/* ============================================================
   One Advisor for the Whole World? — explorable explanation
   ============================================================

   The palette encodes the argument and nothing else:
     --advice     the number a model gives
     --warranted  what local fundamentals prescribe
   Everything else is paper.
*/

:root {
  --ground:      #faf7f2;
  --ground-2:    #f2ede4;
  --card:        #fffdf9;
  --ink:         #1c1e26;
  --ink-2:       #4a4d58;
  --muted:       #85837c;
  --rule:        #e3ddd1;
  --rule-2:      #cfc7b7;

  --advice:      #c9541f;
  --on-advice:   #fffdf9;
  --advice-soft: #f3dccd;
  --advice-dim:  #e0a480;
  --warranted:   #21657f;
  --warranted-soft:#d3e3ea;
  --warranted-dim: #7aa9bd;
  --gap:         #a58a3c;
  --flat:        #6f6c64;
  --void:        #ece6da;

  --ok:          #3d7a4e;
  --alert:       #a33a2a;

  --serif: ui-serif, Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, Cambria, serif;
  --sans:  ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono:  ui-monospace, "SF Mono", SFMono-Regular, "Cascadia Mono", Menlo, Consolas, monospace;

  --topbar-h: 62px;
  --ruler-h: 15px;
  --rail-h: 58px;
  --slide-max: 1080px;
  --prose-max: 34rem;

  --shadow: 0 1px 2px rgba(28,30,38,.05), 0 8px 28px -12px rgba(28,30,38,.18);
  --ease: cubic-bezier(.22,.61,.36,1);
}

:root:not([data-theme="light"]) {
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:      #14161c;
    --ground-2:    #1b1e26;
    --card:        #1a1d25;
    --ink:         #e9e5dc;
    --ink-2:       #b9b5ab;
    --muted:       #8b8880;
    --rule:        #2c303a;
    --rule-2:      #3d424e;

    --advice:      #ef8b4e;
    --on-advice:   #21150c;
    --advice-soft: #43291b;
    --advice-dim:  #9a5c34;
    --warranted:   #5fb0d0;
    --warranted-soft:#16303b;
    --warranted-dim: #3c7a92;
    --gap:         #cbab55;
    --flat:        #7d7a73;
  --void:        #23272f;
    --void:        #23272f;

    --ok:          #6ab07d;
    --alert:       #e0705c;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 30px -14px rgba(0,0,0,.7);
  }
}

:root[data-theme="dark"] {
  --ground:      #14161c;
  --ground-2:    #1b1e26;
  --card:        #1a1d25;
  --ink:         #e9e5dc;
  --ink-2:       #b9b5ab;
  --muted:       #8b8880;
  --rule:        #2c303a;
  --rule-2:      #3d424e;
  --advice:      #ef8b4e;
  --on-advice:   #21150c;
  --advice-soft: #43291b;
  --advice-dim:  #9a5c34;
  --warranted:   #5fb0d0;
  --warranted-soft:#16303b;
  --warranted-dim: #3c7a92;
  --gap:         #cbab55;
  --flat:        #7d7a73;
  --ok:          #6ab07d;
  --alert:       #e0705c;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 30px -14px rgba(0,0,0,.7);
}

/* ---------- base ---------- */

/* Links had no rule at all, so every anchor rendered in browser-default blue
   and violet — off-palette in light, and about 2.3:1 in dark. */
a {
  color: var(--warranted);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover { color: var(--advice); }
a:focus-visible {
  outline: 2px solid var(--advice);
  outline-offset: 2px;
  border-radius: 2px;
}


* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--card); color: var(--ink); padding: .6rem 1rem;
}
.skip:focus { left: 8px; top: 8px; }

button { font: inherit; color: inherit; cursor: pointer; }
svg { fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

::selection { background: var(--advice-soft); }

/* ---------- top bar ---------- */

#topbar {
  position: fixed; inset: 0 0 auto 0; height: var(--topbar-h); z-index: 40;
  display: flex; align-items: center; gap: .5rem;
  padding: 0 max(14px, env(safe-area-inset-left)) 0 max(14px, env(safe-area-inset-right));
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.tb-item {
  display: inline-flex; align-items: center; gap: .5rem;
  background: none; border: 0; padding: .35rem .5rem; border-radius: 7px;
  color: var(--ink-2);
}
.tb-item:hover { background: var(--ground-2); color: var(--ink); }
.tb-home { margin-left: -.5rem; }
.tb-mark {
  width: 11px; height: 11px; flex: none; border-radius: 50%;
  background: var(--advice);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--advice) 18%, transparent);
}
.tb-title {
  font-family: var(--serif); font-size: .95rem; font-weight: 600;
  letter-spacing: -.01em; white-space: nowrap;
}
.tb-spacer { flex: 1; }
.tb-deck {
  font-family: var(--sans); font-size: .72rem; letter-spacing: .09em;
  text-transform: uppercase; color: var(--muted); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; max-width: 44vw;
}
.tb-btn { font-family: var(--sans); font-size: .78rem; border: 1px solid var(--rule); }

@media (max-width: 620px) {
  .tb-title { display: none; }
  .tb-btn span { display: none; }
}

/* ---------- stage ---------- */

#stage {
  min-height: 100vh;
  padding: calc(var(--topbar-h) + 2.2rem) max(18px, env(safe-area-inset-left)) calc(var(--rail-h) + 2.2rem) max(18px, env(safe-area-inset-right));
  outline: none;
}

.slide {
  max-width: var(--slide-max);
  margin: 0 auto;
  min-height: calc(100vh - var(--topbar-h) - var(--rail-h) - 4.4rem);
  display: flex; flex-direction: column; justify-content: center;
  animation: rise .34s var(--ease) both;
}
.slide.top { justify-content: flex-start; }

@keyframes rise {
  from { opacity: 0; transform: translateY(9px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .slide { animation: none; }
  * { transition-duration: .01ms !important; }
}

/* Short viewports — the common 1280x720 laptop — were pushing doors and
   controls behind the fixed rail. Tighten the vertical rhythm rather than
   let the reader lose the way forward. */
@media (max-height: 850px) {
  #stage {
    padding-top: calc(var(--topbar-h) + 1.1rem);
    padding-bottom: calc(var(--rail-h) + 1.1rem);
  }
  .slide { min-height: calc(100vh - var(--topbar-h) - var(--rail-h) - 2.2rem); }
  h1.big  { font-size: clamp(1.7rem, 3.6vw, 2.35rem); margin-bottom: .6rem; }
  h2.head { font-size: clamp(1.25rem, 2.4vw, 1.6rem);  margin-bottom: .55rem; }
  .slide p { margin-block: .55rem; }
  .stage-box { padding: .75rem .9rem; }
  .door { padding: .8rem .95rem; }
  .stack { gap: .7rem; }
  .doors { margin-top: .9rem !important; }
}

/* "there is more below" — a soft fade above the rail, only while it is true */
body.has-more::after {
  content: "";
  position: fixed; left: 0; right: 0;
  bottom: var(--rail-h); height: 4.5rem;
  background: linear-gradient(to top, var(--ground), transparent);
  pointer-events: none; z-index: 3;
}

/* ---------- the standing ruler ---------- */
/* One 0-100 track promoted to the furniture. It carries the band the advice
   occupies and a needle at the panel average, and it never moves. */
#topbar { align-items: flex-start; padding-top: 5px; }
#ruler {
  position: fixed; z-index: 41;
  top: calc(var(--topbar-h) - var(--ruler-h) - 1px); left: 0; right: 0;
  height: var(--ruler-h);
  pointer-events: none;
}
#ruler svg { width: 100%; height: var(--ruler-h); display: block; overflow: visible; }
.rl-track  { stroke: var(--rule-2); stroke-width: 1; }
.rl-tick   { stroke: var(--rule-2); stroke-width: 1; }
.rl-band   { fill: var(--advice); opacity: .10; stroke: none; }
.rl-needle { stroke: var(--advice); stroke-width: 2.5; stroke-linecap: round; }
.rl-ghost  { stroke: var(--warranted); stroke-width: 2; stroke-linecap: round; opacity: .85; }
.rl-lab {
  fill: var(--muted); stroke: none;
  font-family: var(--mono); font-size: 8px; letter-spacing: .04em;
}

/* ---------- typography ---------- */

.eyebrow {
  font-family: var(--sans); font-size: .7rem; font-weight: 600;
  letter-spacing: .13em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 .9rem;
}
h1.big {
  font-size: clamp(1.9rem, 4.6vw, 3.1rem); line-height: 1.1;
  letter-spacing: -.022em; font-weight: 600; margin: 0 0 1rem;
  max-width: 20ch;
}
h2.head {
  font-size: clamp(1.35rem, 2.8vw, 1.95rem); line-height: 1.2;
  letter-spacing: -.018em; font-weight: 600; margin: 0 0 .85rem;
  max-width: 26ch;
}
h3.sub {
  font-family: var(--sans); font-size: .8rem; font-weight: 650;
  letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 .6rem;
}
p { margin: 0 0 1rem; max-width: var(--prose-max); }
p.lede { font-size: 1.14rem; line-height: 1.55; color: var(--ink); }
p.note {
  font-family: var(--sans); font-size: .84rem; line-height: 1.55;
  color: var(--muted); max-width: 46rem;
}
p.kicker {
  font-size: 1.2rem; line-height: 1.45; max-width: 30rem;
  border-left: 2px solid var(--advice); padding-left: 1rem;
}
.center { margin-left: auto; margin-right: auto; text-align: center; }
.center p { margin-left: auto; margin-right: auto; }

em.term { font-style: normal; font-weight: 600; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: .94em; }
.advice-t { color: var(--advice); font-weight: 600; }
.warranted-t { color: var(--warranted); font-weight: 600; }
.flat-t { color: var(--flat); }

.stack > * + * { margin-top: 1.1rem; }
.wide { max-width: none; }

/* ---------- layout helpers ---------- */

.cols {
  display: grid; gap: clamp(1.4rem, 3.5vw, 3rem);
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: center;
}
.cols.narrow-first { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); }
.cols.even { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols.top { align-items: start; }
@media (max-width: 860px) {
  .cols, .cols.narrow-first, .cols.even { grid-template-columns: minmax(0,1fr); }
}

.figure { margin: 0; }
.figure figcaption {
  font-family: var(--sans); font-size: .78rem; line-height: 1.5;
  color: var(--muted); margin-top: .7rem; max-width: 52rem;
}

.stage-box {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 14px;
  padding: clamp(.9rem, 2vw, 1.4rem);
  box-shadow: var(--shadow);
}

/* fixed-height demo stage: never changes size between slides in a deck */
.demo { min-height: 420px; display: flex; flex-direction: column; }
.demo > svg { width: 100%; height: auto; display: block; }
@media (max-width: 620px) { .demo { min-height: 340px; } }

/* On a phone a 660-unit chart scaled into a 360px column renders its 11px
   labels at about 6px. Give the figure a floor and let its own box scroll,
   rather than shrinking the text past reading size. */
@media (max-width: 700px) {
  .stage-box { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .stage-box > svg,
  .stage-box > .stack > svg { min-width: 700px; }
}

/* ---------- doors (branch links) ---------- */

.door {
  display: block; width: 100%; text-align: left;
  background: var(--card); border: 1px solid var(--rule-2); border-radius: 12px;
  padding: 1rem 1.15rem; margin: 0; color: inherit;
  transition: border-color .18s, transform .18s, box-shadow .18s;
}
.door:hover, .door:focus-visible {
  border-color: var(--advice); transform: translateY(-2px); box-shadow: var(--shadow);
}
.door .door-q {
  font-size: 1.05rem; font-weight: 600; letter-spacing: -.01em;
  margin: 0 0 .35rem; display: block; max-width: none;
}
.door .door-b {
  font-family: var(--sans); font-size: .87rem; line-height: 1.5;
  color: var(--ink-2); margin: 0; max-width: none;
}
.door .door-go {
  font-family: var(--sans); font-size: .76rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--advice); margin-top: .7rem; display: block;
}
.door.seen { opacity: .62; }
.door.seen .door-go::after { content: " — visited"; color: var(--muted); }
.doors { display: grid; gap: .9rem; max-width: 56rem; }
.doors.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
@media (max-width: 760px) { .doors.two { grid-template-columns: minmax(0,1fr); } }

/* an inline curiosity door inside prose */
.aside-door {
  background: none; border: 0; padding: 0; margin: 0;
  font: inherit; color: var(--advice); text-align: left;
  border-bottom: 1px dashed currentColor;
}
.aside-door:hover { border-bottom-style: solid; }
.aside-door::after { content: " \2192"; }

.sidenote {
  font-family: var(--sans); font-size: .86rem; color: var(--ink-2);
  border-left: 2px solid var(--rule-2); padding-left: .9rem; margin: 1.2rem 0 0;
  max-width: 30rem;
}

/* ---------- controls ---------- */

.ctl { display: flex; flex-direction: column; gap: .35rem; }
.ctl-label {
  font-family: var(--sans); font-size: .76rem; font-weight: 600;
  letter-spacing: .05em; text-transform: uppercase; color: var(--muted);
  display: flex; justify-content: space-between; align-items: baseline; gap: .6rem;
}
/* The readout gains and loses a trailing clause as the slider moves, which
   rewrapped it from two lines to one and jumped the chart under the cursor. */
.ctl-val {
  font-family: var(--mono); font-size: .92rem; color: var(--ink);
  letter-spacing: 0; text-transform: none;
  min-height: 2.6em; display: flex; align-items: center; justify-content: flex-end;
  text-align: right;
}
@media (min-width: 700px) { .ctl-val { min-height: 1.3em; } }

input[type=range] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 26px; background: none; cursor: grab; margin: 0;
}
input[type=range]:active { cursor: grabbing; }
input[type=range]::-webkit-slider-runnable-track {
  height: 4px; border-radius: 2px; background: var(--rule-2);
}
input[type=range]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--rule-2); }
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 20px; height: 20px; margin-top: -8px;
  border-radius: 50%; background: var(--card); border: 2px solid var(--advice);
  box-shadow: 0 1px 4px rgba(0,0,0,.18);
}
input[type=range]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--card); border: 2px solid var(--advice);
}
input[type=range]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px color-mix(in srgb, var(--advice) 25%, transparent); }

select, .pill-input {
  font-family: var(--sans); font-size: .9rem;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--rule-2); border-radius: 8px; padding: .45rem .65rem;
}

.seg {
  display: inline-flex; background: var(--ground-2); border: 1px solid var(--rule);
  border-radius: 9px; padding: 3px; gap: 2px; flex-wrap: wrap;
}
.seg button {
  font-family: var(--sans); font-size: .82rem; font-weight: 500;
  background: none; border: 0; border-radius: 6px; padding: .4rem .8rem;
  color: var(--ink-2); white-space: nowrap;
}
.seg button:hover { color: var(--ink); }
.seg button[aria-pressed="true"] {
  background: var(--card); color: var(--ink); font-weight: 650;
  box-shadow: 0 1px 2px rgba(0,0,0,.08);
}

.btn {
  font-family: var(--sans); font-size: .88rem; font-weight: 600;
  background: var(--advice); color: var(--on-advice); border: 0;
  border-radius: 9px; padding: .6rem 1.1rem;
  transition: filter .16s, transform .16s;
}
.btn:hover { filter: brightness(1.07); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: none; color: var(--ink); border: 1px solid var(--rule-2); }
.btn.ghost:hover { border-color: var(--ink-2); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.linkish {
  background: none; border: 0; padding: 0;
  font-family: var(--sans); font-size: .82rem; color: var(--muted);
  text-decoration: underline; text-underline-offset: 3px;
}
.linkish:hover { color: var(--ink); }

.chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip {
  font-family: var(--sans); font-size: .82rem;
  background: var(--card); border: 1px solid var(--rule-2); border-radius: 999px;
  padding: .34rem .8rem; color: var(--ink-2);
  transition: border-color .15s, background .15s, color .15s;
}
.chip:hover { border-color: var(--ink-2); color: var(--ink); }
.chip[aria-pressed="true"] {
  background: var(--advice); border-color: var(--advice); color: var(--on-advice); font-weight: 600;
}

/* ---------- readouts ---------- */

.readout { display: flex; flex-wrap: wrap; gap: 1.6rem; align-items: flex-start; }
.ro-item { min-width: 5.5rem; }
.ro-k {
  font-family: var(--sans); font-size: .7rem; font-weight: 600;
  letter-spacing: .09em; text-transform: uppercase; color: var(--muted);
  margin: 0 0 .12rem; display: block;
}
.ro-v {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem); line-height: 1.05; letter-spacing: -.02em;
  display: block;
}
.ro-v.sm { font-size: 1.25rem; }
.ro-sub { font-family: var(--sans); font-size: .76rem; color: var(--muted); display: block; margin-top: .15rem; }

.bignum {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: clamp(3rem, 11vw, 6.5rem); line-height: .95; letter-spacing: -.045em;
  font-weight: 500;
}

/* ---------- prompt box ---------- */

.promptbox {
  background: var(--card); border: 1px solid var(--rule-2); border-radius: 14px;
  padding: 1.3rem 1.4rem; box-shadow: var(--shadow); max-width: 40rem;
  font-size: 1.02rem; line-height: 1.62;
}
.promptbox .pb-head {
  font-family: var(--sans); font-size: .7rem; letter-spacing: .11em;
  text-transform: uppercase; color: var(--muted);
  display: flex; align-items: center; gap: .5rem; margin-bottom: .85rem;
}
.promptbox .pb-head::after { content: ""; flex: 1; height: 1px; background: var(--rule); }
.promptbox p { margin: 0 0 .75rem; max-width: none; }
.promptbox p:last-child { margin-bottom: 0; }

.slot {
  display: inline-flex; align-items: center; gap: .3rem;
  background: var(--advice-soft); color: var(--advice);
  border: 1px solid color-mix(in srgb, var(--advice) 35%, transparent);
  border-radius: 7px; padding: .06em .45em; margin: 0 .1em;
  font-family: var(--sans); font-size: .92em; font-weight: 600;
  cursor: pointer; transition: background .15s;
}
.slot:hover { background: color-mix(in srgb, var(--advice) 22%, transparent); }
.slot::after {
  content: ""; width: 0; height: 0; margin-left: .1em;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
}
.slot.static { cursor: default; }
.slot.static::after { display: none; }
.slot-wrap { position: relative; display: inline-block; }
.slot-wrap select {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; cursor: pointer; border: 0; padding: 0; appearance: none;
}
.slot-wrap:focus-within .slot {
  outline: 2px solid var(--advice); outline-offset: 2px;
}

.blink { animation: blink 1.3s steps(2) infinite; }
@keyframes blink { 0%,49% { opacity: 1; } 50%,100% { opacity: .25; } }

/* ---------- rail ---------- */

#rail {
  position: fixed; inset: auto 0 0 0; height: var(--rail-h); z-index: 40;
  display: flex; align-items: center; justify-content: center; gap: .6rem;
  padding: 0 14px calc(env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--ground) 90%, transparent);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--rule);
}
.rail-arrow {
  background: none; border: 1px solid var(--rule); border-radius: 999px;
  width: 34px; height: 34px; display: grid; place-items: center; color: var(--ink-2);
  transition: border-color .15s, color .15s, background .15s;
}
.rail-arrow:hover:not(:disabled) { color: var(--ink); border-color: var(--ink-2); background: var(--card); }
.rail-arrow:disabled { opacity: .28; cursor: default; }

.dots { display: flex; align-items: center; gap: 5px; max-width: 60vw; flex-wrap: wrap; justify-content: center; }
.dot {
  width: 26px; height: 5px; border-radius: 3px; border: 0; padding: 0;
  background: var(--rule-2); transition: background .18s, transform .18s;
}
.dot:hover:not(:disabled) { transform: scaleY(1.8); }
.dot[aria-selected="true"] { background: var(--advice); }
.dot.seen { background: var(--advice-dim); }
.dot:disabled { cursor: default; opacity: .5; }
@media (max-width: 620px) { .dot { width: 18px; } }

/* ---------- map ---------- */

.overlay { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 16px; }
.overlay[hidden] { display: none; }
.overlay-scrim { position: absolute; inset: 0; background: color-mix(in srgb, var(--ink) 42%, transparent); backdrop-filter: blur(3px); }
.overlay-panel {
  position: relative; background: var(--ground); border: 1px solid var(--rule-2);
  border-radius: 16px; box-shadow: 0 24px 70px -20px rgba(0,0,0,.4);
  width: min(880px, 100%); max-height: min(86vh, 820px);
  display: flex; flex-direction: column; overflow: hidden;
  animation: rise .22s var(--ease) both;
}
.overlay-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.2rem .8rem; border-bottom: 1px solid var(--rule);
}
.overlay-head h2 { margin: 0; font-size: 1.05rem; letter-spacing: -.01em; }
.overlay-close { background: none; border: 0; font-size: 1.6rem; line-height: 1; color: var(--muted); padding: 0 .2rem; }
.overlay-close:hover { color: var(--ink); }
#mapBody { padding: 1.1rem 1.2rem; overflow-y: auto; }
.overlay-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .75rem 1.2rem; border-top: 1px solid var(--rule);
  font-family: var(--sans); font-size: .8rem; color: var(--muted);
}

.map-spine { display: grid; gap: .45rem; }
.map-row { display: flex; align-items: stretch; gap: .55rem; }
.map-row.branch { margin-left: 1.6rem; }
.map-node {
  flex: 1; display: flex; align-items: center; gap: .7rem; text-align: left;
  background: var(--card); border: 1px solid var(--rule); border-radius: 10px;
  padding: .6rem .8rem; transition: border-color .15s, transform .15s;
}
.map-node:hover:not(:disabled) { border-color: var(--advice); transform: translateX(2px); }
.map-node:disabled { opacity: .42; cursor: not-allowed; background: none; }
.map-node[data-here="1"] { border-color: var(--advice); background: var(--card); box-shadow: inset 3px 0 0 var(--advice); }
.map-n {
  font-family: var(--mono); font-size: .72rem; color: var(--muted);
  width: 1.4rem; flex: none;
}
.map-t { font-size: .95rem; font-weight: 600; letter-spacing: -.01em; flex: 1; }
.map-meta { font-family: var(--sans); font-size: .74rem; color: var(--muted); white-space: nowrap; }
.map-bar { display: flex; gap: 2px; flex: none; }
.map-tick { width: 5px; height: 14px; border-radius: 1px; background: var(--rule-2); }
.map-tick.on { background: var(--advice); }
.map-group {
  font-family: var(--sans); font-size: .7rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--muted); margin: 1.1rem 0 .45rem;
}
.map-group:first-child { margin-top: 0; }
.map-join {
  width: 1.6rem; flex: none; position: relative; margin-left: -1.6rem;
}
.map-join::before {
  content: ""; position: absolute; left: .5rem; top: -.45rem; bottom: 50%;
  border-left: 1px solid var(--rule-2); border-bottom: 1px solid var(--rule-2);
  width: .7rem; border-bottom-left-radius: 6px;
}

.keyhint { font-family: var(--sans); font-size: .74rem; color: var(--muted); }
.keyhint kbd {
  font-family: var(--mono); font-size: .72rem;
  border: 1px solid var(--rule-2); border-radius: 4px;
  padding: .05rem .3rem; background: var(--ground-2); color: var(--ink-2);
}
@media (max-width: 620px) { .keyhint { display: none; } }

/* ---------- toast ---------- */

.toast {
  position: fixed; left: 50%; bottom: calc(var(--rail-h) + 16px); transform: translateX(-50%);
  z-index: 70; background: var(--ink); color: var(--ground);
  font-family: var(--sans); font-size: .84rem; font-weight: 500;
  padding: .55rem 1rem; border-radius: 999px; box-shadow: var(--shadow);
  animation: rise .2s var(--ease) both; pointer-events: none; max-width: 90vw;
}

/* ---------- tables ---------- */

table.data {
  border-collapse: collapse; font-family: var(--sans); font-size: .86rem;
  width: 100%;
}
table.data th {
  text-align: left; font-weight: 650; font-size: .72rem; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted);
  padding: .3rem .6rem .4rem 0; border-bottom: 1px solid var(--rule-2);
}
table.data td { padding: .38rem .6rem .38rem 0; border-bottom: 1px solid var(--rule); }
table.data td.n { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; }
.scroll-x { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ---------- svg chart bits ---------- */

.ax { stroke: var(--rule-2); stroke-width: 1; }
.ax-t { fill: var(--muted); stroke: none; font-family: var(--sans); font-size: 11px; }
.ax-t.b { fill: var(--ink-2); font-weight: 600; }
.gridline { stroke: var(--rule); stroke-width: 1; }
.gridline.dash { stroke-dasharray: 3 4; }
.bar-advice { fill: var(--advice); stroke: none; }
.bar-warranted { fill: var(--warranted); stroke: none; }
.bar-flat { fill: var(--flat); stroke: none; }
.lbl { fill: var(--ink); stroke: none; font-family: var(--sans); font-size: 12px; }
.lbl.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.hit { fill: transparent; stroke: none; cursor: pointer; }

.legend { display: flex; flex-wrap: wrap; gap: 1rem; font-family: var(--sans); font-size: .8rem; color: var(--ink-2); }
.legend span { display: inline-flex; align-items: center; gap: .4rem; }
.swatch { width: 11px; height: 11px; border-radius: 3px; flex: none; }

.hidden { display: none !important; }

/* ---------- the one formula ---------- */

.frac {
  display: flex; align-items: center; gap: .7rem; flex-wrap: wrap;
  font-size: clamp(.95rem, 1.6vw, 1.1rem); line-height: 1.35;
  margin-bottom: 1.3rem;
}
.frac-lhs { font-weight: 600; }
.frac-eq { color: var(--muted); }
.frac-stack {
  display: inline-flex; flex-direction: column; align-items: center;
  text-align: center; min-width: 0;
}
.frac-num { padding: 0 .7rem .35rem; font-weight: 600; }
.frac-den {
  padding: .35rem .7rem 0; font-weight: 600;
  border-top: 1.5px solid var(--rule-2); width: 100%;
}
.frac-den span:nth-child(2) { font-weight: 400; color: var(--muted); }
.frac-sym {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: 1rem; color: var(--ink-2); letter-spacing: .02em;
  margin: 0 0 1.1rem; padding-top: .9rem; border-top: 1px solid var(--rule);
}
@media (max-width: 420px) {
  .frac { gap: .4rem; }
  .frac-num, .frac-den { padding-left: .3rem; padding-right: .3rem; }
}

/* ---------- the line-up ---------- */

.lineup {
  display: grid; gap: .9rem; grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 900px) { .lineup { grid-template-columns: minmax(0,1fr); } }

.suspect {
  display: flex; flex-direction: column; text-align: left; gap: .55rem;
  background: var(--card); border: 1px solid var(--rule-2); border-radius: 13px;
  padding: 1.05rem 1.1rem; color: inherit;
  transition: border-color .18s, transform .18s, opacity .18s, box-shadow .18s;
}
.suspect:hover { border-color: var(--ink-2); }
.suspect.open { border-color: var(--advice); box-shadow: var(--shadow); transform: translateY(-2px); }
.suspect.dim { opacity: .5; }
.suspect-name { font-size: 1.02rem; font-weight: 650; letter-spacing: -.012em; }
.suspect-blurb {
  font-family: var(--sans); font-size: .84rem; line-height: 1.5;
  color: var(--ink-2); margin: 0; max-width: none;
}
/* The verdict appears on click. Reserve its height so picking a card does not
   push the comparison bar the reader is checking it against. */
.suspect-verdict {
  font-family: var(--sans); font-size: .82rem; line-height: 1.45;
  margin: 0; max-width: none; min-height: 5.8em;
}
@media (min-width: 700px) { .suspect-verdict { min-height: 4.4em; } }
/* Red and green were off-palette and the standard colour-blind failure pair.
   The verdict text carries the distinction, so weight is enough. */
.suspect-verdict.out { color: var(--muted); font-weight: 600; }
.suspect-verdict.in  { color: var(--advice); font-weight: 600; }

.sig { display: grid; gap: .1rem; margin-top: .2rem; }
.sig-row { display: flex; align-items: center; gap: .5rem; }
.sig-k {
  font-family: var(--sans); font-size: .74rem; color: var(--muted);
  width: 6.6rem; flex: none;
}
.sig-cell { color: var(--ink-2); display: inline-flex; flex: none; }
/* Match and mismatch, without relying on a red/green pair: the matching arrow
   takes the advice accent and full weight, the mismatch recedes. */
.sig-cell.hit { color: var(--advice); opacity: 1; }
.sig-cell.miss { color: var(--muted); opacity: .45; }
.sig-v {
  font-family: var(--mono); font-size: .78rem; color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.observed {
  background: var(--ground-2); border: 1px solid var(--rule);
  border-radius: 13px; padding: .9rem 1.1rem;
  display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap;
}
.observed-k {
  font-family: var(--sans); font-size: .72rem; font-weight: 650;
  letter-spacing: .09em; text-transform: uppercase; color: var(--muted);
}
.sig-obs { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.sig-obs .sig-row { gap: .4rem; }
.sig-obs .sig-k { width: auto; }
.sig-obs .sig-cell { color: var(--advice); }

/* ---------- the balance-sheet probes ---------- */

.probe-cols {
  display: grid; gap: 1.2rem; grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (max-width: 760px) { .probe-cols { grid-template-columns: minmax(0,1fr); } }
.probe-group { display: flex; flex-direction: column; gap: .45rem; align-items: flex-start; }
.probe-title {
  font-family: var(--sans); font-size: .78rem; font-weight: 650;
  letter-spacing: .04em; color: var(--ink);
}
.probe-sub {
  font-family: var(--sans); font-size: .76rem; color: var(--muted);
  margin-bottom: .15rem;
}
.chip.probe { text-align: left; white-space: normal; line-height: 1.35; }

/* ---------- the prompt box ---------- */

.pb-body .pb-p { margin: 0 0 .8rem; max-width: none; }
.pb-body .pb-p.pb-last { margin-bottom: 0; font-size: .88em; color: var(--muted); }
.pb-mark {
  background: var(--advice-soft); color: var(--advice);
  padding: .04em .3em; border-radius: 5px; font-weight: 600;
}
.pb-foot { margin-top: 1rem; padding-top: .8rem; border-top: 1px solid var(--rule); }
.promptbox .pb-head { margin-bottom: 1rem; }
.promptbox .pb-head::after { margin-left: .1rem; }
.pb-head .slot { text-transform: none; letter-spacing: 0; font-size: .95rem; }

/* the inline signature glyphs must not stretch to fill their flex cell */
.sig-cell svg { width: 40px !important; height: 22px; flex: none; display: block; }
.sig { margin-top: .35rem; }
.sig-row { min-height: 24px; }
.ok-t { color: var(--ok); font-weight: 600; }
.alert-t { color: var(--alert); font-weight: 600; }