/* ==========================================================================
   sitio 3.1 — sistema visual
   Reglas de la casa:
   1. Todo el contenido es visible por defecto. Ninguna animación lo revela
      por primera vez. Si el CSS no carga o el JS falla, se sigue leyendo todo.
   2. Cero fuentes externas, cero peticiones a terceros.
   3. El color no decora: comunica estado (verificado / validación / pendiente).
   ========================================================================== */

/* --- 1. Reset ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }

/* --- 2. Tokens ----------------------------------------------------------- */
:root {
  /* Marca */
  --navy: #0b1933;
  --navy-deep: #071226;
  --navy-soft: #142747;
  --teal: #00a7a5;
  --teal-claro: #7bd7d1;
  --teal-texto: #00706f;      /* teal legible sobre claro */
  --verde: #57b879;
  --verde-texto: #1c6b3d;
  --azul-texto: #1f5590;
  --pizarra: #4a5768;

  /* Superficies */
  --papel: #ffffff;
  --papel-alt: #f2f5f8;
  --papel-hueso: #f7f9fa;
  --tinta: #0e1c30;
  --tinta-suave: #55637a;
  --linea: #dde4ea;
  --linea-fuerte: #c6d0d9;

  /* Sobre oscuro */
  --claro: #f2f6f9;
  --claro-suave: #a8b6c6;
  --linea-oscura: rgba(255, 255, 255, .14);

  /* Tipografía */
  --serif: "Iowan Old Style", Baskerville, "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: "Avenir Next", Avenir, "Helvetica Neue", Helvetica, ui-sans-serif, system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Ritmo */
  --shell: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --sec-y: clamp(72px, 9vw, 132px);

  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;

  --sombra: 0 18px 50px rgba(7, 18, 38, .10);
  --sombra-fuerte: 0 30px 80px rgba(7, 18, 38, .22);

  --transicion: 180ms cubic-bezier(.2, .7, .3, 1);
}

/* --- 3. Base ------------------------------------------------------------- */
body {
  background: var(--papel-hueso);
  color: var(--tinta);
  font-family: var(--sans);
  font-size: clamp(1rem, .96rem + .18vw, 1.075rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.skip {
  position: absolute; left: 12px; top: -70px; z-index: 200;
  padding: 12px 18px; border-radius: var(--r-sm);
  background: var(--navy); color: #fff; font-weight: 600; text-decoration: none;
  transition: top var(--transicion);
}
.skip:focus { top: 12px; }

:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
  border-radius: 3px;
}

/* --- 4. Tipografía ------------------------------------------------------- */
.h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 1.3rem + 2.9vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -.022em;
  max-width: 20ch;
  margin-bottom: clamp(20px, 2.6vw, 32px);
}
.h2--sm { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); }
.h2--claro { color: var(--claro); }

.h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.2rem, 1.05rem + .6vw, 1.55rem);
  line-height: 1.2;
  letter-spacing: -.012em;
  margin-bottom: 10px;
}
.h3--claro { color: var(--claro); }
.h3--alerta { color: var(--pizarra); }

.kicker {
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--teal-texto);
  margin-bottom: 16px;
}
.kicker--claro { color: var(--teal-claro); }

.lead {
  font-size: clamp(1.06rem, 1rem + .3vw, 1.24rem);
  line-height: 1.6;
  color: var(--tinta-suave);
  max-width: 62ch;
  margin-bottom: 18px;
}
.lead--claro { color: var(--claro-suave); }

.link {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--teal-texto); font-weight: 650; text-underline-offset: 4px;
  text-decoration-line: underline; text-decoration-thickness: 1.5px;
}
.link--claro { color: var(--teal-claro); }
.link:hover { text-decoration-thickness: 3px; }

.nota-pie { font-size: .92rem; color: var(--tinta-suave); margin-top: 20px; }

/* --- 5. Botones ---------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 52px; padding: 14px 26px;
  border: 0; border-radius: 999px;
  background: var(--navy); color: #fff;
  font-weight: 650; font-size: 1rem; letter-spacing: .01em;
  text-decoration: none; cursor: pointer;
  transition: transform var(--transicion), box-shadow var(--transicion), background var(--transicion);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--sombra); }
.btn:active { transform: translateY(0); }
.btn--sm { min-height: 44px; padding: 10px 20px; font-size: .95rem; }
.btn--full { width: 100%; border-radius: var(--r-md); }
.btn--ghost {
  background: transparent; color: var(--claro);
  border: 1px solid var(--linea-oscura);
}
.btn--ghost:hover { background: rgba(255, 255, 255, .06); }
.btn[disabled] { opacity: .62; cursor: progress; transform: none; box-shadow: none; }

/* --- 6. Chips de evidencia ----------------------------------------------- */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px 5px 10px;
  border-radius: 999px;
  font-size: .78rem; font-weight: 700; letter-spacing: .015em;
  white-space: nowrap;
}
.chip__dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; flex: 0 0 auto; }
.chip--verificado { background: #e6f4eb; color: var(--verde-texto); }
.chip--validacion { background: #e8eff9; color: var(--azul-texto); }
.chip--pendiente  { background: #eef1f4; color: var(--pizarra); }

.sec--dark .chip--verificado { background: rgba(87, 184, 121, .16); color: #86dfa6; }
.sec--dark .chip--validacion { background: rgba(91, 158, 224, .18); color: #8fc2f0; }
.sec--dark .chip--pendiente  { background: rgba(255, 255, 255, .09); color: #a9b6c6; }

/* --- 7. Cabecera --------------------------------------------------------- */
.head {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247, 249, 250, .88);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--linea);
}
.head__in {
  display: flex; align-items: center; gap: 24px;
  min-height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; flex: 0 0 auto; }
.brand__mark { width: 44px; height: 44px; }
.brand__type { display: flex; flex-direction: column; gap: 3px; }
.brand__word { width: clamp(104px, 12vw, 150px); height: auto; }
.brand__sub {
  font-size: .52rem; font-weight: 800; letter-spacing: .3em;
  color: var(--teal-texto); padding-left: 2px;
}

.nav { display: none; gap: 26px; margin-left: auto; }
.nav a {
  font-size: .93rem; font-weight: 600; text-decoration: none;
  color: var(--tinta-suave); padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transicion), border-color var(--transicion);
}
.nav a:hover { color: var(--tinta); border-bottom-color: var(--teal); }

.head__acciones { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav + .head__acciones { margin-left: 0; }
.lang {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; min-height: 44px;
  border: 1px solid var(--linea-fuerte); border-radius: 999px;
  font-size: .82rem; font-weight: 800; letter-spacing: .06em; text-decoration: none;
  background: var(--papel);
}
.lang:hover { border-color: var(--teal); color: var(--teal-texto); }
.head__acciones .btn--sm { display: none; }

.burger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 0 11px;
  background: var(--papel); border: 1px solid var(--linea-fuerte); border-radius: 999px;
  cursor: pointer;
}
.burger span { display: block; height: 2px; background: var(--navy); border-radius: 2px; transition: transform var(--transicion); }
.burger[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* Menú móvil.
   Sin JavaScript: los enlaces se muestran siempre (el sitio debe poder
   navegarse sin JS en un teléfono). Con JavaScript: se pliegan. */
.menu { border-top: 1px solid var(--linea); background: var(--papel); display: block; }
.js .menu { display: none; }
.js .menu[data-abierto] { display: block; }
.burger { display: none; }
.js .burger { display: inline-flex; }
.menu nav { display: flex; flex-direction: column; padding-block: 8px 20px; }
.menu a {
  display: flex; align-items: center; min-height: 52px;
  text-decoration: none; font-weight: 600; font-size: 1.06rem;
  border-bottom: 1px solid var(--linea);
}
.menu__cta { margin-top: 16px; justify-content: center; background: var(--navy); color: #fff; border-radius: 999px; border-bottom: 0 !important; }

/* --- 8. Hero ------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--navy-deep); color: var(--claro);
  padding-block: clamp(56px, 8vw, 104px) clamp(64px, 8vw, 112px);
}
.hero__grid {
  position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(rgba(123, 215, 209, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123, 215, 209, .07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 60% 30%, #000 40%, transparent 100%);
}
.hero__glow {
  position: absolute; width: 900px; height: 900px; right: -260px; top: -380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 167, 165, .40) 0%, rgba(0, 167, 165, 0) 62%);
}
.hero__in { position: relative; z-index: 2; }
.hero__title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.3rem, 1.2rem + 5.4vw, 5rem);
  line-height: 1.0; letter-spacing: -.03em;
  max-width: 17ch;
  margin-bottom: 22px;
}
.hero__lead {
  font-size: clamp(1.08rem, 1rem + .5vw, 1.34rem);
  color: var(--claro-suave); max-width: 56ch; margin-bottom: 32px;
}
.hero__acciones { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-bottom: clamp(44px, 6vw, 68px); }
.hero .btn { background: var(--teal); color: var(--navy-deep); }
.hero .btn:hover { background: #12bdbb; }

.tablero {
  border: 1px solid var(--linea-oscura);
  border-radius: var(--r-lg);
  background: rgba(7, 18, 38, .58);
  backdrop-filter: blur(8px);
  padding: clamp(24px, 3.4vw, 40px);
  max-width: 940px;
}
.tablero__etiqueta {
  font-size: .72rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase;
  color: var(--teal-claro); margin-bottom: 10px;
}
.tablero__titulo {
  font-family: var(--serif); font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem);
  font-weight: 400; margin-bottom: 26px;
}
.tablero__lista { list-style: none; padding: 0; display: grid; gap: 14px; margin-bottom: 26px; }
.tablero__item {
  display: grid; grid-template-columns: 3.2rem 1fr; align-items: baseline;
  gap: 6px 16px; padding-bottom: 14px;
  border-bottom: 1px solid var(--linea-oscura);
}
.tablero__num {
  font-family: var(--serif); font-size: clamp(2rem, 1.5rem + 1.6vw, 2.9rem);
  line-height: .9; color: #fff;
}
.tablero__desc { color: var(--claro-suave); font-size: .95rem; }
.tablero__texto { color: var(--claro-suave); font-size: .97rem; max-width: 68ch; }
.tablero__nota { margin-top: 12px; font-size: .86rem; color: rgba(168, 182, 198, .8); font-style: italic; }

/* --- 9. Secciones -------------------------------------------------------- */
.sec { padding-block: var(--sec-y); }
.sec--alt { background: var(--papel); border-block: 1px solid var(--linea); }
.sec--dark { background: var(--navy-deep); color: var(--claro); }
.sec--dark .lead, .sec--dark p { color: var(--claro-suave); }
.sec--legal { background: var(--papel-alt); border-top: 1px solid var(--linea); }

/* --- 10. Columnas -------------------------------------------------------- */
.cols3 { display: grid; gap: clamp(22px, 3vw, 40px); }
.col p { color: var(--tinta-suave); }
.col--verificado { border-top: 3px solid var(--verde); }
.col--validacion { border-top: 3px solid #5b9ee0; }
.col--pendiente  { border-top: 3px solid var(--linea-fuerte); }
.col__head { margin-bottom: 16px; }
.cols3--estado .col { padding-top: 22px; }

.lista-marcada { list-style: none; padding: 0; display: grid; gap: 12px; }
.lista-marcada li { position: relative; padding-left: 28px; color: var(--tinta-suave); }
.lista-marcada li::before {
  content: ""; position: absolute; left: 4px; top: .62em;
  width: 9px; height: 9px; border-radius: 50%; background: var(--linea-fuerte);
}
.lista-marcada--verificado li::before { background: var(--verde); }
.lista-marcada--validacion li::before { background: #5b9ee0; }

.noes {
  margin-top: clamp(34px, 4.4vw, 56px);
  padding: clamp(24px, 3vw, 36px);
  border: 1px dashed var(--linea-fuerte);
  border-radius: var(--r-md);
  background: var(--papel);
}
.noes .lista-marcada { margin-top: 14px; }

/* --- 11. Unidades -------------------------------------------------------- */
.unidades { display: grid; gap: 1px; background: var(--linea); border: 1px solid var(--linea); border-radius: var(--r-md); overflow: hidden; }
.unidad {
  background: var(--papel); padding: clamp(24px, 3vw, 38px);
  display: grid; gap: 10px; align-content: start;
  transition: background var(--transicion);
}
.unidad:hover { background: var(--papel-hueso); }
.unidad__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.unidad__cod { font-family: var(--mono); font-size: .8rem; font-weight: 700; color: var(--tinta-suave); letter-spacing: .08em; }
.unidad__logo { width: 104px; height: auto; }
.unidad__desc { font-size: .74rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; color: var(--teal-texto); }
.unidad__nombre { font-family: var(--serif); font-size: clamp(1.35rem, 1.15rem + .8vw, 1.85rem); font-weight: 600; letter-spacing: -.01em; }
.unidad__que { color: var(--tinta-suave); font-size: .98rem; }
.unidad__meta { display: grid; gap: 4px; margin-top: 6px; padding-top: 14px; border-top: 1px solid var(--linea); }
.unidad__meta dt { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--tinta-suave); margin-top: 8px; }
.unidad__meta dd { font-size: .93rem; color: var(--tinta); }

/* --- 12. Plan ------------------------------------------------------------ */
.fases { list-style: none; padding: 0; display: grid; gap: 0; margin-top: 8px; }
.fase {
  display: grid; grid-template-columns: 3rem 1fr; gap: 18px;
  padding-block: clamp(22px, 2.6vw, 32px);
  border-top: 1px solid var(--linea-oscura);
}
.fase:last-child { border-bottom: 1px solid var(--linea-oscura); }
.fase__num { font-family: var(--mono); font-size: .95rem; font-weight: 700; color: var(--teal-claro); padding-top: 6px; }
.fase__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; }
.fase__head .h3 { margin-bottom: 0; }
.fase__cuando { font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--teal-claro); }
.fase__cuerpo > p { margin-top: 10px; max-width: 72ch; }
.fase__compuerta {
  margin-top: 12px !important; padding-left: 16px;
  border-left: 2px solid var(--teal);
  font-size: .93rem; color: var(--claro) !important; font-weight: 600;
}
.fase__estado { margin-top: 14px; }

.figura { margin-top: clamp(40px, 5vw, 68px); }
.figura picture { display: block; }
.figura img { width: 100%; height: auto; border-radius: var(--r-md); opacity: .92; }
.figura figcaption { margin-top: 12px; font-size: .86rem; color: rgba(168, 182, 198, .85); }

/* --- 13. LUCA + árbol ---------------------------------------------------- */
.sec--luca .h2 { max-width: 24ch; }
.luca__grid { display: grid; gap: 6px 40px; margin-bottom: clamp(30px, 4vw, 46px); }
.luca__arbol {
  margin-block: clamp(30px, 4vw, 50px);
  padding: clamp(14px, 2.4vw, 30px);
  border: 1px solid var(--linea-oscura);
  border-radius: var(--r-lg);
  background: rgba(7, 18, 38, .5);
}
.tree { width: 100%; height: auto; }
.ramas path { stroke-dasharray: 1; stroke-dashoffset: 0; }
.rama--punteada { stroke-dasharray: 6 7 !important; opacity: .75; }
.tn__disc { fill: #0c2544; stroke: var(--teal); stroke-width: 1.8; }
.tn--luca .tn__disc { fill: #0f3057; stroke: var(--teal-claro); stroke-width: 2.6; }
.tn--verde .tn__disc { stroke: var(--verde); }
.tn__label { fill: #dfeaf1; font-family: var(--sans); font-size: 15px; font-weight: 700; letter-spacing: .05em; }
.tn--luca .tn__label { fill: #fff; font-size: 17px; letter-spacing: .18em; }
.tl { fill: var(--teal-claro); font-family: var(--sans); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }

.luca__sinjs { font-size: .88rem; color: rgba(168, 182, 198, .85); margin-top: 14px; }

.hitos { list-style: none; padding: 0; display: grid; gap: clamp(20px, 2.6vw, 32px); margin-top: clamp(34px, 4vw, 52px); }
.hito__num { font-family: var(--mono); font-size: .82rem; font-weight: 700; color: var(--teal-claro); }
.hito p { max-width: 46ch; }

.precision {
  margin-top: clamp(36px, 4.6vw, 56px);
  padding: clamp(22px, 3vw, 32px);
  border-left: 3px solid var(--teal);
  background: rgba(0, 167, 165, .07);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.precision__titulo { font-weight: 800; letter-spacing: .06em; text-transform: uppercase; font-size: .76rem; color: var(--teal-claro); margin-bottom: 10px; }
.precision__nota { margin-top: 10px; font-style: italic; }

/* --- 14. Rutas ----------------------------------------------------------- */
.rutas { display: grid; gap: 20px; }
.ruta {
  background: var(--papel); border: 1px solid var(--linea); border-radius: var(--r-md);
  padding: clamp(22px, 3vw, 34px);
  display: grid; gap: 12px; align-content: start;
  transition: box-shadow var(--transicion), transform var(--transicion), border-color var(--transicion);
}
.ruta:hover { box-shadow: var(--sombra); transform: translateY(-3px); border-color: var(--linea-fuerte); }
.ruta--destacada { border-color: var(--teal); box-shadow: 0 0 0 1px var(--teal) inset; }
.ruta__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ruta__etiqueta { font-size: .74rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--teal-texto); }
.ruta__meta { display: grid; gap: 2px; }
.ruta__meta dt { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--tinta-suave); margin-top: 12px; }
.ruta__meta dd { font-size: .95rem; }
.ruta__nota { font-size: .88rem; color: var(--tinta-suave); font-style: italic; margin-top: 6px; }
.rutas__cta { margin-top: clamp(30px, 4vw, 44px); }

/* --- 15. Evidencia ------------------------------------------------------- */
.resumen { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 22px; margin-bottom: 26px; }
.resumen__item { display: inline-flex; align-items: center; gap: 8px; }
.resumen__item strong { font-family: var(--serif); font-size: 1.5rem; font-weight: 600; }
.resumen__total { font-size: .88rem; color: var(--tinta-suave); }

.tabla-envoltura { overflow-x: auto; border: 1px solid var(--linea); border-radius: var(--r-md); background: var(--papel); }
.tabla { width: 100%; border-collapse: collapse; min-width: 720px; }
.tabla th, .tabla td { text-align: left; padding: 16px 20px; border-bottom: 1px solid var(--linea); vertical-align: top; }
.tabla th {
  font-size: .74rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase;
  color: var(--tinta-suave); background: var(--papel-hueso); position: sticky; top: 0;
}
.tabla tbody tr:last-child td { border-bottom: 0; }
.tabla tbody tr:hover { background: var(--papel-hueso); }
.tabla td:first-child { font-weight: 600; }
.tabla td:nth-child(2) { width: 1%; white-space: nowrap; }
.tabla td:last-child { color: var(--tinta-suave); font-size: .94rem; max-width: 34ch; }

/* --- 16. FAQ y legal ----------------------------------------------------- */
.faq, .legal { display: grid; gap: 0; max-width: 880px; }
.faq__item, .legal__item { border-bottom: 1px solid var(--linea); }
.faq__item:first-child, .legal__item:first-child { border-top: 1px solid var(--linea); }
.faq__q {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  min-height: 62px; padding: 18px 0;
  font-weight: 650; font-size: clamp(1rem, .96rem + .3vw, 1.14rem);
  cursor: pointer; list-style: none;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
  content: ""; flex: 0 0 auto;
  width: 12px; height: 12px;
  border-right: 2px solid var(--teal-texto); border-bottom: 2px solid var(--teal-texto);
  transform: rotate(45deg); transition: transform var(--transicion);
}
details[open] > .faq__q::after { transform: rotate(-135deg); }
.faq__r { padding-bottom: 22px; max-width: 72ch; color: var(--tinta-suave); }
.faq__r p + p { margin-top: 12px; }

.legal { max-width: none; }
.legal__pendiente { color: var(--pizarra); font-weight: 700; }

/* --- 17. Contacto y formulario ------------------------------------------- */
.contacto { display: grid; gap: clamp(36px, 5vw, 64px); }
.contacto__correo { margin-top: 24px; font-size: 1.1rem; }
.contacto__correo a { color: var(--teal-claro); text-underline-offset: 4px; }
.despues { padding-left: 20px; display: grid; gap: 10px; margin-top: 14px; color: var(--claro-suave); }

.panel {
  background: var(--papel); color: var(--tinta);
  border-radius: var(--r-lg); padding: clamp(24px, 3.4vw, 40px);
  box-shadow: var(--sombra-fuerte);
}
.form__titulo { font-weight: 800; letter-spacing: .12em; text-transform: uppercase; font-size: .76rem; color: var(--teal-texto); margin-bottom: 20px; }
.form__grid { display: grid; gap: 18px; }
.campo { display: grid; gap: 7px; }
.campo label { font-size: .86rem; font-weight: 650; }
.req { color: var(--tinta-suave); font-weight: 500; font-size: .78rem; }
.campo input, .campo select, .campo textarea {
  width: 100%; min-height: 50px; padding: 12px 14px;
  border: 1px solid var(--linea-fuerte); border-radius: var(--r-sm);
  background: var(--papel-hueso);
  transition: border-color var(--transicion), box-shadow var(--transicion);
}
.campo textarea { min-height: 118px; resize: vertical; }
.campo input::placeholder, .campo textarea::placeholder { color: #6b7789; }
.campo input:focus-visible, .campo select:focus-visible, .campo textarea:focus-visible {
  border-color: var(--teal); outline: none; box-shadow: 0 0 0 3px rgba(0, 167, 165, .22);
}
.trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.consentimiento { display: grid; grid-template-columns: 22px 1fr; gap: 12px; align-items: start; margin-top: 18px; font-size: .88rem; color: var(--tinta-suave); }
.consentimiento input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--teal-texto); }
.form__error { margin-top: 14px; padding: 12px 14px; border-radius: var(--r-sm); background: #fdeceb; color: #8c2d22; font-size: .92rem; font-weight: 600; }
.form .btn { margin-top: 20px; }
.form__campo--error input, .form__campo--error textarea { border-color: #b42318; }

.exito { text-align: left; }
.exito__marca {
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 50%;
  background: #e6f4eb; color: var(--verde-texto); font-size: 1.5rem; font-weight: 700;
  margin-bottom: 18px;
}
.exito .h3 { margin-bottom: 10px; }
.exito p { color: var(--tinta-suave); }
.exito .btn { margin-top: 22px; }
.btn--ghost.exito-btn, .exito .btn--ghost { background: transparent; color: var(--tinta); border: 1px solid var(--linea-fuerte); }

/* --- 18. Pie ------------------------------------------------------------- */
.pie { background: var(--navy); color: var(--claro-suave); padding-block: clamp(48px, 6vw, 76px) 30px; }
.pie__grid { display: grid; gap: 36px; }
.pie .brand__word { filter: brightness(0) invert(1); }
.pie .brand__sub { color: var(--teal-claro); }
.pie__cierre { margin-top: 20px; max-width: 40ch; font-size: .95rem; }
.pie__titulo { font-size: .74rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; color: #fff; margin-bottom: 14px; }
.pie__nav { display: flex; flex-direction: column; gap: 4px; }
.pie__nav a { min-height: 40px; display: inline-flex; align-items: center; text-decoration: none; font-size: .95rem; }
.pie__nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.pie__legal {
  display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between;
  margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--linea-oscura);
  font-size: .82rem;
}
.pie__entrega { display: none; }

/* --- 19. 404 ------------------------------------------------------------- */
.cuarto { padding-block: 18vh; min-height: 70vh; }
.cuarto .lead { margin-bottom: 8px; }

/* --- 20. Movimiento (adorno, nunca requisito) ---------------------------- */
@media (prefers-reduced-motion: no-preference) {
  .hero__title, .hero__lead, .hero__acciones, .tablero {
    animation: sube .7s cubic-bezier(.16, .84, .3, 1) backwards;
  }
  .hero__lead { animation-delay: .06s; }
  .hero__acciones { animation-delay: .12s; }
  .tablero { animation-delay: .18s; }

  .ramas path { animation: traza 1.7s cubic-bezier(.22, .8, .35, 1) backwards; }
  .ramas path:nth-child(2) { animation-delay: .12s; }
  .ramas path:nth-child(3) { animation-delay: .26s; }
  .ramas path:nth-child(4) { animation-delay: .38s; }
  .ramas path:nth-child(5) { animation-delay: .5s; }
  .ramas path:nth-child(6) { animation-delay: .62s; }
  .ramas path:nth-child(7) { animation-delay: .74s; }
  .ramas path:nth-child(8) { animation-delay: .86s; }
  .ramas path:nth-child(9) { animation-delay: .98s; }
  .ramas path:nth-child(10) { animation-delay: 1.1s; }

  .tn { animation: aparece .5s ease backwards; }
  .tn--n1 { animation-delay: .10s; }
  .tn--n2 { animation-delay: .30s; }
  .tn--n3 { animation-delay: .30s; }
  .tn--n4 { animation-delay: .55s; }
  .tn--n5 { animation-delay: .55s; }
  .tn--n6 { animation-delay: .80s; }
  .tn--n7 { animation-delay: 1.00s; }
  .tn--n8 { animation-delay: 1.00s; }
  .tn--n9 { animation-delay: 1.00s; }
  .tn--n10 { animation-delay: 1.15s; }
}

@keyframes sube { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes traza { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes aparece { from { opacity: 0; } to { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* --- 21. Responsive ------------------------------------------------------ */
@media (min-width: 700px) {
  .menu nav { flex-direction: row; flex-wrap: wrap; gap: 8px 28px; align-items: center; }
  .menu a { min-height: 44px; border-bottom: 0; }
  .menu__cta { margin-top: 0; padding-inline: 22px; }
  .form__grid { grid-template-columns: 1fr 1fr; }
  .campo--ancho { grid-column: 1 / -1; }
  .cols3--estado { grid-template-columns: repeat(3, 1fr); }
  .hitos { grid-template-columns: repeat(3, 1fr); }
  .luca__grid { grid-template-columns: 1.1fr .9fr; }
  .pie__grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .tablero__item { grid-template-columns: 4rem 12rem 1fr; align-items: center; }
}

@media (min-width: 960px) {
  .nav { display: flex; }
  .head__acciones .btn--sm { display: inline-flex; }
  .burger, .js .burger { display: none; }
  .menu { display: none !important; }
  .cols3 { grid-template-columns: repeat(3, 1fr); }
  .unidades { grid-template-columns: repeat(3, 1fr); }
  .rutas { grid-template-columns: repeat(2, 1fr); }
  .contacto { grid-template-columns: 1fr 1fr; align-items: start; }
  .pie__entrega { display: block; }
  .figura img { max-height: 460px; object-fit: cover; }
  .hitos { gap: 34px; }
}

@media (min-width: 1200px) {
  .cols3 { gap: 48px; }
}

/* --- 22. Ajustes de la revisión: densidad y plegables -------------------- */
:root { --sec-y: clamp(60px, 6.4vw, 100px); }

.h2 { margin-bottom: clamp(16px, 2vw, 26px); }

.tabla th, .tabla td { padding: 12px 18px; }

.figura--banda img { max-height: 300px; width: 100%; object-fit: cover; object-position: center 38%; }
.figura--banda { margin-top: clamp(30px, 4vw, 48px); }

/* La tabla de evidencia vive plegada: superficie corta, profundidad a un clic. */
.evidencia {
  margin-top: clamp(30px, 4vw, 46px);
  border: 1px solid var(--linea);
  border-radius: var(--r-md);
  background: var(--papel);
  overflow: hidden;
}
.evidencia__abrir {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 64px; padding: 18px 24px;
  cursor: pointer; list-style: none;
  font-weight: 700; font-size: clamp(1rem, .95rem + .3vw, 1.12rem);
  color: var(--tinta);
  transition: background var(--transicion);
}
.evidencia__abrir::-webkit-details-marker { display: none; }
.evidencia__abrir:hover { background: var(--papel-hueso); }
.evidencia__abrir::after {
  content: ""; flex: 0 0 auto; width: 11px; height: 11px;
  border-right: 2px solid var(--teal-texto); border-bottom: 2px solid var(--teal-texto);
  transform: rotate(45deg); transition: transform var(--transicion);
}
.evidencia[open] .evidencia__abrir::after { transform: rotate(-135deg); }
.evidencia__abrir-resumen {
  font-family: var(--mono); font-size: .82rem; font-weight: 700;
  color: var(--tinta-suave); letter-spacing: .08em;
}
.evidencia__cuerpo { padding: 4px 24px 26px; }
.evidencia[open] .evidencia__cuerpo { border-top: 1px solid var(--linea); padding-top: 22px; }
.evidencia .tabla-envoltura { margin-top: 4px; }

/* Aviso legal dentro del pie */
.pie__aviso { margin-top: 40px; border-top: 1px solid var(--linea-oscura); padding-top: 18px; }
.pie__aviso-q {
  display: flex; align-items: center; gap: 12px;
  min-height: 44px; cursor: pointer; list-style: none;
  font-size: .82rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase;
  color: var(--claro-suave);
}
.pie__aviso-q::-webkit-details-marker { display: none; }
.pie__aviso-q:hover { color: #fff; }
.pie__aviso-cuerpo { padding-block: 8px 4px; }
.pie__aviso .faq__q { color: var(--claro); min-height: 52px; border-color: var(--linea-oscura); }
.pie__aviso .faq__r { color: var(--claro-suave); }
.pie__aviso .faq__q::after { border-color: var(--teal-claro); }
.pie__aviso .faq__item, .pie__aviso .legal__item { border-color: var(--linea-oscura); }
.pie__aviso .legal__pendiente { color: #fff; }
.pie__aviso .legal { max-width: 90ch; }

/* --- 23. Correcciones de contraste --------------------------------------- */
/* `.sec--dark p` alcanzaba también a los párrafos del formulario, que vive en
   una tarjeta BLANCA dentro de una sección oscura: el texto quedaba claro
   sobre blanco (2,06:1). Se devuelve el color correcto dentro del panel. */
.sec--dark .panel p,
.sec--dark .panel .form__titulo,
.sec--dark .panel .exito p { color: var(--tinta-suave); }
.sec--dark .panel .form__titulo { color: var(--teal-texto); }
.sec--dark .panel h3 { color: var(--tinta); }
.sec--dark .panel .consentimiento { color: var(--tinta-suave); }
.sec--dark .panel .req { color: var(--tinta-suave); }