.v16-root .pcat{
  --pc-card:#fff;
  --pc-tint:#f4f6f8;
  --pc-ink:#192d40;
  --pc-ink-deep:#19364a;
  --pc-soft:#4f6475;
  --pc-muted:#587283;
  --pc-line:#dbe2e7;
  --pc-rule:#e4eaee;
  --pc-night:#19344c;
  --pc-cream:#fdf7ea;
  --pc-warm:#f19b47;
  --pc-warm-line:#eb9441;
  --pc-warm-ink:#18364b;
  --pc-warm-hover:#f5aa63;
  --pc-on-edge:#41657f;
  --pc-good:#007a52;
  --pc-bad:#c2413a;
  --pc-bad-ink:#b2362f;
  --pc-chev:#8aa0b0;
  --pc-sep:#b3c1cc;
  --pc-label:#6c7682;
  --pc-dot:#d3dce3;
  --pc-hover:#f6f9fb;
  --pc-press:#eef3f6;
  --pc-hover-line:#b8cbd8;
  --pc-sec-hover:#e8eef2;
  --pc-link-line:#9bb2c3;
  --pc-ease-out:cubic-bezier(.23,1,.32,1);
  width:100%;max-width:1112px;margin:0 auto;
  color:var(--pc-ink);font-family:"Inter",system-ui,sans-serif;font-size:15px;line-height:1.5}
.v16-root .pcat a,.v16-root .pcat button{touch-action:manipulation}
.v16-root .pcat img{display:block}
.v16-root .pcat .pc-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ------------------------------------------------------------ buttons */
.v16-root .pcat .pc-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:10px;border:1px solid transparent;
  font:inherit;font-size:14px;font-weight:600;letter-spacing:-.005em;text-decoration:none;cursor:pointer;user-select:none;-webkit-user-select:none;
  transition:transform 160ms var(--pc-ease-out),background-color 150ms ease,border-color 150ms ease}
.v16-root .pcat .pc-btn:active{transform:scale(.97)}
.v16-root .pcat .pc-btn:focus-visible{outline:2px solid var(--pc-on-edge);outline-offset:2px}
.v16-root .pcat .pc-btn.pc-sm{min-height:36px;padding:0 14px;font-size:13px}
.v16-root .pcat .pc-btn.pc-primary{background:var(--pc-warm);border-color:var(--pc-warm-line);color:var(--pc-warm-ink)}
@media (hover:hover) and (pointer:fine){
  .v16-root .pcat .pc-btn.pc-primary:hover{background:var(--pc-warm-hover)}
}
.v16-root .pcat .pc-lnk{color:var(--pc-ink-deep);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--pc-link-line)}

/* ------------------------------------------------------- page grammar */
.v16-root .pcat .pc-chev{display:flex;color:var(--pc-chev);flex:none}
.v16-root .pcat .pc-chev svg,.v16-root .pcat .pc-back svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.v16-root .pcat .pc-card{background:var(--pc-card);border:1px solid var(--pc-line);border-radius:16px}
.v16-root .pcat .pc-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:0 0 18px;font-size:13.5px;color:var(--pc-muted)}
/* The visitor frame's landing sheet styles every bare <nav> as its sticky
   masthead pill; the trail is a line of text, so it says the pill's parts. */
.v16-root .pcat nav.pc-crumb{position:static;z-index:auto;padding:0;background:none;backdrop-filter:none;-webkit-backdrop-filter:none;border-radius:0;box-shadow:none}
.v16-root .pcat .pc-crumb a{color:var(--pc-soft);text-decoration:none;font-weight:500}
.v16-root .pcat .pc-crumb a:focus-visible{outline:2px solid var(--pc-on-edge);outline-offset:2px;border-radius:4px}
@media (hover:hover) and (pointer:fine){.v16-root .pcat .pc-crumb a:hover{color:var(--pc-ink)}}
.v16-root .pcat .pc-crumb .pc-sep{color:var(--pc-sep)}
.v16-root .pcat .pc-back{display:none;align-items:center;gap:6px;margin:0 0 12px;padding:6px 0;border:0;background:none;cursor:pointer;color:var(--pc-soft);font:inherit;font-size:14px;font-weight:500;text-decoration:none}
.v16-root .pcat .pc-hd{margin:0 0 24px}
.v16-root .pcat .pc-hd .pc-kick{margin:0 0 6px;font-size:13.5px;font-weight:500;color:var(--pc-soft)}
.v16-root .pcat .pc-hd h1{margin:0;font-size:32px;font-weight:600;letter-spacing:-.035em;line-height:1.15;text-wrap:balance;max-width:24ch;color:var(--pc-ink)}
.v16-root .pcat .pc-hd .pc-sub{margin:10px 0 0;color:var(--pc-soft);font-size:15px;max-width:62ch}
.v16-root .pcat .pc-hd.pc-with-art{display:flex;align-items:center;gap:18px}
.v16-root .pcat .pc-hd.pc-with-art .pc-art{width:96px;height:68px;border-radius:12px;object-fit:cover;flex:none}
.v16-root .pcat .pc-hd .pc-acts{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px}
.v16-root .pcat .pc-hd.pc-tight{margin-bottom:16px}
.v16-root .pcat .pc-hd.pc-tight h1{font-size:26px}
.v16-root .pcat .pc-note{font-size:13.5px;color:var(--pc-soft)}
.v16-root .pcat .pc-note.pc-after{margin:14px 0 0}
.v16-root .pcat .pc-free{font-size:13px;font-weight:500;color:var(--pc-good);white-space:nowrap}
.v16-root .pcat .pc-ylab{margin:0;padding:18px 16px 6px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--pc-label);text-transform:uppercase}
.v16-root .pcat .pc-lab2{margin:0 0 10px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--pc-label)}
.v16-root .pcat .pc-lab2.pc-more{margin-top:32px}

/* ------------------------------------- rows: the whole row is the link */
.v16-root .pcat .pc-row{display:flex;align-items:center;gap:14px;min-height:52px;padding:0 16px;text-decoration:none;color:var(--pc-ink);border-top:1px solid var(--pc-rule);
  transition:background-color 120ms ease;-webkit-user-select:none;user-select:none;cursor:pointer;width:100%;background:none;border-left:0;border-right:0;border-bottom:0;font:inherit;text-align:left}
.v16-root .pcat .pc-list > .pc-row:first-child,.v16-root .pcat .pc-list > .pc-ylab + .pc-row{border-top:0}
.v16-root .pcat .pc-row:active{background:var(--pc-press)}
@media (hover:hover) and (pointer:fine){.v16-root .pcat .pc-row:hover{background:var(--pc-hover)}}
.v16-root .pcat .pc-row:focus-visible{outline:2px solid var(--pc-on-edge);outline-offset:-2px;border-radius:8px}
.v16-root .pcat .pc-row .pc-nm{flex:1 1 auto;font-size:15px;font-weight:500;min-width:0}
.v16-root .pcat .pc-row .pc-meta{margin-left:auto;font-size:13.5px;color:var(--pc-soft);white-space:nowrap}
.v16-root .pcat .pc-row .pc-sub2{display:block;font-size:13px;color:var(--pc-soft);font-weight:400;margin-top:1px}
.v16-root .pcat .pc-list{padding:6px 0}
.v16-root .pcat .pc-card.pc-list{overflow:hidden}
.v16-root .pcat .pc-chr .pc-m2{display:none}
/* Wider than the probe: two columns of rows on a desktop. The first row of
   each column has no rule over it, and the left column is ruled off. */
.v16-root .pcat .pc-rows > .pc-row:first-child{border-top:0}
@media (min-width:921px){
  .v16-root .pcat .pc-grid2{display:grid;grid-template-columns:1fr 1fr}
  .v16-root .pcat .pc-grid2 > .pc-row:nth-child(2){border-top:0}
  .v16-root .pcat .pc-grid2 > .pc-row:nth-child(odd){border-right:1px solid var(--pc-rule)}
}

/* ---------------------------------------------------------- questions */
.v16-root .pcat .pc-qc{padding:18px 18px 16px}
.v16-root .pcat .pc-qc + .pc-qc{border-top:1px solid var(--pc-rule)}
.v16-root .pcat .pc-qc .pc-pos{margin:0 0 6px;font-size:12.5px;color:var(--pc-soft);font-weight:500}
.v16-root .pcat .pc-qc .pc-stem{margin:0 0 14px;font-size:16px;font-weight:500;line-height:1.45;color:var(--pc-ink)}
.v16-root .pcat .pc-qc .pc-stem p{margin:0}
.v16-root .pcat .pc-qc .pc-stem p + p{margin-top:8px}
.v16-root .pcat .pc-opts{display:flex;flex-direction:column;gap:8px;margin:0;padding:0;list-style:none}
.v16-root .pcat .pc-opt{display:flex;align-items:center;gap:12px;width:100%;min-height:48px;padding:10px 12px;border:1px solid var(--pc-line);border-radius:11px;background:var(--pc-card);
  font:inherit;font-size:14.5px;line-height:1.4;color:var(--pc-ink);text-align:left;transition:background-color 150ms ease,border-color 150ms ease,transform 160ms var(--pc-ease-out)}
.v16-root .pcat .pc-opt .pc-l{display:grid;place-items:center;width:28px;height:28px;flex:none;border-radius:50%;border:1px solid var(--pc-line);font-size:13px;font-weight:600;color:var(--pc-soft);
  text-transform:uppercase;transition:background-color 150ms ease,color 150ms ease,border-color 150ms ease}
.v16-root .pcat .pc-opt .pc-l svg{width:14px;height:14px;stroke:#fff;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.v16-root .pcat .pc-opt[data-mark=right]{background:#e9f6f0;border-color:#9fd6bf}
.v16-root .pcat .pc-opt[data-mark=right] .pc-l{background:var(--pc-good);border-color:var(--pc-good);color:#fff}

/* ------------- sample mode: the room's own column, then the fade and the way on.
   The cards are the kit's question card (components/v16/primitives/question-card.tsx),
   so only the frame around them lives here. Founder direction, 6 October 2026. */
.v16-root .pcat .pc-hd .count-line{margin-top:10px}
/* The visitor frame's landing sheet carries a BARE .opts rule (its hero demo's
   20px top margin). The kit's option list states no margin, so on a visitor's
   page that leaked in as a gap under every stem the signed-in card does not
   have. Said here, for the one catalog room that draws the kit's card. */
.v16-root .pcat .opts{margin-top:0}
.v16-root .pcat .pc-col{display:flex;flex-direction:column}
/* A ?questionNumber= lands a card, or the wall, below the masthead's sticky
   pill (10px inset plus its height) and a breath under it (CLAUDE rule 34). */
.v16-root .pcat .pc-col .qlist > *{scroll-margin-top:88px}
/* The wall lands with the fading card above it still in view, so the button
   reads as where the questions run out, not as a page of its own. */
.v16-root .pcat .pc-wall{scroll-margin-top:200px}
.v16-root .pcat .pc-qcard:focus{outline:none}
.v16-root .pcat .pc-qcard:focus-visible > .card{outline:2px solid var(--pc-on-edge);outline-offset:2px}
.v16-root .pcat .pc-fade{position:relative;margin-top:16px}
/* The next card's outline, fading into the page: bars only, never words. The
   mask fades it into whatever the page is painted with, so no colour is
   guessed. */
.v16-root .pcat .pc-ghost{display:flex;flex-direction:column;gap:12px;padding:22px 24px;pointer-events:none;user-select:none;-webkit-user-select:none;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85) 0%,rgba(0,0,0,.4) 24%,transparent 50%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85) 0%,rgba(0,0,0,.4) 24%,transparent 50%)}
.v16-root .pcat .pc-ghost i{display:block;border-radius:6px;background:var(--pc-tint)}
.v16-root .pcat .pc-ghost .pc-gk{width:96px;height:10px;margin-bottom:4px}
.v16-root .pcat .pc-ghost .pc-gs{width:72%;height:14px}
.v16-root .pcat .pc-ghost .pc-gs2{width:46%;margin-bottom:4px}
.v16-root .pcat .pc-ghost .pc-go{height:50px;border-radius:12px;background:var(--pc-card);border:1px solid var(--pc-line)}
.v16-root .pcat .pc-wall{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;
  max-width:460px;margin:-200px auto 0;padding:0 0 12px}
.v16-root .pcat .pc-wall:focus{outline:none}
.v16-root .pcat .pc-wall h2{margin:0;font-size:22px;font-weight:600;letter-spacing:-.02em;line-height:1.25;color:var(--pc-ink);text-wrap:balance}
.v16-root .pcat .pc-wall p{margin:8px 0 20px;font-size:14.5px;line-height:1.5;color:var(--pc-soft);text-wrap:pretty}
.v16-root .pcat .pc-wall .pc-btn{min-width:280px;box-shadow:0 3px 8px rgba(160,70,0,.18),0 14px 32px -8px rgba(241,155,71,.45)}
.v16-root .pcat .pc-wall .pc-in{margin-top:14px;font-size:14px;color:var(--pc-soft)}

/* Wider than the probe: the heading beside the questions on a desktop. The
   chapter page puts its onward rows under the heading, in the same column. */
.v16-root .pcat .pc-two > *{min-width:0}
@media (min-width:921px){
  .v16-root .pcat .pc-two{display:grid;grid-template-columns:minmax(0,380px) minmax(0,1fr);grid-template-rows:auto 1fr;
    grid-template-areas:"hd main" "side main";column-gap:48px;align-items:start}
  .v16-root .pcat .pc-two > .pc-a-hd{grid-area:hd}
  .v16-root .pcat .pc-two > .pc-a-main{grid-area:main}
  .v16-root .pcat .pc-two > .pc-a-side{grid-area:side}
  .v16-root .pcat .pc-two > .pc-a-side .pc-lab2.pc-more{margin-top:8px}
  /* the side column is narrow, so a row states its size under its name */
  .v16-root .pcat .pc-a-side .pc-chr .pc-m2{display:block}
  .v16-root .pcat .pc-a-side .pc-chr .pc-meta{display:none}
}

/* entrance: an occasional page, one short stagger on arrival only */
.v16-root .pcat .pc-rv{animation:pc-rv 240ms var(--pc-ease-out) both}
.v16-root .pcat .pc-rv.pc-i1{animation-delay:45ms}
.v16-root .pcat .pc-rv.pc-i2{animation-delay:90ms}
.v16-root .pcat .pc-rv.pc-i3{animation-delay:135ms}
.v16-root .pcat .pc-rv.pc-i4{animation-delay:180ms}
@keyframes pc-rv{from{opacity:0;transform:translateY(6px)}}

/* ---------------------------------------------------------------- phone */
@media (max-width:920px){
  .v16-root .pcat .pc-crumb{display:none}
  .v16-root .pcat .pc-back{display:inline-flex}
  .v16-root .pcat .pc-hd{margin-bottom:16px}
  .v16-root .pcat .pc-hd h1{font-size:25px;letter-spacing:-.03em}
  .v16-root .pcat .pc-hd .pc-sub{font-size:14px;margin-top:6px}
  .v16-root .pcat .pc-hd.pc-with-art .pc-art{width:64px;height:46px;border-radius:9px}
  .v16-root .pcat .pc-hd.pc-with-art{align-items:flex-start;gap:14px}
  .v16-root .pcat .pc-hd .pc-acts{margin-top:16px}
  .v16-root .pcat .pc-hd .pc-acts .pc-btn{flex:1 1 100%}
  .v16-root .pcat .pc-row{padding:8px 14px;min-height:56px;gap:12px}
  .v16-root .pcat .pc-row .pc-nm{font-size:15px}
  .v16-root .pcat .pc-ylab{padding:14px 14px 4px}
  .v16-root .pcat .pc-chr .pc-m2{display:block}
  .v16-root .pcat .pc-chr .pc-meta{display:none}
  .v16-root .pcat .pc-qc{padding:16px 14px 14px}
  .v16-root .pcat .pc-qc .pc-stem{font-size:15.5px}
  .v16-root .pcat .pc-ghost{padding:18px 16px}
  .v16-root .pcat .pc-wall{margin-top:-190px}
  .v16-root .pcat .pc-wall h2{font-size:20px}
  .v16-root .pcat .pc-wall .pc-btn{align-self:stretch;min-width:0}
}
@media (prefers-reduced-motion:reduce){
  .v16-root .pcat .pc-rv{animation-name:pc-fade}
  @keyframes pc-fade{from{opacity:0}}
  .v16-root .pcat .pc-btn:active{transform:none}
}

/* ================================================================
   The older catalog parts other pages still draw through this sheet.
   ================================================================ */

/* the eyebrow's own label wraps on a phone here: the kit keeps it on one
   line, and these cards carry sentence-length markers (see
   components/v16/primitives/eyebrow.tsx). */
@media(max-width:560px){.v16-root .eyebrow span{white-space:normal}}
.v16-root .sec-h{font-size:20px;font-weight:600;letter-spacing:-.02em;margin:0 0 4px;line-height:1.2}
.v16-root .sec-p{font-size:13.5px;color:var(--ink-faint);margin:0 0 16px;max-width:60ch}
/* A heading with no sentence under it still owes the block below it the
   sentence's own 16px, or the card reads as one run-on line. */
.v16-root .sec-h + .books,.v16-root .sec-h + .qlist{margin-top:16px}

.v16-root .split{display:grid;grid-template-columns:1fr;gap:22px;align-items:center}
.v16-root .split > *{min-width:0}
@media(min-width:920px){.v16-root .split{grid-template-columns:1.02fr .98fr;gap:30px}}
.v16-root .acts{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px;align-items:center}
@media(max-width:520px){.v16-root .acts .btn{width:100%}}
.v16-root .actnote{font-size:12.5px;color:var(--ink-faint)}
.v16-root .books{display:flex;gap:10px;flex-wrap:wrap}

/* the night stage's label */
.v16-root .getlab{display:flex;align-items:center;gap:9px;margin:0 0 10px}
.v16-root .getlab span{font-family:"Inter",sans-serif;font-weight:500;font-size:10.5px;
  letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint)}
.v16-root .getlab i{width:14px;height:4px;border-radius:999px;background:var(--glow);flex:none}

/* the numbered working and its answer line */
/* wsteps rather than steps: the guides sheet already owns a .steps list with
   its own family and grid, and two room sheets are never in one document today,
   but a name that could collide is a defect waiting for the day they are. The
   font-family:inherit below is belt and braces on the same point. */
.v16-root .work.wsteps{padding:20px 22px;gap:12px;font-family:inherit}
.v16-root .work.wsteps .whead{display:flex;align-items:center;gap:10px;margin:0}
.v16-root .work.wsteps .whead span:last-child{font-family:"Inter",sans-serif;
  font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:#3c5b76;font-weight:400}
.v16-root .work.wsteps .whead i{width:14px;height:4px;border-radius:999px;background:var(--glow);flex:none}
.v16-root .work.wsteps ol{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px;
  counter-reset:w;font-family:inherit}
.v16-root .work.wsteps ol li{display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start;
  font-size:14px;line-height:1.5}
.v16-root .work.wsteps ol li::before{counter-increment:w;content:counter(w);width:24px;height:24px;
  border-radius:8px;background:rgba(255,255,255,.62);color:#26140a;
  font-family:"Inter",sans-serif;font-variant-numeric:tabular-nums;
  font-size:11.5px;display:flex;align-items:center;justify-content:center;margin-top:1px}
.v16-root .work.wsteps .res{margin:0;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.6);
  font-size:14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.v16-root .work.wsteps .res b{color:var(--good);font-weight:600}
.v16-root .work.wsteps .res em{font-style:normal;color:var(--ink-soft);font-size:13px}

/* the night stage's figure text: sized in user units, bumped on a phone where
   the SVG scales down */
.v16-root svg .fg-sub{font-family:"Inter",sans-serif;font-variant-numeric:tabular-nums;font-size:11px;letter-spacing:1.2px}
.v16-root svg .fg-mid{font-family:"Inter",sans-serif;font-size:14px}
.v16-root svg .fg-small{font-family:"Inter",sans-serif;font-variant-numeric:tabular-nums;font-size:11px;letter-spacing:1.4px}
@media(max-width:900px){
  .v16-root svg .fg-sub{font-size:15px;letter-spacing:.8px}
  .v16-root svg .fg-mid{font-size:21px}
  .v16-root svg .fg-small{font-size:15px}
}

/* the sign-up ask under the sample question list */
.v16-root .stickycta{display:flex;justify-content:center;padding:18px 0 2px}
.v16-root .stickycta .btn{width:100%;max-width:420px;box-shadow:0 3px 8px rgba(160,70,0,.28),
  0 18px 40px rgba(255,143,31,.4)}