@font-face{font-family:'DM Sans';font-style:normal;font-weight:100 900;font-display:swap;src:url(assets/fonts/dmsans.woff2) format('woff2')}
  :root{
    --paper:#ffffff; --paper-panel:#fafafa; --paper-deep:#f4f4f2;
    --panel:#fafafa; --panel-2:#f3f3f3;
    --ink:#141414; --ink-2:#6b6b6b; --ink-3:#909090;
    --steel:#141414; --steel-deep:#141414; --steel-line:rgba(255,255,255,.12);
    --signal:#141414;
    --on-dark:#fafafa; --on-dark-2:#9a9a9a; --on-dark-3:#6f6f6f;
    --line:#ededed; --line-2:#e4e4e4; --line-soft:#f1f1f1; --paper-line:rgba(255,255,255,.09);
    --serif:'DM Sans',system-ui,sans-serif;
    --sans:'DM Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
    --mono:'DM Sans',system-ui,sans-serif;
    --wrap:1200px;
    --r-pill:9999px; --r-lg:24px; --r-md:18px; --r-sm:12px; --r-xs:8px;
    --ease:cubic-bezier(.22,.61,.36,1);
    --shadow:0 1px 2px rgba(20,20,20,.05),0 14px 34px -20px rgba(20,20,20,.18);
    --shadow-lg:0 40px 90px -44px rgba(20,20,20,.42);
  }
  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
  html.lenis,html.lenis body{height:auto}
  .lenis.lenis-smooth{scroll-behavior:auto!important}
  .lenis.lenis-smooth [data-lenis-prevent]{overscroll-behavior:contain}
  .lenis.lenis-stopped{overflow:hidden}
  .lenis.lenis-smooth iframe{pointer-events:none}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:var(--sans);font-size:17px;line-height:1.5;letter-spacing:-.002em;
    -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  ::selection{background:var(--ink);color:#fff}

  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
  section{position:relative}

  /* ---------- intro preloader ---------- */
  #preloader{position:fixed;inset:0;z-index:200;background:var(--paper);display:flex;align-items:center;justify-content:center;transition:transform .9s var(--ease);will-change:transform}
  #preloader .preloader-logo{height:56px;width:auto;opacity:0;transform:translateY(12px) scale(.98);animation:ploadin .85s var(--ease) .15s forwards}
  @keyframes ploadin{to{opacity:1;transform:none}}
  #preloader.done{transform:translateY(-100%)}
  html.preloading,body.preloading{overflow:hidden}
  @media(max-width:600px){#preloader .preloader-logo{height:42px}}
  @media(prefers-reduced-motion:reduce){#preloader{display:none}}

  /* ---------- shared type ---------- */
  .eyebrow{font-family:var(--sans);font-size:12.5px;font-weight:500;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-3);display:inline-flex;align-items:center;gap:11px}
  .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ink);flex:none}
  h1,h2,h3{font-family:var(--sans);font-weight:500;text-wrap:balance;letter-spacing:-.03em;line-height:1.06;margin:0}
  h1{font-size:clamp(2.6rem,6.2vw,5rem)}
  h2{font-size:clamp(2rem,4.4vw,3.4rem);letter-spacing:-.028em}
  h3{font-size:clamp(1.25rem,2.2vw,1.6rem);letter-spacing:-.022em}
  .lede{font-size:clamp(1.12rem,1.7vw,1.4rem);line-height:1.45;color:var(--ink-2);max-width:44ch;text-wrap:pretty;letter-spacing:-.01em}
  p{margin:0;max-width:62ch}
  .measure{max-width:56ch}
  .sec-index{font-family:var(--sans);font-size:12.5px;font-weight:500;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-3)}
  .sec-head{display:flex;flex-direction:column;gap:20px;margin-bottom:56px}

  /* ---------- buttons ---------- */
  .cta{display:inline-flex;align-items:center;gap:11px;font-family:var(--sans);font-size:15px;font-weight:500;letter-spacing:-.01em;text-decoration:none;padding:15px 26px;background:var(--ink);color:#fff;border:0;border-radius:var(--r-pill);cursor:pointer;transition:background .2s,transform .2s var(--ease),box-shadow .2s}
  .cta:hover{background:#000;transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(20,20,20,.5)}
  .cta .arw{transition:transform .2s var(--ease)}
  .cta:hover .arw{transform:translateX(4px)}
  .cta.ghost{background:#fff;color:var(--ink);border:1px solid var(--line-2)}
  .cta.ghost:hover{background:var(--panel);border-color:var(--ink-3)}
  .cta.onDark{background:#fff;color:var(--ink)}
  .cta.onDark:hover{background:var(--panel)}
  .linkcta{font-family:var(--sans);font-size:15px;font-weight:500;letter-spacing:-.01em;color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;gap:6px;background:none;border:0;border-bottom:1.5px solid var(--ink);padding:0 0 2px;cursor:pointer;transition:opacity .18s,gap .18s}
  .linkcta:hover{opacity:.6;gap:9px}
  .onDark .linkcta,.hero .linkcta{color:var(--ink);border-color:var(--ink)}
  .hero .linkcta:hover{opacity:.6}
  a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:2px solid #439bf2;outline-offset:3px;border-radius:4px}

  /* ---------- nav ---------- */
  header.top{position:sticky;top:0;z-index:60;background:transparent;border-bottom:0}
  .top .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px}
  .brand{display:flex;align-items:center;gap:0;font-family:var(--sans);font-size:17px;letter-spacing:-.02em;font-weight:600;text-decoration:none;color:var(--ink);background:none;border:0;cursor:pointer;padding:0}
  .brandlogo{display:none;align-items:center;transition:filter .3s ease}
  .brand-product svg{height:17px;width:auto;display:block}
  img.brand-solutions{height:30px;width:auto}
  .footlogo{height:38px;width:auto;display:block}
  body[data-active="solutions"] .brand-solutions{display:flex}
  body[data-active="synoptia"] .brand-product{display:flex}
  header.top.nav-light .brandlogo{filter:brightness(0) invert(1)}
  .navmid{display:flex;gap:4px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px;flex-shrink:0}
  .tab{font-family:var(--sans);font-size:14px;font-weight:500;letter-spacing:-.01em;color:var(--ink-2);background:none;border:0;cursor:pointer;padding:8px 16px;border-radius:var(--r-pill);position:relative;transition:color .15s,background .15s;white-space:nowrap}
  .tab .sup{font-size:10px;letter-spacing:.03em;text-transform:uppercase;color:var(--ink-3);margin-left:6px}
  .tab:hover{color:var(--ink)}
  .tab[aria-current="page"]{color:#fff;background:var(--ink)}
  .tab[aria-current="page"] .sup{color:rgba(255,255,255,.6)}
  .langtog{display:flex;border:1px solid var(--line);border-radius:var(--r-pill);overflow:hidden;font-family:var(--sans);font-size:13px;font-weight:500;background:var(--panel);flex-shrink:0}
  .langtog button{background:none;border:0;padding:8px 13px;cursor:pointer;color:var(--ink-3);letter-spacing:.02em;border-radius:var(--r-pill)}
  .langtog button[aria-pressed="true"]{background:var(--ink);color:#fff}
  @media(max-width:680px){
    .top .wrap{gap:10px;padding-left:16px;padding-right:16px}
    .navmid{gap:0;padding:3px}
    .tab{padding:8px 10px;font-size:13px}
    .tab .sup{display:none}
    .langtog{font-size:12px}
    .langtog button{padding:7px 10px}
    img.brand-solutions{height:24px}
    .brand-product svg{height:15px}
  }
  @media(max-width:430px){
    .top .wrap{gap:6px;padding-left:12px;padding-right:12px}
    .tab{padding:7px 8px;font-size:12px}
    .langtog{font-size:11px}
    .langtog button{padding:6px 8px}
    img.brand-solutions{height:20px}
    .brand-product svg{height:14px}
  }

  /* ---------- pages ---------- */
  .page{display:none}
  .page.active{display:block}

  /* ---------- hero (light) ---------- */
  .hero{background:var(--paper);color:var(--ink);position:relative;overflow:hidden}
  .hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(60% 60% at 78% 8%,rgba(20,20,20,.05),transparent 70%);pointer-events:none}
  .hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:60px 60px;opacity:.3;mask-image:radial-gradient(120% 90% at 82% 0%,#000,transparent 68%);pointer-events:none}
  .hero .wrap{position:relative;display:flex;flex-direction:column;min-height:100vh;padding:96px 32px 44px;z-index:1}
  .hero .eyebrow{color:var(--ink-2)}
  .hero-lead{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:30px}
  .hero h1{color:var(--ink);margin:0;max-width:none;text-align:center;white-space:nowrap;font-size:clamp(1.1rem,2.2vw,1.75rem);line-height:1.15;letter-spacing:-.02em}
  .hero-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap;justify-content:center;margin-top:0}
  .hero-foot{margin-top:0;padding-top:26px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap}
  .hero-sub{max-width:44ch;color:var(--ink-2);font-size:.8rem;line-height:1.55}
  .hero-note{color:var(--ink-2);font-size:.8rem;line-height:1.55;text-align:right;max-width:28ch;margin-left:auto}
  [data-page="solutions"] .hero-foot{justify-content:center}
  [data-page="solutions"] .hero-sub{max-width:60ch;text-align:center}
  .hero-particles{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
  @media(max-width:760px){.hero-note{text-align:left;margin-left:0}.hero h1{font-size:clamp(1.05rem,4.4vw,1.55rem);max-width:26ch;white-space:normal}.hero .wrap{padding:80px 28px 36px}.hero-lead{gap:24px}}

  /* ---------- passport card ---------- */
  .passport{background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);font-family:var(--sans);overflow:hidden}
  .passport .pp-top{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
  .pp-tag{font-size:12px;font-weight:500;letter-spacing:.01em;color:var(--ink-3);font-variant-numeric:tabular-nums}
  .chip{font-family:var(--sans);font-size:11.5px;font-weight:500;letter-spacing:.01em;padding:5px 11px 5px 9px;border:1px solid var(--line-2);border-radius:var(--r-pill);display:inline-flex;align-items:center;gap:7px;line-height:1;color:var(--ink-2);background:var(--panel)}
  .chip::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
  .chip.current{color:#fff;background:var(--ink);border-color:var(--ink)}
  .chip.pending{color:var(--ink-2);background:#fff;border-style:dashed}
  .chip.historical,.chip.superseded{color:var(--ink-3);background:var(--panel);text-decoration:line-through;text-decoration-color:var(--line-2)}
  .pp-fact{padding:20px;font-family:var(--sans);font-size:1.3rem;font-weight:500;letter-spacing:-.02em;line-height:1.24;border-bottom:1px solid var(--line-soft)}
  .pp-meta{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-soft)}
  .pp-meta div{background:var(--paper);padding:13px 20px}
  .pp-meta .k{font-size:11px;letter-spacing:.01em;text-transform:uppercase;color:var(--ink-3);margin-bottom:4px}
  .pp-meta .v{font-size:14px;color:var(--ink);font-variant-numeric:tabular-nums}
  .pp-foot{padding:13px 20px;font-size:12px;color:var(--ink-3);display:flex;justify-content:space-between;letter-spacing:0;background:var(--panel);font-variant-numeric:tabular-nums}

  /* ---------- spacing ---------- */
  .band{padding:104px 0}
  .band.tight{padding:80px 0}

  /* problem */
  .problem .grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
  .problem h2 .muted{color:var(--ink-3)}
  .fragments{display:flex;flex-wrap:wrap;gap:9px;margin-top:6px}
  .frag{font-family:var(--sans);font-size:13.5px;font-weight:500;letter-spacing:-.01em;padding:9px 15px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-pill);color:var(--ink-2)}
  @media(max-width:820px){.problem .grid{grid-template-columns:1fr;gap:34px}}
  /* product "what it is" — Central-style feature layout */
  .whatis-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,60px);align-items:stretch}
  .whatis-left{display:flex;flex-direction:column}
  .whatis-title{margin:16px 0 0;font-size:clamp(2rem,3.4vw,3rem);line-height:1.02;letter-spacing:-.03em;color:var(--ink)}
  .whatis-sub{margin-top:14px;color:var(--ink-2);font-size:1.08rem;line-height:1.5;max-width:32ch}
  .whatis-inside{margin-top:auto;padding-top:44px}
  .whatis-inlabel{display:block;font-family:var(--sans);font-size:12.5px;font-weight:500;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-3)}
  .chipgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px;border-top:1px solid var(--line);padding-top:22px}
  .chipbox{background:#ececea;border:1px solid var(--line);border-radius:12px;padding:13px 16px;font-family:var(--sans);font-size:14px;font-weight:500;letter-spacing:-.01em;color:var(--ink)}
  .reveal .chipbox{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .reveal.in .chipbox{opacity:1;transform:none}
  .reveal.in .chipbox:nth-child(1){transition-delay:.12s}
  .reveal.in .chipbox:nth-child(2){transition-delay:.20s}
  .reveal.in .chipbox:nth-child(3){transition-delay:.28s}
  .reveal.in .chipbox:nth-child(4){transition-delay:.36s}
  .reveal.in .chipbox:nth-child(5){transition-delay:.44s}
  .reveal.in .chipbox:nth-child(6){transition-delay:.52s}
  .reveal.in .chipbox:nth-child(7){transition-delay:.60s}
  .reveal.in .chipbox:nth-child(8){transition-delay:.68s}
  .whatis-right{display:flex}
  .mock{flex:1;background:var(--ink);border-radius:26px;min-height:440px;display:flex;align-items:center;justify-content:center;padding:clamp(28px,4vw,56px);position:relative;overflow:hidden}
  .mock::before{content:"";position:absolute;inset:0;background:radial-gradient(70% 55% at 50% 10%,rgba(255,255,255,.07),transparent 70%);pointer-events:none}
  .mock-card{position:relative;background:#fff;border-radius:20px;padding:26px 26px 28px;width:100%;max-width:340px;box-shadow:0 30px 70px rgba(0,0,0,.38)}
  .mock-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
  .mock-klabel{font-family:var(--sans);font-size:12px;font-weight:600;letter-spacing:.05em;color:var(--ink-3)}
  .mock-fact{font-size:1.45rem;line-height:1.12;letter-spacing:-.025em;color:var(--ink)}
  .mock-line{height:1px;background:var(--line);margin:20px 0}
  .mock-meta{display:flex;flex-direction:column;gap:13px}
  .mock-meta>div{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
  .mock-meta .mk{font-family:var(--sans);font-size:11.5px;font-weight:500;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-3)}
  .mock-meta .mv{font-family:var(--sans);font-size:13.5px;font-weight:500;color:var(--ink);text-align:right}
  @media(max-width:820px){.whatis-grid{grid-template-columns:1fr;gap:24px}.whatis-right{order:-1}.whatis-inside{margin-top:32px;padding-top:32px}.mock{min-height:320px}}

  /* pinned scroll sequence (Visto-style) */
  .pin{position:relative;height:400vh}
  .pin-sticky{position:sticky;top:0;height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .pin .wrap{width:100%}
  .pin-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
  .pin-intro .sec-index{display:block}
  .pin-intro h2{margin-top:18px}
  .pin-intro .muted{color:var(--ink-3)}
  .pin-lede{margin-top:20px;max-width:48ch;font-size:14.5px;line-height:1.55;color:var(--ink-2)}
  .pin-lede.muted-p{margin-top:12px;color:var(--ink-3)}
  .pin-counter{margin-top:26px;font-variant-numeric:tabular-nums;font-size:13px;font-weight:500;color:var(--ink-3);letter-spacing:.08em}
  .pin-stage{position:relative;min-height:44vh}
  .pin-step{position:absolute;left:0;right:0;top:50%;opacity:0;transform:translateY(calc(-50% + 22px));transition:opacity .5s var(--ease),transform .5s var(--ease);pointer-events:none}
  .pin-step.active{opacity:1;transform:translateY(-50%);pointer-events:auto}
  .pin-word{display:block;font-family:var(--sans);font-weight:500;font-size:clamp(2.6rem,6vw,5.2rem);letter-spacing:-.035em;line-height:1;color:var(--ink)}
  .pin-line{margin-top:22px;font-size:clamp(1.05rem,1.8vw,1.4rem);color:var(--ink-2);max-width:34ch;line-height:1.42}
  .pin-track{position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--line)}
  .pin-fill{display:block;height:100%;background:var(--ink);transform-origin:left center;transform:scaleX(0);transition:transform .12s linear}
  @media(max-width:820px){.pin{height:360vh}.pin-grid{grid-template-columns:1fr;gap:24px}.pin-stage{min-height:36vh}.pin-intro h2{font-size:clamp(1.8rem,7vw,2.4rem)}}
  @media(prefers-reduced-motion:reduce){.pin{height:auto}.pin-sticky{position:relative;height:auto;padding:80px 0;display:block}.pin-stage{min-height:0}.pin-step{position:relative;opacity:1;transform:none;margin-bottom:40px}.pin-track{display:none}}

  /* scroll reveal panels (Visto-style clip open) */
  .reveal-seq{position:relative;height:340vh}
  .rs-sticky{position:sticky;top:0;height:100vh;overflow:hidden}
  .rs-panel{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;will-change:clip-path}
  .rs-panel{color:var(--ink)}
  .rs-panel.p1{background:#eeeeee}
  .rs-panel.vid{color:#fff;background:#141414}
  .rs-video{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);min-width:100%;min-height:100%;width:auto;height:auto;object-fit:cover;z-index:0}
  .rs-scrim{position:absolute;inset:0;background:rgba(16,16,16,.44);z-index:1}
  .rs-panel .rs-inner{position:relative;z-index:2;padding:32px}
  .rs-panel[data-axis="v"]{clip-path:inset(0% 50% 0% 50%)}
  .rs-panel[data-axis="h"]{clip-path:inset(50% 0% 50% 0%)}
  .rs-inner{max-width:min(92vw,900px);display:flex;flex-direction:column;align-items:center}
  .rs-eyebrow{font-family:var(--sans);font-size:12.5px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;opacity:.55;margin-bottom:24px}
  .rs-word{font-family:var(--sans);font-weight:500;font-size:clamp(2.2rem,4.6vw,4rem);letter-spacing:-.035em;line-height:1.06;text-wrap:balance}
  .rs-sub{margin-top:22px;font-size:clamp(1.05rem,1.8vw,1.4rem);opacity:.72;max-width:34ch;line-height:1.42}
  @media(max-width:820px){.reveal-seq{height:300vh}.rs-word{font-size:clamp(2rem,8vw,2.8rem)}}
  @media(prefers-reduced-motion:reduce){.reveal-seq{height:auto}.rs-sticky{position:relative;height:auto}.rs-panel{position:relative;clip-path:none!important;min-height:72vh}}

  /* position band */
  .position{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .position .wrap{padding:88px 32px}
  .bigquote{font-family:var(--sans);font-weight:500;font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.14;max-width:24ch;text-wrap:balance;letter-spacing:-.028em}
  .position p{margin-top:26px;color:var(--ink-2);max-width:60ch}

  /* method — Central-style reveal steps in a panel */
  .method{padding:64px 0}
  .method-panel{background:#f1f1ef;border:1px solid var(--line);border-radius:32px;padding:clamp(40px,6vw,84px) clamp(24px,5vw,72px)}
  .method-panel .sec-head{margin-bottom:16px}
  .method-steps{display:flex;flex-direction:column;gap:clamp(20px,3vh,36px);margin-top:28px}
  .mstep{display:flex}
  .mstep:nth-child(even){justify-content:flex-end}
  .mstep-in{display:flex;flex-direction:column;gap:10px;max-width:440px;border-left:1px solid var(--line-2);padding-left:30px}
  .micon{width:19px;height:19px;display:block}
  .micon svg{width:100%;height:100%;display:block;transform-origin:center;will-change:transform}
  .mnum{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--ink-3);font-variant-numeric:tabular-nums}
  .mtext h3{font-size:clamp(1.4rem,2.4vw,1.95rem);margin:2px 0 0}
  .mtext p{color:var(--ink-2);font-size:1.05rem;max-width:34ch;line-height:1.45;margin-top:6px}
  @media(max-width:760px){.mstep,.mstep:nth-child(even){justify-content:flex-start}.method-steps{gap:22px}.method-panel{border-radius:22px}}

  /* interactive example — dark card */
  .demo{background:var(--paper)}
  .demo h2{color:var(--ink)}
  .demo .intro{color:var(--ink-2);max-width:54ch}
  .stage{margin-top:44px;background:var(--ink);color:var(--on-dark);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
  .phasebar{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--steel-line)}
  .phasebtn{flex:1;min-width:190px;background:transparent;border:0;border-right:1px solid var(--steel-line);color:var(--on-dark-2);font-family:var(--sans);font-size:13.5px;font-weight:500;letter-spacing:-.01em;text-align:left;padding:18px 20px;cursor:pointer;transition:background .18s,color .18s}
  .phasebtn:last-child{border-right:0}
  .phasebtn .pn{display:block;font-size:11px;letter-spacing:.02em;text-transform:uppercase;opacity:.6;margin-bottom:6px}
  .phasebtn:hover{color:#fff;background:rgba(255,255,255,.04)}
  .phasebtn[aria-selected="true"]{background:rgba(255,255,255,.08);color:#fff;box-shadow:inset 0 -2px 0 #fff}
  .stage-body{display:grid;grid-template-columns:1.3fr .9fr}
  @media(max-width:820px){.stage-body{grid-template-columns:1fr}}
  .options{padding:28px;display:flex;flex-direction:column;gap:14px;border-right:1px solid var(--steel-line)}
  @media(max-width:820px){.options{border-right:0;border-bottom:1px solid var(--steel-line)}}
  .opt{border:1px solid var(--steel-line);border-radius:var(--r-sm);padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:opacity .4s,border-color .4s,background .4s}
  .opt .oname{font-family:var(--sans);font-size:1.18rem;font-weight:500;letter-spacing:-.02em}
  .opt .odesc{font-family:var(--sans);font-size:12.5px;color:var(--on-dark-2);margin-top:4px;letter-spacing:-.01em}
  .opt[data-state="current"]{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.07)}
  .opt[data-state="historical"]{opacity:.38}
  .opt .chip{background:transparent;border-color:var(--steel-line);color:var(--on-dark-2)}
  .opt[data-state="current"] .chip{color:var(--ink);background:#fff;border-color:#fff}
  .sidefact{padding:28px;display:flex;flex-direction:column;gap:18px}
  .factcard{border:1px solid var(--steel-line);border-radius:var(--r-sm);padding:18px 20px}
  .factcard .fk{font-family:var(--sans);font-size:11px;letter-spacing:.02em;text-transform:uppercase;color:var(--on-dark-2);margin-bottom:9px}
  .factcard .fv{font-family:var(--sans);font-size:1.3rem;font-weight:500;letter-spacing:-.02em;transition:color .35s}
  .factcard.revised{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.05)}
  .factcard.revised .fv{color:#fff}
  .revised-flag{font-family:var(--sans);font-size:12px;font-weight:500;letter-spacing:0;color:#fff;margin-top:10px;display:none;align-items:center;gap:7px}
  .factcard.revised .revised-flag{display:flex}
  .stage-caption{font-family:var(--sans);font-size:13.5px;color:var(--on-dark-2);line-height:1.55;padding:22px 28px;border-top:1px solid var(--steel-line);min-height:70px;letter-spacing:-.005em}
  .stage-caption b{color:#fff;font-weight:600}

  /* atoms / passports list */
  /* traceable facts — always-visible cards (no hover popups) */
  .factlist{display:flex;flex-direction:column;gap:12px;margin-top:6px}
  .factrow{display:flex;align-items:center;justify-content:space-between;gap:24px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 26px}
  .factmain{display:flex;flex-direction:column;gap:5px}
  .facttext{font-size:clamp(1.05rem,1.5vw,1.28rem);color:var(--ink);letter-spacing:-.015em;line-height:1.25;margin:0}
  .factsrc{font-family:var(--sans);font-size:14px;color:var(--ink-3);line-height:1.4;margin:0}
  .factrow.is-super .facttext{color:var(--ink-3)}
  .factrow .chip{flex:none;font-size:12px;padding:6px 12px 6px 10px}
  .factlegend{display:flex;flex-wrap:wrap;gap:26px;margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}
  .factlegend>span{display:inline-flex;align-items:center;gap:9px}
  .factlegend em{font-style:normal;font-family:var(--sans);font-size:13px;color:var(--ink-2)}
  @media(max-width:600px){.factrow{flex-direction:column;align-items:flex-start;gap:12px}.factlegend{gap:14px}.factlegend>span{width:100%}}
  .rowset{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
  .atomrow{display:grid;grid-template-columns:96px 1fr auto;gap:20px;align-items:center;padding:22px 22px;border-bottom:1px solid var(--line);position:relative;transition:background .18s}
  .atomrow:last-child{border-bottom:0}
  .atomrow:hover,.atomrow:focus-within{background:var(--panel)}
  .atomrow .idx{font-family:var(--sans);font-size:13px;font-weight:500;color:var(--ink-3);font-variant-numeric:tabular-nums}
  .atomrow .fact{font-family:var(--sans);font-size:1.16rem;font-weight:500;letter-spacing:-.02em}
  .atomrow .hint{font-family:var(--sans);font-size:12px;font-weight:500;letter-spacing:.01em;text-transform:uppercase;color:var(--ink-3);opacity:0;transition:opacity .18s}
  .atomrow:hover .hint,.atomrow:focus-within .hint{opacity:1}
  .atomrow .pop{position:absolute;right:16px;top:calc(100% - 10px);z-index:8;width:min(380px,80vw);background:var(--ink);color:var(--on-dark);border-radius:var(--r-md);opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s,transform .18s,visibility .18s;box-shadow:var(--shadow-lg);overflow:hidden}
  .atomrow:hover .pop,.atomrow:focus-within .pop{opacity:1;visibility:visible;transform:translateY(0)}
  .pop .pp-meta div{background:var(--ink);color:var(--on-dark)}
  .pop .pp-meta{background:rgba(255,255,255,.1)}
  .pop .pp-meta .k{color:var(--on-dark-2)}
  .pop .pp-meta .v{color:var(--on-dark)}
  .pop .pop-top{padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center}
  .pop .pp-tag{color:var(--on-dark-2)}
  .pop .chip{background:transparent;border-color:rgba(255,255,255,.2);color:var(--on-dark-2)}
  .pop .chip.current{background:#fff;color:var(--ink);border-color:#fff}
  @media(max-width:640px){.atomrow{grid-template-columns:76px 1fr}.atomrow .hint{display:none}.atomrow .pop{width:88vw;right:auto;left:12px}}

  /* layers pipeline — cards */
  .layers{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
  .layer{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 22px;min-height:158px;display:flex;flex-direction:column;gap:10px;transition:transform .22s var(--ease),box-shadow .22s}
  .layer:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
  .layer .ln{font-family:var(--sans);font-size:12px;font-weight:600;color:var(--ink);letter-spacing:0;font-variant-numeric:tabular-nums}
  .layer h3{font-size:1.1rem}
  .layer p{font-size:13.5px;color:var(--ink-2);line-height:1.5}
  @media(max-width:820px){.layers{grid-template-columns:1fr 1fr}}
  @media(max-width:480px){.layers{grid-template-columns:1fr}}

  /* brain bento (product · how the brain works) */
  .brain-bento{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
  .bcard{border:1px solid var(--line);border-radius:20px;padding:30px 30px;display:flex;flex-direction:column;min-height:250px;transition:transform .22s var(--ease),box-shadow .22s}
  .bcard:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
  .bcard.wide{grid-column:span 2}
  .bcard.dark{background:var(--ink);color:#fff;border-color:transparent}
  .bcard.light{background:#fff}
  .bcard-top{display:flex;align-items:center;gap:10px}
  .bcard-ic{width:22px;height:22px;flex:none}
  .bcard-ic svg{width:100%;height:100%;display:block}
  .bcard-lab{font-family:var(--sans);font-size:12.5px;font-weight:600;letter-spacing:.02em;text-transform:uppercase;opacity:.65}
  .bcard-h{font-family:var(--sans);font-weight:500;font-size:clamp(1.4rem,2vw,2rem);letter-spacing:-.03em;line-height:1.08;margin-top:auto;padding-top:44px}
  .bcard-p{margin-top:12px;font-size:.98rem;line-height:1.42;opacity:.68;max-width:40ch}
  @media(max-width:820px){.brain-bento{grid-template-columns:1fr 1fr}.bcard.wide{grid-column:span 2}.bcard{min-height:210px}}
  @media(max-width:520px){.brain-bento{grid-template-columns:1fr}.bcard.wide{grid-column:span 1}}

  /* two ways to deliver */
  .deliver{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .duo{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:14px}
  .card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 34px;display:flex;flex-direction:column;gap:14px;transition:transform .22s var(--ease),box-shadow .22s}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
  .card .kicker{font-family:var(--sans);font-size:12.5px;font-weight:600;letter-spacing:.01em;text-transform:uppercase;color:var(--ink-3)}
  .card h3{font-size:1.55rem}
  .card p{color:var(--ink-2);font-size:15.5px}
  .card .linkcta{align-self:flex-start;margin-top:4px}
  .foundation{margin-top:22px;font-family:var(--sans);font-size:14px;letter-spacing:-.01em;color:var(--ink-2);padding:20px 24px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;text-align:center}
  .foundation b{color:var(--ink);font-weight:600}
  @media(max-width:720px){.duo{grid-template-columns:1fr}}

  /* bento mosaic (section 04) */
  .bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(152px,1fr);gap:14px;grid-auto-flow:dense;margin-top:14px}
  .bento-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 32px;display:flex;flex-direction:column;transition:transform .22s var(--ease),box-shadow .22s}
  .bento-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
  .bento-big{grid-column:span 2;grid-row:span 2}
  .bento-big .kicker{font-family:var(--sans);font-size:12.5px;font-weight:600;letter-spacing:.01em;text-transform:uppercase;color:var(--ink-3)}
  .bento-h{font-family:var(--sans);font-weight:500;font-size:clamp(1.9rem,3.4vw,3rem);letter-spacing:-.03em;line-height:1.04;margin-top:16px}
  .bento-big .linkcta{margin-top:auto;align-self:flex-start}
  .bento-tile{justify-content:space-between}
  .bento-w{font-family:var(--sans);font-weight:500;font-size:clamp(1.6rem,2.4vw,2.1rem);letter-spacing:-.03em;line-height:1}
  .bento-tag{font-family:var(--sans);font-size:13px;color:var(--ink-3);letter-spacing:-.005em;margin-top:auto}
  @media(max-width:900px){.bento{grid-template-columns:repeat(2,1fr)}.bento-big{grid-column:span 2;grid-row:span 1}.bento-h{margin-top:12px}}
  @media(max-width:560px){.bento{grid-template-columns:1fr;grid-auto-rows:auto}.bento-big,.bento-tile{grid-column:span 1}.bento-tile{min-height:120px}}

  /* section 04 — cards burst out from centre on scroll (Visto-style) */
  .spread{position:relative;height:260vh}
  .spread-sticky{position:sticky;top:0;height:100vh;overflow:hidden}
  .spread-head{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);text-align:center;z-index:1;width:min(90vw,640px);padding:0 20px}
  .spread-head .sec-index{display:block;margin-bottom:16px}
  .spread-sub{margin-top:18px;color:var(--ink-2);font-size:.98rem;line-height:1.45;max-width:38ch;margin-left:auto;margin-right:auto}
  .spread-card{position:absolute;left:50%;top:50%;z-index:2;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center;will-change:transform}
  .spread-card.big{width:min(240px,68vw);min-height:110px}
  .spread-card.tile{width:min(190px,52vw);min-height:96px}
  .spread-card .kicker{font-family:var(--sans);font-size:12px;font-weight:600;letter-spacing:.01em;text-transform:uppercase;color:var(--ink-3)}
  .spread-card .bento-h{font-family:var(--sans);font-weight:500;font-size:clamp(1rem,1.4vw,1.25rem);letter-spacing:-.02em;line-height:1.15;margin-top:0}
  .spread-card .linkcta{margin-top:auto;align-self:flex-start;padding-top:16px}
  .spread-card .bento-w{font-family:var(--sans);font-weight:500;font-size:clamp(.95rem,1.3vw,1.15rem);letter-spacing:-.02em;line-height:1.15}
  .spread-card .bento-tag{font-family:var(--sans);font-size:12.5px;color:var(--ink-3);margin-top:auto}
  @media(max-width:700px){
    .spread{height:200vh}
    .spread-head{top:9%;transform:translateX(-50%);width:88vw;padding:0 10px}
    .spread-head h2{font-size:clamp(1.5rem,6.6vw,2.1rem)}
    .spread-sub{font-size:.9rem;max-width:34ch}
    .spread-card{width:42vw!important;min-height:76px;padding:14px 14px;border-radius:14px}
    .spread-card.big,.spread-card.tile{width:42vw!important;min-height:76px}
    .spread-card .bento-h{font-size:1rem}
    .spread-card .bento-w{font-size:.92rem}
  }

  /* agents / factories */
  .factories{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:14px}
  .usecap{margin:20px auto 0;text-align:center;font-family:var(--sans);font-size:14px;color:var(--ink-3);max-width:64ch;line-height:1.55}
  /* product 01 scenes */
  .scenelist{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
  .scene{border:1px solid var(--line);border-radius:var(--r-md);background:#fff;padding:26px 24px;display:flex;flex-direction:column;gap:16px}
  .scene-n{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.04em}
  .scene p{font-size:1.02rem;line-height:1.46;color:var(--ink);letter-spacing:-.01em}
  .scenes-close{margin-top:26px;font-family:var(--sans);font-size:1.08rem;font-weight:500;color:var(--ink);text-align:center}
  @media(max-width:760px){.scenelist{grid-template-columns:1fr}}
  /* product 04 work-that-disappears check marker */
  .factcheck{flex:none;width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;line-height:1}
  /* product 06 trust rules (on dark) */
  .trustlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:18px}
  .trustlist li{color:#fff;font-size:clamp(1.05rem,1.7vw,1.32rem);line-height:1.3;letter-spacing:-.015em;padding-left:24px;position:relative}
  .trustlist li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;border-radius:50%;background:#fff}
  /* reality-check band */
  .band.reality{padding:64px 0;background:var(--paper-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .reality-line{max-width:60ch;margin:0 auto;text-align:center;font-size:clamp(1.15rem,2vw,1.5rem);line-height:1.36;letter-spacing:-.02em;color:var(--ink)}
  /* final 3-step path (on dark) */
  .pathsteps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:840px;margin:34px auto 38px;text-align:left}
  .pstep{border-top:1px solid var(--steel-line);padding-top:18px}
  .pstep-n{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--on-dark-2)}
  .pstep h3{margin:12px 0 8px;font-size:1.2rem;color:#fff}
  .pstep p{color:var(--on-dark-2);font-size:.98rem;line-height:1.5;margin:0}
  @media(max-width:760px){.pathsteps{grid-template-columns:1fr;gap:16px}}
  .factory{border:1px solid var(--line);background:#fff;border-radius:var(--r-lg);padding:28px 28px;display:flex;flex-direction:column;gap:12px;transition:transform .22s var(--ease),box-shadow .22s}
  .factory:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
  .factory .flabel{font-family:var(--sans);font-size:12.5px;font-weight:600;letter-spacing:.01em;text-transform:uppercase;color:var(--ink-3)}
  .factory h3{font-size:1.28rem}
  .factory .recipe{font-family:var(--sans);font-size:13px;color:var(--ink-3);line-height:1.7;border-top:1px solid var(--line);padding-top:14px;margin-top:4px;letter-spacing:-.005em}
  .factory .recipe b{color:var(--ink-2);font-weight:600}
  @media(max-width:640px){.factories{grid-template-columns:1fr}}

  /* outcomes */
  .outcomes .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:8px}
  .oc{padding:28px 24px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);display:flex;flex-direction:column;gap:12px;transition:transform .22s var(--ease),box-shadow .22s,background .22s}
  .oc:hover{transform:translateY(-4px);box-shadow:var(--shadow);background:#fff}
  .oc .oclabel{font-family:var(--sans);font-size:12.5px;font-weight:600;letter-spacing:.01em;text-transform:uppercase;color:var(--ink-3)}
  .oc h3{font-size:1.15rem}
  .oc p{font-size:14px;color:var(--ink-2);line-height:1.5}
  @media(max-width:860px){.outcomes .grid{grid-template-columns:1fr 1fr}}
  @media(max-width:520px){.outcomes .grid{grid-template-columns:1fr}}

  /* split statements */
  .split{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
  .split .k{font-family:var(--sans);font-size:12.5px;font-weight:500;letter-spacing:.02em;text-transform:uppercase;color:var(--ink-3)}
  .split>*:last-child{padding-top:37px}
  @media(max-width:820px){.split{grid-template-columns:1fr;gap:24px}.split>*:last-child{padding-top:0}}

  .experience{background:var(--ink);color:var(--on-dark)}
  .experience .k{color:var(--on-dark-2)}
  .experience h2{color:#fff}
  .experience p{color:var(--on-dark-2)}
  .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
  .tags span{font-family:var(--sans);font-size:13px;font-weight:500;letter-spacing:-.01em;color:var(--on-dark);border:1px solid var(--steel-line);border-radius:var(--r-pill);padding:7px 14px}
  .reveal .tags span{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .reveal.in .tags span{opacity:1;transform:none}
  .reveal.in .tags span:nth-child(1){transition-delay:.20s}
  .reveal.in .tags span:nth-child(2){transition-delay:.29s}
  .reveal.in .tags span:nth-child(3){transition-delay:.38s}
  .reveal.in .tags span:nth-child(4){transition-delay:.47s}
  .reveal.in .tags span:nth-child(5){transition-delay:.56s}
  .reveal.in .tags span:nth-child(6){transition-delay:.65s}
  .reveal.in .tags span:nth-child(7){transition-delay:.74s}
  .reveal.in .tags span:nth-child(8){transition-delay:.83s}

  /* marquee ticker (Central-style motion) */
  .marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel)}
  .marquee .mtrack{display:flex;width:max-content;animation:marq 34s linear infinite}
  .marquee .mitem{display:inline-flex;align-items:center;gap:16px;padding:16px 24px;font-size:15px;font-weight:500;letter-spacing:-.01em;color:var(--ink-2);white-space:nowrap}
  .marquee .mitem::after{content:"";width:5px;height:5px;border-radius:50%;background:var(--ink-3);flex:none}
  .marquee:hover .mtrack{animation-play-state:paused}
  @keyframes marq{to{transform:translateX(-50%)}}

  /* final cta — dark */
  .final{background:var(--ink);color:#fff;text-align:center}
  .final .wrap{padding:110px 32px}
  .final h2{color:#fff;font-size:clamp(2.2rem,5vw,3.7rem)}
  .final p{margin:22px auto 34px;color:var(--on-dark-2);max-width:48ch}
  .final .cta{background:#fff;color:var(--ink)}
  .final .cta:hover{background:var(--panel);transform:translateY(-2px)}

  footer{background:var(--ink);color:var(--on-dark-2)}
  footer .wrap{padding:60px 32px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
  footer .brand{color:#fff}
  footer .legal{font-family:var(--sans);font-size:13px;color:var(--on-dark-3);letter-spacing:-.005em;line-height:1.7}
  footer .fcol{font-family:var(--sans);font-size:14px;line-height:2;letter-spacing:-.01em}
  footer .fcol button,footer .fcol a{color:var(--on-dark-2);text-decoration:none;display:block;transition:color .15s;background:none;border:0;padding:0;cursor:pointer;font:inherit;text-align:left}
  footer .fcol button:hover,footer .fcol a:hover{color:#fff}

  /* reveal — fade up */
  .reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
  .reveal.in{opacity:1;transform:none}
  @media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}.reveal .tags span{opacity:1;transform:none}.reveal .chipbox{opacity:1;transform:none}.marquee .mtrack{animation:none}}