/* ── Tokens ───────────────────────────────────────────────
   Claro por defecto. El oscuro se define dos veces: por
   preferencia del sistema (salvo que el usuario haya forzado
   claro) y por data-theme=dark del botón. */
:root{
  --paper:#F6F9F7;
  --surface:#FFFFFF;
  --surface-2:#EFF4F1;
  --ink:#131E1A;
  --ink-2:#46564F;
  --ink-3:#6E7F78;
  --line:#DCE5E0;
  --line-2:#C3D1CA;
  --accent:#12795A;
  --accent-ink:#0C5B44;
  --accent-soft:#E3EFEA;
  --clay:#AB5647;
  --clay-soft:#F3E6E3;
  --shadow:0 1px 2px rgba(19,30,26,.05);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --paper:#0F1614;
    --surface:#16201D;
    --surface-2:#1C2724;
    --ink:#E6EEEA;
    --ink-2:#AEBDB7;
    --ink-3:#84968E;
    --line:#2A3833;
    --line-2:#3A4A44;
    --accent:#4FC49B;
    --accent-ink:#7ADCB9;
    --accent-soft:#16302A;
    --clay:#D9907F;
    --clay-soft:#331F1B;
    --shadow:none;
  }
}
:root[data-theme=dark]{
  --paper:#0F1614;
  --surface:#16201D;
  --surface-2:#1C2724;
  --ink:#E6EEEA;
  --ink-2:#AEBDB7;
  --ink-3:#84968E;
  --line:#2A3833;
  --line-2:#3A4A44;
  --accent:#4FC49B;
  --accent-ink:#7ADCB9;
  --accent-soft:#16302A;
  --clay:#D9907F;
  --clay-soft:#331F1B;
  --shadow:none;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{margin:0;line-height:1.18;letter-spacing:-.015em;font-weight:600}
p{margin:0}
code{
  font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.88em;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:3px;
  padding:.05em .3em;
  white-space:nowrap;
}
a{color:var(--accent-ink);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

.wrap{max-width:74rem;margin-inline:auto;padding-inline:clamp(1.15rem,4.5vw,3.25rem)}

.skip{
  position:absolute;left:-9999px;top:0;z-index:20;
  background:var(--surface);color:var(--ink);padding:.6rem 1rem;border:1px solid var(--line-2);
}
.skip:focus{left:.75rem;top:.75rem}

/* ── Cabecera ─────────────────────────────────────────── */
.site-head{
  position:sticky;top:0;z-index:10;
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:1.5rem;min-height:62px}
.brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);flex:0 0 auto}
.brand-mark{width:26px;height:26px;color:var(--accent)}
.brand-text{font-weight:600;letter-spacing:-.02em;font-size:1.05rem}
.nav{display:flex;gap:1.35rem;margin-left:auto;font-size:.92rem}
.nav a{color:var(--ink-2);text-decoration:none}
.nav a:hover{color:var(--ink);text-decoration:underline}
.head-tools{display:flex;align-items:center;gap:.75rem;flex:0 0 auto}
.lang{display:flex;align-items:center;gap:.3rem;font-family:"IBM Plex Mono",monospace;font-size:.78rem}
.lang button{
  background:none;border:0;padding:.2rem .15rem;cursor:pointer;
  color:var(--ink-3);font:inherit;letter-spacing:.04em;
}
.lang button[aria-pressed=true]{color:var(--ink);border-bottom:1.5px solid var(--accent)}
.lang-sep{color:var(--line-2)}
.icon-btn{
  display:grid;place-items:center;width:32px;height:32px;cursor:pointer;
  background:var(--surface);border:1px solid var(--line);border-radius:4px;color:var(--ink-2);
}
.icon-btn svg{width:16px;height:16px}
.icon-btn:hover{color:var(--ink);border-color:var(--line-2)}

/* En móvil la navegación pasa a una segunda fila deslizable: esconderla
   dejaba la web sin índice justo donde más cuesta recorrerla. */
@media (max-width:860px){
  .head-inner{flex-wrap:wrap;gap:.75rem 1rem;padding-bottom:.35rem}
  .head-tools{margin-left:auto}
  .nav{
    order:3;width:100%;margin-left:0;gap:1.15rem;font-size:.86rem;
    overflow-x:auto;white-space:nowrap;scrollbar-width:none;padding-bottom:.3rem;
  }
  .nav::-webkit-scrollbar{display:none}
}

/* ── Secciones ────────────────────────────────────────── */
section{padding-block:clamp(3.5rem,8vw,6rem)}
.band{background:var(--surface);border-block:1px solid var(--line)}
.section-label{
  font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--accent);margin-bottom:.85rem;
}
.section-title{font-size:clamp(1.6rem,3.2vw,2.15rem);max-width:22ch}
.section-intro{
  font-family:"IBM Plex Serif",Georgia,serif;font-size:1.08rem;color:var(--ink-2);
  max-width:66ch;margin-top:1rem;
}

/* ── Héroe ────────────────────────────────────────────── */
.hero{padding-top:clamp(3rem,7vw,5.5rem);padding-bottom:clamp(3rem,7vw,5rem)}
.eyebrow{
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;letter-spacing:.11em;
  text-transform:uppercase;color:var(--ink-3);
}
.hero h1{font-size:clamp(2.1rem,6vw,3.5rem);max-width:19ch;margin-top:1.1rem}
.muted-title{color:var(--ink-3)}
.lede{
  font-family:"IBM Plex Serif",Georgia,serif;font-size:clamp(1.08rem,2vw,1.24rem);
  line-height:1.62;color:var(--ink-2);max-width:64ch;margin-top:1.5rem;
}
.pillars{
  list-style:none;margin:3rem 0 0;padding:0;
  display:grid;gap:0;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line-2);
}
.pillars li{padding:1.5rem 1.6rem 1.6rem 0;border-right:1px solid var(--line)}
.pillars li:last-child{border-right:0;padding-right:0}
.pillars li+li{padding-left:1.6rem}
.pillar-n{
  font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:var(--accent);
  letter-spacing:.08em;margin-bottom:.6rem;
}
.pillars h2{font-size:1.06rem}
.pillars p:last-child{color:var(--ink-2);font-size:.95rem;margin-top:.5rem}
@media (max-width:760px){
  .pillars{grid-template-columns:1fr}
  .pillars li,.pillars li+li{padding:1.25rem 0;border-right:0;border-bottom:1px solid var(--line)}
  .pillars li:last-child{border-bottom:0}
}
.hero-note{
  margin-top:2.5rem;padding-left:1.1rem;border-left:2px solid var(--accent);
  color:var(--ink-2);max-width:62ch;font-size:.97rem;
}

/* ── Pasos ────────────────────────────────────────────── */
.steps{list-style:none;margin:2.75rem 0 0;padding:0;display:grid;gap:0;grid-template-columns:repeat(2,1fr)}
.steps li{padding:1.6rem 2rem 1.8rem 0;border-top:1px solid var(--line)}
.steps li:nth-child(even){padding-left:2rem;border-left:1px solid var(--line)}
.step-n{
  font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:var(--ink-3);
  letter-spacing:.08em;margin-bottom:.55rem;
}
.steps h3{font-size:1.1rem}
.steps p:last-child{margin-top:.6rem;color:var(--ink-2);font-size:.96rem;max-width:52ch}
@media (max-width:760px){
  .steps{grid-template-columns:1fr}
  .steps li,.steps li:nth-child(even){padding:1.35rem 0;border-left:0}
}

/* ── Alcance sí / no ──────────────────────────────────── */
.scope-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-top:2.75rem}
.scope-col{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1.5rem 1.6rem 1.7rem}
.band .scope-col{background:var(--paper)}
.scope-head{display:flex;align-items:center;gap:.6rem;font-weight:600;margin-bottom:1.1rem}
.tag{
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;
  padding:.18rem .45rem;border-radius:3px;
}
.tag-yes{background:var(--accent-soft);color:var(--accent-ink);border:1px solid var(--accent)}
.tag-no{background:var(--clay-soft);color:var(--clay);border:1px solid var(--clay)}
.scope-col ul{list-style:none;margin:0;padding:0;display:grid;gap:.95rem}
.scope-col li{display:flex;gap:.7rem;font-size:.96rem;color:var(--ink-2);line-height:1.55}
.ico{width:19px;height:19px;flex:0 0 19px;margin-top:.18rem}
.scope-yes .ico{color:var(--accent)}
.scope-no .ico{color:var(--clay)}
@media (max-width:760px){.scope-grid{grid-template-columns:1fr}}
.closing-note{
  margin-top:2rem;font-family:"IBM Plex Serif",Georgia,serif;font-size:1.05rem;
  max-width:62ch;color:var(--ink);
}

/* ── Tabla comparativa ────────────────────────────────── */
.table-scroll{overflow-x:auto;margin-top:2.5rem;border:1px solid var(--line);border-radius:6px;background:var(--paper)}
.compare{border-collapse:collapse;width:100%;min-width:640px;font-size:.94rem}
.compare th,.compare td{text-align:left;padding:.95rem 1.1rem;border-bottom:1px solid var(--line);vertical-align:top}
.compare thead th{
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-3);font-weight:500;background:var(--surface-2);border-bottom:1px solid var(--line-2);
}
.compare .th-no{color:var(--clay)}
.compare .th-yes{color:var(--accent-ink)}
.compare tbody th{font-weight:600;width:8.5rem;color:var(--ink)}
.compare tbody td:first-of-type{color:var(--ink-2)}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0}

/* ── Tarjetas de artículos ────────────────────────────── */
.cards{list-style:none;margin:2.75rem 0 0;padding:0;display:grid;gap:1.25rem;grid-template-columns:repeat(2,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1.4rem 1.5rem 1.5rem;box-shadow:var(--shadow)}
.band .card{background:var(--paper)}
.card-tag{
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:.75rem;
}
.card h3{font-family:"IBM Plex Serif",Georgia,serif;font-size:1.14rem;font-weight:500;line-height:1.32}
.card p:last-child{margin-top:.7rem;color:var(--ink-2);font-size:.94rem}
@media (max-width:760px){.cards{grid-template-columns:1fr}}

/* ── Hueco de casos ───────────────────────────────────── */
.gap-box{
  border:1px dashed var(--line-2);border-radius:6px;padding:1.75rem 1.9rem;
  max-width:70ch;background:var(--paper);
}
.gap-text{font-family:"IBM Plex Serif",Georgia,serif;color:var(--ink-2);font-size:1.02rem}

/* ── Contacto ─────────────────────────────────────────── */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:2.5rem;margin-top:2.75rem;align-items:start}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr;gap:1.75rem}}
.sub{font-size:1.05rem;margin-bottom:1rem}
.plain{list-style:none;margin:0;padding:0;display:grid;gap:.8rem}
.plain li{
  padding-left:1.1rem;position:relative;color:var(--ink-2);font-size:.96rem;max-width:56ch;
}
.plain li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:1px;background:var(--line-2)}
.warn{background:var(--clay-soft);border:1px solid var(--clay);border-radius:6px;padding:1.35rem 1.5rem}
.warn-head{display:flex;align-items:center;gap:.55rem;font-weight:600;color:var(--clay);margin-bottom:.7rem}
.warn .ico{color:var(--clay);margin-top:0}
.warn p:last-child{font-size:.94rem;color:var(--ink-2);line-height:1.6}
.mail{
  margin-top:2.5rem;display:flex;flex-wrap:wrap;align-items:baseline;gap:.7rem;
  font-family:"IBM Plex Mono",monospace;font-size:1rem;
}
.mail-label{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.ph,.ph-block{
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.06em;
  color:var(--ink-3);border:1px dashed var(--line-2);border-radius:3px;padding:.15rem .45rem;
}
.ph-block{display:inline-block;letter-spacing:0;font-size:.78rem;padding:.5rem .7rem;line-height:1.45}

/* ── Pie ──────────────────────────────────────────────── */
.site-foot{border-top:1px solid var(--line);background:var(--surface);padding-top:2.5rem}
.foot-inner{display:flex;flex-wrap:wrap;gap:2rem;justify-content:space-between}
.foot-brand{font-weight:600;letter-spacing:-.02em}
.foot-claim{color:var(--ink-2);font-size:.92rem;max-width:38ch;margin-top:.35rem}
.foot-links{display:grid;gap:.6rem;align-content:start}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;
  margin-top:2.5rem;padding-top:1.2rem;padding-bottom:1.8rem;
  border-top:1px solid var(--line);color:var(--ink-3);font-size:.82rem;
}


/* ── Artículos ────────────────────────────────────────── */
.article{padding-block:clamp(2.5rem,6vw,4.25rem)}
.article .wrap{max-width:52rem}
.back{
  font-family:"IBM Plex Mono",monospace;font-size:.78rem;color:var(--ink-3);
  text-decoration:none;
}
.back:hover{color:var(--ink)}
.art-head{border-bottom:1px solid var(--line);padding-bottom:1.9rem;margin-bottom:2.4rem}
.article h1{font-size:clamp(1.8rem,4.5vw,2.55rem);max-width:24ch;margin-top:.9rem}
.art-lede{
  font-family:"IBM Plex Serif",Georgia,serif;font-size:clamp(1.05rem,2vw,1.2rem);
  line-height:1.6;color:var(--ink-2);max-width:62ch;margin-top:1.3rem;
}
.art-meta{
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-3);margin-top:1.5rem;
}
.prose{font-family:"IBM Plex Serif",Georgia,serif;font-size:1.05rem;line-height:1.68;max-width:68ch}
.prose h2{
  font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:1.22rem;
  margin:2.7rem 0 .9rem;
}
.prose h3{font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:1.02rem;margin:1.9rem 0 .6rem}
.prose p+p,.prose ul+p,.prose p+ul,.prose ol+p{margin-top:1.1rem}
.prose ul,.prose ol{margin:1.1rem 0;padding-left:1.3rem;display:grid;gap:.55rem}
.prose li{padding-left:.2rem}
.prose li::marker{color:var(--ink-3)}
.prose strong{font-weight:600}
.prose em{color:var(--ink-2)}
.callout{
  border-left:2px solid var(--accent);padding:.15rem 0 .15rem 1.15rem;margin:1.9rem 0;
  font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:.96rem;line-height:1.6;color:var(--ink-2);
}
.callout-warn{border-color:var(--clay)}
.figures{
  margin:1.9rem 0;border:1px solid var(--line);border-radius:6px;overflow-x:auto;background:var(--surface);
}
.figures table{border-collapse:collapse;width:100%;min-width:34rem;font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:.9rem}
.figures th,.figures td{text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--line);vertical-align:top}
.figures thead th{
  font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink-3);font-weight:500;background:var(--surface-2);
}
.figures td:last-child,.figures th:last-child{font-family:"IBM Plex Mono",monospace;white-space:nowrap}
.figures tbody tr:last-child th,.figures tbody tr:last-child td{border-bottom:0}
.art-foot{margin-top:3.25rem;padding-top:1.6rem;border-top:1px solid var(--line)}
.art-foot p{color:var(--ink-2);font-size:.95rem;max-width:60ch}
.art-foot .mail{margin-top:1.2rem}

/* Tarjetas de artículo que ya son enlaces */
a.card{display:block;text-decoration:none;color:inherit}
a.card:hover{border-color:var(--line-2)}
a.card:hover h3{text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:3px}