/* ===== Paleta · modo claro por defecto, oscuro automático (26→28/09/2026) ===== */
:root{
  color-scheme:light dark;
  --ground:#E7E9E8;--surface:#F2F3F2;--surface2:#DCE0DF;
  --line:#C9CFCE;--line-strong:#737D83;
  --ink:#12171B;--muted:#515A62;--faint:#58626A;
  --ia:#14524E;--ia-soft:rgba(20,82,78,0.1);--on-ia:#FFFFFF;
  --vc:#735427;--vc-soft:rgba(115,84,39,0.1);--on-vc:#FFFFFF;
  --warn:#7F5500;--warn-soft:rgba(127,85,0,0.1);
  --ground-glass:rgba(231,233,232,.92);
  --logo-ink:#12171B;--lead-weight:300;
  --chart-bar:#5E8F8A;--chart-track:#A9B3B2;
  --accent:var(--ia);--accent-soft:var(--ia-soft);--on-accent:var(--on-ia);
  --sans:"Archivo","Helvetica Neue",Arial,sans-serif;
  --serif:"Spectral",Georgia,"Times New Roman",serif;
  --w:1120px;--read:66ch;
}
@media (prefers-color-scheme:dark){
  :root{
  --ground:#0F1315;--surface:#161B1E;--surface2:#1B2124;
  --line:#263034;--line-strong:#667277;
  --ink:#E4E8E7;--muted:#A3ADB1;--faint:#838D92;
  --ia:#6FB3AB;--ia-soft:rgba(111,179,171,0.12);--on-ia:#0C1112;
  --vc:#C9AE82;--vc-soft:rgba(201,174,130,0.12);--on-vc:#0C1112;
  --warn:#E0B354;--warn-soft:rgba(224,179,84,0.12);
  --ground-glass:rgba(15,19,21,.92);
  --logo-ink:#E4E8E7;--lead-weight:400;
  --chart-bar:#4A726D;--chart-track:#3A454A;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--w);margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
h1,h2,h3{font-weight:600;line-height:1.15;text-wrap:balance;margin:0}
h1{font-size:clamp(2rem,4.6vw,3.3rem);letter-spacing:-.02em}
h2{font-size:clamp(1.45rem,2.6vw,1.95rem);letter-spacing:-.01em}
h3{font-size:1.1rem}
p{margin:0}
.lead{font-family:var(--serif);font-weight:var(--lead-weight);font-size:clamp(1.15rem,1.8vw,1.35rem);line-height:1.55;color:var(--ink);max-width:var(--read)}
.eyebrow{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600}
.muted{color:var(--muted)}
.prose{max-width:var(--read);display:grid;gap:1rem;color:var(--muted)}
.prose strong{color:var(--ink);font-weight:600}
sup{font-size:.7em;line-height:0}
sup a{color:var(--accent);text-decoration:none}

/* barra de prototipo */
.proto{background:var(--surface2);border-bottom:1px solid var(--line);font-size:.82rem;color:var(--muted)}
.proto .wrap{display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;align-items:center;padding-block:.55rem}
.proto b{color:var(--warn);font-weight:600}
.switch{display:inline-flex;align-items:center;gap:.5rem;cursor:pointer;color:var(--ink)}
.switch input{accent-color:var(--warn);width:16px;height:16px}

/* encabezado */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--ground-glass);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:64px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;font-weight:600;font-size:1.02rem;letter-spacing:-.01em;white-space:nowrap}
.brand svg{width:30px;height:auto;flex:none}
.brand span:last-child{color:var(--muted);font-weight:400}
nav.menu{display:flex;align-items:center;gap:1.4rem}
nav.menu a{text-decoration:none;color:var(--muted);font-size:.92rem;padding-block:.3rem;border-bottom:1px solid transparent}
nav.menu a:hover{color:var(--ink)}
nav.menu a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}
nav.menu a.btn,nav.menu a.btn:hover,nav.menu a.btn[aria-current="page"]{color:var(--on-accent);border-bottom:1px solid var(--accent);padding:.6rem .95rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font:600 .95rem/1 var(--sans);padding:.85rem 1.25rem;border-radius:3px;text-decoration:none;cursor:pointer;border:1px solid var(--accent);background:var(--accent);color:var(--on-accent);transition:filter .15s}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn.ghost:hover{border-color:var(--accent)}
.btn.sm{padding:.6rem .95rem;font-size:.88rem}
.menu-toggle{display:none;background:none;border:1px solid var(--line-strong);color:var(--ink);border-radius:3px;padding:.5rem .7rem;font:500 .9rem var(--sans);cursor:pointer}
@media (max-width:880px){
  nav.menu{display:none;position:absolute;left:0;right:0;top:100%;background:var(--ground);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:.5rem clamp(16px,4vw,40px) 1rem}
  nav.menu.open{display:flex}
  nav.menu a{padding:.8rem 0;border-bottom:1px solid var(--line)}
  nav.menu .btn{margin-top:.8rem}
  .menu-toggle{display:inline-block}
}

/* páginas */


section{padding-block:clamp(3rem,7vw,5.5rem);border-top:1px solid var(--line)}
section.first{border-top:0}
.sec-head{display:grid;gap:.8rem;margin-bottom:2.2rem;max-width:var(--read)}

/* hero */
.hero{padding-block:clamp(3rem,8vw,6rem) clamp(2.5rem,5vw,4rem)}
.hero .wrap{display:grid;gap:1.4rem}
.hero .actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:.6rem}
.rule{height:2px;width:72px;background:var(--accent)}

/* puertas del inicio */
.doors{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem}
@media (max-width:760px){.doors{grid-template-columns:1fr}}
.door{display:grid;grid-template-rows:auto auto 1fr auto;gap:1rem;padding:clamp(1.4rem,3vw,2.2rem);background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--c);text-decoration:none;border-radius:3px;transition:border-color .2s,background .2s}
.door:hover{background:var(--surface2);border-color:var(--c)}
.door h2{font-size:clamp(1.35rem,2.3vw,1.7rem)}
.door p{color:var(--muted);max-width:52ch}
.door .go{color:var(--c);font-weight:600;font-size:.95rem}
.door .tag{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--c);font-weight:600}

/* fundador */
.founder{display:grid;grid-template-columns:auto 1fr;gap:clamp(1.25rem,4vw,2.5rem);align-items:start}
@media (max-width:600px){.founder{grid-template-columns:1fr}}
.photo{width:148px;aspect-ratio:4/5;max-width:100%;background:var(--surface2);border:1px dashed var(--line);display:grid;place-items:center;color:var(--faint);font-size:.78rem;text-align:center;padding:.6rem;border-radius:3px}
.photo b{display:block;font-size:2rem;color:var(--muted);font-weight:500;margin-bottom:.3rem}

/* contacto simple */
.contact-line{display:flex;flex-wrap:wrap;gap:.6rem 1.8rem;font-size:1.05rem}
.contact-line span{user-select:all}
.copy{background:none;border:1px solid var(--line);color:var(--muted);font:500 .78rem var(--sans);padding:.25rem .55rem;border-radius:3px;cursor:pointer;margin-left:.4rem}
.copy:hover{color:var(--ink);border-color:var(--accent)}

/* listas de pasos */
.steps{display:grid;gap:0;counter-reset:s;max-width:820px}
.step{display:grid;grid-template-columns:3.2rem 1fr;gap:1rem;padding-block:1.3rem;border-top:1px solid var(--line)}
.step:last-child{border-bottom:1px solid var(--line)}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);font:500 1.05rem var(--sans);color:var(--accent);font-variant-numeric:tabular-nums;padding-top:.1rem}
.step h3{margin-bottom:.35rem}
.step p{color:var(--muted)}

.cols3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem}
@media (max-width:860px){.cols3{grid-template-columns:1fr}}
.point h3{margin-bottom:.45rem}
.point p{color:var(--muted)}

/* tabla de dimensiones */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:3px}
table{border-collapse:collapse;width:100%;font-size:.94rem}
th,td{text-align:left;vertical-align:top;padding:.95rem 1rem;border-bottom:1px solid var(--line)}
th{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);font-weight:600;background:var(--surface)}
tr:last-child td{border-bottom:0}
td:first-child{font-weight:600;white-space:nowrap}
td.ref{color:var(--accent);font-size:.86rem}
td{color:var(--muted)}
td:first-child{color:var(--ink)}
.dimcards{display:none;gap:.8rem}
.dimcard{background:var(--surface);border:1px solid var(--line);padding:1.1rem;border-radius:3px;display:grid;gap:.4rem}
.dimcard p{color:var(--muted)}
.dimcard small{color:var(--accent)}
@media (max-width:700px){.dim-table{display:none}.dimcards{display:grid}}

/* gráficos */
.figs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.25rem;margin-top:2.2rem}
@media (max-width:960px){.figs{grid-template-columns:1fr}}
figure{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:3px;padding:1.3rem;display:grid;gap:.9rem;align-content:start}
figure svg{width:100%;height:auto;display:block}
figcaption{font-size:.88rem;color:var(--muted)}
figcaption b{color:var(--ink);font-weight:600;display:block;margin-bottom:.2rem}
.example{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}

/* recuadro */
.callout{border:1px solid var(--accent);background:var(--accent-soft);padding:1.2rem 1.35rem;border-radius:3px;max-width:var(--read);font-weight:500}
.frameworks{display:grid;gap:1rem;max-width:var(--read);margin-bottom:1.8rem}
.fw{display:grid;grid-template-columns:10.5rem 1fr;gap:1rem;padding-bottom:1rem;border-bottom:1px solid var(--line)}
.fw b{color:var(--ink);font-weight:600}
.fw span{color:var(--muted)}
@media (max-width:560px){.fw{grid-template-columns:1fr;gap:.2rem}}

/* entregables */
.deliver{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 2.5rem;max-width:960px}
@media (max-width:700px){.deliver{grid-template-columns:1fr}}
.deliver div{padding-block:1rem;border-top:1px solid var(--line)}
.deliver b{display:block;margin-bottom:.2rem}
.deliver p{color:var(--muted);font-size:.95rem}

/* sectores */
.sectors{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
@media (max-width:900px){.sectors{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.sectors{grid-template-columns:1fr}}
.sector{background:var(--surface);border:1px solid var(--line);padding:1.3rem;border-radius:3px;display:grid;gap:.7rem;align-content:start}
.sector svg{width:34px;height:34px;color:var(--accent)}
.sector p{color:var(--muted);font-size:.95rem}

/* preguntas */
.faq{max-width:820px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:1.15rem 2.2rem 1.15rem 0;font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.2rem;top:1rem;font-weight:400;font-size:1.3rem;color:var(--accent)}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 0 1.3rem;color:var(--muted);max-width:var(--read);display:grid;gap:.6rem}
.faq .ans a{color:var(--accent)}

.notes{font-size:.8rem;color:var(--faint);max-width:var(--read);display:grid;gap:.35rem;margin-top:1.6rem;padding-top:1rem;border-top:1px solid var(--line)}
.notes a{color:var(--muted)}

/* cierre */
.cta-end{background:var(--surface);border-top:1px solid var(--line)}
.cta-end .wrap{display:grid;gap:1.1rem;justify-items:start}
.cta-end .small{font-size:.9rem;color:var(--muted)}

/* señales */
.signals{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem 2rem;max-width:960px}
@media (max-width:700px){.signals{grid-template-columns:1fr}}
.signals li{display:grid;grid-template-columns:1.5rem 1fr;gap:.6rem;padding:.9rem 0;border-top:1px solid var(--line);color:var(--muted)}
.signals li::before{content:"";width:15px;height:15px;border:1.5px solid var(--accent);border-radius:2px;margin-top:.3rem}
.problems{list-style:none;padding:0;margin:0;display:grid;gap:.55rem;max-width:var(--read)}
.problems li{padding-left:1.1rem;position:relative;color:var(--muted)}
.problems li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:1.5px;background:var(--accent)}

/* caso */
.case{background:var(--surface);border:1px solid var(--line);border-radius:3px;padding:clamp(1.4rem,3vw,2.2rem);display:grid;gap:1rem;max-width:880px}
.case .kicker{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600}
.case h3{font-size:1.25rem}
.case p{color:var(--muted)}
.case blockquote{margin:0;font-family:var(--serif);font-style:italic;font-weight:300;font-size:1.2rem;color:var(--ink);border-left:2px solid var(--accent);padding-left:1rem}

/* libro */
.book{display:grid;grid-template-columns:200px 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
@media (max-width:680px){.book{grid-template-columns:1fr}}
.cover{aspect-ratio:2/3;max-width:200px;width:100%;background:linear-gradient(160deg,#23201A,#15130F);border:1px solid #3A3326;border-radius:2px;padding:1.2rem;display:grid;align-content:space-between;box-shadow:0 18px 40px rgba(0,0,0,.35)}
.cover b{font-family:var(--serif);font-weight:400;font-size:1.3rem;line-height:1.2;color:#EDE3D1}
.cover span{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--vc)}

/* formularios */
form.f{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem 1.2rem;max-width:760px}
@media (max-width:620px){form.f{grid-template-columns:1fr}}
.field{display:grid;gap:.35rem}
.field.full{grid-column:1/-1}
label{font-size:.86rem;color:var(--muted);font-weight:500}
input[type=text],input[type=email],select,textarea{width:100%;font:400 1rem var(--sans);color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:3px;padding:.75rem .85rem}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
textarea{min-height:96px;resize:vertical}
.check{display:grid;grid-template-columns:auto 1fr;gap:.6rem;align-items:start;font-size:.88rem;color:var(--muted)}
.check input{margin-top:.25rem;accent-color:var(--accent)}
.check a{color:var(--accent)}
.sent{grid-column:1/-1;border:1px solid var(--accent);background:var(--accent-soft);padding:.9rem 1rem;border-radius:3px;font-size:.92rem}
.tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.6rem}
.tabs button{font:600 .92rem var(--sans);padding:.7rem 1rem;border-radius:3px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}
.tabs button[aria-selected="true"]{border-color:var(--tc);color:var(--ink);background:var(--surface)}

/* rúbrica */
.scale{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.5rem;margin-bottom:2.2rem}
@media (max-width:820px){.scale{grid-template-columns:1fr}}
.lvl{background:var(--surface);border:1px solid var(--line);border-radius:3px;padding:1rem;display:grid;gap:.4rem;align-content:start;position:relative}
.lvl .n{font:600 1.6rem var(--sans);color:var(--accent);font-variant-numeric:tabular-nums}
.lvl p{font-size:.88rem;color:var(--muted)}
.lvl.ceil{box-shadow:inset -3px 0 0 var(--warn)}
@media (max-width:820px){.lvl.ceil{box-shadow:inset 0 -3px 0 var(--warn)}}
.ceil-note{font-size:.84rem;color:var(--warn);margin:-1.4rem 0 2.2rem}
.rub-table td{font-size:.86rem;min-width:170px;white-space:normal}
.rub-table td:first-child{min-width:150px;white-space:normal}
.rub-table th.c3{box-shadow:inset -3px 0 0 var(--warn)}
.rub-acc{display:none}
@media (max-width:900px){.rub-table-wrap{display:none}.rub-acc{display:block}}
.rub-acc ol{margin:.2rem 0 0;padding-left:1.2rem;display:grid;gap:.5rem}
.rules{counter-reset:r;list-style:none;padding:0;margin:0;display:grid;gap:.9rem;max-width:var(--read)}
.rules li{display:grid;grid-template-columns:2rem 1fr;gap:.6rem;color:var(--muted)}
.rules li::before{counter-increment:r;content:counter(r);font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums}
.rules b{color:var(--ink)}

/* privacidad */
.legal{max-width:var(--read);display:grid;gap:1rem;color:var(--muted)}
.legal h2{font-size:1.2rem;color:var(--ink);margin-top:1.4rem}
.legal table td:first-child{white-space:normal}
.legal ul{margin:0;padding-left:1.2rem;display:grid;gap:.35rem}
.draft{border:1px solid var(--warn);background:var(--warn-soft);color:var(--ink);padding:1rem 1.2rem;border-radius:3px;font-size:.92rem}

/* notas de revisión */
.rev{display:none;border:1px dashed var(--warn);background:var(--warn-soft);color:var(--ink);font-size:.84rem;line-height:1.5;padding:.7rem .9rem;border-radius:3px;max-width:var(--read)}
.rev::before{content:"Pendiente · ";font-weight:700;color:var(--warn)}
.rev.conf::before{content:"Criterio del prototipo · "}
body.show-rev .rev{display:block}
body.show-rev .rev-inline{display:inline}
.rev-inline{display:none;color:var(--warn);font-size:.8rem;font-weight:600;margin-left:.35rem}
.stack{display:grid;gap:1.2rem}

/* pie */
footer{border-top:1px solid var(--line);padding-block:2.5rem 5.5rem;font-size:.88rem;color:var(--faint)}
footer .wrap{display:grid;gap:1.2rem}
footer .cols{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem 2rem}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--ink)}
footer nav{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem}
.fixed-cta{display:none}
@media (max-width:880px){
  .fixed-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;padding:.7rem 16px calc(.7rem + env(safe-area-inset-bottom,0px));background:var(--ground-glass);border-top:1px solid var(--line)}
  .fixed-cta .btn{width:100%}
}
body[data-practice="vc"]{--accent:var(--vc);--accent-soft:var(--vc-soft);--on-accent:var(--on-vc)}

/* dev: la barra de prototipo solo existe en localhost */
.proto{display:none}
html.dev .proto{display:block}

/* foto del fundador */
picture.photo{width:180px;aspect-ratio:4/5;padding:0;border:0;background:none;display:block;overflow:hidden;border-radius:3px}
picture.photo img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.92)}
/* [hidden] siempre gana (form.f usa display:grid y pisaba el atributo) */
[hidden]{display:none!important}

/* dictamen legal 26/09 */
.dev-only{display:none}
html.dev .dev-only{display:block;outline:1px dashed var(--warn);outline-offset:.6rem}
.legal-note{grid-column:1/-1;font-size:.78rem;line-height:1.5;color:var(--faint);margin:0}
.callout p{margin:0}

/* logo: se adapta al modo */
.lg-i{fill:var(--logo-ink)}
.lg-a{fill:var(--ia)}

/* selector de idioma */
nav.menu a.lang{font-size:.78rem;font-weight:600;letter-spacing:.08em;color:var(--faint);border:1px solid var(--line-strong);border-radius:3px;padding:.3rem .5rem}
nav.menu a.lang:hover{color:var(--ink)}