);
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 500;
            transition: var(--transition);
        }

        .modal-link:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        /* Loading */
        .loading {
            text-align: center;
            padding: 4rem;
            font-size: 1.2rem;
            color: var(--text-secondary);
        }

        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid var(--border);
            border-top-color: var(--accent);
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin: 0 auto 1rem;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-content {
                padding: 1rem;
            }

            .main-content {
                padding: 0 1rem;
            }

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

            .modal-content {
                width: 95%;
                max-height: 95vh;
            }

            .modal-title {
                font-size: 1.5rem;
            }
        }

        /* No articles message */
        .no-articles {
            text-align: center;
            padding: 4rem;
            color: var(--text-secondary);
        }

        .no-articles h2 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }