/* Vissual Argument: orden de la serie + tipografía editorial + movimiento. Tipografías alojadas en el sitio (SIL OFL 1.1, ver fonts/OFL.txt) */
@font-face{font-family:"Source Serif 4";src:url(fonts/source-serif-4-latin-wght-normal.woff2) format("woff2");font-weight:200 900;font-display:swap}
@font-face{font-family:"Inter";src:url(fonts/inter-latin-wght-normal.woff2) format("woff2");font-weight:100 900;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url(fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}

:root{
  --paper:#fbfaf7; --surface:#fffefb; --ink:#1a1d21; --muted:#5a5f63; --rule:#dcd8cf; --accent:#a8541c;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"Inter","Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:2px}
.wrap{max-width:1160px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:8px 12px;z-index:9}
.skip:focus{left:12px}

/* Encabezado */
.top{display:flex;align-items:center;gap:24px;padding-block:22px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:20px;letter-spacing:-.01em;text-decoration:none}
.mark{height:1.45em;width:auto;flex:none;overflow:visible}
.mark-bar{fill:var(--accent);transform-box:fill-box;transform-origin:left center;transition:transform .4s var(--ease)}
.brand:hover .mark-bar{transform:scaleX(1.12)}
.js .brand .mark-bar{animation:va-bar .9s .2s var(--ease) both}
@keyframes va-bar{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.nav{display:flex;gap:22px;margin-left:auto;font-size:14.5px;font-weight:500}
.nav a,.langs a{text-decoration:none;color:var(--muted);transition:color .2s}
.nav a{background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:color .2s,background-size .3s var(--ease)}
.nav a:hover{color:var(--ink);background-size:100% 1px}
.langs{display:flex;gap:4px;font-family:var(--mono);font-size:12.5px}
.langs a{padding:4px 7px;border:1px solid transparent;border-radius:3px}
.langs a:hover{color:var(--ink)}
.langs a[aria-current]{color:var(--ink);border-color:var(--rule);background:var(--surface)}

/* Portada */
.hero{padding-block:56px 40px;border-bottom:1px solid var(--rule)}
.kicker{font-family:var(--mono);font-size:13px;color:var(--accent);margin:0 0 20px}
h1{font-family:var(--serif);font-weight:700;font-size:clamp(60px,11.5vw,150px);line-height:.9;letter-spacing:-.035em;margin:0 0 28px}
.lede{font-family:var(--serif);font-size:clamp(21px,2.5vw,28px);line-height:1.3;color:var(--muted);max-width:28em;margin:0 0 28px}
.schema{display:block;width:100%;max-width:760px;height:auto;overflow:visible;color:var(--accent)}
.schema path{fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round}
.schema .limit{stroke-dasharray:3 8;opacity:.75}
.schema .pts circle{fill:currentColor}
.schema .pts .q{fill:var(--paper);stroke:currentColor;stroke-width:2.2}
.schema .lbl text{font-family:var(--mono);font-size:13px;fill:var(--muted)}
.schema .lbl .lim{fill:var(--accent)}

/* Bloques */
.block{padding-block:72px;border-bottom:1px solid var(--rule)}
h2{font-family:var(--serif);font-weight:600;font-size:clamp(32px,4vw,46px);letter-spacing:-.02em;line-height:1.05;margin:0 0 18px}
h3{font-family:var(--serif);font-weight:600}
.sub{color:var(--muted);margin:0 0 36px;max-width:60ch}
.prose,.prose p{font-family:var(--serif);font-size:19px;line-height:1.62;max-width:62ch}
.prose p{margin:0 0 16px}
.prose a{text-decoration-color:var(--accent);text-underline-offset:3px}
.two{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:56px;align-items:start}

/* Comparación: infografía · visualización · argumento */
.cmp{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:2px solid var(--ink);margin-top:40px}
.cmp-item{padding:22px 24px 26px 0;position:relative}
.cmp-item + .cmp-item{padding-left:24px;border-left:1px solid var(--rule)}
.cmp-item h3{font-size:20px;margin:0 0 8px;color:var(--muted)}
.cmp-item p{margin:0;color:var(--muted);font-size:15px}
.cmp-item.is-va{background:var(--ink);padding-left:24px}
.cmp-item.is-va h3,.cmp-item.is-va p{color:var(--paper)}

/* Argumentos: cada uno con su color y su motivo */
.args{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.arg{display:flex;flex-direction:column;border-top:3px solid var(--accent);padding-top:0}
.arg-art{display:block;color:var(--accent);background:var(--tint);padding:24px 22px 20px;margin-bottom:18px;transition:background-color .3s}
.arg-art svg{display:block;width:100%;height:auto;max-height:130px;transition:transform .5s var(--ease)}
@media (hover:hover){.arg:hover .arg-art svg{transform:scale(1.04)}}
.arg-kind{font-family:var(--mono);font-size:12px;color:var(--accent);margin:0 0 6px}
.arg-title{font-size:25px;line-height:1.12;letter-spacing:-.01em;margin:0 0 12px;text-wrap:balance}
.arg-title a{text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .35s var(--ease)}
.arg-title a:hover{background-size:100% 1px}
.arg-q{font-family:var(--serif);font-size:17.5px;line-height:1.45;color:var(--ink);margin:0 0 14px}
.arg-facts{margin:0 0 14px;padding:0;list-style:none;font-size:14px;color:var(--muted)}
.arg-facts li{padding:6px 0;border-top:1px solid var(--rule)}
.arg-meta{margin:auto 0 0;padding-top:8px;display:flex;flex-direction:column;gap:3px;font-family:var(--mono);font-size:11.5px;color:var(--muted);overflow-wrap:anywhere}
.arg-meta a{color:var(--muted);text-underline-offset:2px}
.arg-open{margin-top:16px;align-self:flex-start;display:inline-flex;gap:8px;align-items:center;font-weight:600;font-size:14.5px;text-decoration:none;color:var(--accent);border-bottom:1px solid currentColor;padding-bottom:2px}
.arg-open span{transition:transform .3s var(--ease)}
.arg-open:hover span{transform:translateX(4px)}

/* Origen, autora */
.note{background:var(--surface);border:1px solid var(--rule);border-left:3px solid var(--accent);padding:20px 22px}
.note h3{margin:0 0 8px;font-size:19px}
.note p{margin:0;color:var(--muted);font-size:15px}
.person{font-family:var(--serif);font-weight:600;font-size:28px;letter-spacing:-.01em;margin:0 0 10px}
.roles{margin:0;padding:0;list-style:none;color:var(--muted)}
.roles li{padding:7px 0;border-top:1px solid var(--rule)}
.links-h{font-size:19px;margin:6px 0 10px}
.links{margin:0;padding:0;list-style:none}
.links li{display:grid;grid-template-columns:84px minmax(0,1fr);gap:10px;padding:7px 0;border-top:1px solid var(--rule);font-size:15px}
.links span{font-family:var(--mono);font-size:12px;color:var(--muted);padding-top:2px}
.links a{overflow-wrap:anywhere;text-decoration-color:var(--rule);text-underline-offset:3px;transition:text-decoration-color .2s}
.links a:hover{text-decoration-color:var(--accent)}

.foot{padding-block:36px 56px;color:var(--muted);font-size:13.5px}
.foot p{margin:0 0 6px;max-width:80ch}
.foot-mark{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:20px;color:var(--ink)}
.foot .ai{font-size:12.5px}

/* Movimiento: solo con JavaScript y sin preferencia de movimiento reducido; sin JS todo se ve completo */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--d,0) * 120ms)}
.js .reveal.in{opacity:1;transform:none}
.js .cmp .cmp-item{opacity:0;transform:translateY(10px);transition:opacity .6s var(--ease),transform .6s var(--ease),background-color .6s;transition-delay:calc(300ms + var(--d) * 220ms)}
.js .cmp.in .cmp-item{opacity:1;transform:none}
.js .cmp .is-va{background:transparent}
.js .cmp.in .is-va{background:var(--ink);transition-delay:calc(300ms + var(--d) * 220ms),calc(300ms + var(--d) * 220ms),1.3s}
.js .cmp .is-va h3,.js .cmp .is-va p{color:var(--muted);transition:color .6s 1.3s}
.js .cmp.in .is-va h3,.js .cmp.in .is-va p{color:var(--paper)}

.js .draw .ln{stroke-dasharray:1;stroke-dashoffset:1}
.js .draw.in .ln{animation:va-draw 1.6s var(--ease) forwards}
@keyframes va-draw{to{stroke-dashoffset:0}}
.js .draw circle,.js .draw rect{opacity:0;transform:scale(.4);transform-box:fill-box;transform-origin:center;transition:opacity .5s var(--ease),transform .5s var(--ease);transition-delay:calc(500ms + var(--i,0) * 110ms)}
.js .draw.in circle,.js .draw.in rect{opacity:1;transform:none}
.js .draw.in .loose{animation-delay:1.1s}
.js .schema .limit{opacity:0;transition:opacity .9s 1.5s}
.js .schema.in .limit{opacity:.75}
.js .schema .lbl text{opacity:0;transition:opacity .6s;transition-delay:calc(600ms + var(--i,0) * 220ms)}
.js .schema.in .lbl text{opacity:1}
.js .schema .pts .q{transition-delay:.1s}

@media (max-width:960px){
  .args{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .two{grid-template-columns:minmax(0,1fr);gap:32px}
}
@media (max-width:680px){
  .nav{display:none}
  .langs{margin-left:auto}
  .hero{padding-block:36px 32px}
  .block{padding-block:48px}
  .args{grid-template-columns:minmax(0,1fr)}
  .cmp{grid-template-columns:minmax(0,1fr)}
  .cmp-item,.cmp-item + .cmp-item{padding:18px 0;border-left:0;border-top:1px solid var(--rule)}
  .cmp-item:first-child{border-top:0}
  .cmp-item.is-va{padding:18px 16px}
  .prose,.prose p{font-size:18px}
  .schema .lbl text{font-size:20px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{
  *{transition:none!important}
  .js .reveal,.js .cmp .cmp-item,.js .draw circle,.js .draw rect,.js .schema .lbl text{opacity:1!important;transform:none!important}
  .js .draw .ln{stroke-dashoffset:0!important;animation:none!important}
  .js .schema .limit{opacity:.75!important}
  .js .cmp .is-va{background:var(--ink)!important}
  .js .cmp .is-va h3,.js .cmp .is-va p{color:var(--paper)!important}
  .nav,.langs,.skip{display:none}
}