/* ---- blueprint tokens: deliberately single-world (a drafting table), both themes get the same sheet */
  :root{
    --paper:#0a1226; --paper2:#0e1830; --paper3:#132042;
    --line:#2f4a78; --line2:#3d5f96;
    --ink:#e8efff; --muted:#8ea3c8; --dim:#5f7499;
    --cyan:#7fd8ff; --signal:#ff6a3d; --signal2:#ffb59e;
    --fd:'Barlow Condensed',Impact,'Arial Narrow',sans-serif;
    --fb:'IBM Plex Sans',system-ui,sans-serif;
    --fm:'IBM Plex Mono',ui-monospace,Menlo,monospace;
    --wrap:1440px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--fb);line-height:1.5;
       min-height:100vh;overflow-x:hidden}
  a{color:inherit}
  button{font:inherit}
  ::selection{background:var(--signal);color:var(--paper)}

  /* drafting grid over the whole sheet */
  .sheet{position:relative;min-height:100vh;
    background-image:
      linear-gradient(var(--paper3) 1px,transparent 1px),
      linear-gradient(90deg,var(--paper3) 1px,transparent 1px),
      linear-gradient(rgba(63,95,150,.14) 1px,transparent 1px),
      linear-gradient(90deg,rgba(63,95,150,.14) 1px,transparent 1px);
    background-size:120px 120px,120px 120px,24px 24px,24px 24px;
    background-position:-1px -1px}
  .sheet::after{content:"";position:absolute;inset:14px;border:1px solid var(--line);pointer-events:none}
  .sheet::before{content:"";position:absolute;inset:22px;border:1px solid rgba(47,74,120,.45);pointer-events:none}

  /* ---- header */
  .head{max-width:var(--wrap);margin:0 auto;padding:44px 48px 8px;display:grid;
        grid-template-columns:auto 1fr auto;gap:32px;align-items:end}
  .mark{font-family:var(--fd);font-weight:700;font-size:40px;letter-spacing:.01em;line-height:.95;text-transform:uppercase}
  .mark small{display:block;font-family:var(--fm);font-weight:400;font-size:11px;letter-spacing:.18em;color:var(--cyan);margin-bottom:8px}
  .thesis{max-width:52ch;font-size:16px;color:var(--muted)}
  .thesis b{color:var(--ink);font-weight:500}
  .rev{font-family:var(--fm);font-size:12px;color:var(--muted);text-align:right;line-height:1.7}
  .rev b{color:var(--ink);font-weight:500}
  .rev .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--signal);
            box-shadow:0 0 0 3px rgba(255,106,61,.2);margin-right:7px;animation:blink 2.4s infinite}
  @keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}

  /* ---- drawing */
  .drawing{max-width:var(--wrap);margin:0 auto;padding:8px 48px 0;position:relative}
  svg.bp{width:100%;height:auto;display:block;overflow:visible}
  .bp text{font-family:var(--fm);fill:var(--muted);font-size:11px}
  .bp .layer-label{fill:var(--dim);font-size:11px;letter-spacing:.2em}
  .bp .edge{fill:none;stroke:var(--line2);stroke-width:1.2;opacity:.9;transition:stroke .25s,opacity .25s}
  .bp .edge.lit{stroke:var(--cyan);stroke-width:1.6}
  .bp .edge.off{opacity:.25}
  .bp .pulse{fill:var(--signal);filter:url(#glow)}
  .bp .node{cursor:pointer;outline:none}
  .bp .node rect.box{fill:var(--paper2);stroke:var(--line2);stroke-width:1.2;transition:stroke .2s,fill .2s}
  .bp .node:hover rect.box,.bp .node:focus-visible rect.box,.bp .node.active rect.box{stroke:var(--cyan);fill:var(--paper3)}
  .bp .node.engine rect.box{fill:url(#hatch);stroke:var(--line2)}
  .bp .node.engine:hover rect.box,.bp .node.engine.active rect.box{stroke:var(--cyan)}
  .bp .node .title{font-family:var(--fd);font-weight:600;font-size:17px;fill:var(--ink);letter-spacing:.02em;text-transform:uppercase}
  .bp .node .sub{fill:var(--muted);font-size:11px}
  .bp .node .reading{fill:var(--cyan);font-size:11.5px;font-weight:500}
  .bp .node .idx{fill:var(--dim);font-size:10px;letter-spacing:.14em}
  .bp .node .seal{font-family:var(--fd);font-weight:700;font-size:10px;letter-spacing:.2em;fill:var(--signal)}
  .bp .node .sealbox{fill:var(--paper);stroke:var(--signal);stroke-width:1}
  .bp .port{fill:var(--paper);stroke:var(--line2);stroke-width:1.2}
  .bp .node:hover .port,.bp .node.active .port{stroke:var(--cyan)}
  .bp .dim-line{stroke:var(--line);stroke-width:1;stroke-dasharray:2 4}
  .bp .dim-text{fill:var(--dim);font-size:10px;letter-spacing:.12em}
  .bp .node.off{opacity:.35}
  /* ---- affordance: what opens vs what only explains */
  .bp .node.info{cursor:help}
  .bp .node.info rect.box{stroke:var(--line)}
  .bp .node.product rect.box{stroke:rgba(127,216,255,.55);stroke-width:1.4}
  .bp .node.product{transition:transform .18s}
  .bp .node.product:hover rect.box,.bp .node.product:focus-visible rect.box{stroke:var(--cyan);stroke-width:2;filter:drop-shadow(0 0 10px rgba(127,216,255,.35))}
  .bp .cta-box{fill:transparent;stroke:var(--signal);stroke-width:1.2;transition:fill .18s}
  .bp .cta-text{font-family:var(--fd);font-weight:700;font-size:12px;letter-spacing:.14em;fill:var(--signal);transition:fill .18s}
  .bp .node.product:hover .cta-box,.bp .node.product:focus-visible .cta-box,.bp .node.product.active .cta-box,.bp .node.ping .cta-box{fill:var(--signal)}
  .bp .node.product:hover .cta-text,.bp .node.product:focus-visible .cta-text,.bp .node.product.active .cta-text,.bp .node.ping .cta-text{fill:#1a0a05}
  .bp .node.ping rect.box{stroke:var(--cyan);animation:ping 1.4s ease-out}
  @keyframes ping{0%{filter:drop-shadow(0 0 0 rgba(127,216,255,0))}35%{filter:drop-shadow(0 0 14px rgba(127,216,255,.6))}100%{filter:drop-shadow(0 0 0 rgba(127,216,255,0))}}
  .bp .layer-hint{fill:var(--signal);letter-spacing:.14em}
  .bp .node:focus-visible rect.box{outline:none;stroke:var(--cyan);stroke-width:2}

  /* private products: same door, but it says it is locked before you walk into it */
  .bp .cta.locked .cta-box{stroke:var(--cyan);stroke-dasharray:3 2}
  .bp .cta.locked .cta-text{fill:var(--cyan)}
  .bp .cta-lock{fill:none;stroke:var(--cyan);stroke-width:1.3}
  .bp .node.product.locked:hover .cta-box,.bp .node.product.locked.active .cta-box,.bp .node.locked.ping .cta-box{fill:var(--cyan)}
  .bp .node.product.locked:hover .cta-text,.bp .node.product.locked.active .cta-text,.bp .node.locked.ping .cta-text{fill:var(--paper)}
  .bp .node.product.locked:hover .cta-lock,.bp .node.product.locked.active .cta-lock,.bp .node.locked.ping .cta-lock{stroke:var(--paper)}
  .try .chip.locked{border-style:dashed;border-color:var(--cyan)}
  .try .chip.locked::before{content:"";display:inline-block;width:9px;height:10px;margin-right:7px;vertical-align:-1px;
    background:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 13'%3E%3Cpath d='M3 6V4.5a3 3 0 0 1 6 0V6M1.5 6h9v6h-9z' fill='none' stroke='%237fd8ff' stroke-width='1.4'/%3E%3C/svg%3E")}
  .try .chip.locked::after{color:var(--cyan)}
  .try .chip.locked:hover{background:var(--cyan);color:var(--paper)}
  .access{border:1px dashed var(--cyan);padding:14px 16px;margin-bottom:22px;background:rgba(127,216,255,.05)}
  .access .badge{font-family:var(--fm);font-size:11px;letter-spacing:.18em;color:var(--cyan)}
  .access p{margin:6px 0 0;color:var(--ink);font-size:14px}

  .lede{display:flex;flex-direction:column;gap:14px}
  .try{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
  .try .k{font-family:var(--fm);font-size:11px;letter-spacing:.16em;color:var(--dim);text-transform:uppercase;margin-right:4px}
  .try .chip{background:transparent;border:1px solid var(--signal);color:var(--ink);padding:6px 12px;font-family:var(--fd);font-weight:600;
             font-size:14px;letter-spacing:.06em;text-transform:uppercase;cursor:pointer;transition:background .15s,color .15s}
  .try .chip::after{content:" ›";color:var(--signal)}
  .try .chip:hover,.try .chip:focus-visible{background:var(--signal);color:#1a0a05;outline:none}
  .try .chip:hover::after,.try .chip:focus-visible::after{color:#1a0a05}

  @media (prefers-reduced-motion:reduce){.bp .pulse{display:none}.rev .dot{animation:none}.bp .node.ping rect.box{animation:none}}

  /* ---- index */
  .foot{max-width:var(--wrap);margin:0 auto;padding:18px 48px 56px;display:grid;
        grid-template-columns:1fr auto;gap:28px;align-items:end}
  .index{display:flex;flex-wrap:wrap;gap:10px 22px;font-family:var(--fm);font-size:12px;color:var(--muted)}
  .index a{text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:2px;transition:color .2s,border-color .2s}
  .index a:hover{color:var(--cyan);border-color:var(--cyan)}
  .index .k{color:var(--dim);letter-spacing:.16em;margin-right:6px}

  /* ---- exhibit drawer */
  .drawer{position:fixed;top:0;right:0;bottom:0;width:min(520px,100%);background:var(--paper2);
          border-left:1px solid var(--line2);transform:translateX(102%);transition:transform .38s cubic-bezier(.2,.7,.2,1);
          z-index:40;display:flex;flex-direction:column;box-shadow:-30px 0 60px rgba(0,0,0,.35)}
  .drawer.open{transform:none}
  .drawer-head{padding:26px 30px 18px;border-bottom:1px solid var(--line)}
  .drawer .idx{font-family:var(--fm);font-size:11px;letter-spacing:.2em;color:var(--cyan)}
  .drawer h2{font-family:var(--fd);font-weight:700;font-size:34px;letter-spacing:.01em;margin:6px 0 4px;text-transform:uppercase;line-height:1}
  .drawer .lead{color:var(--muted);margin:0;font-size:15px}
  .drawer-body{padding:20px 30px 30px;overflow:auto;flex:1}
  .readings{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin-bottom:22px}
  .reading{border:1px solid var(--line);padding:10px 12px;background:var(--paper)}
  .reading .v{font-family:var(--fm);font-size:20px;color:var(--cyan);font-variant-numeric:tabular-nums;line-height:1.1}
  .reading .k{font-size:11px;color:var(--muted);margin-top:4px}
  .act{border:1px solid var(--line2);background:var(--paper);padding:16px;margin-bottom:22px}
  .act h3{margin:0 0 10px;font-family:var(--fm);font-weight:500;font-size:11px;letter-spacing:.18em;color:var(--dim);text-transform:uppercase}
  .act .row{display:flex;gap:8px}
  .act input{flex:1;background:var(--paper2);border:1px solid var(--line2);color:var(--ink);padding:10px 12px;font-family:var(--fm);font-size:13px;min-width:0}
  .act input:focus{outline:2px solid var(--cyan);outline-offset:1px}
  .btn{background:var(--signal);color:#1a0a05;border:0;padding:10px 16px;font-family:var(--fd);font-weight:700;font-size:15px;letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
  .btn:hover{background:var(--signal2)}
  .btn.ghost{background:none;color:var(--ink);border:1px solid var(--line2)}
  .btn.ghost:hover{border-color:var(--cyan);color:var(--cyan)}
  .list{list-style:none;margin:0;padding:0}
  .list li{padding:10px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:baseline;font-size:14px}
  .list li:first-child{border-top:0}
  .list .n{font-family:var(--fm);font-size:11px;color:var(--dim)}
  .list .m{font-family:var(--fm);font-size:11px;color:var(--muted);white-space:nowrap}
  .list a{text-decoration:none}
  .list a:hover{color:var(--cyan)}
  .verdict{margin-top:14px;border:1px solid var(--line2);padding:14px;font-family:var(--fm);font-size:12.5px;line-height:1.7;display:none}
  .verdict.show{display:block}
  .verdict .tier{font-family:var(--fd);font-weight:700;font-size:22px;letter-spacing:.04em;text-transform:uppercase;color:var(--cyan)}
  .verdict .sample{display:inline-block;border:1px solid var(--signal);color:var(--signal);padding:1px 7px;font-size:10px;letter-spacing:.18em;margin-bottom:8px}
  .mrz{margin-top:10px;padding-top:8px;border-top:1px dashed var(--line2);color:var(--dim);letter-spacing:.08em;word-break:break-all;font-size:11px}
  .goto{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
  .goto a{text-decoration:none}
  .close{position:absolute;top:18px;right:18px;background:none;border:1px solid var(--line2);color:var(--muted);
         width:36px;height:36px;font-family:var(--fm);cursor:pointer}
  .close:hover{color:var(--cyan);border-color:var(--cyan)}
  .scrim{position:fixed;inset:0;background:rgba(4,8,20,.45);opacity:0;pointer-events:none;transition:opacity .3s;z-index:30}
  .scrim.show{opacity:1;pointer-events:auto}

  /* ---- text sheet (manifesto): same drafting table, a second sheet */
  .why{display:flex;gap:18px;flex-wrap:wrap}
  .why a{font-family:var(--fm);font-size:12px;letter-spacing:.16em;color:var(--cyan);text-decoration:none;border-bottom:1px solid rgba(127,216,255,.35);padding-bottom:2px}
  .why a:hover{border-color:var(--cyan)}
  .sheet2{max-width:var(--wrap);margin:34px auto 0;padding:56px 48px 30px;display:grid;grid-template-columns:220px minmax(0,1fr);gap:40px;
          border-top:1px solid var(--line);position:relative;scroll-margin-top:24px}
  .sheet2::before{content:"";position:absolute;left:48px;right:48px;top:-1px;height:1px;background:linear-gradient(90deg,var(--signal) 0 64px,transparent 64px)}
  .s2-rail{display:flex;flex-direction:column;gap:10px;font-family:var(--fm);font-size:11px;letter-spacing:.18em}
  .s2-sheet{color:var(--dim)}
  .s2-kicker{color:var(--signal)}
  .s2-main{max-width:760px}
  .sheet2 h2{font-family:var(--fd);font-weight:700;font-size:clamp(34px,4.6vw,58px);line-height:.98;letter-spacing:.005em;text-transform:uppercase;margin:0 0 26px}
  .s2-main > p.s2-lead{font-size:21px;line-height:1.5;color:var(--ink);margin:0 0 22px}
  .s2-main > p{font-size:16.5px;line-height:1.7;color:var(--muted);margin:0 0 18px}
  .s2-spec{margin:34px 0 30px;border:1px solid var(--line2);background:var(--paper2)}
  .s2-spec div{display:grid;grid-template-columns:176px 1fr;border-top:1px solid var(--line)}
  .s2-spec div:first-child{border-top:0}
  .s2-spec dt{padding:12px 16px;font-family:var(--fd);font-weight:700;font-size:16px;letter-spacing:.12em;color:var(--cyan);border-right:1px solid var(--line)}
  .s2-spec dd{margin:0;padding:12px 16px;font-size:14.5px;color:var(--ink)}
  .sheet2 .s2-close{font-family:var(--fd);font-weight:600;font-size:26px;line-height:1.25;color:var(--ink);text-transform:none;margin:8px 0 18px;
                    border-left:3px solid var(--signal);padding-left:18px}
  .s2-main > p.s2-stamp{font-family:var(--fm);font-size:12px;color:var(--muted);margin:0 0 22px}
  .s2-stamp .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--signal);margin-right:9px;box-shadow:0 0 0 3px rgba(255,106,61,.2)}
  .s2-links{display:flex;flex-wrap:wrap;gap:10px}
  .s2-links a{font-family:var(--fm);font-size:12px;color:var(--ink);text-decoration:none;border:1px solid var(--line2);padding:7px 12px}
  .s2-links a:hover{border-color:var(--cyan);color:var(--cyan)}
  .s2-links a:last-child{border-color:var(--signal);color:var(--signal)}

  /* ---- narrow */
  @media (max-width:900px){
    .head{grid-template-columns:1fr;padding:34px 22px 6px;gap:14px}
    .rev{text-align:left}
    .drawing{padding:6px 14px 0}
    .foot{grid-template-columns:1fr;padding:14px 22px 44px}
    .drawer{width:100%}
    .try{display:none}
    .sheet2{grid-template-columns:1fr;gap:14px;padding:40px 22px 20px}
    .sheet2::before{left:22px;right:22px}
    .s2-rail{flex-direction:row;gap:16px}
    .s2-main > p.s2-lead{font-size:18px}
    .s2-spec div{grid-template-columns:1fr}
    .s2-spec dt{border-right:0;padding-bottom:0}            /* products lead the drawing on a phone; chips would repeat them */
  }

/* ---- header: mark and live line on top, one menu line under them */
.head{grid-template-columns:1fr auto;align-items:end;gap:18px 32px;padding-bottom:0}
.menu{grid-column:1 / -1;display:flex;align-items:center;gap:22px;flex-wrap:nowrap;
      padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.menu::-webkit-scrollbar{display:none}
.menu .try{flex-wrap:nowrap;flex:0 0 auto}
.menu .try .k{white-space:nowrap}
.menu .try .chip{white-space:nowrap}
.menu .why{margin-left:auto;flex:0 0 auto;flex-wrap:nowrap}
.menu .why a{white-space:nowrap}
.foot{grid-template-columns:1fr}
@media (max-width:900px){
  .head{grid-template-columns:1fr}
  .menu{border-bottom:0;padding:8px 0 0}
  .menu .why{margin-left:0}
}
@media (max-width:1320px){ .menu .try .k{display:none} }
@media (max-width:1120px){ .menu{gap:14px} .menu .try{gap:6px} .menu .try .chip{font-size:12.5px;padding:5px 9px;letter-spacing:.04em} .menu .why a{letter-spacing:.08em} }
@media (max-width:1000px){ .menu .try{display:none} .menu .why{margin-left:0} }

/* navigate mode: info nodes explain on hover only; products are links */
.bp a { cursor: pointer; }
.bp a:focus { outline: none; }
.bp a:focus-visible .node rect.box { stroke: var(--cyan); stroke-width: 2; }
.bp .node.info:not([tabindex]) { cursor: default; }
.try a.chip { text-decoration: none; display: inline-block; }

/* ---- access request page */
.access-page{max-width:640px;margin:0 auto;padding:56px 24px 72px;position:relative;z-index:1}
.access-page .back{font-family:var(--fm);font-size:12px;color:var(--muted);text-decoration:none;letter-spacing:.08em}
.access-page .idx{font-family:var(--fm);font-size:11px;letter-spacing:.2em;color:var(--cyan);margin-top:30px}
.access-page h1{font-family:var(--fd);font-weight:700;font-size:48px;line-height:1;text-transform:uppercase;margin:8px 0 12px}
.access-page .lead{color:var(--muted);font-size:17px;margin:0 0 22px}
.req label{display:block;font-family:var(--fm);font-size:11px;letter-spacing:.14em;color:var(--dim);text-transform:uppercase;margin:0 0 14px}
.req input,.req textarea{display:block;width:100%;margin-top:6px;background:var(--paper2);border:1px solid var(--line2);color:var(--ink);
  padding:10px 12px;font-family:var(--fb);font-size:15px;text-transform:none;letter-spacing:0}
.req input:focus,.req textarea:focus{outline:2px solid var(--cyan);outline-offset:1px}
.req .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.req .note{color:var(--muted);font-size:13px;margin:12px 0 0}
.req button[disabled]{opacity:.6;cursor:default}

/* product description on /access/<id> */
.access-page.wide{max-width:780px}
.access-page .goto .btn{text-decoration:none}
.about{margin:44px 0 0;padding-top:22px;border-top:1px solid var(--line)}
.about .idx{margin-top:0}
.about h2{font-family:var(--fd);font-weight:700;font-size:30px;line-height:1.05;text-transform:uppercase;letter-spacing:.02em;margin:6px 0 14px;text-wrap:balance}
.about p{font-size:16px;line-height:1.7;color:var(--muted);margin:0 0 14px}
.about p.about-lead{font-size:18.5px;color:var(--ink)}
.about ul{margin:0 0 14px;padding-left:20px;color:var(--ink);font-size:15.5px;line-height:1.65}
.about ul li{margin-bottom:6px}
.about .steps{list-style:none;counter-reset:st;margin:8px 0 14px;padding:0;display:grid;gap:10px}
.about .steps li{counter-increment:st;display:grid;grid-template-columns:44px 1fr;column-gap:12px;align-items:baseline;
  border:1px solid var(--line2);background:var(--paper2);padding:12px 14px}
.about .steps li::before{content:counter(st,decimal-leading-zero);grid-row:span 2;font-family:var(--fm);font-size:13px;color:var(--signal)}
.about .steps b{font-family:var(--fd);font-weight:700;font-size:17px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink)}
.about .steps span{color:var(--muted);font-size:14.5px;line-height:1.6}
.about .s2-spec{margin:18px 0 14px}
.about p.about-note{font-family:var(--fm);font-size:12.5px;color:var(--dim);border-left:2px solid var(--signal);padding-left:12px}
.access-page .access{margin-top:44px}
@media (max-width:620px){.about .s2-spec div{grid-template-columns:1fr}.about .s2-spec dt{border-right:0;padding-bottom:0}.access-page h1{font-size:38px}}