/* Build a tiny language model. This box owns its appearance.
 *
 * Plum for structure, and a two colour diverging scale for the matrix, because
 * embedding values are signed and a single hue would throw away the sign.
 * Numbers are set in mono at a size you can actually read, since the whole
 * argument of the page is that the numbers are small enough to look at.
 */
:root{
  --paper:#FAF8F4; --card:#FFFFFF; --sunk:#F1EDE6;
  --ink:#191722; --ink-2:#454150; --muted:#787485;
  --rule:#E4DFD6; --rule-2:#CEC7BB;
  --plum:#6D28D9; --plum-w:#F1ECFC; --plum-b:#DACEF6;
  --neg:#B0271B; --pos:#1D4E89; --warn:#A9660C; --warn-w:#FAF1E2; --warn-b:#E9D4AE;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --sans:ui-sans-serif,-apple-system,"Segoe UI",Inter,Roboto,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,monospace;
  --read:1.19rem; --lh:1.78; --measure:66ch;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
article.page{max-width:64rem;margin:0 auto;padding:0 1.3rem 5rem}
section{margin:3.4rem 0}
h2{font:400 clamp(1.8rem,3.9vw,2.5rem)/1.13 var(--serif);letter-spacing:-.02em;
  margin:0 0 1rem;text-wrap:balance}
p{margin:0 0 1.3rem;font-size:var(--read);line-height:var(--lh);color:var(--ink-2);
  max-width:var(--measure)}
b,strong{color:var(--ink)}
code{font-family:var(--mono);font-size:.86em;background:var(--sunk);
  border:1px solid var(--rule);border-radius:4px;padding:.06em .34em}
.kicker{font:500 10.5px/1 var(--mono);letter-spacing:.19em;text-transform:uppercase;
  color:var(--plum);margin:0 0 .8rem;max-width:none}
.lede{font-size:1.16rem;line-height:1.66;color:var(--ink);max-width:60ch;font-weight:450}
.small{font-size:.92rem;color:var(--muted);max-width:70ch}
.note{background:var(--sunk);border-left:3px solid var(--plum);border-radius:0 10px 10px 0;
  padding:1rem 1.2rem;font-size:1.05rem;max-width:none;color:var(--ink-2)}

/* sheet and hero */
.sheet{background:var(--card);border:1px solid var(--rule);border-radius:16px;
  padding:clamp(1.15rem,3.2vw,2.4rem);margin:1.2rem 0 2.2rem;
  box-shadow:0 1px 2px rgba(25,23,34,.04),0 14px 34px -26px rgba(25,23,34,.22)}
.hero{padding:.4rem 0 0}
.eyebrow{font:500 11px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin:0 0 1.2rem;max-width:none}
.hero h1{font:400 clamp(2rem,5vw,3.2rem)/1.06 var(--serif);margin:0 0 1.1rem;
  letter-spacing:-.024em;text-wrap:balance;max-width:22ch}
.hero h1 em{font-style:italic;color:var(--plum)}
.dek{font-size:clamp(1.02rem,2.2vw,1.16rem);line-height:1.62;margin:0 0 1.4rem;max-width:56ch}
.byline{display:flex;flex-wrap:wrap;gap:1.1rem;margin:0;padding:1.1rem 0 0;max-width:none;
  border-top:1px solid var(--rule);
  font:500 11.5px/1 var(--mono);letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}

/* the premise box */
.prem{margin:2rem 0 0;padding-top:1.6rem;border-top:2px solid var(--ink)}
.prem-l{font:600 10.5px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin:0 0 .8rem;max-width:none}
.prem-t{font-size:1.2rem;line-height:1.6;color:var(--ink);max-width:62ch}

/* the corpus */
.corpus{margin:1.6rem 0;padding:1.4rem 1.5rem;background:var(--card);
  border:1px solid var(--rule);border-radius:14px}
.corpus p{font:400 1.12rem/1.75 var(--serif);color:var(--ink);margin:0 0 1rem;max-width:60ch}
.corpus p:last-child{margin-bottom:0}
.corpus .w{border-radius:3px;padding:.02em .12em}
.corpus .w-crane{background:var(--plum-w);color:var(--plum);font-weight:600}
.corpus .w-it{background:var(--warn-w);color:var(--warn);font-weight:600}

.why{margin:1.6rem 0;padding:0;list-style:none;counter-reset:w}
.why li{counter-increment:w;position:relative;padding:.95rem 0 .95rem 2.7rem;
  border-top:1px solid var(--rule);font-size:1.03rem;line-height:1.7;color:var(--ink-2)}
.why li:last-child{border-bottom:1px solid var(--rule)}
.why li::before{content:counter(w);position:absolute;left:0;top:1rem;width:1.6rem;height:1.6rem;
  border-radius:50%;background:var(--plum-w);color:var(--plum);
  font:600 .76rem/1.6rem var(--mono);text-align:center}
.why b{color:var(--ink)}
.hl{color:var(--ink);font-weight:600}

/* tokens */
.strip{margin:1.8rem 0}
.tokens{display:flex;flex-wrap:wrap;gap:.3rem;margin-bottom:.9rem}
.tk{font:500 .84rem var(--mono);padding:.3rem .5rem;border-radius:6px;background:var(--card);
  border:1px solid var(--rule);color:var(--ink-2);cursor:default;position:relative}
.tk:hover{border-color:var(--plum);color:var(--plum)}
.tk .n{display:block;font-size:.6rem;color:var(--muted);text-align:center;margin-top:.1rem}
.tk-crane{background:var(--plum-w);border-color:var(--plum-b);color:var(--plum);font-weight:700}
.tk-punc{opacity:.5}
.chip-c{background:var(--plum-w);color:var(--plum);border-radius:4px;padding:.05em .3em;
  font-family:var(--mono);font-size:.86em;font-weight:600}
figcaption{margin-top:.8rem;font-size:.92rem;line-height:1.62;color:var(--muted);max-width:64ch}
figcaption b{color:var(--ink)}
figure{margin:1.8rem 0;padding:0}

/* vocabulary */
/* Two columns. Forty three rows of mostly one is a tall, monotonous strip,
   and the shape of the distribution is easier to see side by side. */
.vocab{display:grid;gap:.22rem .1rem}
@media(min-width:40rem){.vocab{grid-template-columns:1fr 1fr;column-gap:2rem}}
.vc{display:grid;grid-template-columns:2.2rem 6.5rem minmax(0,1fr);gap:.6rem;align-items:center}
.vc-i{font:500 .74rem var(--mono);color:var(--muted);text-align:right}
.vc-w{font:500 .88rem var(--mono);color:var(--ink)}
.vc-b{height:.62rem;border-radius:99px;background:var(--plum);opacity:.75}
.vc-n{font:500 .7rem var(--mono);color:var(--muted);margin-left:.35rem}
.vc-h{font:600 .6rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
  padding-bottom:.35rem;border-bottom:1px solid var(--rule);margin-bottom:.35rem}
.vc-h span:first-child{text-align:right}
/* One column on a phone, so the second header would be a duplicate mid list. */
@media(max-width:40rem){.vc-h+.vc-h{display:none}}

.warn{background:var(--warn-w);border:1px solid var(--warn-b);border-radius:14px;
  padding:1.15rem 1.3rem;margin:1.8rem 0}
.warn p{margin:0 0 .8rem;font-size:1.02rem;max-width:none;color:var(--ink-2)}
.warn p:last-child{margin-bottom:0}
.warn-b{background:var(--plum-w);border-color:var(--plum-b)}

/* the maths callout */
.math{background:var(--ink);color:#F2EEF8;border-radius:14px;padding:1.3rem 1.4rem;margin:1.8rem 0}
.math-l{font:600 .6rem var(--mono);letter-spacing:.16em;text-transform:uppercase;
  color:#A99FC0;margin-bottom:.7rem}
.math-e{font:400 1.6rem/1.4 var(--serif);color:#fff;letter-spacing:.01em}
/* A display equation is wider than a phone. Let the equation scroll inside its
   own box rather than be clipped by the page, which is what happened before. */
mjx-container[display="true"]{overflow-x:auto;overflow-y:hidden;max-width:100%;
  padding:.15rem 0;scrollbar-width:thin}
.math-e sub{font-size:.62em}
.math-n{margin:.9rem 0 0;font-size:.98rem;color:#C6BEDA;max-width:none}
.math-n b{color:#fff;font-family:var(--mono);font-size:.9em}

/* the embedding matrix */
.matfig .row{display:flex;gap:1px;align-items:center;margin-bottom:1px}
.matfig .lab{width:5.6rem;flex:none;font:500 .72rem var(--mono);color:var(--ink-2);
  text-align:right;padding-right:.5rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cell{width:100%;height:.85rem;border-radius:2px}
.matfig .row:hover .lab{color:var(--plum);font-weight:700}
.matrow{font:500 .72rem var(--mono);color:var(--muted);margin-top:.6rem;min-height:1.1rem}

/* the scatter */
.scatterfig svg{width:100%;height:auto;display:block;background:var(--card);
  border:1px solid var(--rule);border-radius:14px}
.sc-d{fill:var(--plum);opacity:.55}
.sc-d.on{fill:var(--warn);opacity:1}
.sc-l{font:500 9px var(--mono);fill:var(--muted)}
.sc-ax{stroke:var(--rule-2);stroke-width:1}

/* the code files */
.files{display:grid;gap:.5rem;margin:1.4rem 0}
.file{background:var(--card);border:1px solid var(--rule);border-radius:11px;
  padding:.85rem 1.05rem;display:grid;grid-template-columns:auto minmax(0,1fr);gap:.9rem;
  align-items:baseline}
.file-n{font:600 .78rem var(--mono);color:var(--plum)}
.file-b b{display:block;font-size:.98rem;color:var(--ink);font-weight:640}
.file-b span{display:block;font-size:.9rem;color:var(--ink-2);line-height:1.55;margin-top:.15rem}

/* the symbol legend inside the dark maths block */
.legend{border-collapse:collapse;min-width:0;width:100%}
.legend td{padding:.55rem .6rem .55rem 0;border-bottom:1px solid #3A3550;vertical-align:top;
  font-size:.95rem;line-height:1.6;color:#C6BEDA}
.legend tr:last-child td{border-bottom:0}
.legend td:first-child{font-size:1.05rem;color:#fff;white-space:nowrap;padding-right:1rem;width:3rem}
.legend b{color:#fff}
.legend em{color:#E4DEF2}

/* comparison table */
.tw{overflow-x:auto}
.cmp{width:100%;border-collapse:collapse;font-size:.95rem;min-width:26rem}
.cmp th{text-align:left;padding:0 .8rem .5rem 0;border-bottom:2px solid var(--ink);
  font:600 .64rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.cmp td{padding:.55rem .8rem .55rem 0;border-bottom:1px solid var(--rule);color:var(--ink-2)}
.cmp td:first-child{font-family:var(--mono);font-size:.88rem;color:var(--ink)}

/* what is next */
.next{background:var(--sunk);border:1px solid var(--rule);border-radius:16px;
  padding:1.5rem 1.6rem}
.next-l{font:600 10.5px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;
  color:var(--plum);margin:0 0 1rem;max-width:none}
.next-t{font-size:1.06rem;line-height:1.7;color:var(--ink-2);max-width:62ch;margin:0 0 1rem}
.next-list{margin:0;padding-left:1.2rem}
.next-list li{font-size:1.03rem;line-height:1.7;color:var(--ink-2);margin-bottom:.7rem}
.next-n{margin:1.1rem 0 0;font-size:.95rem;color:var(--muted);padding-top:.9rem;
  border-top:1px dashed var(--rule-2);max-width:none}

@media(max-width:44rem){
  .hero h1{max-width:none}
  .vc{grid-template-columns:1.8rem 5rem minmax(0,1fr);gap:.4rem}
  .matfig .lab{width:4.2rem;font-size:.64rem}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}}

/* ─────────── stage 4 ─────────── */
.q3{font:600 1.08rem/1.4 var(--sans);color:var(--ink);margin:2rem 0 .6rem;letter-spacing:-.01em}
.math-alt{background:var(--sunk);color:var(--ink);border:1px solid var(--rule-2)}
.math-alt .math-e{color:var(--ink);font-size:1.35rem}
.math-e sup{font-size:.6em}

/* the check, which is the point of the section rather than decoration */
.check{background:#ECF6F0;border:1px solid #BFDFCC;border-radius:14px;padding:1.15rem 1.3rem;
  margin:1.6rem 0}
.check-l{font:600 .6rem var(--mono);letter-spacing:.16em;text-transform:uppercase;
  color:#1B7A4B;margin:0 0 .6rem;max-width:none}
.check p{margin:0 0 .8rem;font-size:1.02rem;max-width:none;color:var(--ink-2)}
.check p:last-child{margin-bottom:0}
.check-n{padding-top:.8rem;border-top:1px dashed #BFDFCC;font-size:.94rem;color:var(--muted)}

.beforeafter{margin:1.6rem 0}
#ba{display:grid;gap:.8rem;grid-template-columns:minmax(0,1fr)}
@media(min-width:46rem){#ba{grid-template-columns:1fr 1fr}}
.ba-p svg{width:100%;height:auto;display:block;background:var(--card);
  border:1px solid var(--rule);border-radius:12px}

/* ─────────── the code, collapsed ─────────── */
.file{padding:0;display:block;border:1px solid var(--rule);border-radius:11px;
  background:var(--card);overflow:hidden}
.file summary{list-style:none;cursor:pointer;padding:.85rem 1.05rem;
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:.9rem;align-items:baseline}
.file summary::-webkit-details-marker{display:none}
.file summary:hover .file-b b{color:var(--plum)}
.file summary::after{content:"show";grid-column:3;font:500 .68rem var(--mono);
  letter-spacing:.1em;text-transform:uppercase;color:var(--plum)}
.file[open] summary::after{content:"hide"}
.file-x{font:500 .68rem var(--mono);color:var(--muted);grid-column:3;grid-row:2;
  text-align:right;margin-top:-.9rem}
.src{margin:0;padding:1.1rem 1.2rem;background:var(--ink);color:#E8E4F0;overflow-x:auto;
  font:400 12.5px/1.75 var(--mono);border-top:1px solid var(--rule)}
.src code{background:none;border:0;padding:0;font:inherit;color:inherit;white-space:pre}
.c-com{color:#8F86A6;font-style:italic}
.c-str{color:#9FD3B0}
.c-kw{color:#C9A6FF}
.c-num{color:#F0B37A}

/* ─── order blindness, shown rather than asserted ─── */
.swap{margin:1.6rem 0}
.swap-r{display:flex;flex-wrap:wrap;gap:.3rem;align-items:center;padding:.7rem 0}
.swap-r+.swap-r{border-top:1px dashed var(--rule-2)}
.swap-n{font:500 .64rem var(--mono);letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);width:5.4rem;flex:none}
.swap-eq{margin:.5rem 0 0;padding-top:.7rem;border-top:1px solid var(--rule);
  font:500 .8rem var(--mono);color:var(--plum);max-width:none}

/* ─── the dial ───
   A slider rather than free dragging on the circle. Dragging a point inside a
   scrolling page steals the touch gesture on a phone, and the slider gives the
   same control with none of that. */
.dialfig{margin:1.8rem 0}
.dial{display:grid;gap:1.2rem;grid-template-columns:minmax(0,1fr);align-items:center;
  background:var(--card);border:1px solid var(--rule);border-radius:14px;padding:1.2rem}
@media(min-width:44rem){.dial{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}}
.dial-art svg{width:100%;height:auto;display:block;max-width:22rem;margin:0 auto}
.dial-lab{font:600 .6rem var(--mono);letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin:0 0 .5rem;max-width:none}
.dial-read{font:500 .95rem/1.9 var(--mono);color:var(--ink);font-variant-numeric:tabular-nums;
  margin-top:.9rem}
.dial-read i{font-style:normal;color:var(--muted);display:inline-block;width:4.1rem}
.dial-read b{color:var(--plum)}
.dial-n{margin:.9rem 0 0;font-size:.9rem;line-height:1.6;color:var(--muted);max-width:none;
  min-height:3.2em}
.d-ring{fill:none;stroke:var(--rule-2);stroke-width:1.4}
.d-ax{stroke:var(--rule-2);stroke-width:1}
.d-arc{fill:none;stroke:var(--plum);stroke-width:2.6;opacity:.5}
.d-arc2{fill:none;stroke:var(--warn);stroke-width:2.6;opacity:.7}
.d-hand{stroke:var(--plum);stroke-width:2.2;stroke-linecap:round}
.d-drop{stroke:var(--muted);stroke-width:1;stroke-dasharray:3 3;opacity:.75}
.d-leg{stroke:var(--pos);stroke-width:3.4;stroke-linecap:round}
.d-leg2{stroke:var(--neg);stroke-width:3.4;stroke-linecap:round}
.d-pt{fill:var(--plum)}
.d-tick{stroke:var(--rule-2);stroke-width:1.4}
.d-tl{font:500 8.5px var(--mono);fill:var(--muted)}
.d-tick-on{stroke:var(--warn);stroke-width:2.2}
.d-tl-on{fill:var(--warn);font-weight:700;font-size:10px}
.d-lg{font:600 10px var(--mono)}

/* range inputs, styled once for both widgets */
.dial-slider,.hand-slider{-webkit-appearance:none;appearance:none;width:100%;height:1.5rem;
  background:none;cursor:pointer;display:block;margin:0}
.dial-slider::-webkit-slider-runnable-track,.hand-slider::-webkit-slider-runnable-track{
  height:.42rem;border-radius:99px;background:var(--sunk);border:1px solid var(--rule-2)}
.dial-slider::-moz-range-track,.hand-slider::-moz-range-track{
  height:.42rem;border-radius:99px;background:var(--sunk);border:1px solid var(--rule-2)}
.dial-slider::-webkit-slider-thumb,.hand-slider::-webkit-slider-thumb{-webkit-appearance:none;
  width:1.35rem;height:1.35rem;border-radius:50%;background:var(--plum);border:3px solid #fff;
  box-shadow:0 1px 4px rgba(25,23,34,.3);margin-top:-.53rem}
.dial-slider::-moz-range-thumb,.hand-slider::-moz-range-thumb{
  width:1.35rem;height:1.35rem;border-radius:50%;background:var(--plum);border:3px solid #fff;
  box-shadow:0 1px 4px rgba(25,23,34,.3)}
.dial-slider:focus-visible,.hand-slider:focus-visible{outline:2px solid var(--plum);
  outline-offset:4px;border-radius:99px}

/* ─── the failed attempts ───
   Set apart from the running text because a reader skimming must never mistake
   a rejected idea for the answer. The verdict line closes each one. */
.try{background:var(--card);border:1px solid var(--rule);border-left:3px solid var(--neg);
  border-radius:0 12px 12px 0;padding:1.1rem 1.3rem;margin:1.6rem 0}
.try p{max-width:62ch;font-size:1.04rem}
.try p:last-child{margin-bottom:0}
.try-h{font:600 1.06rem/1.5 var(--sans);color:var(--ink);margin-bottom:.7rem}
.try-n{display:inline-block;background:var(--sunk);border-radius:5px;padding:.12em .45em;
  margin-right:.5rem;font:600 .64rem var(--mono);letter-spacing:.11em;text-transform:uppercase;
  color:var(--muted);vertical-align:.14em}
.try-v{font:600 .88rem var(--mono);color:var(--neg);padding-top:.8rem;
  border-top:1px dashed var(--rule-2)}
.try-r{background:var(--plum-w);border:1px solid var(--plum-b);border-radius:10px;
  padding:.75rem 1rem;font-size:1.02rem;max-width:none;color:var(--ink-2);margin:-.7rem 0 1.6rem}
.try-r b{color:var(--plum)}
.try-ok{border-left-color:#1B7A4B}

/* the scorecard */
.score td:not(:first-child){font:600 .8rem var(--mono);text-align:center}
.score .ok{color:#1B7A4B}
.score .no{color:var(--neg)}
.score tr.win td{background:var(--plum-w)}
.score tr.win td:first-child{color:var(--plum)}

/* ─── the worked example ───
   Wide by nature: sixteen columns of numbers. It scrolls inside its own box
   rather than being squeezed to illegibility. */
.workedfig{margin:1.8rem 0}
#worked{overflow-x:auto;padding-bottom:.3rem}
.wk{min-width:44rem}
.wk-t{font:600 .68rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--plum);
  margin:0 0 .5rem;max-width:none}
.wk+.wk{margin-top:1.6rem;padding-top:1.4rem;border-top:1px solid var(--rule)}
.wk-r{display:grid;grid-template-columns:9.5rem repeat(16,minmax(0,1fr));gap:2px;
  align-items:center;margin-bottom:2px}
.wk-l{font:500 .68rem var(--mono);color:var(--ink-2);text-align:right;padding-right:.5rem;
  white-space:nowrap}
.wk-v{font:500 .68rem var(--mono);text-align:center;padding:.28rem 0;border-radius:4px;
  background:var(--sunk);color:var(--ink-2);font-variant-numeric:tabular-nums}
.wk-h .wk-v{background:none;color:var(--muted);font-size:.6rem;padding:0 0 .2rem}
.wk-sum .wk-v{background:var(--plum-w);color:var(--plum);font-weight:700}
.wk-sum .wk-l{color:var(--plum);font-weight:700}
.wk-op{color:var(--plum);font-weight:700}

/* ─── binary, the same idea in a form everyone already knows ─── */
.binfig{margin:1.6rem 0}
#binary{overflow-x:auto}
.bin{border-collapse:collapse;font:500 .82rem var(--mono);min-width:20rem}
.bin th{padding:0 .5rem .45rem;border-bottom:2px solid var(--ink);
  font:600 .6rem var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.bin td{padding:.24rem .5rem;text-align:center;border-bottom:1px solid var(--rule);
  color:var(--ink-2);font-variant-numeric:tabular-nums}
.bin td:first-child{color:var(--muted)}
.bin .b1{color:var(--plum);font-weight:700;background:var(--plum-w)}
.bin-n{margin:.9rem 0 0;font-size:.95rem;line-height:1.65;color:var(--muted);max-width:64ch}
.bin-n b{color:var(--ink)}

/* ─── one row, cut into its pairs ─── */
.rulerfig{margin:1.6rem 0}
#ruler{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem}
@media(min-width:30rem){#ruler{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(min-width:56rem){#ruler{grid-template-columns:repeat(8,minmax(0,1fr))}}
.rl-g{background:var(--card);border:1px solid var(--rule);border-radius:10px;padding:.5rem .4rem;
  min-width:0}
.rl-c{font:600 .6rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--plum);
  text-align:center;margin:0 0 .4rem;max-width:none}
.rl-p{display:grid;grid-template-columns:1fr 1fr;gap:.25rem}
.rl-cell{background:var(--sunk);border-radius:6px;padding:.3rem .1rem;text-align:center;min-width:0}
.rl-t{display:block;font:600 .56rem var(--mono);letter-spacing:.06em;color:var(--muted)}
.rl-v{display:block;font:600 .74rem var(--mono);color:var(--ink);
  font-variant-numeric:tabular-nums;margin:.12rem 0}
.rl-i{display:block;font:500 .54rem var(--mono);color:var(--muted)}

/* ─── the eight hands ─── */
.handfig{margin:1.8rem 0}
.hand-bar{display:flex;align-items:center;gap:.7rem;margin-bottom:1rem;flex-wrap:wrap}
.hand-bar .hand-slider{flex:1 1 12rem;width:auto}
.hand-b{font:600 .9rem var(--mono);color:var(--plum);background:var(--card);
  border:1px solid var(--rule-2);border-radius:8px;width:2.2rem;height:2.2rem;flex:none;
  cursor:pointer;line-height:1}
.hand-b:hover{border-color:var(--plum);background:var(--plum-w)}
.hand-pos{font:500 .84rem var(--mono);color:var(--ink);white-space:nowrap;
  font-variant-numeric:tabular-nums}
.hand-pos em{font-style:normal;color:var(--plum);font-weight:700}
#hands{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem}
@media(max-width:34rem){#hands{grid-template-columns:repeat(2,minmax(0,1fr))}}
.hd{background:var(--card);border:1px solid var(--rule);border-radius:11px;padding:.55rem .3rem .4rem;
  text-align:center;min-width:0}
.hd svg{width:100%;height:auto;display:block;max-width:5.4rem;margin:0 auto}
.hd-n{font:600 .64rem var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  margin:.35rem 0 0;max-width:none}
.hd-w{font:500 .66rem var(--mono);color:var(--plum);margin:.1rem 0 0;max-width:none;
  font-variant-numeric:tabular-nums}
.h-ring{fill:none;stroke:var(--rule-2);stroke-width:1.4}
.h-ghost{stroke:var(--rule-2);stroke-width:2.4;stroke-linecap:round}
.h-hand{stroke:var(--plum);stroke-width:2.6;stroke-linecap:round}
.h-pt{fill:var(--plum)}
.hand-row{margin:.9rem 0 0;font:500 .74rem/1.8 var(--mono);color:var(--ink-2);max-width:none;
  font-variant-numeric:tabular-nums;overflow-x:auto;white-space:nowrap;padding-bottom:.2rem}
.hand-row b{color:var(--plum)}

/* the clock table, which does the work the notation was failing to do */
.clocks{margin:1.6rem 0}
.ck{display:grid;grid-template-columns:4.2rem minmax(0,1fr) auto;gap:.7rem;align-items:center;
  padding:.42rem 0;border-bottom:1px solid var(--rule)}
.ck:first-child{border-top:1px solid var(--rule)}
.ck-i{font:500 .76rem var(--mono);color:var(--muted)}
.ck-b{height:.55rem;border-radius:99px;background:var(--plum);opacity:.8}
.ck-p{font:500 .78rem var(--mono);color:var(--ink);white-space:nowrap;
  font-variant-numeric:tabular-nums}
.ck-w{min-width:0}
.ck-om{font-style:normal;text-transform:none}
.ck-w b{display:block;font:600 .74rem var(--mono);color:var(--ink);
  font-variant-numeric:tabular-nums;margin-bottom:.15rem}

/* in-figure furniture for the two heatmaps */
.mat-h .lab{color:var(--muted);font-size:.6rem;text-transform:uppercase;letter-spacing:.08em}
.mat-cn{font:500 .58rem var(--mono);color:var(--muted);text-align:center;height:auto;
  background:none}
.mat-key{font:500 .72rem var(--mono);color:var(--muted);margin:0 0 .5rem;max-width:none}
.mat-key .mk-neg,.mat-key .mk-pos{display:inline-block;width:.85rem;height:.85rem;
  border-radius:3px;vertical-align:-.12em}
.mat-key .mk-neg{background:var(--neg)}
.mat-key .mk-pos{background:var(--pos)}
.ck-h{display:grid;grid-template-columns:4.2rem minmax(0,1fr) auto;gap:.7rem;
  font:600 .6rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
  padding-bottom:.4rem}


/* ═══════════════ stage 5 ═══════════════ */

/* the two "it" tokens, each with its referent picked out */
.itfig{margin:1.6rem 0}
.itrow{background:var(--card);border:1px solid var(--rule);border-radius:12px;
  padding:.9rem 1rem;margin-bottom:.6rem}
.itrow-n{margin:.7rem 0 0;font-size:.95rem;color:var(--muted);max-width:none}
.itrow-n b{color:var(--ink)}
.tk-it{background:var(--warn-w);border-color:var(--warn-b);color:var(--warn);font-weight:700}
.tk-ref{background:var(--plum-w);border-color:var(--plum-b);color:var(--plum);font-weight:700}

/* a dot product, written out in full */
.dotfig{margin:1.6rem 0}
.dp-h{font-size:1rem;color:var(--ink-2);margin:0 0 .8rem;max-width:none}
.dp-h b{font-family:var(--mono);font-size:.9em;color:var(--plum)}
.dp-g{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.35rem}
@media(min-width:34rem){.dp-g{grid-template-columns:repeat(8,minmax(0,1fr))}}
.dp-c{background:var(--card);border:1px solid var(--rule);border-radius:8px;
  padding:.35rem .2rem;text-align:center;font-variant-numeric:tabular-nums;min-width:0}
.dp-i{display:block;font:500 .54rem var(--mono);color:var(--muted)}
.dp-a,.dp-b{display:block;font:500 .66rem var(--mono);color:var(--ink-2)}
.dp-x{display:block;font:400 .54rem var(--mono);color:var(--muted);line-height:1}
.dp-e{display:block;font:700 .7rem var(--mono);color:var(--plum);margin-top:.15rem;
  border-top:1px solid var(--rule);padding-top:.15rem}
.dp-t{margin:.9rem 0 0;font-size:1.02rem;color:var(--ink-2);max-width:none}
.dp-t b{font-family:var(--mono);color:var(--plum);font-size:1.05em}
.dp-t span{font-family:var(--mono);color:var(--ink)}

/* softmax, and the token step through, share a row layout */
.smfig,.stepsfig{margin:1.6rem 0}
#softmax,.st{overflow-x:auto}
.sm-r,.st-r{display:grid;grid-template-columns:9.5rem repeat(5,minmax(4.4rem,1fr));
  gap:2px;align-items:center;margin-bottom:2px;min-width:34rem}
.st-r{grid-template-columns:9.5rem repeat(8,minmax(3.6rem,1fr));min-width:44rem}
.sm-l,.st-l{font:500 .68rem var(--mono);color:var(--ink-2);text-align:right;
  padding-right:.5rem;white-space:nowrap}
.sm-v,.st-v{font:500 .72rem var(--mono);text-align:center;padding:.3rem .1rem;
  border-radius:4px;background:var(--sunk);color:var(--ink-2);
  font-variant-numeric:tabular-nums}
.sm-h .sm-v,.st-h .st-v{background:none;color:var(--ink);font-weight:600;font-size:.7rem;
  line-height:1.35}
.sm-h i,.st-h i{font-style:normal;color:var(--plum)}
.st-p{font-size:.58rem;color:var(--muted);font-weight:400}
.sm-w .sm-v,.st-w .st-v{background:var(--plum-w);color:var(--plum);font-weight:700}
.st-s .st-v{background:none;color:var(--muted);font-size:.66rem}
.sm-n{margin:.8rem 0 0;font-size:.92rem;color:var(--muted);max-width:none}

/* the attention picker */
.attnfig{margin:1.8rem 0}
.at-heads{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:1rem}
.at-h{font:500 .78rem var(--sans);padding:.45rem .8rem;border-radius:99px;cursor:pointer;
  background:var(--card);border:1px solid var(--rule-2);color:var(--ink-2)}
.at-h:hover{border-color:var(--plum);color:var(--plum)}
.at-h.on{background:var(--plum);border-color:var(--plum);color:#fff;font-weight:600}
.at-lab{font:600 .6rem var(--mono);letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin:1.1rem 0 .5rem;max-width:none}
.at-lab b{color:var(--ink);text-transform:none;letter-spacing:0;font-size:1.15em}
.tk-pick{cursor:pointer}
.tk-pick:hover{border-color:var(--plum);background:var(--plum-w)}
.tk-pick.on{background:var(--plum);border-color:var(--plum);color:#fff;font-weight:700}
.tk-pick.on .n{color:#E4D9FB}
.tk-blocked{opacity:.28;text-decoration:line-through}
.tk-att .n{color:inherit;opacity:.55}
#atTop{margin-top:1rem;display:grid;gap:.3rem;max-width:34rem}
.at-row{display:grid;grid-template-columns:8rem minmax(0,1fr) 3.2rem;gap:.6rem;
  align-items:center}
.at-w{font:500 .82rem var(--mono);color:var(--ink);white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis}
.at-pos{color:var(--muted);margin-left:.35rem;font-size:.86em}
.at-bar{background:var(--sunk);border-radius:99px;height:.62rem;overflow:hidden}
.at-bar span{display:block;height:100%;background:var(--plum);border-radius:99px}
.at-n{font:600 .76rem var(--mono);color:var(--plum);text-align:right;
  font-variant-numeric:tabular-nums}
.cell-off{background:var(--rule);opacity:.25}

/* the distance ladder, which is the result of the stage */
.distfig{margin:1.6rem 0}
.cd{display:grid;grid-template-columns:14rem minmax(0,1fr) 3.6rem;gap:.7rem;align-items:center;
  padding:.55rem 0;border-bottom:1px solid var(--rule)}
.cd:first-child{border-top:1px solid var(--rule)}
.cd-l{font-size:.92rem;color:var(--ink-2)}
.cd-b{background:var(--sunk);border-radius:99px;height:.75rem;overflow:hidden}
.cd-b span{display:block;height:100%;background:var(--rule-2);border-radius:99px}
.cd-on .cd-b span{background:var(--plum)}
.cd-on .cd-l,.cd-on .cd-v{color:var(--plum);font-weight:700}
.cd-v{font:600 .86rem var(--mono);text-align:right;color:var(--ink);
  font-variant-numeric:tabular-nums}
.cd-n{grid-column:2/4;font-size:.8rem;color:var(--muted);margin-top:-.3rem}
@media(max-width:40rem){
  .cd{grid-template-columns:minmax(0,1fr) 3.6rem}
  .cd-l{grid-column:1/3}
  .cd-b{grid-column:1/2}
  .at-row{grid-template-columns:6.5rem minmax(0,1fr) 3.2rem}
}