/*
 * The hidden attribute must actually hide.
 *
 * Any element with an explicit `display` silently outranks `[hidden]`, so a
 * flex panel toggled with `el.hidden = true` stays on screen. This has now
 * bitten three separate components; one rule at the top ends the whole class
 * of bug rather than patching each selector as it surfaces.
 */
[hidden]{display:none !important}

  :root{
    --bg:#0e1114; --panel:#161b20; --panel-2:#1c232a; --line:#252e36; --line-2:#33414d;
    --ink:#e6ebef; --ink-2:#98a6b2; --ink-3:#697782;
    --accent:#d8a657; --accent-dim:#3a2e16; --agent:#7fb3a8; --ok:#63c48a; --stop:#e07a6c;
    --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
    --body:"Public Sans",system-ui,-apple-system,sans-serif;
    /* Cut corners, like a facet or a chisel: the display face for names and headings. */
    --display:"Chakra Petch","Public Sans",system-ui,sans-serif;
  }
  *{box-sizing:border-box}
  html,body{height:100%}
  body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 var(--body);overflow:auto}

  .app{display:grid;grid-template-columns:216px 1fr 430px;height:100vh}
  @media(max-width:1100px){.app{grid-template-columns:1fr 400px}.rail{display:none}}
  @media(max-width:900px){.app{grid-template-columns:1fr;grid-template-rows:1fr 46vh}}

  /* conversation rail */
  .rail{background:#11151a;border-right:1px solid var(--line);display:flex;flex-direction:column;
        min-height:0;overflow:hidden}
  .rail .top{padding:12px 12px 10px;border-bottom:1px solid var(--line);display:flex;gap:8px;align-items:center}
  .newbtn{flex:1;background:var(--accent);color:#1a1205;border:0;border-radius:6px;padding:7px 10px;
          font:600 12.5px var(--body);cursor:pointer}
  .newbtn:hover{filter:brightness(1.08)}
  .convs{flex:1;overflow-y:auto;padding:8px;display:flex;flex-direction:column;gap:3px;min-height:0}
  .conv{display:flex;align-items:center;gap:6px;border-radius:6px;padding:7px 8px;cursor:pointer;
        border:1px solid transparent}
  .conv:hover{background:var(--panel-2)}
  .conv.on{background:var(--panel-2);border-color:var(--line-2)}
  .conv .t{flex:1;min-width:0;font-size:12.5px;color:var(--ink-2);overflow:hidden;
           text-overflow:ellipsis;white-space:nowrap}
  .conv.on .t{color:var(--ink)}
  .conv .n{font:10px var(--mono);color:var(--ink-3);flex:0 0 auto}
  .conv .x{opacity:0;background:none;border:0;color:var(--ink-3);cursor:pointer;font-size:15px;
           line-height:1;padding:0 2px;flex:0 0 auto}
  .conv:hover .x{opacity:1}
  .conv .x:hover{color:var(--stop)}
  .conv input{flex:1;min-width:0;background:var(--bg);color:var(--ink);border:1px solid var(--accent);
              border-radius:4px;padding:3px 5px;font:12.5px var(--body)}
  .railfoot{padding:9px 12px;border-top:1px solid var(--line);font:10px var(--mono);color:var(--ink-3)}

  .stage{position:relative;background:radial-gradient(ellipse at 50% 42%,#181f26 0%,#0e1114 72%)}
  canvas{display:block;width:100%;height:100%}
  .mark{position:absolute;left:16px;top:14px;font:500 11px/1 var(--mono);letter-spacing:.15em;
        text-transform:uppercase;color:var(--ink-3)}
  .mark b{color:var(--accent);font-weight:500}
  .vp{position:absolute;right:14px;top:118px;display:flex;flex-direction:column;gap:5px;z-index:2}
  .vp > button{width:32px;height:32px;display:grid;place-items:center;cursor:pointer;
             background:rgba(22,27,32,.82);color:var(--ink-2);border:1px solid var(--line-2);
             border-radius:6px;backdrop-filter:blur(6px);transition:color .12s,border-color .12s}
  .vp > button:hover{color:var(--ink);border-color:var(--ink-3)}
  .vp > button.on{color:var(--accent);border-color:var(--accent)}
  .vp .gap{height:6px}
  /* The triangle count, always on, exact: the number of triangles in the
     mesh being looked at, and nothing else. */
  .tricount{position:absolute;left:16px;bottom:14px;font:500 11px var(--mono);
            letter-spacing:.08em;color:var(--ink-3);pointer-events:none}
  .tricount:empty{display:none}
  .vp > button svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.7;fill:none;
          stroke-linecap:round;stroke-linejoin:round}
  .lightpanel{position:absolute;right:40px;bottom:0;width:216px;padding:11px;display:flex;
              flex-direction:column;gap:8px;border-radius:8px;border:1px solid var(--line-2);
              background:rgba(20,25,30,.94);backdrop-filter:blur(8px)}
  .lp-h{font:600 9.5px/1 ui-monospace,monospace;letter-spacing:.11em;text-transform:uppercase;
        color:var(--ink-3)}
  .lp-read{font:11px/1 ui-monospace,monospace;color:var(--ink-2);text-align:center;
           font-variant-numeric:tabular-nums}
  .lp-presets{display:grid;grid-template-columns:1fr 1fr;gap:5px}
  .lp-modes{display:grid;grid-template-columns:1fr 1fr 1fr;gap:5px}
  .lp-presets button,.lp-modes button{min-height:29px;padding:0 7px;display:grid;
      place-items:center;white-space:nowrap;font-size:11px;line-height:1;cursor:pointer;
      border-radius:5px;background:transparent;color:var(--ink-2);border:1px solid var(--line-2);
      transition:color .12s,border-color .12s}
  .lp-presets button:hover,.lp-modes button:hover{color:var(--ink);border-color:var(--ink-3)}
  .lp-presets button.on,.lp-modes button.on{color:var(--accent);border-color:var(--accent)}
  .lp-adv{padding:4px 0;font:600 9.5px/1 ui-monospace,monospace;letter-spacing:.09em;
          text-transform:uppercase;text-align:left;cursor:pointer;background:none;
          border:none;border-top:1px solid var(--line-2);color:var(--ink-3)}
  .lp-adv:hover{color:var(--ink-2)}
  .lp-adv::before{content:"\25B8";display:inline-block;margin-right:5px;transition:transform .12s}
  .lp-adv[aria-expanded="true"]::before{transform:rotate(90deg)}
  .lp-body{display:flex;flex-direction:column;gap:7px}
  .step{opacity:.72;padding-left:10px}
  .step b{color:var(--accent);font-weight:600}
  .props .q{font:600 11px/1.35 var(--body);color:var(--ink);margin:2px 0 7px;
            text-transform:none;letter-spacing:0}
  .props .grp+.grp{margin-top:12px;padding-top:11px;border-top:1px solid var(--line-2)}
  /* Stop inverts the button. Setting only the colour left accent text on an
     accent background, which is a blank orange rectangle. */
  .send.stop{background:transparent;color:var(--accent);
             border:1px solid var(--accent);padding:10px 14px}
  .lp-ctl{display:grid;grid-template-columns:46px 1fr 20px;align-items:center;gap:6px;
          font-size:10.5px;color:var(--ink-3)}
  .lp-ctl.wide{grid-template-columns:46px 1fr}
  .lp-ctl input[type=range]{-webkit-appearance:none;appearance:none;background:transparent;
                            width:100%;height:14px;cursor:ew-resize;margin:0}
  .lp-ctl input[type=range]::-webkit-slider-runnable-track{height:3px;border-radius:2px;
                                                           background:var(--line-2)}
  .lp-ctl input[type=range]::-moz-range-track{height:3px;border-radius:2px;background:var(--line-2)}
  .lp-ctl input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;
      width:11px;height:11px;border-radius:50%;background:var(--ink-2);
      border:2px solid var(--panel);margin-top:-4px}
  .lp-ctl input[type=range]::-moz-range-thumb{width:11px;height:11px;border-radius:50%;
      background:var(--ink-2);border:2px solid var(--panel)}
  .lp-ctl input[type=color]{-webkit-appearance:none;appearance:none;width:20px;height:20px;
      padding:0;cursor:pointer;background:none;border:1px solid var(--line-2);border-radius:4px}
  .lp-ctl input[type=color]::-webkit-color-swatch-wrapper{padding:2px}
  .lp-ctl input[type=color]::-webkit-color-swatch{border:none;border-radius:2px}
  .lp-ctl .lp-toggle{padding:3px 0;font-size:10px;cursor:pointer;border-radius:4px;
      background:transparent;color:var(--ink-3);border:1px solid var(--line-2)}
  .lp-ctl .lp-toggle.on{color:var(--accent);border-color:var(--accent)}
  .sunpad{width:104px;height:104px;margin:0 auto;border-radius:50%;position:relative;
          cursor:crosshair;touch-action:none;border:1px solid var(--line-2);
          background:radial-gradient(circle at 50% 50%,rgba(58,68,78,.92) 0%,rgba(22,27,32,.92) 74%)}
  .lp-n{position:absolute;top:2px;left:50%;transform:translateX(-50%);pointer-events:none;
        font:600 8px/1 ui-monospace,monospace;letter-spacing:.08em;color:var(--ink-3)}
  .sunpad::after{content:"";position:absolute;inset:26%;border-radius:50%;
                 border:1px dashed var(--line-2);opacity:.55}
  .sundot{position:absolute;width:13px;height:13px;margin:-7px 0 0 -7px;border-radius:50%;
          background:#ffdca3;box-shadow:0 0 9px 2px rgba(255,213,138,.55);pointer-events:none}
  .zoomwrap{position:relative;height:104px;width:32px;overflow:hidden;
            background:rgba(22,27,32,.82);border:1px solid var(--line-2);border-radius:6px;
            backdrop-filter:blur(6px)}
  .zoomwrap input{-webkit-appearance:none;appearance:none;background:transparent;
                  position:absolute;left:50%;top:50%;width:86px;height:18px;margin:0;
                  transform:translate(-50%,-50%) rotate(-90deg);cursor:ns-resize}
  .zoomwrap input::-webkit-slider-runnable-track{height:3px;border-radius:2px;background:var(--line-2)}
  .zoomwrap input::-moz-range-track{height:3px;border-radius:2px;background:var(--line-2)}
  .zoomwrap input::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:13px;height:13px;
      border-radius:50%;background:var(--ink-2);border:2px solid var(--panel);margin-top:-5px}
  .zoomwrap input::-moz-range-thumb{width:13px;height:13px;border-radius:50%;
      background:var(--ink-2);border:2px solid var(--panel)}
  .zoomwrap input:hover::-webkit-slider-thumb{background:var(--accent)}
  .zoomwrap input:hover::-moz-range-thumb{background:var(--accent)}

  .stats{position:absolute;left:16px;bottom:14px;font:11px/1.7 var(--mono);color:var(--ink-3)}
  .stats b{color:var(--ink-2);font-weight:500}
  .empty{position:absolute;inset:0;display:grid;place-content:center;text-align:center;gap:10px;
         color:var(--ink-3);padding:40px}
  .empty h2{font-size:19px;font-weight:600;color:var(--ink-2);margin:0}
  .empty p{margin:0;max-width:38ch;font-size:13px}

  .side{background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;
        min-width:0;min-height:0;overflow:hidden}
  .app>*{min-height:0;min-width:0}
  .head{padding:13px 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;
        justify-content:space-between;gap:10px}
  .head h2{margin:0;font:500 10px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
  select,.mini{background:var(--panel-2);color:var(--ink-2);border:1px solid var(--line-2);
        border-radius:5px;padding:4px 9px;font:500 11.5px var(--body);cursor:pointer}
  .mini:hover:not(:disabled){color:var(--ink);border-color:var(--ink-3)}
  .mini:disabled{opacity:.4;cursor:not-allowed}

  .log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:14px;min-height:0}
  .msg{display:flex;flex-direction:column;gap:5px}
  .who{font:500 9.5px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3)}
  .msg.you .who{color:var(--accent)}
  .msg.agent .who{color:var(--agent)}
  .body-txt{white-space:pre-wrap;font-size:13.5px;color:var(--ink)}
  .msg.you .body-txt{color:var(--ink-2)}
  /* Rendered markdown. Blocks own their spacing so nothing double-gaps
     against the pre-wrap whitespace of the surrounding bubble. */
  .msg.agent .body-txt{white-space:normal;line-height:1.5}
  .body-txt>*{margin:0}
  .body-txt>*+*{margin-top:.55em}
  .body-txt h4{font-size:13.5px;font-weight:650;color:var(--ink);letter-spacing:.005em}
  .body-txt ul,.body-txt ol{padding-left:1.15em;display:flex;flex-direction:column;gap:.3em}
  .body-txt li{margin:0}
  .body-txt li::marker{color:var(--ink-3)}
  .body-txt strong{font-weight:650;color:#fff}
  .body-txt em{font-style:italic;color:var(--ink)}
  .body-txt code{font:12px ui-monospace,SFMono-Regular,Menlo,monospace;
                 background:var(--panel-2);border-radius:4px;padding:1px 4px;color:var(--ink)}
  .body-txt pre{background:var(--panel-2);border:1px solid var(--line-2);border-radius:6px;
                padding:9px 11px;overflow-x:auto}
  .body-txt pre code{background:none;padding:0;font-size:11.5px;line-height:1.45;
                     white-space:pre;display:block}
  .tool{display:flex;align-items:center;gap:8px;font:11.5px var(--mono);color:var(--ink-3);
        background:var(--panel-2);border-left:2px solid var(--accent);border-radius:0 4px 4px 0;padding:6px 10px}
  .tool b{color:var(--accent);font-weight:500}
  .err{color:var(--stop);font-size:13px;border-left:2px solid var(--stop);padding-left:10px}
  .think{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--agent);
         animation:p 1.1s ease-in-out infinite}
  @keyframes p{0%,100%{opacity:.25}50%{opacity:1}}
  @media (prefers-reduced-motion:reduce){.think{animation:none;opacity:.7}}

  /* versions */
  .vers{display:flex;gap:5px;overflow-x:auto;padding:9px 14px;border-bottom:1px solid var(--line);
        scrollbar-width:thin}
  .ver{flex:0 0 auto;font:500 11px var(--mono);color:var(--ink-3);background:var(--panel-2);
       border:1px solid var(--line-2);border-radius:20px;padding:3px 10px;cursor:pointer;white-space:nowrap}
  .ver:hover{color:var(--ink);border-color:var(--ink-3)}
  .ver.on{color:var(--accent);border-color:var(--accent);background:var(--accent-dim)}

  /* proposals */
  .props{background:var(--panel-2);border:1px solid var(--line-2);border-radius:8px;padding:12px 13px;
         display:flex;flex-direction:column;gap:9px}
  .props h3{margin:0;font:500 9.5px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3)}
  .opt{display:flex;gap:9px;align-items:flex-start;cursor:pointer;padding:5px 6px;border-radius:5px}
  .opt:hover{background:rgba(216,166,87,.07)}
  .opt input{margin:3px 0 0;accent-color:var(--accent);flex:0 0 auto;width:15px;height:15px;cursor:pointer}
  .opt .lab{font-size:13px;font-weight:500;color:var(--ink)}
  .opt .det{font-size:12px;color:var(--ink-3);margin-top:1px}
  .props .go{align-self:flex-start;background:var(--accent);color:#1a1205;border:0;border-radius:6px;
             padding:7px 13px;font:600 12.5px var(--body);cursor:pointer}
  .props .go:disabled{background:var(--line-2);color:var(--ink-3);cursor:not-allowed}
  .props.done{opacity:.5;pointer-events:none}

  /* Ask, and tell. The browser's own confirm and alert are the one place a
     careful interface suddenly looks like someone else's. */
  .modal{border:1px solid var(--line-2);border-radius:10px;background:var(--panel);
         color:var(--ink);padding:0;max-width:380px;width:calc(100% - 32px);
         box-shadow:0 18px 50px rgba(0,0,0,.55)}
  .modal::backdrop{background:rgba(6,9,12,.62);backdrop-filter:blur(2px)}
  .modal form{display:flex;flex-direction:column;gap:11px;padding:17px 18px 15px;margin:0}
  .modal h3{margin:0;font:500 9.5px/1 var(--mono);letter-spacing:.13em;
            text-transform:uppercase;color:var(--ink-3)}
  .modal p{margin:0;font:400 13.5px/1.5 var(--body);color:var(--ink-2)}
  .modal p b{color:var(--ink);font-weight:600}
  .modal .row{display:flex;gap:8px;justify-content:flex-end;margin-top:3px}
  .modal button{border-radius:6px;padding:7px 14px;font:600 12.5px var(--body);cursor:pointer}
  .modal .ghost{background:transparent;color:var(--ink-2);border:1px solid var(--line-2)}
  .modal .ghost:hover{color:var(--ink);border-color:var(--ink-3)}
  .modal .go{background:var(--accent);color:#1a1205;border:0}
  .modal .danger{background:var(--stop);color:#1a0d0a;border:0}
  .modal button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

  .toasts{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:40;
          display:flex;flex-direction:column;gap:7px;align-items:center;pointer-events:none}
  .toast{display:flex;align-items:center;gap:9px;max-width:min(520px,calc(100vw - 40px));
         padding:9px 13px;border-radius:7px;border:1px solid var(--line-2);
         background:rgba(22,27,32,.96);backdrop-filter:blur(8px);color:var(--ink);
         font:400 12.5px/1.4 var(--body);box-shadow:0 8px 24px rgba(0,0,0,.4);
         animation:toast-in .18s ease-out}
  .toast::before{content:"";width:3px;align-self:stretch;border-radius:2px;
                 background:var(--accent);flex:0 0 auto}
  .toast.ok::before{background:var(--ok)}
  .toast.err::before{background:var(--stop)}
  .toast.leaving{opacity:0;transform:translateY(6px);transition:opacity .2s,transform .2s}
  @keyframes toast-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
  @media (prefers-reduced-motion:reduce){
    .toast{animation:none}
    .toast.leaving{transition:none}
  }

  /* palette */
  .pal{display:flex;gap:7px;flex-wrap:wrap;align-items:center;padding:10px 14px;
       border-top:1px solid var(--line)}
  .pal .cap{font:500 9.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);
            width:100%;margin-bottom:1px}
  .sw{display:flex;align-items:center;gap:6px;background:var(--panel-2);border:1px solid var(--line-2);
      border-radius:20px;padding:3px 9px 3px 4px}
  .sw input[type=color]{width:19px;height:19px;padding:0;border:0;border-radius:50%;background:none;cursor:pointer}
  .sw input[type=color]::-webkit-color-swatch-wrapper{padding:0}
  .sw input[type=color]::-webkit-color-swatch{border:1px solid var(--line-2);border-radius:50%}
  .sw span{font:11px var(--mono);color:var(--ink-2)}

  .edit{background:none;border:0;color:var(--ink-3);font:11px var(--mono);cursor:pointer;padding:0;
        align-self:flex-start}
  .edit:hover{color:var(--accent)}

  /* Docked, not in the log. A status line that scrolls away with the
     transcript answers "is it working?" only if you happen to be looking at
     the right part of it. */
  .working{position:relative;display:flex;align-items:center;gap:9px;
           padding:9px 14px 10px;border-top:1px solid var(--line);
           background:linear-gradient(to top,rgba(216,166,87,.05),transparent)}
  .wlabel{flex:1;min-width:0;font:400 11.5px/1 var(--mono);letter-spacing:.02em;
          color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .wtime{font:400 11.5px/1 var(--mono);color:var(--ink-3);font-variant-numeric:tabular-nums}
  .wbar{position:absolute;left:0;right:0;bottom:0;height:2px;overflow:hidden;
        background:var(--line)}
  .wbar i{position:absolute;top:0;height:100%;width:34%;border-radius:2px;
          background:var(--accent);animation:slide 1.6s ease-in-out infinite}
  @keyframes slide{from{left:-34%}to{left:100%}}
  @media (prefers-reduced-motion:reduce){
    .wbar i{animation:none;left:0;width:100%;opacity:.35}
  }

  .ask{border-top:1px solid var(--line);padding:12px 14px;display:flex;gap:9px;align-items:flex-end}
  textarea{flex:1;resize:none;background:var(--panel-2);color:var(--ink);border:1px solid var(--line-2);
    border-radius:7px;padding:9px 11px;font:13.5px var(--body);min-height:44px;max-height:150px}
  textarea:focus,select:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
  .send{background:var(--accent);color:#1a1205;border:0;border-radius:7px;padding:11px 15px;
        font:600 13px var(--body);cursor:pointer}
  .send:disabled{background:var(--panel-2);color:var(--ink-3);cursor:not-allowed}

  /* The text block under the app: what the page is, for a reader who scrolls
     and for a search engine. Empty in development. */
  .seo{max-width:760px;margin:0 auto;padding:56px 24px 96px;color:var(--ink-2);font-size:15px;line-height:1.7}
  .seo:empty{display:none}
  .seo h1{font-size:28px;color:var(--ink);letter-spacing:-.01em;line-height:1.2;margin:0 0 16px}
  .seo h2{font-size:18px;color:var(--ink);margin:36px 0 10px}
  .seo p{margin:0 0 14px}
  .seo a{color:var(--accent)}
  .seo ul{padding-left:20px;margin:0 0 14px}
  .seo .grid{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}
  .seo .grid a{border:1px solid var(--line-2);border-radius:999px;padding:4px 12px;text-decoration:none;color:var(--ink-2);font-size:13px}
  .seo .grid a:hover{color:var(--ink);border-color:var(--ink-3)}
  .seo dl{margin:0} .seo dt{color:var(--ink);font-weight:600;margin-top:14px} .seo dd{margin:4px 0 0}
  .seo footer{margin-top:48px;border-top:1px solid var(--line);padding-top:16px;font-size:12px;color:var(--ink-3)}
  .seo footer a{color:var(--ink-3)}
  body.doc .seo{padding-top:32px}
  .doc-head{max-width:760px;margin:0 auto;padding:24px 24px 0;font:600 15px var(--body);letter-spacing:.14em;text-transform:uppercase}
  .doc-head a{color:var(--ink-3);text-decoration:none} .doc-head a b{color:var(--ink)}

  /* The landing page: the builders one click away. */
  .page{max-width:1120px;margin:0 auto;padding:0 28px 80px}
  .landing{color:var(--ink-2);font-size:15px;line-height:1.65}
  .site-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);margin-bottom:8px}
  .site-head .wordmark{font:600 15px var(--body);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);text-decoration:none}
  .site-head .wordmark b{color:var(--ink)}
  .site-head nav{display:flex;align-items:center;gap:18px}
  .site-head nav a{color:var(--ink-2);text-decoration:none;font-size:13.5px}
  .site-head nav a:hover{color:var(--ink)}
  .landing .cta,.site-head .cta{display:inline-block;background:var(--accent);color:#1a1205;font-weight:700;font-size:15px;padding:13px 22px;border-radius:8px;text-decoration:none;line-height:1.2;font-family:var(--display)}
  .landing .cta:hover,.site-head .cta:hover{filter:brightness(1.08)}
  .site-head .cta{font-size:13px;padding:9px 14px}
  .hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:36px 0 8px}
  .hero h1{font-size:46px;line-height:1.06;letter-spacing:-.022em;color:var(--ink);margin:12px 0 18px}
  .hero p{font-size:17px;margin:0 0 18px}
  .eyebrow{font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:0}
  .actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
  .more{color:var(--ink-2);font-size:14px}
  .live{position:relative;aspect-ratio:1;max-width:560px;margin-left:auto;width:100%}
  .live img{position:absolute;inset:0;width:100%;height:100%;display:block}
  .live #hero-live{position:absolute;inset:0}
  .live #hero-live canvas{position:absolute;inset:0}
  .live .cap{position:absolute;left:0;right:0;bottom:10px;text-align:center;font:500 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
  .landing h2{font-size:26px;letter-spacing:-.015em;color:var(--ink);margin:64px 0 6px}
  /* One measure for every block of prose; grids, rows and chips run the frame. */
  .landing p,.landing dl,.landing .three{max-width:760px}
  .landing h2+p{margin:0 0 22px}
  .landing .three{max-width:none}
  .landing h3{font-size:16px;color:var(--ink);margin:0 0 6px}
  .builders{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px 14px}
  .builders a{display:block;text-decoration:none;color:var(--ink-2);text-align:center;border-radius:10px;padding:6px 6px 12px;border:1px solid transparent}
  .builders a:hover{border-color:var(--line-2);background:var(--panel)}
  .builders img{display:block;width:100%;height:auto;aspect-ratio:1}
  .builders b{display:block;color:var(--ink);font-size:15px;margin-top:2px}
  .builders small{display:block;font-size:12px;color:var(--ink-3);line-height:1.4}
  .row{display:flex;flex-wrap:wrap;gap:8px 12px;margin:0 0 10px}
  .row figure{flex:0 0 auto;width:160px;margin:0;text-align:center}
  .row img{display:block;width:100%;height:auto;aspect-ratio:1}
  .row figcaption{font:400 12px var(--mono);color:var(--ink-3);margin-top:4px}
  .row figcaption b{display:block;font:600 13px var(--body);color:var(--ink)}
  .three{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:28px}
  .three p{margin:0}
  .chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 14px}
  .chips span{border:1px solid var(--line-2);border-radius:999px;padding:5px 12px;font:500 12px var(--mono);color:var(--ink-2)}
  .landing dl{margin:0} .landing dt{color:var(--ink);font-weight:600;margin-top:14px} .landing dd{margin:4px 0 0}
  .landing a{color:var(--accent)}
  .site-foot{margin-top:56px;border-top:1px solid var(--line);padding-top:16px;font-size:12px;color:var(--ink-3);display:flex;gap:16px;flex-wrap:wrap}
  .site-foot a{color:var(--ink-3)}
  @media (max-width:820px){.hero{grid-template-columns:1fr;gap:24px;padding-top:18px}.hero h1{font-size:34px}.live{margin:0 auto}.site-head nav a:not(.cta){display:none}}

  /* The display face, everywhere a name or a heading is set. */
  .brand,.doc-head,.site-head .wordmark,.landing h1,.landing h2,.landing h3,.landing .cta,.seo h1,.seo h2,.chips span{font-family:var(--display)}
  .landing h1{font-weight:700;letter-spacing:-.01em}
  .landing h2{font-weight:600}
  .brand,.site-head .wordmark,.doc-head{font-weight:600;letter-spacing:.16em}
  /* The mark beside the name. */
  .brand,.site-head .wordmark,.doc-head a{display:inline-flex;align-items:center;gap:9px}
  .brand img,.site-head .wordmark img,.doc-head img{width:20px;height:20px;display:block}
  /* Guides and the landing list of them. */
  .doc-head{display:flex;justify-content:space-between;align-items:center;gap:16px}
  .doc-head nav{display:flex;gap:16px} .doc-head nav a{font:400 13px var(--body);letter-spacing:0;text-transform:none;color:var(--ink-2);text-decoration:none}
  .seo pre{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:12px 14px;overflow-x:auto;font:400 12.5px/1.6 var(--mono);color:var(--ink)}
  .seo code{font:400 .92em var(--mono);color:var(--ink)}
  .seo .tbl{overflow-x:auto;margin:0 0 14px} .seo table{border-collapse:collapse;font-size:14px;min-width:420px}
  .seo th,.seo td{text-align:left;padding:7px 12px;border-bottom:1px solid var(--line)} .seo th{color:var(--ink);font-weight:600}
  .seo h3{font-size:15px;color:var(--ink);margin:22px 0 6px}
  .landing .guides{list-style:none;padding:0;margin:0 0 8px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
  .landing .guides li{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
  .landing .guides a{display:block;color:var(--ink);text-decoration:none;font-weight:600;margin-bottom:4px} .landing .guides a:hover{color:var(--accent)}
  .landing .guides span{display:block;font-size:13px;color:var(--ink-2)}
  /* The palette texture, shown large: blocks, not blur. */
  .row img.pal{image-rendering:pixelated;border:1px solid var(--line);border-radius:6px}
  /* A guide sits in the same frame as the landing page, its text in a reading column. */
  body.doc .seo{margin:0;padding:24px 0 0;max-width:none;min-width:0}
  .seo .crumb{font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin:0 0 10px}
  .seo .crumb a{color:var(--ink-2)}
  .seo .spokes,.landing .spokes{list-style:none;padding:0;margin:0 0 18px;display:grid;gap:10px}
  .seo .spokes li,.landing .spokes li{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 16px}
  .seo .spokes a,.landing .spokes a{display:block;color:var(--ink);text-decoration:none;font-weight:600;margin-bottom:3px}
  .seo .spokes a:hover,.landing .spokes a:hover{color:var(--accent)}
  .seo .spokes span,.landing .spokes span{display:block;font-size:13px;color:var(--ink-2)}
  .seo h2 a{color:var(--ink);text-decoration:none} .seo h2 a:hover{color:var(--accent)}
  .row img.pal{aspect-ratio:auto;height:auto}
  /* A text page: the reading column and a rail beside it that maps the guide. */
  .doc-grid{display:grid;grid-template-columns:minmax(0,760px) minmax(240px,1fr);gap:56px;align-items:start}
  .rail-nav{position:sticky;top:20px;padding-top:28px;font-size:13.5px}
  .rail-nav h4{font:600 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:0 0 8px}
  .rail-nav ol{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:4px}
  .rail-nav ol a{display:block;color:var(--ink-2);text-decoration:none;padding:6px 10px;border-radius:6px;border:1px solid transparent;line-height:1.4}
  .rail-nav ol a:hover{color:var(--ink)}
  .rail-nav ol a.now{color:var(--ink);background:var(--panel);border-color:var(--line-2)}
  .rail-nav .cta-card{border:1px solid var(--line);border-radius:10px;padding:16px 18px;background:var(--panel)}
  .rail-nav .cta-card b{display:block;color:var(--ink);font-family:var(--display);font-size:15px;margin-bottom:6px}
  .rail-nav .cta-card p{margin:0 0 12px;color:var(--ink-2);font-size:13px;line-height:1.5}
  .rail-nav .cta-card .cta{display:inline-block;background:var(--accent);color:#1a1205;font:700 13px var(--display);padding:9px 14px;border-radius:8px;text-decoration:none}
  @media (max-width:900px){.doc-grid{grid-template-columns:1fr;gap:24px}.rail-nav{position:static;padding-top:8px}}