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

        :root {
            --coral: #F2A09A;
            --coral-light: #FDF5F4;
            --coral-dark: #E88B84;
            --teal: #4CB5AE;
            --teal-dark: #3A9A94;
            --teal-light: #E8F6F5;
            --navy: #1A2B3C;
            --text-dark: #2D3748;
            --text-gray: #5A6B7D;
            --text-light: #8899AA;
            --white: #FFFFFF;
            --bg-cream: #FFFAF9;
            --border: #E8ECF1;
        }

        html { scroll-behavior: smooth; }

        body {
            font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3 {
            font-family: 'DM Serif Display', Georgia, serif;
            font-weight: 400;
        }

        /* ============================================
           ARTICLE HERO
        ============================================ */
        .article-hero {
            padding: 140px 20px 60px;
            background: linear-gradient(170deg, var(--bg-cream) 0%, var(--white) 60%, var(--teal-light) 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(76,181,174,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-hero .breadcrumb {
            font-size: var(--fs-breadcrumb);
            color: var(--text-light);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .article-hero .breadcrumb a {
            color: var(--teal);
            text-decoration: none;
        }

        .article-hero .breadcrumb a:hover {
            text-decoration: underline;
        }

        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            color: var(--navy);
            max-width: 780px;
            margin: 0 auto 20px;
            line-height: 1.2;
        }

        .article-hero .article-meta {
            font-size: var(--fs-article-meta);
            color: var(--text-light);
        }

        .article-hero .article-meta span {
            display: inline-block;
            margin: 0 8px;
        }

        .tag {
            display: inline-block;
            background: var(--teal-light);
            color: var(--teal-dark);
            font-size: var(--fs-tag);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        /* ============================================
           ARTICLE BODY
        ============================================ */
        .article-body {
            max-width: 720px;
            margin: 0 auto;
            padding: 48px 20px 80px;
        }

        .article-body p {
            font-family: 'Newsreader', Georgia, serif;
            font-size: var(--fs-article-body);
            line-height: 1.85;
            color: var(--text-gray);
            margin-bottom: 28px;
        }

        .article-body h2 {
            font-size: var(--fs-article-h2);
            color: var(--navy);
            margin: 48px 0 20px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .article-body h2:first-of-type {
            border-top: none;
            margin-top: 0;
            padding-top: 0;
        }

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

        /* Code Table */
        .code-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0 36px;
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-panel-body);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 1px 4px rgba(0,0,0,0.06);
        }

        .code-table thead {
            background: var(--navy);
            color: #fff;
        }

        .code-table th {
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
            font-size: var(--fs-tp-ai);
            text-transform: uppercase;
            letter-spacing: 0.8px;
        }

        .code-table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text-gray);
        }

        .code-table tbody tr:last-child td {
            border-bottom: none;
        }

        .code-table tbody tr:nth-child(even) {
            background: var(--bg-cream);
        }

        .code-table .code-val {
            font-weight: 700;
            color: var(--teal-dark);
            font-variant-numeric: tabular-nums;
        }

        /* Callout */
        .callout {
            background: var(--teal-light);
            border-left: 4px solid var(--teal);
            padding: 20px 24px;
            border-radius: 0 10px 10px 0;
            margin: 32px 0;
        }

        .callout p {
            font-family: 'DM Sans', sans-serif !important;
            font-size: var(--fs-callout) !important;
            color: var(--text-dark) !important;
            margin-bottom: 0 !important;
            line-height: 1.65 !important;
        }

        .callout strong {
            color: var(--teal-dark);
        }

        /* CTA Banner */
        .article-cta {
            background: linear-gradient(135deg, var(--navy) 0%, #2a4560 100%);
            border-radius: 16px;
            padding: 40px 36px;
            margin: 48px 0 0;
            text-align: center;
        }

        .article-cta h3 {
            color: #fff;
            font-size: var(--fs-cta-heading);
            margin-bottom: 12px;
        }

        .article-cta p {
            color: rgba(255,255,255,0.65) !important;
            font-family: 'DM Sans', sans-serif !important;
            font-size: var(--fs-cta-body) !important;
            margin-bottom: 24px !important;
        }

        .article-cta .btn {
            display: inline-block;
            background: var(--teal);
            color: #fff;
            padding: 14px 32px;
            border-radius: 10px;
            font-weight: 600;
            text-decoration: none;
            font-size: var(--fs-btn);
            transition: background 0.2s, transform 0.15s;
        }

        .article-cta .btn:hover {
            background: var(--teal-dark);
            transform: translateY(-1px);
        }

        /* ============================================
           RPM WORKFLOW DIAGRAM
        ============================================ */
        .rpm-flow {
            margin: 36px 0 40px;
            padding: 32px 24px 28px;
            background: linear-gradient(135deg, #F8FFFE 0%, var(--teal-light) 100%);
            border-radius: 16px;
            border: 1px solid #D0EDEA;
            overflow-x: auto;
        }

        .rpm-flow-label {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-mock-caption);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--teal-dark);
            font-weight: 700;
            text-align: center;
            margin-bottom: 24px;
        }

        .rpm-flow-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0;
            min-width: 600px;
        }

        /* Sources row: two inputs merging into the app */
        .rpm-sources {
            display: flex;
            align-items: flex-end;
            justify-content: center;
            gap: 48px;
            margin-bottom: 0;
            position: relative;
        }

        .rpm-source-group {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .rpm-source-group h5 {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-tp-ai);
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 3px;
            line-height: 1.3;
        }

        .rpm-source-group p {
            font-family: 'DM Sans', sans-serif !important;
            font-size: var(--fs-mock-caption) !important;
            color: var(--text-light) !important;
            line-height: 1.35 !important;
            margin-bottom: 0 !important;
        }

        .rpm-source-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 8px;
        }

        .rpm-source-icon svg {
            width: 24px;
            height: 24px;
            stroke-width: 1.8;
            fill: none;
            stroke: #fff;
        }

        .rpm-source-icon.device { background: linear-gradient(135deg, #6EBF8B, #4CAF74); }
        .rpm-source-icon.health-platform { background: linear-gradient(135deg, #E86A6A, #C54B4B); }

        .rpm-source-chips {
            display: flex;
            gap: 6px;
            margin-top: 8px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .rpm-source-chip {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-mock-label);
            color: var(--text-gray);
            background: #fff;
            padding: 3px 8px;
            border-radius: 12px;
            border: 1px solid #D0EDEA;
            white-space: nowrap;
        }

        /* Merge arrows */
        .rpm-merge-svg {
            width: 320px;
            height: 40px;
            margin: 0 auto;
            display: block;
        }

        .rpm-merge-svg path, .rpm-merge-svg line {
            stroke: var(--teal);
            stroke-width: 1.5;
            fill: none;
            opacity: 0.45;
        }

        .rpm-merge-svg polygon {
            fill: var(--teal);
            opacity: 0.45;
        }

        /* Pipeline row */
        .rpm-flow-steps {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
        }

        .rpm-flow-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            flex: 0 0 auto;
            width: 110px;
        }

        .rpm-flow-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 10px;
            position: relative;
        }

        .rpm-flow-icon svg {
            width: 26px;
            height: 26px;
            stroke-width: 1.8;
            fill: none;
            stroke: #fff;
        }

        .rpm-flow-icon.app { background: linear-gradient(135deg, #5BBFB8, var(--teal)); }
        .rpm-flow-icon.sync { background: linear-gradient(135deg, #4AAEC8, #3A96B0); }
        .rpm-flow-icon.dashboard { background: linear-gradient(135deg, var(--teal-dark), #2E857F); }
        .rpm-flow-icon.billing { background: linear-gradient(135deg, #E8957E, var(--coral)); }

        .rpm-flow-step h5 {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-tp-ai);
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 3px;
            line-height: 1.3;
        }

        .rpm-flow-step p {
            font-family: 'DM Sans', sans-serif !important;
            font-size: var(--fs-mock-caption) !important;
            color: var(--text-light) !important;
            line-height: 1.35 !important;
            margin-bottom: 0 !important;
        }

        .rpm-flow-arrow {
            flex: 0 0 auto;
            width: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding-bottom: 30px;
        }

        .rpm-flow-arrow svg {
            width: 24px;
            height: 24px;
            stroke: var(--teal);
            stroke-width: 2;
            fill: none;
            opacity: 0.5;
        }

        /* ============================================
           REVENUE VISUAL
        ============================================ */
        .revenue-visual {
            margin: 36px 0;
            padding: 28px 24px;
            background: var(--bg-cream);
            border-radius: 16px;
            border: 1px solid var(--border);
        }

        .revenue-visual-label {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-mock-caption);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-light);
            font-weight: 700;
            text-align: center;
            margin-bottom: 20px;
        }

        .revenue-bars {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .revenue-bar-row {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .revenue-bar-code {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-tp-ai);
            font-weight: 700;
            color: var(--teal-dark);
            min-width: 52px;
            text-align: right;
            font-variant-numeric: tabular-nums;
        }

        .revenue-bar-track {
            flex: 1;
            height: 28px;
            background: #EEF0F2;
            border-radius: 6px;
            overflow: hidden;
            position: relative;
        }

        .revenue-bar-fill {
            height: 100%;
            border-radius: 6px;
            display: flex;
            align-items: center;
            padding-left: 10px;
            transition: width 0.6s ease;
        }

        .revenue-bar-fill span {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-dot-label);
            font-weight: 600;
            white-space: nowrap;
        }

        .revenue-bar-fill.setup { background: linear-gradient(90deg, #A3D9C8, #7CCFB8); width: 15%; }
        .revenue-bar-fill.setup span { color: #1E6B52; }

        .revenue-bar-fill.device { background: linear-gradient(90deg, #7ECDC2, var(--teal)); width: 35%; }
        .revenue-bar-fill.device span { color: #fff; }

        .revenue-bar-fill.mgmt { background: linear-gradient(90deg, var(--teal), var(--teal-dark)); width: 55%; }
        .revenue-bar-fill.mgmt span { color: #fff; }

        .revenue-bar-fill.mgmt-add { background: linear-gradient(90deg, var(--teal-dark), #2E857F); width: 40%; }
        .revenue-bar-fill.mgmt-add span { color: #fff; }

        .revenue-bar-fill.interp { background: linear-gradient(90deg, #3A96B0, #2E7D95); width: 70%; }
        .revenue-bar-fill.interp span { color: #fff; }

        .revenue-bar-amount {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-tp-ai);
            font-weight: 600;
            color: var(--text-dark);
            min-width: 55px;
            font-variant-numeric: tabular-nums;
        }

        .revenue-total {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 8px;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 2px solid var(--border);
        }

        .revenue-total span {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-mock-text);
            color: var(--text-light);
        }

        .revenue-total strong {
            font-family: 'DM Serif Display', serif;
            font-size: var(--fs-stat-lg);
            color: var(--teal-dark);
        }

        .revenue-total-note {
            font-family: 'DM Sans', sans-serif;
            font-size: var(--fs-mock-field);
            color: var(--text-light);
            text-align: center;
            margin-top: 8px;
        }

        /* ============================================
           RESPONSIVE
        ============================================ */
        @media (max-width: 600px) {
            .article-hero { padding: 120px 16px 40px; }
            .article-body { padding: 32px 16px 60px; }
            .article-body p { font-size: var(--fs-article-body-sm); }
            .code-table { font-size: var(--fs-flow-text); }
            .code-table th, .code-table td { padding: 10px 10px; }
            .article-cta { padding: 28px 20px; }
        }

        @media (prefers-reduced-motion: reduce) {
            * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
        }