/* ============================================================
   SpindleLab — sistema v3 (traducción fiel del diseño Figma)
   Tipografía: Manrope · Paleta: papel/tinta/navy/dorado/petróleo
   ============================================================ */

:root{
  --paper:#F7F5F0;
  --ink:#131A22;
  --ink-70:rgba(19,26,34,.7);
  --ink-50:rgba(19,26,34,.5);
  --navy:#14171D; /* "versión en negro": las secciones oscuras usan negro tinta, no azul */
  --gold:#C9A227;
  --gold-2:#DCB52F;
  --teal:#0F766E;
  --white:#FFFFFF;
  --line:#E5E1D8;
  --paper-70:rgba(247,245,240,.7);
  --paper-25:rgba(247,245,240,.25);
  --sans:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --wrap:1200px;
  --r-card:10px;
  --r-pill:999px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:15px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
::selection{background:var(--gold);color:var(--navy)}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}

/* ---------- Utilidades tipográficas ---------- */
.eyebrow{
  font-size:11px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
}
.eyebrow.teal{color:var(--teal)}
.eyebrow.gold{color:var(--gold)}

/* ---------- Botones píldora ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  padding:14px 26px;border-radius:var(--r-pill);text-decoration:none;
  border:1.5px solid transparent;transition:background .2s,color .2s,border-color .2s,transform .15s;
}
.btn:active{transform:translateY(1px)}
.btn.gold{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.btn.gold:hover{background:var(--gold-2);border-color:var(--gold-2)}
.btn.outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn.outline:hover{background:var(--ink);color:var(--paper)}
.btn.small{padding:11px 20px;font-size:11px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;height:96px;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;
}
.site-header .wrap{width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-size:21px;font-weight:800;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}
.logo span{color:var(--gold)}
.nav-links{display:flex;align-items:center;gap:36px;list-style:none}
.nav-links a{
  text-decoration:none;color:var(--ink-70);
  font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  padding:6px 0;transition:color .2s;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a[aria-current="page"]{color:var(--ink);box-shadow:0 2px 0 var(--gold)}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:10px;margin-right:-10px}
.menu-btn .bars,.menu-btn .bars::before,.menu-btn .bars::after{
  display:block;width:22px;height:2px;background:var(--ink);position:relative;transition:transform .2s,opacity .2s;content:"";
}
.menu-btn .bars::before{position:absolute;top:-7px}
.menu-btn .bars::after{position:absolute;top:7px}
.menu-btn[aria-expanded="true"] .bars{transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] .bars::before{transform:rotate(-90deg) translateX(-7px)}
.menu-btn[aria-expanded="true"] .bars::after{opacity:0}

/* ---------- Hero ---------- */
.hero{padding:120px 0 96px;background:var(--paper)}
.hero .chip-kicker{
  display:inline-flex;padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(15,118,110,.08);border:1px solid rgba(15,118,110,.25);
  color:var(--teal);font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  margin-bottom:36px;
}
h1{
  font-size:clamp(44px,5.6vw,80px);font-weight:800;line-height:1.06;
  letter-spacing:-.025em;color:var(--ink);max-width:20ch;
}
h1 .ia{color:var(--teal)}
.hero .lead{
  margin:32px 0 40px;font-size:16px;line-height:1.7;color:var(--ink-70);max-width:52ch;
}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.hero .platforms{margin-top:56px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero .platforms .eyebrow{color:var(--ink-50)}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--white);
  font-size:12.5px;font-weight:700;color:var(--ink-70);
}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}

/* ---------- Banda dividida (chat IA) ---------- */
.split-band{display:grid;grid-template-columns:1fr 1fr;background:var(--navy);color:var(--paper)}
.split-copy{padding:72px 64px;display:flex;flex-direction:column;justify-content:center;gap:28px}
.split-copy h2{
  font-size:clamp(28px,3vw,40px);font-weight:800;letter-spacing:-.015em;line-height:1.15;color:var(--paper);max-width:16ch;
}
.chat{display:grid;gap:14px;max-width:480px}
.chat .q{
  justify-self:start;background:var(--teal);color:#EFFBF9;
  padding:12px 18px;border-radius:16px 16px 16px 4px;
  font-size:13.5px;font-weight:700;
}
.chat .a{
  background:rgba(247,245,240,.07);border:1px solid rgba(247,245,240,.14);
  padding:14px 18px;border-radius:4px 16px 16px 16px;
  font-size:13px;line-height:1.6;color:#C4CFDC;
}
.chat .a b{color:var(--gold);font-weight:800}
.split-copy .disclaimer{font-size:11px;color:rgba(247,245,240,.45);letter-spacing:.04em}
.split-doc{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;
  padding:56px 48px;background:linear-gradient(160deg,#1B1F27,#14171D);
}
.doc{
  background:var(--paper);border-radius:10px;max-width:430px;width:100%;
  padding:26px;box-shadow:0 30px 80px rgba(0,0,0,.5);position:relative;
}
.doc::before{content:"";position:absolute;top:0;left:26px;right:26px;height:3px;background:var(--gold)}
.doc-head{
  display:flex;justify-content:space-between;align-items:baseline;gap:10px;
  padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px;
}
.doc-head b{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--teal);text-transform:uppercase}
.doc-head span{font-size:11px;color:var(--ink-50);font-weight:700}
.doc ul{list-style:none;display:grid;gap:12px}
.doc li{display:flex;gap:10px;font-size:12.5px;line-height:1.55;color:var(--ink)}
.doc li::before{content:"";width:8px;height:8px;border-radius:50%;flex:none;margin-top:5px}
.doc li.crit::before{background:#B3402F}
.doc li.med::before{background:var(--gold)}
.doc li.ok::before{background:var(--teal)}
.doc li b{font-weight:800}
.doc-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:10px;
  font-size:10.5px;font-weight:800;color:var(--ink-50);letter-spacing:.1em;text-transform:uppercase;
}
.doc-foot b{color:var(--gold)}
.split-doc .caption{font-size:11.5px;color:var(--paper-70);letter-spacing:.04em}

/* ---------- Servicios ---------- */
.services{padding:104px 0;background:var(--paper)}
.sec-head{margin-bottom:52px;display:grid;gap:14px}
.sec-head h2{font-size:clamp(26px,2.6vw,34px);font-weight:800;letter-spacing:-.015em;color:var(--ink)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{
  position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:34px 30px 30px;display:flex;flex-direction:column;gap:14px;text-decoration:none;
  transition:transform .22s,box-shadow .22s;
}
.card::before{content:"";position:absolute;top:0;left:30px;right:30px;height:2px;background:var(--teal)}
.card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(14,42,71,.10)}
.card.featured{border-color:var(--teal);box-shadow:0 10px 30px rgba(15,118,110,.10)}
.card .tag{
  position:absolute;top:22px;right:22px;background:var(--gold);color:var(--ink);
  font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  padding:5px 12px;border-radius:var(--r-pill);
}
.card .icon{
  width:44px;height:44px;border-radius:10px;background:rgba(15,118,110,.08);
  display:flex;align-items:center;justify-content:center;color:var(--teal);
}
.card h3{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.card p{font-size:13.5px;line-height:1.65;color:var(--ink-70);flex:1}
.card .more{font-size:12.5px;font-weight:800;color:var(--teal)}
.card .more::after{content:" →";color:var(--gold)}

/* ---------- Banda de cifras ---------- */
.metrics{background:var(--navy);padding:64px 0}
.metrics .row{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.metric{padding-left:20px;border-left:1.5px solid var(--gold)}
.metric:first-child{padding-left:0;border-left:0}
.metric .value{
  font-size:clamp(36px,3.8vw,56px);font-weight:800;letter-spacing:-.02em;
  color:var(--gold);line-height:1.1;white-space:nowrap;
}
.metric .label{
  margin-top:10px;font-size:11px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--paper-70);max-width:24ch;
}

/* ---------- Método ---------- */
.method{background:var(--navy);padding:88px 0 104px;border-top:1px solid rgba(247,245,240,.10)}
.method .sec-head h2{color:var(--paper)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.step{border-top:1px solid var(--paper-25);padding-top:22px;display:grid;gap:10px}
.step .num{font-size:19px;font-weight:800;color:var(--gold)}
.step h3{font-size:15px;font-weight:800;color:var(--paper)}
.step p{font-size:13px;line-height:1.6;color:#AEB9C6}

/* ---------- CTA final ---------- */
.cta{padding:120px 0;background:var(--paper);text-align:center}
.cta .eyebrow{display:block;margin-bottom:20px}
.cta h2{
  font-size:clamp(30px,3.4vw,44px);font-weight:800;letter-spacing:-.02em;
  color:var(--ink);max-width:24ch;margin:0 auto 18px;
}
.cta p{font-size:15px;color:var(--ink-70);max-width:50ch;margin:0 auto 36px}
.cta .email{display:inline-block;margin-top:22px;font-size:13.5px;font-weight:800;color:var(--teal);text-decoration-color:var(--gold)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#8A94A3;padding:80px 0 36px}
.site-footer .wordmark{
  font-size:clamp(44px,5.5vw,80px);font-weight:800;letter-spacing:-.025em;
  color:var(--paper);margin-bottom:56px;
}
.site-footer .wordmark span{color:var(--gold)}
.site-footer .cols{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-bottom:64px}
.site-footer h4{
  color:var(--paper);font-size:11px;font-weight:800;letter-spacing:.16em;
  text-transform:uppercase;margin-bottom:18px;
}
.site-footer ul{list-style:none;display:grid;gap:10px}
.site-footer a{color:#8A94A3;text-decoration:none;font-size:13.5px;transition:color .2s}
.site-footer a:hover{color:var(--paper)}
.site-footer li{font-size:13.5px}
.site-footer .base{
  border-top:1px solid rgba(138,148,163,.22);padding-top:26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12px;
}
.site-footer .base nav{display:flex;gap:24px}

/* ---------- Páginas interiores ---------- */
.page-hero{padding:80px 0 64px;background:var(--paper);border-bottom:1px solid var(--line)}
.page-hero .crumbs{margin-bottom:26px}
.crumbs{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-50)}
.crumbs ol{list-style:none;display:flex;gap:10px;flex-wrap:wrap}
.crumbs li+li::before{content:"→";margin-right:10px;color:var(--gold)}
.crumbs a{color:var(--ink-50);text-decoration:none}
.crumbs a:hover{color:var(--ink);text-decoration:underline}
.page-hero h1{font-size:clamp(34px,4vw,56px);max-width:22ch}
.page-hero .lead{margin-top:22px;font-size:16px;line-height:1.7;color:var(--ink-70);max-width:58ch}
.page-hero .actions{margin-top:34px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.page-hero .note{font-size:12.5px;font-weight:700;color:var(--teal)}

.sec{padding:88px 0}
.sec.tight{padding:64px 0}
.sec.alt{background:#F0EDE6}
.duo{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start}

/* checklist */
.check-list{list-style:none;display:grid;gap:13px}
.check-list li{padding-left:30px;position:relative;font-size:14.5px;line-height:1.6;color:var(--ink)}
.check-list li::before{
  content:"";position:absolute;left:0;top:5px;width:15px;height:15px;
  border:1.5px solid var(--teal);border-radius:50%;
}
.check-list li::after{
  content:"";position:absolute;left:4.5px;top:9.5px;width:6px;height:6px;
  background:var(--gold);border-radius:50%;
}
.check-list li b{font-weight:800}

/* panel lateral */
.aside-panel{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 28px;display:grid;gap:16px;position:sticky;top:120px;
}
.aside-panel h3{font-size:15px;font-weight:800}
.aside-panel p{font-size:13.5px;color:var(--ink-70);line-height:1.6}
.aside-panel .fact{display:flex;justify-content:space-between;gap:12px;font-size:13px;border-top:1px solid var(--line);padding-top:12px}
.aside-panel .fact b{color:var(--navy);font-weight:800}

/* FAQ */
.faq{border-top:1px solid var(--line);display:grid}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;
  align-items:baseline;padding:20px 4px;font-weight:800;font-size:15px;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:400;color:var(--gold);flex:none;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-a{padding:0 4px 22px;color:var(--ink-70);font-size:14px;line-height:1.7;max-width:72ch}

/* banda navy reutilizable */
.band-navy{background:var(--navy);color:var(--paper);padding:88px 0}
.band-navy h2{font-size:clamp(26px,2.6vw,34px);font-weight:800;letter-spacing:-.015em;color:var(--paper)}
.band-navy p{color:#AEB9C6}

/* pasos expandidos (método) */
.step-rows{display:grid;gap:0;border-top:1px solid var(--line)}
.step-row{
  display:grid;grid-template-columns:90px 1fr 1fr;gap:40px;
  padding:40px 0;border-bottom:1px solid var(--line);align-items:start;
}
.step-row .num{font-size:26px;font-weight:800;color:var(--gold)}
.step-row h3{font-size:19px;font-weight:800;margin-bottom:10px}
.step-row p{font-size:14px;line-height:1.7;color:var(--ink-70)}
.step-row .facts{display:grid;gap:10px;font-size:13px}
.step-row .facts div{border-left:2px solid var(--teal);padding-left:14px}
.step-row .facts b{display:block;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--teal)}

/* blog */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.post-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 28px;display:flex;flex-direction:column;gap:12px;text-decoration:none;
  transition:transform .22s,box-shadow .22s;position:relative;
}
.post-card::before{content:"";position:absolute;top:0;left:28px;right:28px;height:2px;background:var(--gold)}
.post-card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(14,42,71,.10)}
.post-card .meta{font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--teal)}
.post-card h3{font-size:18.5px;font-weight:800;line-height:1.3;letter-spacing:-.01em}
.post-card p{font-size:13.5px;color:var(--ink-70);line-height:1.65;flex:1}
.post-card .more{font-size:12.5px;font-weight:800;color:var(--teal)}
.post-card .more::after{content:" →";color:var(--gold)}

/* artículo */
.article{padding:72px 0 96px}
.article .inner{max-width:740px;margin:0 auto}
.article h1{font-size:clamp(30px,3.6vw,44px);margin:16px 0 20px}
.article .byline{
  display:flex;gap:18px;flex-wrap:wrap;font-size:12px;font-weight:700;
  letter-spacing:.08em;text-transform:uppercase;color:var(--ink-50);
  padding-bottom:26px;margin-bottom:40px;border-bottom:1px solid var(--line);
}
.article .byline b{color:var(--teal)}
.prose>*+*{margin-top:20px}
.prose h2{font-size:clamp(22px,2.4vw,28px);font-weight:800;letter-spacing:-.015em;margin-top:48px}
.prose h3{font-size:18px;font-weight:800;margin-top:34px}
.prose p,.prose li{font-size:15.5px;line-height:1.75;color:#2A333E}
.prose ul,.prose ol{padding-left:22px;display:grid;gap:9px}
.prose strong{color:var(--ink);font-weight:800}
.prose a{color:var(--teal);font-weight:700;text-decoration-color:var(--gold)}
.prose blockquote{
  border-left:3px solid var(--gold);padding:4px 0 4px 22px;
  font-size:17px;font-weight:700;color:var(--navy);
}
.prose code{background:#ECE8DF;border-radius:4px;padding:2px 7px;font-size:13.5px}
.prose pre{background:var(--navy);color:#D6E2F0;border-radius:var(--r-card);padding:20px 22px;overflow-x:auto;font-size:13px;line-height:1.6}
.prose pre code{background:none;color:inherit;padding:0}
.prose table{width:100%;border-collapse:collapse;font-size:14px}
.prose th,.prose td{border:1px solid var(--line);padding:11px 13px;text-align:left;vertical-align:top}
.prose th{background:#F0EDE6;font-weight:800}
.prose .nota{
  background:#F0EDE6;border-left:3px solid var(--teal);border-radius:var(--r-card);
  padding:18px 22px;font-size:14px;
}

/* tabla comparativa servicios */
.compare{width:100%;border-collapse:collapse;font-size:14px;background:var(--white)}
.compare th,.compare td{border:1px solid var(--line);padding:14px 16px;text-align:left;vertical-align:top}
.compare thead th{background:var(--navy);color:var(--paper);font-weight:800;font-size:13px}
.compare td b{font-weight:800}

/* 404 */
.err{padding:140px 0;text-align:center}
.err .code{font-size:clamp(80px,12vw,140px);font-weight:800;color:var(--gold);line-height:1}
.err h1{margin:10px auto 16px}
.err p{color:var(--ink-70);margin-bottom:32px}

@media(max-width:1000px){
  .post-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .duo{grid-template-columns:1fr}
  .aside-panel{position:static}
  .step-row{grid-template-columns:1fr;gap:16px}
  .post-grid{grid-template-columns:1fr}
  .sec{padding:64px 0}
}

/* ---------- Animación de entrada ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none}}

/* ---------- Responsive ---------- */
@media(max-width:1000px){
  .cards{grid-template-columns:1fr 1fr}
  .metrics .row,.steps{grid-template-columns:1fr 1fr;row-gap:44px}
  .split-band{grid-template-columns:1fr}
  .split-photo{min-height:380px}
}
@media(max-width:680px){
  .hero{padding:72px 0 64px}
  .cards,.metrics .row,.steps,.site-footer .cols{grid-template-columns:1fr}
  .metric{padding-left:0;border-left:0}
  .split-copy{padding:56px 32px}
  .services,.cta{padding:72px 0}
  .nav-cta{display:none}
  .menu-btn{display:block}
  .nav-links{
    display:none;position:absolute;top:96px;left:0;right:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;padding:12px 32px 20px;
  }
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:13px 0;font-size:13px}
}