/* =====================================================================
   SESIÓN 1 — ESCRIBIR EL SISTEMA ANTES DE CONSTRUIRLO
   Formación práctica en cognición aumentada para la DiDE.
   Sistema visual heredado de la propuesta «DiDE + cognición aumentada»:
   fondo blanco cálido, kickers numerados en monoespaciada, acento
   chartreuse, filos de un cuarto de punto, maqueta a dos columnas.
   ===================================================================== */

:root {
  --bg:        #FAFAF7;  /* blanco cálido            */
  --ink:       #111110;  /* titulares                */
  --ink-2:     #33332F;  /* cuerpo                   */
  --muted:     #6B6B66;  /* kickers, metadatos       */
  --chartreuse:#E8FF6E;  /* acento                   */
  --rule:      rgba(17,17,16,.18);  /* filo 0.25pt   */
  --rule-hard: rgba(17,17,16,.35);

  --font-grot: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, "DejaVu Sans Mono", monospace;

  --gutter: clamp(1.25rem, 5vw, 4.5rem);
  --max: 1160px;
  --rail: 13rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-2);
  font-family: var(--font-grot);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (max-width: 640px) { body { font-size: 16px; } }

h1, h2, h3 { color: var(--ink); font-weight: 700; letter-spacing: -0.015em; margin: 0; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
a { color: var(--ink); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ── kicker monoespaciado: 01 / ─────────────────────────────────────── */
.kicker {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
}
.kicker b { color: var(--ink); font-weight: 400; }

.accent-bar {
  display: block;
  width: 3.5rem; height: 4px;
  background: var(--chartreuse);
  margin-bottom: 1.1rem;
}

/* =====================================================================
   BARRA DE MODO
   ===================================================================== */
.modebar {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: .25pt solid var(--rule-hard);
}
.modebar__in {
  max-width: var(--max); margin: 0 auto;
  padding: .7rem var(--gutter);
  display: flex; align-items: center; gap: 1rem;
  justify-content: space-between;
}
.modebar__id {
  font-family: var(--font-mono); font-size: .7rem;
  letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
}
.modebar__id b { color: var(--ink); font-weight: 400; }

.btn {
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink); background: transparent;
  border: .25pt solid var(--rule-hard);
  padding: .55rem 1rem; cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--chartreuse); border-color: var(--ink); }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.btn kbd {
  font: inherit; color: var(--muted);
  border: .25pt solid var(--rule); padding: 0 .3em; margin-left: .5em;
}

/* =====================================================================
   PORTADA
   ===================================================================== */
.cover { padding-block: clamp(3.5rem, 11vh, 7.5rem) clamp(2.5rem, 7vh, 5rem); }
.cover__kicker { margin-bottom: 1.5rem; }
.cover h1 {
  font-size: clamp(2.1rem, 6.2vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 16ch;
}
.cover h1 em {
  font-style: normal;
  background: linear-gradient(to bottom, transparent 62%, var(--chartreuse) 62%);
}
.cover__lead {
  margin-top: 1.6rem;
  max-width: 44ch;
  font-size: 1.12rem;
  color: var(--ink-2);
}
.cover__meta {
  margin-top: 2.5rem;
  border-top: .25pt solid var(--rule-hard);
  padding-top: 1.1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 1.25rem 2rem;
}
.cover__meta div span { display: block; }
.cover__meta .v { color: var(--ink); font-size: .98rem; margin-top: .3rem; }

/* =====================================================================
   SECCIONES A DOS COLUMNAS
   ===================================================================== */
.section { border-top: .25pt solid var(--rule-hard); padding-block: clamp(2.6rem, 7vh, 4.5rem); }

.cols {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}
@media (max-width: 800px) { .cols { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; } }

.rail { position: sticky; top: 4.5rem; }
@media (max-width: 800px) { .rail { position: static; } }
.rail h2 {
  font-size: 1.08rem;
  margin-top: .45rem;
  letter-spacing: -0.01em;
  max-width: 18ch;
}
.rail__note {
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .06em;
  color: var(--muted); margin-top: .7rem; display: block;
}

/* ── tarjeta de slide en modo consulta ──────────────────────────────── */
.slide-card {
  border-top: .25pt solid var(--rule);
  padding-block: 1.9rem;
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 1.5rem;
}
.slide-card:first-child { border-top: 0; padding-top: 0; }
@media (max-width: 560px) { .slide-card { grid-template-columns: minmax(0, 1fr); gap: .9rem; } }

.slide-card__n {
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .06em; color: var(--muted);
  padding-top: .35rem;
}
.slide-card__n b { display: block; color: var(--ink); font-weight: 400; }

.stage {
  border: .25pt solid var(--rule-hard);
  background: #fff;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  margin-bottom: 1.1rem;
}
.line { display: block; font-family: var(--font-mono); font-size: .66rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: .6rem; }

.said p { max-width: 62ch; }
.said .line { margin-bottom: .45rem; }

/* ── tipos de visual del escenario ─────────────────────────────────── */
.v-strike, .v-quote, .v-ask, .v-cue {
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.12;
  font-weight: 700;
}
.v-strike { font-size: clamp(1.5rem, 4.2vw, 2.6rem); }
.v-strike s {
  text-decoration: line-through;
  text-decoration-thickness: 3px;
  text-decoration-color: var(--chartreuse);
}
.v-ask { font-size: clamp(1.5rem, 4.2vw, 2.6rem); }
.v-quote { font-size: clamp(1.2rem, 2.9vw, 1.9rem); font-weight: 500; line-height: 1.25; max-width: 24ch; }
.v-cue  { font-size: clamp(1.5rem, 4.2vw, 2.6rem); }

.aux { list-style: none; margin: 1.3rem 0 0; padding: 0; border-top: .25pt solid var(--rule); }
.aux li {
  border-bottom: .25pt solid var(--rule);
  padding: .6rem 0 .6rem 1.9rem;
  position: relative;
  color: var(--ink-2);
  font-size: .98rem;
}
.aux li::before {
  content: attr(data-i);
  position: absolute; left: 0; top: .65rem;
  font-family: var(--font-mono); font-size: .68rem; color: var(--muted);
}

/* diagrama del tercer espacio */
.venn { width: 100%; max-width: 30rem; height: auto; display: block; }
.venn text { font-family: var(--font-mono); font-size: 9px; letter-spacing: .08em; fill: var(--ink); text-transform: uppercase; }
.venn .c { fill: none; stroke: var(--ink); stroke-width: .5; }
.venn .third { fill: var(--chartreuse); }

/* flecha diálogo → spec */
.flow { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.flow__a, .flow__b { font-weight: 700; letter-spacing: -0.02em; color: var(--ink); }
.flow__a { font-size: clamp(1.1rem, 2.6vw, 1.6rem); color: var(--muted); }
.flow__b { font-size: clamp(1.8rem, 5vw, 3rem); background: var(--chartreuse); padding: 0 .18em; }
.flow__arrow { font-family: var(--font-mono); color: var(--ink); font-size: 1.2rem; }

/* =====================================================================
   MATERIAL DE REFERENCIA
   ===================================================================== */
.ref { border-top: .25pt solid var(--rule); padding-block: 1.9rem; }
.ref:first-child { border-top: 0; padding-top: 0; }
.ref h3 { font-size: 1.22rem; max-width: 30ch; letter-spacing: -0.02em; }
.ref__n { font-family: var(--font-mono); font-size: .72rem; color: var(--muted); display: block; margin-bottom: .5rem; }
.ref__body { margin-top: .8rem; max-width: 64ch; }

/* =====================================================================
   PIE
   ===================================================================== */
.foot {
  border-top: .25pt solid var(--rule-hard);
  padding-block: 2.2rem 3.5rem;
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .06em; color: var(--muted);
  text-transform: uppercase;
  display: flex; gap: 1rem; flex-wrap: wrap; justify-content: space-between;
}

/* =====================================================================
   MODO PRESENTACIÓN
   ===================================================================== */
.deck {
  position: fixed; inset: 0; z-index: 100;
  background: var(--bg);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}
.deck[hidden] { display: none !important; }
body.is-presenting { overflow: hidden; }

.deck__top, .deck__bottom {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: .85rem clamp(1rem, 4vw, 3rem);
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
}
.deck__top { border-bottom: .25pt solid var(--rule-hard); }
.deck__bottom { border-top: .25pt solid var(--rule-hard); }
.deck__top b, .deck__bottom b { color: var(--ink); font-weight: 400; }

.deck__stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: center;
  padding: clamp(1.5rem, 5vw, 4rem);
  max-width: 1240px; width: 100%; margin: 0 auto;
  overflow-y: auto;
}
.deck__seen { }
.deck__seen .v-strike, .deck__seen .v-ask, .deck__seen .v-cue {
  font-size: clamp(2rem, 7vw, 5rem);
}
.deck__seen .v-quote { font-size: clamp(1.4rem, 4vw, 2.9rem); max-width: 22ch; }
.deck__seen .venn { max-width: min(34rem, 60vh); }
.deck__seen .aux { margin-top: clamp(1.2rem, 3vh, 2.4rem); }
.deck__seen .aux li { font-size: clamp(.95rem, 1.8vw, 1.15rem); }

.deck__said {
  margin-top: clamp(1.5rem, 4vh, 3rem);
  border-top: .25pt solid var(--rule-hard);
  padding-top: 1rem;
  max-width: 68ch;
  color: var(--muted);
  font-size: clamp(.95rem, 1.7vw, 1.1rem);
  line-height: 1.5;
}
.deck__said .line { color: var(--ink); }
.deck.is-clean .deck__said { display: none; }

.deck__nav { display: flex; gap: .5rem; align-items: center; }
.deck__prog { flex: 1; height: 2px; background: var(--rule); position: relative; margin-inline: 1rem; }
.deck__prog i { position: absolute; inset: 0 auto 0 0; background: var(--chartreuse); display: block; }

@media print {
  .modebar, .deck { display: none !important; }
  body { font-size: 11pt; }
  .stage { break-inside: avoid; }
}

/* el número de slide abre la presentación en ese punto */
.slide-card__n { cursor: pointer; }
.slide-card__n:hover b { background: var(--chartreuse); }

/* =====================================================================
   BLOQUE 2 — «ASÍ SE HACE UN SPEC»: los ocho pasos desplegables
   ===================================================================== */
.subhead {
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  letter-spacing: -0.025em;
}
.subhead__lead {
  margin-top: .6rem;
  max-width: 52ch;
  color: var(--muted);
}

.pasos { margin-top: 1.8rem; border-top: .25pt solid var(--rule-hard); }

.paso { border-bottom: .25pt solid var(--rule-hard); }
.paso > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr) 1.5rem;
  gap: .75rem;
  align-items: baseline;
  padding: 1rem 0;
}
.paso > summary::-webkit-details-marker { display: none; }
.paso > summary:hover .paso__q { background: var(--chartreuse); }
.paso > summary:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

.paso__n {
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .06em; color: var(--muted);
}
.paso__q {
  color: var(--ink);
  font-weight: 700;
  font-size: clamp(1.02rem, 2.2vw, 1.28rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.paso__mark {
  justify-self: end; align-self: center;
  width: 13px; height: 13px; position: relative;
}
.paso__mark::before, .paso__mark::after {
  content: ''; position: absolute; background: var(--ink);
  transition: transform .18s ease, opacity .18s ease;
}
.paso__mark::before { inset: 6px 0 auto 0; height: .25pt; border-top: 1px solid var(--ink); }
.paso__mark::after  { inset: 0 6px 0 auto; width: .25pt; border-left: 1px solid var(--ink); }
.paso[open] .paso__mark::after { opacity: 0; }

.paso__body {
  padding: 0 0 1.5rem 3.75rem;
  max-width: 64ch;
}
@media (max-width: 560px) {
  .paso > summary { grid-template-columns: 2.4rem minmax(0, 1fr) 1.2rem; gap: .5rem; }
  .paso__body { padding-left: 0; }
}

/* ── la tarea de cierre ─────────────────────────────────────────────── */
.task {
  margin-top: 2.5rem;
  border: .25pt solid var(--ink);
  border-left: 4px solid var(--chartreuse);
  padding: clamp(1.4rem, 4vw, 2.2rem);
  background: #fff;
}
.task h3 {
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  letter-spacing: -0.025em;
  margin-top: .4rem;
}
.task p { margin-top: .8rem; max-width: 58ch; font-size: 1.05rem; }

.task__brief {
  margin-top: 1.1rem;
  font-size: clamp(1rem, 2.1vw, 1.35rem);
  font-weight: 400;
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 44ch;
  border-left: 4px solid var(--chartreuse);
  padding-left: 1rem;
}
.deck__seen .task__brief { max-width: 34ch; }

/* la barra de modo cede en pantallas muy estrechas */
.modebar__in { flex-wrap: wrap; }
.modebar__right { display: flex; align-items: center; gap: .9rem; }
@media (max-width: 460px) {
  .modebar__now { display: none; }
  .btn { padding: .5rem .7rem; }
  .tab { padding: .45rem .6rem; }
}

/* =====================================================================
   EJEMPLO DE SPEC — respuestas en pares clave / valor
   ===================================================================== */
.ejemplo { margin-top: 1.8rem; border-top: .25pt solid var(--rule-hard); padding-top: 1.6rem; }

.ans__lead {
  font-size: 1.06rem;
  color: var(--ink);
  max-width: 56ch;
  margin-bottom: 1rem;
}
.ans { border-top: .25pt solid var(--rule); }
.ans__row {
  display: grid;
  grid-template-columns: 10.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: .7rem 0;
  border-bottom: .25pt solid var(--rule);
}
.ans__k {
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted);
  padding-top: .28rem;
}
.ans__v { color: var(--ink-2); }
@media (max-width: 620px) {
  .ans__row { grid-template-columns: minmax(0, 1fr); gap: .2rem; }
}

/* =====================================================================
   PESTAÑAS DE SESIÓN EN LA BARRA DE MODO
   ===================================================================== */
.modebar__nav { display: flex; align-items: center; gap: .4rem; }
.modebar__nav .modebar__id { margin-right: .2rem; }

/* las dos sesiones son un control segmentado: mismo chip que los botones */
.tab {
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); text-decoration: none;
  padding: .55rem .9rem;
  border: .25pt solid var(--rule-hard);
  background: transparent;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.tab:hover { color: var(--ink); border-color: var(--ink); }
.tab.is-on {
  color: var(--ink);
  background: var(--chartreuse);
  border-color: var(--ink);
}
.tab:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* =====================================================================
   SESIÓN 2 — MOMENTOS DEL TALLER
   ===================================================================== */
.mom {
  border-top: .25pt solid var(--rule-hard);
  padding-block: 1.9rem;
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 1.5rem;
}
.mom:first-child { border-top: 0; padding-top: 0; }
@media (max-width: 560px) { .mom { grid-template-columns: minmax(0, 1fr); gap: .7rem; } }

.mom__n {
  font-family: var(--font-mono);
  font-size: 1.05rem; color: var(--ink);
  padding-top: .15rem;
  cursor: pointer;
}
.mom__n b {
  display: block;
  font-size: .66rem; font-weight: 400; letter-spacing: .08em;
  color: var(--muted); text-transform: uppercase; margin-top: .25rem;
}
.mom__n:hover { background: var(--chartreuse); }

.mom__t {
  font-size: clamp(1.25rem, 2.9vw, 1.7rem);
  letter-spacing: -0.025em;
}
.mom__body { margin-top: .9rem; max-width: 66ch; }
.mom__body > p { margin-bottom: .9rem; }

/* sub-encabezado dentro de un momento */
.sub {
  font-family: var(--font-mono);
  font-size: .72rem; font-weight: 400;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink);
  margin: 1.4rem 0 .2rem;
  padding-bottom: .35rem;
  border-bottom: .25pt solid var(--rule-hard);
}
.sub span { color: var(--muted); text-transform: none; letter-spacing: 0; }
.mom__body > .sub:first-child { margin-top: 0; }

/* lista numerada de pasos */
.steps { list-style: none; margin: .9rem 0 0; padding: 0; counter-reset: paso; }
.steps li {
  counter-increment: paso;
  position: relative;
  padding: .55rem 0 .55rem 2.3rem;
  border-bottom: .25pt solid var(--rule);
}
.steps li::before {
  content: counter(paso, decimal-leading-zero);
  position: absolute; left: 0; top: .62rem;
  font-family: var(--font-mono); font-size: .68rem; color: var(--muted);
}

/* rutas paralelas */
.ruta {
  border-left: 3px solid var(--rule-hard);
  padding: .1rem 0 .1rem 1rem;
  margin: 1rem 0;
}
.ruta--a { border-left-color: var(--chartreuse); }
.ruta__tag {
  font-family: var(--font-mono);
  font-size: .66rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted);
}
.ruta__t { font-size: 1rem; margin-top: .15rem; margin-bottom: .35rem; }

/* notas y preguntas al grupo */
.nota {
  font-size: .95rem; color: var(--muted);
  border-top: .25pt solid var(--rule);
  padding-top: .7rem; margin-top: 1rem;
}
.pregunta {
  font-weight: 700; color: var(--ink);
  font-size: clamp(1.05rem, 2.3vw, 1.35rem);
  letter-spacing: -0.015em;
  line-height: 1.3;
  border-left: 4px solid var(--chartreuse);
  padding-left: 1rem;
  margin: 1.1rem 0;
  max-width: 40ch;
}

/* código */
code {
  font-family: var(--font-mono);
  font-size: .86em;
  background: rgba(17,17,16,.06);
  padding: .1em .32em;
}
pre.code {
  font-family: var(--font-mono);
  font-size: .8rem; line-height: 1.6;
  background: #fff;
  border: .25pt solid var(--rule-hard);
  padding: 1rem 1.1rem;
  margin-top: 1.1rem;
  overflow-x: auto;
}
pre.code code { background: none; padding: 0; font-size: 1em; }

/* tabla de problemas frecuentes */
.tabla { width: 100%; border-collapse: collapse; font-size: .97rem; }
.tabla th {
  font-family: var(--font-mono);
  font-size: .66rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); text-align: left; font-weight: 400;
  padding: 0 1rem .6rem 0;
  border-bottom: .25pt solid var(--ink);
}
.tabla td {
  vertical-align: top;
  padding: .8rem 1rem .8rem 0;
  border-bottom: .25pt solid var(--rule);
}
.tabla td:first-child { color: var(--ink); font-weight: 500; width: 34%; }
@media (max-width: 560px) {
  .tabla, .tabla tbody, .tabla tr, .tabla td { display: block; width: auto; }
  .tabla thead { display: none; }
  .tabla tr { border-bottom: .25pt solid var(--rule-hard); padding-block: .6rem; }
  .tabla td { border: 0; padding: .15rem 0; }
  .tabla td:first-child { width: auto; }
}

/* el momento en modo presentación */
.deck__t { font-size: clamp(1.6rem, 4.4vw, 3rem); letter-spacing: -0.03em; }
.deck__min {
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); display: block; margin-top: .5rem;
}
.deck__cuerpo { margin-top: clamp(1rem, 3vh, 1.8rem); max-width: 74ch; }
.deck__cuerpo .steps li { font-size: clamp(.95rem, 1.7vw, 1.1rem); }
.deck__cuerpo .ans__v, .deck__cuerpo p { font-size: clamp(.95rem, 1.7vw, 1.1rem); }

/* =====================================================================
   FORMULARIO EMBEBIDO — el resultado del taller, funcionando
   ===================================================================== */
.embed {
  margin-top: 1.2rem;
  border: .25pt solid var(--rule-hard);
  background: #fff;
  padding: .5rem;
  overflow: hidden;
}
.embed iframe { display: block; width: 100%; border: 0; }
@media (max-width: 560px) { .embed iframe { height: 520px; } }
.deck__cuerpo .embed iframe { height: min(480px, 46vh); }

/* =====================================================================
   SESIONES 3 Y 4 — DIAGRAMAS, CITAS Y ENCARGOS
   ===================================================================== */
.diagrama {
  width: 100%; max-width: 44rem; min-width: 19rem; height: auto;
  display: block;
  margin: 1.4rem 0;
  border: .25pt solid var(--rule-hard);
  background: #fff;
  padding: .6rem;
}
.diagrama .cajas rect { fill: none; stroke: var(--ink); stroke-width: .5; }
.diagrama .rot text {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: .04em; fill: var(--ink); text-anchor: middle;
}
.diagrama .flechas line, .diagrama .flechas path {
  stroke: var(--ink); stroke-width: .75; fill: none;
}
.diagrama .flechas .vuelta { stroke-dasharray: 3 3; }
.diagrama .pie, .diagrama .via {
  font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: .08em; text-transform: uppercase; fill: var(--muted);
}

/* la instrucción que se le dicta al agente */
.cita {
  margin: 1.1rem 0 0;
  border-left: 4px solid var(--chartreuse);
  padding: .2rem 0 .2rem 1.1rem;
  color: var(--ink);
  font-size: 1.02rem;
  line-height: 1.5;
  max-width: 56ch;
}
.encargo { margin-top: 1.1rem; }
.encargo .line { margin-bottom: .1rem; }
.encargo .cita { margin-top: .4rem; }

/* los pares clave/valor admiten una aclaración en versalitas */
.ans__k span {
  display: block;
  text-transform: none;
  letter-spacing: 0;
  opacity: .7;
}

/* cuatro sesiones: las pestañas se abrevian antes de desbordar */
.tab { white-space: nowrap; }
.tab__corta { display: none; }
@media (max-width: 680px) {
  .tab__larga { display: none; }
  .tab__corta { display: inline; }
  .tab { padding: .5rem .7rem; }
  .modebar__nav { gap: .3rem; }
}

/* rótulos secundarios dentro de un diagrama */
.diagrama .rot .sub { fill: var(--muted); font-size: 9.5px; }
.diagrama .micro text {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: .06em; fill: var(--muted);
}

/* con cinco sesiones, el rótulo del modo actual estorba antes */
@media (max-width: 960px) { .modebar__now { display: none; } }

/* =====================================================================
   DESPLEGABLE DE EJEMPLO — un botón que abre una muestra
   ===================================================================== */
.demo { margin-top: 1.3rem; }
.demo > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink);
  border: .25pt solid var(--rule-hard);
  padding: .55rem .9rem;
  transition: background .15s ease, border-color .15s ease;
}
.demo > summary::-webkit-details-marker { display: none; }
.demo > summary:hover { background: var(--chartreuse); border-color: var(--ink); }
.demo > summary:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.demo[open] > summary { background: var(--chartreuse); border-color: var(--ink); }

.demo__mark { width: 11px; height: 11px; position: relative; }
.demo__mark::before { content: ''; position: absolute; inset: 5px 0 auto 0; border-top: 1px solid var(--ink); }
.demo__mark::after  { content: ''; position: absolute; inset: 0 5px 0 auto; border-left: 1px solid var(--ink); }
.demo[open] .demo__mark::after { opacity: 0; }

.demo__body {
  margin-top: 1rem;
  border: .25pt solid var(--rule-hard);
  border-left: 4px solid var(--chartreuse);
  background: #fff;
  padding: clamp(1.1rem, 3vw, 1.8rem);
  max-width: 62ch;
}
.demo__body h5 {
  font-family: var(--font-mono);
  font-size: .68rem; font-weight: 400;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted);
  margin: 1.6rem 0 .6rem;
}
.demo__body h5:first-child { margin-top: 0; }

/* la muestra misma: se ve como se vería en un formulario */
.muestra {
  border: .25pt solid var(--rule);
  background: var(--bg);
  padding: 1rem 1.1rem;
  font-size: .95rem;
  line-height: 1.5;
}
.muestra p { margin: 0 0 .7rem; }
.muestra p:last-child { margin-bottom: 0; }
.muestra .casilla {
  display: grid;
  grid-template-columns: 1.1rem minmax(0, 1fr);
  gap: .6rem;
  align-items: start;
}
.muestra .casilla i {
  width: 13px; height: 13px; margin-top: .25rem;
  border: 1px solid var(--ink); display: block;
}
.muestra .botones { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .9rem; }
.muestra .botones span {
  font-family: var(--font-mono); font-size: .68rem;
  text-transform: uppercase; letter-spacing: .06em;
  border: .25pt solid var(--ink); padding: .4rem .7rem;
}
.demo__body .nota { margin-top: 1.2rem; }

/* el dato mismo, resaltado dentro de un diagrama */
.diagrama .dato { fill: var(--chartreuse); stroke: var(--ink); stroke-width: .5; }
.diagrama .rot .enDato { fill: var(--ink); opacity: .65; font-size: 9.5px; }