:root {
            --primary-color: #2c5aa0;
            --secondary-color: #1e4a8a;
            --accent-color: #e74c3c;
            --text-dark: #2d3748;
            --text-light: #718096;
            --bg-light: #f7fafc;
            --border-color: #e2e8f0;
            --whatsapp-green: #25D366;
            --whatsapp-dark: #128C7E;
        }

        .npo-articles {
            font-size: 16px;
            line-height: 1.5;
            color: var(--text-dark);
            overflow-x: hidden;
            padding-bottom: 70px;
        }
        .container { padding-left: 1rem; padding-right: 1rem; }
        .article-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 2rem 0;
            margin-bottom: 1.5rem;
            text-align: center;
        }
        .article-header h1 { font-size: 1.75rem; line-height: 1.3; margin-bottom: 1rem; }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 1rem;
            margin: 1.5rem 0 0;
            font-size: 0.85rem;
        }
        .article-meta-item { display: inline-flex; align-items: center; gap: 0.4rem; color: rgba(255,255,255,0.9); }
        .article-meta-item a { color: white; text-decoration: underline; }
        .article-content {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            word-wrap: break-word;
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            margin: 1.5rem auto;
            border-radius: 12px;
            box-shadow: 0 6px 18px rgba(0,0,0,0.08);
        }
        .table-of-contents {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 1.25rem;
            margin-bottom: 1.5rem;
            border-left: 4px solid var(--primary-color);
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            border-radius: 20px;
            padding: 2rem 1.5rem;
            margin: 2rem 0;
            text-align: center;
        }
        .cta-button {
            background: rgba(255,255,255,0.2);
            color: white;
            border: 2px solid white;
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
        }
        .social-sharing {
            background: var(--bg-light);
            border-radius: 20px;
            padding: 1.5rem;
            margin: 2rem 0;
            text-align: center;
        }
        .social-share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            color: white;
            text-decoration: none;
            margin: 0.25rem;
            transition: transform 0.2s ease;
        }
        .floating-share-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            box-shadow: 0 -2px 15px rgba(0, 0, 0, 0.1);
            padding: 10px 16px;
            z-index: 1030;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1rem;
            border-top: 1px solid rgba(0,0,0,0.05);
            flex-wrap: wrap;
        }
        .floating-share-bar .social-share-btn { width: 40px; height: 40px; font-size: 1.1rem; margin: 0; }
        .whatsapp-chat {
            position: fixed;
            bottom: 80px;
            right: 15px;
            z-index: 9999;
            display: flex;
            flex-direction: row-reverse;
            align-items: center;
            gap: 10px;
            cursor: pointer;
        }
        .whatsapp-button {
            background-color: var(--whatsapp-green);
            color: white;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }
        .whatsapp-bubble {
            background-color: white;
            color: #333;
            padding: 8px 14px;
            border-radius: 24px 24px 24px 4px;
            font-size: 12px;
            font-weight: 500;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            max-width: 180px;
            line-height: 1.3;
        }
        .floating-ctas {
            position: fixed;
            left: 15px;
            bottom: 80px;
            z-index: 9998;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .floating-cta-btn {
            background: white;
            border-radius: 40px;
            padding: 10px 18px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            font-weight: bold;
            font-size: 0.85rem;
            border: none;
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .floating-cta-btn.best-deal {
            background: linear-gradient(135deg, #f39c12, #e67e22);
            color: white;
        }
        .floating-cta-btn.free-visit {
            background: linear-gradient(135deg, #27ae60, #2ecc71);
            color: white;
        }
        .sticky-deal-banner {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: linear-gradient(90deg, #e74c3c, #c0392b);
            color: white;
            padding: 10px;
            text-align: center;
            font-weight: bold;
            z-index: 1040;
            transform: translateY(-100%);
            transition: transform 0.3s ease;
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
        }
        .sticky-deal-banner a, .sticky-deal-banner button {
            background: rgba(255,255,255,0.2);
            border: none;
            padding: 5px 12px;
            border-radius: 30px;
            color: white;
            text-decoration: none;
        }
        /* Scroll pop-up */
        .scroll-popup {
            position: fixed;
            bottom: 100px;
            right: 20px;
            background: white;
            border-radius: 16px;
            box-shadow: 0 8px 25px rgba(0,0,0,0.2);
            padding: 15px 20px;
            width: 280px;
            z-index: 9999;
            display: none;
            animation: slideIn 0.3s ease;
            border-left: 5px solid var(--whatsapp-green);
        }
        .scroll-popup p {
            margin: 0 0 10px 0;
            font-size: 0.9rem;
            color: #333;
        }
        .scroll-popup .whatsapp-link {
            display: inline-block;
            background: var(--whatsapp-green);
            color: white;
            padding: 8px 15px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: bold;
            font-size: 0.85rem;
            margin-top: 5px;
        }
        .scroll-popup .close-popup {
            position: absolute;
            top: 8px;
            right: 12px;
            cursor: pointer;
            font-size: 18px;
            color: #999;
        }
        @keyframes slideIn {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        @media (min-width: 768px) {
            .npo-articles { padding-bottom: 80px; }
            .article-header h1 { font-size: 2.5rem; }
            .floating-ctas { bottom: 90px; left: 25px; }
            .whatsapp-chat { bottom: 90px; right: 25px; }
            .floating-cta-btn { padding: 12px 22px; font-size: 1rem; }
            .scroll-popup { width: 320px; bottom: 110px; right: 30px; }
        }
        @media (max-width: 576px) {
            .floating-cta-btn span { display: none; }
            .floating-cta-btn i { font-size: 1.4rem; margin: 0; }
            .floating-cta-btn { padding: 8px 12px; }
            .scroll-popup { width: 260px; bottom: 90px; right: 15px; }
        }