/* ============================================================
   AXIOM LABORATORY — lector de fichas (tema compartido)
   Mismo sistema que la app y que axiomlabs.es:
   marco oscuro + papel crema + paneles blancos + cian de apoyo.
   ============================================================ */

:root{
  --bg: #13120F;
  --ink: #E9E7E1;
  --ink-dim: #8A887F;
  --hair: rgba(233,231,225,0.10);
  --cyan: #1EC8E8;

  --paper: #F4F1E9;
  --ink-on: #13120F;
  --ink-on-soft: #3A3935;
  --ink-on-dim: #5A584F;
  --ink-on-mute: #8A887F;
  --hair-on: rgba(19,18,15,0.08);
  --hair-on-strong: rgba(19,18,15,0.16);
  --cyan-on: #0F8FA8;
  --panel-grad: linear-gradient(180deg, #FFFFFF 0%, #FBF8EF 100%);
  --panel-border: rgba(19,18,15,0.16);
  --panel-shadow: 0 16px 48px -20px rgba(19,18,15,0.18), 0 2px 8px rgba(19,18,15,0.05);
  --neg: #9F3322;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior: auto; } }
html, body{
  margin:0; padding:0;
  background:
    linear-gradient(to right, rgba(19,18,15,0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(19,18,15,0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 44px 44px, 44px 44px, auto;
  color: var(--ink-on);
  font-family: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a{ color: var(--cyan-on); text-decoration: none; }
a:hover{ text-decoration: underline; }

/* ---------- scroll reveal (idéntico al sitio) ---------- */
[data-reveal]{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
[data-reveal].is-visible{ opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce){
  [data-reveal]{ opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   BARRA SUPERIOR (marco oscuro)
   ============================================================ */
.topbar{
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 18px;
  height: 64px;
  padding: 0 28px;
  background: rgba(19,18,15,0.92);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--hair);
  color: var(--ink);
}
.topbar .back{
  color: var(--ink);
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 8px 0;
}
.topbar .back:hover{ color: #fff; text-decoration: none; }
.topbar .back .arr{ color: var(--cyan); margin-right: 8px; }
.topbar .spacer{ flex: 1; }
.topbar .crumb{
  font-size: 12.5px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-dim);
}
.topbar .crumb b{ color: var(--cyan); font-weight: 600; }

/* ============================================================
   LAYOUT: columna de lectura + índice lateral
   ============================================================ */
.wrap{
  max-width: 1360px;
  margin: 0 auto;
  padding: 48px 36px 120px;
  display: grid;
  grid-template-columns: minmax(0, 880px) 260px;
  gap: 72px;
  align-items: start;
  justify-content: space-between;
}
.toc{
  position: sticky; top: 92px;
  border-left: 1px solid var(--hair-on-strong);
  padding-left: 22px;
}
.toc .toc-t{
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-on-mute);
  margin-bottom: 12px;
}
.toc a{
  display: block;
  font-size: 14.5px; line-height: 1.5;
  color: var(--ink-on-dim);
  padding: 6px 0;
}
.toc a:hover{ color: var(--ink-on); text-decoration: none; }
.toc a.on{ color: var(--cyan-on); font-weight: 600; }

/* ============================================================
   CABECERA DE FICHA
   ============================================================ */
.ficha-head{ margin-bottom: 40px; }
.ficha-head .kicker{
  font-size: 13px; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--cyan-on);
  margin: 0 0 12px;
}
.ficha-head h1{
  font-size: clamp(34px, 4.6vw, 46px);
  font-weight: 600; letter-spacing: -0.015em; line-height: 1.08;
  margin: 0 0 14px;
}
.ficha-head .lede{
  font-size: 19px; line-height: 1.6; color: var(--ink-on-soft);
  margin: 0;
}

/* ============================================================
   CUERPO
   ============================================================ */
section{ margin: 0 0 56px; }
.pieza-k{
  font-size: 12.5px; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--cyan-on);
  margin: 0 0 8px;
}
h2{
  font-size: 30px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.15;
  margin: 0 0 12px;
}
h3{
  font-size: 17.5px; font-weight: 700;
  margin: 26px 0 8px;
}
p{ margin: 0 0 15px; font-size: 17px; line-height: 1.72; color: var(--ink-on-soft); }
p strong, li strong{ color: var(--ink-on); font-weight: 700; }
ul, ol{ margin: 0 0 15px; padding-left: 26px; }
li{ margin-bottom: 9px; font-size: 17px; line-height: 1.7; color: var(--ink-on-soft); }
li::marker{ color: var(--cyan-on); font-weight: 700; }

/* etiquetas del molde (qué es / analogía / …) */
.molde{
  display: inline-block;
  font-size: 11.5px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--cyan-on);
  background: rgba(15,143,168,0.10);
  border: 1px solid rgba(15,143,168,0.22);
  border-radius: 999px;
  padding: 3px 11px;
  margin: 0 6px 0 0;
  vertical-align: 2px;
}

/* caja blanca genérica */
.box{
  background: var(--panel-grad);
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  box-shadow: var(--panel-shadow);
  padding: 20px 24px;
  margin: 20px 0;
}
.box .box-t{
  font-size: 12.5px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-on-mute);
  margin-bottom: 10px;
}
.box p:last-child{ margin-bottom: 0; }

/* tarjeta oscura = idea-compuerta (el «viceversa» de la marca) */
.key{
  position: relative;
  background:
    radial-gradient(520px 180px at 18% -50px, rgba(30,200,232,0.10), transparent 60%),
    var(--bg);
  color: var(--ink);
  border: 1px solid rgba(19,18,15,0.30);
  border-radius: 16px;
  box-shadow: 0 24px 48px -24px rgba(19,18,15,0.55);
  padding: 22px 28px;
  margin: 24px 0;
}
.key .key-t{
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 8px;
}
.key p{ color: var(--ink); margin: 0; font-size: 17.5px; line-height: 1.65; }
.key p + p{ margin-top: 10px; }
.key p strong{ color: #fff; }

/* aviso rojo ladrillo (cuándo miente / peligro) */
.warn-line{
  display: flex; gap: 12px;
  background: rgba(159,51,34,0.055);
  border: 1px solid rgba(159,51,34,0.18);
  border-radius: 12px;
  padding: 15px 19px;
  margin: 16px 0;
  font-size: 15.5px; line-height: 1.68; color: var(--ink-on-soft);
}
.warn-line .k{
  flex: 0 0 auto;
  font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--neg); padding-top: 3px;
}

/* ============================================================
   EXPERIMENTOS INTERACTIVOS
   ============================================================ */
.exp{
  background: var(--panel-grad);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  box-shadow: var(--panel-shadow);
  padding: 24px 28px;
  margin: 24px 0;
  position: relative;
}
.exp::before{
  content:"";
  position:absolute; top:0; left:10%; right:10%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan-on) 50%, transparent 100%);
  opacity: 0.85;
}
.exp .exp-t{
  font-size: 12.5px; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--cyan-on);
  margin-bottom: 6px;
}
.exp .exp-sub{
  font-size: 15px; line-height: 1.62; color: var(--ink-on-dim);
  margin-bottom: 16px;
}
.exp .como-leer{
  background: rgba(19,18,15,0.03);
  border: 1px solid var(--hair-on);
  border-radius: 10px;
  padding: 13px 17px;
  font-size: 15px; line-height: 1.65; color: var(--ink-on-soft);
  margin-bottom: 18px;
}
.exp .como-leer .k{
  display:block;
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-on-mute); margin-bottom: 5px;
}

/* controles */
.controls{
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  margin: 14px 0;
}
.ctrl{ display: flex; flex-direction: column; gap: 7px; min-width: 230px; flex: 1; }
.ctrl .lab{
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-on-mute);
  display: flex; justify-content: space-between; gap: 10px;
}
.ctrl .lab .val{ color: var(--cyan-on); letter-spacing: 0.02em; }
input[type="range"]{
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px; border-radius: 2px;
  background: rgba(19,18,15,0.15);
  outline: none;
}
input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--ink-on);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 1.5px var(--ink-on), 0 4px 10px rgba(19,18,15,0.3);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb{
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink-on);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 1.5px var(--ink-on);
  cursor: pointer;
}

.btn{
  display: inline-block;
  font-family: inherit;
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--paper);
  background: var(--ink-on);
  border: 1px solid var(--ink-on);
  border-radius: 999px;
  padding: 10px 20px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn:hover{ box-shadow: 0 10px 24px -10px rgba(19,18,15,0.5); }
.btn.ghost{
  color: var(--ink-on);
  background: transparent;
  border-color: var(--hair-on-strong);
}
.btn.ghost:hover{ border-color: var(--ink-on); }
.btn.seg{ border-radius: 8px; padding: 8px 14px; }
.btn.seg.off{
  background: transparent; color: var(--ink-on-dim);
  border-color: var(--hair-on-strong);
}

canvas.lienzo{
  display: block; width: 100%; height: auto;
  background: #FFFFFF;
  border: 1px solid var(--hair-on-strong);
  border-radius: 10px;
}

/* lecturas del experimento */
.reads{ display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.read{
  flex: 1; min-width: 160px;
  background: rgba(19,18,15,0.03);
  border: 1px solid var(--hair-on);
  border-radius: 10px;
  padding: 12px 16px;
}
.read .r-v{ font-size: 28px; font-weight: 700; color: var(--ink-on); line-height: 1.1; }
.read .r-v.cy{ color: var(--cyan-on); }
.read .r-v.ng{ color: var(--neg); }
.read .r-k{ font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-on-mute); margin-top: 6px; line-height: 1.4; }
.verdict{
  margin-top: 14px;
  border-radius: 10px;
  padding: 13px 17px;
  font-size: 15.5px; font-weight: 600; line-height: 1.58;
}
/* un veredicto todavía sin texto no debe dejar una caja hueca en la página */
.verdict:empty{ display: none; }
.verdict.ok{ background: rgba(15,143,168,0.08); border: 1px solid rgba(15,143,168,0.25); color: var(--ink-on); }
.verdict.ko{ background: rgba(159,51,34,0.07); border: 1px solid rgba(159,51,34,0.25); color: var(--neg); }

/* barras comparativas (listón / desinflador) */
.bars{ margin-top: 6px; }
.bar-row{ margin: 12px 0; }
.bar-row .b-lab{
  display:flex; justify-content: space-between;
  font-size: 13.5px; font-weight: 600; letter-spacing: 0.04em;
  color: var(--ink-on-dim); margin-bottom: 6px;
}
.bar-row .b-lab .b-val{ color: var(--ink-on); font-weight: 700; }
.bar-track{
  height: 14px; border-radius: 7px;
  background: rgba(19,18,15,0.07);
  position: relative; overflow: visible;
}
.bar-fill{
  height: 100%; border-radius: 7px;
  background: var(--cyan-on);
  transition: width .7s cubic-bezier(.2,.7,.2,1), background .4s ease;
  position: relative;
}
.bar-fill.dark{ background: var(--ink-on); }
.bar-fill.neg{ background: var(--neg); }
.bar-mark{
  position: absolute; top: -6px; bottom: -6px; width: 2.5px;
  background: var(--neg); border-radius: 2px;
  transition: left .7s cubic-bezier(.2,.7,.2,1);
}
.bar-mark .m-lab{
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--neg); white-space: nowrap;
}

/* franja de bloques temporales (lotería del corte, ficha 1.2) */
.blocks-strip{
  display: flex; gap: 5px;
  margin: 14px 0 4px;
}
.blocks-strip .blk{
  flex: 1; height: 34px;
  border-radius: 7px;
  background: rgba(19,18,15,0.07);
  border: 1px solid var(--hair-on);
  transition: background .3s ease, border-color .3s ease, transform .3s ease;
}
.blocks-strip .blk.oos{
  background: rgba(15,143,168,0.35);
  border-color: var(--cyan-on);
  transform: translateY(-2px);
}

/* intervalo (barra de error) */
.interval-wrap{ padding: 26px 6px 6px; }
.interval-axis{
  position: relative; height: 60px;
  border-bottom: 1px solid var(--hair-on-strong);
}
.interval-band{
  position: absolute; top: 18px; height: 16px; border-radius: 8px;
  background: rgba(15,143,168,0.18);
  border: 1px solid rgba(15,143,168,0.4);
  transition: left .5s cubic-bezier(.2,.7,.2,1), width .5s cubic-bezier(.2,.7,.2,1);
}
.interval-dot{
  position: absolute; top: 16px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--ink-on); border: 3px solid #fff;
  box-shadow: 0 2px 8px rgba(19,18,15,0.35);
  transform: translateX(-50%);
  transition: left .5s cubic-bezier(.2,.7,.2,1);
}
.interval-zero{
  position: absolute; top: 6px; bottom: -1px; width: 2px;
  background: var(--neg);
}
.interval-zero .z-lab{
  position: absolute; top: -18px; left: 50%; transform: translateX(-50%);
  font-size: 11.5px; font-weight: 700; color: var(--neg); letter-spacing: 0.08em;
}
.interval-ticks{ position: relative; height: 22px; }
.interval-ticks span{
  position: absolute; transform: translateX(-50%);
  font-size: 12px; color: var(--ink-on-mute); font-weight: 600;
}

/* duelo del desinflador */
.duel{ display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.duel .d-card{
  background: rgba(19,18,15,0.03);
  border: 1px solid var(--hair-on-strong);
  border-radius: 12px;
  padding: 16px 18px;
}
.duel .d-t{ font-size: 13.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-on-dim); margin-bottom: 4px; }
.duel .d-sub{ font-size: 13.5px; color: var(--ink-on-mute); margin-bottom: 12px; }
.duel .d-verd{
  margin-top: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  opacity: 0; transition: opacity .5s ease .4s;
}
.duel .d-verd.show{ opacity: 1; }
.duel .d-verd.ok{ color: var(--cyan-on); }
.duel .d-verd.ko{ color: var(--neg); }

/* ============================================================
   PARA EL INGENIERO (apéndice plegable)
   ============================================================ */
details.ing{
  background: var(--panel-grad);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  box-shadow: var(--panel-shadow);
  padding: 0;
  margin: 24px 0;
  overflow: hidden;
}
details.ing summary{
  list-style: none;
  cursor: pointer;
  padding: 20px 26px;
  display: flex; align-items: center; gap: 14px;
  font-size: 17px; font-weight: 700; color: var(--ink-on);
}
details.ing summary::-webkit-details-marker{ display: none; }
details.ing summary .chev{
  flex: 0 0 auto;
  width: 26px; height: 26px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--ink-on); color: var(--paper);
  font-size: 13px;
  transition: transform .3s ease;
}
details.ing[open] summary .chev{ transform: rotate(90deg); }
details.ing summary .s-sub{ font-size: 14px; font-weight: 500; color: var(--ink-on-mute); }
details.ing .ing-body{ padding: 4px 28px 26px; border-top: 1px solid var(--hair-on); }
.eq{
  text-align: center;
  margin: 22px 0;
  overflow-x: auto;
  padding: 6px 0;
}
.eq .katex{ font-size: 1.12em; }
.eqlabel{
  display:block; text-align:center;
  font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-on-mute); margin-top: 8px;
}
table{ width:100%; border-collapse: collapse; margin: 16px 0; font-size: 15px; }
th, td{ border: 1px solid var(--hair-on-strong); padding: 10px 14px; text-align: left; background: #fff; line-height: 1.55; }
thead th{
  background: var(--ink-on); color: var(--paper);
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  border-color: rgba(242,239,231,0.25);
}
td.num, th.num{ text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* fuentes */
.fuentes{
  border-top: 1px solid var(--hair-on-strong);
  margin-top: 30px; padding-top: 18px;
  font-size: 14px; line-height: 1.7; color: var(--ink-on-dim);
  /* las URL son cadenas sin espacios: en pantalla estrecha tienen que poder partirse
     (sin guiones de partición — R5 sigue intacta para la prosa de lectura) */
  overflow-wrap: anywhere;
}
.fuentes b{ color: var(--ink-on); }

/* ============================================================
   NAVEGACIÓN INFERIOR ENTRE FICHAS
   ============================================================ */
.ficha-nav{
  display: flex; gap: 14px; justify-content: space-between; align-items: stretch;
  border-top: 1px solid var(--hair-on-strong);
  margin-top: 24px; padding-top: 26px;
}
.ficha-nav a{
  flex: 1;
  background: var(--panel-grad);
  border: 1px solid var(--panel-border);
  border-radius: 13px;
  box-shadow: var(--panel-shadow);
  padding: 16px 20px;
  color: var(--ink-on);
}
.ficha-nav a:hover{ text-decoration: none; border-color: var(--cyan-on); }
.ficha-nav a.next{ text-align: right; }
.ficha-nav .fn-k{
  font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--cyan-on); display: block; margin-bottom: 5px;
}
.ficha-nav .fn-t{ font-size: 16px; font-weight: 600; }

/* ============================================================
   RESPONSIVE — Regla 2: tipografía legible y ancho aprovechado.
   Base (≤1679px): columna 880px + índice 260px — llena un
   MacBook Pro 14" (~1512px). Escalones hacia arriba: columna algo
   mayor y, desde 2100px, escalado uniforme (zoom) para que en el
   ultrawide de 34" (3440×1440) la letra y los experimentos crezcan
   en vez de quedar la ficha como un sello en medio de la crema.
   ============================================================ */

/* pantallas grandes (1680–2099px) */
@media (min-width: 1680px){
  .wrap{
    max-width: 1560px;
    grid-template-columns: minmax(0, 960px) 280px;
    gap: 96px;
    padding: 56px 44px 130px;
  }
}

/* muy grandes (2100–2799px, p. ej. 2560×1440): escalado 1.15× */
@media (min-width: 2100px){
  body{ zoom: 1.15; }
  .wrap{ max-width: 1620px; }
}

/* ultrawide (≥2800px, monitor 34" 3440×1440): escalado 1.3× */
@media (min-width: 2800px){
  body{ zoom: 1.3; }
  .wrap{ max-width: 1680px; }
}

/* pantallas estrechas */
@media (max-width: 1000px){
  .wrap{ grid-template-columns: 1fr; padding: 36px 22px 90px; }
  .toc{ display: none; }
  .duel{ grid-template-columns: 1fr; }
}