:root {
  --ink: #0b1934;
  --lime: #c7ff29;
  --blue: #1579ff;
  --coral: #ff6b5e;
  --turquoise: #19c4b2;
  --paper: #f7f5ef;
  --warm: #e7e4dc;
  --muted: #59677b;
  --line: rgba(11, 25, 52, 0.15);
  --light-line: rgba(247, 245, 239, 0.17);
  --serif: "Nimbus Roman", "Times New Roman", Georgia, serif;
  --sans: "Manrope", "Avenir Next", "Segoe UI", Arial, sans-serif;
}

/* Referencias con contenido en línea: el número queda aparte sin convertir
   las cursivas ni los enlaces en columnas independientes. */
.article-three .references-list > p {
  position: relative;
  display: block !important;
  padding: 22px 0 22px 74px !important;
}
.article-three .references-list > p::before {
  position: absolute;
  top: 22px;
  left: 0;
}
@media (max-width: 560px) {
  .article-three .references-list > p {
    padding-left: 46px !important;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  color: var(--blue);
}
.shell {
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}
.brand-lockup {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
}
.official-logo {
  width: 190px;
  height: auto;
}
.footer-logo {
  width: 180px;
}
.brand-author {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.055em;
}
.topbar {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(11, 25, 52, 0.94);
  color: var(--paper);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--light-line);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 27px;
  font-size: 14px;
}
.nav-links a {
  color: rgba(247, 245, 239, 0.72);
}
.nav-links .active,
.nav-links a:hover {
  color: var(--lime);
}
.nav-cta {
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink) !important;
  font-weight: 800;
}
.nav-toggle {
  display: none;
}
.hero {
  position: relative;
  overflow: hidden;
  padding: 158px 0 104px;
  background: var(--ink);
  color: var(--paper);
}
.hero:after {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  right: -220px;
  top: -270px;
  border: 1px solid rgba(199, 255, 41, 0.32);
  border-radius: 50%;
  box-shadow:
    0 0 0 36px rgba(199, 255, 41, 0.05),
    0 0 0 72px rgba(199, 255, 41, 0.035);
}
.hero:before {
  content: "mp";
  position: absolute;
  right: 14%;
  bottom: -8%;
  color: rgba(199, 255, 41, 0.08);
  font: italic 260px/1 var(--serif);
  letter-spacing: -0.13em;
  transform: rotate(-8deg);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 980px;
}
.eyebrow,
.section-label,
.reference-role {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--lime);
}
.eyebrow:before {
  content: "";
  width: 27px;
  height: 2px;
  background: var(--lime);
}
h1 {
  max-width: 930px;
  margin: 24px 0 23px;
  font-size: clamp(3.15rem, 7.2vw, 7rem);
  line-height: 0.91;
  letter-spacing: -0.075em;
}
.brand-tagline {
  margin: -8px 0 23px;
  color: var(--turquoise);
  font: italic 25px/1 var(--serif);
}
.hero-lead {
  max-width: 820px;
  margin: 0;
  color: rgba(247, 245, 239, 0.8);
  font-size: clamp(1.14rem, 2vw, 1.43rem);
  line-height: 1.5;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 13px 25px;
  margin-top: 34px;
  color: rgba(247, 245, 239, 0.53);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.article {
  padding: 82px 0 115px;
}
.intro {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 74px;
  padding-bottom: 74px;
  border-bottom: 1px solid var(--line);
}
.section-label {
  color: var(--blue);
}
.intro h2,
.references-heading h2 {
  margin: 17px 0 0;
  font-size: clamp(2.35rem, 4.5vw, 4.65rem);
  line-height: 0.95;
  letter-spacing: -0.065em;
}
.intro h2 {
  max-width: 440px;
}
.intro-copy p,
.body-copy p {
  margin: 0 0 19px;
  color: #435169;
  font-size: 19px;
  line-height: 1.62;
}
.method-note,
.mini-note {
  margin-top: 27px;
  padding: 20px 22px;
  border-left: 3px solid var(--turquoise);
  background: rgba(25, 196, 178, 0.08);
  color: #435169;
  font-size: 15px;
  line-height: 1.5;
}
.quote {
  margin: 64px 0 0;
  padding: 31px 33px;
  border-left: 4px solid var(--coral);
  background: var(--warm);
  color: var(--ink);
  font: italic clamp(1.8rem, 3vw, 3.1rem) / 1.04 var(--serif);
  letter-spacing: -0.035em;
}
.quote small {
  display: block;
  margin-top: 24px;
  color: var(--muted);
  font: 800 11px/1.4 var(--sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.body {
  padding-top: 86px;
}
.body-grid {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 74px;
}
.body-side {
  position: sticky;
  top: 112px;
  align-self: start;
}
.body-side p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.48;
}
.body-copy h2 {
  margin: 0 0 24px;
  font-size: clamp(2.1rem, 3.8vw, 3.8rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}
.body-copy h3 {
  margin: 48px 0 14px;
  font-size: 27px;
  line-height: 1.08;
  letter-spacing: -0.04em;
}
.references {
  margin-top: 86px;
  padding: 76px 0 0;
  border-top: 1px solid var(--line);
}
.references-heading {
  display: flex;
  justify-content: space-between;
  gap: 35px;
  margin-bottom: 36px;
}
.references-heading h2 {
  max-width: 600px;
}
.references-heading > p {
  max-width: 410px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}
.reference {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.reference-number {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}
.reference p {
  margin: 0;
  color: #435169;
  font-size: 15px;
  line-height: 1.55;
}
.reference-role {
  display: block;
  margin-bottom: 8px;
  color: var(--coral);
  font-size: 10px;
}
.reference a {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.case-list,
.test-list {
  margin: 0;
  padding-left: 22px;
  color: #435169;
}

.case-list li,
.test-list li {
  margin: 0 0 14px;
  padding-left: 4px;
  font-size: 19px;
  line-height: 1.62;
}
.footer-note {
  margin-top: 25px;
  padding: 20px 22px;
  border-left: 3px solid var(--coral);
  background: rgba(255, 107, 94, 0.08);
  color: #435169;
  font-size: 15px;
}
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}
footer {
  padding: 38px 0;
  background: var(--ink);
  color: var(--paper);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.footer-small {
  color: rgba(247, 245, 239, 0.58);
  font-size: 12px;
}

/* Imagen editorial: abre una idea, no sustituye una fuente documental. */
.support-image {
  position: relative;
  margin: 64px 0 0;
  overflow: hidden;
  background: var(--ink);
}
.support-image.is-framed {
  margin-top: 48px;
  border-radius: 18px;
  box-shadow: 0 16px 34px rgba(11, 25, 52, 0.12);
}
.support-image img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.image-watermark {
  position: absolute;
  right: 22px;
  bottom: 17px;
  color: rgba(247, 245, 239, 0.82);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* Síntesis visual: organiza una relación desarrollada en el texto. */
.cognitive-map {
  margin: 52px 0 58px;
  padding: 30px 32px 32px;
  border: 1px solid rgba(21, 121, 255, 0.18);
  background: linear-gradient(135deg, rgba(21, 121, 255, 0.07), rgba(25, 196, 178, 0.1));
}
.cognitive-map .section-label { margin-bottom: 12px; }
.cognitive-map h3 {
  max-width: 610px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.5rem, 2.2vw, 2.15rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}
.cognitive-map-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) 1.35fr;
  gap: 12px;
  align-items: stretch;
  margin-top: 24px;
}
.cognitive-map-step,
.cognitive-map-result {
  display: flex;
  align-items: center;
  min-height: 70px;
  padding: 17px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.25;
}
.cognitive-map-step {
  border: 1px solid rgba(11, 25, 52, 0.1);
  background: rgba(247, 245, 239, 0.85);
  color: var(--ink);
}
.cognitive-map-result {
  position: relative;
  padding-left: 31px;
  background: var(--ink);
  color: var(--paper);
}
.cognitive-map-result::before {
  content: "→";
  position: absolute;
  left: 11px;
  color: var(--lime);
}
.cognitive-map-note {
  max-width: 690px;
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.support-image img[src$="arqueologia-pedagogica-03-seis-preguntas.png"] {
  aspect-ratio: auto;
  object-fit: contain;
}

/* Bloques de lectura visual: sintetizan una idea ya desarrollada en el texto. */
.inquiry-map,
.development-lens,
.research-trail {
  margin: 3.2rem 0;
  padding: clamp(24px, 5vw, 48px);
  border-radius: 3px;
  overflow: hidden;
}
.inquiry-map {
  position: relative;
  background: linear-gradient(130deg, #0b1934, #112e58);
  color: var(--paper);
  box-shadow: 0 18px 42px rgba(11, 25, 52, 0.16);
}
.inquiry-map::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -230px;
  top: -285px;
  border: 1px solid rgba(199, 255, 41, 0.24);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(199, 255, 41, 0.045), 0 0 0 84px rgba(25, 196, 178, 0.035);
}
.visual-kicker {
  position: relative;
  z-index: 1;
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.inquiry-map h3 {
  position: relative;
  z-index: 1;
  max-width: 570px;
  margin: 10px 0 30px;
  font-size: clamp(1.55rem, 4vw, 2.6rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}
.map-route,
.lens-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 11px;
}
.map-node {
  display: flex;
  align-items: flex-end;
  min-height: 108px;
  padding: 17px 14px;
  border: 1px solid rgba(247, 245, 239, 0.24);
  background: rgba(247, 245, 239, 0.06);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.18;
}
.map-node em {
  display: block;
  color: var(--turquoise);
  font-size: 11px;
  font-style: normal;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.map-node.question { background: var(--lime); border-color: var(--lime); color: var(--ink); }
.map-node.question em { color: #385300; }
.map-note {
  position: relative;
  z-index: 1;
  max-width: 650px;
  margin: 20px 0 0;
  color: rgba(247, 245, 239, 0.75);
  font-size: 14px;
  line-height: 1.48;
}
.development-lens { background: #e9f1fb; border: 1px solid rgba(21, 121, 255, 0.15); }
.development-lens .visual-kicker { color: var(--blue); }
.development-lens h3 {
  max-width: 580px;
  margin: 10px 0 28px;
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}
.lens-step {
  min-height: 148px;
  padding: 18px 16px;
  border-top: 4px solid var(--blue);
  background: var(--paper);
  box-shadow: 0 8px 19px rgba(11, 25, 52, 0.07);
}
.lens-step:nth-child(2) { border-color: var(--turquoise); }
.lens-step:nth-child(3) { border-color: var(--coral); }
.lens-step:nth-child(4) { border-color: var(--lime); }
.lens-index {
  display: block;
  margin-bottom: 23px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.11em;
}
.lens-step strong { display: block; font-size: 16px; line-height: 1.22; }
.lens-step .lens-followup { margin-top: 10px; color: var(--muted); font-size: 13px; font-weight: 650; }
.research-trail { background: var(--ink); color: var(--paper); }
.research-trail .visual-kicker { color: var(--turquoise); }
.research-trail h3 {
  margin: 10px 0 26px;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.trail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid rgba(247, 245, 239, 0.18);
}
.trail-step {
  min-height: 96px;
  padding: 17px 14px;
  border-right: 1px solid rgba(247, 245, 239, 0.18);
  font-size: 14px;
  font-weight: 750;
  line-height: 1.2;
}
.trail-step:last-child { border-right: 0; }
.trail-step:nth-child(2n) { background: rgba(247, 245, 239, 0.06); }
.trail-step b { display: block; margin-bottom: 8px; color: var(--lime); font-size: 11px; letter-spacing: 0.1em; }
.trail-step.final b { color: var(--coral); }
.research-trail p { margin: 18px 0 0; color: rgba(247, 245, 239, 0.72); font-size: 14px; line-height: 1.5; }
.question-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  list-style: none;
  counter-reset: item;
}
.question-grid li {
  position: relative;
  min-height: 112px;
  margin: 0 !important;
  padding: 19px 18px 16px 53px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 8px 20px rgba(11, 25, 52, 0.045);
  font-size: 16px;
  line-height: 1.45;
}
.question-grid li::before {
  position: absolute;
  top: 18px;
  left: 17px;
  color: var(--coral);
  content: counter(item, decimal-leading-zero);
  counter-increment: item;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

/* Evidencia documental y clasificación epistemológica dentro de un artículo. */
.documentary-gallery {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
  margin: 64px 0 0;
}
.documentary-figure,
.documentary-evidence {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
}
.documentary-gallery .documentary-figure:first-child {
  grid-row: span 2;
}
.documentary-figure img,
.documentary-evidence img {
  display: block;
  width: 100%;
}
.documentary-gallery .documentary-figure img {
  height: 100%;
  max-height: 560px;
  object-fit: cover;
}
.documentary-figure figcaption,
.documentary-evidence figcaption {
  padding: 12px 15px 14px;
  color: rgba(247, 245, 239, 0.78);
  font-size: 13px;
  line-height: 1.45;
}
.documentary-evidence {
  margin: 46px 0;
}
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 38px 0;
}
.evidence-grid > div {
  min-height: 126px;
  padding: 19px 18px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 8px 20px rgba(11, 25, 52, 0.045);
}
.evidence-grid strong {
  display: block;
  margin-bottom: 9px;
  color: var(--blue);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.evidence-grid p {
  margin: 0 !important;
  color: var(--muted) !important;
  font-size: 15px !important;
  line-height: 1.5 !important;
}

@media (max-width: 720px) {
  .map-route, .lens-grid { grid-template-columns: 1fr 1fr; }
  .trail { grid-template-columns: 1fr 1fr; }
  .trail-step:nth-child(2) { border-right: 0; }
  .trail-step:nth-child(-n + 2) { border-bottom: 1px solid rgba(247, 245, 239, 0.18); }
  .question-grid { grid-template-columns: 1fr; }
  .documentary-gallery,
  .evidence-grid { grid-template-columns: 1fr; }
  .documentary-gallery .documentary-figure:first-child { grid-row: auto; }
  .documentary-gallery .documentary-figure img { max-height: none; }
}

@media (max-width: 560px) {
  .map-route, .lens-grid, .trail { grid-template-columns: 1fr; }
  .map-node { min-height: 78px; }
  .trail-step { min-height: 70px; border-right: 0; border-bottom: 1px solid rgba(247, 245, 239, 0.18); }
  .trail-step:last-child { border-bottom: 0; }
  .inquiry-map, .development-lens, .research-trail { margin: 2.4rem -8px; padding: 26px 20px; }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 32px, 1160px);
  }
  .nav {
    min-height: 74px;
  }
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--light-line);
    background: transparent;
    color: var(--paper);
    padding: 8px 11px;
  }
  .nav-open .nav-links {
    display: flex;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    background: var(--ink);
  }
  .hero {
    padding: 132px 0 80px;
  }
  h1 {
    font-size: clamp(3rem, 16vw, 4.5rem);
  }
  .article {
    padding: 64px 0 82px;
  }
  .intro,
  .body-grid,
  .references-heading {
    grid-template-columns: 1fr;
    display: grid;
    gap: 32px;
  }
  .intro {
    padding-bottom: 54px;
  }
  .body {
    padding-top: 60px;
  }
  .body-side {
    position: static;
  }
  .intro-copy p,
  .body-copy p {
    font-size: 17px;
  }
  .reference {
    grid-template-columns: 35px 1fr;
  }
  .reference a {
    grid-column: 2;
  }
  .case-list li,
  .test-list li {
    font-size: 17px;
  }
  .article-nav,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }
  .support-image {
    margin-top: 46px;
  }
  .support-image.is-framed {
    margin-top: 36px;
    border-radius: 14px;
  }
  .image-watermark {
    right: 14px;
    bottom: 12px;
    font-size: 11px;
  }
  .cognitive-map {
    margin: 40px 0 46px;
    padding: 25px 20px;
  }
  .cognitive-map-flow { grid-template-columns: 1fr; }
  .cognitive-map-result::before { content: "↓"; }
}

/* Variante reutilizable: una corrección conserva y reabre la pregunta. */
.research-trail--five-states .trail {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.research-trail--five-states .trail-step {
  position: relative;
  display: grid;
  align-content: start;
  gap: 9px;
  min-height: 156px;
  padding: 18px 15px 20px;
}

.research-trail--five-states .trail-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -10px;
  z-index: 2;
  transform: translateY(-50%);
  color: var(--lime);
  font-size: 16px;
  line-height: 1;
}

.research-trail--five-states .trail-index {
  color: rgba(247, 245, 239, 0.52);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.research-trail--five-states .trail-step b {
  margin: 0;
}

.research-trail--five-states .trail-step > span:last-child {
  color: rgba(247, 245, 239, 0.74);
  font-size: 14px;
  font-weight: 750;
  line-height: 1.3;
}

.research-trail--five-states .trail-state-origin,
.research-trail--five-states .trail-state-continuation {
  background: rgba(247, 245, 239, 0.06);
}

.research-trail--five-states .trail-state-origin b,
.research-trail--five-states .trail-state-continuation b {
  color: var(--turquoise);
}

.research-trail--five-states .trail-state-correction {
  background: var(--lime);
  color: var(--ink);
}

.research-trail--five-states .trail-state-correction .trail-index,
.research-trail--five-states .trail-state-correction b,
.research-trail--five-states .trail-state-correction > span:last-child {
  color: var(--ink);
}

@media (max-width: 850px) {
  .research-trail--five-states .trail {
    grid-template-columns: 1fr;
  }

  .research-trail--five-states .trail-step {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid rgba(247, 245, 239, 0.18);
  }

  .research-trail--five-states .trail-step:last-child {
    border-bottom: 0;
  }

  .research-trail--five-states .trail-step:not(:last-child)::after {
    top: auto;
    right: auto;
    bottom: -10px;
    left: 22px;
    transform: none;
    content: "↓";
  }
}

/* Variante reutilizable: muestra el recorrido que una persona puede revisar. */
.research-trail--documentable-route .trail {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.research-trail--documentable-route .trail-step {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 142px;
}

.research-trail--documentable-route .trail-index {
  color: rgba(247, 245, 239, 0.52);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.research-trail--documentable-route .trail-step b {
  margin: 0;
}

.research-trail--documentable-route .trail-step > span:last-child {
  color: rgba(247, 245, 239, 0.74);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.35;
}

.research-trail--documentable-route .trail-step:nth-child(4n + 1) b,
.research-trail--documentable-route .trail-step:nth-child(4n + 2) b {
  color: var(--turquoise);
}

.research-trail--documentable-route .trail-step:nth-child(5) {
  background: rgba(199, 255, 41, 0.12);
}

.research-trail--documentable-route .trail-step:nth-child(5) b {
  color: var(--lime);
}

.research-trail--documentable-route .trail-step:nth-child(7) {
  background: var(--lime);
}

.research-trail--documentable-route .trail-step:nth-child(7) .trail-index,
.research-trail--documentable-route .trail-step:nth-child(7) b,
.research-trail--documentable-route .trail-step:nth-child(7) > span:last-child {
  color: var(--ink);
}

@media (max-width: 850px) {
  .research-trail--documentable-route .trail {
    grid-template-columns: 1fr;
  }

  .research-trail--documentable-route .trail-step {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid rgba(247, 245, 239, 0.18);
  }

  .research-trail--documentable-route .trail-step:last-child {
    border-bottom: 0;
  }
}

/* Variante reutilizable: traduce una pregunta humana en un recorrido revisable. */
.research-trail--search-translation .trail {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.research-trail--search-translation .trail-step {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 152px;
}

.research-trail--search-translation .trail-index {
  color: rgba(247, 245, 239, 0.52);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.research-trail--search-translation .trail-step b {
  margin: 0;
}

.research-trail--search-translation .trail-step > span:last-child {
  color: rgba(247, 245, 239, 0.74);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.35;
}

.research-trail--search-translation .trail-step:nth-child(2) {
  background: rgba(25, 196, 178, 0.12);
}

.research-trail--search-translation .trail-step:nth-child(2) b::after {
  display: block;
  width: max-content;
  margin-top: 7px;
  padding: 3px 6px;
  border: 1px solid rgba(25, 196, 178, 0.48);
  color: var(--turquoise);
  content: "SI SE ACTIVA";
  font-size: 9px;
  letter-spacing: 0.09em;
}

.research-trail--search-translation .trail-step:nth-child(5) {
  background: rgba(199, 255, 41, 0.14);
}

.research-trail--search-translation .trail-step:nth-child(5) b {
  color: var(--lime);
}

.research-trail--search-translation .trail-step:nth-child(-n + 4) {
  border-bottom: 1px solid rgba(247, 245, 239, 0.18);
}

.research-trail--search-translation .trail-step:nth-child(4) {
  border-right: 0;
}

.research-trail--search-translation .trail-step:nth-child(7) {
  grid-column: span 2;
  background: var(--lime);
}

.research-trail--search-translation .trail-step:nth-child(7) .trail-index,
.research-trail--search-translation .trail-step:nth-child(7) b,
.research-trail--search-translation .trail-step:nth-child(7) > span:last-child {
  color: var(--ink);
}

@media (max-width: 850px) {
  .research-trail--search-translation .trail {
    grid-template-columns: 1fr;
  }

  .research-trail--search-translation .trail-step {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid rgba(247, 245, 239, 0.18);
  }

  .research-trail--search-translation .trail-step:nth-child(7) {
    grid-column: auto;
  }

  .research-trail--search-translation .trail-step:last-child {
    border-bottom: 0;
  }
}

/* Variante reutilizable: paisaje de literatura sin secuencia causal. */
.inquiry-map--literature-landscape .landscape-group {
  position: relative;
  z-index: 1;
  margin-top: 24px;
}

.inquiry-map--literature-landscape .landscape-group h4 {
  margin: 0 0 10px;
  color: rgba(247, 245, 239, 0.76);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.inquiry-map--literature-landscape .landscape-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.inquiry-map--literature-landscape .landscape-node {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 176px;
  padding: 18px 16px;
  border: 1px solid rgba(247, 245, 239, 0.24);
  background: rgba(247, 245, 239, 0.06);
}

.inquiry-map--literature-landscape .landscape-index {
  color: rgba(247, 245, 239, 0.5);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.inquiry-map--literature-landscape .landscape-node b {
  color: var(--turquoise);
  font-size: 11px;
  letter-spacing: 0.055em;
  line-height: 1.3;
}

.inquiry-map--literature-landscape .landscape-node > span:last-child {
  color: rgba(247, 245, 239, 0.82);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.4;
}

.inquiry-map--literature-landscape .landscape-node.limit b {
  color: rgba(247, 245, 239, 0.72);
}

.inquiry-map--literature-landscape .landscape-node.hypothesis,
.inquiry-map--literature-landscape .landscape-node.question {
  border-color: rgba(199, 255, 41, 0.48);
  background: rgba(199, 255, 41, 0.11);
}

.inquiry-map--literature-landscape .landscape-node.hypothesis b,
.inquiry-map--literature-landscape .landscape-node.question b {
  color: var(--lime);
}

@media (max-width: 850px) {
  .inquiry-map--literature-landscape .landscape-grid {
    grid-template-columns: 1fr;
  }

  .inquiry-map--literature-landscape .landscape-node {
    min-height: 0;
  }
}
/* Árbol vivo de preguntas: componente reutilizable y aislado del resto de artículos. */
.bonus-questions .intro { margin-bottom: 70px; }
.question-tree { margin: 0 0 76px; padding: 46px; background: var(--ink); color: var(--paper); border-radius: 22px; }
.question-tree-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.question-tree-heading h2 { margin: 6px 0 0; color: var(--paper); }
.question-tree-heading > p { max-width: 280px; margin: 0; color: rgba(247,245,239,.78); }
.question-tree-help { margin: 28px 0 4px; font-weight: 700; font-size: 17px; }
.question-tree-keyboard { margin: 0 0 23px; color: rgba(247,245,239,.78); font-size: 15px; }
.question-tree-key { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 35px; }
.question-tree-key span { display: inline-flex; align-items: center; gap: 8px; padding: 7px 13px; border: 1px solid rgba(247,245,239,.32); border-radius: 100px; font-size: 14px; }
.question-tree-key i { font-style: normal; color: var(--lime); font-size: 20px; line-height: 1; }
.question-tree-trunk { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin: 0 auto 24px; padding: 22px 25px; background: var(--lime); border-radius: 14px; color: var(--ink); }
.question-tree-trunk::after { content: ""; position: absolute; top: 100%; left: 50%; height: 26px; border-left: 2px solid var(--lime); }
.question-tree-trunk span { font-size: 20px; font-weight: 800; line-height: 1.25; }
.question-tree-trunk small { max-width: 310px; font-size: 13px; line-height: 1.4; }
.question-tree-groups { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px 34px; }
.question-tree-groups::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; border-left: 2px solid rgba(199,255,41,.55); }
.question-branch { position: relative; min-width: 0; padding: 21px; border: 1px solid rgba(247,245,239,.25); border-radius: 16px; background: #142746; transition: border-color .2s, box-shadow .2s; }
.question-branch::before { content: ""; position: absolute; top: 35px; width: 19px; border-top: 2px solid rgba(199,255,41,.55); }
.question-branch:nth-child(odd)::before { left: 100%; }
.question-branch:nth-child(even)::before { right: 100%; }
.question-branch.is-selected { border-color: var(--lime); box-shadow: 0 0 0 2px rgba(199,255,41,.22); }
.question-branch h3 { margin: 0 0 16px; color: var(--turquoise); font-size: 15px; letter-spacing: .07em; text-transform: uppercase; }
.question-fruits { display: grid; gap: 10px; }
.question-fruit { display: flex; align-items: start; gap: 13px; width: 100%; min-width: 0; padding: 15px; border: 1px solid rgba(247,245,239,.3); border-radius: 11px; background: #0b1934; color: var(--paper); font: inherit; text-align: left; cursor: pointer; }
.question-fruit:hover, .question-fruit:focus-visible, .question-fruit[aria-pressed="true"] { border-color: var(--lime); background: #1c3457; }
.question-fruit:focus-visible, .question-panel button:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }
.question-fruit-marker { flex: 0 0 27px; color: var(--lime); font-size: 23px; line-height: 1; text-align: center; }
.question-fruit-copy { display: grid; gap: 4px; min-width: 0; }
.question-fruit-copy strong { color: var(--turquoise); font-size: 13px; letter-spacing: .08em; }
.question-fruit-copy > span { font-size: 15px; line-height: 1.4; }
.question-fruit-copy small { color: rgba(247,245,239,.72); font-size: 13px; }
.question-tree-limit { margin: 30px 0 0; padding-top: 22px; border-top: 1px solid rgba(247,245,239,.25); color: rgba(247,245,239,.85); }
.question-panel { width: min(740px, calc(100% - 28px)); max-height: min(86vh, 850px); padding: 0; border: 1px solid var(--line); border-radius: 17px; background: var(--paper); color: var(--ink); box-shadow: 0 25px 80px rgba(0,0,0,.4); }
.question-panel::backdrop { background: rgba(4,12,28,.76); }
.question-panel-inner { padding: 30px; }
.question-panel-top { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.question-panel button { padding: 9px 14px; border: 1px solid var(--ink); border-radius: 9px; background: transparent; color: var(--ink); font: inherit; font-size: 14px; font-weight: 700; cursor: pointer; }
.question-panel button:hover { background: var(--ink); color: var(--paper); }
.question-panel-id { margin: 28px 0 5px; color: var(--blue); font-size: 14px; font-weight: 800; letter-spacing: .07em; }
.question-panel h2 { margin: 0 0 25px; font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.2; }
.question-panel-fields { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 17px 25px; }
.question-panel-field { min-width: 0; padding-top: 12px; border-top: 1px solid var(--line); }
.question-panel-field h3 { margin: 0 0 5px; color: var(--muted); font-size: 12px; letter-spacing: .07em; text-transform: uppercase; }
.question-panel-field p { margin: 0; overflow-wrap: anywhere; font-size: 15px; line-height: 1.5; }
.question-panel-note { margin: 26px 0; padding: 15px 19px; border-left: 4px solid var(--blue); background: #e8eef8; font-size: 15px; }
.question-panel-return { background: var(--lime) !important; border-color: var(--lime) !important; }
@media (max-width: 760px) {
  .question-tree { margin-left: -8px; margin-right: -8px; padding: 28px 20px; }
  .question-tree-heading { display: block; }
  .question-tree-heading > p { margin-top: 12px; }
  .question-tree-trunk { display: block; padding: 19px; }
  .question-tree-trunk small { display: block; margin-top: 8px; }
  .question-tree-trunk::after { left: 15px; }
  .question-tree-groups { grid-template-columns: minmax(0,1fr); gap: 17px; padding-left: 24px; }
  .question-tree-groups::before { left: 14px; }
  .question-branch::before, .question-branch:nth-child(even)::before, .question-branch:nth-child(odd)::before { left: -11px; right: auto; width: 10px; }
  .question-panel-inner { padding: 22px; }
  .question-panel-fields { grid-template-columns: minmax(0,1fr); }
}