/* ============================================================================
   Volver a Vos — Blog / Cluster SEO "contacto cero"
   Estética editorial cálida (hereda del ebook, no del dark de la landing):
     Papel crema #FAF5EE · Tinta tierra #2D2A26 · Bordó #A04545 · Naranja #C97A4A
   Fuentes: Fraunces (display) + Inter (texto) — ya cargadas vía Google Fonts.
   Optimizado para lectura larga (medida ~68ch, 1.7 line-height) y YMYL.
   ============================================================================ */

:root {
  --paper:      #FAF5EE;
  --paper-2:    #F3EADB;
  --paper-3:    #EFE4D2;
  --ink:        #2D2A26;
  --ink-soft:   #5B554C;
  --ink-mute:   #8A8175;
  --bordo:      #A04545;
  --bordo-deep: #883A3A;
  --naranja:    #C97A4A;
  --line:       rgba(45,42,38,0.12);
  --line-2:     rgba(45,42,38,0.22);

  --serif:      "Fraunces", Georgia, "Times New Roman", serif;
  --sans:       "Inter", system-ui, -apple-system, sans-serif;

  --measure:    68ch;
  --maxw:       1140px;
  --pad-x:      clamp(1.4rem, 5vw, 3rem);
  --ease:       cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(1.02rem, 0.98rem + 0.3vw, 1.19rem);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--bordo); text-decoration: none; }
a:hover { color: var(--bordo-deep); text-decoration: underline; text-underline-offset: 3px; }
::selection { background: var(--bordo); color: var(--paper); }

/* ============ NAV ============ */
.blog-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem var(--pad-x);
  background: rgba(250,245,238,0.86);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.blog-nav-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.blog-nav-brand:hover { text-decoration: none; color: var(--bordo); }
.blog-nav-brand span { color: var(--ink-mute); font-weight: 400; font-size: 0.9rem; }
.blog-nav-cta {
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.5rem 1rem;
  border: 1px solid var(--bordo);
  border-radius: 999px;
  color: var(--bordo);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.blog-nav-cta:hover { background: var(--bordo); color: var(--paper); text-decoration: none; }

/* ============ LAYOUT ============ */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad-x); }
.article-wrap { max-width: calc(var(--measure) + 2 * var(--pad-x)); }

/* ============ ARTICLE HEADER ============ */
.article-head { padding: clamp(2.4rem, 6vw, 4.5rem) 0 1.6rem; }
.breadcrumb {
  font-size: 0.8rem;
  color: var(--ink-mute);
  letter-spacing: 0.02em;
  margin-bottom: 1.4rem;
}
.breadcrumb a { color: var(--ink-soft); }
.breadcrumb span { margin-inline: 0.4rem; opacity: 0.5; }

.kicker {
  font-family: var(--sans);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bordo);
  margin: 0 0 1rem;
}

.article-title {
  font-family: var(--serif);
  font-weight: 550;
  font-size: clamp(2rem, 1.3rem + 3.4vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
  text-wrap: balance;
}
.article-title em { font-style: italic; color: var(--bordo); font-variation-settings: "SOFT" 60; }

.article-lede {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0 0 1.8rem;
  max-width: 40ch;
  text-wrap: pretty;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--ink-mute);
}
.article-meta strong { color: var(--ink-soft); font-weight: 600; }
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-mute); opacity: 0.6; }
.article-meta a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 2px; }

/* ============ RESPUESTA RÁPIDA (featured snippet / AI Overview) ============ */
.answer-box {
  margin: 2rem 0;
  padding: 1.4rem 1.6rem;
  background: var(--paper-2);
  border-left: 3px solid var(--bordo);
  border-radius: 4px;
}
.answer-box p { margin: 0; }
.answer-box p + p { margin-top: 0.8rem; }
.answer-box .answer-label {
  display: block;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bordo);
  margin-bottom: 0.6rem;
}

/* ============ BODY PROSE ============ */
.prose { max-width: var(--measure); }
.prose > * + * { margin-top: 1.35em; }
.prose p { text-wrap: pretty; }

.prose h2 {
  font-family: var(--serif);
  font-weight: 550;
  font-size: clamp(1.5rem, 1.2rem + 1.3vw, 2.05rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin-top: 2.6em;
  margin-bottom: 0.2em;
  scroll-margin-top: 5rem;
}
.prose h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.45rem);
  line-height: 1.25;
  margin-top: 1.8em;
  scroll-margin-top: 5rem;
}
.prose strong { font-weight: 600; color: var(--ink); }
.prose em { font-style: italic; }
.prose a { text-decoration: underline; text-underline-offset: 2px; text-decoration-color: var(--line-2); }
.prose a:hover { text-decoration-color: var(--bordo); }

.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li + li { margin-top: 0.5em; }
.prose li::marker { color: var(--bordo); }

.prose blockquote {
  margin: 2rem 0;
  padding: 0.2rem 0 0.2rem 1.4rem;
  border-left: 3px solid var(--naranja);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.28rem;
  line-height: 1.45;
  color: var(--ink-soft);
}
.prose blockquote cite {
  display: block;
  margin-top: 0.6rem;
  font-family: var(--sans);
  font-style: normal;
  font-size: 0.85rem;
  color: var(--ink-mute);
}

/* Callout "esto tiene nombre" */
.callout {
  margin: 2rem 0;
  padding: 1.5rem 1.7rem;
  background: var(--paper-3);
  border-radius: 8px;
  border: 1px solid var(--line);
}
.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }
.callout .callout-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--bordo-deep);
  margin: 0 0 0.6rem;
}

/* ============ FAQ ============ */
.faq { margin: 3rem 0 1rem; max-width: var(--measure); }
.faq h2 { font-family: var(--serif); font-weight: 550; font-size: 1.7rem; margin-bottom: 1rem; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 0.4rem 0;
}
.faq summary {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 1.12rem;
  padding: 0.7rem 2rem 0.7rem 0;
  cursor: pointer;
  list-style: none;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0.2rem;
  top: 0.6rem;
  font-size: 1.4rem;
  color: var(--bordo);
  transition: transform .2s var(--ease);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .faq-body { padding: 0 0 1rem; color: var(--ink-soft); }
.faq .faq-body p:first-child { margin-top: 0; }

/* ============ CTA BLOCK ============ */
.cta-block {
  margin: 3.4rem 0;
  padding: clamp(1.8rem, 4vw, 2.8rem);
  background: linear-gradient(160deg, #241a16, #38211d);
  border-radius: 16px;
  color: var(--paper);
  text-align: center;
}
.cta-block h2 {
  font-family: var(--serif);
  font-weight: 550;
  font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.1rem);
  line-height: 1.15;
  margin: 0 0 0.7rem;
  color: var(--paper);
  text-wrap: balance;
}
.cta-block p { margin: 0 auto 1.6rem; max-width: 46ch; color: rgba(250,245,238,0.8); }
.cta-btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.02rem;
  padding: 0.9rem 1.8rem;
  background: var(--bordo);
  color: var(--paper);
  border-radius: 999px;
  transition: transform .2s var(--ease), background .2s var(--ease);
}
.cta-btn:hover { background: var(--bordo-deep); color: var(--paper); text-decoration: none; transform: translateY(-2px); }
.cta-sub { display: block; margin-top: 1rem; font-size: 0.82rem; color: rgba(250,245,238,0.6); }
.cta-sub a { color: rgba(250,245,238,0.85); text-decoration: underline; }

/* ============ RELATED (hub-and-spoke) ============ */
.related { margin: 3rem 0; }
.related h2 { font-family: var(--serif); font-weight: 550; font-size: 1.5rem; margin-bottom: 1.2rem; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.related-card {
  display: block;
  padding: 1.2rem 1.3rem;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.related-card:hover { border-color: var(--line-2); transform: translateY(-2px); text-decoration: none; }
.related-card .rc-kicker { font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bordo); font-weight: 600; }
.related-card .rc-title { font-family: var(--serif); font-weight: 500; font-size: 1.12rem; line-height: 1.25; margin: 0.5rem 0 0; color: var(--ink); }

/* ============ FOOTER ============ */
.blog-foot {
  margin-top: 4rem;
  padding: 2.4rem var(--pad-x) 3rem;
  border-top: 1px solid var(--line);
  background: var(--paper-2);
}
.blog-foot-inner { max-width: var(--maxw); margin-inline: auto; }
.blog-foot .foot-brand { font-family: var(--serif); font-weight: 600; font-size: 1.05rem; }
.blog-foot .foot-disclaimer {
  margin-top: 0.9rem;
  font-size: 0.85rem;
  color: var(--ink-mute);
  max-width: 62ch;
  line-height: 1.6;
}
.blog-foot .foot-disclaimer strong { color: var(--ink-soft); }
.blog-foot .foot-legal { margin-top: 1rem; font-size: 0.8rem; color: var(--ink-mute); }
.blog-foot a { color: var(--ink-soft); text-decoration: underline; }

/* ============ HUB (blog index) ============ */
.hub-head { padding: clamp(2.6rem, 7vw, 5rem) 0 2rem; text-align: center; }
.hub-head .article-title { margin-inline: auto; max-width: 16ch; }
.hub-head .article-lede { margin-inline: auto; max-width: 48ch; text-align: center; }

.hub-pillar {
  display: grid;
  gap: 1.2rem;
  padding: 1.8rem;
  background: linear-gradient(160deg, #241a16, #38211d);
  border-radius: 16px;
  color: var(--paper);
  margin-bottom: 2.4rem;
}
.hub-pillar .rc-kicker { color: var(--naranja); }
.hub-pillar h2 { font-family: var(--serif); font-weight: 550; font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.2rem); line-height: 1.12; margin: 0.4rem 0 0.6rem; color: var(--paper); }
.hub-pillar p { margin: 0; color: rgba(250,245,238,0.8); max-width: 56ch; }
.hub-pillar a.cta-btn { justify-self: start; margin-top: 0.4rem; }

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
  padding-bottom: 3rem;
}
.hub-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.6rem;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.hub-card:hover { border-color: var(--bordo); transform: translateY(-3px); text-decoration: none; }
.hub-card .rc-kicker { font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bordo); font-weight: 600; }
.hub-card h3 { font-family: var(--serif); font-weight: 500; font-size: 1.3rem; line-height: 1.2; margin: 0.6rem 0 0.5rem; color: var(--ink); }
.hub-card p { margin: 0; font-size: 0.95rem; color: var(--ink-soft); }
.hub-card .rc-read { margin-top: auto; padding-top: 1rem; font-size: 0.82rem; color: var(--bordo); font-weight: 600; }