/* MantoIA · página de entrada. Gramática: galería de activos (ver docs/entrada/BRIEF.md).
   Un acento (naranja de seguridad); la tarjeta de inspección es la firma y el acceso. */
:root {
  --fondo: #0b1526;          /* azul noche corporativo */
  --superficie: #112038;
  --tinta: #f3f6fb;
  --tinta-suave: #a9b6c9;
  --acento: #2f6fdb;         /* azul AGP (del logo) */
  --sobre-acento: #ffffff;
  --kraft: #f4f6fa;          /* la tarjeta: papel blanco */
  --kraft-tinta: #0f1a2b;
  --kraft-suave: #5a6b84;
  --sans: "Archivo", system-ui, sans-serif;
  --narrow: "Archivo Narrow", "Archivo", system-ui, sans-serif;
  --suave: cubic-bezier(0.23, 1, 0.32, 1);
  --gutter: clamp(16px, 4vw, 56px);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--fondo); scroll-behavior: smooth; }
body { margin: 0; background: var(--fondo); color: var(--tinta); font: 400 16px/1.6 var(--sans); overflow-x: clip; -webkit-font-smoothing: antialiased; }
img { display: block; }
h1, h2 { margin: 0; font-weight: 700; letter-spacing: -0.03em; line-height: 1; text-wrap: balance; font-variation-settings: "wdth" 92; }
p { text-wrap: pretty; }
a { color: inherit; }
:focus-visible { outline: 2px solid #9dc1ff; outline-offset: 3px; }
.saltar { position: fixed; left: 16px; top: -60px; z-index: 80; background: var(--kraft); color: var(--kraft-tinta); padding: 10px 14px; border-radius: 6px; text-decoration: none; font-weight: 600; transition: top .16s var(--suave); }
.saltar:focus { top: 12px; }

/* Etiquetas de categoría: Archivo Narrow, mayúsculas, un solo uso por sección */
.et-cat, .f-cat, .eyebrow { margin: 0 0 10px; font: 600 12.5px/1 var(--narrow); letter-spacing: .14em; text-transform: uppercase; color: var(--acento); }

/* ---- Índice de objetos (nav) ---- */
.indice { position: fixed; z-index: 50; inset: 0 0 auto; height: 68px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 24px; padding: 0 var(--gutter);
  background: linear-gradient(180deg, rgba(11, 21, 38, .78), rgba(11, 21, 38, 0)); }
.marca { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font: 700 15px var(--sans); letter-spacing: -.01em; }
.marca .mono { width: 34px; height: 34px; border-radius: 6px; display: grid; place-items: center; background: var(--kraft); color: var(--kraft-tinta); font: 700 11.5px var(--narrow); letter-spacing: .08em; }
.marca-t { display: grid; line-height: 1.1; }
.marca-t small { font: 500 11px var(--narrow); color: var(--tinta-suave); letter-spacing: .04em; }
.indice ol { list-style: none; margin: 0; padding: 0; display: flex; justify-content: center; gap: 4px; }
.indice ol a { display: block; padding: 10px 12px; border-radius: 6px; color: var(--tinta-suave); text-decoration: none; font: 500 13.5px var(--narrow); letter-spacing: .02em; transition: color .14s var(--suave), background .14s var(--suave); }
.indice ol a:hover { color: var(--tinta); }
.indice ol a.activa { color: var(--tinta); background: rgba(243, 246, 251, .08); }
.entrar { display: inline-flex; align-items: center; height: 40px; padding: 0 18px; border-radius: 6px; background: var(--acento); color: var(--sobre-acento); text-decoration: none; font: 700 14px var(--sans); transition: transform .12s var(--suave), filter .12s; }
.entrar:hover { filter: brightness(1.06); }
.entrar:active { transform: scale(.97); }

/* ---- Firma: la tarjeta de inspección ---- */
.tarjeta { position: fixed; z-index: 60; top: 84px; right: var(--gutter); width: 212px; perspective: 1400px; transform-origin: 50% -40px; transition: transform .7s var(--suave), opacity .5s var(--suave); }
.tarjeta.guardada { opacity: 0; pointer-events: none; transform: translateY(-20px) rotate(-4deg); }
.cordon { position: absolute; left: 50%; top: -84px; width: 2px; height: 96px; margin-left: -1px; background: linear-gradient(180deg, rgba(243, 246, 251, 0), rgba(243, 246, 251, .5) 30%, rgba(243, 246, 251, .6)); }
.colgante { position: relative; display: grid; transform-style: preserve-3d; transition: transform .9s var(--suave); will-change: transform; }
.colgante > .cara { grid-area: 1 / 1; align-self: start; }
.tarjeta.sellando .colgante { animation: colgar .9s var(--suave); }
@keyframes colgar { 0% { transform: rotate(0); } 30% { transform: rotate(-3.5deg); } 65% { transform: rotate(2deg); } 100% { transform: rotate(0); } }
.cara { position: relative; background: var(--kraft); color: var(--kraft-tinta); border-radius: 8px 8px 6px 6px; padding: 44px 18px 16px; backface-visibility: hidden; -webkit-backface-visibility: hidden;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .5) inset, 0 2px 4px rgba(0, 0, 0, .25), 0 22px 40px -18px rgba(0, 0, 0, .7); }
.cara::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: .06; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.reverso { transform: rotateY(180deg); }
.tarjeta.volteada .colgante { transform: rotateY(180deg); }
.ojal { position: absolute; left: 50%; top: 14px; width: 16px; height: 16px; margin-left: -8px; border-radius: 50%; background: var(--fondo); box-shadow: 0 0 0 3px #c3cedf, 0 1px 2px rgba(0, 0, 0, .3) inset; }
.t-titulo { margin: 0; font: 700 15px/1.1 var(--sans); letter-spacing: -.01em; text-transform: uppercase; font-variation-settings: "wdth" 88; }
.t-sub { margin: 4px 0 14px; font: 500 12px var(--narrow); color: var(--kraft-suave); letter-spacing: .02em; }
.sellos { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.sellos li { display: flex; align-items: center; gap: 10px; font: 600 13px var(--narrow); color: var(--kraft-suave); letter-spacing: .02em; transition: color .3s var(--suave); }
.casilla { position: relative; width: 20px; height: 20px; border: 1.5px solid #9fb0c8; border-radius: 3px; flex: none; }
.casilla::before { content: ""; position: absolute; inset: -9px; border-radius: 50%; border: 2.5px solid var(--acento); transform: scale(.6) rotate(-14deg); opacity: 0; transition: transform .35s var(--suave), opacity .25s; }
.casilla::after { content: ""; position: absolute; left: 5px; top: 1px; width: 6px; height: 11px; border: solid var(--acento); border-width: 0 3px 3px 0; transform: rotate(45deg) scale(0); transition: transform .3s var(--suave) .08s; }
.sellos li.sellado { color: var(--kraft-tinta); }
.sellos li.sellado .casilla::before { opacity: .9; transform: scale(1) rotate(-14deg); }
.sellos li.sellado .casilla::after { transform: rotate(45deg) scale(1); }
.t-pie { margin: 14px 0 0; font: 500 11.5px/1.4 var(--narrow); color: var(--kraft-suave); }
.tarjeta.completa .frente .t-pie { color: var(--acento); }
.reverso .t-sub { margin-bottom: 10px; }
.campo { display: grid; gap: 4px; margin-bottom: 10px; font: 600 11.5px var(--narrow); letter-spacing: .06em; text-transform: uppercase; color: var(--kraft-suave); }
.campo input { width: 100%; height: 40px; border: 1.5px solid #c3cedf; border-radius: 4px; background: #ffffff; color: var(--kraft-tinta); padding: 0 10px; font: 400 15px var(--sans); transition: border-color .14s, box-shadow .14s; }
.campo input:focus { outline: none; border-color: var(--acento); box-shadow: 0 0 0 3px rgba(47, 111, 219, .24); }
.campo-pass { position: relative; display: block; }
.campo-pass input { padding-right: 40px; }
.ojo { position: absolute; right: 2px; top: 2px; width: 36px; height: 36px; border: 0; background: none; color: var(--kraft-suave); border-radius: 4px; cursor: pointer; display: grid; place-items: center; }
.ojo svg { width: 20px; height: 20px; }
.ojo:hover { color: var(--kraft-tinta); }
.error { margin: 0 0 8px; min-height: 1.2em; font: 500 12.5px/1.3 var(--narrow); color: #b3321b; }
.boton { position: relative; display: flex; align-items: center; justify-content: center; width: 100%; height: 44px; border: 0; border-radius: 4px; background: var(--acento); color: var(--sobre-acento); font: 700 15px var(--sans); cursor: pointer; transition: transform .12s var(--suave), filter .12s; }
.boton:hover { filter: brightness(1.06); }
.boton:active { transform: scale(.97); }
.boton[disabled] { filter: saturate(.4) brightness(.9); cursor: progress; }
.boton[disabled] span { visibility: hidden; }
.boton[disabled]::after { content: ""; position: absolute; width: 18px; height: 18px; border-radius: 50%; border: 2.5px solid rgba(255, 255, 255, .35); border-top-color: var(--sobre-acento); animation: gira .8s linear infinite; }
@keyframes gira { to { transform: rotate(360deg); } }
.sso { display: block; margin: 10px 0 0; text-align: center; font: 600 13px var(--narrow); color: var(--kraft-tinta); }

/* ---- Secciones de la galería ---- */
.obj { position: relative; }
.fijo { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; background: var(--fondo); }
.capa { position: absolute; inset: 0; }
.capa img { width: 100%; height: 100%; object-fit: cover; max-width: none; }
.grano { position: absolute; inset: -50%; opacity: .045; pointer-events: none; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grano .9s steps(4) infinite; }
@keyframes grano { 25% { transform: translate(-3%, 2%); } 50% { transform: translate(2%, -3%); } 75% { transform: translate(-2%, -2%); } }
/* Banda inferior de borde a borde: oscurece solo donde va el texto */
.banda { position: absolute; left: 0; right: 0; bottom: 0; height: 64vh; background: linear-gradient(180deg, rgba(7, 14, 27, 0), rgba(7, 14, 27, .55) 30%, rgba(7, 14, 27, .88) 70%); pointer-events: none; }
.texto { position: absolute; z-index: 2; bottom: clamp(32px, 8vh, 88px); width: min(560px, calc(100% - 2 * var(--gutter))); }
.texto.col-izq { left: var(--gutter); }
.texto.col-der { right: var(--gutter); }
.texto h2 { font-size: clamp(30px, 3.6vw, 50px); margin-bottom: 14px; }
.texto p { margin: 0; color: var(--tinta); font-size: clamp(15px, 1.1vw, 17px); max-width: 48ch; }

/* Objeto 1 · hero con profundidad */
.hero { height: 190vh; }
.hero .capa { will-change: transform; }
.hero .capa.fondo img { transform: scale(1.08); }
.hero .capa.sujeto img { position: absolute; width: 50vw; max-width: 900px; min-width: 420px; height: auto; right: 7vw; bottom: 17vh; object-fit: contain; filter: drop-shadow(0 30px 24px rgba(0, 0, 0, .35)); }
.hero .bruma { background: radial-gradient(60% 30% at 30% 78%, rgba(220, 226, 235, .22), rgba(220, 226, 235, 0)); }
.hero .titulo { position: absolute; z-index: 3; left: var(--gutter); top: clamp(104px, 20vh, 200px); width: min(640px, calc(100% - 2 * var(--gutter))); }
.hero .titulo::before { content: ""; position: absolute; inset: -40px -60px -60px -80px; z-index: -1; border-radius: 40px; background: radial-gradient(closest-side, rgba(11, 21, 38, .72), rgba(11, 21, 38, 0)); }
.hero h1 { font-size: clamp(38px, 5.4vw, 78px); }
.hero h1 em { font-style: italic; font-weight: 600; color: #9dc1ff; }
.hero .eyebrow { color: var(--tinta-suave); }
/* La etiqueta colgada del camión: HTML real, nunca texto en la imagen */
.etiqueta { position: absolute; z-index: 3; margin: 0; right: clamp(16px, 9vw, 160px); bottom: clamp(60px, 11vh, 120px); width: 264px; transform-origin: 50% -28px; will-change: transform; }
.etiqueta::before { content: ""; position: absolute; left: 50%; top: -30px; width: 2px; height: 34px; margin-left: -1px; background: rgba(243, 246, 251, .55); }
.etiqueta figcaption { display: grid; gap: 6px; background: var(--kraft); color: var(--kraft-tinta); padding: 16px 16px 12px; border-radius: 6px; box-shadow: 0 2px 4px rgba(0, 0, 0, .3), 0 24px 40px -20px rgba(0, 0, 0, .8); font: 500 13px/1.3 var(--narrow); }
.etiqueta strong { font: 700 16px/1.1 var(--sans); letter-spacing: -.01em; font-variation-settings: "wdth" 90; margin-bottom: 4px; }
.et-fila { display: flex; justify-content: space-between; gap: 10px; color: var(--kraft-suave); border-top: 1px dashed #cfd8e6; padding-top: 6px; }
.et-fila b { color: var(--kraft-tinta); font-weight: 600; }
.et-fila b.alerta { color: #b3321b; }
.et-nota { font-size: 11px; color: var(--kraft-suave); letter-spacing: .06em; text-transform: uppercase; margin-top: 2px; }

/* Objeto 2 · fijo + texto que se arma */
.montacargas { height: 300vh; }
.montacargas .capa.fondo img { object-position: 30% 50%; }
.arma span { display: block; overflow: hidden; padding-bottom: .14em; margin-bottom: -.14em; }
.arma span::after { content: none; }
.arma span { clip-path: inset(0 0 110% 0); transform: translateY(.3em); transition: clip-path .7s var(--suave), transform .7s var(--suave); }
.arma.on span { clip-path: inset(-10% 0 -10% 0); transform: none; }
.arma.on span:nth-child(2) { transition-delay: .09s; }
.arma.on span:nth-child(3) { transition-delay: .18s; }
.pasos { position: relative; min-height: 5.2em; }
.pasos p { position: absolute; inset: 0 auto auto 0; opacity: 0; transform: translateY(12px); transition: opacity .5s var(--suave), transform .6s var(--suave); }
.pasos p.on { opacity: 1; transform: none; }

/* Objeto 3 · barrido antes/después */
.instalaciones { height: 260vh; }
/* La imagen se espeja: el extintor queda a la izquierda, lejos de la tarjeta colgada, y el texto a la derecha */
.instalaciones img.capa { object-position: 30% 50%; transform: scaleX(-1); }
img.capa.antes { filter: saturate(.5) brightness(.78) contrast(1.05); }
.capa.despues { clip-path: inset(0 100% 0 0); will-change: clip-path; }
.linea-barrido { position: absolute; top: 0; bottom: 0; left: 0; width: 2px; background: var(--tinta); box-shadow: 0 0 0 1px rgba(0, 0, 0, .25); opacity: .9; transform: translateX(-1px); will-change: transform; }
.marca-estado { position: absolute; top: 92px; padding: 6px 10px; border-radius: 4px; font: 600 12px var(--narrow); letter-spacing: .12em; text-transform: uppercase; background: rgba(7, 14, 27, .6); color: var(--tinta); }
.marca-estado.izq { left: var(--gutter); }
.marca-estado.der { right: var(--gutter); color: #9dc1ff; }

/* Objeto 4 · riel de obligaciones */
.obligaciones { height: 460vh; }
.obligaciones .fijo { background: var(--superficie); }
.riel-intro { top: clamp(96px, 16vh, 160px); bottom: auto; }
.riel { list-style: none; margin: 0; padding: 0 var(--gutter); position: absolute; left: 0; bottom: clamp(40px, 12vh, 120px); display: flex; gap: 16px; will-change: transform; }
.ficha { flex: none; width: 300px; min-height: 196px; display: grid; align-content: start; gap: 6px; padding: 20px 20px 18px; border-radius: 8px; background: var(--kraft); color: var(--kraft-tinta); position: relative;
  box-shadow: 0 1px 0 rgba(255, 255, 255, .5) inset, 0 16px 28px -18px rgba(0, 0, 0, .8); }
.ficha::before { content: ""; position: absolute; left: 50%; top: 10px; width: 10px; height: 10px; margin-left: -5px; border-radius: 50%; background: var(--superficie); box-shadow: 0 0 0 2px #c3cedf; }
.ficha .f-cat { margin: 12px 0 8px; color: var(--kraft-suave); }
.ficha strong { font: 700 20px/1.08 var(--sans); letter-spacing: -.02em; font-variation-settings: "wdth" 90; }
.ficha > span:last-child { font: 500 13px var(--narrow); color: var(--kraft-suave); }
.ficha:nth-child(odd) { transform: rotate(-.6deg); }
.ficha:nth-child(even) { transform: rotate(.5deg) translateY(10px); }

/* Silencio */
.silencio { height: 100vh; display: grid; place-items: center; background: #060d1a; padding: 0 var(--gutter); }
.silencio p { margin: 0; font: 500 clamp(18px, 1.8vw, 24px) var(--narrow); letter-spacing: .04em; color: var(--tinta-suave); opacity: 0; transform: translateY(10px); transition: opacity .9s var(--suave), transform .9s var(--suave); }
.silencio.on p { opacity: 1; transform: none; }

/* Pico · la ronda */
.ronda { height: 400vh; }
.ronda video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .5s var(--suave); }
.ronda .fijo.listo video { opacity: 1; }
.ronda .fijo.listo .quieto { visibility: hidden; transition: visibility 0s .5s; }
.beat { position: absolute; z-index: 2; left: var(--gutter); bottom: clamp(32px, 8vh, 88px); width: min(560px, calc(100% - 2 * var(--gutter))); pointer-events: none; }
.beat.b-der { left: auto; right: var(--gutter); }
.beat .scrim { position: absolute; left: -100vw; right: -100vw; bottom: calc(-1 * clamp(32px, 8vh, 88px)); height: 62vh; background: linear-gradient(180deg, rgba(7, 14, 27, 0), rgba(7, 14, 27, .55) 32%, rgba(7, 14, 27, .88) 70%); opacity: 0; transition: opacity .5s var(--suave); }
.beat .txt { position: relative; clip-path: inset(0 0 100% 0); transform: translateY(14px); transition: clip-path .7s var(--suave), transform .7s var(--suave); }
.beat.on .scrim { opacity: 1; }
.beat.on .txt { clip-path: inset(-10% -4% -12% -4%); transform: none; }
.beat h2 { font-size: clamp(30px, 3.6vw, 50px); margin-bottom: 12px; }
.beat p { margin: 0; font-size: clamp(15px, 1.1vw, 17px); max-width: 46ch; }

/* Cierre sostenido */
.cierre { position: relative; min-height: 100vh; min-height: 100svh; display: grid; grid-template-columns: minmax(0, 1fr) 320px; align-items: center; gap: 48px; padding: 120px var(--gutter) 64px; background: var(--fondo); }
.cierre-txt h2 { font-size: clamp(32px, 4vw, 58px); margin-bottom: 28px; }
.colofon { margin: 0; font: 500 13px var(--narrow); color: var(--tinta-suave); letter-spacing: .02em; }
.colofon a { color: var(--tinta-suave); }
.hueco-tarjeta { min-height: 420px; }
/* Cuando se llega al cierre la tarjeta viaja a su hueco, crece y se da vuelta */
.tarjeta.en-cierre { width: 320px; }
.tarjeta.en-cierre.quieta { transition: opacity .5s var(--suave); }
.tarjeta.en-cierre .cordon { opacity: 0; }
.tarjeta.en-cierre .cara { padding: 48px 24px 20px; }
.tarjeta.en-cierre.volteada .colgante { transform: rotateY(180deg); }
@media (hover: hover) and (pointer: fine) {
  .tarjeta.en-cierre.volteada .colgante { transition: transform .9s var(--suave); }
  .tarjeta.en-cierre.volteada.inclina .colgante { transition: transform .25s var(--suave); }
}

/* ---- Celular ---- */
@media (max-width: 760px) {
  .indice { height: 60px; gap: 10px; }
  .indice nav { visibility: hidden; }
  .entrar { justify-self: end; }
  .marca-t small { display: none; }
  .tarjeta { top: 70px; right: 12px; width: 132px; }
  .cordon { top: -70px; height: 80px; }
  .cara { padding: 30px 12px 12px; }
  .t-titulo { font-size: 11px; }
  .t-sub { display: none; }
  .sellos { gap: 5px; }
  .sellos li { font-size: 11px; gap: 7px; }
  .casilla { width: 15px; height: 15px; }
  .casilla::after { left: 3.5px; top: 0; width: 4.5px; height: 9px; }
  .casilla::before { inset: -7px; }
  .t-pie { display: none; }
  .hero { height: 170vh; }
  .hero .capa.fondo { background: url("/entrada/img/camion-escena-m.webp") center / cover; }
  .hero .capa.fondo img { opacity: 0; }
  .hero .capa.sujeto { display: none; }
  .hero .titulo { top: auto; bottom: 276px; width: calc(100% - 32px); left: 16px; }
  .hero .titulo::before { inset: -28px -16px -300px -16px; background: linear-gradient(180deg, rgba(11, 21, 38, 0), rgba(11, 21, 38, .74) 26%, rgba(11, 21, 38, .8)); border-radius: 0; }
  .hero h1 { font-size: 34px; }
  .etiqueta { left: 16px; right: auto; bottom: 28px; width: 232px; }
  .etiqueta::before { display: none; }
  .riel-intro { padding-right: 140px; }
  .instalaciones img.capa { object-position: 14% 50%; }
  .texto, .texto.col-der, .texto.col-izq, .beat, .beat.b-der { left: 16px; right: 16px; width: auto; bottom: 28px; }
  .texto h2, .beat h2 { font-size: 28px; }
  .banda, .beat .scrim { height: 72vh; }
  .montacargas { height: 260vh; }
  .instalaciones { height: 220vh; }
  .marca-estado { top: 76px; }
  .obligaciones { height: 380vh; }
  .riel-intro { top: 84px; }
  .riel { padding: 0 16px; gap: 12px; bottom: 36px; }
  .ficha { width: 232px; min-height: 160px; padding: 16px; }
  .ficha strong { font-size: 17px; }
  .ronda { height: 320vh; }
  .cierre { grid-template-columns: 1fr; gap: 24px; padding: 96px 16px 40px; align-content: start; }
  .cierre-txt h2 { font-size: 30px; }
  .hueco-tarjeta { min-height: 400px; }
  .tarjeta.en-cierre { width: min(320px, calc(100vw - 32px)); }
}
@media (max-width: 400px) { .hero h1 { font-size: 30px; } .etiqueta { width: 200px; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grano { animation: none; }
  .tarjeta.sellando .colgante { animation: none; }
  .colgante, .arma span, .beat .txt, .pasos p, .silencio p { transition-duration: .35s; }
  .hero .capa { transform: none !important; }
}

/* Marca: el logo real de AGP sobre su chip blanco */
.marca .mono { width: auto; height: 36px; padding: 0 8px; background: #fff; }
.marca .mono img { height: 26px; width: auto; display: block; }
@media (max-width: 760px) { .marca .mono { height: 32px; } .marca .mono img { height: 22px; } }