/* Shared structure. Each demo sets the tokens and its own look in dN.css */
:root{--gutter:clamp(18px, 4.4vw, 64px);--radius:18px}
*,*::before,*::after{box-sizing:border-box}
@view-transition{navigation:auto}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.62;overflow-x:clip;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,ul,ol,figure,fieldset,legend{margin:0;padding:0;border:0}
ul,ol{list-style:none}
a{color:inherit}
h1,h2,h3{font-family:var(--display);text-wrap:balance}
h1 em,h2 em{font-style:normal;color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
#scene{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.no-3d #scene{display:none}
.nav,main,footer{position:relative;z-index:1}
.wrap{width:min(1280px, 100%);margin-inline:auto;padding-inline:var(--gutter)}
.narrow{width:min(860px, 100%)}
.mono{font-family:var(--mono);font-size:13px;letter-spacing:.06em}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.eyebrow a{color:inherit}
.lede{font-size:clamp(18px, 1.5vw, 21px);line-height:1.5;color:var(--soft);max-width:560px}
.sub{font-size:clamp(17px, 1.3vw, 19px);color:var(--soft);max-width:620px}
.head{display:grid;gap:16px;margin-bottom:clamp(30px, 5vh, 56px)}
.head h2{font-size:var(--h2)}
.head.center{justify-items:center;text-align:center}

/* navigation */
.nav{position:sticky;top:0;z-index:5;background:var(--nav-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.nav .wrap{display:flex;align-items:center;gap:28px;min-height:72px}
.logo{text-decoration:none;font-family:var(--display);font-size:24px;line-height:1;display:inline-flex}
.logo b{font-weight:inherit}
.logo i{font-style:normal;color:var(--accent)}
.nav nav{display:flex;align-items:center;gap:clamp(16px, 2.2vw, 30px);margin-left:auto}
.nav nav a{text-decoration:none;font-size:15px;font-weight:500;color:var(--soft)}
.nav nav a:hover,.nav nav a[aria-current]{color:var(--ink)}
.nav nav .nav-cta{padding:9px 18px;border-radius:999px;background:var(--btn-bg);color:var(--btn-ink)}
.nav nav .nav-cta:hover{color:var(--btn-ink)}
.burger{display:none;margin-left:auto;width:44px;height:44px;background:none;border:0;padding:12px 10px;color:var(--ink);cursor:pointer}
.burger i{display:block;height:2px;background:currentColor;transition:transform .25s}
.burger i + i{margin-top:8px}
.burger[aria-expanded="true"] i:first-child{transform:translateY(5px) rotate(45deg)}
.burger[aria-expanded="true"] i:last-child{transform:translateY(-5px) rotate(-45deg)}

/* buttons */
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:999px;font:600 16px/1 var(--body);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .2s, background .2s, color .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--btn-bg);color:var(--btn-ink)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.arrow{width:16px;height:16px;flex:none}

/* sections and cards */
.band{padding-block:clamp(64px, 11vh, 120px)}
.band + .band{border-top:1px solid var(--line)}
.solid{position:relative;background:var(--bg-solid);color:var(--ink-solid);--ink:var(--ink-solid);--soft:var(--soft-solid);--line:var(--line-solid);--muted:var(--muted-solid);--accent:var(--accent-solid);--card:var(--card-solid)}
.grid3{display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:18px}
.grid4{display:grid;grid-template-columns:repeat(4, minmax(0, 1fr));gap:18px}
.grid3 li,.grid4 li,.serv,.guia{display:grid;align-content:start;gap:10px;padding:26px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);text-decoration:none}
.grid3 h3,.grid4 h3,.serv h3,.guia h3{font-size:clamp(20px, 1.7vw, 23px);line-height:1.2}
.grid3 p,.grid4 p,.serv p,.guia p{color:var(--soft);font-size:16px;line-height:1.5}
.serv{position:relative;padding-right:52px;transition:transform .25s, border-color .25s}
.serv .arrow{position:absolute;top:28px;right:24px;color:var(--accent);transition:transform .25s}
.serv:hover{transform:translateY(-3px);border-color:var(--accent)}
.serv:hover .arrow{transform:translateX(4px)}
.guia{transition:transform .25s, border-color .25s}
.guia:hover{transform:translateY(-3px);border-color:var(--accent)}
.guia .mono{color:var(--muted)}
.pasos{display:grid;grid-template-columns:repeat(4, minmax(0, 1fr));gap:18px}
.pasos li{display:grid;align-content:start;gap:8px;padding-top:18px;border-top:2px solid var(--accent)}
.pasos .mono{color:var(--accent)}
.pasos h3{font-size:clamp(22px, 2vw, 28px)}
.pasos p{color:var(--soft);font-size:16px;line-height:1.5}
.puntos{display:grid;gap:2px;counter-reset:none}
.puntos li{display:flex;align-items:baseline;gap:16px;padding:7px 0;font-size:clamp(18px, 1.6vw, 22px);font-family:var(--display)}
.puntos b{font-weight:inherit}
.puntos .mono{width:26px;color:var(--muted);text-align:right}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips a{display:inline-flex;align-items:center;gap:10px;padding:12px 20px;border-radius:999px;border:1px solid var(--line);text-decoration:none;font-weight:500}
.chips a:hover{border-color:var(--accent);color:var(--accent)}
.final{padding-block:clamp(90px, 18vh, 190px);text-align:center}
.final .wrap{display:grid;justify-items:center;gap:16px}
.final h2{font-size:var(--h2)}
.final .cta-row{justify-content:center;margin-top:14px}

/* faq */
.faq{display:grid}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;gap:20px;padding:20px 0;font-family:var(--display);font-size:clamp(19px, 1.5vw, 22px);line-height:1.3;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:12px;height:12px;margin-top:7px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(225deg)}
.faq p{padding-bottom:22px;color:var(--soft);max-width:680px}

/* inner pages */
.phero{padding-block:clamp(70px, 15vh, 150px) clamp(60px, 12vh, 110px);min-height:min(66vh, 620px);display:flex;align-items:flex-end}
.phero .wrap{display:grid;gap:18px}
.phero h1{font-size:var(--h1-inner);max-width:15em}
.ficha{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:clamp(22px, 3vw, 44px);padding-block:clamp(36px, 6vh, 60px);border-top:1px solid var(--line);scroll-margin-top:80px}
.ficha:first-child{border-top:0;padding-top:0}
.ficha h2,.etapa h2,.rubro h2{font-size:clamp(26px, 2.8vw, 38px);line-height:1.12;margin-bottom:12px}
.ficha-col h3,.rubro h3{margin-bottom:10px;font:500 13px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ticks{display:grid;gap:8px}
.ticks li{position:relative;padding-left:22px;font-size:16px;line-height:1.45}
.ticks li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;border-radius:50%;background:var(--accent)}
.mide{grid-column:1 / -1;padding:14px 18px;border-radius:12px;background:var(--card);font-size:16px}
.mide b{font-weight:600}
.etapa{display:grid;grid-template-columns:70px minmax(0, 1fr);gap:18px;padding-block:clamp(30px, 5vh, 50px);border-top:1px solid var(--line)}
.etapa:first-child{border-top:0;padding-top:0}
.etapa .mono{font-size:18px;color:var(--accent)}
.etapa .sub{margin-bottom:10px}
.etapa p + p{max-width:680px}
.etapa .mide{margin-top:16px;max-width:680px}
.rubro{display:grid;grid-template-columns:1fr 1.1fr 1.1fr;gap:clamp(22px, 3vw, 44px);padding-block:clamp(30px, 5vh, 50px);border-top:1px solid var(--line);scroll-margin-top:80px}
.rubro:first-child{border-top:0;padding-top:0}
.preguntas{display:grid;gap:8px}
.preguntas li{padding:10px 14px;border-radius:12px;background:var(--card);font-size:15.5px;line-height:1.4}
.cruces{display:grid;grid-template-columns:repeat(2, minmax(0, 1fr));gap:0 30px}
.cruces li{padding:14px 0;border-top:1px solid var(--line);font-family:var(--display);font-size:20px}

/* article */
.prose{width:min(760px, 100%)}
.prose h2{margin:44px 0 12px;font-size:clamp(25px, 2.5vw, 33px);line-height:1.15}
.prose p{margin-bottom:14px;color:var(--soft)}
.resumen{padding:24px 26px;border-radius:var(--radius);background:var(--card)}
.resumen h2{margin:0 0 12px;font-size:21px}
.numerada{counter-reset:paso;display:grid;gap:12px;margin-bottom:14px}
.numerada li{counter-increment:paso;position:relative;padding-left:42px;color:var(--soft)}
.numerada li::before{content:counter(paso);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:var(--on-accent);font:500 13px/1 var(--mono)}

/* quiz and forms */
.quiz{display:grid;gap:12px}
.quiz-bar{position:sticky;top:76px;z-index:2;height:6px;border-radius:9px;background:var(--line);overflow:hidden}
.quiz-bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}
.q{padding:24px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line)}
.q legend{float:left;width:100%;margin-bottom:14px;font-family:var(--display);font-size:clamp(20px, 1.8vw, 24px);line-height:1.25}
.q legend .mono{display:block;margin-bottom:6px;color:var(--muted);font-family:var(--mono);text-transform:uppercase}
.opts{clear:both;display:flex;flex-wrap:wrap;gap:8px}
.opts input{position:absolute;opacity:0}
.opts span{display:block;padding:10px 20px;border-radius:999px;border:1px solid var(--line);cursor:pointer;font-weight:500;font-size:15.5px;transition:background .15s, color .15s}
.opts input:checked + span{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.opts input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px}
.resultado{display:grid;gap:14px;margin-top:30px;padding:clamp(24px, 4vw, 44px);border-radius:var(--radius);background:var(--card);border:1px solid var(--accent)}
.resultado h3{margin-top:8px;font-size:22px}
.nota{display:flex;align-items:baseline;gap:6px;font-family:var(--display);line-height:1}
.nota b{font-size:clamp(80px, 12vw, 150px);font-weight:inherit;color:var(--accent)}
.nota span{font-size:28px;color:var(--muted)}
.aviso{font-size:14px;color:var(--muted)}
.aviso a{color:var(--accent);font-weight:600}
.form .trampa{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.contacto{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(30px, 6vw, 90px)}
.contacto h2{font-size:clamp(25px, 2.5vw, 33px);margin-bottom:8px}
.contacto .sub{margin-bottom:26px}
.form{display:grid;gap:16px;align-content:start;justify-items:start}
.form label{display:grid;gap:6px;width:100%;font-size:15px;font-weight:500}
.form input,.form textarea{width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-weight:400;resize:vertical}

/* footer */
footer{background:var(--bg-foot);color:var(--ink-foot)}
footer .wrap{display:grid;grid-template-columns:1fr auto;gap:22px;padding-block:44px}
footer p{color:var(--muted-foot);font-size:15px;margin-top:8px}
footer nav{display:flex;flex-wrap:wrap;gap:8px 24px}
footer nav a{text-decoration:none;font-size:15px}
footer nav a:hover{text-decoration:underline}
.legal{grid-column:1 / -1;font-size:14px}

/* motion */
.word{display:inline-block;white-space:nowrap}
.js .chars .ch{display:inline-block;opacity:0;transform:translateY(.42em) rotate(5deg);transition:opacity .5s, transform .7s cubic-bezier(.2,.8,.2,1);transition-delay:calc(var(--i) * var(--step))}
.js .chars.in .ch{opacity:1;transform:none}
.js .reveal:not(.chars){opacity:0;transform:translateY(22px);transition:opacity .7s, transform .7s cubic-bezier(.2,.8,.2,1)}
.js .reveal.in:not(.chars){opacity:1;transform:none}

@media (max-width: 1000px){
  .grid3,.grid4,.pasos{grid-template-columns:repeat(2, minmax(0, 1fr))}
  .ficha,.rubro{grid-template-columns:1fr 1fr}
  .ficha > div:first-child,.rubro h2{grid-column:1 / -1}
  .contacto{grid-template-columns:minmax(0, 1fr)}
}
@media (max-width: 860px){
  .burger{display:block}
  .nav nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;padding:8px var(--gutter) 18px;margin:0;background:var(--menu-bg);border-bottom:1px solid var(--line)}
  .nav nav.open{display:flex}
  .nav nav a{padding:13px 0;font-size:18px}
  .nav nav .nav-cta{margin-top:8px;text-align:center;padding:14px}
}
@media (max-width: 620px){
  body{font-size:16px}
  .grid3,.grid4,.pasos,.ficha,.rubro,.cruces{grid-template-columns:minmax(0, 1fr)}
  .etapa{grid-template-columns:minmax(0, 1fr);gap:6px}
  footer .wrap{grid-template-columns:minmax(0, 1fr)}
  .btn{width:100%}
  .form .btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .js .reveal:not(.chars),.js .chars .ch{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important}
}

/* Demo 1, Monumento: chrome numeral on a mirror floor, cinema lower-thirds */
:root{
  --bg:#0F2149;--ink:#EDF2FF;--soft:#BAC7E2;--muted:#9AABCB;--line:rgba(176,200,255,.17);--accent:#8FB8FF;--on-accent:#0B1A3B;
  --btn-bg:#EDF2FF;--btn-ink:#0B1A3B;--card:rgba(14,28,62,.66);--nav-bg:rgba(15,33,73,.28);--menu-bg:#102350;
  --bg-solid:#102350;--ink-solid:#EDF2FF;--soft-solid:#BAC7E2;--line-solid:rgba(176,200,255,.14);--muted-solid:#9AABCB;--accent-solid:#8FB8FF;--card-solid:rgba(143,184,255,.07);
  --bg-foot:#0B1A3B;--ink-foot:#EDF2FF;--muted-foot:#9AABCB;
  --display:'Archivo',system-ui,sans-serif;--body:'Archivo',system-ui,sans-serif;--mono:'JetBrains Mono',ui-monospace,monospace;
  --h2:clamp(34px,4.9vw,70px);--h1-inner:clamp(38px,6vw,88px)
}
.no-3d body{background:radial-gradient(90% 60% at 60% 0,#22375F,transparent 70%),var(--bg)}
h1,h2{font-weight:800;font-stretch:112%;letter-spacing:-.018em;line-height:1;text-transform:uppercase}
h3{font-weight:700;letter-spacing:-.005em}
.head h2{line-height:1.02}
.logo{font-weight:900;font-stretch:125%;letter-spacing:.14em;font-size:21px}
.btn-ghost{background:rgba(10,19,38,.35)}
.faq summary,.cruces li,.q legend{font-weight:600}

/* lower third: the numeral stands in the space above */
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);column-gap:clamp(24px,5vw,80px);align-content:end;min-height:calc(100svh - 72px);padding-bottom:clamp(26px,6vh,58px)}
.hero .eyebrow{grid-column:1 / -1;margin-bottom:14px}
.hero h1{grid-row:2 / span 2;font-size:clamp(36px,6.3vw,98px)}
.hero .lede{grid-column:2;align-self:end;font-size:clamp(17px,1.3vw,19px)}
.hero .cta-row{grid-column:2;margin-top:20px}

.cambio{padding-block:clamp(70px,16vh,170px)}
.cambio .head{max-width:640px}
.cambio .plain{grid-template-columns:minmax(0,1fr);max-width:600px}
.cambio .plain li,.glass .serv{background:var(--card);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}

.tunel{height:420vh}
.tunel-stick{position:sticky;top:72px;min-height:calc(100svh - 72px);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center}
.tunel-text{max-width:600px}
.tunel-text .head{margin-bottom:26px}
.has3d .puntos.scrub li{opacity:.34;transition:opacity .35s}
.has3d .puntos.scrub li.on{opacity:1}
.puntos li.on .mono{color:var(--accent)}
.puntos li{font-weight:700;font-stretch:112%;text-transform:uppercase;font-size:clamp(17px,1.5vw,21px);letter-spacing:.01em}

.orbita{padding-block:clamp(70px,20vh,210px) clamp(70px,14vh,150px)}
.metodo{min-height:150vh;display:flex;align-items:flex-end;padding-bottom:clamp(50px,12vh,120px)}
.metodo .wrap{width:min(1280px,100%)}
.metodo .head{max-width:620px}
.pasos h3{text-transform:uppercase;font-weight:800;font-stretch:112%}
.metodo .pasos li{padding:18px;background:var(--card);border-radius:0 0 14px 14px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.final{min-height:100svh;display:flex;align-items:flex-end;padding-block:0 clamp(40px,6vh,64px)}
.final .wrap{width:min(980px,100%)}
.phero h1{max-width:11.5em}
.phero .lede{max-width:520px}

@media (max-width:1000px){
  .hero .wrap{grid-template-columns:minmax(0,1fr)}
  .hero h1{grid-row:auto;font-size:clamp(36px,9.4vw,72px)}
  .hero .lede{grid-column:1;margin-top:16px;max-width:560px}
  .hero .cta-row{grid-column:1}
}
@media (max-width:760px),(max-height:680px){
  .tunel{height:auto;padding-block:60px}
  .tunel-stick{position:static;min-height:0;grid-template-columns:minmax(0,1fr)}
  .puntos{grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 14px}
  .puntos li{gap:10px;font-size:15px}
  .puntos .mono{width:18px}
}
@media (max-width:760px){
  body:not([data-page="inicio"]) .phero{padding-top:min(38svh,300px);min-height:0}
  .cambio .plain{max-width:none}
  .metodo{min-height:120vh}
  .final .wrap{padding-block:26px;border-radius:var(--radius);background:var(--card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
}
.no-3d .tunel{height:auto;padding-block:70px}
.no-3d .tunel-stick{position:static;min-height:0}
.no-3d .metodo{min-height:0}
.no-3d .hero .wrap{min-height:70svh}
.no-3d .final{min-height:0;padding-block:90px}

/* Demo 4, on top of Monumento: the cobalt and yellow of Señal, with a countdown in dots */
:root{
  --bg:#102568;--ink:#F2F5FF;--soft:#C8D4F4;--muted:#A9B8E2;--line:rgba(190,208,255,.2);--accent:#FFD84D;--on-accent:#0B1250;
  --btn-bg:#FFD84D;--btn-ink:#0B1250;--card:rgba(11,26,84,.64);--nav-bg:rgba(13,30,92,.34);--menu-bg:#102568;
  --bg-solid:#F3F5FF;--ink-solid:#0B1250;--soft-solid:#3C4680;--line-solid:rgba(11,18,80,.14);--muted-solid:#555F8C;--accent-solid:#1229C9;--card-solid:#fff;
  --bg-foot:#0B1250;--ink-foot:#fff;--muted-foot:#B9C3FB;
  --h2:clamp(34px,5.2vw,78px);--h1-inner:clamp(36px,4.9vw,74px)
}
.no-3d body{background:radial-gradient(90% 60% at 60% 0,#2A46B8,transparent 70%),var(--bg)}
.solid{--on-accent:#fff;--btn-bg:#1229C9;--btn-ink:#fff}
.btn-ghost{background:rgba(11,26,84,.42)}
.solid .btn-ghost{background:none}
.logo b{font-weight:900}

.puntos .dot{flex:none;width:10px;height:10px;border-radius:50%;border:2px solid var(--accent);transition:background .3s,box-shadow .3s}
.puntos li.on .dot{background:var(--accent);box-shadow:0 0 14px rgba(255,216,77,.7)}
.has3d .puntos.scrub li{opacity:.42}
.has3d .puntos.scrub li.on{opacity:1}
.tunel-text,.tunel-stick .puntos{padding:clamp(20px,2.3vw,32px);border-radius:var(--radius);background:var(--card);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.tunel-text{max-width:520px}
.tunel-text h2{font-size:clamp(30px,3.6vw,54px)}
.tunel-text .head{margin-bottom:20px}
.orbita .head{max-width:640px}
.phero h1{max-width:10.2em}
@media (max-width:760px){
  .cambio .head,.orbita .head{padding:20px;border-radius:var(--radius);background:var(--card);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
}
/* On short windows the hero keeps room above the headline, so the word never sits behind the text. */
.hero .wrap{padding-top:max(210px,26vh)}