/* Luche — patio de colegio: tiza, asfalto y el tejo */
@font-face{font-family:'Bricolage Grotesque';src:url(fonts/bricolage-var.woff2) format('woff2');font-weight:400 800;font-stretch:75% 100%;font-display:swap}
@font-face{font-family:'Atkinson Hyperlegible';src:url(fonts/atkinson-400.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Atkinson Hyperlegible';src:url(fonts/atkinson-700.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'DM Mono';src:url(fonts/dmmono-400.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'DM Mono';src:url(fonts/dmmono-500.woff2) format('woff2');font-weight:500;font-display:swap}

:root{
  --tiza:#F7F5EF; --asfalto:#2B2D33; --asfalto-2:#3A3D45; --gris:#8C8F98;
  --tejo:#E84A2F; --amarillo:#FFC93C; --verde:#2FB37A; --azul:#3A7BFF;
  --display:'Bricolage Grotesque',system-ui,sans-serif;
  --sans:'Atkinson Hyperlegible',system-ui,sans-serif;
  --mono:'DM Mono',ui-monospace,monospace;

  /* tema claro: tiza de fondo, trazo de asfalto */
  --bg:var(--tiza); --fg:var(--asfalto); --muted:#55585F; --line:var(--asfalto);
  --surface:#FFFFFF; --soft:#ECE9E0; --accent-text:#B8321A; --shadow:var(--asfalto); --raya:var(--amarillo);
  --trazo:3px;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:var(--asfalto); --fg:var(--tiza); --muted:#BFC1C8; --line:var(--tiza);
    --surface:var(--asfalto-2); --soft:#33353C; --accent-text:var(--amarillo); --shadow:#17181C; --raya:var(--tejo);
  }
}
:root[data-theme="dark"]{
  --bg:var(--asfalto); --fg:var(--tiza); --muted:#BFC1C8; --line:var(--tiza);
  --surface:var(--asfalto-2); --soft:#33353C; --accent-text:var(--amarillo); --shadow:#17181C; --raya:var(--tejo);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{background:var(--bg);color:var(--fg);font:400 18px/1.55 var(--sans);overflow-x:hidden;overflow-x:clip}
img,video,svg{display:block;max-width:100%}
a{color:inherit;text-underline-offset:.18em;text-decoration-thickness:2px}
a:focus-visible,button:focus-visible,video:focus-visible{outline:3px solid var(--azul);outline-offset:3px}
.skip{position:absolute;left:16px;top:-60px;background:var(--amarillo);color:var(--asfalto);padding:11px 14px;font-weight:700;z-index:10}
.skip:focus{top:12px}

.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
h1,h2,h3{font-family:var(--display);font-weight:800;font-stretch:88%;letter-spacing:-.025em;line-height:.98}
h2{font-size:clamp(40px,5.4vw,68px)}
h3{font-size:26px;letter-spacing:-.015em;line-height:1.1}
.eyebrow{font-family:var(--mono);font-size:14px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:10px;margin-bottom:18px}
.eyebrow::before{content:"";width:14px;height:14px;border:var(--trazo) solid var(--line);flex:none}
.lead{font-size:21px;line-height:1.5;color:var(--muted);max-width:40ch}
section{padding:112px 0 0}

/* encabezado */
.top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:28px;padding-bottom:28px}
.top > a{display:block;padding:4px 0}
.logo{width:150px;height:auto;color:var(--fg)}
.logo .c1{fill:var(--azul)} .logo .c2{fill:var(--verde)} .logo .c3{fill:var(--amarillo)}
.logo rect,.logo path.cielo{stroke:currentColor;stroke-width:4}
.logo .tejo,.logo .estela{fill:var(--tejo)}
.top nav{display:flex;gap:28px;font-size:16px;font-weight:700}
.top nav a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;padding:6px 0;border-bottom:var(--trazo) solid transparent}
.top nav a:hover{border-color:var(--fg)}

/* botones */
.btn{display:inline-flex;align-items:center;gap:10px;font:700 18px/1 var(--sans);text-decoration:none;padding:16px 22px;border:var(--trazo) solid var(--line);transition:transform .12s,box-shadow .12s}
.btn.primary{background:var(--amarillo);color:var(--asfalto);border-color:var(--asfalto);box-shadow:5px 5px 0 var(--shadow)}
.btn.primary:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--shadow)}
.btn.primary:active{transform:translate(3px,3px);box-shadow:2px 2px 0 var(--shadow)}
.btn.ghost{background:transparent;color:var(--fg)}
.btn.ghost:hover{background:var(--soft)}

/* portada */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:end;padding-top:56px}
.hero h1{font-size:clamp(60px,8vw,116px);line-height:.9}
.hero h1 span{display:block;color:var(--accent-text)}
.hero .lead{margin-top:32px}
.hero .actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:40px}

/* el luche de la portada: columna de 3 + fila de 2, cielo arriba; el trazo es un SVG */
.patio{--u:min(150px,29vw);position:relative;width:calc(var(--u)*3);height:calc(var(--u)*3.62);margin-left:auto;color:var(--line)}
.patio .grid{position:absolute;left:0;bottom:0;display:grid;grid-template-columns:repeat(3,var(--u));grid-template-rows:repeat(3,var(--u))}
.patio .casilla{position:relative;overflow:hidden;background:var(--soft)}
.patio .casilla img{width:100%;height:100%;object-fit:cover}
.patio .casilla b{position:absolute;left:0;top:0;min-width:1.4em;padding:0 8px;background:var(--line);color:var(--bg);font:800 calc(var(--u)*.2)/1.25 var(--display);text-align:center}
.patio .c-verde{background:var(--verde)} .patio .c-amarillo{background:var(--amarillo)}
.patio .c-verde b,.patio .c-amarillo b{background:transparent;color:var(--asfalto);font-size:calc(var(--u)*.37);left:8%;top:2%}
.patio .tiza{position:absolute;inset:0;width:100%;height:100%;overflow:visible;fill:none;stroke:currentColor;stroke-width:3.4;stroke-linejoin:round;stroke-linecap:round}
.patio .tejo{position:absolute;left:calc(var(--u)*.39);top:calc(var(--u)*.3);width:calc(var(--u)*.22);height:calc(var(--u)*.22);border-radius:50%;background:var(--tejo);box-shadow:0 4px 0 rgba(0,0,0,.25)}

/* raya de tiza bajo un texto */
.raya{display:block;width:100%;height:.16em;margin-top:.04em;overflow:visible;fill:none;stroke:var(--raya);stroke-width:6px;vector-effect:non-scaling-stroke;stroke-linecap:round}
.hero h1 .l2{display:inline-block;white-space:nowrap}
.hero h1 .l1{color:inherit}
.contacto h2 .sub{display:inline-block}
.contacto .raya{--raya:var(--tejo)}
h2 .raya.h{width:min(180px,40%);height:14px;margin-top:16px}

/* qué hace */
.split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:56px;border-top:var(--trazo) solid var(--line)}
.trio > div{padding:28px 28px 8px 0}
.trio > div + div{padding-left:28px;border-left:var(--trazo) solid var(--line)}
.trio .ico{display:block;width:30px;height:30px;border:var(--trazo) solid var(--line);margin-bottom:18px}
.trio p{margin-top:12px;color:var(--muted)}
.para{margin-top:64px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.para > div{background:var(--surface);border:var(--trazo) solid var(--line);padding:24px}
.para h3{font-size:22px}
.para p{margin-top:8px;color:var(--muted);font-size:17px}
.metodo{margin-top:40px;padding:22px 24px;border-left:8px solid var(--tejo);background:var(--soft);max-width:880px}

/* cómo trabaja: los pasos sobre el luche */
.pasos ol{display:contents;list-style:none}
.pasos{position:relative;display:grid;grid-template-columns:repeat(3,1fr);grid-template-areas:"cielo head head" "s5 head head" "s4 . ." "s3 s2 s1";margin-top:0}
.pasos .head{grid-area:head;padding:0 0 32px 56px;align-self:end}
.pasos li{position:relative;border:var(--trazo) solid var(--line);margin:calc(var(--trazo)/-2);padding:24px 24px 28px;min-height:230px;background:var(--bg)}
.pasos li .n{font:800 56px/1 var(--display);display:block;margin-bottom:12px}
.pasos li h3{font-size:24px}
.pasos li p{margin-top:8px;color:var(--muted);font-size:17px}
.pasos li:nth-of-type(1){grid-area:s1} .pasos li:nth-of-type(2){grid-area:s2} .pasos li:nth-of-type(3){grid-area:s3}
.pasos li:nth-of-type(4){grid-area:s4} .pasos li:nth-of-type(5){grid-area:s5}
.pasos li:nth-of-type(1) .n{color:var(--accent-text)}
.pasos li::after{content:"";position:absolute;right:14px;top:14px;width:16px;height:16px}
.pasos li:nth-of-type(1)::after{background:var(--amarillo)} .pasos li:nth-of-type(2)::after{background:var(--verde)}
.pasos li:nth-of-type(3)::after{background:var(--azul)} .pasos li:nth-of-type(4)::after{background:var(--amarillo)}
.pasos li:nth-of-type(5)::after{background:var(--verde)}
.pasos .cielo{grid-area:cielo;align-self:end;position:relative;height:120px;border:var(--trazo) solid var(--line);border-bottom:0;border-radius:999px 999px 0 0;margin:0 calc(var(--trazo)/-2)}
.pasos .cielo i{position:absolute;left:50%;top:44px;width:40px;height:40px;margin-left:-20px;border-radius:50%;background:var(--tejo)}
.pasos .cielo span{position:absolute;left:0;right:0;bottom:8px;text-align:center;font-family:var(--mono);font-size:13px;color:var(--muted)}

/* formatos */
.formatos{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;margin-top:56px;align-items:end}
.formato .marco{border:var(--trazo) solid var(--line);background:var(--soft);display:grid;place-items:center;position:relative;overflow:hidden}
.formato .marco span{font:800 clamp(40px,6vw,72px)/1 var(--display);font-stretch:88%;color:var(--muted)}
.formato .marco i{position:absolute;left:12px;bottom:12px;width:18px;height:18px;border-radius:50%;background:var(--tejo)}
.formato.h .marco{aspect-ratio:16/9}
.formato.v{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:end}
.formato.v .marco{aspect-ratio:9/16;width:clamp(120px,15vw,180px)}
.formato h3{margin-top:18px}
.formato.v h3{margin-top:0}
.formato p{margin-top:8px;color:var(--muted)}
.formato .dim{font-family:var(--mono);font-size:14px;color:var(--muted);margin-top:10px}
.subs{margin-top:40px;color:var(--muted)}

/* ejemplos */
.ejemplos{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:56px}
.ejemplo .vid{position:relative}
.ejemplo .vid::before{content:"";position:absolute;inset:0;background:var(--line);transform:translate(6px,6px)}
.ejemplo video{position:relative;width:100%;aspect-ratio:16/9;background:#111;border:var(--trazo) solid var(--line);transition:transform .25s cubic-bezier(.215,.61,.355,1)}
.ejemplo:hover video,.ejemplo:focus-within video{transform:translate(-3px,-3px)}
.ejemplo .chip{display:inline-block;margin-top:16px;font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:.06em;text-transform:uppercase;padding:5px 10px;color:var(--asfalto)}
.chip.mat{background:var(--amarillo)} .chip.cie{background:var(--verde)} .chip.his{background:#8DB2FF}
.ejemplo h3{margin-top:12px;font-size:23px}
.ejemplo .meta{margin-top:6px;font-family:var(--mono);font-size:14px;color:var(--muted)}
.fuente{margin-top:36px;color:var(--muted);max-width:70ch}

/* contacto */
.contacto{margin-top:112px;background:var(--asfalto);color:var(--tiza);padding:88px 0}
.contacto .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.contacto h2 span{color:var(--amarillo)}
.contacto p{color:#CFD1D6;margin-top:20px;max-width:44ch}
.contacto ul{list-style:none;margin-top:20px;color:#CFD1D6}
.contacto li{padding:6px 0 6px 28px;position:relative}
.contacto li::before{content:"";position:absolute;left:0;top:13px;width:13px;height:13px;border:3px solid var(--tiza)}
.contacto .btn.primary{box-shadow:5px 5px 0 #000}
.contacto .ig{display:block;margin-top:10px;font-family:var(--mono);font-size:14px;color:var(--tiza);text-underline-offset:3px}
.contacto .eyebrow::before{border-color:var(--tiza)}
.contacto .mail{display:block;margin-top:18px;font-family:var(--mono);font-size:16px;color:var(--tiza)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .contacto{background:#202126}}
:root[data-theme="dark"] .contacto{background:#202126}

/* pie */
footer{padding:36px 0 48px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:16px;color:var(--muted)}
footer a{display:inline-block;padding:12px 0;margin:-12px 0}
footer .casillas{display:flex}
footer .casillas i{width:14px;height:14px;border:2px solid var(--muted);margin-left:-2px}

/* 404 */
.nf{min-height:calc(100vh - 200px);min-height:calc(100svh - 200px);display:grid;grid-template-columns:1fr auto;gap:56px;align-items:center;padding:40px 0}
.nf h1{font-size:clamp(56px,8vw,112px)}
.nf .lead{margin-top:24px}
.nf .actions{margin-top:36px}
.nf .afuera{width:220px;height:auto;color:var(--line)}

/* tabletas */
@media (max-width:960px){
  .hero{grid-template-columns:1fr;gap:48px}
  .hero h1{font-size:clamp(60px,11vw,104px)}
  .patio{margin:0 auto}
  .split{grid-template-columns:1fr;gap:24px}
  .para{grid-template-columns:1fr}
  .formatos{grid-template-columns:1fr}
  .ejemplos{grid-template-columns:1fr 1fr}
  .contacto .wrap{grid-template-columns:1fr;gap:32px}
  .pasos{grid-template-columns:1fr 1fr;grid-template-areas:"head head" "s1 s2" "s3 s4" "s5 cielo"}
  .pasos .head{padding:0 0 28px}
  .pasos .cielo{align-self:stretch;height:auto;border-radius:0;border-bottom:var(--trazo) solid var(--line);margin:calc(var(--trazo)/-2)}
  .pasos .cielo{border-radius:50% 50% 0 0 / 30% 30% 0 0}
  .pasos .cielo i{top:42%}
}
/* teléfonos */
@media (max-width:640px){
  body{font-size:17px}
  .wrap{padding:0 16px}
  section{padding-top:80px}
  .top{padding-top:14px;padding-bottom:14px}
  .logo{width:116px}
  .top nav a:not(:nth-last-child(-n+2)){display:none}
  .hero{padding-top:20px;gap:36px}
  .hero h1{font-size:clamp(46px,16vw,64px)}
  .hero .lead{font-size:18px;margin-top:24px}
  .hero .actions{gap:12px;margin-top:28px}
  .btn{font-size:16px;padding:14px 15px;min-height:48px}
  .patio{--u:min(120px,25vw)}
  .eyebrow{font-size:14px}
  .ejemplo .chip{font-size:14px}
  .ejemplo .meta,.formato .dim{font-size:15px}
  .trio{grid-template-columns:1fr}
  .trio > div{padding:24px 0 8px}
  .trio > div + div{padding-left:0;border-left:0;border-top:var(--trazo) solid var(--line)}
  .pasos{grid-template-columns:1fr;grid-template-areas:"head" "s1" "s2" "s3" "s4" "s5" "cielo"}
  .pasos li{min-height:0;padding:20px 20px 24px}
  .pasos li .n{font-size:44px;margin-bottom:8px}
  .pasos li h3{font-size:23px}
  /* en columna el cielo cierra el luche por abajo, pegado a la casilla 5 */
  .pasos .cielo{height:118px;align-self:auto;border:var(--trazo) solid var(--line);border-top:0;border-radius:0 0 50% 50% / 0 0 100% 100%;margin:calc(var(--trazo)/-2)}
  .pasos .cielo i{top:22px}
  .pasos .cielo span{display:block;bottom:auto;top:70px;font-size:14px}
  .formato.v{grid-template-columns:110px 1fr;gap:20px}
  .formato.v .marco{width:110px}
  .ejemplos{grid-template-columns:1fr;gap:44px}
  .contacto{padding:64px 0;margin-top:80px}
  .nf{grid-template-columns:1fr}
  .nf .afuera{display:none}
}

/* ───────── movimiento ─────────
   Todo lo oculto vive bajo html.anim, que anim.js pone solo si no hay
   prefers-reduced-motion. Sin JS, o con movimiento reducido, todo se ve quieto. */
:root{--e-entrar:cubic-bezier(.215,.61,.355,1);--e-mover:cubic-bezier(.455,.03,.515,.955);--e-salto:cubic-bezier(.34,1.56,.64,1)}
@keyframes trazar{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
@keyframes aparecer{from{opacity:0}to{opacity:1}}
@keyframes subir{from{opacity:0;transform:translateY(.45em)}to{opacity:1;transform:none}}
@keyframes subir-px{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes caer{0%{opacity:0;transform:translateY(-60px)}55%{opacity:1;transform:translateY(0) scale(1.15,.85)}75%{transform:translateY(-10px)}100%{opacity:1;transform:none}}
@keyframes lanzar{0%{opacity:0;transform:translate(560%,120%) rotate(0)}10%{opacity:1}55%{transform:translate(240%,-160%) rotate(200deg)}88%{transform:translate(0,6%) scale(1.18,.82) rotate(340deg)}100%{opacity:1;transform:none}}
@keyframes casilla{from{opacity:0;transform:scale(.88)}to{opacity:1;transform:none}}

/* logo, una vez al cargar */
html.anim .logo-anim rect,html.anim .logo-anim .cielo{stroke-dasharray:1;animation:trazar .4s var(--e-mover) both}
html.anim .logo-anim rect{fill-opacity:0;animation:trazar .4s var(--e-mover) both,rellenar .3s linear both}
@keyframes estela{from{opacity:0;transform:scaleY(0)}to{opacity:1;transform:none}}
@keyframes rellenar{from{fill-opacity:0}to{fill-opacity:1}}
html.anim .logo-anim rect:nth-of-type(1){animation-delay:.05s,.4s}
html.anim .logo-anim rect:nth-of-type(2){animation-delay:.18s,.52s}
html.anim .logo-anim rect:nth-of-type(3){animation-delay:.31s,.64s}
html.anim .logo-anim rect:nth-of-type(4){animation-delay:.44s,.76s}
html.anim .logo-anim rect:nth-of-type(5){animation-delay:.57s,.88s}
html.anim .logo-anim .cielo{animation-delay:.7s}
html.anim .logo-anim .tejo{transform-box:fill-box;transform-origin:50% 100%;animation:caer .6s var(--e-entrar) 1s both}
html.anim .logo-anim .estela{transform-box:fill-box;transform-origin:50% 100%;animation:estela .45s var(--e-entrar) 1.25s both}
html.anim .logo-anim .word{animation:aparecer .5s var(--e-entrar) .3s both}

/* portada */
html.anim .hero h1 .l1,html.anim .hero h1 .l2{animation:subir .7s var(--e-entrar) both}
html.anim .hero h1 .l1{animation-delay:.1s}
html.anim .hero h1 .l2{animation-delay:.28s}
html.anim .hero .raya path{stroke-dasharray:1;animation:trazar .7s var(--e-mover) 1.1s both}
html.anim .hero .lead{animation:subir-px .7s var(--e-entrar) .45s both}
html.anim .hero .actions{animation:subir-px .7s var(--e-entrar) .6s both}
html.anim .patio .tiza rect,html.anim .patio .tiza path{stroke-dasharray:1;animation:trazar .42s var(--e-mover) both}
html.anim .patio .t1{animation-delay:.35s} html.anim .patio .t2{animation-delay:.55s} html.anim .patio .t3{animation-delay:.75s}
html.anim .patio .t4{animation-delay:.95s} html.anim .patio .t5{animation-delay:1.15s} html.anim .patio .t6{animation-delay:1.35s!important;animation-duration:.5s!important}
html.anim .patio .casilla{animation:casilla .45s var(--e-entrar) both}
html.anim .patio .k1{animation-delay:.6s} html.anim .patio .k2{animation-delay:.8s} html.anim .patio .k3{animation-delay:1s}
html.anim .patio .k4{animation-delay:1.2s} html.anim .patio .k5{animation-delay:1.4s}
html.anim .patio .tejo{animation:lanzar 1s var(--e-mover) 1.75s both}

/* aparecer al hacer scroll (luche.js agrega .rv y luego .in) */
html.anim .rv{opacity:0;transform:translateY(22px);transition:opacity .6s var(--e-entrar),transform .6s var(--e-entrar)}
html.anim .rv.in{opacity:1;transform:none}
html.anim .raya.h path,html.anim .contacto .raya path{stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset .8s var(--e-mover) .35s}
html.anim .in .raya path,html.anim .in.raya path{stroke-dashoffset:0}
html.anim .formato.v.rv .marco{transform:rotate(-90deg) scale(.62);transition:transform .9s var(--e-salto) .25s}
html.anim .formato.v.rv.in .marco{transform:none}
html.anim .formato.rv .marco i{transform:translateX(-60px);opacity:0;transition:transform .7s var(--e-salto) .5s,opacity .3s linear .5s}
html.anim .formato.rv.in .marco i{transform:none;opacity:1}

/* el tejo salta por los pasos */
.pasos .salta{display:none}
html.anim .pasos.saltando .salta{display:block;position:absolute;left:0;top:0;width:34px;height:34px;border-radius:50%;background:var(--tejo);box-shadow:0 4px 0 rgba(0,0,0,.25);opacity:0;z-index:2;pointer-events:none;will-change:transform}
html.anim .pasos.saltando .cielo i{opacity:0}
.pasos li::before{content:"";position:absolute;inset:0;background:var(--c,var(--amarillo));opacity:0;transition:opacity .35s var(--e-entrar);pointer-events:none}
.pasos li > *{position:relative}
.pasos li.on::before{opacity:.16}
html.anim .pasos.saltando li::after{transition:opacity .2s}
html.anim .pasos.saltando li.on::after{opacity:0}
.pasos li:nth-of-type(1){--c:var(--amarillo)} .pasos li:nth-of-type(2){--c:var(--verde)} .pasos li:nth-of-type(3){--c:var(--azul)}
.pasos li:nth-of-type(4){--c:var(--amarillo)} .pasos li:nth-of-type(5){--c:var(--verde)}
@media (min-width:961px) and (min-height:780px){
  html.anim .pin{height:calc(var(--pin-h,820px) + 170vh)}
  html.anim .pin > .pasos{position:sticky;top:max(24px,calc(50vh - var(--pin-h,820px)/2))}
  .pasos li{min-height:200px}
}