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

        :root {
            --forest-dark: #2d5016;
            --forest-light: #4a7c2e;
            --forest-medium: #6ba34a;
            --earth-dark: #5c4033;
            --earth-light: #8b6f47;
            --accent-orange: #e8860c;
            --accent-yellow: #f4c430;
            --text-dark: #1a1a1a;
            --text-light: #555;
            --bg-light: #f9f7f4;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.10);
        }

        html {
            height: 100%;
        }

        html, body {
            font-family: "DM Sans", system-ui, sans-serif;
            background: linear-gradient(135deg, var(--forest-dark) 0%, var(--forest-medium) 100%);
            color: var(--text-dark);
        }

        body {
            padding-top: 56px;
        }

        body {
            display: flex;
            flex-direction: column;
        }

        header {
            background: transparent;
            color: white;
            padding: 2rem;
            text-align: center;
        }

        header.hidden {
            display: none;
        }

        header h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            font-weight: 700;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        header p {
            font-size: 1.1rem;
            opacity: 0.95;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
        }

        /* --------------------------------------------------------
         * Toolbar: back button + search bar
         * This pattern (frosted toolbar with back + search) is the
         * reference design for future Voenino apps that have
         * pagination or in-app search. See mockup:
         * dev/design/mockups/App Page Desired Design Change-5.png
         * -------------------------------------------------------- */
        .search-container {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 0.75rem max(2rem, calc((100% - 900px) / 2));
            position: sticky;
            top: 56px;
            z-index: 40;
        }

        .back-button {
            background: rgba(255, 255, 255, 0.9);
            color: var(--forest-dark);
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: 25px;
            font-family: inherit;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: var(--shadow);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .back-button:hover {
            background: white;
            box-shadow: var(--shadow-hover);
        }

        .back-button.hidden {
            display: none;
        }

        .search-input {
            flex: 1;
            min-width: 0;
            padding: 0.65rem 1rem;
            font-family: inherit;
            font-size: 1rem;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            border-radius: 25px;
            background: rgba(255, 255, 255, 0.9);
            transition: all 0.3s ease;
        }

        .search-input:focus {
            outline: none;
            border-color: rgba(255, 255, 255, 0.8);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
            background: white;
        }

        /* Home view */
        .home-view {
            flex: 1;
            padding: 2rem;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .home-view.hidden {
            display: none;
        }

        .section {
            animation: fadeIn 0.3s ease-in;
        }

        .section h2 {
            color: white;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            border-bottom: 3px solid rgba(255, 255, 255, 0.4);
            padding-bottom: 0.5rem;
            display: inline-block;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
        }

        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 2rem;
            animation: fadeIn 0.4s ease-in;
        }

        .card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            cursor: pointer;
        }

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

        .card-image {
            width: 100%;
            height: 220px;
            overflow: hidden;
            background: linear-gradient(135deg, var(--forest-light), var(--forest-medium));
        }

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

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

        .card-content {
            padding: 1.5rem;
        }

        .card-content h3 {
            color: var(--forest-dark);
            font-size: 1.4rem;
            margin-bottom: 0.75rem;
            font-weight: 600;
        }

        .card-content .teaser {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.5;
        }

        /* Article View */
        .article-view {
            flex: 1;
            animation: slideIn 0.4s ease;
        }

        .article-view.hidden {
            display: none;
        }

        .article-header {
            display: flex;
            flex-direction: column;
            align-items: center;
            background: transparent;
            color: white;
            padding: 1.5rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .article-title-section {
            order: -1;
            position: relative;
            z-index: 2;
            margin-bottom: 1rem;
        }

        .type-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.25);
            color: white;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .article-header h1 {
            font-size: 2.2rem;
            margin-bottom: 0;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
            font-weight: 700;
        }

        .article-image {
            width: 100%;
            max-width: 600px;
            height: auto;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .article-content {
            max-width: 900px;
            margin: 0 auto;
            padding: 2rem;
            background: white;
            border-radius: 24px;
            margin-top: 1.5rem;
        }

        .article-section {
            margin-bottom: 2.5rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #e8e5e0;
        }

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

        .article-section h2 {
            color: var(--forest-dark);
            font-size: 1.6rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-shadow: none;
            border-bottom: none;
        }

        .article-section p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-light);
            margin-bottom: 1rem;
        }

        .article-section ul {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }

        .article-section li {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }

        .article-section.cool-facts {
            background: linear-gradient(135deg, rgba(232, 134, 12, 0.08), rgba(244, 196, 48, 0.08));
            border-left: 4px solid var(--accent-orange);
            padding: 1.5rem;
            border-radius: 8px;
            border-bottom: none;
        }

        .article-section.cool-facts h2 {
            color: var(--accent-orange);
        }

        /* Responsive */
        @media (max-width: 768px) {
            header h1 {
                font-size: 2rem;
            }

            .cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 1.5rem;
            }

            .home-view {
                padding: 1rem;
            }

            .search-input {
                font-size: 1rem;
            }

            .article-header {
                padding: 1rem 1.5rem;
            }

            .article-header h1 {
                font-size: 1.8rem;
            }

            .article-content {
                padding: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            header h1 {
                font-size: 1.5rem;
            }

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

            .article-header h1 {
                font-size: 1.5rem;
            }
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

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

        .source-footer {
            margin-top: 2rem;
            padding: 1rem 1.5rem;
            background: #f5f3f0;
            border-top: 2px solid #e8e5e0;
            border-radius: 0 0 8px 8px;
            font-size: 0.85rem;
            color: #777;
            line-height: 1.6;
        }

        .source-footer a {
            color: var(--forest-light);
            text-decoration: none;
        }

        .source-footer a:hover {
            text-decoration: underline;
        }

        .source-footer .source-label {
            font-weight: 600;
            color: #666;
        }