:root {
      --base: #F2EFF0;
      --surface-hero: #F2EFF0;
      --surface-dark: #0F172A;
      --surface-white: #FFFFFF;
      --sec-pad: clamp(72px, 10vw, 128px);
      --surface: #FFFFFF;
      --sub: #F3F6FA;
      --line: #D3DBE5;
      --line2: #BFCAD9;
      --ink: #0F172A;
      --mute: #58687F;
      --faint: #8494A9;
      --cyan: #2FB7DA;
      --steel: #2C4F7C;
      --display: 'Montserrat', system-ui, sans-serif;
      --body: 'IBM Plex Sans', system-ui, sans-serif;
      --mono: 'IBM Plex Mono', ui-monospace, monospace;
      --pad: clamp(20px, 5vw, 72px);
      --r: 14px;
    }

    * {
      box-sizing: border-box
    }

    html {
      scroll-behavior: smooth
    }

    body {
      margin: 0;
      background: var(--surface-hero);
      color: var(--ink);
      font-family: var(--body);
      font-size: 17px;
      line-height: 1.62;
      -webkit-font-smoothing: antialiased
    }

    .wrap {
      max-width: 1440px;
      margin: 0 auto;
      padding: 0 var(--pad)
    }

    h1,
    h2,
    h3 {
      font-family: var(--display);
      font-weight: 600;
      letter-spacing: -.028em;
      line-height: 1.06;
      margin: 0
    }

    p {
      margin: 0
    }

    a {
      color: inherit
    }

    [id] {
      scroll-margin-top: 90px
    }

    .eyebrow {
      font-family: var(--mono);
      font-size: 11.5px;
      letter-spacing: .16em;
      text-transform: uppercase;
      color: var(--faint);
      margin: 0 0 20px
    }

    .lead {
      color: var(--mute);
      font-size: 19px;
      max-width: 60ch
    }

    header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(242, 239, 240, .86);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--line);
      transition: background .3s
    }

    header.stuck {
      background: rgba(242, 239, 240, .97)
    }

    .bar {
      display: flex;
      align-items: center;
      gap: 34px;
      height: 82px
    }

    .mark {
      display: flex;
      align-items: center;
      gap: 11px;
      text-decoration: none;
      font-family: var(--display);
      font-weight: 600;
      letter-spacing: .11em;
      font-size: 15px
    }

    .nav {
      display: flex;
      gap: 26px;
      margin-left: auto;
      font-size: 15px
    }

    .nav a {
      text-decoration: none;
      color: var(--mute);
      position: relative
    }

    .nav a.active {
      color: var(--ink)
    }

    .nav a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -9px;
      height: 2px;
      background: var(--cyan)
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      font-family: var(--body);
      font-weight: 500;
      font-size: 15px;
      padding: 12px 24px;
      border-radius: 0;
      text-decoration: none;
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform .18s, background .18s, border-color .18s, color .18s
    }

    .btn-primary {
      background: var(--ink);
      color: #fff
    }

    .btn-primary:hover {
      background: var(--steel)
    }

    /* Hero — single left-aligned text column. Rules copied verbatim from
     use-cases.html (.page-hero / .hero-col / h1 / .lead); no screenshot column,
     no margin:auto, no text-align:center. */
    .page-hero {
      padding-top: clamp(48px, 7vw, 92px);
      padding-bottom: calc(var(--sec-pad) / 2)
    }

    /* Two-column hero — same grid, proportions and alignment as the home hero. */
    .page-hero-in {
      display: grid;
      grid-template-columns: 1fr 1.18fr;
      gap: clamp(32px, 5vw, 72px);
      align-items: center
    }

    .hero-col {
      max-width: 600px
    }

    .page-hero h1 {
      font-size: clamp(34px, 4.7vw, 58px);
      letter-spacing: -.04em
    }

    .page-hero .lead {
      margin: 20px 0 0;
      font-size: clamp(16px, 1.8vw, 19px);
      max-width: 56ch
    }

    /* Hero media — same 16/10.4 box and top-align nudge as the home hero window,
       so the diagram sits the same size and position as the index screenshot.
       Kept frameless (no card/shadow): it is transparent line-art, not an opaque
       screenshot, so a shadowed window would ring empty space. */
    .hero-media {
      position: relative;
      aspect-ratio: 16/10.4;
      margin-top: -20px
    }

    /* The SVG fills the sized media box, shown whole (contained, centred). */
    .hero-shot {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center
    }

    .hero-shot > img {
      max-width: 100%;
      max-height: 100%;
      width: auto;
      height: auto;
      object-fit: contain
    }

    /* Animated "layer that didn't exist" diagram (replaces the static about.svg).
       width/height 100% + the SVG's default preserveAspectRatio gives the same
       contain behaviour the <img> had. Text classes are scoped to the diagram so
       generic names like .body and .h cannot leak into the page. */
    .about-stack {
      display: block;
      width: 100%;
      height: 100%;
      overflow: visible
    }

    .about-stack .mono {
      font-family: var(--mono);
      font-size: 11px;
      letter-spacing: 1.8px
    }

    .about-stack .body {
      font-family: var(--display);
      font-size: 15px;
      font-weight: 500;
      fill: #0B1F3B
    }

    .about-stack .h {
      font-family: var(--display);
      font-size: 18px;
      font-weight: 600;
      letter-spacing: -.36px;
      fill: #0B1F3B
    }

    .about-stack .sub {
      font-family: var(--display);
      font-size: 15px;
      font-weight: 500;
      fill: #2C4F7C
    }

    /* One var(--sec-pad) gap per boundary, achieved with half-padding on both
     sides so adjacent sections sum to a single gap. Top-only padding left the
     final section with no bottom space, so the dark band butted into it.
     One body measure — max-width:70ch — on every prose paragraph. */
    section {
      padding: calc(var(--sec-pad) / 2) 0
    }

    /* Editorial two-column sections: label rail (eyebrow + H2) on the left,
       content on the right. Fills the page width like the grid/screenshot pages
       do, while the prose keeps its 70ch measure inside the right column. */
    /* Full-width sections — heading on top, content spans the whole wrap width,
       aligned with the hero. Prose keeps its own max-width for readability. */
    .prose-col {
      display: grid;
      grid-template-columns: 1fr;
      gap: clamp(16px, 2vw, 28px);
      align-items: start
    }

    .prose-col--full .criteria {
      max-width: none
    }

    /* Full-width sections: prose runs the whole column width, no early wrapping. */
    .prose-col .body-text,
    .prose-col .credential,
    .prose-col .boundary-closer,
    .prose-col .founder-quote,
    .prose-col .advisors,
    .prose-col .qualifier,
    .prose-col .criteria,
    .prose-col .closing-line {
      max-width: none
    }

    .sec-head {
      margin-bottom: 0
    }

    .sec-head h2 {
      font-size: clamp(26px, 3.4vw, 40px);
      margin-top: 14px
    }

    .body-text {
      color: var(--mute);
      font-size: 16.5px;
      max-width: 70ch
    }

    .body-text+.body-text {
      margin-top: 16px
    }

    .marseille {
      border-top: 1px solid var(--line2);
      padding-top: 22px;
      margin-top: clamp(24px, 3vw, 36px)
    }

    /* Pull-quote — promoted from a caption to a statement with its own vertical space */
    .closing-line {
      font-family: var(--display);
      font-weight: 500;
      font-size: clamp(24px, 3.4vw, 34px);
      letter-spacing: -.022em;
      line-height: 1.2;
      max-width: 30ch;
      margin-top: clamp(44px, 6vw, 72px)
    }

    /* Inline content links */
    .body-text a,
    .qualifier a,
    .criteria a {
      color: var(--steel);
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 2px
    }

    .body-text a:hover,
    .qualifier a:hover,
    .criteria a:hover {
      color: var(--ink)
    }

    /* Where-this-goes-next qualifier + Who-this-is-for criteria list */
    .qualifier {
      margin-top: 22px;
      color: var(--faint);
      font-size: 14.5px;
      line-height: 1.6;
      max-width: 70ch
    }

    .criteria {
      list-style: none;
      margin: 0;
      padding: 0;
      max-width: 70ch
    }

    .criteria li {
      border-top: 1px solid var(--line2);
      padding: 16px 0;
      color: var(--ink);
      font-size: 16.5px
    }

    .criteria li:last-child {
      border-bottom: 1px solid var(--line2)
    }

    /* Closing band — identical to home/platform/use-cases */
    .cta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 32px
    }

    .btn-onink {
      background: #fff;
      color: var(--ink)
    }

    .btn-onink:hover {}

    .ink {
      background: var(--surface-dark);
      color: #fff
    }

    .band {
      text-align: center;
      padding: var(--sec-pad) 0 clamp(48px, 6vw, 72px)
    }

    .band h2 {
      font-size: clamp(29px, 4.6vw, 56px);
      letter-spacing: -.035em;
      max-width: 22ch;
      margin: 0 auto
    }

    .band p {
      margin: 24px auto 0;
      color: rgba(255, 255, 255, .7);
      max-width: 54ch;
      font-size: 17.5px
    }

    .band .cta-row {
      justify-content: center
    }

    /* Closing-band footnote — identical to the home page */
    .band .band-meta {
      font-family: var(--body);
      font-size: 13px;
      color: #94A3B8;
      margin-top: 40px;
      line-height: 1.6;
      white-space: nowrap;
      max-width: none
    }

    .band-meta span:not(:last-child)::after {
      content: "·";
      margin: 0 12px;
      color: #94A3B8
    }

    @media (max-width:640px) {
      .band .band-meta {
        white-space: normal;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 6px;
        line-height: 1.5
      }

      .band-meta span:not(:last-child)::after {
        content: none
      }
    }

    .founder {
      display: grid;
      grid-template-columns: 180px 1fr;
      gap: clamp(24px, 3.2vw, 44px);
      align-items: start
    }

    .founder-photo {
      width: 180px;
      aspect-ratio: 1/1;
      border: 0;
      border-radius: var(--r);
      background: var(--sub);
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      filter: grayscale(1)
    }
    .founder-photo img { width: 100%; height: 100%; object-fit: cover; display: block }

    .founder-photo span {
      font-family: var(--mono);
      font-size: 10px;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--faint);
      background: var(--surface);
      padding: 6px 10px;
      border: 1px solid var(--line)
    }

    .credential {
      color: var(--ink);
      font-weight: 500;
      font-size: 18px;
      line-height: 1.6;
      max-width: 70ch
    }

    .credential + .credential {
      margin-top: 16px
    }

    .founder-name {
      font-family: var(--display);
      font-size: 21px;
      margin: 0 0 2px
    }

    .founder-name a {
      color: inherit;
      text-decoration-line: underline;
      text-decoration-color: var(--line2);
      text-underline-offset: 3px
    }

    .founder-role {
      font-family: var(--mono);
      font-size: 11.5px;
      letter-spacing: .16em;
      text-transform: uppercase;
      color: var(--faint);
      margin: 0 0 18px
    }

    .boundary-closer {
      margin-top: 22px;
      padding-top: 20px;
      border-top: 1px solid var(--line2);
      font-family: var(--body);
      font-weight: 400;
      font-size: 16px;
      color: var(--ink);
      line-height: 1.6;
      max-width: 70ch
    }

    .founder-quote {
      display: block;
      margin-top: 16px;
      font-family: var(--body);
      font-style: italic;
      color: var(--mute);
      font-size: 15px;
      line-height: 1.6;
      max-width: 70ch
    }

    /* Advisors line in body text — mono is reserved for eyebrows */
    .advisors {
      margin-top: 22px;
      color: var(--mute);
      font-size: 16.5px;
      max-width: 70ch
    }



    .reveal {
      opacity: 0;
      transform: translateY(16px)
    }

    .reveal.in {
      opacity: 1;
      transform: none;
      transition: opacity .65s ease, transform .65s cubic-bezier(.2, .7, .3, 1)
    }

    :focus-visible {
      outline: 2px solid var(--cyan);
      outline-offset: 3px;
      border-radius: 4px
    }

    footer {
      background: var(--surface-dark);
      color: rgba(255, 255, 255, .6);
      border-top: 1px solid rgba(255, 255, 255, .12);
      padding: clamp(46px, 5.5vw, 76px) 0 42px;
      font-size: 14.5px
    }

    .f-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 36px
    }

    footer h5 {
      font-family: var(--mono);
      font-size: 10.5px;
      letter-spacing: .16em;
      text-transform: uppercase;
      color: rgba(255, 255, 255, .34);
      margin: 0 0 16px;
      font-weight: 400
    }

    footer ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 10px
    }

    footer a {
      text-decoration: none
    }

    footer a:hover {
      color: #fff
    }

    .f-mark {
      display: flex;
      align-items: center;
      gap: 11px;
      font-family: var(--display);
      font-weight: 600;
      letter-spacing: .11em;
      font-size: 15px;
      color: #fff
    }

    .f-legal {
      margin-top: 50px;
      padding-top: 26px;
      border-top: 1px solid rgba(255, 255, 255, .12);
      font-family: var(--mono);
      font-size: 11.5px;
      color: rgba(255, 255, 255, .34);
      line-height: 2.1
    }

    @media (max-width:900px) {
      .page-hero-in {
        grid-template-columns: 1fr;
        gap: clamp(28px, 6vw, 40px)
      }

      .hero-shot {
        position: static
      }

      .prose-col {
        grid-template-columns: 1fr;
        gap: 20px
      }

      .nav {
        display: none
      }

      .f-grid {
        grid-template-columns: 1fr 1fr
      }

      .founder {
        grid-template-columns: 1fr
      }
    }

    @media (max-width:560px) {
      body {
        font-size: 16px
      }

      .f-grid {
        grid-template-columns: 1fr
      }
    }

    @media (prefers-reduced-motion:reduce) {
      * {
        animation: none !important;
        transition: none !important
      }

      .reveal {
        opacity: 1;
        transform: none
      }

      html {
        scroll-behavior: auto
      }
    }
    /* Generic image lightbox — any <img class="zoomable"> opens a full-view overlay. */
    .zoomable { cursor: zoom-in }
    .lb { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center;
      justify-content: center; padding: 24px; background: rgba(15,23,42,.86); opacity: 0;
      transition: opacity .2s ease }
    .lb[hidden] { display: none }
    .lb.open { opacity: 1 }
    .lb img { display: block; max-width: min(95vw,100%); max-height: 92vh; width: auto; height: auto;
      border-radius: 8px; box-shadow: 0 30px 90px -20px rgba(0,0,0,.65); cursor: default }
    .lb-close { position: absolute; top: 18px; right: 18px; width: 40px; height: 40px; border-radius: 50%;
      border: 0; background: rgba(255,255,255,.14); color: #fff; font-size: 22px; line-height: 1;
      cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background .15s }
    .lb-close:hover { background: rgba(255,255,255,.26) }
    .lb-close:focus-visible { outline: 2px solid #fff; outline-offset: 3px }
    @media (prefers-reduced-motion: reduce) { .lb { transition: none } }