/* Gran Comercio — tema del blog.
   Mismo sistema neumórfico de la landing (index.html), extraído a hoja compartida
   porque aquí sí hay muchas páginas. Si cambia la paleta de la landing, cambia aquí. */
:root{
  --bg:#e8ebf2;
  --bg-2:#e2e6ee;
  --ink:#2f3747;
  --body:#6b7688;
  --muted:#8b95a7;
  --muted-2:#a4adbd;
  --accent:#5d6ee0;
  --accent-2:#8a7ce8;
  --sh-d:#c2c7d4;
  --sh-l:#ffffff;
  --raised:6px 6px 14px var(--sh-d),-6px -6px 14px var(--sh-l);
  --raised-sm:4px 4px 9px var(--sh-d),-4px -4px 9px var(--sh-l);
  --inset:inset 4px 4px 9px var(--sh-d),inset -4px -4px 9px var(--sh-l);
  --sans:'Poppins',-apple-system,BlinkMacSystemFont,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 1.5rem}
.wrap.narrow{max-width:760px}

/* Nav — idéntico a la landing */
nav{position:fixed;top:0;width:100%;z-index:100;padding:.9rem 1.5rem;display:flex;justify-content:space-between;align-items:center;background:var(--bg);box-shadow:0 6px 18px rgba(163,177,198,.35)}
.nav-logo{font-weight:700;font-size:1.02rem;letter-spacing:-.01em;color:var(--ink)}
.nav-logo .sl{color:var(--accent)}
.nav-links{display:flex;gap:1.3rem;align-items:center}
.nav-links a{color:var(--body);font-size:.85rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--accent)}
.nav-links a.on{color:var(--accent);font-weight:600}
.nav-cta{color:#fff !important;background:var(--accent);padding:.5rem 1.1rem;border-radius:12px;font-weight:600;font-size:.82rem;box-shadow:var(--raised-sm)}
.nav-cta:hover{box-shadow:var(--inset)}
.nav-right{display:flex;gap:1rem;align-items:center}
.lang{display:inline-flex;border-radius:11px;overflow:hidden;font-size:.74rem;font-weight:600;box-shadow:var(--inset);padding:3px}
.lang a{padding:.28rem .55rem;color:var(--muted);border-radius:8px}
.lang a.active{background:var(--bg);color:var(--accent);box-shadow:var(--raised-sm)}
@media(max-width:760px){nav{padding:.7rem 1rem}.nav-links a:not(.nav-cta){display:none}.nav-logo{font-size:.94rem}.nav-right{gap:.65rem}}

/* Index bar */
.indexbar{margin-top:60px;font-size:.7rem;letter-spacing:.08em;color:var(--muted-2);font-weight:500}
.indexbar .wrap{display:flex;justify-content:space-between;gap:1rem;padding-top:1.4rem;padding-bottom:.2rem}
@media(max-width:620px){.indexbar .wrap span:last-child{display:none}}

/* Cabeceras */
header.head{padding:2.6rem 0 1.4rem}
.section-label{font-size:.7rem;letter-spacing:.11em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:.75rem}
h1{font-size:clamp(2rem,4.4vw,3rem);line-height:1.14;font-weight:700;letter-spacing:-.03em;max-width:24ch;text-shadow:1px 1px 2px var(--sh-l)}
h1 .acc{color:var(--accent)}
.lead{font-size:clamp(1rem,1.6vw,1.1rem);color:var(--body);max-width:58ch;margin-top:1.2rem}

/* Filtros por tema */
.topics{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.8rem}
.topic{font-size:.75rem;font-weight:600;color:var(--body);padding:.45rem .95rem;border-radius:999px;background:var(--bg);box-shadow:var(--raised-sm);cursor:pointer;border:none;font-family:inherit;transition:box-shadow .25s,color .25s}
.topic:hover{color:var(--accent)}
.topic.on{box-shadow:var(--inset);color:var(--accent)}

/* Listado */
section{padding:2.6rem 0 4.2rem}
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
@media(max-width:900px){.posts{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.posts{grid-template-columns:1fr}}
.post-card{display:flex;flex-direction:column;padding:1.7rem 1.5rem;border-radius:20px;background:var(--bg);box-shadow:var(--raised);transition:box-shadow .3s}
.post-card:hover{box-shadow:var(--inset)}
.post-card .meta{font-size:.7rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:500;margin-bottom:.8rem}
.post-card .meta b{color:var(--accent);font-weight:700}
.post-card h2{font-size:1.12rem;font-weight:600;line-height:1.32;letter-spacing:-.015em;margin-bottom:.55rem}
.post-card p{color:var(--body);font-size:.88rem;flex:1}
.post-card .more{margin-top:1.1rem;font-size:.8rem;font-weight:600;color:var(--accent)}
.post-card.feat{grid-column:1/-1}
@media(min-width:900px){
  .post-card.feat{flex-direction:row;gap:2.2rem;align-items:center;padding:2.2rem 2rem}
  .post-card.feat .side{flex:0 0 34%}
  .post-card.feat h2{font-size:1.65rem;line-height:1.22}
  .post-card.feat p{font-size:.95rem}
}
.feat-flag{font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:.6rem}
.empty{padding:2.4rem;border-radius:20px;background:var(--bg);box-shadow:var(--inset);color:var(--body);text-align:center;font-size:.92rem}
.empty[hidden]{display:none}

/* Artículo */
article.post{padding:0 0 1rem}
.crumb{font-size:.74rem;color:var(--muted);font-weight:500;margin-bottom:1.4rem}
.crumb a:hover{color:var(--accent)}
.post-head{padding:2.2rem 0 1.6rem}
.post-head h1{max-width:22ch}
.post-meta{display:flex;flex-wrap:wrap;gap:.5rem .9rem;align-items:center;font-size:.78rem;color:var(--muted);margin-top:1.4rem}
.post-meta .av{width:34px;height:34px;border-radius:50%;background:var(--bg);display:grid;place-items:center;color:var(--accent);font-weight:700;font-size:.72rem;box-shadow:var(--raised-sm)}
.post-meta b{color:var(--ink);font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.3rem}
.chip{font-size:.72rem;color:var(--body);padding:.35rem .75rem;border-radius:999px;background:var(--bg);box-shadow:var(--raised-sm);font-weight:500}

.prose{max-width:70ch;color:var(--body);font-size:1rem}
.prose>*+*{margin-top:1.15rem}
.prose h2{font-size:clamp(1.3rem,2.6vw,1.7rem);font-weight:700;letter-spacing:-.02em;line-height:1.25;color:var(--ink);margin-top:2.6rem;text-shadow:1px 1px 2px var(--sh-l)}
.prose h3{font-size:1.1rem;font-weight:600;color:var(--ink);margin-top:1.9rem}
/* el nav fijo no debe tapar el encabezado al llegar por deep link */
.prose h2,.prose h3,.prose h4{scroll-margin-top:5.5rem}
.prose h4{font-size:.98rem;font-weight:600;color:var(--ink);margin-top:1.5rem}
.prose a{color:var(--accent);font-weight:600}
.prose a:hover{text-decoration:underline}
.prose b,.prose strong{font-weight:600;color:var(--ink)}
.prose ul,.prose ol{padding-left:1.15rem;display:flex;flex-direction:column;gap:.5rem}
.prose li::marker{color:var(--accent)}
.prose blockquote{padding:1.3rem 1.5rem;border-radius:18px;background:var(--bg);box-shadow:var(--raised-sm);font-size:1.02rem;font-weight:500;color:var(--ink);letter-spacing:-.01em}
.prose blockquote p+p{margin-top:.7rem}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85em;color:var(--accent);background:var(--bg-2);padding:.12rem .4rem;border-radius:6px;box-shadow:var(--inset)}
.prose pre{padding:1.2rem 1.3rem;border-radius:16px;background:var(--bg);box-shadow:var(--inset);overflow-x:auto}
.prose pre code{background:none;box-shadow:none;padding:0;color:var(--ink);font-size:.82rem;line-height:1.65}
.prose img{display:block;width:100%;height:auto;border-radius:14px}
.prose figure{padding:10px;border-radius:18px;background:var(--bg);box-shadow:var(--inset)}
.prose figcaption{font-size:.78rem;color:var(--muted);text-align:center;padding:.7rem .5rem .2rem}
.prose hr{border:none;height:0;box-shadow:var(--inset);border-radius:999px;padding-top:4px;margin:2.2rem 0}
.prose .tablewrap{overflow-x:auto;border-radius:16px;background:var(--bg);box-shadow:var(--raised-sm);padding:.4rem}
/* min-width: en móvil la tabla se desplaza en horizontal en vez de exprimirse */
.prose table{border-collapse:collapse;width:100%;min-width:520px;font-size:.87rem}
.prose th,.prose td{text-align:left;padding:.75rem .9rem;vertical-align:top}
.prose th{font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.prose tbody tr+tr td{border-top:1px solid var(--sh-l)}
.prose td b{color:var(--ink)}

/* CTA + siguientes lecturas */
.cta-band{border-radius:26px;background:var(--bg);padding:2.6rem;text-align:center;box-shadow:var(--raised);margin-top:3.4rem}
.cta-band h2{font-size:clamp(1.4rem,3vw,1.9rem);font-weight:700;letter-spacing:-.025em;text-shadow:1px 1px 2px var(--sh-l)}
.cta-band p{color:var(--body);max-width:48ch;margin:.9rem auto 1.8rem;font-size:.98rem}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.85rem 1.5rem;border-radius:14px;font-size:.88rem;font-weight:600;cursor:pointer;border:none;transition:box-shadow .25s,transform .2s}
.btn-primary{background:var(--accent);color:#fff;box-shadow:5px 5px 12px rgba(93,110,224,.35),-5px -5px 12px var(--sh-l)}
.btn-primary:hover{box-shadow:inset 3px 3px 8px rgba(0,0,0,.2),inset -3px -3px 8px rgba(255,255,255,.15)}
.btn-ghost{background:var(--bg);color:var(--ink);box-shadow:var(--raised)}
.btn-ghost:hover{box-shadow:var(--inset)}
.btn svg{width:17px;height:17px}
.next{margin-top:3rem}
.next-label{font-size:.7rem;letter-spacing:.11em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:1.2rem}
.next-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.3rem}
@media(max-width:760px){.next-grid{grid-template-columns:1fr}}

/* Footer — idéntico a la landing */
footer{padding:3rem 0 2.2rem;color:var(--body);margin-top:1rem}
.foot{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;align-items:flex-start}
.foot .brand{max-width:32ch}
.foot .brand p{font-size:.85rem;margin-top:.7rem;color:var(--muted)}
.foot-links{display:flex;gap:2.6rem;flex-wrap:wrap}
.foot-col h5{font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.85rem;font-weight:700}
.foot-col a{display:block;color:var(--body);font-size:.87rem;margin-bottom:.55rem}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{margin-top:2.3rem;padding-top:1.5rem;font-size:.74rem;color:var(--muted-2);display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}