/* =============================================================
   STYLES-TOUR.CSS — Modo presentación de OncoLens
   Mismos tokens que style.css. Tipografía escalada para
   proyección: cada sección ocupa una pantalla.
   ============================================================= */

:root {
  --bg: #FBFDFF;
  --surface: #FFFFFF;
  --ink: #0C1E30;
  --ink-soft: #6B7C8F;
  --ink-faint: #A6B4C2;
  --accent: #1652F0;
  --accent-hover: #0F3FC7;
  --line: #E7EDF4;
  --line-strong: #D2DCE8;
  --data: #14B8B3;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --header-h: 84px;
  --gutter: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.tour-page {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* =============================================================
   CABECERA
   ============================================================= */

.tour-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter) 0 calc(var(--gutter) + 11px);
  background: rgba(251, 253, 255, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}

.tour-logo img {
  height: 46px;
  width: auto;
  display: block;
}

.tour-logo:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
  border-radius: 4px;
}

.tour-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

/*.tour-chapter {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}*/

.tour-progress {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  padding: 7px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
}

/* ── Desplegable de capítulos ─────────────────────────── */

.tour-menu { position: relative; }

.tour-menu summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  user-select: none;
  min-width: 62px; 
  justify-content: center;
}

.tour-menu summary::-webkit-details-marker { display: none; }

.tour-menu summary::after {
  content: '';
  width: 5px;
  height: 5px;
  border-right: 1.3px solid var(--ink-faint);
  border-bottom: 1.3px solid var(--ink-faint);
  transform: rotate(45deg) translate(-1px, -2px);
  transition: transform 0.2s ease;
}

.tour-menu[open] summary::after {
  transform: rotate(-135deg) translate(-1px, -1px);
}

.tour-menu ul {
  position: absolute;
  top: calc(100% + 14px);
  right: 0;
  min-width: 264px;
  padding: 6px;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  box-shadow: 0 10px 34px rgba(12, 30, 48, 0.10);
  z-index: 120;
}

.tour-menu li { list-style: none; }

.tour-menu ul a {
  display: block;
  padding: 10px 13px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 300;
  line-height: 1.4;
  color: var(--ink-soft);
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease;
}

.tour-menu ul a:hover { background: var(--bg); color: var(--ink); }

.tour-menu ul a[aria-current="page"] {
  color: var(--accent);
  font-weight: 500;
}

/*.tour-menu summary .cap {
  font-family: 'IBM Plex Sans', sans-serif;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .72rem;
  color: #6B7280;
}*/

/* =============================================================
   CONTENEDOR CON SCROLL SNAP
   ============================================================= */

.tour-container {
  margin-top: var(--header-h);
  height: calc(100vh - var(--header-h) - var(--foot-h));
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}

.tour-container::-webkit-scrollbar { display: none; }

/* =============================================================
   SECCIONES
   ============================================================= */

.tour-section {
  min-height: calc(100vh - var(--header-h) - var(--foot-h));
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: center;
  padding: 72px var(--gutter);
  border-bottom: 1px solid var(--line);
}

.tour-section:last-child { border-bottom: none; }

.tour-section--surface { background: var(--surface); }

.tour-inner {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
}

/* Rejilla de dos columnas: texto + figura */
.tour-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 72px;
  align-items: center;
}

.tour-split--figure-left { grid-template-columns: 0.85fr 1.15fr; }
.tour-split--figure-left .tour-figure { order: -1; }

/* =============================================================
   TIPOGRAFÍA
   ============================================================= */

.tour-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
}

.tour-eyebrow::before {
  content: '';
  width: 34px;
  height: 1px;
  background: var(--data);
  flex-shrink: 0;
}

.tour-display {
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 82px);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -0.025em;
}

.tour-display strong {
  font-weight: 500;
  color: var(--accent);
}

.tour-h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.9vw, 52px);
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

.tour-h2 strong { font-weight: 500; color: var(--accent); }

.tour-h3 {
  font-family: var(--font-display);
  font-size: clamp(19px, 1.6vw, 23px);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.tour-lead {
  font-size: clamp(17px, 1.5vw, 22px);
  line-height: 1.62;
  color: var(--ink-soft);
  max-width: 62ch;
}

.tour-lead + .tour-lead { margin-top: 20px; }

.tour-lead strong {
  color: var(--ink);
  font-weight: 500;
}

.tour-lead em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--ink);
}

.tour-note {
  margin-top: 34px;
  padding-left: 20px;
  border-left: 2px solid var(--line-strong);
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.62;
  color: var(--ink-faint);
  max-width: 58ch;
}

/* =============================================================
   PORTADA
   ============================================================= */

.tour-cover .tour-display { 
  margin-bottom: 34px; 
}

.tour-cover-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  margin-top: 56px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.tour-cover-meta div { min-width: 0; }

.tour-cover-meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 7px;
}

.tour-cover-meta dd {
  font-family: var(--font-display);
  font-size: clamp(17px, 1.5vw, 21px);
  font-weight: 500;
  color: var(--ink);
}

/* =============================================================
   TARJETAS EN REJILLA (hairline, como en el sitio)
   ============================================================= */

.tour-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 44px;
}

.tour-card {
  background: var(--bg);
  padding: 34px 30px;
}

.tour-section--surface .tour-card { background: var(--surface); }

.tour-card-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.11em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 14px;
}

.tour-card p {
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.65;
  color: var(--ink-soft);
}

.tour-card p strong { color: var(--ink); font-weight: 500; }

/* =============================================================
   PASOS NUMERADOS (RNA-Seq)
   ============================================================= */

.tour-steps {
  display: grid;
  gap: 0;
  margin-top: 40px;
}

.tour-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 26px;
  align-items: baseline;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.tour-step:last-child { border-bottom: 1px solid var(--line); }

.tour-step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.tour-step-body h4 {
  font-family: var(--font-display);
  font-size: clamp(16px, 1.3vw, 19px);
  font-weight: 500;
  margin-bottom: 6px;
}

.tour-step-body p {
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.62;
  color: var(--ink-soft);
}

/* =============================================================
   CADENA / FLUJO (ADN → gen → mRNA → número)
   ============================================================= */

.tour-chain {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 46px;
  flex-wrap: wrap;
}

.tour-chain-node {
  flex: 1 1 150px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 22px 20px;
  text-align: center;
}

.tour-section--surface .tour-chain-node { background: var(--bg); }

.tour-chain-node span {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 9px;
}

.tour-chain-node strong {
  font-family: var(--font-display);
  font-size: clamp(15px, 1.25vw, 18px);
  font-weight: 500;
  color: var(--ink);
}

.tour-chain-node.is-accent { border-color: var(--accent); }
.tour-chain-node.is-accent strong { color: var(--accent); }
.tour-chain-node.is-data { border-color: var(--data); }
.tour-chain-node.is-data strong { color: #0F766E; }

.tour-chain-link {
  flex: 0 0 44px;
  display: grid;
  place-items: center;
  color: var(--line-strong);
}

/* =============================================================
   LISTA DE LÍMITES ("lo que no es")
   ============================================================= */

.tour-limits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 30px 44px;
  margin-top: 44px;
}

.tour-limit { border-left: 2px solid var(--line-strong); padding-left: 24px; }

.tour-limit h4 {
  font-family: var(--font-display);
  font-size: clamp(16px, 1.3vw, 19px);
  font-weight: 500;
  margin-bottom: 9px;
}

.tour-limit p {
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.62;
  color: var(--ink-soft);
}

/* =============================================================
   AVISO DESTACADO
   ============================================================= */

.tour-callout {
  margin-top: 44px;
  background: #FFF7ED;
  border: 1px solid #FDBA74;
  border-radius: 10px;
  padding: 28px 32px;
  max-width: 900px;
}

.tour-callout span {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #C2410C;
  margin-bottom: 12px;
}

.tour-callout p {
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.62;
  color: #7C2D12;
}

.tour-callout strong { font-weight: 600; }

/* =============================================================
   FIGURAS
   ============================================================= */

.tour-figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.tour-figure svg { width: 100%; height: auto; max-height: 58vh; }

.tour-figure img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
}

.tour-figcaption {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  text-align: center;
  line-height: 1.6;
  max-width: 34ch;
}

/* =============================================================
   SECCIÓN FINAL + BOTÓN SIGUIENTE
   ============================================================= */

.tour-section--end {
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.tour-end-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  margin: auto 0;
}

.tour-end-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.tour-end-next {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.tour-btn-next {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 17px 34px;
  background: var(--accent);
  color: var(--surface);
  border: none;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 400;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

.tour-btn-next:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.tour-btn-next svg { transition: transform 0.25s ease; }
.tour-btn-next:hover svg { transform: translateX(4px); }

.tour-btn-next:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.tour-hint {
  font-size: 13px;
  color: var(--ink-faint);
}

.tour-hint kbd {
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--surface);
  color: var(--ink-soft);
}

.tour-footer {
  width: 100%;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-faint);
}

/* =============================================================
   PORTADA: contenido arriba, texto e imagen en dos columnas
   ============================================================= */

.tour-cover { align-items: center; }

.tour-cover .tour-display { margin-bottom: 0; }

.tour-cover-body {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  margin-top: clamp(28px, 4vh, 44px);
}

/* la fila entra un poco por dentro del titular */
.tour-cover-body {
  align-items: center;
  width: 86%;
  margin-inline: auto;
  gap: clamp(28px, 4vw, 52px);
}

.tour-cover-body .tour-figure {
  margin-top: 28px;             /* ← esta es la que baja la imagen */
}

/* el párrafo ocupa todo el ancho de su columna */
.tour-cover-body .tour-lead { max-width: none; }

/* el pie deja de partirse y se alinea bajo la imagen */
.tour-cover-body .tour-figcaption {
  max-width: none;
  text-align: left;
  align-self: start;
}

/* =============================================================
   RESPONSIVE
   ============================================================= */

@media (max-width: 1040px) {
  .tour-split,
  .tour-split--figure-left {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .tour-split--figure-left .tour-figure { order: 0; }
  .tour-figure svg { max-height: 36vh; }
  .tour-cover-body { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  :root { --gutter: 24px; --header-h: 68px; }

  .tour-header { padding: 0 var(--gutter); }
  .tour-logo img { height: 36px; }
  .tour-chapter { display: none; }

  .tour-section { padding: 48px var(--gutter); }
  .tour-cover-meta { gap: 20px 28px; }
  .tour-step { grid-template-columns: 42px 1fr; gap: 16px; }
  .tour-chain-link { flex-basis: 100%; height: 28px; transform: rotate(90deg); }
  .tour-btn-next { width: 100%; justify-content: center; }
  .tour-hint { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tour-container { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

.bio-visual { position: relative; }
.bio-visual .bio-3d { width: 100%; height: 380px; }
.bio-visual:not(.is-3d) .bio-3d { display: none; }
.bio-visual.is-3d > svg { display: none; }

/* =============================================================
   FILAS DE FUENTES (capítulo 02 · El punto de partida)
   ============================================================= */

.src-list { margin-top: 36px; }

.src-row {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}

.src-row:last-child { border-bottom: 1px solid var(--line); }

.src-num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 3px;
}

.src-file {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  display: block;
  margin-bottom: 6px;
}

.src-dim {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--data);
  display: block;
  margin-bottom: 14px;
}

.src-links { 
  margin-left: 3rem; 
  margin-top: 8px; 
}

.src-links a {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--accent);
}

.src-links a:hover { text-decoration: underline; }

.src-desc {
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.65;
  color: var(--ink-soft);
}

.src-desc strong { color: var(--ink); font-weight: 500; }

.tour-note + .tour-note { margin-top: 14px; }
.tour-note strong { color: var(--ink-soft); font-weight: 500; }

@media (max-width: 900px) {
  .src-row { grid-template-columns: 1fr; gap: 14px; }
}

.src-intro { max-width: none; }

.src-notas .tour-note {
  max-width: none;
  margin-top: 30px;
  text-align: right;
  padding-left: 0;
  padding-right: 20px;
  border-left: none;
  border-right: 2px solid var(--line-strong);
}

/* =============================================================
   GRÁFICO DE BARRAS (capítulo 02 · Lo que hay dentro)
   ============================================================= */

.chart-split {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 64px;
  align-items: center;
}

.chart-split .tour-note { max-width: none; }

.chart-legend {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.chart-legend span { display: inline-flex; align-items: center; gap: 8px; }
.chart-legend i { width: 13px; height: 13px; border-radius: 3px; display: block; }
.chart-legend .k-tumor { background: var(--accent); }
.chart-legend .k-sano { background: var(--data); }

.chart-plot {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(14px, 2vw, 28px);
  align-items: end;
  height: 240px;
  border-bottom: 2px solid var(--line-strong);
}

.chart-labels { height: auto; border-bottom: none; align-items: start; }

.bar-col {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  height: 100%;
}

.bar-value {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--ink);
  text-align: center;
  margin-bottom: 9px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  transition-delay: calc(0.55s + var(--i) * 0.12s);
}

.bar {
  height: 0;
  width: 100%;
  max-width: 62px;
  display: flex;
  flex-direction: column;
  border-radius: 4px 4px 0 0;
  overflow: hidden;
  transition: height 1s cubic-bezier(0.22, 0.8, 0.28, 1);
  transition-delay: calc(var(--i) * 0.12s);
}

.bar .seg-tumor { background: var(--accent); }
.bar .seg-sano { background: var(--data); }

.chart.is-live .bar { height: var(--h); }
.chart.is-live .bar-value { opacity: 1; transform: none; }

.bar-label { margin-top: 13px; text-align: center; }

.bar-label b {
  display: block;
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink);
}

.bar-label span {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-top: 3px;
}

.chart-foot {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px 20px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.chart-foot dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 5px;
}

.chart-foot dd {
  font-family: var(--font-display);
  font-size: clamp(17px, 1.4vw, 22px);
  font-weight: 500;
  color: var(--ink);
}

@media (max-width: 1040px) {
  .chart-split { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 720px) {
  .chart-plot { height: 220px; gap: 10px; }
  .bar { max-width: 40px; }
  .bar-value { font-size: 12px; }
  .bar-label span { display: none; }
}


/*==================================================
   FLUJO (capítulo 02 · )
   ============================================================= */

:root{
  --bg:#FBFDFF; --surface:#FFFFFF; --ink:#0C1E30; --ink-soft:#6B7C8F;
  --ink-faint:#A6B4C2; --accent:#1652F0; --line:#E7EDF4;
  --line-strong:#D2DCE8; --data:#14B8B3; --rojo:#E0342B;
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'IBM Plex Sans',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --gutter:56px;
}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-weight:300;-webkit-font-smoothing:antialiased}
 
.tour-section{min-height:100vh;display:flex;align-items:center;padding:44px var(--gutter)}
.tour-inner{width:100%;max-width:1180px;margin:0 auto}
.tour-h2{font-family:var(--font-display);font-size:clamp(26px,3vw,40px);font-weight:400;line-height:1.14;letter-spacing:-.02em;margin-bottom:10px}
.tour-h2 strong{font-weight:500;color:var(--accent)}
.tour-lead{font-size:clamp(14px,1.15vw,17px);line-height:1.6;color:var(--ink-soft);max-width:70ch}
 
/* ── Rejilla general: flujo + raíl lateral ──────────────── */
.arq{
  display:grid;
  grid-template-columns:1fr 232px;
  gap:34px;
  margin-top:30px;
  align-items:stretch;
}
.arq-flujo{display:flex;flex-direction:column;align-items:stretch}
 
/* ── Caja ───────────────────────────────────────────────── */
.caja {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 14px 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .55s ease, transform .55s ease;
  transition-delay: calc(var(--i) * .37s);
}

.arq.is-live .caja{opacity:1;transform:none}
 
.caja-tag{
  display:block;font-family:var(--font-mono);
  font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-faint);margin-bottom:10px;
  margin-bottom: 6px;
}
.caja h4{
  font-family:var(--font-display);font-size:16px;font-weight:500;
  color:var(--ink);margin-bottom:5px;
  margin-bottom: 3px;
}
.caja p{font-size:12.5px;line-height:1.5;color:var(--ink-soft)}
 
.caja.is-db{border-color:var(--data);background:rgba(20,184,179,.04)}
.caja.is-db .caja-tag{color:#0F766E}
 
/* ── Huecos para logos ──────────────────────────────────── */
.logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, 40px);
  gap: 7px;
  margin: 0;
  max-width: 94px;
}

.logo-slot {
  width: 40px;
  height: 24px;
  border: 1px dashed var(--line-strong);
  border-radius: 5px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 7px;
  color: var(--ink-faint);
  letter-spacing: .04em;
}

.logo-slot img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

.logo-slot:has(img) { border: none; }
 
/* ── Flecha vertical ────────────────────────────────────── */
.flecha{
  height:34px;display:grid;place-items:center;
  opacity:0;transition:opacity .4s ease;
  transition-delay:calc(var(--i) * .22s);
}
.arq.is-live .flecha{opacity:1}
.flecha svg{display:block}
.flecha svg path{
  stroke-dasharray:40;stroke-dashoffset:40;
  transition:stroke-dashoffset .5s ease;
  transition-delay:calc(.08s + var(--i) * .22s);
}
.arq.is-live .flecha svg path{stroke-dashoffset:0}
 
/* ── Nivel 4: dos cajas ─────────────────────────────────── */
.nivel-dual{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch}
.nivel-dual .caja{height:100%}
 
/* enlace horizontal entre las dos */
.enlace{
  position:relative;
  display:grid;place-items:center;
}
 
/* ── Punto «usted está aquí» ────────────────────────────── */
.caja-aqui{position:relative;border-color:var(--accent)}
.aqui{
  position:absolute;top:-13px;right:-13px;
  display:flex;align-items:center;gap:7px;
  opacity:0;transition:opacity .5s ease 1.5s;
}
.arq.is-live .aqui{opacity:1}
.aqui-punto{
  width:13px;height:13px;border-radius:50%;
  background:var(--rojo);flex-shrink:0;
  animation:latir 1.8s ease-in-out infinite;
}
.aqui-txt{
  font-family:var(--font-mono);font-size:9.5px;
  letter-spacing:.1em;text-transform:uppercase;
  color:var(--rojo);white-space:nowrap;
  background:var(--bg);padding:2px 6px;border-radius:4px;
}
@keyframes latir{
  0%,100%{transform:scale(1);box-shadow:0 0 0 0 rgba(224,52,43,.45)}
  50%{transform:scale(1.28);box-shadow:0 0 0 7px rgba(224,52,43,0)}
}
 
/* ── Raíl lateral ───────────────────────────────────────── */
.arq-rail{
  background:var(--bg);
  border:1px dashed var(--line-strong);
  border-radius:12px;
  padding:20px;
  display:flex;flex-direction:column;justify-content:center;
  opacity:0;transform:translateX(12px);
  transition:opacity .6s ease 1.2s, transform .6s ease 1.2s;
}
.arq.is-live .arq-rail{opacity:1;transform:none}
.arq-rail .caja-tag{margin-bottom:14px}
.arq-rail p{font-size:12.5px;line-height:1.55;color:var(--ink-soft);margin-top:10px}
.rail-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 0;border-top:1px solid var(--line);
}
.rail-item span{font-size:12.5px;color:var(--ink-soft)}
 
/* ── Leyenda ────────────────────────────────────────────── */
.arq-leyenda{
  display:flex;flex-wrap:wrap;gap:10px 28px;
  margin-top:22px;padding-top:16px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:10px;
  letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);
}
.arq-leyenda span{display:inline-flex;align-items:center;gap:8px}
.ley-linea{width:22px;height:0;border-top:2px solid var(--ink-soft)}
.ley-punt{width:22px;height:0;border-top:2px dashed var(--ink-faint)}
.ley-bi{width:22px;height:0;border-top:2px solid var(--data)}
 
@media(max-width:980px){
  .arq{grid-template-columns:1fr;gap:22px}
  .nivel-dual{grid-template-columns:1fr;gap:14px}
}
@media(prefers-reduced-motion:reduce){
  .caja,.flecha,.arq-rail,.aqui{transition:none}
  .aqui-punto{animation:none}
}



*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-weight:300;-webkit-font-smoothing:antialiased}
 
.tour-section{min-height:100vh;display:flex;align-items:center;padding:50px var(--gutter)}
.tour-inner{width:100%;max-width:1180px;margin:0 auto}
.tour-h2{font-family:var(--font-display);font-size:clamp(26px,3.2vw,44px);font-weight:400;line-height:1.14;letter-spacing:-.02em;margin-bottom:14px}
.tour-h2 strong{font-weight:500;color:var(--accent)}
.tour-lead{font-size:clamp(15px,1.2vw,18px);line-height:1.6;color:var(--ink-soft);max-width:72ch}
 
/* ── Rejilla de notebooks ───────────────────────────────── */
.nbs{
  display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(24px,3vw,44px);
  margin-top:42px;align-items:start;
}
 
/* ── Documento ──────────────────────────────────────────── */
.nb{
  background:var(--surface);
  border:1px solid var(--line-strong);
  border-radius:10px;
  overflow:hidden;
  box-shadow:0 4px 18px rgba(12,30,48,.05);
  opacity:0;transform:translateY(16px);
  transition:opacity .6s ease, transform .6s ease;
  transition-delay:calc(var(--n) * .35s);
}
.nbs.is-live .nb{opacity:1;transform:none}
 
.nb-cab{
  display:flex;align-items:center;gap:11px;
  padding:13px 20px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.nb-cab i{
  width:8px;height:8px;border-radius:50%;
  background:var(--line-strong);flex-shrink:0;
}
.nb-cab i:first-child{background:var(--accent)}
.nb-nombre{
  font-family:var(--font-mono);
  font-size:13px;font-weight:500;
  color:var(--ink);letter-spacing:.01em;
}
 
.nb-cuerpo{padding:22px 22px 24px}
 
.nb-lista{list-style:none;display:flex;flex-direction:column;gap:0}
 
.nb-lista li{
  display:grid;grid-template-columns:34px 1fr;
  gap:12px;align-items:baseline;
  padding:11px 0;
  border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(6px);
  transition:opacity .45s ease, transform .45s ease;
  transition-delay:calc(.5s + var(--n) * .35s + var(--i) * .13s);
}
.nbs.is-live .nb-lista li{opacity:1;transform:none}
.nb-lista li:last-child{border-bottom:none;padding-bottom:0}
 
.nb-celda{
  font-family:var(--font-mono);
  font-size:10.5px;color:var(--accent);
  letter-spacing:.02em;
}
.nb-txt{font-size:14px;line-height:1.55;color:var(--ink-soft)}
.nb-txt strong{color:var(--ink);font-weight:500}
.nb-txt code{
  font-family:var(--font-mono);font-size:12px;
  color:var(--ink);background:var(--line);
  padding:1px 5px;border-radius:3px;
}
 
/* salida final del notebook */
.nb-out{
  margin-top:18px;padding:12px 16px;
  background:rgba(20,184,179,.06);
  border-left:2px solid var(--data);
  border-radius:0 6px 6px 0;
  font-family:var(--font-mono);font-size:11.5px;
  line-height:1.6;color:#0F766E;
  opacity:0;transition:opacity .5s ease;
  transition-delay:calc(1.5s + var(--n) * .35s);
}
.nbs.is-live .nb-out{opacity:1}
 
@media(max-width:900px){ .nbs{grid-template-columns:1fr;gap:26px} }
@media(prefers-reduced-motion:reduce){
  .nb,.nb-lista li,.nb-out{transition:none}
}

/*=============================================================
Los 7 modelos capítulo 02
============================================================*/

*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-weight:300;-webkit-font-smoothing:antialiased}
 
.tour-section{min-height:100vh;display:flex;align-items:center;padding:46px var(--gutter)}
.tour-inner{width:100%;max-width:1180px;margin:0 auto}
.tour-h2{font-family:var(--font-display);font-size:clamp(26px,3.1vw,42px);font-weight:400;line-height:1.14;letter-spacing:-.02em;margin-bottom:12px}
.tour-h2 strong{font-weight:500;color:var(--accent)}
.tour-lead{font-size:clamp(14px,1.15vw,17px);line-height:1.6;color:var(--ink-soft);max-width:74ch}
.tour-lead strong{color:var(--ink);font-weight:500}
 
.comp{display:grid;grid-template-columns:1.3fr .7fr;gap:clamp(26px,3.5vw,54px);margin-top:32px;align-items:start}
 
/* ── Barras ─────────────────────────────────────────────── */
.rank-cab{
  display:grid;grid-template-columns:1fr 96px 56px 52px;
  gap:12px;padding-bottom:8px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-size:9px;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);
}
.rank-cab span:nth-child(3),.rank-cab span:nth-child(4){text-align:right}
 
.fila{
  display:grid;grid-template-columns:1fr 96px 56px 52px;
  gap:12px;align-items:center;
  padding:9px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateX(-8px);
  transition:opacity .5s ease, transform .5s ease;
  transition-delay:calc(.15s + var(--i) * .11s);
}
.comp.is-live .fila{opacity:1;transform:none}
 
.fila-nom{font-size:13.5px;color:var(--ink-soft)}
.pista{height:7px;background:var(--line);border-radius:4px;overflow:hidden}
.relleno{
  height:100%;width:0;background:var(--line-strong);border-radius:4px;
  transition:width .9s cubic-bezier(.22,.8,.28,1);
  transition-delay:calc(.35s + var(--i) * .11s);
}
.comp.is-live .relleno{width:var(--w)}
 
.fila-val,.fila-t{
  font-family:var(--font-mono);font-size:12.5px;
  color:var(--ink-soft);text-align:right;
  font-variant-numeric:tabular-nums;
}
.fila-t{color:var(--ink-faint);font-size:11.5px}
 
.fila.is-win .fila-nom{color:var(--ink);font-weight:500}
.fila.is-win .relleno{background:var(--accent)}
.fila.is-win .fila-val{color:var(--accent);font-weight:500}
 
.fila.is-alto .relleno{background:var(--data)}
.fila.is-alto .fila-val{color:#0F766E}
 
.escala{
  margin-top:10px;font-family:var(--font-mono);
  font-size:9.5px;letter-spacing:.06em;color:var(--ink-faint);
}
 
/* ── Panel del elegido ──────────────────────────────────── */
.elegido{
  background:var(--surface);
  border:1px solid var(--line-strong);
  border-left:3px solid var(--accent);
  border-radius:12px;padding:24px 26px;
  opacity:0;transform:translateY(12px);
  transition:opacity .6s ease 1.25s, transform .6s ease 1.25s;
}
.comp.is-live .elegido{opacity:1;transform:none}
 
.elegido-tag{
  display:block;font-family:var(--font-mono);
  font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:10px;
}
.elegido h3{
  font-family:var(--font-display);font-size:20px;
  font-weight:500;color:var(--ink);margin-bottom:4px;
}
.elegido-sub{
  font-family:var(--font-mono);font-size:11px;
  color:var(--ink-faint);margin-bottom:14px;
}
.elegido p{font-size:13.5px;line-height:1.6;color:var(--ink-soft)}
.elegido strong{color:var(--ink);font-weight:500}
 
.met{
  display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
}
.met dt{
  font-family:var(--font-mono);font-size:9px;
  letter-spacing:.11em;text-transform:uppercase;
  color:var(--ink-faint);margin-bottom:3px;
}
.met dd{
  font-family:var(--font-display);font-size:20px;
  font-weight:500;color:var(--ink);
}
 
.nota{
  margin-top:26px;padding-left:18px;
  border-left:2px solid var(--line-strong);
  font-size:13.5px;line-height:1.6;color:var(--ink-faint);
  max-width:88ch;
  opacity:0;transition:opacity .6s ease 1.6s;
}
.comp.is-live + .nota{opacity:1}
.nota strong{color:var(--ink-soft);font-weight:500}
 
@media(max-width:900px){
  .comp{grid-template-columns:1fr;gap:28px}
  .rank-cab,.fila{grid-template-columns:1fr 70px 50px}
  .rank-cab span:nth-child(4),.fila-t{display:none}
}
@media(prefers-reduced-motion:reduce){ .fila,.relleno,.elegido,.nota{transition:none} }


/* =============================================================
    capítulo 03
   ============================================================= */
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-weight:300;-webkit-font-smoothing:antialiased}
 
.tour-section{min-height:100vh;display:flex;align-items:center;padding:46px var(--gutter)}
.tour-inner{width:100%;max-width:1180px;margin:0 auto}
.tour-h2{font-family:var(--font-display);font-size:clamp(26px,3.1vw,42px);font-weight:400;line-height:1.14;letter-spacing:-.02em;margin-bottom:12px}
.tour-h2 strong{font-weight:500;color:var(--accent)}
.tour-lead{font-size:clamp(14px,1.15vw,17px);line-height:1.6;color:var(--ink-soft);max-width:76ch}
.tour-lead strong{color:var(--ink);font-weight:500}
 
/* ── Ranking de genes ───────────────────────────────────── */
.gen{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(26px,3.5vw,52px);margin-top:30px;align-items:start}
 
.gen-cab{
  display:grid;grid-template-columns:96px 1fr 74px;
  gap:12px;padding-bottom:8px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-size:9px;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);
}
.gen-cab span:last-child{text-align:right}
 
.gen-fila{
  display:grid;grid-template-columns:96px 1fr 74px;
  gap:12px;align-items:center;
  padding:7px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateX(-8px);
  transition:opacity .45s ease, transform .45s ease;
  transition-delay:calc(.12s + var(--i) * .07s);
}
.gen.is-live .gen-fila{opacity:1;transform:none}
 
.gen-nom{
  font-family:var(--font-mono);font-size:12.5px;
  color:var(--ink);letter-spacing:.02em;
}
.gen-pista{height:7px;background:var(--line);border-radius:4px;overflow:hidden}
.gen-relleno{
  height:100%;width:0;border-radius:4px;
  transition:width .8s cubic-bezier(.22,.8,.28,1);
  transition-delay:calc(.3s + var(--i) * .07s);
}
.gen.is-live .gen-relleno{width:var(--w)}
 
.is-luad .gen-relleno{background:var(--accent)}
.is-brca .gen-relleno{background:var(--data)}
 
.gen-coh{
  font-family:var(--font-mono);font-size:10.5px;
  letter-spacing:.08em;text-align:right;
}
.is-luad .gen-coh{color:var(--accent)}
.is-brca .gen-coh{color:#0F766E}
 
.gen-escala{
  margin-top:9px;font-family:var(--font-mono);
  font-size:9.5px;letter-spacing:.06em;color:var(--ink-faint);
}
 
/* ── Panel de lectura biológica ─────────────────────────── */
.gen-panel{
  background:var(--surface);
  border:1px solid var(--line-strong);
  border-left:3px solid var(--accent);
  border-radius:12px;padding:24px 26px;
  opacity:0;transform:translateY(12px);
  transition:opacity .6s ease 1.15s, transform .6s ease 1.15s;
}
.gen.is-live .gen-panel{opacity:1;transform:none}
 
.gen-panel-tag{
  display:block;font-family:var(--font-mono);
  font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:12px;
}
.gen-panel h3{
  font-family:var(--font-display);font-size:19px;
  font-weight:500;color:var(--ink);line-height:1.3;margin-bottom:12px;
}
.gen-panel p{font-size:13.5px;line-height:1.62;color:var(--ink-soft)}
.gen-panel p + p{margin-top:10px}
.gen-panel strong{color:var(--ink);font-weight:500}
 
.gen-par{
  display:grid;gap:10px;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
}
.gen-par div{display:grid;grid-template-columns:88px 1fr;gap:12px;align-items:baseline}
.gen-par dt{
  font-family:var(--font-mono);font-size:12px;
  color:var(--accent);letter-spacing:.02em;
}
.gen-par dd{font-size:12.5px;line-height:1.5;color:var(--ink-soft)}
.gen-par dd b{color:var(--ink);font-weight:500}
 
.gen-nota{
  margin-top:24px;padding-left:18px;
  border-left:2px solid var(--line-strong);
  font-size:13.5px;line-height:1.6;color:var(--ink-faint);
  max-width:92ch;
  opacity:0;transition:opacity .6s ease 1.5s;
}
.gen.is-live + .gen-nota{opacity:1}
.gen-nota strong{color:var(--ink-soft);font-weight:500}
 
@media(max-width:900px){
  .gen{grid-template-columns:1fr;gap:26px}
}
@media(prefers-reduced-motion:reduce){
  .gen-fila,.gen-relleno,.gen-panel,.gen-nota{transition:none}
}

*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-weight:300;-webkit-font-smoothing:antialiased}
 
.tour-section{min-height:100vh;display:flex;align-items:center;padding:46px var(--gutter)}
.tour-inner{width:100%;max-width:1180px;margin:0 auto}
.tour-h2{font-family:var(--font-display);font-size:clamp(26px,3.1vw,42px);font-weight:400;line-height:1.14;letter-spacing:-.02em;margin-bottom:12px}
.tour-h2 strong{font-weight:500;color:var(--accent)}
.tour-lead{font-size:clamp(14px,1.15vw,17px);line-height:1.6;color:var(--ink-soft);max-width:76ch}
 
/* ── Bloques de código ──────────────────────────────────── */
.cods{display:grid;grid-template-columns:1fr 1fr;gap:clamp(22px,3vw,40px);margin-top:34px;align-items:start}
 
.cod{
  opacity:0;transform:translateY(14px);
  transition:opacity .6s ease, transform .6s ease;
  transition-delay:calc(var(--n) * .3s);
}
.cods.is-live .cod{opacity:1;transform:none}
 
.cod-tit{
  font-family:var(--font-display);font-size:16px;
  font-weight:500;color:var(--ink);margin-bottom:5px;
}
.cod-sub{font-size:13px;line-height:1.5;color:var(--ink-soft);margin-bottom:14px}
 
.cod-caja{
  background: var(--ink);
  border: 1px solid #1B3450;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(12,30,48,.14);
}

.cod-cab{
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  background: #08192B;
  border-bottom: 1px solid #1B3450;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: #7E93A8;
  letter-spacing: .02em;
}
.cod-cab i{ width:7px; height:7px; border-radius:50%; background:#2A4560; }
.cod-cab i:first-child{ background:#5A91FF; }

.cod-caja pre{
  margin: 0;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.75;
  color: #C3D0DE;
  overflow-x: auto;
  tab-size: 2;
}

.k  { color:#C39BF5; }   /* palabra clave */
.f  { color:#6FA8FF; }   /* función / clase */
.s  { color:#5EE0D0; }   /* cadena */
.n  { color:#F5B851; }   /* número */
.c  { color:#8496A8; font-style:italic; }   /* comentario */
.hl { background:rgba(111,168,255,.14); display:block; margin:0 -18px; padding:0 18px; }
 
.cod-nota{
  margin-top:12px;padding-left:14px;
  border-left:2px solid var(--line-strong);
  font-size:12.5px;line-height:1.55;color:var(--ink-faint);
}
.cod-nota strong{color:var(--ink-soft);font-weight:500}
 
.cods-pie{
  display:flex;flex-wrap:wrap;gap:12px 30px;
  margin-top:26px;padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13.5px;color:var(--ink-soft);
  opacity:0;transition:opacity .6s ease 1s;
}
.cods.is-live + .cods-pie{opacity:1}
.cods-pie a{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--accent);
  border-bottom:1px solid var(--line-strong);padding-bottom:2px;
}
.cods-pie a:hover{border-color:var(--accent)}
 
@media(max-width:900px){ .cods{grid-template-columns:1fr;gap:24px} }
@media(prefers-reduced-motion:reduce){ .cod,.cods-pie{transition:none} }

.card-met {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.card-met dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 4px;
}

.card-met dd {
  font-family: var(--font-display);
  font-size: clamp(20px, 1.7vw, 26px);
  font-weight: 500;
  color: var(--ink);
}
/* =============================================================
   PANTALLA DE ACCESO A LA DEMO (capítulo 04)
   ============================================================= */

body.gate-page {
  min-height: 100vh;
  padding-top: var(--header-h);
  padding-bottom: var(--foot-h);
  background: radial-gradient(120% 90% at 50% -10%, #FFFFFF 0%, #EEF3FA 55%, #E6EDF6 100%);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

.gate-top { padding: 34px 44px; }
.gate-top img { height: 42px; width: auto; display: block; }
.gate-top a:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; border-radius: 4px; }

.gate-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 24px 60px;
}

.gate-box { width: 100%; max-width: 620px; text-align: center; }

.gate-eyebrow {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #C2410C;
  margin-bottom: 26px;
}

.gate-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.gate-title strong { font-weight: 500; color: var(--accent); }

.gate-text {
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.68;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 auto;
}

.gate-check {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  text-align: left;
  max-width: 48ch;
  margin: 38px auto 0;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.gate-check:hover { border-color: var(--ink-faint); }
.gate-check:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(22, 82, 240, 0.12); }

.gate-check input {
  width: 19px;
  height: 19px;
  flex-shrink: 0;
  margin-top: 1px;
  accent-color: var(--accent);
  cursor: pointer;
}

.gate-check span { font-size: 14.5px; line-height: 1.55; color: var(--ink); }

.gate-actions {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.gate-btn {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  padding: 17px 38px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 15.5px;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

.gate-btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.gate-btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }

.gate-btn[aria-disabled="true"] {
  background: var(--line-strong);
  color: #8A98A8;
  cursor: not-allowed;
  transform: none;
}

.gate-btn[aria-disabled="true"]:hover { background: var(--line-strong); transform: none; }

.gate-alt {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 28px;
  font-size: 14px;
  color: var(--ink-soft);
}

.gate-alt a {
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

.gate-alt a:hover { color: var(--accent); border-color: var(--accent); }
.gate-alt a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

.gate-hint {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  min-height: 14px;
}

.gate-foot {
  padding: 24px 44px 30px;
  text-align: center;
  font-size: 12px;
  color: var(--ink-faint);
}

@media (max-width: 600px) {
  .gate-top { padding: 24px; }
  .gate-top img { height: 34px; }
  .gate-btn { width: 100%; justify-content: center; }
  .gate-check { margin-top: 30px; }
}

/* =============================================================
   MEJORAS FUTURAS (capítulo 06)
   ============================================================= */

.next-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  margin-top: 40px;
}

.next-head {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-bottom: 12px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.next-list { list-style: none; counter-reset: n; }

.next-list li {
  counter-increment: n;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.next-list li::before {
  content: counter(n, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--accent);
  padding-top: 3px;
}

.next-list b {
  grid-column: 2;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  display: block;
  margin-bottom: 3px;
}

.next-list span {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-soft);
}

.next-col:last-child .next-list { counter-reset: n 4; }

@media (max-width: 900px) {
  .next-grid { grid-template-columns: 1fr; gap: 32px; }
}


/* =============================================================
   PROPUESTA DE VALOR (capítulo 06)
   ============================================================= */

.prop {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  margin-top: 28px;
  align-items: center;
}

.prop-lead {
  font-size: clamp(15px, 1.25vw, 18px);
  line-height: 1.65;
  color: var(--ink-soft);
}

.prop-lead + .prop-lead { margin-top: 16px; }
.prop-lead strong { color: var(--ink); font-weight: 500; }

.prop-cost {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: 24px 28px;
  display: grid;
  gap: 10px;
  justify-items: center;
  text-align: center;
  max-width: 380px;
}

.prop-nota { max-width: none; margin-top: 30px; }

.cost-item { display: grid; gap: 7px; }

.cost-lab {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.cost-num {
  font-family: var(--font-display);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink-soft);
}

.cost-item.is-goal .cost-num { color: var(--accent); font-weight: 500; }
.cost-item.is-goal .cost-lab { color: var(--data); }

.cost-arrow { color: var(--line-strong); transform: rotate(90deg); }

.cost-src {
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  width: 100%;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-faint);
}

@media (max-width: 1040px) {
  .prop { grid-template-columns: 1fr; gap: 34px; }
}

.doc {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 30px;
}

.doc-photo {
  width: 108px;
  height: 108px;
  border-radius: 50%;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--data));
}

.doc-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
  transform: scale(1.35);
  display: block;
}

.doc-photo span {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  color: #fff;
}

.doc-org {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.doc-org img {
  height: 26px;
  width: auto;
  display: block;
  opacity: 0.7;
}

.prop-body {
  max-width: 460px;
  margin-left: auto;
}

@media (max-width: 720px) {
  .doc { grid-template-columns: 1fr; gap: 18px; justify-items: start; }
  .doc-photo { width: 84px; height: 84px; }
}





/* =============================================================
   EQUIPO (capítulo 07)
   ============================================================= */

.team {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 42px;
}

.member {
  background: var(--bg);
  padding: 30px 24px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.tour-section--surface .member { background: var(--surface); }

.member-photo {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--data));
  margin-bottom: 18px;
}

.member-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

.photo-initials {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  color: #fff;
  letter-spacing: 0.02em;
}

.member h4 {
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: 10px;
}

.member-bio {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 20px;
}

.member-links {
  margin-top: auto;
  width: 100%;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: center;
  gap: 16px;
}

.member-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--ink-faint);
  transition: color 0.2s ease, background 0.2s ease;
}

.member-links a:hover { color: var(--accent); background: var(--surface); }
.member-links a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.member-links svg { display: block; }

@media (max-width: 1040px) {
  .team { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .team { grid-template-columns: 1fr; }
  .member { padding: 26px 20px 20px; }
}

/* =============================================================
   AGRADECIMIENTOS (capítulo 07)
   ============================================================= */

.thanks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 360px)) 1fr;
  gap: 32px;
  justify-content: start;
  margin-top: 34px;
  align-items: start;
}

.thanks-msg {
  padding-left: 24px;
  padding-top: 34px;
}

.thanks-typed {
  font-family: var(--font-display);
  font-size: clamp(19px, 1.8vw, 26px);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink-faint);
  min-height: 4.5em;
}

.typed-hl {
  color: var(--ink);
  font-weight: 500;
}

.typed-ac { color: var(--accent); font-weight: 500; }

.typed-cur {
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 3px;
  vertical-align: -0.12em;
  background: var(--accent);
  animation: cur 1s step-end infinite;
}

.thanks-typed.is-done .typed-cur {
  animation: none;
  opacity: 0;
  transition: opacity 0.6s ease 0.8s;
}

@keyframes cur {
  0%, 50% { opacity: 1; }
  50.01%, 100% { opacity: 0; }
}

@media (max-width: 1040px) {
  .thanks { grid-template-columns: 1fr; gap: 34px; }
  .thanks-msg { padding: 0; }
}

.thanks-org {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 0;
  margin-bottom: 18px;
  border-bottom: none;
}

.thanks-org b {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 400;
}

.thanks-list { display: flex; flex-direction: column; gap: 4px; }

.person {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: center;
  padding: 12px 12px 12px 0;
  border-radius: 10px;
  transition: background 0.2s ease;
}

.person:hover { background: var(--bg); }

.person-photo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--data));
}

.person-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

.person-photo span {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: #fff;
}

.person-body { min-width: 0; }

.person-name {
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.3;
}

.person-role {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin-top: 3px;
}

.person-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.person-link:hover { text-decoration: underline; }
.person-link svg { display: block; flex-shrink: 0; }

.person.is-lead { grid-template-columns: 60px 1fr; }
.person.is-lead .person-photo { width: 60px; height: 60px; }
.person.is-lead .person-name { font-size: 17px; }

.person.is-special {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  padding: 14px 16px;
  margin-top: 10px;
}

.person-tag {
  display: inline-block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--data);
}

.thanks-close {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: clamp(18px, 1.7vw, 24px);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink-faint);
}

@media (max-width: 900px) {
  .thanks { grid-template-columns: 1fr; gap: 36px; }
}

/* =============================================================
   INSTITUCIONES (capítulo 07)
   ============================================================= */

.inst-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 420px));
  grid-auto-rows: 1fr;
  gap: 20px;
  margin-top: 42px;
  justify-content: start;
}

.inst-card {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 28px;
  align-items: center;
  padding: 24px 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.inst-logo {
  height: 56px;
  display: grid;
  place-items: center;
}

.inst-logo img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.inst-role {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 7px;
}

.inst-desc {
  font-size: 16px;
  line-height: 1.45;
  color: var(--ink-soft);
}

.inst-desc strong { color: var(--ink); font-weight: 500; }

.inst-credits {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 48px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  justify-content: flex-start;
}

.inst-credits div { display: flex; align-items: baseline; gap: 12px; }

.inst-credits dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.inst-credits dd { font-size: 13.5px; color: var(--ink-soft); }

@media (max-width: 900px) {
  .inst-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .inst-card { grid-template-columns: 96px 1fr; gap: 20px; padding: 20px; }
  .inst-credits { gap: 8px 24px; }
}

.tour-end-next.typed { min-height: 1.2em; }
.tour-end-next .typed-cur { height: 0.8em; width: 3px; }


/* =============================================================
   BOTÓN FLOTANTE DE SIGUIENTE APARTADO
   ============================================================= */

.tour-fab {
  position: fixed;
  right: 32px;
  bottom: 32px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  padding: 14px 24px;
  background: var(--accent);
  color: var(--surface);
  border: none;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 14.5px;
  cursor: pointer;
  box-shadow: 0 8px 26px rgba(12, 30, 48, 0.18);
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
}

.tour-fab.is-on { opacity: 1; transform: none; pointer-events: auto; }
.tour-fab:hover { background: var(--accent-hover); }
.tour-fab:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

@media (max-width: 720px) {
  .tour-fab { right: 16px; bottom: 16px; padding: 12px 20px; }
}

/* =============================================================
   BARRA INFERIOR
   ============================================================= */

:root { --foot-h: 46px; }

.tour-bar {
  position: fixed;
  inset: auto 0 0 0;
  height: var(--foot-h);
  z-index: 95;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  padding: 0 var(--gutter);
  background: rgba(251, 253, 255, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}

.tour-bar-tag {
  text-align: center;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-faint);
}

.tour-bar-prev {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--ink-faint);
  padding: 8px 14px;
  border-radius: 100px;
  transition: color 0.2s ease;
}

.tour-bar-prev:hover { color: var(--ink-soft); }
.tour-bar-prev:hover svg { transform: translateX(-3px); }
.tour-bar-prev svg { transition: transform 0.2s ease; }
.tour-bar-prev:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.tour-bar-next { justify-self: end; }

.tour-bar-prog {
  position: absolute;
  top: -1px;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  transition: width 0.15s linear;
}

.tour-bar-next {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--ink-soft);
  padding: 6px 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, color 0.2s ease, background 0.2s ease;
}

.tour-bar-next.is-vis { opacity: 1; pointer-events: auto; }

.tour-bar-next:hover { color: var(--accent); }
.tour-bar-next:hover svg { transform: translateX(3px); }

.tour-bar-next.is-end {
  color: var(--surface);
  background: var(--accent);
  border-radius: 100px;
  padding: 8px 18px;
}

.tour-bar-next.is-end:hover { background: var(--accent-hover); color: var(--surface); }

.tour-bar-next svg { transition: transform 0.2s ease; }
.tour-bar-next:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

@media (max-width: 720px) {
  .tour-bar { grid-template-columns: 1fr auto; }
  .tour-bar-tag, .tour-bar-prev { display: none; }
}

body.gate-page .tour-bar-next { opacity: 1; pointer-events: auto; }