/* Tokens: nombres tomados de la materia (placa, silicio, sonda de multímetro) */
@font-face{font-family:"Schibsted Grotesk";src:url(/fonts/schibsted.woff2) format("woff2");font-weight:400 900;font-style:normal;font-display:swap}
@font-face{font-family:"Schibsted Grotesk";src:url(/fonts/schibsted-italic.woff2) format("woff2");font-weight:400 900;font-style:italic;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(/fonts/jbmono-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(/fonts/jbmono-500.woff2) format("woff2");font-weight:500;font-display:swap}

:root{
  color-scheme:dark;
  --silicio:#070708;   /* fondo */
  --placa:#0f0f10;     /* superficie elevada */
  --traza:#242426;     /* líneas, bordes */
  --estano:#9b9b97;    /* texto secundario (7.1:1 sobre silicio) */
  --anodo:#ededea;     /* texto principal */
  --sonda:#e5484d;     /* único acento: punta roja del multímetro */
  --sans:"Schibsted Grotesk",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease-out:cubic-bezier(.23,1,.32,1);
  --ease-in-out:cubic-bezier(.77,0,.175,1);
  --r:2px;
  --gut:clamp(16px,4vw,48px);
  --max:1240px;
  --z-bg:0;--z-content:1;--z-nav:20;--z-bar:30;
}
/* El brief fija fondo negro: la página es oscura en ambos esquemas */
@media (prefers-color-scheme:light){:root{color-scheme:dark}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--silicio);color:var(--anodo);font-family:var(--sans);font-size:17px;line-height:1.55;font-feature-settings:"ss01","tnum" 0;overflow-x:clip}
::selection{background:var(--anodo);color:var(--silicio)}
img,svg,canvas{display:block;max-width:100%}
a{color:inherit;text-underline-offset:.22em;text-decoration-thickness:1px}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
button,a,[role=button]{touch-action:manipulation}
button,.btn{-webkit-user-select:none;user-select:none}
:focus-visible{outline:2px solid var(--sonda);outline-offset:3px;border-radius:var(--r)}
html{scrollbar-color:#3a3a3d var(--silicio)}
code,.mono{font-family:var(--mono);font-size:.86em}
.skip{position:absolute;left:-999px;top:8px;background:var(--anodo);color:var(--silicio);padding:10px 14px;z-index:99}
.skip:focus{left:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:.6em;min-height:48px;padding:0 22px;border-radius:var(--r);font-weight:600;font-size:16px;text-decoration:none;white-space:nowrap;transition:transform 140ms var(--ease-out),background-color 200ms ease,color 200ms ease,border-color 200ms ease}
.btn:active{transform:scale(.97)}
.btn--solid{background:var(--anodo);color:var(--silicio)}
.btn--line{border:1px solid #4a4a4d;color:var(--anodo)}
@media (hover:hover) and (pointer:fine){
  .btn--solid:hover{background:#fff}
  .btn--line:hover{border-color:var(--anodo)}
}

/* Navegación */
.nav{position:fixed;inset:0 0 auto 0;z-index:var(--z-nav);padding-top:env(safe-area-inset-top);background:linear-gradient(var(--silicio) 40%,rgba(7,7,8,0));}
.nav__in{display:flex;align-items:center;justify-content:space-between;height:68px}
.mark{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:-.01em}
.mark svg{width:26px;height:26px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0;align-items:center}
.nav ul a{text-decoration:none;color:var(--estano);font-size:15px;transition:color 180ms ease}
.nav ul a.btn{color:var(--silicio)}
@media (hover:hover) and (pointer:fine){.nav ul a:not(.btn):hover{color:var(--anodo)}}
@media (max-width:820px){.nav ul li:not(:last-child){display:none}}
@media (max-width:820px){.nav ul .btn{display:none}}

/* Hero */
.hero{position:relative;min-height:100svh;display:grid;align-items:end;padding:120px 0 clamp(48px,9vh,96px)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:var(--z-bg)}
.hero .wrap{position:relative;z-index:var(--z-content);width:100%}
.hero h1{margin:0;font-weight:800;letter-spacing:-.04em;line-height:.95;font-size:clamp(46px,10.4vw,148px);max-width:12ch;text-wrap:balance}
.hero h1 .ln{display:block}
.hero h1 .ch{position:relative;display:inline-block;white-space:pre;transition:color 260ms var(--ease-out)}
.hero h1 .ch::after{content:attr(data-hex);position:absolute;left:50%;top:52%;transform:translate(-50%,-50%);font-family:var(--mono);font-weight:500;font-size:.24em;letter-spacing:0;color:var(--estano);opacity:0;transition:opacity 160ms ease}
.hero h1 .ch.is-hex{color:transparent}
.hero h1 .ch.is-hex::after{opacity:1}
.hero h1 .ch.is-hot{color:var(--sonda)}
.hero__sub{margin:28px 0 0;max-width:46ch;font-size:clamp(17px,1.6vw,21px);color:var(--estano)}
.hero__sub strong{color:var(--anodo);font-weight:600}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero [data-in]{opacity:0;transform:translateY(14px);filter:blur(4px)}
.is-ready .hero [data-in]{opacity:1;transform:none;filter:none;transition:opacity 700ms var(--ease-out),transform 900ms var(--ease-out),filter 700ms var(--ease-out);transition-delay:calc(var(--d,0) * 1ms)}

/* Secciones */
section{position:relative}
.sec{padding:clamp(88px,14vh,160px) 0}
.h2{font-size:clamp(34px,5.4vw,72px);line-height:1;letter-spacing:-.035em;font-weight:800;margin:0 0 20px;max-width:16ch;text-wrap:balance}
.lead{color:var(--estano);font-size:clamp(17px,1.5vw,20px);max-width:58ch;margin:0}

/* Momento firma: descenso por capas */
.descent{height:560vh}
.descent__stick{position:sticky;top:0;height:100svh;overflow:hidden;display:grid;grid-template-columns:minmax(300px,calc(380px + max(0px,(100vw - var(--max)) / 2))) 1fr;gap:0}
.descent canvas{width:100%;height:100%}
.descent__panel{display:flex;flex-direction:column;justify-content:center;padding:96px 0 48px max(var(--gut),calc((100vw - var(--max)) / 2 + var(--gut)));position:relative;z-index:2}
.descent__panel h2{font-size:clamp(30px,3.4vw,46px);line-height:1.02;letter-spacing:-.03em;margin:0 0 14px;font-weight:800}
.descent__panel>p{color:var(--estano);margin:0 0 26px;max-width:34ch}
.layers{list-style:none;margin:0;padding:0;border-left:1px solid var(--traza)}
.layers li{position:relative}
.layers button{display:block;width:100%;text-align:left;padding:12px 0 12px 20px;min-height:44px;color:var(--estano);transition:color 240ms ease}
.layers button b{display:block;font-size:19px;font-weight:700;letter-spacing:-.01em}
.layers button span{display:block;font-size:14.5px;max-height:0;opacity:0;overflow:hidden;transition:max-height 420ms var(--ease-out),opacity 300ms ease}
.layers li::before{content:"";position:absolute;left:-1px;top:12px;bottom:12px;width:1px;background:var(--anodo);transform:scaleY(0);transform-origin:top;transition:transform 420ms var(--ease-out)}
.layers li.on button{color:var(--anodo)}
.layers li.on button span{max-height:90px;opacity:1;color:var(--estano)}
.layers li.on::before{transform:none}
.descent__meter{position:absolute;right:var(--gut);bottom:28px;font-family:var(--mono);font-size:12.5px;color:var(--estano);z-index:2}
@media (max-width:860px){
  .descent{height:520vh}
  .descent__stick{grid-template-columns:1fr;grid-template-rows:1fr auto}
  .descent__panel{order:2;grid-row:2;padding:48px var(--gut) calc(28px + 72px + env(safe-area-inset-bottom));justify-content:end;background:linear-gradient(rgba(7,7,8,0),var(--silicio) 30%)}
  .descent__panel>p{display:none}
  .descent__panel h2{font-size:26px;margin-bottom:10px}
  .descent canvas{position:absolute;inset:0;order:1}
  .layers{display:flex;border-left:0;border-top:1px solid var(--traza);overflow-x:auto;scrollbar-width:none}
  .layers li{flex:1 0 auto}
  .layers li::before{left:0;right:0;top:-1px;bottom:auto;height:1px;width:auto;transform:scaleX(0);transform-origin:left}
  .layers li.on::before{transform:none}
  .layers button{padding:12px 14px 0 0}
  .layers button b{font-size:15px}
  .layers button span{display:none}
  .descent__meter{display:none}
  .descent__cap{display:block!important}
}
.descent__cap{display:none;color:var(--estano);font-size:15px;margin:10px 0 0;min-height:3em}
.no-motion .descent{height:auto}
.no-motion .descent__stick{position:relative;height:auto;min-height:100svh}

/* Ahora */
.now{display:grid;grid-template-columns:1.35fr 1fr;gap:1px;background:var(--traza);border:1px solid var(--traza);margin-top:56px}
.now>*{background:var(--silicio);padding:clamp(24px,3vw,40px)}
.now h3{font-size:clamp(24px,2.4vw,32px);letter-spacing:-.02em;margin:0 0 10px;line-height:1.1}
.now p{color:var(--estano);margin:0 0 16px;max-width:52ch}
.now .tags{display:flex;flex-wrap:wrap;gap:6px;margin:18px 0 0;padding:0;list-style:none}
.now .tags li{font-family:var(--mono);font-size:12.5px;color:var(--anodo);border:1px solid var(--traza);padding:4px 8px;border-radius:var(--r)}
.now__main{grid-row:span 2;display:flex;flex-direction:column}
.now__main canvas{width:100%;height:auto;aspect-ratio:16/9;margin-top:auto;border-top:1px solid var(--traza)}
.now__ctf{display:flex;flex-direction:column;justify-content:space-between}
.now__count{font-size:clamp(56px,7vw,96px);font-weight:800;letter-spacing:-.05em;line-height:.9;font-variant-numeric:tabular-nums}
.now__count small{font-size:.24em;letter-spacing:0;font-weight:500;color:var(--estano);margin-left:.4em}
.now__strip{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--traza);padding:0}
.now__strip>div{background:var(--silicio);padding:clamp(22px,2.6vw,32px)}
.now__strip h3{font-size:21px}
@media (max-width:900px){.now{grid-template-columns:1fr}.now__main{grid-row:auto}.now__strip{grid-template-columns:1fr}}

/* Hecho: bitácora agrupada */
.built{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(28px,4vw,56px) clamp(20px,3vw,40px);margin-top:64px}
.group{grid-column:span 6}
.group:nth-child(1){grid-column:1/8}
.group:nth-child(2){grid-column:8/13}
.group:nth-child(3){grid-column:1/6}
.group:nth-child(4){grid-column:6/13}
.group h3{font-size:15px;font-weight:600;color:var(--estano);margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--traza);display:flex;justify-content:space-between;align-items:baseline}
.group h3 .mono{color:#878783;font-size:12px}
.group ul{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.group li b{display:block;font-size:19px;letter-spacing:-.01em;line-height:1.25;margin-bottom:4px}
.group li span{color:var(--estano);font-size:15.5px}
.group svg.fig{width:100%;height:auto;margin:6px 0 22px;color:var(--estano)}
@media (max-width:900px){.group,.group:nth-child(n){grid-column:1/-1}}

/* Chip de habilidades */
.chip{display:grid;grid-template-columns:1fr minmax(240px,340px) 1fr;align-items:stretch;margin-top:64px}
.pins{list-style:none;margin:0;padding:18px 0;display:flex;flex-direction:column;justify-content:space-between;gap:6px}
.pins button{position:relative;display:flex;align-items:center;gap:12px;width:100%;min-height:44px;font-size:15px;color:var(--estano);transition:color 180ms ease}
.pins--l button{justify-content:flex-end;text-align:right}
.pins button::after{content:"";flex:0 0 clamp(28px,4vw,56px);height:6px;border:1px solid #4a4a4d;border-radius:1px;transition:background-color 180ms ease,border-color 180ms ease}
.pins--r button{flex-direction:row-reverse;justify-content:flex-end;text-align:left}
.pins button[aria-pressed=true]{color:var(--anodo)}
.pins button[aria-pressed=true]::after{background:var(--sonda);border-color:var(--sonda)}
@media (hover:hover) and (pointer:fine){.pins button:hover{color:var(--anodo)}.pins button:hover::after{border-color:var(--anodo)}}
.pins .n{font-family:var(--mono);font-size:11.5px;color:#878783;min-width:2ch}
.chip__body{position:relative;background:var(--placa);border:1px solid #333336;border-radius:3px;padding:44px 28px 28px;display:flex;flex-direction:column;justify-content:center;min-height:520px}
.chip__body::before{content:"";position:absolute;top:-1px;left:50%;width:34px;height:17px;transform:translateX(-50%);border:1px solid #333336;border-top:0;border-radius:0 0 34px 34px;background:var(--silicio)}
.chip__dot{position:absolute;top:22px;left:22px;width:8px;height:8px;border-radius:50%;border:1px solid #55555a}
.chip__part{font-family:var(--mono);font-size:12px;color:#878783;margin:0 0 18px}
.chip__body h3{font-size:clamp(24px,2.4vw,30px);letter-spacing:-.02em;line-height:1.1;margin:0 0 10px}
.chip__body p{margin:0;color:var(--estano);font-size:15.5px}
.chip__swap{transition:opacity 220ms ease,filter 220ms ease,transform 260ms var(--ease-out)}
.chip__swap.is-out{opacity:0;filter:blur(3px);transform:translateY(4px)}
@media (max-width:900px){
  .chip{grid-template-columns:1fr;gap:0}
  .chip__body{order:-1;min-height:0;margin-bottom:8px}
  .pins{padding:0}
  .pins--l button,.pins--r button{flex-direction:row-reverse;justify-content:flex-end;text-align:left}
  .pins button::after{flex-basis:22px}
}

/* Webs para negocios */
.biz{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,6vw,96px);align-items:start}
.biz ol{list-style:none;counter-reset:s;margin:0;padding:0;border-top:1px solid var(--traza)}
.biz ol li{counter-increment:s;display:grid;grid-template-columns:56px 1fr;gap:6px 18px;padding:24px 0;border-bottom:1px solid var(--traza)}
.biz ol li::before{content:counter(s);font-family:var(--mono);color:var(--estano);font-size:14px;padding-top:4px;grid-row:span 2}
.biz ol b{font-size:21px;letter-spacing:-.015em;line-height:1.2}
.biz ol span{color:var(--estano);font-size:15.5px}
.biz__note{margin-top:28px;color:var(--estano);font-size:15.5px;max-width:44ch}
@media (max-width:900px){.biz{grid-template-columns:1fr}}

/* Contacto */
.contact{padding:clamp(96px,16vh,180px) 0 clamp(72px,10vh,120px);border-top:1px solid var(--traza)}
.mail{display:block;font-size:clamp(28px,6.6vw,92px);font-weight:800;letter-spacing:-.045em;line-height:1;text-decoration:none;margin:18px 0 30px;overflow-wrap:anywhere;transition:color 200ms ease}
@media (hover:hover) and (pointer:fine){.mail:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px}}
.contact__row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.copy .lbl{display:inline-grid}
.copy .lbl>*{grid-area:1/1;transition:opacity 180ms ease,transform 220ms var(--ease-out),filter 180ms ease}
.copy .lbl .b{opacity:0;transform:translateY(6px);filter:blur(2px)}
.copy.done .lbl .a{opacity:0;transform:translateY(-6px);filter:blur(2px)}
.copy.done .lbl .b{opacity:1;transform:none;filter:none}
.links{display:flex;flex-wrap:wrap;gap:8px 28px;margin:40px 0 0;padding:0;list-style:none;color:var(--estano)}
.slot{border:1px dashed #55555a;padding:2px 8px;border-radius:var(--r);font-family:var(--mono);font-size:13px;color:var(--estano)}

footer{padding:28px 0 calc(28px + env(safe-area-inset-bottom));border-top:1px solid var(--traza);color:var(--estano);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}

/* Barra fija de contacto en móvil */
.bar{position:fixed;left:0;right:0;bottom:0;z-index:var(--z-bar);display:none;gap:8px;padding:10px var(--gut) calc(10px + env(safe-area-inset-bottom));background:rgba(7,7,8,.92);border-top:1px solid var(--traza);transform:translateY(110%);transition:transform 320ms var(--ease-out)}
.bar.on{transform:none}
.bar .btn{flex:1;justify-content:center}
@media (max-width:820px){.bar{display:flex}body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}}

/* Revelado por sección (una vez) */
.rv{opacity:0;transform:translateY(18px)}
.rv.in{opacity:1;transform:none;transition:opacity 700ms var(--ease-out),transform 800ms var(--ease-out);transition-delay:calc(var(--i,0) * 60ms)}
.no-js .rv{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero [data-in],.rv{opacity:1!important;transform:none!important;filter:none!important;transition:opacity 200ms ease!important}
  .layers li::before,.layers button span,.chip__swap,.bar{transition-duration:1ms!important}
}