/* mkhitaryan.cc v3 · blanco, negro y gris; serif + sans; movimiento con intención */
:root{
  color-scheme:light dark;
  --bg:#F5F5F5; --ink:#0A0A0A; --ink-2:#262626; --mute:#5C5C5C; --soft:#8F8F8F; --line:#E2E2E2; --line-2:#C9C9C9; --surface:#FFFFFF; --on-ink:#FFFFFF;
  --glass:rgba(255,255,255,.75); --nav-bg:rgba(255,255,255,.72); --chip:#EDEDED; --chip-h:#E0E0E0; --vis-a:#FAFAFA; --vis-b:#F0F0F0;
  --say-off:#CFCFCF; --stripe:rgba(0,0,0,.022); --spot:rgba(255,255,255,.95); --btn-a:#2E2E2E; --btn-b:#000;
  --hero-a:#E4E4E4; --hero-b:#F2F2F2;
  /* las tres líneas se distinguen por el trazo (continua, doble, discontinua), no por el color */
  --l-ia:#0A0A0A; --l-ops:#0A0A0A; --l-b2b:#0A0A0A;
  --serif:"Lora",Georgia,serif; --sans:"Instrument Sans","Helvetica Neue",Arial,sans-serif; --ui:"Inter","Instrument Sans",Arial,sans-serif;
  --r-xl:36px; --r-l:24px; --r-m:16px; --r-s:10px;
  --sh-1:0 0 0 1px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.03);
  --sh-2:0 0 0 1px rgba(0,0,0,.09),0 18px 44px rgba(0,0,0,.08);
  --ease:cubic-bezier(.22,1,.36,1);
  --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:auto;overflow-x:hidden}
body{overflow-x:hidden}
body{margin:0;color:var(--ink);font:400 17px/1.6 var(--sans);
  background-color:var(--bg);
  background-image:repeating-linear-gradient(135deg,var(--stripe) 0 1px,transparent 1px 9px);}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}
@media (max-width:640px){.wrap{padding:0 16px}}

/* navegación flotante */
.nav{position:fixed;inset:16px 0 auto 0;z-index:50;display:flex;justify-content:center;pointer-events:none}
.nav-in{pointer-events:auto;display:flex;align-items:center;gap:28px;padding:10px 10px 10px 18px;border-radius:999px;
  background:var(--nav-bg);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);
  box-shadow:0 0 0 1px rgba(0,0,0,.06),0 10px 30px rgba(0,0,0,.08);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.brand{display:flex;align-items:center;gap:10px;font:600 15px var(--ui);text-decoration:none;letter-spacing:-.01em;white-space:nowrap}
.mono{width:30px;height:30px;border-radius:9px;background:var(--ink);color:var(--on-ink);display:grid;place-items:center;font:600 13px var(--serif);letter-spacing:.02em}
.links{display:flex;gap:24px;font:500 14px var(--ui)}
.links a{text-decoration:none;color:var(--mute);transition:color .2s}
.links a:hover,.links a[aria-current="page"]{color:var(--ink)}
.lang{font:600 12px var(--ui);letter-spacing:.04em;color:var(--mute);text-decoration:none;height:30px;min-width:38px;padding:0 10px;display:grid;place-items:center;border-radius:999px;box-shadow:inset 0 0 0 1px var(--line);transition:color .2s,box-shadow .2s}
.lang:hover{color:var(--ink);box-shadow:inset 0 0 0 1px var(--soft)}
@media (max-width:760px){.links{display:none}.nav-in{gap:14px}}

/* botones */
.btn{--mx:50%;--my:50%;position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;height:50px;padding:0 24px;border-radius:12px;
  font:500 15.5px var(--ui);text-decoration:none;cursor:pointer;border:0;overflow:hidden;isolation:isolate;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.btn-dark{color:var(--on-ink);background:linear-gradient(180deg,var(--btn-a),var(--btn-b));box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 1px 2px rgba(0,0,0,.2),0 10px 24px rgba(0,0,0,.22)}
.btn-dark::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(160px circle at var(--mx) var(--my),rgba(255,255,255,.28),transparent 60%);opacity:0;transition:opacity .3s}
.btn-dark:hover::before{opacity:1}
.btn-light{color:var(--ink);background:var(--glass);box-shadow:inset 0 0 0 1px rgba(0,0,0,.10)}
.btn-light:hover{background:var(--surface)}
.btn:hover{transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;border-radius:999px;font-size:14px}
.btn-white{color:#0A0A0A;background:linear-gradient(180deg,#fff,#E6E6E6);box-shadow:inset 0 1px 0 #fff,0 10px 30px rgba(0,0,0,.35)}

/* encabezados de sección */
.sec{padding:140px 0 0}
.sec-h{text-align:center;max-width:720px;margin:0 auto 56px}
.eyebrow{font:500 13.5px var(--ui);color:var(--mute);margin:0 0 14px}
.h2{font:500 clamp(2rem,4vw,3rem)/1.12 var(--serif);letter-spacing:-.02em;margin:0}
.sub{color:var(--mute);font-size:17.5px;margin:16px auto 0;max-width:560px}

/* portada */
.hero{padding:92px 0 0}
.hero-box{position:relative;overflow:hidden;border-radius:var(--r-xl);min-height:640px;display:grid;grid-template-columns:1.05fr .95fr;
  background:linear-gradient(135deg,var(--hero-a),var(--hero-b) 60%,#EBEBEB)}
.hero-copy{position:relative;z-index:2;padding:96px 24px 72px 72px;align-self:center}
.h1{font:500 clamp(2.5rem,4.9vw,4.25rem)/1.05 var(--serif);letter-spacing:-.03em;margin:0;max-width:none}
.h1 .t2{color:#9B9B9B;display:block}
.lede{color:var(--mute);font-size:18.5px;max-width:26em;margin:26px 0 0}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.hero-photo{position:relative;align-self:end;height:100%;min-height:640px}
.hero-photo img{position:absolute;right:-8%;top:0;bottom:0;height:100%;width:auto;max-width:none;filter:grayscale(1) contrast(1.06);mix-blend-mode:multiply;
  -webkit-mask-image:linear-gradient(to left,#000 55%,transparent 92%);mask-image:linear-gradient(to left,#000 55%,transparent 92%)}
@media (max-width:980px){.hero-box{grid-template-columns:1fr}.hero-copy{padding:72px 28px 0}.hero-photo{min-height:520px}.hero-photo img{right:50%;transform:translateX(50%);height:100%;-webkit-mask-image:none;mask-image:none}}
@media (max-width:640px){.hero-copy{padding:56px 20px 0}.hero-photo{min-height:0;height:auto;padding-top:400px}.hero-photo img{top:0;bottom:auto;height:420px}
  .hero-photo .agent{position:relative;right:auto;bottom:auto;width:auto;margin:-70px 12px 12px}.brand{font-size:14px}}

/* consola del agente */
.agent{position:absolute;z-index:3;right:28px;bottom:28px;width:min(360px,calc(100% - 40px));border-radius:20px;padding:18px 18px 16px;color:#fff;
  background:rgba(10,10,10,.66);backdrop-filter:blur(18px) saturate(1.3);-webkit-backdrop-filter:blur(18px) saturate(1.3);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.12),0 24px 60px rgba(0,0,0,.28)}
.agent-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font:500 12.5px var(--ui);color:rgba(255,255,255,.62)}
.agent-name{font:600 15.5px var(--ui);color:#fff;margin:8px 0 12px;min-height:1.4em}
.agent ol{list-style:none;margin:0;padding:0;display:grid;gap:8px;min-height:96px}
.agent li{display:flex;gap:10px;align-items:flex-start;font:400 13.5px/1.45 var(--ui);color:rgba(255,255,255,.86);opacity:0;transform:translateY(6px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
.agent li.on{opacity:1;transform:none}
.agent li i{flex:none;width:16px;height:16px;border-radius:50%;margin-top:1px;border:1.5px solid rgba(255,255,255,.45);position:relative}
.agent li.done i{background:#fff;border-color:#fff}
.agent li.done i::after{content:"";position:absolute;left:4.5px;top:2px;width:4px;height:8px;border:solid var(--ink);border-width:0 1.5px 1.5px 0;transform:rotate(45deg)}
.agent li.run i{border-top-color:#fff;animation:spin .9s linear infinite}
.agent-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid rgba(255,255,255,.12);font:500 13px var(--ui);color:rgba(255,255,255,.7)}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:#fff;color:var(--ink);font:600 12.5px var(--ui);opacity:.25;transition:opacity .4s}
.pill.on{opacity:1}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--ink);box-shadow:0 0 0 0 rgba(0,0,0,.45);animation:pulse 1.6s infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(0,0,0,0)}100%{box-shadow:0 0 0 0 rgba(0,0,0,0)}}

/* banda de herramientas */
.band{margin-top:28px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.band-track{display:flex;gap:56px;width:max-content;animation:band 38s linear infinite;padding:18px 0}
.band span{display:flex;align-items:center;gap:10px;font:600 17px var(--ui);color:var(--ink-2);white-space:nowrap;letter-spacing:-.01em}
.band svg{width:20px;height:20px}
@keyframes band{to{transform:translateX(-50%)}}

/* bento de temas */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:980px){.bento{grid-template-columns:1fr}}
.card{background:var(--surface);border-radius:var(--r-l);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-vis{height:250px;position:relative;background:linear-gradient(180deg,var(--vis-a),var(--vis-b));border-bottom:1px solid var(--line);overflow:hidden}
.card-body{padding:24px 26px 28px}
.card h3{font:600 20px var(--ui);letter-spacing:-.015em;margin:0 0 8px}
.card p{margin:0;color:var(--mute);font-size:15.5px}
.tag{display:inline-flex;align-items:center;gap:8px;font:500 13px var(--ui);color:var(--mute);margin-bottom:12px}
.tag i{width:22px;height:6px;border-radius:3px}

/* micro UI 1: registro del agente */
.log{position:absolute;inset:26px 22px;display:grid;align-content:start;gap:10px;font:500 13px/1.4 var(--ui)}
.log div{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:var(--surface);box-shadow:0 0 0 1px var(--line),0 4px 12px rgba(0,0,0,.04);opacity:0;transform:translateY(8px)}
.log div.on{opacity:1;transform:none;transition:all .5s var(--ease)}
.log b{width:8px;height:8px;border-radius:50%;background:var(--ink);flex:none}
.log .hm{background:var(--ink);color:var(--on-ink);box-shadow:none}.log .hm b{background:var(--on-ink)}
/* micro UI 2: flujo con revisión humana */
.flow{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.flow-row{display:flex;align-items:center;gap:0}
.node{position:relative;padding:8px 10px;border-radius:9px;background:var(--surface);box-shadow:0 0 0 1px var(--line),0 4px 12px rgba(0,0,0,.05);font:500 12px var(--ui);white-space:nowrap}
.node.h{background:var(--ink);color:var(--on-ink);box-shadow:0 0 0 4px rgba(0,0,0,.08)}
.wire{width:16px;height:2px;background:var(--line);position:relative;overflow:hidden}
.wire::after{content:"";position:absolute;inset:0;background:var(--ink);transform:translateX(-100%);animation:wire 2.8s var(--ease) infinite}
.wire.d2::after{animation-delay:.7s}.wire.d3::after{animation-delay:1.4s}
@keyframes wire{60%,100%{transform:translateX(100%)}}
.flow-cap{position:absolute;bottom:22px;left:0;right:0;padding:0 18px;text-align:center;font:500 12.5px var(--ui);color:var(--mute)}
/* micro UI 3: pipeline */
.pipe{position:absolute;inset:56px 26px 26px;display:grid;grid-template-columns:repeat(6,1fr);align-items:end;gap:12px}
.pipe i{display:block;border-radius:8px 8px 4px 4px;background:linear-gradient(180deg,#9B9B9B,var(--ink));height:var(--h);transform-origin:bottom;transform:scaleY(.15);transition:transform 1.1s var(--ease)}
.in .pipe i{transform:scaleY(1)}
.pipe i:nth-child(2){transition-delay:.08s}.pipe i:nth-child(3){transition-delay:.16s}.pipe i:nth-child(4){transition-delay:.24s}.pipe i:nth-child(5){transition-delay:.32s}.pipe i:nth-child(6){transition-delay:.40s}
.pipe-l{position:absolute;left:26px;top:22px;font:500 12.5px var(--ui);color:var(--mute)}

/* plano de metro */
.map-card{background:var(--surface);border-radius:var(--r-xl);box-shadow:var(--sh-1);padding:44px 40px 30px}
.map{width:100%;height:auto;display:block}
.map .track{fill:none;stroke-width:9;stroke-linecap:round;stroke-linejoin:round;transition:opacity .4s}
.map .st{fill:var(--surface);stroke:var(--ink);stroke-width:3;transition:opacity .4s}
.map .lbl{font:500 13px var(--ui);fill:var(--ink);transition:opacity .4s}
.map .hub{fill:var(--ink)}
.map .hub-t{font:600 14.5px var(--ui);fill:var(--on-ink)}
.map .hub-ring{fill:none;stroke:var(--ink);stroke-width:2;transform-box:fill-box;transform-origin:center;animation:ring 2.6s var(--ease) infinite}
@keyframes ring{0%{transform:scale(1);opacity:.35}100%{transform:scale(1.3);opacity:0}}
.map.dim-ia .g-ops,.map.dim-ia .g-b2b,.map.dim-ops .g-ia,.map.dim-ops .g-b2b,.map.dim-b2b .g-ia,.map.dim-b2b .g-ops{opacity:.12}
.map-legend{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:26px}
.map-legend button{display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border-radius:999px;border:0;background:var(--chip);font:500 14px var(--ui);color:var(--ink);cursor:pointer;transition:background .2s,color .2s}
.map-legend button:hover,.map-legend button[aria-pressed="true"]{background:var(--ink);color:var(--on-ink)}
.map-legend i{width:18px;height:6px;border-radius:3px}
.map-note{text-align:center;color:var(--mute);font-size:15.5px;margin:16px auto 0;max-width:640px;min-height:2.6em}
.map-narrow{display:none}
@media (max-width:760px){.map-wide{display:none}.map-narrow{display:block}.map-card{padding:28px 18px}}

/* capas: qué decide quién */
.layers{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
@media (max-width:980px){.layers{grid-template-columns:1fr;gap:24px}}
.tabs{display:grid;gap:10px}
.tab{text-align:left;border:0;background:transparent;border-radius:var(--r-m);padding:20px 22px;cursor:pointer;font:inherit;color:inherit;transition:background .35s var(--ease),box-shadow .35s var(--ease)}
.tab h3{display:flex;align-items:center;gap:12px;font:600 18.5px var(--ui);margin:0}
.tab h3 i{width:12px;height:12px;border-radius:4px;background:var(--line);transition:background .3s}
.tab p{margin:8px 0 0 24px;color:var(--mute);font-size:15.5px;max-height:0;overflow:hidden;opacity:0;transition:max-height .5s var(--ease),opacity .4s}
.tab[aria-selected="true"]{background:var(--surface);box-shadow:var(--sh-1)}
.tab[aria-selected="true"] h3 i{background:var(--ink)}
.tab[aria-selected="true"] p{max-height:140px;opacity:1}
.stack{position:relative;height:520px;perspective:1400px}
@media (max-width:640px){.stack{height:400px}}
.stack-in{position:absolute;inset:0;transform-style:preserve-3d;transform:rotateX(58deg) rotateZ(-38deg);transition:transform .8s var(--ease)}
.layer{position:absolute;left:50%;top:50%;width:300px;height:210px;margin:-105px 0 0 -150px;border-radius:22px;transform-style:preserve-3d;
  background:var(--glass);box-shadow:0 0 0 1px rgba(0,0,0,.08),0 30px 60px rgba(0,0,0,.10);
  transition:transform .45s var(--ease),background .5s,box-shadow .5s}
@media (max-width:640px){.layer{width:230px;height:160px;margin:-80px 0 0 -115px}}
.layer span{position:absolute;left:18px;top:14px;font:600 13px var(--ui);color:var(--mute)}
.layer .grid{position:absolute;inset:44px 18px 18px;border-radius:12px;background-image:linear-gradient(rgba(0,0,0,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.06) 1px,transparent 1px);background-size:22px 22px}
.layer{transform:translateZ(calc(var(--z,0px) * var(--sp,1) + var(--lift,0px)))}
.layer[data-k="0"]{--z:150px}.layer[data-k="1"]{--z:50px}.layer[data-k="2"]{--z:-50px}.layer[data-k="3"]{--z:-150px}
.layer.on{background:var(--ink);box-shadow:0 0 0 1px var(--ink),0 40px 80px rgba(0,0,0,.30)}
.layer.on span{color:var(--on-ink)}.layer.on .grid{background-image:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px)}
.layer.on{--lift:40px}

/* autoevaluación (bloque oscuro) */
.dark{position:relative;overflow:hidden;border-radius:var(--r-xl);background:#000 var(--grain);color:#fff;padding:96px 72px;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.dark::before{content:"";position:absolute;width:700px;height:700px;right:-200px;top:-260px;border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.13),transparent);animation:float 12s ease-in-out infinite alternate}
.dark::after{content:"";position:absolute;width:520px;height:520px;left:-160px;bottom:-280px;border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.06),transparent);animation:float 14s ease-in-out infinite alternate-reverse}
@keyframes float{to{transform:translate(-60px,50px)}}
.dark>*{position:relative;z-index:1}
.dark .h2{color:#fff}
.dark p{color:rgba(255,255,255,.68)}
.dark .eyebrow{color:rgba(255,255,255,.55)}
@media (max-width:980px){.dark{grid-template-columns:1fr;padding:64px 28px}}
.stations{display:flex;align-items:center}
.stations em{width:24px;height:24px;border-radius:50%;border:3px solid #fff;background:#000;flex:none;transition:background .4s}
.stations em.on{background:#fff}
.stations span{flex:1;height:5px;background:rgba(255,255,255,.18);position:relative;overflow:hidden}
.stations span::after{content:"";position:absolute;inset:0;background:#fff;transform:translateX(-101%);transition:transform 1s var(--ease)}
.stations span.on::after{transform:none}
.stations-l{display:flex;justify-content:space-between;margin-top:12px;font:500 13.5px var(--ui);color:rgba(255,255,255,.6)}

/* notas */
.notes{display:grid;grid-template-columns:repeat(var(--cols,3),1fr);gap:20px}
@media (max-width:980px){.notes{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.notes{grid-template-columns:1fr}}
.note{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:230px;padding:26px;border-radius:var(--r-l);background:var(--surface);box-shadow:var(--sh-1);text-decoration:none;transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.note:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.note h3{font:500 22px/1.25 var(--serif);letter-spacing:-.01em;margin:14px 0 0}
.note .st{font:500 13px var(--ui);color:var(--soft);margin-top:22px}

/* sobre mí */
.about{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center;max-width:900px;margin:0 auto}
.about img{width:150px;height:150px;border-radius:28px;object-fit:cover;object-position:50% 20%;filter:grayscale(1)}
.about p{font:400 clamp(1.3rem,2.2vw,1.65rem)/1.5 var(--serif);margin:0;letter-spacing:-.01em}
@media (max-width:640px){.about{grid-template-columns:1fr;gap:20px}.about img{width:110px;height:110px}}

/* pie */
.foot{margin-top:140px;padding:72px 0 40px;border-top:1px solid var(--line)}
.foot-big{font:500 clamp(2.2rem,5vw,4rem)/1.05 var(--serif);letter-spacing:-.03em;margin:0;max-width:14ch}
.foot-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;margin-top:40px;color:var(--mute);font:500 14.5px var(--ui)}
.foot-row nav{display:flex;gap:22px}
.foot-row a{text-decoration:none}.foot-row a:hover{color:var(--ink)}

/* revelado con desenfoque */
[data-r]{opacity:0;filter:blur(6px);transform:translateY(16px);transition:opacity .7s var(--ease),filter .7s var(--ease),transform .7s var(--ease)}
[data-r].in{opacity:1;filter:none;transform:none}
.w{display:inline-block;opacity:0;filter:blur(8px);transform:translateY(.22em);transition:opacity .65s var(--ease),filter .65s var(--ease),transform .65s var(--ease)}
.words-in .w{opacity:1;filter:none;transform:none}
.no-js [data-r],.no-js .w{opacity:1;filter:none;transform:none}

/* páginas interiores (artículo y autoevaluación) */
.page{padding:132px 0 0}
.article{max-width:720px;margin:0 auto}
.article .h1{font-size:clamp(2.2rem,4.6vw,3.4rem);max-width:none}
.dek{font:400 1.3rem/1.5 var(--serif);color:var(--mute);margin:20px 0 0}
.prose{font:400 1.16rem/1.75 var(--serif);margin-top:40px;color:var(--ink-2)}
.prose p{margin:0 0 1.2em}
.prose h2{font:600 1.45rem var(--ui);letter-spacing:-.015em;margin:2.1em 0 .6em;color:var(--ink)}
.prose blockquote{margin:1.8em 0;padding:24px 28px;border-radius:var(--r-m);background:var(--surface);box-shadow:var(--sh-1);font-size:1.32rem;line-height:1.5;color:var(--ink)}
.prose ul{padding-left:1.1em}.prose li{margin:.4em 0}
.draft{display:inline-block;margin-top:18px;padding:6px 12px;border-radius:999px;background:var(--surface);box-shadow:0 0 0 1px var(--line);font:500 13px var(--ui);color:var(--mute)}
.todo{font:400 15px/1.55 var(--ui);color:var(--mute);background:var(--surface);border:1px dashed var(--line-2);border-radius:12px;padding:12px 16px;margin:0 0 1.2em}

/* autoevaluación (página) */
.quiz{max-width:780px;margin:0 auto}
.progress{display:flex;align-items:center;margin:0 0 36px}
.progress em{width:16px;height:16px;border-radius:50%;border:2.5px solid var(--ink);background:var(--bg);flex:none;transition:all .4s var(--ease)}
.progress em.done{background:var(--ink)}
.progress em.now{background:var(--ink);border-color:var(--ink);box-shadow:0 0 0 6px rgba(0,0,0,.10)}
.progress span{flex:1;height:3px;background:var(--line)}.progress span.done{background:var(--ink)}
.q-count{color:var(--mute);font:500 14.5px var(--ui);margin:0 0 10px}
.q-title{font:500 clamp(1.7rem,3.4vw,2.4rem)/1.18 var(--serif);letter-spacing:-.02em;margin:0 0 28px}
.opts{display:grid;gap:12px;border:0;padding:0;margin:0}
.opt{display:grid;grid-template-columns:22px 1fr;gap:14px;align-items:start;padding:18px 20px;border-radius:14px;background:var(--surface);box-shadow:var(--sh-1);cursor:pointer;font:400 16.5px/1.5 var(--sans);transition:transform .3s var(--ease),box-shadow .3s}
.opt:hover{transform:translateY(-1px);box-shadow:var(--sh-2)}
.opt input{appearance:none;width:20px;height:20px;border-radius:50%;border:2px solid var(--line-2);margin:2px 0 0;background:var(--surface);transition:all .2s}
.opt input:checked{border:6px solid var(--ink)}
.opt:has(input:checked){box-shadow:0 0 0 2px var(--ink),var(--sh-1)}
.q-nav{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:30px}
.btn[disabled]{opacity:.35;cursor:not-allowed;transform:none}
.res-level{font:500 clamp(2.2rem,5vw,3.6rem)/1.05 var(--serif);letter-spacing:-.03em;margin:8px 0 0}
.quiz .stations em{border-color:var(--ink);background:var(--bg)}.quiz .stations em.on{background:var(--ink)}
.quiz .stations span{background:var(--line)}.quiz .stations span::after{background:var(--ink)}
.quiz .stations-l{color:var(--mute)}
.res-line{margin:32px 0 10px}
.lead{font:400 1.2rem/1.6 var(--serif);margin:22px 0 0}
.dims{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:16px}
.dims li{display:grid;grid-template-columns:210px 1fr 44px;gap:14px;align-items:center;font:500 15px var(--ui)}
@media (max-width:640px){.dims li{grid-template-columns:1fr 44px}.dims .bar{grid-column:1/-1;grid-row:2}}
.dims .bar{height:8px;border-radius:4px;background:var(--line);overflow:hidden}
.dims .bar i{display:block;height:100%;border-radius:4px;transform-origin:left;animation:grow 1.1s var(--ease) both}
@keyframes grow{from{transform:scaleX(0)}}
.recs{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:14px}
.recs li{padding:20px 22px;border-radius:14px;background:var(--surface);box-shadow:var(--sh-1);font:400 1.06rem/1.6 var(--serif)}
.recs b{font:600 16px var(--ui);display:block;margin-bottom:4px}
.quiz h2{font:500 1.8rem var(--serif);letter-spacing:-.02em;margin:0}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  [data-r],.w{opacity:1!important;filter:none!important;transform:none!important}
  .agent li{opacity:1;transform:none}
}

/* notas: filtros y tarjetas sin enlace */
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:-22px 0 40px}
.chips button{display:inline-flex;align-items:center;gap:9px;padding:10px 16px;border-radius:999px;border:0;background:var(--chip);font:500 14px var(--ui);color:var(--ink);cursor:pointer;transition:background .25s,color .25s}
.chips button:hover{background:var(--chip-h)}
.chips button[aria-pressed="true"]{background:var(--ink);color:var(--on-ink)}
.chips i{width:16px;height:6px;border-radius:3px}
.note-d{color:var(--mute);font-size:15px;margin:10px 0 0}
.note.soon{cursor:default}.note.soon:hover{transform:none;box-shadow:var(--sh-1)}

/* artículo: progreso, metadatos y siguiente */
.read-bar{position:fixed;left:0;top:0;height:3px;width:100%;background:var(--ink);transform-origin:left;transform:scaleX(0);z-index:60}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px}
.meta .chip{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:var(--surface);box-shadow:0 0 0 1px var(--line);font:500 13px var(--ui);color:var(--mute)}
.copy{border:0;cursor:pointer}
.copy:hover{color:var(--ink)}
.next{display:block;margin:72px auto 0;max-width:720px;padding:30px 32px;border-radius:var(--r-l);background:#000 var(--grain);color:#fff;text-decoration:none;position:relative;overflow:hidden;transition:transform .5s var(--ease)}
.next:hover{transform:translateY(-3px)}
.next::before{content:"";position:absolute;width:420px;height:420px;right:-140px;top:-200px;border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.14),transparent)}
.next small{position:relative;font:500 13px var(--ui);color:rgba(255,255,255,.6)}
.next b{position:relative;display:block;font:500 clamp(1.4rem,2.6vw,1.9rem)/1.25 var(--serif);margin-top:8px;letter-spacing:-.015em}

/* transiciones entre páginas (navegadores compatibles) */
@view-transition{navigation:auto}
.nav{view-transition-name:nav}
::view-transition-old(root){animation:vt-out .35s var(--ease) both}
::view-transition-new(root){animation:vt-in .55s var(--ease) both}
@keyframes vt-out{to{opacity:0;filter:blur(6px);transform:translateY(-8px)}}
@keyframes vt-in{from{opacity:0;filter:blur(8px);transform:translateY(12px)}}

/* luz que sigue al cursor en la portada */
.hero-box::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;opacity:0;transition:opacity .6s;
  background:radial-gradient(520px circle at var(--hx,30%) var(--hy,30%),rgba(255,255,255,.55),transparent 60%)}
.hero-box:hover::after{opacity:1}
.hero-photo img,.agent{will-change:transform}
@media (prefers-reduced-motion:reduce){::view-transition-old(root),::view-transition-new(root){animation:none}}

/* ===== v3: monocromo y gráficos dinámicos ===== */

/* muestra de cada línea: continua, doble (vías) y discontinua */
i.sw{display:inline-block;flex:none;width:24px;height:6px;border-radius:3px;color:var(--ink);background:currentColor;vertical-align:middle}
i.sw-ops{height:8px;border-radius:0;background:linear-gradient(currentColor,currentColor) 0 0/100% 2px no-repeat,linear-gradient(currentColor,currentColor) 0 100%/100% 2px no-repeat}
i.sw-b2b{height:4px;border-radius:0;background:repeating-linear-gradient(90deg,currentColor 0 6px,transparent 6px 10px)}
[aria-pressed="true"] i.sw{color:var(--on-ink)}

/* plano: trazos por línea, trenes y revelado con el scroll */
.map .t-ia{stroke:var(--ink);stroke-width:9}
.map .t-ops{stroke:var(--ink);stroke-width:12}
.map .rail{fill:none;stroke:var(--surface);stroke-width:5;stroke-linecap:round;stroke-linejoin:round;transition:opacity .4s}
.map .t-b2b{stroke:var(--ink);stroke-width:7;stroke-dasharray:16 11;stroke-linecap:butt}
.map .train rect{fill:var(--ink);stroke:var(--surface);stroke-width:2.5}
.map .ghost{fill:var(--ink)}
.map .hub-g{opacity:0;transform:scale(.92);transform-box:fill-box;transform-origin:center;transition:opacity .6s var(--ease),transform .6s var(--ease)}
.hub-on .map .hub-g{opacity:1;transform:none}
.map-legend button{background:var(--chip)}

/* bento: luz que sigue al cursor */
.card-vis::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .4s;background:radial-gradient(240px circle at var(--cx,50%) var(--cy,50%),var(--spot),transparent 70%)}
.card:hover .card-vis::before{opacity:1}

/* bento: el flujo se para en la revisión hasta que decide una persona */
.flow-row{position:relative}
.pkt{position:absolute;left:0;top:calc(100% + 16px);width:10px;height:10px;margin-left:-5px;border-radius:50%;background:var(--ink);box-shadow:0 0 0 3px var(--surface),0 0 0 4px rgba(0,0,0,.12);transition:transform .7s var(--ease)}
.node.h.wait{animation:wait 1.6s var(--ease)}
@keyframes wait{0%,100%{box-shadow:0 0 0 4px rgba(0,0,0,.08)}50%{box-shadow:0 0 0 9px rgba(0,0,0,.14)}}

/* bento: gráfico del pipeline que se dibuja al entrar */
.spark{position:absolute;left:22px;right:22px;top:52px;bottom:42px;width:calc(100% - 44px);height:calc(100% - 94px)}
.sp-grid path{stroke:var(--line);stroke-width:1;vector-effect:non-scaling-stroke}
.sp-line{fill:none;stroke:var(--ink);stroke-width:2.4;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.8s var(--ease)}
.in .sp-line{stroke-dashoffset:0}
.sp-area{opacity:0;transition:opacity 1.2s .7s}
.in .sp-area{opacity:1}
.sp-dot{fill:var(--ink);stroke:var(--surface);stroke-width:2.5;opacity:0;transition:opacity .5s 1.5s}
.in .sp-dot{opacity:1}
.sp-x{position:absolute;left:22px;right:22px;bottom:16px;display:flex;justify-content:space-between;font:500 11.5px var(--ui);color:var(--soft)}

/* frase central que se ilumina palabra a palabra con el scroll */
.say-sec{padding-top:150px}
.say{font:500 clamp(2rem,4.6vw,3.9rem)/1.16 var(--serif);letter-spacing:-.028em;max-width:22ch;margin:0 auto;text-align:center;text-wrap:balance}
.say .sy{color:var(--say-off);transition:color .3s}
.say .sy.lit{color:var(--ink)}

/* notas: publicadas en grande y el resto en una lista compacta */
.note.pub{min-height:270px}
.note.pub h3{font-size:clamp(1.45rem,2.2vw,1.75rem)}
.soon-box{grid-column:1/-1;padding:22px 26px 10px;border-radius:var(--r-l);box-shadow:inset 0 0 0 1px var(--line)}
.soon-h{font:500 13.5px var(--ui);color:var(--mute);margin:0 0 6px}
.soon-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);column-gap:36px}
.soon-list li{display:grid;grid-template-columns:30px 1fr auto;align-items:center;gap:12px;padding:14px 0;border-top:1px solid var(--line);font:500 1.02rem/1.35 var(--serif);color:var(--ink-2)}
.soon-list small{font:500 12.5px var(--ui);color:var(--soft);white-space:nowrap}
@media (max-width:760px){.soon-list{grid-template-columns:1fr}.soon-list small{display:none}}
@media (max-width:640px){.notes{grid-template-columns:1fr}}

/* autoevaluación: radar de las cinco dimensiones */
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;margin-top:30px}
.res-grid .dims{margin:0}
@media (max-width:760px){.res-grid{grid-template-columns:1fr}}
.radar{width:100%;height:auto;overflow:visible}
.radar .rg{fill:none;stroke:var(--line);stroke-width:1}
.radar .ax{stroke:var(--line);stroke-width:1}
.radar .rd{fill:var(--ink);fill-opacity:.08;stroke:var(--ink);stroke-width:2.2;stroke-linejoin:round;transform-box:view-box;transform-origin:150px 150px;animation:rgrow 1.2s var(--ease) both .2s}
.radar .rdot{fill:var(--ink);stroke:var(--surface);stroke-width:2;animation:fadein .4s both 1.1s}
.radar .rl{font:500 11.5px var(--ui);fill:var(--mute)}
@keyframes rgrow{from{transform:scale(0)}}
@keyframes fadein{from{opacity:0}}
.dims .bar i{background:var(--ink)!important}
.res-line .stations em{transition:background .4s var(--ease)}

/* infografías de los artículos */
.fig{margin:2.6em 0;padding:26px 28px 22px;border-radius:var(--r-l);background:var(--surface);box-shadow:var(--sh-1);font:400 15px/1.5 var(--ui)}
@media (min-width:1000px){.fig{margin-left:-70px;margin-right:-70px}}
@media (max-width:640px){.fig{padding:20px 16px 16px;margin-left:-4px;margin-right:-4px}}
.fig-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-bottom:20px;font:500 13.5px var(--ui);color:var(--mute)}
.fig-chips{display:flex;flex-wrap:wrap;gap:8px}
.fig-chips button{border:0;cursor:pointer;padding:8px 14px;border-radius:999px;background:var(--chip);font:500 13.5px var(--ui);color:var(--ink);transition:background .2s,color .2s}
.fig-chips button:hover{background:var(--chip-h)}
.fig-chips button[aria-pressed="true"]{background:var(--ink);color:var(--on-ink)}
.fig-out{margin:16px 0 0;font:500 15px/1.55 var(--ui);color:var(--ink-2);min-height:3.1em}
.fig figcaption{margin-top:8px;padding-top:12px;border-top:1px solid var(--line);font:400 13.5px/1.5 var(--ui);color:var(--mute)}
/* artículo 1: plano de decisión */
.rule-map{width:100%;height:auto;display:block;overflow:visible}
.rule-map .fn{transition:opacity .4s}
.rule-map .fn:not(.on){opacity:.42}
.rule-map .fn rect{fill:var(--surface);stroke:var(--line-2);stroke-width:1.5;transition:fill .35s,stroke .35s}
.rule-map .k-q rect{stroke-dasharray:5 5}
.rule-map .k-out rect{fill:var(--chip)}
.rule-map .fn.on rect{stroke:var(--ink);stroke-width:2}
.rule-map .fn.on.k-out rect,.rule-map .fn.on.k-person rect{fill:var(--ink)}
.rule-map .fn-t{font:600 15px var(--ui);fill:var(--ink);transition:fill .35s}
.rule-map .fn-s{font:500 12px var(--ui);fill:var(--mute)}
.rule-map .fn.on.k-out .fn-t,.rule-map .fn.on.k-person .fn-t{fill:var(--on-ink)}
.rule-map .fn.on.k-out .fn-s{fill:var(--on-ink);fill-opacity:.72}
.rule-map .fe-b{fill:none;stroke:var(--line-2);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.rule-map .fe-a{fill:none;stroke:var(--ink);stroke-width:4;stroke-linecap:round;stroke-linejoin:round}
.rule-map .fe-t{font:500 12.5px var(--ui);fill:var(--soft);transition:fill .3s}
.rule-map .fe.on .fe-t{fill:var(--ink)}
.rule-map .fe-dot{fill:var(--ink);stroke:var(--surface);stroke-width:3}
.rule-steps{display:none;list-style:none;margin:0;padding:0}
@media (max-width:760px){
  .rule-map{display:none}
  .rule-steps{display:grid}
  .rule-steps li{position:relative;padding:0 0 18px 30px;opacity:0;transform:translateY(6px);transition:opacity .45s var(--ease) var(--d),transform .45s var(--ease) var(--d)}
  .rule-steps li::before{content:"";position:absolute;left:5px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--surface);box-shadow:inset 0 0 0 3px var(--ink)}
  .rule-steps li::after{content:"";position:absolute;left:10px;top:20px;bottom:0;width:2.5px;background:var(--ink)}
  .rule-steps li.last{padding-bottom:0}.rule-steps li.last::after{display:none}
  .rule-steps li.last b{display:inline-block;padding:6px 12px;margin-top:-4px;border-radius:10px;background:var(--ink);color:var(--on-ink)}
  .rule-steps.in li{opacity:1;transform:none}
  .rule-steps b{display:block;font:600 15px/1.35 var(--ui);color:var(--ink)}
  .rule-steps small{display:block;font:500 13px var(--ui);color:var(--mute);margin-top:2px}
}
/* artículo 2: ciclo de un mercado nuevo */
.cycle{width:100%;max-width:560px;height:auto;display:block;margin:0 auto;overflow:visible}
.cy-track{fill:none;stroke:var(--ink);stroke-width:12}
.cy-rail{fill:none;stroke:var(--surface);stroke-width:5}
.cy-hub rect{fill:var(--ink)}
.cy-hub-t{font:600 15px var(--ui);fill:var(--on-ink)}
.cs{cursor:pointer;outline:none}
.cs-o{fill:var(--surface);stroke:var(--ink);stroke-width:3;transition:fill .3s,stroke-width .2s}
.cs-i{display:none}
.cs-n{font:600 12.5px var(--ui);fill:var(--ink);transition:fill .3s;pointer-events:none}
.cs.on .cs-o{fill:var(--ink)}
.cs.on .cs-n{fill:var(--on-ink)}
.cs-t{font:500 15px var(--ui);fill:var(--mute);transition:fill .3s}
.cs.on .cs-t,.cs:hover .cs-t{fill:var(--ink)}
.cs:focus-visible .cs-o{stroke-width:5}
.cy-train rect{fill:var(--ink);stroke:var(--surface);stroke-width:3}
.cy-out b{font-weight:600;color:var(--ink)}

.meta a.chip{text-decoration:none;transition:color .2s,box-shadow .2s}.meta a.chip:hover{color:var(--ink);box-shadow:0 0 0 1px var(--soft)}

.spark stop{stop-color:var(--ink)}

/* modo oscuro automático: la misma web, invertida */
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0C0C0C; --ink:#F2F2F2; --ink-2:#D4D4D4; --mute:#A6A6A6; --soft:#7C7C7C; --line:#272727; --line-2:#3E3E3E; --surface:#161616; --on-ink:#0A0A0A;
    --glass:rgba(255,255,255,.06); --nav-bg:rgba(22,22,22,.72); --chip:#232323; --chip-h:#2D2D2D; --vis-a:#1A1A1A; --vis-b:#131313;
    --say-off:#383838; --stripe:rgba(255,255,255,.022); --spot:rgba(255,255,255,.07); --btn-a:#FFFFFF; --btn-b:#D6D6D6;
    --sh-1:0 0 0 1px rgba(255,255,255,.07); --sh-2:0 0 0 1px rgba(255,255,255,.12),0 18px 44px rgba(0,0,0,.5);
  }
  .nav-in{box-shadow:0 0 0 1px rgba(255,255,255,.08),0 10px 30px rgba(0,0,0,.5)}
  /* la portada sigue siendo una tarjeta clara: la foto en blanco y negro necesita su fondo */
  .hero-box{--ink:#0A0A0A;--ink-2:#262626;--mute:#5C5C5C;--soft:#8F8F8F;--line:#E2E2E2;--surface:#FFFFFF;--on-ink:#FFFFFF;--glass:rgba(255,255,255,.75);--btn-a:#2E2E2E;--btn-b:#000;color:var(--ink)}
  .dark,.next{box-shadow:0 0 0 1px rgba(255,255,255,.09)}
  .layer{box-shadow:0 0 0 1px rgba(255,255,255,.10),0 30px 60px rgba(0,0,0,.5)}
  .layer .grid{background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px)}
  .layer.on .grid{background-image:linear-gradient(rgba(0,0,0,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.10) 1px,transparent 1px)}
  .log div{box-shadow:0 0 0 1px var(--line)}
  .node{box-shadow:0 0 0 1px var(--line)}
  .about img,.who img{filter:grayscale(1) brightness(.92)}
}