/* ==========================================================================
   NXHUMANS — Site styles · DS v1.0 · 2026
   ========================================================================== */
@import url("tokens.css");

:root { --nav-h: 72px; }

/* EL ASPECTO CLARO (07/10, Carlos: «estilo NX Build»). El sistema de diseño
   trae el oscuro por defecto; la web pasa a claro, como NX Build: papel claro
   de fondo, tarjetas blancas, texto casi negro, y el grafito solo en la barra
   de arriba y en los bloques de cierre. La marca (cian → azul → violeta) se
   queda en botones, degradados y detalles. */
:root {
  --bg:        #f4f5f8;
  --surface:   #ffffff;
  --surface-2: #f7f8fb;
  --border:    #e3e6ee;
  --border-2:  #cfd5e1;
  --text:      #12151f;
  --text-mute: #555c6d;
  --velo:      rgba(18,21,31,0.04);
  --velo-2:    rgba(18,21,31,0.07);
  --success:   #12976a;

  /* El grafito de la barra (el de NX Build, un punto más frío). */
  --grafito:        #14161d;
  --grafito-borde:  rgba(255,255,255,0.10);
  --grafito-texto:  #a4aab8;
  --grafito-claro:  #f6f7fa;

  /* El degradado de la marca, legible sobre claro (el cian del logo no llega
     al contraste en un texto). */
  --g-texto: linear-gradient(120deg, #0b8fdc 0%, #1c6dff 48%, #4a2bd9 100%);

  /* LA LETRA (08/10): Bricolage Grotesque en toda la web, la fuente de la
     marca. Su eje de tamaño óptico (opsz) se ajusta solo: más apretada y con
     carácter en los titulares, más abierta en el texto. Geist Mono, para las
     etiquetas y el código. */
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body:    "Bricolage Grotesque", system-ui, -apple-system, sans-serif;
  --font-mono:    "Geist Mono", ui-monospace, "SF Mono", monospace;

  --sh-sm:  0 1px 2px rgba(18,21,31,0.06), 0 1px 1px rgba(18,21,31,0.04);
  --sh-md:  0 4px 12px -2px rgba(18,21,31,0.12), 0 2px 4px rgba(18,21,31,0.06);
  --sh-lg:  0 16px 40px -8px rgba(18,21,31,0.20), 0 4px 12px rgba(18,21,31,0.07);
  --sh-2xl: 0 24px 56px -12px rgba(18,21,31,0.28), 0 6px 16px rgba(18,21,31,0.10);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 900px 520px at 50% 110%, rgba(30,189,255,0.06), transparent 60%);
  pointer-events: none;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

section { scroll-margin-top: calc(var(--nav-h) + 16px); }

/* ===== Fade-in (main.js IntersectionObserver) ===== */
.fade-in { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.visible { opacity: 1; transform: none; }
.fade-in.delay-1 { transition-delay: .08s; }
.fade-in.delay-2 { transition-delay: .16s; }
.fade-in.delay-3 { transition-delay: .24s; }
.fade-in.delay-4 { transition-delay: .32s; }
.fade-in.delay-5 { transition-delay: .40s; }

/* SAFARI Y LAS ESQUINAS (07/10): en el iPad, los brillos difuminados de
   dentro de una tarjeta redondeada se salen por la esquina; dibujar la
   tarjeta en su propia capa hace que Safari los recorte con el radio. */
.cierre, .puerta, .destacado, .menu-tarjeta, .bento-tarjeta, .portada { transform: translateZ(0); }

/* ===== Nav (07/10) =====
   Como la de NX Build: flotante, separada de los bordes, en grafito y con
   esquinas de 20 px. Al bajar se compacta y gana sombra (`.scrolled`, main.js).
   «Productos» abre un menú con los tres; en el móvil, un botón abre el menú
   entero, que cae desde la barra. */
#nav {
  position: fixed; top: 14px; left: 0; right: 0; z-index: 40;
  padding: 0 24px;
  pointer-events: none;
}
.nav-caja, #nav > .container {
  position: relative; max-width: 1200px; margin: 0 auto; padding: 0;
  pointer-events: auto;
}
#nav .nav-inner {
  height: 58px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 8px 0 20px;
  background: rgba(20,22,29,0.95);
  border: 1px solid var(--grafito-borde); border-radius: 20px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--sh-lg);
  transition: height .5s cubic-bezier(0.16,1,0.3,1), box-shadow .5s, background-color .5s;
}
/* Al cargar, la barra baja un poco y aparece, antes que el titular. */
#nav .nav-inner { animation: barra-entra .9s cubic-bezier(0.16,1,0.3,1) both; }
@keyframes barra-entra { from { opacity: 0; transform: translateY(-14px) scale(0.98); } to { opacity: 1; transform: none; } }
#nav.scrolled .nav-inner { height: 52px; background: rgba(20,22,29,0.9); box-shadow: var(--sh-2xl); }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand-logo { height: 21px; width: auto; display: block; }
.brand { gap: 10px; }
.nav-links {
  display: flex; align-items: center; gap: 4px; padding: 0; margin: 0;
  list-style: none;
}
.nav-links a, .nav-desplegar {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--r-full);
  font: 500 14px/1 var(--font-body); color: var(--grafito-texto);
  background: none; border: 0; cursor: pointer; white-space: nowrap;
  transition: color .2s, background-color .2s;
}
.nav-links a:hover, .nav-desplegar:hover, .nav-desplegar[aria-expanded="true"] {
  color: var(--grafito-claro); background: rgba(255,255,255,0.08);
}
.nav-desplegar svg { width: 14px; height: 14px; transition: transform .2s; }
.nav-desplegar[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-right { display: flex; align-items: center; gap: 6px; }
.nav-right .btn { padding: 10px 18px; font-size: 14px; }
/* El botón blanco sobre el grafito (la barra de las páginas legales). */
.btn-claro { background: var(--grafito-claro); color: var(--text); }
.btn-claro:hover { background: #fff; transform: translateY(-1px); }

/* El menú de Productos. */
.menu-productos {
  position: absolute; left: 50%; top: 100%; padding-top: 8px;
  width: min(820px, calc(100vw - 48px));
  transform: translate(-50%, -4px); opacity: 0; visibility: hidden;
  transition: opacity .2s, transform .2s, visibility .2s;
}
.menu-productos.abierto { transform: translate(-50%, 0); opacity: 1; visibility: visible; }
.menu-productos-caja {
  display: grid; grid-template-columns: minmax(0,1.3fr) minmax(0,1fr); gap: 8px;
  padding: 8px; border-radius: 20px;
  background: var(--grafito); border: 1px solid var(--grafito-borde);
  box-shadow: var(--sh-2xl);
}
.producto-enlace {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 12px; border-radius: 14px; color: var(--grafito-claro);
  transition: background-color .2s;
}
a.producto-enlace:hover { background: var(--velo-2); }
.producto-icono {
  display: grid; place-items: center; flex-shrink: 0;
  width: 40px; height: 40px; border-radius: 12px;
  background: rgba(255,255,255,0.05); border: 1px solid var(--grafito-borde);
}
.producto-icono img { width: 24px; height: auto; }
.producto-icono svg { width: 18px; height: 18px; color: #6ea2ff; }
.producto-nombre { display: flex; align-items: center; gap: 8px; font-size: 14.5px; font-weight: 600; }
.producto-texto { display: block; margin-top: 3px; font-size: 13px; line-height: 1.45; color: var(--grafito-texto); }
.producto-estado {
  padding: 2px 8px; border-radius: var(--r-full);
  font-size: 11px; font-weight: 600; letter-spacing: 0.01em;
  background: rgba(255,255,255,0.07); color: var(--grafito-texto);
}
.producto-estado-si { background: rgba(78,224,168,0.12); color: #4ee0a8; }
.menu-tarjeta {
  position: relative; display: flex; flex-direction: column; justify-content: flex-end;
  min-height: 240px; padding: 16px; border-radius: 14px; overflow: hidden;
  color: #fff;
}
.menu-tarjeta img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: left top;
  transition: transform .5s;
}
.menu-tarjeta:hover img { transform: scale(1.04); }
.menu-tarjeta::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(10,12,18,0.92), rgba(10,12,18,0.35) 55%, rgba(10,12,18,0.05));
}
.menu-tarjeta > span { position: relative; z-index: 2; }
.menu-tarjeta-titulo { font-size: 15px; font-weight: 600; line-height: 1.35; }
.menu-tarjeta-texto { margin-top: 4px; font-size: 13px; line-height: 1.45; color: rgba(255,255,255,0.75); }
.menu-tarjeta-ir { margin-top: 12px; font-size: 13px; font-weight: 500; }
.menu-tarjeta-ir::after { content: " →"; display: inline-block; transition: transform .25s; }
.menu-tarjeta:hover .menu-tarjeta-ir::after { transform: translateX(3px); }

/* ===== Hamburger + mobile menu ===== */
.hamburger {
  display: none; position: relative;
  width: 40px; height: 40px; padding: 0;
  background: transparent; border: 0; border-radius: 50%;
  color: var(--grafito-claro); cursor: pointer;
}
.hamburger:hover { background: rgba(255,255,255,0.08); }
.hamburger span {
  position: absolute; left: 13px; width: 14px; height: 1.75px; border-radius: 2px;
  background: currentColor;
  transition: transform .3s cubic-bezier(0.16,1,0.3,1), top .3s cubic-bezier(0.16,1,0.3,1);
}
.hamburger span:first-child { top: 16px; }
.hamburger span:last-child { top: 22.5px; }
.hamburger[aria-expanded="true"] span:first-child { top: 19px; transform: rotate(45deg); }
.hamburger[aria-expanded="true"] span:last-child { top: 19px; transform: rotate(-45deg); }
.mobile-menu {
  position: absolute; left: 0; right: 0; top: 100%; padding-top: 8px;
  transform-origin: top;
  transform: translateY(-8px) scale(0.97); opacity: 0; visibility: hidden;
  transition: opacity .3s cubic-bezier(0.16,1,0.3,1), transform .3s cubic-bezier(0.16,1,0.3,1), visibility .3s;
}
.mobile-menu.open { transform: none; opacity: 1; visibility: visible; }
.mobile-menu-caja {
  display: flex; flex-direction: column;
  padding: 8px; border-radius: 20px;
  background: var(--grafito); border: 1px solid var(--grafito-borde);
  box-shadow: var(--sh-2xl);
}
.mobile-menu-caja > * { transition: opacity .5s cubic-bezier(0.16,1,0.3,1), transform .5s cubic-bezier(0.16,1,0.3,1); opacity: 0; transform: translateY(-4px); }
.mobile-menu.open .mobile-menu-caja > * { opacity: 1; transform: none; }
.mobile-menu.open .mobile-menu-caja > *:nth-child(2) { transition-delay: 50ms; }
.mobile-menu.open .mobile-menu-caja > *:nth-child(3) { transition-delay: 90ms; }
.mobile-menu.open .mobile-menu-caja > *:nth-child(4) { transition-delay: 120ms; }
.mobile-menu.open .mobile-menu-caja > *:nth-child(5) { transition-delay: 150ms; }
.mobile-menu-titulo {
  margin: 0; padding: 8px 12px 4px;
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.07em; color: #7d8494;
}
.mobile-menu-caja a:not(.btn) {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; border-radius: 12px;
  font-size: 15px; color: var(--grafito-claro);
}
.mobile-menu-caja a:not(.btn):hover { background: var(--velo-2); }
.mobile-menu-caja .producto-estado { margin-left: auto; }
.mobile-menu-separa { height: 1px; margin: 8px 0; background: var(--grafito-borde); }
.mobile-menu-caja .btn { margin-top: 8px; justify-content: center; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 500; font-size: 14.5px;
  padding: 12px 22px; border-radius: var(--r-full);
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .2s, box-shadow .25s, background .25s, border-color .2s;
  color: var(--text);
}
.btn-primary {
  background: var(--g-brand); color: #fff;
  box-shadow: 0 8px 22px -8px rgba(28,109,255,0.55), inset 0 1px 0 rgba(255,255,255,0.22);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 30px -10px rgba(74,43,217,0.65), inset 0 1px 0 rgba(255,255,255,0.28); }
/* El secundario, blanco con borde (el «contorno» de NX Build). */
.btn-glass {
  background: var(--surface); color: var(--text);
  border-color: var(--border-2); box-shadow: var(--sh-sm);
}
.btn-glass:hover { transform: translateY(-1px); border-color: var(--ink-4); box-shadow: var(--sh-md); }
.btn-ghost { background: transparent; color: var(--text-mute); padding: 12px 16px; }
.btn-ghost:hover { color: var(--text); }
.btn-lg { font-size: 16px; padding: 15px 28px; }

/* ===== Section common ===== */
section { padding: 96px 0; position: relative; }
.section-head { max-width: 760px; margin: 0 auto 64px; text-align: center; }
.section-label {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: var(--fs-mono);
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--nx-blue); margin-bottom: 20px;
}
.section-label::before, .section-label::after {
  content: ""; width: 24px; height: 1px; background: var(--border-2);
}
.section-label[data-align="left"]::after { display: none; }
.section-title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(32px, 4.2vw, 48px); line-height: 1.08;
  letter-spacing: -0.0125em; margin: 0 0 20px;
}
.section-title-left { text-align: left; }
.section-title .grad,
h1 .grad,
h2 .grad {
  background: var(--g-texto);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-desc { font-size: 18px; color: var(--text-mute); line-height: 1.6; }
.section-desc-left { text-align: left; }
.no-bottom-margin { margin-bottom: 0; }

/* ===== Hero (07/10, segunda versión) =====
   Titular grande a la izquierda en Archivo ancha; a la derecha, abajo, la
   entradilla y los botones. Debajo, la placa en grafito con el símbolo NX en
   grande (el único color de la portada) y las tres puertas. */
#hero { position: relative; isolation: isolate; padding: 156px 0 72px; overflow: hidden; }
.hero-fondo { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero-fondo::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(18,21,31,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(18,21,31,0.06) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: center top;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 70%);
          mask-image: linear-gradient(to bottom, #000, transparent 70%);
}
.hero-cabeza {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  column-gap: 56px; align-items: end;
}
.hero-h1 {
  grid-column: 1 / -1; margin: 0 0 40px;
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(40px, 7.4vw, 104px); line-height: 0.96; letter-spacing: -0.012em;
  color: var(--text);
}
.hero-h1 .linea { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; white-space: nowrap; }
.hero-h1 .linea > span { display: block; animation: sube 1.1s cubic-bezier(0.16, 1, 0.3, 1) both; animation-delay: var(--paso, 0ms); }
@keyframes sube { from { transform: translateY(105%); } to { transform: none; } }

.hero-lado { display: contents; }
.hero-lado .hero-sub { align-self: end; }
.hero-lado .hero-ctas { margin-top: 0; justify-content: flex-end; }
.hero-sub { margin: 0; font-size: 18px; line-height: 1.55; color: var(--text-mute); max-width: 40ch; text-wrap: pretty; }
.hero-ctas { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 28px; }

/* El botón negro, el principal de la portada (como el de OpenAI o Brex). */
.btn-negro { background: var(--text); color: #fff; box-shadow: var(--sh-md); }
.btn-negro:hover { transform: translateY(-1px); background: #000; box-shadow: var(--sh-lg); }

/* ===== Las tres puertas («Elastic Gallery», 21st.dev) =====
   Paneles en grafito en fila; el activo crece (flex) y enseña su texto. */
.puertas {
  list-style: none; margin: 64px 0 0; padding: 0;
  display: flex; gap: 12px; height: 520px;
}
.puerta {
  position: relative; isolation: isolate; overflow: hidden;
  flex: 1 1 0; min-width: 0;
  display: flex; flex-direction: column; justify-content: flex-end;
  border-radius: 24px; background: var(--grafito); color: var(--grafito-claro);
  box-shadow: var(--sh-lg); cursor: pointer; outline: none;
  transition: flex-grow .7s cubic-bezier(0.16,1,0.3,1), box-shadow .4s;
}
.puerta.activa { flex-grow: 2.6; cursor: default; box-shadow: var(--sh-2xl); }
.puerta:focus-visible { box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--nx-blue); }
.puerta::after {
  /* Oscurece abajo, donde va el texto. */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(to top, rgba(20,22,29,1) 0%, rgba(20,22,29,0.92) 30%, rgba(20,22,29,0) 62%);
}
.puerta-imagen { position: absolute; inset: 0; z-index: -2; overflow: hidden; }
.puerta-texto { padding: 28px; display: flex; flex-direction: column; gap: 6px; }
.puerta-num { font-family: var(--font-mono); font-size: 12px; color: #7d8494; }
.puerta-titulo {
  margin: 2px 0 0; text-wrap: balance;
  font-family: var(--font-display); font-weight: 500;
  font-size: 24px; letter-spacing: -0.01em;
}
/* El texto y el enlace solo en el abierto: aparecen cuando ya ha crecido. */
.puerta-mas {
  display: grid; grid-template-rows: 0fr; opacity: 0;
  transition: grid-template-rows .5s cubic-bezier(0.16,1,0.3,1), opacity .3s;
}
.puerta-mas > * { min-height: 0; }
.puerta-mas { overflow: hidden; }
.puerta.activa .puerta-mas { grid-template-rows: 1fr; opacity: 1; transition-delay: .18s; }
.puerta-mas p { margin: 4px 0 0; font-size: 15.5px; line-height: 1.55; color: var(--grafito-texto); max-width: 44ch; }
.puerta-ir { display: inline-block; margin-top: 16px; font-size: 14px; font-weight: 500; color: var(--grafito-claro); }
.puerta-ir:not(.puerta-ir-no)::after { content: " →"; display: inline-block; transition: transform .25s cubic-bezier(0.16,1,0.3,1); }
.puerta-ir:hover::after { transform: translateX(3px); }
.puerta-ir-no { color: #7d8494; }

/* 01 · A medida: lo disperso girando alrededor de un solo sistema
   («Orbiting Circles», Magic UI). Dos anillos que giran en sentidos
   contrarios; cada ficha gira al revés que su anillo para quedarse derecha. */
.puerta-imagen-medida {
  display: grid; place-items: start center; padding-top: 16px;
  background: radial-gradient(60% 50% at 50% 30%, rgba(28,109,255,0.18), transparent 70%);
}
.orbita { position: relative; width: 340px; height: 340px; flex-shrink: 0; zoom: 0.86; }
.orbita-anillo {
  position: absolute; left: 50%; top: 50%; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.09); transform: translate(-50%, -50%);
}
.orbita-anillo-1 { width: 200px; height: 200px; }
.orbita-anillo-2 { width: 330px; height: 330px; border-style: dashed; border-color: rgba(255,255,255,0.07); }
.orbita-giro { position: absolute; inset: 0; animation: orbita 40s linear infinite; }
.orbita-giro-2 { animation-duration: 60s; animation-direction: reverse; }
@keyframes orbita { to { transform: rotate(360deg); } }
.satelite {
  --r: 100px;
  position: absolute; left: 50%; top: 50%; width: 0; height: 0;
  transform: rotate(var(--a)) translateY(calc(-1 * var(--r)));
}
.anillo-2 { --r: 165px; }
.satelite-ficha {
  position: absolute; left: -21px; top: -21px; width: 42px; height: 42px;
  display: grid; place-items: center; border-radius: 12px;
  background: linear-gradient(180deg, #232733, #1a1d26);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 8px 20px -6px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.08);
  color: #c6ccda;
  /* Deshace el giro del anillo y el ángulo propio: la ficha queda derecha. */
  animation: orbita-contra 40s linear infinite;
  transform: rotate(calc(-1 * var(--a)));
}
.anillo-2 .satelite-ficha { animation-duration: 60s; animation-direction: reverse; }
@keyframes orbita-contra { from { rotate: 0deg; } to { rotate: -360deg; } }
.satelite-ficha svg { width: 19px; height: 19px; }
.orbita-centro {
  position: absolute; left: 50%; top: 50%; width: 86px; height: 86px;
  transform: translate(-50%, -50%);
  display: grid; place-items: center; border-radius: 24px;
  background: linear-gradient(160deg, rgba(255,255,255,0.10), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: 0 0 0 8px rgba(28,109,255,0.06), 0 20px 50px -10px rgba(28,109,255,0.55), inset 0 1px 0 rgba(255,255,255,0.18);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.orbita-centro::before {
  /* Un pulso de luz que sale del centro hacia los anillos. */
  content: ""; position: absolute; inset: -1px; border-radius: inherit;
  border: 1px solid rgba(110,162,255,0.5);
  animation: pulso 3.2s cubic-bezier(0.16,1,0.3,1) infinite;
}
@keyframes pulso { from { transform: scale(1); opacity: .8; } to { transform: scale(2.6); opacity: 0; border-radius: 50%; } }
.orbita-centro img { width: 46px; height: auto; filter: drop-shadow(0 0 12px rgba(30,189,255,0.45)); }

/* 02 · Producto propio: la pantalla real de NX Build, inclinada. */
.puerta-imagen-producto img {
  position: absolute; top: 40px; left: 32px; width: 820px; max-width: none; height: auto;
  border-radius: 12px; border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6);
  transform: perspective(1400px) rotateY(-10deg) rotateX(4deg);
  transform-origin: left top;
  transition: transform .9s cubic-bezier(0.16,1,0.3,1);
}
.puerta.activa .puerta-imagen-producto img { transform: perspective(1400px) rotateY(-4deg) rotateX(2deg); }

/* 03 · Próximamente: los logos de NX Growth y NX Brain, como dos piezas
   todavía en el plano de montaje (cuadrícula fina y borde discontinuo). */
.puerta-imagen-pronto {
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  gap: 16px; padding: 56px 28px 0;
}
.puerta-imagen-pronto::before {
  /* La cuadrícula de montaje, que se desvanece hacia abajo. Va aparte para
     que el desvanecido no toque los logos (antes los dejaba grises abajo). */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px) center top / 24px 24px,
    linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px) center top / 24px 24px;
  -webkit-mask-image: linear-gradient(to bottom, #000 45%, transparent 75%);
          mask-image: linear-gradient(to bottom, #000 45%, transparent 75%);
}
.pronto-pieza {
  position: relative; z-index: 0; width: min(100%, 300px); padding: 22px 26px;
  border-radius: 18px; border: 1px dashed rgba(255,255,255,0.18);
  background: rgba(20,22,29,0.7);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  transition: transform .7s cubic-bezier(0.16,1,0.3,1), border-color .4s;
}
.pronto-pieza img { display: block; width: 100%; height: auto; }
.pronto-growth { transform: translateX(-14px) rotate(-2deg); }
.pronto-brain { transform: translateX(14px) rotate(1.5deg); }
.puerta.activa .pronto-pieza { transform: none; border-color: rgba(255,255,255,0.28); }
.pronto-growth::after, .pronto-brain::after {
  /* El brillo de su color, detrás de cada pieza. */
  /* Degradado y no blur: Safari en el iPad dibuja mal el desenfoque. */
  content: ""; position: absolute; inset: 0 -10%; z-index: -1;
  background: radial-gradient(closest-side, var(--brillo) 40%, transparent); opacity: .35;
}
.pronto-growth::after { --brillo: #00c6a0; }
.pronto-brain::after { --brillo: #cce825; }

/* La entrada en cascada. Sin JS ni movimiento, todo visible desde el principio. */
.entra { animation: entra 1s cubic-bezier(0.16, 1, 0.3, 1) both; animation-delay: var(--paso, 0ms); }
@keyframes entra {
  from { opacity: 0; transform: translateY(14px); filter: blur(8px); }
  to   { opacity: 1; transform: none; filter: blur(0); }
}

/* Botón con flecha que avanza al pasar el ratón, como en NX Build. */
.btn-flecha::after {
  content: "→"; display: inline-block; margin-left: 2px;
  transition: transform .25s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn-flecha:hover::after { transform: translateX(3px); }

/* ===== Lo que construimos (07/10): bento con escenas =====
   Cabecera como la de la portada (título grande a la izquierda, texto a la
   derecha). Tarjetas blancas; cada una con su escena arriba, sobre papel
   claro con cuadrícula fina, y su texto abajo. Las escenas solo se mueven
   cuando la tarjeta está a la vista (.visible). */
.bloque-cabeza {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px 56px; align-items: end; margin-bottom: 48px;
}
.bloque-titulo {
  margin: 0; font-family: var(--font-display); font-weight: 500;
  font-size: clamp(36px, 5vw, 64px); line-height: 1; letter-spacing: -0.012em;
}
.bloque-desc { margin: 0; font-size: 18px; line-height: 1.55; color: var(--text-mute); max-width: 44ch; text-wrap: pretty; }

.bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.bento-tarjeta {
  grid-column: span 2; display: flex; flex-direction: column;
  border-radius: 24px; background: var(--surface); border: 1px solid var(--border);
  box-shadow: var(--sh-sm); overflow: hidden;
  transition: transform .35s cubic-bezier(0.16,1,0.3,1), box-shadow .35s, border-color .35s;
}
.bento-tarjeta:hover { transform: translateY(-3px); box-shadow: var(--sh-lg); border-color: var(--border-2); }
.bento-ancha { grid-column: span 4; }
.bento-tarjeta:nth-child(2) { grid-column: span 2; }
.bento-texto { padding: 22px 26px 26px; }
.bento-texto h3 {
  margin: 0; font-family: var(--font-display); font-weight: 500;
  font-size: 21px; letter-spacing: -0.01em;
}
.bento-texto p { margin: 8px 0 0; font-size: 15px; line-height: 1.55; color: var(--text-mute); max-width: 52ch; }

.escena {
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(70% 80% at 50% 0%, rgba(28,109,255,0.07), transparent 70%),
    linear-gradient(to right, rgba(18,21,31,0.045) 1px, transparent 1px) center / 20px 20px,
    linear-gradient(to bottom, rgba(18,21,31,0.045) 1px, transparent 1px) center / 20px 20px,
    var(--surface-2);
}
/* Las animaciones esperan a que la tarjeta se vea. */
.escena * { animation-play-state: paused !important; }
.visible .escena * { animation-play-state: running !important; }

/* Texto de las escenas: pequeño, real y legible, como en un producto. */
.escena { height: 260px; font-family: var(--font-body); }
.escena .ventana {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset, 0 18px 40px -16px rgba(18,21,31,0.28), 0 2px 6px rgba(18,21,31,0.06);
}

/* ---------- 01 · Automatización: la factura que se lee y acaba en su registro (7 s) ---------- */
.escena-auto { --t: 7s; }
.factura {
  position: absolute; left: 7%; top: 26px; width: 196px; padding: 14px 14px 12px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 22px 44px -18px rgba(18,21,31,0.35), 0 2px 6px rgba(18,21,31,0.06);
  transform: rotate(-3deg); overflow: hidden; font-size: 10.5px; color: var(--text);
}
.factura-cabeza { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.factura-cabeza b { font-family: var(--font-display); font-size: 12px; letter-spacing: .08em; }
.factura-cabeza span { font-family: var(--font-mono); font-size: 9.5px; color: var(--text-mute); }
.factura-datos { margin: 8px 0; display: grid; gap: 4px; }
.fd { display: flex; justify-content: space-between; gap: 8px; padding: 3px 5px; margin: 0 -5px; border-radius: 5px; }
.fd dt { color: var(--text-mute); } .fd dd { margin: 0; font-weight: 500; }
.factura-lineas { display: grid; gap: 6px; padding: 8px 0; border-top: 1px dashed var(--border); border-bottom: 1px dashed var(--border); }
.factura-lineas span { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.factura-lineas i { height: 5px; flex: 1; border-radius: 3px; background: var(--border); }
.factura-lineas i.corta { flex: .6; }
.factura-lineas em { font-style: normal; font-family: var(--font-mono); font-size: 9.5px; color: var(--text-mute); }
.factura-total { margin-top: 8px; font-size: 11px; } .factura-total b { font-family: var(--font-mono); }
.fd-1 { animation: marca var(--t) infinite; --m: 12%; }
.fd-2 { animation: marca2 var(--t) infinite; }
.fd-3 { animation: marca3 var(--t) infinite; }
@keyframes marca  { 0%, 9% { background: transparent; box-shadow: none; } 12%, 88% { background: rgba(28,109,255,0.08); box-shadow: inset 0 0 0 1px rgba(28,109,255,0.35); } 96%, 100% { background: transparent; box-shadow: none; } }
@keyframes marca2 { 0%, 14% { background: transparent; box-shadow: none; } 17%, 88% { background: rgba(28,109,255,0.08); box-shadow: inset 0 0 0 1px rgba(28,109,255,0.35); } 96%, 100% { background: transparent; box-shadow: none; } }
@keyframes marca3 { 0%, 28% { background: transparent; box-shadow: none; } 31%, 88% { background: rgba(28,109,255,0.08); box-shadow: inset 0 0 0 1px rgba(28,109,255,0.35); } 96%, 100% { background: transparent; box-shadow: none; } }
.factura-lector {
  position: absolute; left: 0; right: 0; top: 0; height: 34px; pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgba(30,189,255,0.18) 70%, rgba(28,109,255,0.28));
  border-bottom: 1.5px solid #1c6dff; box-shadow: 0 6px 16px -4px rgba(28,109,255,0.6);
  animation: lector var(--t) cubic-bezier(.45,0,.55,1) infinite;
}
@keyframes lector { 0% { transform: translateY(-40px); opacity: 0; } 4% { opacity: 1; } 34% { transform: translateY(190px); opacity: 1; } 36%, 100% { transform: translateY(190px); opacity: 0; } }
.factura-sello {
  position: absolute; right: 10px; top: 36px; display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px 3px 6px; border-radius: var(--r-full); background: #e8f7f0; color: #0d7d57;
  font-size: 10px; font-weight: 600; box-shadow: 0 0 0 1px rgba(13,125,87,0.2);
  animation: sello var(--t) cubic-bezier(0.16,1,0.3,1) infinite;
}
.factura-sello svg { width: 11px; height: 11px; }
@keyframes sello { 0%, 35% { opacity: 0; transform: scale(.6); } 39%, 88% { opacity: 1; transform: none; } 96%, 100% { opacity: 0; } }

.auto-caminos { position: absolute; left: 33%; top: 0; width: 26%; height: 100%; overflow: visible; }
.auto-caminos path { fill: none; stroke: rgba(28,109,255,0.3); stroke-width: 1.2; stroke-dasharray: 3 5; vector-effect: non-scaling-stroke; }
.viajero {
  position: absolute; left: 31%; padding: 4px 9px; border-radius: var(--r-full); white-space: nowrap;
  background: var(--grafito); color: #fff; font-size: 10.5px; font-weight: 500;
  box-shadow: 0 8px 18px -6px rgba(28,109,255,0.55);
  animation: viaje var(--t) cubic-bezier(.55,0,.25,1) infinite; opacity: 0;
}
.viajero-1 { top: 62px; --y: 52px; animation-delay: 0s; }
.viajero-2 { top: 92px; --y: 30px; animation-delay: .12s; }
.viajero-3 { top: 142px; --y: -14px; animation-delay: .24s; }
@keyframes viaje {
  0%, 38% { opacity: 0; transform: translate(0, 0) scale(.9); }
  41% { opacity: 1; transform: translate(0, 0) scale(1); }
  56% { opacity: 1; transform: translate(200px, var(--y)) scale(.95); }
  60%, 100% { opacity: 0; transform: translate(230px, var(--y)) scale(.8); }
}
.registro {
  position: absolute; right: 5%; top: 46px; width: 330px; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 22px 44px -18px rgba(18,21,31,0.3), 0 2px 6px rgba(18,21,31,0.06);
  font-size: 10.5px;
}
.registro-barra { display: flex; align-items: center; gap: 5px; padding: 8px 12px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.registro-barra i { width: 7px; height: 7px; border-radius: 50%; background: var(--border-2); }
.registro-barra span { margin-left: 8px; font-weight: 600; color: var(--text-mute); }
.registro-tabla { padding: 4px 6px 8px; }
.rt { display: grid; grid-template-columns: 1.6fr .8fr 1fr 1fr; gap: 6px; align-items: center; padding: 7px 6px; border-radius: 6px; }
.rt + .rt { border-top: 1px solid var(--border); }
.rt-cabeza { font-size: 9.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-mute); }
.rt span:nth-child(3) { font-family: var(--font-mono); text-align: right; }
.estado { justify-self: end; padding: 2px 7px; border-radius: var(--r-full); background: #e8f7f0; color: #0d7d57; font-size: 9.5px; font-weight: 600; }
.rt-nueva { animation: fila-nueva var(--t) cubic-bezier(0.16,1,0.3,1) infinite; }
@keyframes fila-nueva {
  0%, 57% { opacity: 0; transform: translateY(-6px); background: transparent; }
  61% { opacity: 1; transform: none; background: rgba(28,109,255,0.12); }
  80%, 90% { opacity: 1; background: rgba(28,109,255,0.05); }
  97%, 100% { opacity: 0; }
}

/* ---------- 02 · Agentes: la pregunta, el «escribiendo» y la lista que entra (9 s) ---------- */
.escena-agente { --t: 9s; display: flex; align-items: flex-end; justify-content: center; padding: 18px 18px 0; }
.chat {
  width: 100%; max-width: 330px; height: 100%; display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border); border-bottom: 0; border-radius: 14px 14px 0 0;
  box-shadow: 0 -10px 40px -20px rgba(28,109,255,0.35), 0 2px 6px rgba(18,21,31,0.06);
  font-size: 11.5px; overflow: hidden;
}
.chat-barra { display: flex; align-items: center; gap: 8px; padding: 9px 12px; border-bottom: 1px solid var(--border); }
.chat-avatar { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 7px; background: var(--grafito); color: #6ea2ff; font-size: 8.5px; font-weight: 700; }
.chat-barra b { font-weight: 600; font-size: 12px; }
.chat-estado { margin-left: auto; display: inline-flex; align-items: center; gap: 5px; color: var(--text-mute); font-size: 10.5px; }
.chat-estado::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #1fbf7a; box-shadow: 0 0 0 3px rgba(31,191,122,0.15); }
.chat-cuerpo { flex: 1; display: flex; flex-direction: column; gap: 7px; padding: 10px 12px; overflow: hidden; }
.msg { max-width: 92%; padding: 7px 10px; border-radius: 12px; line-height: 1.4; opacity: 0; }
.msg-tu { align-self: flex-end; background: var(--grafito); color: #fff; border-bottom-right-radius: 4px; animation: m-tu var(--t) cubic-bezier(0.16,1,0.3,1) infinite; }
.msg-escribe { align-self: flex-start; display: flex; gap: 3px; padding: 9px 10px; background: var(--surface-2); border: 1px solid var(--border); animation: m-escribe var(--t) infinite; }
.msg-escribe i { width: 5px; height: 5px; border-radius: 50%; background: var(--ink-4); animation: punto 1s infinite; }
.msg-escribe i:nth-child(2) { animation-delay: .15s; } .msg-escribe i:nth-child(3) { animation-delay: .3s; }
.msg-ia { align-self: stretch; max-width: none; background: var(--surface-2); border: 1px solid var(--border); border-bottom-left-radius: 4px; animation: m-ia var(--t) cubic-bezier(0.16,1,0.3,1) infinite; }
.msg-ia p { margin: 0 0 6px; }
.msg-ia ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.msg-ia li {
  display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: center;
  padding: 5px 8px; border-radius: 7px; background: var(--surface); border: 1px solid var(--border);
  animation: m-li var(--t) cubic-bezier(0.16,1,0.3,1) infinite; animation-delay: calc(var(--d) * .25s);
}
.msg-ia li b { font-family: var(--font-mono); font-size: 10px; color: var(--nx-blue); font-weight: 600; }
.msg-ia li em { font-style: normal; font-size: 10px; color: var(--text-mute); }
@keyframes m-tu { 0%, 3% { opacity: 0; transform: translateY(8px); } 7%, 90% { opacity: 1; transform: none; } 97%, 100% { opacity: 0; } }
@keyframes m-escribe { 0%, 12% { opacity: 0; display: flex; } 15%, 30% { opacity: 1; } 32%, 100% { opacity: 0; display: none; } }
@keyframes m-ia { 0%, 32% { opacity: 0; transform: translateY(8px); } 36%, 90% { opacity: 1; transform: none; } 97%, 100% { opacity: 0; } }
@keyframes m-li { 0%, 38% { opacity: 0; transform: translateX(-8px); } 42%, 90% { opacity: 1; transform: none; } 97%, 100% { opacity: 0; } }
@keyframes punto { 0%, 100% { opacity: .3; } 50% { opacity: 1; } }
.chat-entrada { display: flex; align-items: center; gap: 2px; margin: 0 10px 10px; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--border); color: var(--ink-4); font-size: 11px; }
.chat-entrada i { width: 1px; height: 12px; background: var(--nx-blue); animation: caret 1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }

/* ---------- 03 · Aplicaciones a medida: una app real; el cursor aprueba una solicitud (7 s) ---------- */
.escena-app { --t: 7s; display: grid; place-items: center; }
.app {
  position: relative; width: 300px; height: 198px; display: grid; grid-template-columns: 44px 1fr; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 26px 50px -20px rgba(18,21,31,0.35), 0 2px 6px rgba(18,21,31,0.06);
  font-size: 10px;
}
.app-lado { display: flex; flex-direction: column; align-items: center; gap: 9px; padding: 12px 0; background: var(--grafito); }
.app-lado img { width: 20px; margin-bottom: 6px; }
.app-lado span { width: 16px; height: 16px; border-radius: 5px; background: rgba(255,255,255,0.08); }
.app-lado span.on { background: rgba(110,162,255,0.35); box-shadow: inset 0 0 0 1px rgba(110,162,255,0.6); }
.app-main { display: flex; flex-direction: column; gap: 8px; padding: 10px 12px; min-width: 0; }
.app-cabeza { display: flex; align-items: center; justify-content: space-between; }
.app-cabeza b { font-size: 12px; font-weight: 600; }
.app-boton { padding: 3px 8px; border-radius: var(--r-full); background: var(--grafito); color: #fff; font-size: 9.5px; font-weight: 500; }
.app-kpis { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 6px; }
.app-kpis > div { padding: 6px 8px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface-2); }
.app-kpis em { display: block; font-style: normal; font-size: 9px; color: var(--text-mute); }
.app-kpis b { font-family: var(--font-display); font-size: 15px; font-weight: 500; }
.app-barras { display: flex; align-items: flex-end; gap: 4px; }
.app-barras i { flex: 1; height: var(--h); border-radius: 3px 3px 1px 1px; background: linear-gradient(to top, #1c6dff, #6ea2ff); animation: barra var(--t) cubic-bezier(0.16,1,0.3,1) infinite; transform-origin: bottom; }
@keyframes barra { 0% { transform: scaleY(.2); } 12%, 100% { transform: none; } }
.app-filas { display: grid; gap: 4px; }
.af { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center; padding: 6px 8px; border-radius: 8px; border: 1px solid var(--border); }
.af-estado { position: relative; display: inline-grid; }
.af-estado, .af-estado em { padding: 2px 7px; border-radius: var(--r-full); font-style: normal; font-size: 9px; font-weight: 600; background: #fff4e0; color: #9a6200; }
.af-objetivo .af-estado { padding: 0; background: none; }
.af-estado em { grid-area: 1 / 1; }
.af-estado .ok { background: #e8f7f0; color: #0d7d57; opacity: 0; animation: ok var(--t) infinite; }
.af-estado .pend { animation: pend var(--t) infinite; }
@keyframes ok { 0%, 47% { opacity: 0; transform: scale(.8); } 50%, 88% { opacity: 1; transform: none; } 95%, 100% { opacity: 0; } }
@keyframes pend { 0%, 47% { opacity: 1; } 50%, 90% { opacity: 0; } 97%, 100% { opacity: 1; } }
.af-accion { padding: 2px 7px; border-radius: var(--r-full); border: 1px solid var(--border-2); font-size: 9px; font-weight: 500; }
.af-objetivo .af-accion { animation: pulsa var(--t) infinite; }
@keyframes pulsa { 0%, 44% { background: transparent; } 46%, 49% { background: rgba(28,109,255,0.15); border-color: #1c6dff; } 52%, 100% { background: transparent; } }
.af-objetivo { animation: fila-ok var(--t) infinite; }
@keyframes fila-ok { 0%, 48% { background: transparent; } 52%, 86% { background: rgba(18,151,106,0.05); } 95%, 100% { background: transparent; } }
.cursor {
  position: absolute; width: 18px; height: 18px; left: 0; top: 0;
  filter: drop-shadow(0 3px 4px rgba(0,0,0,0.25));
  animation: cursor var(--t) cubic-bezier(.45,0,.25,1) infinite;
}
@keyframes cursor {
  0% { transform: translate(250px, 210px); }
  18% { transform: translate(250px, 210px); }
  42% { transform: translate(262px, 168px); }
  45% { transform: translate(262px, 168px) scale(.82); }
  48% { transform: translate(262px, 168px) scale(1); }
  70% { transform: translate(262px, 168px); }
  100% { transform: translate(250px, 210px); }
}

/* ---------- 04 · Integraciones: hilos de luz hacia el centro («Animated Beam») ---------- */
.escena-red { position: relative; }
.red-hilos { position: absolute; inset: 0; width: 100%; height: 100%; }
.red-base { fill: none; stroke: rgba(18,21,31,0.10); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.red-haz {
  fill: none; stroke: url(#haz); stroke-width: 3; stroke-linecap: round; vector-effect: non-scaling-stroke;
  stroke-dasharray: 40 400; stroke-dashoffset: 40;
  animation: haz 2.8s cubic-bezier(.45,0,.55,1) infinite; animation-delay: var(--d);
}
@keyframes haz { to { stroke-dashoffset: -360; } }
.red-nodo {
  position: absolute; width: 46px; height: 46px; transform: translate(-50%, -50%);
  display: grid; place-items: center; border-radius: 13px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-mute);
  box-shadow: 0 10px 24px -10px rgba(18,21,31,0.3), 0 1px 0 #fff inset;
}
.red-nodo svg { width: 20px; height: 20px; }
.red-nodo em {
  position: absolute; top: calc(100% + 6px); left: 50%; transform: translateX(-50%);
  font-style: normal; font-size: 10.5px; white-space: nowrap; color: var(--text-mute);
}
.red-centro {
  position: absolute; left: 50%; top: 50%; width: 68px; height: 68px; transform: translate(-50%, -50%);
  display: grid; place-items: center; border-radius: 20px;
  background: linear-gradient(160deg, #22252f, var(--grafito));
  box-shadow: 0 18px 36px -12px rgba(28,109,255,0.6), inset 0 1px 0 rgba(255,255,255,0.12);
}
.red-centro img { width: 36px; position: relative; filter: drop-shadow(0 0 10px rgba(30,189,255,0.45)); }
.red-centro i {
  position: absolute; inset: 0; border-radius: inherit; border: 1px solid rgba(28,109,255,0.45);
  animation: onda 2.8s cubic-bezier(0.16,1,0.3,1) infinite;
}
.red-centro i + i { animation-delay: 1.4s; }
@keyframes onda { from { transform: scale(1); opacity: .9; } to { transform: scale(1.9); opacity: 0; border-radius: 50%; } }

/* ---------- 05 · Diagnóstico: el trabajo se atasca, se ve dónde, y se resuelve (9 s) ---------- */
.escena-mapa { --t: 9s; display: grid; place-items: center; padding: 0 18px; }
.mapa { width: 100%; max-width: 320px; }
.mapa-carril { position: relative; display: flex; justify-content: space-between; align-items: center; height: 56px; }
.mapa-linea { position: absolute; left: 10%; right: 10%; top: 50%; height: 1.5px; background: var(--border-2); z-index: 0; }
.mp {
  position: relative; z-index: 1; padding: 9px 11px; border-radius: 10px; white-space: nowrap;
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--sh-sm);
  font-size: 11.5px; font-weight: 500;
}
.mp-cuello { animation: cuello var(--t) infinite; }
@keyframes cuello {
  0%, 8% { border-color: var(--border); box-shadow: var(--sh-sm); }
  14%, 50% { border-color: rgba(214,138,0,0.6); box-shadow: 0 0 0 4px rgba(255,170,40,0.14), var(--sh-md); }
  58%, 90% { border-color: rgba(18,151,106,0.5); box-shadow: 0 0 0 4px rgba(18,151,106,0.1), var(--sh-md); }
  100% { border-color: var(--border); box-shadow: var(--sh-sm); }
}
.mp-etiqueta {
  position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translateX(-50%);
  padding: 3px 8px; border-radius: var(--r-full); white-space: nowrap;
  font-style: normal; font-size: 10px; font-weight: 600; color: #fff; opacity: 0;
}
.mp-mal { background: #b87400; animation: e-mal var(--t) infinite; }
.mp-bien { background: #12976a; animation: e-bien var(--t) infinite; }
@keyframes e-mal { 0%, 12% { opacity: 0; } 16%, 50% { opacity: 1; } 54%, 100% { opacity: 0; } }
@keyframes e-bien { 0%, 58% { opacity: 0; } 62%, 90% { opacity: 1; } 96%, 100% { opacity: 0; } }
/* La cola que se acumula delante de «Revisión» y se vacía al resolverlo. */
.cola {
  position: absolute; z-index: 2; top: calc(50% - 4px); left: calc(36% - var(--n) * 11px);
  width: 8px; height: 8px; border-radius: 50%; background: #d68a00; opacity: 0;
  animation: cola var(--t) cubic-bezier(0.16,1,0.3,1) infinite; animation-delay: calc(var(--n) * .45s);
}
@keyframes cola { 0%, 8% { opacity: 0; transform: scale(.4); } 12%, 50% { opacity: 1; transform: none; } 56%, 100% { opacity: 0; transform: translateX(40px) scale(.4); } }
/* Lo que fluye: antes se para en el atasco; después llega hasta el cierre. */
.paso {
  position: absolute; z-index: 2; top: calc(50% - 4px); left: 18%;
  width: 8px; height: 8px; border-radius: 50%; background: var(--nx-blue); opacity: 0;
  animation: paso var(--t) linear infinite; animation-delay: var(--d);
}
@keyframes paso {
  0% { opacity: 0; transform: translateX(0); }
  3% { opacity: 1; }
  12% { opacity: 1; transform: translateX(40px); }
  14%, 58% { opacity: 0; transform: translateX(40px); }
  60% { opacity: 1; transform: translateX(0); }
  84% { opacity: 1; transform: translateX(230px); }
  88%, 100% { opacity: 0; transform: translateX(240px); }
}
.mapa-nuevo { display: flex; justify-content: center; margin-top: 18px; }
.mp-auto {
  border-style: dashed; border-color: rgba(28,109,255,0.4); color: var(--nx-blue);
  animation: auto-nace var(--t) cubic-bezier(0.16,1,0.3,1) infinite;
}
.mp-auto::before {
  content: ""; position: absolute; left: 50%; bottom: 100%; width: 1.5px; height: 18px; background: rgba(28,109,255,0.4);
}
@keyframes auto-nace { 0%, 50% { opacity: 0; transform: translateY(-6px); } 56%, 90% { opacity: 1; transform: none; } 97%, 100% { opacity: 0; } }

/* Las tarjetas antiguas (Servicios) ya no se usan en la portada. */
/* ===== Servicios — feature cards ===== */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.feature {
  position: relative; padding: 32px;
  background: var(--surface); box-shadow: var(--sh-sm);
  border: 1px solid var(--border); border-radius: var(--r-xl);
  overflow: hidden; transition: transform .3s, border-color .3s;
}
.feature::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--g-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform .45s cubic-bezier(.2,.7,.2,1);
}
.feature:hover { transform: translateY(-4px); border-color: var(--border-2); }
.feature:hover::before { transform: scaleX(1); }
.icon-frame {
  width: 52px; height: 52px; border-radius: var(--r-md);
  background: var(--g-brand-soft); border: 1px solid var(--border-2);
  display: grid; place-items: center; margin-bottom: 20px;
  color: var(--nx-cyan);
}
.icon-frame svg { width: 24px; height: 24px; }
.feature h3 {
  font-family: var(--font-display); font-weight: 500;
  font-size: var(--fs-h3); letter-spacing: -0.0075em;
  margin: 0 0 10px;
}
.feature p { margin: 0; font-size: 15px; color: var(--text-mute); line-height: 1.6; }
.feature.accent .icon-frame {
  background: rgba(165,139,255,0.12); color: var(--accent);
  border-color: rgba(165,139,255,0.3);
}

/* ===== Cómo trabajamos (07/10): el tablero del taller =====
   Una pared clara con puntos; cuatro fichas en zigzag, cada una con su
   chincheta y su nota. El hilo (SVG que dibuja main.js entre chinchetas) se
   va trazando con --avance y «clava» cada ficha al llegar (.clavada). */
.tablero {
  position: relative; isolation: isolate;
  padding: 56px 40px 72px; border-radius: 32px;
  background:
    radial-gradient(circle, rgba(18,21,31,0.13) 1px, transparent 1.4px) center / 22px 22px,
    linear-gradient(180deg, #fbfbfd, #f1f3f8);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 0 #fff, var(--sh-md);
}
.tablero-hilos { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; overflow: visible; pointer-events: none; }
.tablero-hilos .guia { fill: none; stroke: rgba(18,21,31,0.16); stroke-width: 1.2; stroke-dasharray: 3 6; }
.tablero-hilos .hilo {
  fill: none; stroke: url(#hiloColor); stroke-width: 2; stroke-linecap: round;
  filter: drop-shadow(0 2px 2px rgba(18,21,31,0.18));
}
.tablero-fichas {
  position: relative; z-index: 1; list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; align-items: start;
}
.ficha-2 { margin-top: 120px; }
.ficha-3 { margin-top: 24px; }
.ficha-4 { margin-top: 150px; }
.ficha {
  position: relative; display: flex; flex-direction: column; gap: 10px;
  padding: 34px 22px 64px; border-radius: 6px;
  background: #fff; border: 1px solid rgba(18,21,31,0.06);
  box-shadow: 0 1px 1px rgba(18,21,31,0.06), 0 14px 28px -14px rgba(18,21,31,0.35);
  transform: rotate(calc(var(--r) * 2.2)) translateY(-14px);
  opacity: .55;
  transition: transform .9s cubic-bezier(0.34,1.4,0.5,1), opacity .5s, box-shadow .5s;
}
.ficha.clavada { transform: rotate(var(--r)); opacity: 1; box-shadow: 0 1px 1px rgba(18,21,31,0.06), 0 22px 36px -16px rgba(18,21,31,0.4); }
.ficha:hover { transform: rotate(0deg) translateY(-4px); }
.chincheta {
  position: absolute; left: 50%; top: -9px; width: 20px; height: 20px; margin-left: -10px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff 0 12%, var(--c) 40%, color-mix(in srgb, var(--c) 60%, #000) 100%);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.35), 0 0 0 1px rgba(0,0,0,0.08);
  transform: scale(.4); opacity: 0; transition: transform .5s cubic-bezier(0.34,1.8,0.5,1), opacity .3s;
}
.ficha.clavada .chincheta { transform: none; opacity: 1; }
.ficha-1 { --c: #1ebdff; } .ficha-2 { --c: #1c6dff; } .ficha-3 { --c: #4a2bd9; } .ficha-4 { --c: #8a52ff; }
.ficha-num { font-family: var(--font-mono); font-size: 12px; color: var(--ink-4); }
.ficha h3 { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: 23px; letter-spacing: -0.01em; }
.ficha p { margin: 0; font-size: 14.5px; line-height: 1.6; color: var(--text-mute); }
/* ---- El acabado del tablero (07/10, segunda pasada) ---- */

/* Papel: grano muy fino y la esquina de abajo a la izquierda, levantada. */
.ficha::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: .35; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.55 0 0 0 0 0.55 0 0 0 0 0.6 0 0 0 0.18 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
}
.ficha::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 28px;
  background: linear-gradient(45deg, #eef0f5 0 48%, #e3e6ee 50%, #fff 78%);
  border-top-right-radius: 4px;
  box-shadow: 2px -2px 4px rgba(18,21,31,0.12);
}

/* Inclinación hacia el cursor, colgada de la chincheta (main.js pone --tx/--ty). */
.ficha { transform-origin: 50% 0; }
.ficha.clavada { transform: rotate(var(--r)) perspective(900px) rotateX(var(--ty, 0deg)) rotateY(var(--tx, 0deg)); }
.ficha.clavada:hover { transition: transform .15s ease-out, box-shadow .3s; box-shadow: 0 1px 1px rgba(18,21,31,0.06), 0 30px 44px -18px rgba(18,21,31,0.45); }
.ficha:hover { transform: rotate(var(--r)) perspective(900px) rotateX(var(--ty, 0deg)) rotateY(var(--tx, 0deg)); }

/* La sombra de la chincheta sobre el papel. */
.chincheta::after {
  content: ""; position: absolute; left: 9px; top: 12px; width: 16px; height: 8px; border-radius: 50%;
  background: rgba(18,21,31,0.28); filter: blur(2.5px); z-index: -1;
}

/* Los recortes: cosas de verdad clavadas en cada ficha. */
.recorte {
  position: relative; margin: 8px -4px 4px; padding: 10px 12px;
  background: #fff; border: 1px solid rgba(18,21,31,0.08); border-radius: 3px;
  box-shadow: 0 6px 12px -8px rgba(18,21,31,0.35);
  transform: rotate(calc(var(--r) * -1.4));
}
.recorte svg { display: block; width: 100%; height: auto; overflow: visible; }
/* 01: rotulador azul y el círculo ámbar del atasco, que se dibujan al clavar. */
.recorte-boceto { background: #fdfcf7; }
.recorte-boceto .trazo path { fill: none; stroke: #1d3f9e; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.texto-boceto text { font-family: "Caveat", cursive; font-size: 15px; fill: #1d3f9e; text-anchor: middle; }
.trazo-circulo { fill: none; stroke: #d68a00; stroke-width: 2.6; stroke-linecap: round; stroke-dasharray: 230; stroke-dashoffset: 230; transition: stroke-dashoffset 1s .5s cubic-bezier(.45,0,.25,1); }
.ficha.clavada .trazo-circulo { stroke-dashoffset: 0; }
/* 02: boceto a lápiz con dos piezas ya en color. */
.recorte-pantalla { background: #fbfbfd; }
.trazo-lapiz path { fill: none; stroke: #8b93a5; stroke-width: 1.4; stroke-linecap: round; stroke-dasharray: 600; stroke-dashoffset: 600; transition: stroke-dashoffset 1.6s .2s ease-out; }
.ficha.clavada .trazo-lapiz path { stroke-dashoffset: 0; }
.pieza-color { fill: rgba(28,109,255,0.22); stroke: #1c6dff; stroke-width: 1.2; opacity: 0; transition: opacity .6s 1.2s; }
.pieza-color-2 { fill: rgba(18,21,31,0.85); stroke: none; }
.ficha.clavada .pieza-color { opacity: 1; }
/* 03 y 04: listas impresas. */
.recorte b { display: block; margin-bottom: 6px; font-size: 11px; font-weight: 600; letter-spacing: .02em; }
.recorte ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; font-size: 11.5px; color: var(--text-mute); }
.recorte-lista li { display: flex; align-items: center; gap: 7px; }
.recorte-lista li i {
  width: 14px; height: 14px; flex-shrink: 0; border: 1.4px solid #8b93a5; border-radius: 3px; display: grid; place-items: center;
}
.recorte-lista li i svg { width: 12px; }
.recorte-lista li i path { fill: none; stroke: #1d3f9e; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 20; stroke-dashoffset: 20; transition: stroke-dashoffset .4s cubic-bezier(.45,0,.25,1); }
.ficha.clavada .recorte-lista li:nth-child(1) path { stroke-dashoffset: 0; transition-delay: .5s; }
.ficha.clavada .recorte-lista li:nth-child(2) path { stroke-dashoffset: 0; transition-delay: .75s; }
.ficha.clavada .recorte-lista li:nth-child(3) path { stroke-dashoffset: 0; transition-delay: 1s; }
.recorte-lista li.hecho { color: var(--text); }
.recorte-registro li { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: center; }
.recorte-registro li span { font-family: var(--font-mono); font-size: 10px; color: #1d3f9e; }
.recorte-registro li em { font-style: normal; color: var(--success); font-weight: 600; }

/* Anotaciones a mano, en rotulador azul. */
.anotacion {
  position: absolute; z-index: 3; white-space: nowrap; pointer-events: none;
  font-family: "Caveat", cursive; font-weight: 600; font-size: 22px; line-height: 1; color: #1c5be0;
  opacity: 0; transition: opacity .6s 1.3s;
}
.anotacion svg { position: absolute; width: 52px; height: 36px; overflow: visible; }
.anotacion path { fill: none; stroke: #1c5be0; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
/* Escrita sobre la hoja del boceto, encima del paso rodeado. */
.anotacion-1 { right: 4px; top: -20px; font-size: 20px; transform: rotate(-5deg); }
.anotacion-1 svg { left: -30px; top: 12px; width: 34px; height: 26px; transform: scaleX(-1) rotate(20deg); }
.anotacion-3 { right: calc(100% - 14px); top: -46px; transform: rotate(5deg); }
.anotacion-3 svg { right: -50px; top: 10px; }
.ficha.clavada .anotacion { opacity: 1; }

/* La nota pegada con su cinta, que sobresale por abajo. */
.nota {
  position: absolute; right: -14px; bottom: -26px; width: 72%;
  display: flex; flex-direction: column; gap: 2px;
  padding: 12px 14px 12px; border-radius: 2px;
  background: linear-gradient(180deg, #eaf2ff, #dfeaff);
  box-shadow: 0 10px 18px -10px rgba(28,60,140,0.45);
  font-size: 12.5px; line-height: 1.35; color: #18306b;
  transform: rotate(var(--rn));
}
.nota::before {
  /* La cinta. */
  content: ""; position: absolute; left: 50%; top: -9px; width: 54px; height: 18px; margin-left: -27px;
  background: rgba(255,255,255,0.55); box-shadow: 0 1px 2px rgba(18,21,31,0.08);
  transform: rotate(-4deg); backdrop-filter: blur(1px);
  clip-path: polygon(0 10%, 4% 0, 8% 12%, 12% 0, 88% 0, 92% 12%, 96% 0, 100% 10%, 100% 90%, 96% 100%, 92% 88%, 88% 100%, 12% 100%, 8% 88%, 4% 100%, 0 90%);
}
.nota em { font-style: normal; font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: #3a5bb0; }

/* ===== Lo que aprendemos (07/10): destacado + índice editorial ===== */
.recursos { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 20px; align-items: stretch; }
.destacado {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  border-radius: 24px; background: var(--grafito); color: var(--grafito-claro);
  box-shadow: var(--sh-lg); transition: transform .35s cubic-bezier(0.16,1,0.3,1), box-shadow .35s;
}
.destacado:hover { transform: translateY(-3px); box-shadow: var(--sh-2xl); }
.destacado-portada { display: block; overflow: hidden; }
.destacado-entradilla { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin: 2px 0 4px; font-size: 15px; line-height: 1.6; color: var(--grafito-texto); max-width: 56ch; }
.destacado-texto { display: flex; flex-direction: column; gap: 10px; padding: 26px 30px 30px; border-top: 1px solid var(--grafito-borde); }
.destacado-texto h3 {
  margin: 0; font-family: var(--font-display); font-weight: 500;
  font-size: clamp(22px, 2.2vw, 28px); line-height: 1.15; letter-spacing: -0.01em; color: #fff; text-wrap: balance;
}
.destacado .indice-cat { color: #6ea2ff; }
.destacado .indice-meta { color: #7d8494; }
.destacado-ir { margin-top: 6px; font-size: 14px; font-weight: 500; }
.destacado-ir::after { content: " →"; display: inline-block; transition: transform .25s cubic-bezier(0.16,1,0.3,1); }
.destacado:hover .destacado-ir::after { transform: translateX(3px); }

.indice {
  display: flex; flex-direction: column; border-radius: 24px; padding: 10px 10px 18px;
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--sh-sm);
}
.indice-lista { list-style: none; margin: 0; padding: 0; counter-reset: art; }
.indice-lista li + li { border-top: 1px solid var(--border); }
.indice-fila {
  position: relative; display: grid; grid-template-columns: 44px 1fr auto; gap: 8px 16px;
  padding: 22px 20px; border-radius: 16px; transition: background-color .25s;
}
.indice-fila:hover { background: var(--surface-2); }
.indice-cat { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--nx-blue); }
.indice-num {
  grid-row: 1 / 4; font-family: var(--font-display); font-weight: 500;
  font-size: 22px; line-height: 1; color: var(--ink-3); padding-top: 2px; transition: color .25s;
}
.indice-fila:hover .indice-num { color: var(--nx-blue); }
.indice-cat, .indice-titulo, .indice-meta { grid-column: 2; }
.indice-titulo { font-family: var(--font-display); font-weight: 500;
  font-size: 19px; line-height: 1.25; letter-spacing: -0.0075em; color: var(--text); text-wrap: balance;
}
.indice-meta { font-size: 13px; color: var(--text-mute); }
.indice-flecha {
  grid-column: 3; grid-row: 1 / 4; align-self: center;
  width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%;
  border: 1px solid var(--border); color: var(--text-mute);
  transition: background-color .25s, color .25s, border-color .25s, transform .35s cubic-bezier(0.16,1,0.3,1);
}
.indice-flecha svg { width: 16px; height: 16px; }
.indice-fila:hover .indice-flecha { background: var(--grafito); border-color: var(--grafito); color: #fff; transform: rotate(45deg); }
/* La miniatura que sigue al cursor («hover reveal»): fuera del índice, por
   la izquierda (sobre el destacado), a la altura del cursor y con un leve
   giro según hacia dónde se mueve. Nunca tapa el título que se está leyendo. */
.indice { overflow: visible; position: relative; z-index: 2; }
.indice-miniatura {
  position: absolute; z-index: 5; left: 0; top: 0; width: 240px; pointer-events: none;
  border-radius: 14px; overflow: hidden; box-shadow: 0 0 0 1px rgba(255,255,255,0.14), 0 30px 60px -20px rgba(18,21,31,0.6);
  opacity: 0; transform: translate(calc(-100% - 28px + var(--dx, 0px)), calc(var(--my, 0px) - 50%)) rotate(var(--giro, 0deg)) scale(.8);
  transition: opacity .25s, transform .45s cubic-bezier(0.16,1,0.3,1);
}
.indice-miniatura .portada { width: 100%; }
.indice-fila:hover .indice-miniatura { opacity: 1; transform: translate(calc(-100% - 28px + var(--dx, 0px)), calc(var(--my, 0px) - 50%)) rotate(var(--giro, 0deg)) scale(1); }
.indice-todos { margin: auto 20px 0; padding-top: 18px; font-size: 14px; font-weight: 500; color: var(--text); }
.indice-todos::after { content: " →"; display: inline-block; transition: transform .25s cubic-bezier(0.16,1,0.3,1); }
.indice-todos:hover::after { transform: translateX(3px); }

/* ===== Preguntas (07/10) =====
   Dos columnas: a la izquierda, fijo, el título y una tarjeta para escribir;
   a la derecha, las preguntas por temas. Abren suave (interpolate-size donde
   el navegador lo tenga; en los demás, de golpe) y la respuesta es un
   mensaje firmado por NX. */
:root { interpolate-size: allow-keywords; }
.preguntas { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; align-items: start; }
.preguntas-lado { position: sticky; top: 110px; display: flex; flex-direction: column; gap: 20px; }
.preguntas-lado .bloque-desc { max-width: 34ch; }
.enlace-subrayado {
  font-weight: 500; color: var(--text);
  text-decoration: underline; text-decoration-color: var(--border-2); text-decoration-thickness: 1.5px; text-underline-offset: 4px;
  transition: text-decoration-color .2s;
}
.enlace-subrayado:hover { text-decoration-color: var(--nx-blue); }
.respuesta-firma {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; flex-shrink: 0;
  background: #1d2030; border: 1px solid var(--grafito-borde);
}
.respuesta-firma img { width: 20px; }
.preguntas-lista { display: flex; flex-direction: column; gap: 40px; }
/* Cada grupo es una <section>: sin el relleno grande de las secciones de la página. */
.preguntas-grupo { padding: 0; }
.preguntas-grupo-titulo {
  display: flex; align-items: center; gap: 12px; margin: 0 0 6px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--text-mute);
}
.preguntas-grupo-titulo::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.pregunta { border-bottom: 1px solid var(--border); }
.pregunta summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 22px 2px; font-family: var(--font-display); font-weight: 500; font-size: 19px; letter-spacing: -0.005em;
  transition: color .2s;
}
.pregunta summary::-webkit-details-marker { display: none; }
.pregunta summary:hover { color: var(--nx-blue); }
.pregunta summary:focus-visible { outline: 2px solid var(--nx-blue); outline-offset: 4px; border-radius: 6px; }
.pregunta-mas {
  display: grid; place-items: center; width: 30px; height: 30px; flex-shrink: 0; border-radius: 50%;
  border: 1px solid var(--border-2); color: var(--text-mute);
  transition: transform .35s cubic-bezier(0.16,1,0.3,1), background-color .25s, color .25s, border-color .25s;
}
.pregunta-mas svg { width: 12px; height: 12px; }
.pregunta[open] .pregunta-mas { transform: rotate(45deg); background: var(--grafito); border-color: var(--grafito); color: #fff; }
.pregunta::details-content { block-size: 0; overflow: hidden; transition: block-size .45s cubic-bezier(0.16,1,0.3,1), content-visibility .45s allow-discrete; }
.pregunta[open]::details-content { block-size: auto; }
.respuesta { display: flex; gap: 14px; align-items: flex-start; padding: 6px 2px 26px; }
.respuesta p {
  margin: 0; padding: 14px 18px; border-radius: 4px 18px 18px 18px; max-width: 60ch;
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--sh-sm);
  font-size: 15.5px; line-height: 1.6; color: var(--text-mute);
}
.respuesta-firma { background: var(--grafito); }


.pregunta summary > span { flex: 1; }

/* Al abrir, el asistente «escribe» un instante y luego llega la respuesta. */
.respuesta { position: relative; }
.respuesta-escribe {
  position: absolute; left: 50px; top: 6px; display: flex; gap: 4px; padding: 14px 16px;
  border-radius: 4px 16px 16px 16px; background: var(--surface); border: 1px solid var(--border);
  opacity: 0; pointer-events: none;
}
.respuesta-escribe i { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-4); animation: punto 1s infinite; }
.respuesta-escribe i:nth-child(2) { animation-delay: .15s; } .respuesta-escribe i:nth-child(3) { animation-delay: .3s; }
.pregunta[open] .respuesta-escribe { animation: escribe-faq .7s steps(1) both; }
.pregunta[open] .respuesta p { animation: llega-faq .5s .55s cubic-bezier(0.16,1,0.3,1) both; }
@keyframes escribe-faq { 0% { opacity: 1; } 100% { opacity: 0; } }
@keyframes llega-faq { from { opacity: 0; transform: translateY(6px) scale(.98); transform-origin: left top; } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .pregunta[open] .respuesta-escribe { animation: none; }
  .pregunta[open] .respuesta p { animation: none; }
}

/* ===== Contacto (07/10): el cierre, como en NX Build =====
   Bloque grafito con grano y luz; a la izquierda la pregunta y los tres
   pasos de después; a la derecha, el formulario en una tarjeta blanca.
   Las clases del formulario (.form, .input, .form-error, .form-success…)
   son las que usa main.js: no cambiarlas. */
.cierre {
  position: relative; isolation: isolate; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 56px; align-items: start;
  padding: 72px 64px; border-radius: 32px;
  background: var(--grafito); color: var(--grafito-claro); box-shadow: var(--sh-2xl);
}
.cierre::before {
  content: ""; position: absolute; z-index: -1; left: -12%; bottom: -45%; width: 60%; height: 100%;
  background: radial-gradient(closest-side, rgba(28,109,255,0.3), transparent);
}
.cierre::after {
  /* Puntos finos que se desvanecen hacia arriba. */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .06;
  background: radial-gradient(#fff 1px, transparent 1.2px) 0 0 / 20px 20px;
  -webkit-mask-image: linear-gradient(to top, #000, transparent 70%); mask-image: linear-gradient(to top, #000, transparent 70%);
}
/* El grano del grafito (capa suelta, fuera de la cuadrícula). */
.placa-oscura-grano {
  position: absolute; inset: 0; z-index: -1; opacity: .12; mix-blend-mode: overlay; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
}
.cierre-titulo {
  margin: 0; font-family: var(--font-display); font-weight: 500;
  font-size: clamp(34px, 4.2vw, 54px); line-height: 1.02; letter-spacing: -0.012em; color: #fff; text-wrap: balance;
}
.cierre-desc { margin: 20px 0 0; font-size: 17.5px; line-height: 1.6; color: var(--grafito-texto); max-width: 40ch; }
.cierre-pasos { list-style: none; margin: 40px 0 0; padding: 0; display: flex; flex-direction: column; }
.cierre-pasos li { position: relative; display: grid; grid-template-columns: 36px 1fr; gap: 14px; padding-bottom: 26px; }
.cierre-pasos li:last-child { padding-bottom: 0; }
.cierre-pasos li:not(:last-child)::before {
  /* La línea que une los pasos. */
  content: ""; position: absolute; left: 17px; top: 38px; bottom: 4px; width: 1px; background: rgba(255,255,255,0.14);
}
.cierre-num {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.05);
  font-size: 13px; font-weight: 600; color: #6ea2ff; font-variant-numeric: tabular-nums;
}
.cierre-pasos li > span:last-child { padding-top: 6px; font-size: 14.5px; line-height: 1.55; color: var(--grafito-texto); }
.cierre-pasos b { display: block; margin-bottom: 2px; font-size: 16.5px; font-weight: 600; color: #fff; }

/* La luz que sigue al ratón dentro del bloque (main.js pone --lx/--ly). */
.cierre-luz {
  position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: 0; transition: opacity .5s;
  background: radial-gradient(420px circle at var(--lx, 50%) var(--ly, 50%), rgba(110,162,255,0.14), transparent 60%);
}
.cierre:hover .cierre-luz { opacity: 1; }

/* Los pasos entran en cascada y la línea se dibuja. */
.cierre-pasos li { opacity: 0; transform: translateY(10px); transition: opacity .6s, transform .7s cubic-bezier(0.16,1,0.3,1); }
.cierre-pasos li:not(:last-child)::before { transform: scaleY(0); transform-origin: top; transition: transform .8s cubic-bezier(0.16,1,0.3,1); }
.cierre-texto.visible .cierre-pasos li { opacity: 1; transform: none; }
.cierre-texto.visible .cierre-pasos li::before { transform: scaleY(1); }
.cierre-texto.visible .cierre-pasos li:nth-child(1) { transition-delay: .25s; }
.cierre-texto.visible .cierre-pasos li:nth-child(2) { transition-delay: .45s; }
.cierre-texto.visible .cierre-pasos li:nth-child(3) { transition-delay: .65s; }
.cierre-texto.visible .cierre-pasos li:nth-child(1)::before { transition-delay: .5s; }
.cierre-texto.visible .cierre-pasos li:nth-child(2)::before { transition-delay: .7s; }

/* El correo directo. */
.cierre-correo {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px;
  margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--grafito-borde); font-size: 14.5px; color: var(--grafito-texto);
}
.cierre-correo a { color: #fff; font-weight: 500; text-decoration: underline; text-decoration-color: rgba(255,255,255,0.3); text-underline-offset: 4px; }
.cierre-correo a:hover { text-decoration-color: #6ea2ff; }
.copiar-correo {
  position: relative; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; cursor: pointer;
  background: rgba(255,255,255,0.06); border: 1px solid var(--grafito-borde); color: var(--grafito-texto);
  transition: color .2s, background-color .2s;
}
.copiar-correo:hover { color: #fff; background: rgba(255,255,255,0.1); }
.copiar-correo svg { width: 14px; height: 14px; }
.copiar-correo span {
  position: absolute; left: 50%; bottom: calc(100% + 8px); transform: translate(-50%, 4px);
  padding: 4px 8px; border-radius: 6px; background: #fff; color: var(--text); font-size: 12px; font-weight: 600; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .25s;
}
.copiar-correo.copiado span { opacity: 1; transform: translate(-50%, 0); }
.copiar-correo.copiado { color: #4ee0a8; }

/* Los temas: píldoras que se marcan, encima del mensaje. */
.temas { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 2px 0 10px; }
.temas-titulo { width: 100%; margin-bottom: 2px; font-size: 12.5px; color: var(--text-mute); }
.temas-titulo em { font-style: normal; color: var(--ink-4); }
.tema {
  padding: 7px 12px; border-radius: var(--r-full); cursor: pointer;
  background: var(--surface); border: 1px solid var(--border-2); color: var(--text-mute);
  font: 500 13px/1 var(--font-body); transition: background-color .2s, color .2s, border-color .2s, transform .15s;
}
.tema:hover { color: var(--text); border-color: var(--ink-4); }
.tema:active { transform: scale(.96); }
.tema[aria-pressed="true"] { background: rgba(28,109,255,0.1); border-color: rgba(28,109,255,0.45); color: var(--nx-blue); }
.tema[aria-pressed="true"]::before { content: "✓ "; }

/* El botón mientras se envía: un círculo girando. */
.btn-submit.enviando { pointer-events: none; }
.btn-submit.enviando::after { content: none; }
.btn-girando { width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; animation: gira .7s linear infinite; }
@keyframes gira { to { transform: rotate(360deg); } }

.form-wrap {
  position: relative; padding: 32px; border-radius: 24px;
  background: var(--surface); color: var(--text);
  box-shadow: 0 30px 60px -24px rgba(0,0,0,0.55);
}
.form { display: flex; flex-direction: column; gap: 18px; }
.form label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 500; color: var(--text); }
.input, .textarea {
  width: 100%; min-height: 48px; padding: 12px 16px;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 14px;
  font-family: var(--font-body); font-size: 15.5px;
  transition: border-color .2s, box-shadow .2s, background-color .2s;
}
.input:hover, .textarea:hover { border-color: var(--border-2); }
.input::placeholder, .textarea::placeholder { color: var(--ink-4); }
.input:focus, .textarea:focus {
  outline: none; background: var(--surface); border-color: var(--nx-blue);
  box-shadow: 0 0 0 4px rgba(28,109,255,0.14);
}
.textarea { resize: vertical; min-height: 128px; line-height: 1.5; }
.form-honeypot { position: absolute !important; left: -9999px; top: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-error { color: var(--danger); font-size: 13.5px; margin: 0; min-height: 0; line-height: 1.4; opacity: 0; transition: opacity .2s; }
.form-error.is-visible { opacity: 1; min-height: 18px; }
.btn-submit { justify-content: center; width: 100%; }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.form-nota { margin: -4px 0 0; text-align: center; font-size: 12.5px; color: var(--text-mute); }
.form-nota a { color: var(--text); text-decoration: underline; text-decoration-color: var(--border-2); text-underline-offset: 3px; }
.form-success { display: none; text-align: center; padding: 28px 8px; }
.form-success.is-visible { display: block; animation: llega-faq .5s cubic-bezier(0.16,1,0.3,1) both; }
.form-ok {
  display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 50%;
  background: rgba(18,151,106,0.1); color: var(--success); box-shadow: 0 0 0 8px rgba(18,151,106,0.06);
}
.form-ok svg { width: 26px; height: 26px; }
.form-success h3 { margin: 0 0 8px; font-family: var(--font-display); font-weight: 500; font-size: 24px; color: var(--text); }
.form-success p { margin: 0 0 24px; color: var(--text-mute); }

/* ===== El pie (07/10), como el de NX Build ===== */
.pie { overflow: hidden; margin-top: 40px; }
.pie-arriba {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); gap: 40px;
  padding: 56px 0; border-top: 1px solid var(--border);
}
.pie-marca { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.pie-logo { height: 24px; width: auto; }
.pie-marca p { margin: 0; max-width: 34ch; font-size: 14.5px; line-height: 1.6; color: var(--text-mute); }
.pie-correo { font-size: 14.5px; font-weight: 500; color: var(--text); text-decoration: underline; text-decoration-color: var(--border-2); text-underline-offset: 4px; transition: text-decoration-color .2s; }
.pie-correo:hover { text-decoration-color: var(--nx-blue); }
.pie-titulo { margin: 0; font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-4); }
.pie ul { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14.5px; }
.pie ul a { color: var(--text-mute); transition: color .2s; }
.pie ul a:hover { color: var(--text); }
.pie ul span { color: var(--ink-4); }
.pie ul em { font-style: normal; margin-left: 6px; padding: 2px 7px; border-radius: var(--r-full); background: var(--surface-2); border: 1px solid var(--border); font-size: 11px; color: var(--text-mute); }
/* El logo a todo el ancho, tenue y cortado por abajo. Encima, el mismo logo
   relleno con el degradado de la marca, que aparece con --fin (0 → 1) en
   los últimos centímetros de bajada. */
.pie-remate { --fin: 0; margin-bottom: -3%; user-select: none; }
.pie-remate-caja {
  position: relative;
  -webkit-mask-image: linear-gradient(to bottom, #000 35%, transparent); mask-image: linear-gradient(to bottom, #000 35%, transparent);
}
.pie-remate-logo { display: block; width: 100%; height: auto; filter: grayscale(1); opacity: calc(.07 * (1 - var(--fin))); }
.pie-remate-color {
  position: absolute; inset: 0; opacity: calc(var(--fin) * .3);
  background: linear-gradient(100deg, #1ebdff 0%, #1c6dff 45%, #8a52ff 100%);
  -webkit-mask: url("images/marca/nxhumans-logo-color.png") center / 100% 100% no-repeat;
          mask: url("images/marca/nxhumans-logo-color.png") center / 100% 100% no-repeat;
}
.pie-abajo { position: relative; border-top: 1px solid var(--border); background: var(--bg); }
.pie-abajo-dentro { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 32px; padding-top: 22px; padding-bottom: 22px; font-size: 12.5px; color: var(--ink-4); }
.pie-legal { margin: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; }
.pie-legal a { color: var(--ink-4); transition: color .2s; }
.pie-legal a:hover { color: var(--text); }
.pie-nota { margin: 0; }

/* ===== Páginas legales (aviso-legal · privacidad · cookies) ===== */
.nav-logo { display: inline-flex; align-items: center; }
.logo-text {
  font-family: var(--font-display); font-weight: 500;
  font-size: 18px; letter-spacing: -0.005em; color: var(--text);
}
.logo-nx {
  background: var(--g-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.logo-humans { color: var(--text); }

.legal-shell { padding: 120px 0 96px; } /* la barra flota encima */
.legal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 48px;
  max-width: 880px;
  margin: 0 auto;
  position: relative;
}
.legal-card .section-label { margin-bottom: 16px; }
.legal-card .section-label::before,
.legal-card .section-label::after { display: none; }
.legal-card h1 {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.08; letter-spacing: -0.0125em;
  margin: 8px 0 24px;
}
.legal-card h2 {
  font-family: var(--font-display); font-weight: 500;
  font-size: 22px; letter-spacing: -0.0075em;
  margin: 36px 0 14px; color: var(--text);
}
.legal-card h3 {
  font-family: var(--font-display); font-weight: 500;
  font-size: 18px; margin: 24px 0 10px; color: var(--text);
}
.legal-card p {
  color: var(--text-mute);
  font-size: 16px; line-height: 1.65;
  margin: 0 0 14px;
}
.legal-card ul {
  margin: 0 0 14px; padding-left: 20px;
  color: var(--text-mute);
}
.legal-card li { margin-bottom: 10px; line-height: 1.6; }
.legal-card strong { color: var(--text); }
.legal-card a:not(.btn) {
  color: var(--nx-cyan);
  border-bottom: 1px dashed rgba(30,189,255,0.4);
}
.legal-card a:not(.btn):hover { border-bottom-style: solid; }
.legal-card code {
  font-family: var(--font-mono); font-size: 13px;
  padding: 2px 6px; border-radius: var(--r-xs);
  background: var(--velo-2);
  border: 1px solid var(--border-2); color: var(--text);
}
.legal-card > p:last-of-type + .btn,
.legal-card > .btn { margin-top: 16px; }
.legal-card p .btn { margin-right: 8px; margin-bottom: 8px; }

/* Outline button variant (usado en legales y nav legal) */
.btn-outline {
  background: transparent;
  border-color: var(--border-2);
  color: var(--text);
}
.btn-outline:hover {
  background: var(--velo);
  border-color: var(--ink-4);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .container { padding: 0 24px; }
  .bloque-cabeza { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  .recursos { grid-template-columns: 1fr; }
  .preguntas { grid-template-columns: 1fr; gap: 36px; }
  /* El captcha mide 300 px fijos: en el móvil el bloque gana unos píxeles
     a los lados para que quepa dentro de la tarjeta. */
  .pie-arriba { grid-template-columns: 1fr 1fr; padding: 44px 0; }
  .pie-marca { grid-column: 1 / -1; }
  .cierre { grid-template-columns: minmax(0, 1fr); gap: 36px; margin-inline: -10px; padding: 44px 10px 10px; border-radius: 24px; }
  .cierre-texto { padding: 0 12px; }
  .form-wrap { padding: 18px 14px; border-radius: 18px; }
  .preguntas-lado { position: static; }
  .pregunta summary { font-size: 17px; padding: 18px 2px; }
  .indice-miniatura { display: none; }
  .indice-fila { padding: 18px 12px; }
  .tablero { padding: 40px 20px 56px; border-radius: 24px; }
  .tablero-hilos { display: none; } /* en columna, el hilo cruzaría las fichas */
  .anotacion { display: none; }
  .tablero-fichas { grid-template-columns: minmax(0, 1fr); gap: 56px; padding: 0 6px; max-width: 460px; margin: 0 auto; }
  .ficha-2, .ficha-3, .ficha-4 { margin-top: 0; }
  .ficha-2, .ficha-4 { margin-left: 18px; }
  .ficha-1, .ficha-3 { margin-right: 18px; }
  .bento-tarjeta, .bento-ancha, .bento-tarjeta:nth-child(2) { grid-column: auto; }
  .factura { left: 4%; transform: rotate(-3deg) scale(.86); transform-origin: left top; }
  .registro { right: -30%; top: 96px; transform: scale(.8); transform-origin: left top; }
  .auto-caminos, .viajero { display: none; }
  section { padding: 72px 0; }
  .form-wrap { padding: 24px; }

  .nav-links { display: none; }
  .menu-productos { display: none; }
  .hamburger { display: inline-flex; }
  .nav-right .btn { display: none; }
  #nav { top: 12px; padding: 0 12px; }
  #nav .nav-inner { padding-left: 16px; }

  #hero { padding: 120px 0 48px; }
  .hero-cabeza { grid-template-columns: 1fr; row-gap: 24px; }
  .hero-lado .hero-ctas { justify-content: flex-start; }
  .puertas { flex-direction: column; height: auto; margin-top: 44px; }
  .puerta, .puerta.activa { flex: none; min-height: 420px; cursor: default; }
  .puerta .puerta-mas { grid-template-rows: 1fr; opacity: 1; }
  .puerta-texto { padding: 22px; }
  .puerta-imagen-medida { padding-top: 14px; }
  .orbita { zoom: 0.78; }
  .puerta-imagen-pronto { padding-top: 28px; gap: 12px; }
  .pronto-pieza { width: 230px; padding: 16px 20px; transform: none; }
  .puerta-imagen-producto img { width: 640px; left: 22px; top: 28px; }
}
@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .hero-h1 { font-size: clamp(28px, 8.6vw, 44px); margin-bottom: 0; }
  .hero-sub { font-size: 17px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { justify-content: center; }
  
  /* Legales en móvil */
  .legal-shell { padding: 96px 0 64px; }
  .legal-card { padding: 28px 22px; border-radius: var(--r-lg); }
  .legal-card h1 { margin: 4px 0 16px; }
  .legal-card h2 { margin: 28px 0 12px; font-size: 19px; }

  /* Servicios: en móvil mostrar solo título + icono, ocultar descripción */
  #servicios .feature { padding: 22px 24px; }
  #servicios .feature p { display: none; }
  #servicios .feature h3 { font-size: 18px; margin: 0; }
  #servicios .icon-frame { width: 44px; height: 44px; margin-bottom: 14px; }
  #servicios .icon-frame svg { width: 20px; height: 20px; }
  #servicios .grid { gap: 12px; }
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  .entra, .hero-h1 .linea > span, #nav .nav-inner, .orbita-giro, .satelite-ficha, .orbita-centro::before, .escena *, .ficha, .chincheta {
    animation: none !important;
  }
  .fade-in { transition: none; opacity: 1; transform: none; }
  .cierre-pasos li, .cierre-pasos li::before { opacity: 1 !important; transform: none !important; transition: none !important; }
  /* Las escenas, quietas y completas. */
  .msg, .msg-ia li, .rt-nueva, .factura-sello, .e-bien, .mp-bien, .mp-auto, .af-estado .ok { opacity: 1 !important; }
  .msg-escribe, .factura-lector, .viajero, .cola, .paso, .mp-mal, .af-estado .pend, .cursor { display: none; }
  html { scroll-behavior: auto; }
}