:root {
            --paper: #fbfaf6;
            --paper-2: #f5f3ec;
            --paper-3: #ede9dd;
            --ink: #171411;
            --ink-2: #3d3833;
            --muted: #7a736b;
            --line: #e4ddcc;
            --line-2: #d2c9b3;
            --rule: #2a2722;
            --brand: #7a1c1c;
            /* deep editorial red — like Economist/Stratechery */
            --brand-2: #9c2828;
            --accent: #a87d2e;
            /* warm gold accent */
            --up: #1d6b3b;
            --down: #a8261c;
            --tag-bg: #efeadb;
        }

        * {
            box-sizing: border-box
        }

        html,
        body {
            margin: 0;
            padding: 0;
            background: var(--paper);
            color: var(--ink);
            font-family: 'Source Serif 4', 'Georgia', serif;
            font-size: 18px;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased
        }

        a {
            color: inherit;
            text-decoration: none;
            cursor: pointer
        }

        .ui {
            font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif
        }

        .mono {
            font-family: 'JetBrains Mono', ui-monospace, monospace;
            font-variant-numeric: tabular-nums
        }

        /* Top bar */
        .topbar {
            border-bottom: 1px solid var(--rule);
            background: var(--paper);
            position: sticky;
            top: 0;
            z-index: 50
        }

        .topbar-inner {
            max-width: 1240px;
            margin: 0 auto;
            padding: 14px 22px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap
        }

        .brand {
            display: flex;
            align-items: baseline;
            gap: 8px;
            cursor: pointer
        }

        .brand-name {
            font-family: 'Source Serif 4', serif;
            font-weight: 700;
            letter-spacing: -0.02em;
            font-size: 26px
        }

        .brand-name .acc {
            color: var(--brand);
            font-style: italic
        }

        .brand-tag {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.16em;
            font-weight: 600;
            padding: 3px 8px;
            border: 1px solid var(--line-2);
            margin-left: 4px
        }

        .nav {
            display: flex;
            gap: 2px;
            margin-left: 14px;
            flex-wrap: wrap;
            font-family: 'Inter', sans-serif
        }

        .nav a {
            font-size: 14px;
            color: var(--ink-2);
            padding: 6px 11px;
            letter-spacing: 0.02em;
            font-weight: 600;
            border-bottom: 2px solid transparent;
            cursor: pointer
        }

        .nav a.active {
            color: var(--brand);
            border-bottom-color: var(--brand)
        }

        .nav a:hover {
            color: var(--brand)
        }

        .top-right {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 14px;
            font-family: 'Inter', sans-serif
        }

        .date-stamp {
            font-size: 13px;
            color: var(--muted);
            letter-spacing: 0.04em;
            font-weight: 500
        }

        .demo-badge {
            font-size: 11px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--brand);
            padding: 4px 8px;
            border: 1px solid rgba(122, 28, 28, 0.25);
            font-weight: 700;
            background: rgba(122, 28, 28, 0.04)
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 16px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.04em;
            border: 1px solid var(--ink);
            background: var(--ink);
            color: var(--paper);
            cursor: pointer;
            font-family: 'Inter', sans-serif;
            text-transform: uppercase
        }

        .btn:hover {
            background: var(--brand);
            border-color: var(--brand)
        }

        .btn.outline {
            background: transparent;
            color: var(--ink)
        }

        .btn.outline:hover {
            color: var(--brand);
            border-color: var(--brand);
            background: transparent
        }

        /* Page shell */
        .page {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 22px 80px
        }

        .page.narrow {
            max-width: 840px
        }

        .view {
            display: none
        }

        .view.active {
            display: block;
            animation: fade 0.25s ease-out
        }

        @keyframes fade {
            from {
                opacity: 0;
                transform: translateY(3px)
            }

            to {
                opacity: 1;
                transform: translateY(0)
            }
        }

        /* Breadcrumb */
        .breadcrumb {
            padding: 18px 0 4px;
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.14em;
            font-weight: 600
        }

        .breadcrumb a {
            color: var(--brand);
            cursor: pointer
        }

        .breadcrumb .sep {
            color: var(--line-2);
            margin: 0 8px
        }

        /* Hero / masthead */
        .masthead {
            padding: 56px 0 44px;
            border-bottom: 3px double var(--rule);
            position: relative
        }

        .masthead .kicker {
            display: inline-block;
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            letter-spacing: 0.2em;
            text-transform: uppercase;
            color: var(--brand);
            font-weight: 700;
            margin-bottom: 18px
        }

        .masthead h1 {
            font-family: 'Source Serif 4', serif;
            font-size: 66px;
            line-height: 1.02;
            letter-spacing: -0.025em;
            margin: 0 0 18px;
            font-weight: 600;
            max-width: 880px
        }

        .masthead h1 .acc {
            font-style: italic;
            color: var(--brand)
        }

        .masthead p.lede {
            font-size: 21px;
            color: var(--ink-2);
            max-width: 720px;
            margin: 0 0 28px;
            line-height: 1.55;
            font-family: 'Source Serif 4', serif
        }

        .masthead .meta {
            display: flex;
            gap: 24px;
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.14em;
            color: var(--muted);
            font-weight: 600
        }

        .masthead .meta span {
            display: flex;
            align-items: center;
            gap: 6px
        }

        .masthead .meta .dot {
            width: 5px;
            height: 5px;
            background: var(--brand);
            border-radius: 50%
        }

        /* Featured article tile */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 48px;
            padding: 40px 0;
            border-bottom: 1px solid var(--line)
        }

        .fa-main .fa-tag {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: var(--brand);
            font-weight: 700;
            margin-bottom: 14px;
            display: inline-block
        }

        .fa-main h2 {
            font-family: 'Source Serif 4', serif;
            font-size: 40px;
            line-height: 1.1;
            letter-spacing: -0.015em;
            margin: 0 0 14px;
            font-weight: 600;
            cursor: pointer
        }

        .fa-main h2:hover {
            color: var(--brand)
        }

        .fa-main p {
            font-size: 18px;
            color: var(--ink-2);
            margin: 0 0 18px;
            line-height: 1.55;
            max-width: 580px
        }

        .fa-main .byline {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            font-weight: 600
        }

        .fa-main .byline .author {
            color: var(--ink)
        }

        .fa-side {
            border-left: 1px solid var(--line);
            padding-left: 32px
        }

        .fa-side h4 {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.18em;
            color: var(--muted);
            font-weight: 700;
            margin: 0 0 18px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--line)
        }

        .fa-side ul {
            list-style: none;
            padding: 0;
            margin: 0
        }

        .fa-side li {
            padding: 14px 0;
            border-bottom: 1px solid var(--line);
            cursor: pointer
        }

        .fa-side li:last-child {
            border-bottom: none
        }

        .fa-side li:hover h5 {
            color: var(--brand)
        }

        .fa-side li .tag {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--brand);
            font-weight: 700;
            margin-bottom: 4px;
            display: block
        }

        .fa-side li h5 {
            font-family: 'Source Serif 4', serif;
            font-size: 18px;
            line-height: 1.3;
            margin: 0;
            font-weight: 600
        }

        /* Section */
        .section {
            padding: 44px 0 0;
            border-top: 1px solid var(--line)
        }

        .section:first-of-type {
            border-top: none
        }

        .section-head {
            display: flex;
            align-items: baseline;
            gap: 18px;
            margin: 0 0 28px
        }

        .section-head h2 {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.2em;
            color: var(--ink);
            margin: 0;
            font-weight: 700
        }

        .section-head .rule {
            flex: 1;
            height: 1px;
            background: var(--line-2)
        }

        .section-head .more {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            color: var(--brand);
            text-transform: uppercase;
            letter-spacing: 0.14em;
            font-weight: 600;
            cursor: pointer
        }

        /* Topic grid */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1px;
            background: var(--line);
            border: 1px solid var(--line-2)
        }

        .topic {
            background: var(--paper);
            padding: 26px 24px;
            cursor: pointer;
            transition: background 0.15s
        }

        .topic:hover {
            background: var(--paper-2)
        }

        .topic .num {
            font-family: 'JetBrains Mono', monospace;
            font-size: 13px;
            color: var(--accent);
            letter-spacing: 0.1em;
            font-weight: 600;
            margin-bottom: 10px
        }

        .topic h3 {
            font-family: 'Source Serif 4', serif;
            font-size: 24px;
            margin: 0 0 8px;
            font-weight: 600;
            letter-spacing: -0.01em
        }

        .topic:hover h3 {
            color: var(--brand)
        }

        .topic p {
            font-size: 16px;
            color: var(--ink-2);
            margin: 0 0 14px;
            line-height: 1.5
        }

        .topic .sub {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            font-weight: 600
        }

        /* Article list */
        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px 48px;
            padding: 8px 0 32px
        }

        .article-card {
            cursor: pointer;
            border-bottom: 1px solid var(--line);
            padding-bottom: 24px
        }

        .article-card .tag {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: var(--brand);
            font-weight: 700;
            margin-bottom: 10px;
            display: inline-block
        }

        .article-card h3 {
            font-family: 'Source Serif 4', serif;
            font-size: 24px;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin: 0 0 10px;
            font-weight: 600
        }

        .article-card:hover h3 {
            color: var(--brand)
        }

        .article-card p {
            font-size: 16px;
            color: var(--ink-2);
            margin: 0 0 12px;
            line-height: 1.55
        }

        .article-card .byline {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            font-weight: 600
        }

        .article-card .byline .author {
            color: var(--ink)
        }

        /* Article (sample analysis) page */
        .article-page {
            padding: 40px 0 60px;
            max-width: 760px;
            margin: 0 auto
        }

        .article-page .kicker {
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            letter-spacing: 0.2em;
            text-transform: uppercase;
            color: var(--brand);
            font-weight: 700;
            margin-bottom: 18px;
            display: block
        }

        .article-page h1 {
            font-family: 'Source Serif 4', serif;
            font-size: 48px;
            line-height: 1.08;
            letter-spacing: -0.02em;
            margin: 0 0 18px;
            font-weight: 600
        }

        .article-page .standfirst {
            font-size: 22px;
            color: var(--ink-2);
            line-height: 1.5;
            margin: 0 0 28px;
            font-family: 'Source Serif 4', serif
        }

        .article-page .byline-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
            border-top: 1px solid var(--rule);
            border-bottom: 1px solid var(--rule);
            margin-bottom: 36px;
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            font-weight: 600
        }

        .article-page .byline-row .author {
            color: var(--ink)
        }

        .article-page h2 {
            font-family: 'Source Serif 4', serif;
            font-size: 28px;
            letter-spacing: -0.01em;
            margin: 36px 0 14px;
            font-weight: 600
        }

        .article-page h3 {
            font-family: 'Source Serif 4', serif;
            font-size: 21px;
            margin: 28px 0 10px;
            font-weight: 600
        }

        .article-page p {
            font-size: 19px;
            line-height: 1.7;
            color: var(--ink);
            margin: 0 0 18px
        }

        .article-page p .dropcap {
            float: left;
            font-family: 'Source Serif 4', serif;
            font-size: 60px;
            line-height: 1;
            font-weight: 600;
            color: var(--brand);
            padding: 6px 10px 0 0
        }

        .article-page blockquote {
            border-left: 3px solid var(--brand);
            padding: 8px 0 8px 22px;
            margin: 24px 0;
            font-size: 23px;
            line-height: 1.45;
            color: var(--ink);
            font-family: 'Source Serif 4', serif;
            font-style: italic
        }

        .article-page .pullquote {
            font-family: 'Source Serif 4', serif;
            font-size: 30px;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: var(--ink);
            padding: 28px 0;
            margin: 32px 0;
            border-top: 1px solid var(--line-2);
            border-bottom: 1px solid var(--line-2);
            text-align: center;
            font-weight: 500
        }

        .article-page .data-block {
            background: var(--paper-2);
            border: 1px solid var(--line-2);
            padding: 22px 24px;
            margin: 28px 0;
            font-family: 'Inter', sans-serif
        }

        .article-page .data-block h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.18em;
            color: var(--muted);
            font-weight: 700;
            margin: 0 0 14px
        }

        .article-page .data-block table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px
        }

        .article-page .data-block th,
        .article-page .data-block td {
            text-align: left;
            padding: 7px 0;
            border-bottom: 1px solid var(--line)
        }

        .article-page .data-block th {
            color: var(--muted);
            font-weight: 500;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.06em
        }

        .article-page .data-block td {
            font-family: 'JetBrains Mono', monospace;
            font-variant-numeric: tabular-nums
        }

        .article-page .data-block td.lbl {
            font-family: 'Inter', sans-serif;
            font-weight: 500;
            color: var(--ink-2)
        }

        .article-page .tag-strip {
            display: flex;
            gap: 8px;
            margin: 36px 0 0;
            padding-top: 28px;
            border-top: 1px solid var(--line);
            flex-wrap: wrap
        }

        .article-page .tag-strip .pill {
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--ink-2);
            background: var(--tag-bg);
            padding: 5px 10px;
            font-weight: 600
        }

        /* Coming Soon stub */
        .cs-block {
            border: 1px solid var(--line-2);
            background: var(--paper);
            padding: 60px 40px;
            margin-top: 28px;
            text-align: center
        }

        .cs-block .cs-eyebrow {
            display: inline-block;
            font-family: 'Inter', sans-serif;
            font-size: 12px;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: var(--brand);
            font-weight: 700;
            padding: 5px 12px;
            border: 1px solid rgba(122, 28, 28, 0.25);
            background: rgba(122, 28, 28, 0.04);
            margin-bottom: 22px
        }

        .cs-block .cs-route {
            font-family: 'JetBrains Mono', monospace;
            color: var(--accent);
            font-size: 15px;
            margin-bottom: 14px
        }

        .cs-block h2 {
            font-family: 'Source Serif 4', serif;
            font-size: 38px;
            margin: 0 0 12px;
            letter-spacing: -0.02em;
            font-weight: 600
        }

        .cs-block p {
            color: var(--ink-2);
            font-size: 18px;
            max-width: 560px;
            margin: 0 auto 22px;
            line-height: 1.6;
            font-family: 'Source Serif 4', serif
        }

        .cs-block .cs-list {
            display: inline-block;
            text-align: left;
            border: 1px solid var(--line-2);
            padding: 16px 22px;
            background: var(--paper-2);
            margin-top: 6px;
            font-family: 'Inter', sans-serif
        }

        .cs-block .cs-list .lbl {
            font-size: 12px;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--muted);
            font-weight: 700;
            margin-bottom: 10px
        }

        .cs-block .cs-list ul {
            list-style: none;
            padding: 0;
            margin: 0
        }

        .cs-block .cs-list li {
            padding: 5px 0;
            font-size: 15px;
            color: var(--ink-2);
            font-family: 'JetBrains Mono', monospace
        }

        .cs-block .cs-list li::before {
            content: "› ";
            color: var(--brand)
        }

        /* Topic hub page */
        .topic-hub-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1px;
            background: var(--line);
            border: 1px solid var(--line-2);
            margin-top: 8px
        }

        .topic-hub {
            background: var(--paper);
            padding: 24px;
            cursor: pointer;
            transition: background 0.15s
        }

        .topic-hub:hover {
            background: var(--paper-2)
        }

        .topic-hub h3 {
            font-family: 'Source Serif 4', serif;
            font-size: 22px;
            margin: 0 0 8px;
            font-weight: 600;
            letter-spacing: -0.01em
        }

        .topic-hub:hover h3 {
            color: var(--brand)
        }

        .topic-hub p {
            font-size: 16px;
            color: var(--ink-2);
            margin: 0 0 12px;
            line-height: 1.5
        }

        .topic-hub ul {
            list-style: none;
            padding: 0;
            margin: 0;
            font-family: 'Inter', sans-serif
        }

        .topic-hub li {
            padding: 4px 0;
            font-size: 14px;
            color: var(--muted)
        }

        .topic-hub li::before {
            content: "› ";
            color: var(--brand)
        }

        /* About */
        .about-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 48px;
            padding: 24px 0
        }

        .about-grid h3 {
            font-family: 'Source Serif 4', serif;
            font-size: 24px;
            margin: 0 0 12px;
            font-weight: 600;
            letter-spacing: -0.01em
        }

        .about-grid p {
            font-size: 18px;
            color: var(--ink-2);
            line-height: 1.7
        }

        .about-side {
            border-left: 1px solid var(--line);
            padding-left: 32px;
            font-family: 'Inter', sans-serif
        }

        .about-side h4 {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.18em;
            color: var(--muted);
            font-weight: 700;
            margin: 0 0 14px
        }

        .about-side ul {
            list-style: none;
            padding: 0;
            margin: 0 0 24px
        }

        .about-side li {
            padding: 5px 0;
            font-size: 15px;
            color: var(--ink-2)
        }

        .about-side li::before {
            content: "› ";
            color: var(--brand)
        }

        /* Sitemap */
        .sm {
            padding: 24px 0;
            font-family: 'Inter', sans-serif
        }

        .sm-group {
            margin-bottom: 18px;
            padding: 22px;
            border: 1px solid var(--line);
            background: var(--paper-2)
        }

        .sm-group h3 {
            margin: 0 0 14px;
            font-family: 'Source Serif 4', serif;
            font-size: 20px;
            letter-spacing: -0.01em;
            color: var(--brand);
            font-weight: 600
        }

        .sm-route {
            display: grid;
            grid-template-columns: 1fr auto auto;
            gap: 14px;
            padding: 5px 0;
            align-items: center
        }

        .sm-route .path {
            font-family: 'JetBrains Mono', monospace;
            font-size: 14px;
            color: var(--ink);
            cursor: pointer
        }

        .sm-route .path:hover {
            color: var(--brand)
        }

        .sm-route .desc {
            color: var(--muted);
            font-size: 14px
        }

        .sm-route .stat {
            font-size: 11px;
            padding: 2px 7px;
            border: 1px solid var(--line-2);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            font-weight: 700;
            text-align: center;
            min-width: 80px
        }

        .sm-route .stat.v1 {
            color: #1d6b3b;
            border-color: #bfd9c8;
            background: #eaf3ed
        }

        .sm-route .stat.cs {
            color: #a87d2e;
            border-color: #e1d2a8;
            background: #f5eed8
        }

        .sm-route .indent {
            padding-left: 24px;
            color: var(--muted)
        }

        .legend-row {
            display: flex;
            gap: 18px;
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin: 14px 0;
            font-weight: 600
        }

        .legend-row .item {
            display: flex;
            align-items: center;
            gap: 6px
        }

        .legend-row .dot {
            width: 8px;
            height: 8px
        }

        .legend-row .dot.v1 {
            background: #1d6b3b
        }

        .legend-row .dot.cs {
            background: #a87d2e
        }

        /* Footer */
        .footer {
            border-top: 3px double var(--rule);
            background: var(--paper);
            padding: 28px 0;
            margin-top: 60px;
            font-family: 'Inter', sans-serif;
            font-size: 13px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            font-weight: 600
        }

        .footer-inner {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 22px;
            display: flex;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap
        }

        @media (max-width:880px) {
            .masthead h1 {
                font-size: 42px
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 32px
            }

            .fa-side {
                border-left: none;
                padding-left: 0;
                border-top: 1px solid var(--line);
                padding-top: 24px
            }

            .topic-grid,
            .topic-hub-grid,
            .article-list,
            .about-grid {
                grid-template-columns: 1fr
            }

            .about-side {
                border-left: none;
                padding-left: 0;
                border-top: 1px solid var(--line);
                padding-top: 24px;
                margin-top: 16px
            }

            .nav {
                display: none
            }

            .sm-route {
                grid-template-columns: 1fr;
                gap: 4px
            }
        }