/* ===== RESET & BASE ===== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Jost', sans-serif;
            font-weight: 400;
            font-size: 14px;
            background: #ffffff;
            color: #1a2c3e;
            line-height: 1.6;
        }
        h1 {
            font-size: 36px;
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: 20px;
            color: #ffb347;
        }
        h2 {
            font-size: 28px;
            font-weight: 600;
            margin: 40px 0 20px;
            color: #ffb347;
            border-bottom: 2px solid #eef2f6;
            padding-bottom: 12px;
        }
        h2 a {
            color: #ffb347;
            text-decoration: none;
        }
        h2 a:hover {
            text-decoration: underline;
        }
        h3 {
            font-size: 22px;
            font-weight: 600;
            margin: 30px 0 15px;
            color: #0056b3;
        }
        h4 {
            font-size: 18px;
            font-weight: 500;
            margin: 20px 0 10px;
            color: #0A2F44;
        }
        p {
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 20px;
            color: #2c3e44;
        }
        ul,
        ol {
            margin: 20px 0 20px 30px;
        }
        li {
            margin-bottom: 10px;
            font-size: 16px;
            color: #2c3e44;
        }
        .container {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER ===== */
        .main-header {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            height: 80px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }
        .logo-icon img {
            height: 50px;
            width: auto;
            display: block;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 32px;
            align-items: center;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #1a2c3e;
            transition: 0.2s;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: #0056b3;
        }
        .nav-cta {
            background: #0056b3;
            color: #fff !important;
            padding: 10px 24px;
            border-radius: 40px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }
        .bar {
            width: 26px;
            height: 2px;
            background: #1a2c3e;
            margin: 4px 0;
            transition: 0.3s;
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                background: #fff;
                flex-direction: column;
                gap: 24px;
                padding: 40px;
                transition: 0.3s;
                z-index: 999;
                box-shadow: 0 20px 30px rgba(0, 0, 0, 0.05);
            }
            .nav-links.active {
                left: 0;
            }
            h1 {
                font-size: 30px;
            }
            h2 {
                font-size: 24px;
            }
            p {
                font-size: 15px;
            }
            li {
                font-size: 15px;
            }
        }

        /* ===== HERO ===== */
        .blog-post-header {
            padding: 140px 0 40px;
            background: linear-gradient(135deg, #0A2F44 0%, #002244 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .blog-post-header::before {
            content: "";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 350px;
            height: 350px;
            background-image: url('../waterlink-favicon.webp');
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
            z-index: 0;
        }
        .blog-post-header .container {
            position: relative;
            z-index: 1;
        }
        .post-category {
            display: inline-block;
            background: #ffb347;
            color: #0A2F44;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .post-meta {
            display: flex;
            gap: 24px;
            margin: 20px 0;
            flex-wrap: wrap;
        }
        .post-meta span {
            font-size: 14px;
            opacity: 0.8;
        }
        .breadcrumb {
            font-size: 13px;
            margin-bottom: 20px;
            color: #aaa;
        }
        .breadcrumb a {
            color: #ffb347;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }

        /* ===== TRUST BADGES ===== */
        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            margin: 24px 0 16px;
            padding: 16px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.10);
        }
        .trust-badges span {
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #e8e8e8;
        }
        .trust-badges i {
            color: #ffb347;
            font-size: 16px;
        }

        /* ===== FEATURED IMAGE ===== */
        .featured-image {
            margin: 40px 0;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.10);
            text-align: center;
            background: #f5f5f5;
        }
        .featured-image img {
            width: 100%;
            max-width: 100%;
            height: auto;
            max-height: 450px;
            object-fit: contain;
            display: block;
            margin: 0 auto;
        }
        @media (min-width: 1200px) {
            .featured-image img {
                max-height: 450px;
            }
        }
        @media (min-width: 768px) and (max-width: 1199px) {
            .featured-image img {
                max-height: 350px;
            }
        }
        @media (max-width: 767px) {
            .featured-image img {
                max-height: 250px;
            }
        }

        /* ===== TOC ===== */
        .toc-box {
            background: #f8fafc;
            padding: 28px;
            border-radius: 20px;
            margin: 40px 0;
            border: 1px solid #eef2f6;
        }
        .toc-box h3 {
            margin-top: 0;
            margin-bottom: 16px;
        }
        .toc-box ul {
            margin-left: 20px;
        }
        .toc-box li {
            margin-bottom: 8px;
        }
        .toc-box a {
            color: #0056b3;
            text-decoration: none;
        }
        .toc-box a:hover {
            text-decoration: underline;
        }

        /* ===== CONTENT ===== */
        .content-section {
            margin-bottom: 40px;
        }

        /* ===== TABLES ===== */
        .pricing-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            font-size: 15px;
        }
        .pricing-table thead tr {
            background: #0056b3;
            color: #fff;
        }
        .pricing-table th {
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
        }
        .pricing-table td {
            padding: 12px 18px;
            border-bottom: 1px solid #eef2f6;
        }
        .pricing-table tbody tr:nth-child(even) {
            background: #f8fafc;
        }
        .pricing-table tbody tr:hover {
            background: #eef6ff;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            font-size: 15px;
        }
        .compare-table thead tr {
            background: #0A2F44;
            color: #fff;
        }
        .compare-table th {
            padding: 14px 18px;
            text-align: left;
            font-weight: 600;
        }
        .compare-table td {
            padding: 12px 18px;
            border-bottom: 1px solid #eef2f6;
        }
        .compare-table tbody tr:nth-child(even) {
            background: #f8fafc;
        }

        /* ===== INFO BOX ===== */
        .info-box {
            background: #eef6ff;
            padding: 24px;
            border-radius: 16px;
            margin: 30px 0;
            border-left: 4px solid #0056b3;
        }
        .info-box strong {
            color: #0056b3;
        }

        /* ===== FAQ ===== */
        .faq-section {
            margin: 50px 0;
        }
        .faq-item {
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid #eef2f6;
        }
        .faq-item h3 {
            margin-bottom: 12px;
            cursor: pointer;
            font-size: 18px;
        }
        .faq-item p {
            margin-bottom: 0;
        }

        /* ===== AUTHOR BIO ===== */
        .author-bio {
            background: #f8fafc;
            padding: 30px;
            border-radius: 20px;
            margin: 50px 0;
            display: flex;
            gap: 24px;
            align-items: center;
            flex-wrap: wrap;
            border: 1px solid #eef2f6;
        }
        .author-avatar {
            width: 80px;
            height: 80px;
            background: #0056b3;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 32px;
            flex-shrink: 0;
        }
        .author-credentials {
            font-size: 14px;
            color: #555;
            margin-top: 4px;
        }
        .author-credentials strong {
            color: #1a2c3e;
        }

        /* ===== RELATED ARTICLES ===== */
        .related-articles {
            margin: 50px 0;
            padding: 28px;
            background: #f8fafc;
            border-radius: 20px;
            border: 1px solid #eef2f6;
        }
        .related-articles h3 {
            margin-top: 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px 24px;
            margin-top: 16px;
        }
        .related-grid a {
            color: #0056b3;
            text-decoration: none;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .related-grid a:hover {
            text-decoration: underline;
        }
        @media (max-width: 600px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CTA BOX ===== */
        .cta-box {
            background: linear-gradient(135deg, #0056b3, #003d82);
            padding: 40px;
            border-radius: 24px;
            text-align: center;
            color: #fff;
            margin: 50px 0;
        }
        .cta-box h3 {
            color: #fff;
            margin-top: 0;
        }
        .cta-btn {
            background: #fff;
            color: #0056b3;
            padding: 14px 32px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 600;
            display: inline-block;
            margin-top: 16px;
            transition: 0.2s;
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.20);
        }

        /* ===== SHARE ===== */
        .share-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            margin: 30px 0;
        }
        .share-btn {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            text-decoration: none;
            transition: 0.2s;
        }
        .share-btn:hover {
            transform: translateY(-3px);
        }
        .share-fb {
            background: #1877f2;
        }
        .share-wa {
            background: #25d366;
        }
        .share-li {
            background: #0077b5;
        }
        .share-x {
            background: #000;
        }

        /* ===== INTERLINKING ===== */
        .interlinking-box {
            background: #eef6ff;
            padding: 20px;
            border-radius: 16px;
            margin: 30px 0;
            text-align: center;
            border: 1px solid #d0e3f7;
        }
        .interlinking-box a {
            color: #0056b3;
            font-weight: 600;
            text-decoration: none;
        }
        .interlinking-box a:hover {
            text-decoration: underline;
        }

        /* ===== FOOTER ===== */
        .main-footer {
            background: #0a1c2a;
            color: #e8e8e8;
            padding: 56px 0 24px;
            margin-top: 50px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-col h4 {
            font-size: 20px;
            color: #ffb347;
            margin-bottom: 20px;
            font-weight: 600;
            position: relative;
            display: inline-block;
        }
        .footer-col h4:after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 40px;
            height: 2px;
            background: #ffb347;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col a {
            color: #d0d0d0;
            text-decoration: none;
            transition: 0.2s;
            font-size: 14px;
        }
        .footer-col a:hover {
            color: #ffb347;
            padding-left: 5px;
        }
        .footer-col p {
            color: #d0d0d0;
            line-height: 1.6;
        }
        .social-links {
            display: flex;
            gap: 16px;
            margin-top: 20px;
        }
        .social-links a {
            background: #1e3a4d;
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: 0.2s;
            color: #fff;
            font-size: 18px;
        }
        .social-links a:hover {
            background: #ffb347;
            transform: translateY(-3px);
            color: #0a1c2a;
        }
        .footer-bottom {
            border-top: 1px solid #1e3a4d;
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #b0b0b0;
        }
        .footer-bottom a {
            color: #00c8ff;
            text-decoration: none;
            font-weight: 500;
        }
        .footer-bottom a:hover {
            text-decoration: underline;
        }

        /* ===== FLOATING WHATSAPP ===== */
        .whatsapp-float {
            position: fixed;
            bottom: 28px;
            right: 28px;
            background: #25D366;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #fff;
            z-index: 999;
            text-decoration: none;
            transition: 0.2s;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.20);
        }
        .whatsapp-float:hover {
            transform: scale(1.08);
        }

        /* ===== MOBILE ACTIONS ===== */
        .mobile-actions {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 65px;
            background: #fff;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.10);
            z-index: 1000;
            border-top: 1px solid #eef2f6;
        }
        .mobile-actions a {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
        }
        .btn-call {
            background: #0056b3;
            color: #fff;
        }
        .btn-whatsapp {
            background: #25D366;
            color: #fff;
        }
        @media (max-width: 768px) {
            .mobile-actions {
                display: flex;
            }
            body {
                padding-bottom: 65px;
            }
        }

        /* ===== LAST UPDATED ===== */
        .last-updated {
            font-size: 14px;
            color: #777;
            margin-top: -10px;
            margin-bottom: 24px;
            padding: 8px 16px;
            background: #f8fafc;
            border-radius: 8px;
            display: inline-block;
        }
        .last-updated strong {
            color: #1a2c3e;
        }

        /* ===== RELATED POSTS ===== */
.related-posts {
    margin: 50px 0 30px;
}

.related-posts h3 {
    font-size: 24px;
    font-weight: 600;
    color: #0A2F44;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.related-posts h3 i {
    color: #ffb347;
    font-size: 22px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

/* ----- Related Card ----- */
.related-card {
    background: #ffffff;
    border: 1px solid #eef2f6;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.related-card:hover {
    transform: translateY(-6px);
    border-color: #0056b3;
    box-shadow: 0 12px 30px rgba(0, 86, 179, 0.10);
}

.related-card a {
    text-decoration: none;
    color: inherit;
    display: block;
}

/* ----- Card Image ----- */
.related-card-img {
    height: 170px;
    overflow: hidden;
    background: #f0f3f7;
    position: relative;
}

.related-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
}

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

/* ----- Card Content ----- */
.related-card-content {
    padding: 18px 20px 20px;
}

.related-category {
    font-size: 11px;
    font-weight: 600;
    color: #0056b3;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    display: inline-block;
    margin-bottom: 4px;
}

.related-card-content h4 {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    color: #1a2c3e;
    margin: 6px 0 0;
    transition: color 0.2s ease;
}

.related-card:hover .related-card-content h4 {
    color: #0056b3;
}

/* ----- Card Excerpt (optional) ----- */
.related-card-excerpt {
    font-size: 14px;
    color: #5a6a7a;
    margin-top: 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 768px) {
    .related-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .related-card-img {
        height: 140px;
    }

    .related-card-content {
        padding: 14px 16px 16px;
    }

    .related-card-content h4 {
        font-size: 14px;
    }

    .related-posts h3 {
        font-size: 20px;
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .related-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .related-card-img {
        height: 160px;
    }
}

/* ===== FOOTER - Enhanced ===== */
.main-footer {
    background: #0a1c2a;
    color: #e8e8e8;
    padding: 56px 0 24px;
    margin-top: 50px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-col h4 {
    font-size: 18px;
    color: #ffb347;
    margin-bottom: 20px;
    font-weight: 600;
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.footer-col h4:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #ffb347;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col ul li {
    margin-bottom: 10px;
    padding: 0;
}

.footer-col ul li a {
    color: #d0d0d0;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s ease;
    display: inline-block;
}

.footer-col ul li a:hover {
    color: #ffb347;
    padding-left: 6px;
}

.footer-col p {
    color: #d0d0d0;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
}

.footer-col p i {
    margin-right: 10px;
    color: #ffb347;
    width: 18px;
}

.footer-col p a {
    color: #d0d0d0;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-col p a:hover {
    color: #ffb347;
}

/* Footer Logo */
.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.footer-logo-img {
    height: 44px;
    width: auto;
    display: block;
}

.footer-logo h3 {
    color: #ffb347;
    font-size: 22px;
    font-weight: 600;
    margin: 0;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.social-links a {
    background: #1e3a4d;
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    color: #ffffff;
    font-size: 18px;
    text-decoration: none;
}

.social-links a:hover {
    background: #ffb347;
    transform: translateY(-3px);
    color: #0a1c2a;
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid #1e3a4d;
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #b0b0b0;
}

.footer-bottom a {
    color: #00c8ff;
    text-decoration: none;
    font-weight: 500;
}

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

/* Mobile Footer */
@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .footer-col:first-child {
        grid-column: 1 / -1;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-logo h3 {
        font-size: 20px;
    }

    .footer-col h4 {
        font-size: 16px;
    }

    .social-links {
        justify-content: center;
    }

    .footer-col {
        text-align: center;
    }

    .footer-col h4:after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
    }

    .footer-col:first-child {
        grid-column: 1;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-col h4:after {
        left: 50%;
        transform: translateX(-50%);
    }

    .social-links {
        justify-content: center;
    }
}