/* fuentes de reserva con las proporciones de las fuentes web: el texto no salta cuando terminan de cargar */
@font-face{font-family:"Archivo Fallback";src:local("Arial");size-adjust:103.07%;ascent-override:85.38%;descent-override:20.37%;line-gap-override:0%}
@font-face{font-family:"Instrument Fallback";src:local("Arial");size-adjust:101.85%;ascent-override:95.24%;descent-override:24.55%;line-gap-override:0%}
/* QuickMockups · sitio de bienvenida
   Paleta de imprenta: cartulina estucada, tinta, magenta de corte, cian de plegado y kraft. */
:root{
  --board:#F3F5F2; --sheet:#FFFFFF; --ink:#1B2230; --muted:#566070; --rule:#D5DAD6;
  --cut:#E5007D; --cut-ink:#FFFFFF; --crease:#009FE3; --ok:#1F8A4C; --kraft:#C99B6A; --kraft-ink:#2A1D10;
  --inside:#ECE8DE;
  /* Archivo: grotesca de ancho variable (62–125 %), expandida en la portada y condensada en las secciones */
  --font-d:"Archivo","Archivo Fallback","Helvetica Neue",Arial,sans-serif;
  /* mono técnica solo para medidas reales (cotas en mm) */
  --font-m:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --font-b:"Instrument Sans","Instrument Fallback",system-ui,-apple-system,"Segoe UI",sans-serif;
  /* caja de la portada (proporción 70 × 45 × 120 mm) */
  --L:168px; --W:108px; --H:288px; --T:40px; --G:28px;
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --board:#12161E; --sheet:#1A1F29; --ink:#E7EBF1; --muted:#9AA3B2; --rule:#2B3240;
  --cut:#FF3D9E; --cut-ink:#1A0610; --crease:#3CB9F0; --ok:#4CC383; --kraft:#7E5B3A; --kraft-ink:#F6EBDD; --inside:#2A2722; color-scheme:dark }}
:root[data-theme="dark"]{
  --board:#12161E; --sheet:#1A1F29; --ink:#E7EBF1; --muted:#9AA3B2; --rule:#2B3240;
  --cut:#FF3D9E; --cut-ink:#1A0610; --crease:#3CB9F0; --ok:#4CC383; --kraft:#7E5B3A; --kraft-ink:#F6EBDD; --inside:#2A2722; color-scheme:dark }

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} }
body{margin:0;background:var(--board);color:var(--ink);font-family:var(--font-b);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
:focus-visible{outline:2.5px solid var(--crease);outline-offset:3px;border-radius:2px}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--font-d);font-weight:800;line-height:1.02;letter-spacing:-.02em;margin:0;text-wrap:balance}
h2{font-size:clamp(36px,4.8vw,66px);font-stretch:70%;line-height:.96;letter-spacing:-.01em}
h3{font-size:21px;font-weight:700;font-stretch:106%;letter-spacing:-.01em}
p{margin:0}
kbd{font-family:var(--font-b);font-size:.85em;padding:1px 6px;border:1px solid var(--rule);border-bottom-width:2px;border-radius:4px;background:var(--sheet)}
.wrap{max-width:1180px;margin-inline:auto;padding-inline:max(20px,env(safe-area-inset-left,0px))}
/* el sitio es un troquel: lo que se corta va en magenta, lo que se dobla en cian punteado */
:root{--crease-dash:linear-gradient(90deg,color-mix(in srgb,var(--crease) 70%,transparent) 0 9px,transparent 9px 16px)}
/* superficies del navegador con los colores de imprenta */
html{accent-color:var(--cut);scrollbar-color:color-mix(in srgb,var(--ink) 32%,transparent) var(--board)}
::selection{background:color-mix(in srgb,var(--cut) 22%,transparent);color:var(--ink)}
main a:not(.btn),.foot-note a{text-decoration-thickness:1.5px;text-underline-offset:.22em;text-decoration-color:color-mix(in srgb,var(--cut) 55%,transparent);transition:text-decoration-color .15s}
main a:not(.btn):hover,.foot-note a:hover{text-decoration-color:var(--cut)}
.skip{position:absolute;left:12px;top:-60px;background:var(--ink);color:var(--board);padding:8px 14px;border-radius:6px;z-index:10}
.skip:focus{top:12px}

/* botones: el magenta es la acción principal, como la línea de corte en el troquel */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 20px;border-radius:6px;border:1.5px solid transparent;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;font-family:inherit;line-height:1.2}
.btn-sm{min-height:34px;padding:6px 12px;font-size:14px}
.btn-cut{background:var(--cut);color:var(--cut-ink)}
.btn-cut:hover{filter:brightness(1.08)}
.btn-ink{background:var(--ink);color:var(--board);min-height:40px;padding:8px 16px;font-size:15px}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-line:hover{background:var(--sheet)}

/* cabecera */
.site-head{border-bottom:1px solid var(--rule)}
.head-row{display:flex;align-items:center;gap:28px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--font-d);font-weight:800;font-stretch:112%;font-size:20px;letter-spacing:-.02em}
.site-nav{display:flex;gap:24px;margin-left:auto}
.site-nav a{text-decoration:none;color:var(--muted);font-weight:500;font-size:15.5px}
.site-nav a:hover{color:var(--ink)}

/* portada */
.hero{display:flex;flex-direction:column;justify-content:center;min-height:calc(100svh - 69px);padding-block:48px 64px}
.hero h1{font-size:clamp(44px,5.6vw,88px);font-stretch:116%;font-weight:850;line-height:.93;letter-spacing:-.04em;max-width:10ch}
.lead{margin-top:24px;font-size:19px;line-height:1.55;max-width:34em;color:var(--muted)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.fine{margin-top:16px;font-size:14.5px;color:var(--muted)}

/* la caja que se pliega */
.fold{margin:0;display:flex;flex-direction:column;align-items:center;gap:8px}
.fold-wrap{position:relative;width:100%;max-width:600px;aspect-ratio:1/1;touch-action:pan-y;cursor:grab;user-select:none}
.fold-wrap:active{cursor:grabbing}
.fold-stage{position:absolute;left:50%;top:50%;width:600px;height:600px;margin:-300px 0 0 -300px;transform:scale(calc(var(--s,1) * var(--zoom,1)));perspective:1700px;transition:transform .7s cubic-bezier(.2,.8,.2,1)}
/* el troquel plano se aleja un poco para que entren completos el troquel y sus cotas */
.stage[data-state="flat"],.stage[data-state="measure"]{--zoom:.88}
@media (prefers-reduced-motion:reduce){ .fold-stage{transition:none} }
/* la Q troquelada: se «corta» como en un plóter (cuerpo, luego aleta) y se marca el pliegue; después se arma la caja */
.q-die{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;fill:none;stroke-linecap:round;stroke-linejoin:round}
.q-bowl,.q-flap{stroke:var(--cut);stroke-width:2.5;stroke-dasharray:1;stroke-dashoffset:1}
.q-crease{stroke:var(--crease);stroke-width:2.5;stroke-dasharray:9 7;opacity:0}
.is-cut .q-bowl{stroke-dashoffset:0;transition:stroke-dashoffset .62s cubic-bezier(.5,0,.3,1)}
.is-cut .q-flap{stroke-dashoffset:0;transition:stroke-dashoffset .26s cubic-bezier(.4,0,.2,1) .56s}
.is-cut .q-crease{opacity:1;transition:opacity .2s .8s}
@media (prefers-reduced-motion:reduce){ .q-bowl,.q-flap,.q-crease{transition:none!important} }

.fb,.p{position:absolute;transform-style:preserve-3d;background-size:100% 100%;background-repeat:no-repeat}
.fb{left:calc(50% - var(--L) / 2);top:calc(50% - var(--H) / 2);width:var(--L);height:var(--H);background-image:url(../img/cara-front.webp?v=31719f4924);
  transform-origin:50% 50% calc(var(--W) / -2);transform:translateX(-178px);transition:transform 1.3s cubic-bezier(.55,0,.2,1) .7s}
.p{top:0;transition:transform .85s cubic-bezier(.55,0,.25,1),outline-color .5s;outline:1.5px dashed var(--crease);outline-offset:-.75px}
.fb{outline:1.5px dashed var(--crease);outline-offset:-.75px}
.right,.left{left:100%;width:var(--W);height:var(--H);transform-origin:0 50%}
.back{left:100%;width:var(--L);height:var(--H);transform-origin:0 50%}
.right{background-image:url(../img/cara-right.webp?v=6174c1ee83)}
.back{background-image:url(../img/cara-back.webp?v=4a28ce1d71)}
.left{background-image:url(../img/cara-left.webp?v=d28316bff4)}
.top{top:auto;bottom:100%;left:0;width:var(--L);height:var(--W);transform-origin:50% 100%;background-image:url(../img/cara-top.webp?v=fdb60edeb7)}
.bottom{top:100%;left:0;width:var(--L);height:var(--W);transform-origin:50% 0;background-image:url(../img/cara-bottom.webp?v=56561a4abc)}
/* solapas y pestaña: contorno de corte en magenta */
.tuck,.tuck2,.glue{outline:none;background-color:transparent}
.tuck{top:auto;bottom:100%;left:0;width:var(--L);height:var(--T);transform-origin:50% 100%;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 168 40' preserveAspectRatio='none'%3E%3Cpath d='M.75 40 6 12 16 .75h136L162 12l5.25 28' fill='%23ECE8DE' stroke='%23E5007D' stroke-width='1.5'/%3E%3C/svg%3E")}
.tuck2{top:100%;left:0;width:var(--L);height:var(--T);transform-origin:50% 0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 168 40' preserveAspectRatio='none'%3E%3Cpath d='M.75 0 6 28l10 11.25h136L162 28l5.25-28' fill='%23ECE8DE' stroke='%23E5007D' stroke-width='1.5'/%3E%3C/svg%3E")}
.glue{left:auto;right:100%;width:var(--G);height:var(--H);transform-origin:100% 50%;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 28 288' preserveAspectRatio='none'%3E%3Cpath d='M28 .75 .75 10v268L28 287.25' fill='%23ECE8DE' stroke='%23E5007D' stroke-width='1.5'/%3E%3C/svg%3E")}
/* cara interior (cartón) y sombreado de los costados */
.fb::after,.right::after,.back::after,.left::after,.top::after,.bottom::after{content:"";position:absolute;inset:0;background:var(--inside);transform:rotateY(180deg);backface-visibility:hidden}
.fb,.right,.back,.left,.top,.bottom{backface-visibility:hidden}
.right::before,.left::before,.top::before{content:"";position:absolute;inset:0;opacity:0;transition:opacity .9s;pointer-events:none;backface-visibility:hidden}
.right::before,.left::before{background:#000}
.top::before{background:#fff}
.fold-floor{position:absolute;left:50%;top:calc(50% + var(--H) * .62);width:420px;height:80px;margin-left:-210px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(20,24,32,.34),rgba(20,24,32,0));opacity:0;transition:opacity .8s}

/* al desplegar: primero las solapas, luego tapa y base, al final los costados */
.tuck,.tuck2{transition-delay:0s}
.top,.bottom{transition-delay:.3s}
.right,.back,.left,.glue{transition-delay:.6s}
/* al plegar: el orden inverso */
.is-folded .fb{transform:translateY(10px) scale(1.32) rotateX(var(--rx,-16deg)) rotateY(var(--ry,-34deg));transition-delay:0s}
.is-folded .right,.is-folded .back,.is-folded .left{transform:rotateY(90deg);transition-delay:0s}
.is-folded .glue{transform:rotateY(-90deg);transition-delay:0s}
.is-folded .top{transform:rotateX(90deg);transition-delay:.55s}
.is-folded .bottom{transform:rotateX(-90deg);transition-delay:.55s}
.is-folded .tuck{transform:rotateX(90deg);transition-delay:1s}
.is-folded .tuck2{transform:rotateX(-90deg);transition-delay:1s}
.is-folded .p,.is-folded .fb{outline-color:transparent}
/* las solapas y la pestaña quedan dentro de la caja cerrada: se ocultan al terminar de plegar
   (evita que el navegador las dibuje por encima de la tapa) */
.tuck,.tuck2,.glue{transition-property:transform,opacity}
.is-folded .tuck,.is-folded .tuck2{opacity:0;transition:transform .85s cubic-bezier(.55,0,.25,1) 1s,opacity 0s linear 1.85s}
.is-folded .glue{opacity:0;transition:transform .85s cubic-bezier(.55,0,.25,1) 0s,opacity 0s linear .85s}
.is-folded .right::before{opacity:.14}
.is-folded .left::before{opacity:.2}
.is-folded .top::before{opacity:.12}
.is-folded .fold-floor{opacity:1;transition-delay:.9s}
/* a medio plegar: el cuerpo armado y la tapa y la base todavía abiertas */
.is-half .fb{transform:translateY(-4px) scale(1.12) rotateX(var(--rx,-20deg)) rotateY(var(--ry,-34deg));transition-delay:0s}
.is-half .right,.is-half .back,.is-half .left{transform:rotateY(90deg);transition-delay:0s}
.is-half .glue{transform:rotateY(-90deg);transition-delay:0s}
.is-half .top{transform:rotateX(28deg);transition-delay:.35s}
.is-half .bottom{transform:rotateX(-38deg);transition-delay:.35s}
.is-half .fold-floor{opacity:.7;transition-delay:.6s}
.is-half .right::before{opacity:.14}
.is-half .left::before{opacity:.2}
.is-dragging .fb{transition:none}
@media (prefers-reduced-motion:reduce){ .fb,.p,.fold-floor,.p::before{transition:none!important} }

.fold figcaption{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px 18px;font-size:14.5px;color:var(--muted)}
.legend{display:inline-flex;align-items:center;gap:8px}
.legend i{display:inline-block;width:26px;height:0;border-top:2px solid var(--cut)}
.legend .l-crease{border-top:2px dashed var(--crease)}
.fold-hint{display:none}
.is-folded-cap .fold-hint{display:inline}

/* ───────── historia cinética: la caja queda fija y cambia de estado con cada bloque de texto ───────── */
.story{position:relative;isolation:isolate;overflow-x:clip;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);column-gap:clamp(32px,5vw,72px);
  max-width:1240px;margin-inline:auto;padding-inline:max(20px,env(safe-area-inset-left,0px))}
.story>.hero{grid-column:1;grid-row:1}
.story>.what{grid-column:1;grid-row:2}
.story>.how{grid-column:1;grid-row:3}
.stage{grid-column:2;grid-row:1 / span 3;align-self:start;position:sticky;top:max(12px,calc(50svh - 340px));margin:0;padding-block:24px}

/* fondo: el troquel real de la caja, gigante, se corta a medida que avanza la historia (--p de 0 a 1) */
.story-die{position:absolute;z-index:-1;left:-22%;top:3%;width:min(1600px,150%);height:auto;pointer-events:none;fill:none;stroke-linejoin:round;stroke-linecap:round;
  transform:translateY(calc(var(--p,0) * 160px)) rotate(calc(-10deg + var(--p,0) * 8deg));transform-origin:30% 10%;opacity:.3}
.sd-cut{stroke:var(--cut);stroke-width:.4;stroke-dasharray:1;stroke-dashoffset:calc(1 - max(0, (var(--p,0) - .1) * 1.15))}
.sd-crease{stroke:var(--crease);stroke-width:.38;stroke-dasharray:2.4 1.7;opacity:clamp(0,calc((var(--p,0) - .3) * 2),1)}
@media (prefers-reduced-motion:reduce){ .story-die{transform:rotate(-10deg)} .sd-cut{stroke-dashoffset:0} .sd-crease{opacity:1} }

/* el pliego del escenario: marcas de corte de imprenta en las esquinas */
.stage-sheet{position:relative;width:100%;max-width:min(600px,72svh);margin-inline:auto;aspect-ratio:1;border-radius:18px;overflow:clip;
  background:color-mix(in srgb,var(--sheet) 55%,transparent)}
.stage-sheet::before{content:"";position:absolute;inset:14px;z-index:3;pointer-events:none;--m:color-mix(in srgb,var(--ink) 40%,transparent);
  background:linear-gradient(var(--m),var(--m)) 0 0/18px 1.5px,linear-gradient(var(--m),var(--m)) 0 0/1.5px 18px,
    linear-gradient(var(--m),var(--m)) 100% 0/18px 1.5px,linear-gradient(var(--m),var(--m)) 100% 0/1.5px 18px,
    linear-gradient(var(--m),var(--m)) 0 100%/18px 1.5px,linear-gradient(var(--m),var(--m)) 0 100%/1.5px 18px,
    linear-gradient(var(--m),var(--m)) 100% 100%/18px 1.5px,linear-gradient(var(--m),var(--m)) 100% 100%/1.5px 18px;background-repeat:no-repeat}
/* flash de cámara al exportar la foto (paso 4) */
.stage-sheet::after{content:"";position:absolute;inset:0;z-index:4;background:#FFFFFF;opacity:0;pointer-events:none}
.stage.is-shot .stage-sheet::after{animation:qm-flash .55s cubic-bezier(.2,.8,.2,1)}
@keyframes qm-flash{0%{opacity:.8}100%{opacity:0}}
.stage .fold-wrap{max-width:none}
/* escena del paso 4: luz cálida y una mesa */
.stage-scene{position:absolute;inset:0;opacity:0;transition:opacity .7s;
  background:radial-gradient(ellipse 70% 55% at 50% 34%,color-mix(in srgb,var(--kraft) 30%,var(--sheet)),transparent 72%),
    linear-gradient(180deg,transparent 64%,color-mix(in srgb,var(--kraft) 55%,transparent) 64%,color-mix(in srgb,var(--kraft) 80%,var(--ink) 8%))}
.stage[data-state="scene"] .stage-scene{opacity:1}
/* la foto exportada cae sobre el pliego */
.stage-photo{position:absolute;z-index:2;right:7%;bottom:9%;width:25%;aspect-ratio:544/690;object-fit:cover;object-position:50% 50%;border:5px solid #FFFFFF;border-radius:3px;
  box-shadow:0 22px 34px -14px rgba(20,24,32,.55);opacity:0;transform:translateY(46px) rotate(14deg) scale(.86);
  transition:opacity .25s,transform .3s}
.stage[data-state="scene"] .stage-photo{opacity:1;transform:rotate(6deg);transition:opacity .3s .45s,transform .8s cubic-bezier(.16,1,.3,1) .45s}
/* lectura de medidas del estado actual */
.stage-readout{position:absolute;z-index:3;left:26px;top:22px;margin:0;font-family:var(--font-m);font-weight:500;font-size:13px;letter-spacing:.01em;
  color:var(--ink);background:color-mix(in srgb,var(--sheet) 86%,transparent);padding:4px 9px;border-radius:4px}
.stage-readout span{display:inline-block;transition:opacity .2s,transform .2s}
.stage-readout.is-swap span{opacity:0;transform:translateY(4px)}
/* la Q solo acompaña a la portada */
.q-die{transition:opacity .45s}
.stage:not([data-state="hero"]) .q-die{opacity:0}
/* cotas del troquel plano */
.dims{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;fill:none;stroke:var(--ink);stroke-width:1.5}
.dims text{fill:var(--ink);stroke:none;font-family:var(--font-m);font-weight:500;font-size:16px;text-anchor:middle}
.dim{opacity:0;transform:translateY(8px);transition:opacity .3s,transform .3s}
.dim-h{transform:translateX(8px)}
.stage[data-state="measure"] .dim{opacity:1;transform:none;transition:opacity .4s .5s,transform .5s cubic-bezier(.2,.8,.2,1) .5s}
.stage[data-state="measure"] .dim-w{transition-delay:.62s}
.stage[data-state="measure"] .dim-h{transition-delay:.74s}
.stage figcaption{margin-top:6px}
@media (prefers-reduced-motion:reduce){ .stage-photo,.dim,.stage-scene,.stage-readout span{transition:none!important} .stage.is-shot .stage-sheet::after{animation:none} }

/* entre secciones, líneas de plegado: cada sección es un panel de la misma caja */
.what,.gen-teaser,.faq,.glossary,.tro-sec{background:var(--crease-dash) 0 0/16px 1.5px repeat-x}

/* qué es */
.what{display:flex;flex-direction:column;gap:28px;padding-block:80px 72px;min-height:80svh;justify-content:center}
.what-body{display:flex;flex-direction:column;gap:18px;max-width:40em}
.what-body strong{font-weight:600}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:16px 0 0;padding-top:20px;border-top:2px solid var(--ink)}
.facts dt{font-size:14.5px;color:var(--muted)}
.facts dd{margin:4px 0 0;font-weight:600;font-size:17px;line-height:1.35}

/* pasos */
.how{background:var(--crease-dash) 0 0/16px 1.5px repeat-x;padding-block:80px 120px}
/* cada paso ocupa casi una pantalla: el número es un recorte en contorno que se rellena al llegar al paso */
.steps{list-style:none;counter-reset:paso;margin:24px 0 40px;padding:0}
.steps li{counter-increment:paso;display:flex;flex-direction:column;justify-content:center;gap:10px;min-height:min(70svh,640px);padding-block:24px}
.steps li::before{content:counter(paso);font-family:var(--font-d);font-weight:900;font-stretch:62%;font-size:clamp(110px,12vw,176px);line-height:.78;letter-spacing:-.02em;
  color:transparent;-webkit-text-stroke:2px var(--cut);transform-origin:0 100%;transition:color .45s,transform .6s cubic-bezier(.2,.8,.2,1);margin-bottom:10px}
.steps li.is-active::before{color:var(--cut);transform:scale(1.04)}
.steps h3{font-size:clamp(24px,2.4vw,32px);font-stretch:112%;letter-spacing:-.025em}
.steps p{color:var(--muted);max-width:34em;font-size:18px}
@media (prefers-reduced-motion:reduce){ .steps li::before{transition:none} }

/* el editor real a todo el ancho; con soporte, crece mientras entra en pantalla */
.showcase{margin:0 auto;max-width:1400px;padding:24px clamp(16px,3vw,40px) 104px}
.showcase img{width:100%;border-radius:14px;border:1px solid var(--rule);box-shadow:0 50px 80px -50px rgba(20,24,32,.55)}
.showcase figcaption{margin:18px auto 0;max-width:46em;text-align:center;color:var(--muted);font-size:15.5px}
@supports (animation-timeline:view()){
  @media (prefers-reduced-motion:no-preference){
    .showcase img{animation:qm-grow linear both;animation-timeline:view();animation-range:entry 0% cover 42%}
  }
}
@keyframes qm-grow{from{transform:translateY(60px) scale(.84);opacity:.35}to{transform:none;opacity:1}}
.shot{margin:0}
.shot img{border-radius:8px;border:1px solid var(--rule);box-shadow:0 18px 40px -22px rgba(20,24,32,.45)}
.shot figcaption{margin-top:12px;font-size:14.5px;color:var(--muted);max-width:60ch}

/* imán */
.split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1fr);gap:56px;align-items:center;padding-block:88px}
.shot-tall img{max-height:620px;width:auto;margin-inline:auto}
.split-copy{display:flex;flex-direction:column;gap:18px;max-width:60ch}
.guides{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.guides li{display:grid;grid-template-columns:34px minmax(0,1fr);gap:12px;align-items:baseline}
.guides i{display:block;height:0;border-top:3px solid var(--cut);transform:translateY(-4px)}
.guides .g-crease{border-top:3px dashed var(--crease)}
.guides .g-ok{border-top-color:var(--ok)}
.guides strong{font-weight:600}

/* adelanto del generador en la portada */
.gen-teaser{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;padding-block:88px}
.gen-teaser .shot img{background:#FFFFFF;padding:10px}
.gen-teaser .plain a{color:var(--ink)}
@media (max-width:980px){ .gen-teaser{grid-template-columns:1fr;gap:32px} }

/* escenas */
.scenes{background:var(--crease-dash) 0 0/16px 1.5px repeat-x,var(--crease-dash) 0 100%/16px 1.5px repeat-x,var(--sheet);padding-block:88px}
.scenes-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.plain{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:10px}
.plain li::marker{color:var(--cut)}

/* ficha técnica sobre kraft */
.spec{background:var(--kraft);color:var(--kraft-ink);padding-block:88px}
.spec-intro{margin-top:10px;font-size:18px}
.spec-sheet{margin:36px 0 0;border-top:2px solid currentColor}
.spec-sheet div{display:grid;grid-template-columns:minmax(0,200px) minmax(0,1fr);gap:24px;padding-block:18px;border-bottom:1.5px dashed color-mix(in srgb,currentColor 45%,transparent)}
.spec-sheet dt{font-family:var(--font-d);font-weight:800;font-stretch:72%;font-size:30px;line-height:1}
.spec-sheet dd{margin:0;max-width:72ch}

/* para quién */
.who{padding-block:88px}
.who-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin:32px 0 0}
.who-list div{border-top:2px solid var(--ink);padding-top:16px}
.who-list dt{font-family:var(--font-d);font-weight:800;font-stretch:74%;font-size:clamp(26px,2.6vw,34px);line-height:1;letter-spacing:-.01em}
.who-list dd{margin:8px 0 0;color:var(--muted)}

/* publicidad */
.adslot{display:flex;flex-direction:column;gap:6px;padding-block:8px 40px}
.adlabel{font-size:12.5px;color:var(--muted)}
.adslot ins{width:100%;min-height:100px}
.adph{width:100%;height:110px;display:flex;align-items:center;justify-content:center;border:1.5px dashed var(--rule);border-radius:8px;color:var(--muted);font-size:14px;background:var(--sheet)}

/* preguntas */
.faq{padding-block:72px}
.faq-list{margin-top:28px;max-width:820px}
.faq details{border-bottom:1px solid var(--rule)}
.faq summary{list-style:none;cursor:pointer;padding:18px 40px 18px 0;position:relative;font-weight:600;font-size:18.5px}
.faq summary::-webkit-details-marker{display:none}
/* indicador: una aleta de cierre que se abre junto con la respuesta */
.faq summary::after{content:"";position:absolute;right:4px;top:50%;width:22px;height:13px;margin-top:-13px;background:var(--cut);transform-origin:50% 100%;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 13'%3E%3Cpath d='M1.2 12 3.4 4.2 6.6 1.2h8.8l3.2 3 2.2 7.8' fill='none' stroke='%23000' stroke-width='2' stroke-linejoin='round' stroke-linecap='round'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 22 13'%3E%3Cpath d='M1.2 12 3.4 4.2 6.6 1.2h8.8l3.2 3 2.2 7.8' fill='none' stroke='%23000' stroke-width='2' stroke-linejoin='round' stroke-linecap='round'/%3E%3C/svg%3E") center/contain no-repeat;
  transition:transform .28s cubic-bezier(.2,.8,.2,1)}
.faq summary::before{content:"";position:absolute;right:4px;top:50%;width:22px;height:2px;margin-top:-1px;background:var(--crease-dash) 0 0/6px 2px repeat-x;
  transition:transform .28s cubic-bezier(.2,.8,.2,1)}
.faq details[open] summary::after{transform:scaleY(-1)}
.faq summary:hover::after{transform:translateY(-2px)}
.faq details[open] summary:hover::after{transform:scaleY(-1)}
.faq summary{color:var(--ink)}
.faq details p{padding:0 0 20px;color:var(--muted);max-width:70ch}
@media (prefers-reduced-motion:reduce){ .faq summary::after,.faq summary::before{transition:none} }

/* glosario */
.glossary{padding-block:72px}
.glo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 48px;margin:28px 0 0}
.glo dt{font-weight:600;font-size:17.5px}
/* muestra dibujada del término: la línea o la pieza de la que se habla */
.glo-mark{display:inline-block;width:30px;height:12px;margin-right:10px;vertical-align:middle;transform:translateY(-1px)}
.glo-mark.m-cut{height:0;border-top:2.5px solid var(--cut)}
.glo-mark.m-crease{height:2.5px;background:linear-gradient(90deg,var(--crease) 0 5px,transparent 5px 8px) 0 0/8px 2.5px repeat-x}
.glo-mark.m-flap{width:26px;height:14px;background:var(--cut);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 26 14'%3E%3Cpath d='M1.2 13 3.8 4.6 7.4 1.2h11.2l3.6 3.4 2.6 8.4' fill='none' stroke='%23000' stroke-width='2' stroke-linejoin='round' stroke-linecap='round'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 26 14'%3E%3Cpath d='M1.2 13 3.8 4.6 7.4 1.2h11.2l3.6 3.4 2.6 8.4' fill='none' stroke='%23000' stroke-width='2' stroke-linejoin='round' stroke-linecap='round'/%3E%3C/svg%3E") center/contain no-repeat}
.glo dd{margin:4px 0 0;color:var(--muted);max-width:60ch}

/* cierre */
/* cierre: un panel troquelado con su aleta de cierre; al ir a «Abrir el editor» la aleta se pliega y la caja se cierra */
.final{--flap-x:clamp(24px,5vw,64px);position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:16px;
  width:calc(100% - 40px);max-width:1140px;margin:136px auto 96px;padding:64px var(--flap-x) 60px;
  background:var(--sheet);border:2px solid var(--cut);border-radius:14px}
.final::before,.final::after{content:"";position:absolute;left:var(--flap-x);top:-50px;width:240px;height:50px;
  transform-origin:50% 48px;transition:transform .45s cubic-bezier(.2,.8,.2,1)}
/* aleta: relleno del cartón y, en su base, el pliegue (tapa la línea de corte del panel) */
.final::before{background:var(--crease-dash) 0 100%/16px 2px repeat-x,var(--sheet);
  clip-path:polygon(0 100%,0 48px,9px 15px,23px 1px,217px 1px,231px 15px,240px 48px,240px 100%)}
/* aleta: su contorno de corte */
.final::after{background:var(--cut);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 50'%3E%3Cpath d='M1 48 10 15.4 23.4 2h193.2L230 15.4 239 48' fill='none' stroke='%23000' stroke-width='2' stroke-linejoin='round'/%3E%3C/svg%3E") 0 0/240px 50px no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 50'%3E%3Cpath d='M1 48 10 15.4 23.4 2h193.2L230 15.4 239 48' fill='none' stroke='%23000' stroke-width='2' stroke-linejoin='round'/%3E%3C/svg%3E") 0 0/240px 50px no-repeat}
.final:has(.btn:hover,.btn:focus-visible)::before,.final:has(.btn:hover,.btn:focus-visible)::after{transform:perspective(520px) rotateX(56deg)}
@media (prefers-reduced-motion:reduce){ .final::before,.final::after{transition:none} }
/* en pantallas anchas el cierre repite la Q troquelada de la portada: la página empieza y termina con ella */
@media (min-width:981px){
  .final{--q-die:url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%2280 80 480 480%22%3E%3Cg fill=%22none%22 stroke-width=%225%22 stroke-linecap=%22round%22 stroke-linejoin=%22round%22%3E%3Cpath d=%22M403 481.87A210 210 0 1 1 479.87 405%22 stroke=%22%23E5007D%22/%3E%3Cpath d=%22M479.87 405L511.11 451.09Q534.81 474.79 519.3 490.3L488.3 521.3Q472.79 536.81 449.09 513.11L403 481.87%22 stroke=%22%23E5007D%22/%3E%3Cpath d=%22M479.87 405L403 481.87%22 stroke=%22%23009FE3%22 stroke-dasharray=%2214 11%22/%3E%3C/g%3E%3C/svg%3E");padding-right:calc(var(--flap-x) + 260px);background:var(--q-die) right var(--flap-x) center/210px no-repeat,var(--sheet)}
  :root[data-theme="dark"] .final{--q-die:url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%2280 80 480 480%22%3E%3Cg fill=%22none%22 stroke-width=%225%22 stroke-linecap=%22round%22 stroke-linejoin=%22round%22%3E%3Cpath d=%22M403 481.87A210 210 0 1 1 479.87 405%22 stroke=%22%23FF3D9E%22/%3E%3Cpath d=%22M479.87 405L511.11 451.09Q534.81 474.79 519.3 490.3L488.3 521.3Q472.79 536.81 449.09 513.11L403 481.87%22 stroke=%22%23FF3D9E%22/%3E%3Cpath d=%22M479.87 405L403 481.87%22 stroke=%22%233CB9F0%22 stroke-dasharray=%2214 11%22/%3E%3C/g%3E%3C/svg%3E")}
}
@media (min-width:981px) and (prefers-color-scheme:dark){ :root:not([data-theme="light"]) .final{--q-die:url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%2280 80 480 480%22%3E%3Cg fill=%22none%22 stroke-width=%225%22 stroke-linecap=%22round%22 stroke-linejoin=%22round%22%3E%3Cpath d=%22M403 481.87A210 210 0 1 1 479.87 405%22 stroke=%22%23FF3D9E%22/%3E%3Cpath d=%22M479.87 405L511.11 451.09Q534.81 474.79 519.3 490.3L488.3 521.3Q472.79 536.81 449.09 513.11L403 481.87%22 stroke=%22%23FF3D9E%22/%3E%3Cpath d=%22M479.87 405L403 481.87%22 stroke=%22%233CB9F0%22 stroke-dasharray=%2214 11%22/%3E%3C/g%3E%3C/svg%3E")} }
.final h2{font-size:clamp(34px,4.6vw,60px);letter-spacing:-.03em}
.final p{color:var(--muted);max-width:52ch;margin-bottom:8px}

/* pie */
.site-foot{border-top:1px solid var(--rule);padding-block:28px 36px;font-size:15px}
.foot-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 32px}
.foot-brand{display:flex;align-items:center;gap:8px;font-family:var(--font-d);font-weight:700}
.site-foot nav{display:flex;flex-wrap:wrap;gap:8px 22px}
.site-foot nav a{color:var(--muted);text-decoration:none}
.site-foot nav a:hover{color:var(--ink);text-decoration:underline}
.foot-note{margin-left:auto;color:var(--muted)}
.foot-note a{color:var(--ink)}

/* página de texto (privacidad) */
.doc{max-width:760px;padding-block:56px 80px}
.doc h1{font-size:clamp(34px,4vw,48px);margin-bottom:12px}
.doc h2{font-size:24px;margin:40px 0 10px}
.doc p,.doc li{color:var(--muted);max-width:42em}
.doc p+p{margin-top:12px}
.doc ul{padding-left:20px;display:flex;flex-direction:column;gap:6px}
.doc .updated{font-size:14.5px}

/* tablet */
@media (max-width:980px){
  /* la historia pasa a una columna: el escenario queda fijo arriba mientras el texto corre debajo */
  .story{grid-template-columns:minmax(0,1fr)}
  .story>.hero,.story>.what,.story>.how,.stage{grid-column:1;grid-row:auto}
  .hero{min-height:0;padding-block:36px 28px}
  .hero h1{max-width:12ch}
  .stage{top:0;z-index:2;padding-block:6px 4px;background:var(--crease-dash) 0 100%/16px 1.5px repeat-x,var(--board)}
  .stage-sheet{max-width:min(100%,36svh)}
  .stage figcaption{gap:4px 12px;font-size:13.5px}
  .stage .fold-hint{display:none}
  .stage-readout{left:12px;top:10px;font-size:11.5px}
  .stage-sheet::before{inset:8px}
  .what{min-height:0;padding-block:56px 40px}
  .steps li{min-height:52svh}
  .story-die{width:260%;left:-70%;top:12%;opacity:.32}
  .how-grid,.scenes-grid,.split{grid-template-columns:1fr;gap:40px}
  .showcase{padding-bottom:72px}
  .split .shot{order:2}
  .who-list{grid-template-columns:1fr;gap:24px}
}
/* pantallas táctiles: todo control mide al menos 44 px de alto */
@media (pointer:coarse){
  .btn-ink,.btn-sm,.skip{min-height:44px}
  .skip{display:inline-flex;align-items:center}
  .logo{min-height:44px}
  .site-foot nav a,.crumbs a,.site-nav a{display:inline-flex;align-items:center;min-height:44px}
  .site-foot nav{gap:0 22px}
}
/* celular */
@media (max-width:640px){
  body{font-size:16.5px}
  .site-nav{display:none}
  .head-row{justify-content:space-between}
  .logo{font-size:18px;font-stretch:100%;gap:8px}
  .head-row .btn-ink{white-space:nowrap}
  .lead{font-size:17.5px}
  .facts{grid-template-columns:1fr;gap:14px}
  .spec-sheet div{grid-template-columns:1fr;gap:6px}
  .glo{grid-template-columns:1fr}
  .how,.scenes,.spec,.split,.who{padding-block:60px}
  .cta-row .btn{flex:1 1 100%}
  .foot-note{margin-left:0}
  .final{width:calc(100% - 32px);padding-block:52px 44px;margin-top:112px}
}

/* páginas de troqueles */
.crumbs{padding-top:20px;font-size:14.5px;color:var(--muted)}
.crumbs a{color:var(--muted);display:inline-block;padding-block:3px}
.crumbs [aria-current]{color:var(--ink)}
.tro-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;padding-block:32px 64px}
.tro-hero h1{font-size:clamp(36px,4.4vw,58px);line-height:1.02;letter-spacing:-.03em}
.tro-copy .lead{max-width:36em}
.tro-fig{margin:0}
.tro-fig img{background:#FFFFFF;border:1px solid var(--rule);border-radius:8px;padding:10px;width:100%;height:auto}
.tro-fig figcaption{margin-top:10px;font-size:14.5px;color:var(--muted)}
.tro-sec{padding-block:56px;display:flex;flex-direction:column;gap:16px}
.tro-sec>p,.tro-sec li{max-width:70ch}
.tro-sec>p{color:var(--muted)}
.tro-sec a{color:var(--ink)}
.tro-types{list-style:none;margin:16px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.tro-types li{display:flex;flex-direction:column;gap:10px}
.tro-types img{background:#FFFFFF;border:1px solid var(--rule);border-radius:8px;padding:8px;width:100%;height:auto}
.tro-types h3 a{text-decoration:none}
.tro-types p{color:var(--muted);font-size:16px}
.tro-examples{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.tro-examples a{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1.5px solid var(--ink);border-radius:8px;text-decoration:none;min-height:100%}
.tro-examples a:hover{background:var(--sheet);border-color:var(--cut)}
.tro-examples span{color:var(--muted);font-variant-numeric:tabular-nums}
.spec-list{margin:0;border-top:2px solid var(--ink)}
.spec-list div{display:grid;grid-template-columns:minmax(0,160px) minmax(0,1fr);gap:20px;padding-block:14px;border-bottom:1.5px dashed var(--rule)}
.spec-list dt{font-weight:600}
.spec-list dd{margin:0;color:var(--muted);max-width:68ch}
.steps-plain{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:8px}
.steps-plain li::marker{color:var(--cut);font-weight:700}
.table-wrap{overflow-x:auto;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.cmp{border-collapse:collapse;width:100%;max-width:880px;font-size:16px}
.cmp th,.cmp td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--rule);vertical-align:top}
.cmp thead th{border-bottom:2px solid var(--ink);font-family:var(--font-d)}
.cmp tbody th{font-weight:600;white-space:nowrap}
.cmp td{color:var(--muted)}
@media (max-width:980px){ .tro-hero{grid-template-columns:1fr} .tro-types,.tro-examples{grid-template-columns:1fr} }
@media (max-width:640px){ .spec-list div{grid-template-columns:1fr;gap:4px} .cmp tbody th{white-space:normal} }