/* =====================================================================
   Almaviva — Blog (hub /blog/ y artículos /blog/<slug>/)
   ---------------------------------------------------------------------
   Lo usan SOLO las páginas que genera scripts/build-blog.py. Las tarjetas
   de artículo (.av-bcards) son un componente global y viven en site.css
   (también aparecen en el Home y en las páginas de proyecto).
   Lectura: 17 px en móvil / 18–19 px en escritorio, interlineado 1.7,
   columna de 68 caracteres. Colores del sistema Almaviva con contraste AA.
   ===================================================================== */

@font-face { font-family: 'Averta'; src: url('/assets/fonts/Averta-Light.woff2') format('woff2'); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: 'Averta'; src: url('/assets/fonts/Averta-Regular.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Averta'; src: url('/assets/fonts/Averta-Bold.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }

:root {
  --bl-navy: #0B1D3A;
  --bl-ink: #063C4A;          /* petróleo del logo: enlaces (11.3:1 sobre papel) */
  --bl-text: #2C3E50;         /* cuerpo (10.4:1) */
  --bl-muted: #5B6B7A;        /* fechas, pies de foto (5.2:1; el #6B7D8E no pasa AA) */
  --bl-gold: #C4985A;         /* solo acento: líneas, viñetas, progreso */
  --bl-gold-ink: #835A22;     /* dorado legible para texto (5.7:1) */
  --bl-paper: #FBF8F3;
  --bl-sand: #F3EDE3;
  --bl-line: rgba(11, 29, 58, 0.12);
  --bl-wa: #0C7A43;           /* verde WhatsApp accesible (blanco 5.4:1) */
  --bl-header: var(--av-header-h, 76px);
  --bl-measure: 38em;        /* ~70-75 caracteres por línea */
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: 'Averta', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--bl-text);
  background: var(--bl-paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--bl-ink); }
:focus-visible { outline: 2px solid var(--bl-gold-ink); outline-offset: 3px; border-radius: 2px; }

/* Barra de progreso de lectura (2 px, dorada) */
.bl-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 1100; pointer-events: none; }
.bl-progress span { display: block; height: 100%; background: var(--bl-gold); transform-origin: 0 50%; transform: scaleX(0); }
@media (prefers-reduced-motion: reduce) { .bl-progress { display: none; } }

/* ------------------------------------------------------------ artículo */
.bl-main { padding-top: calc(var(--bl-header) + 20px); }
.bl-article { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

.bl-crumbs ol { list-style: none; margin: 0 0 18px; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 0; font-size: 0.85rem; color: var(--bl-muted); }
.bl-crumbs li + li::before { content: "/"; margin: 0 8px; color: var(--bl-gold); }
.bl-crumbs a { color: var(--bl-muted); text-decoration: none; padding: 6px 0; }
.bl-crumbs a:hover { color: var(--bl-ink); text-decoration: underline; }

.bl-head { max-width: 860px; margin: 0 auto; }
.bl-cat { margin: 0 0 12px; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bl-gold-ink); }
.bl-title {
  margin: 0 0 16px; color: var(--bl-navy); font-weight: 700;
  font-size: clamp(1.9rem, 5.2vw, 2.9rem); line-height: 1.14; letter-spacing: -0.01em;
  text-wrap: balance;
}
.bl-dek { margin: 0 0 22px; font-size: clamp(1.08rem, 2.2vw, 1.28rem); line-height: 1.55; color: var(--bl-text); font-weight: 400; max-width: 62ch; }
.bl-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 0.9rem; color: var(--bl-muted); padding-bottom: 22px; }
.bl-meta-foto { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--bl-line); }
.bl-meta a { color: var(--bl-ink); font-weight: 700; text-decoration: none; }
.bl-meta a:hover { text-decoration: underline; }
.bl-meta-sep { color: var(--bl-gold); }

.bl-cover { margin: 0 auto 28px; max-width: 1100px; }
.bl-cover img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 14px; background: var(--bl-sand); }
.bl-cover figcaption { font-size: 0.82rem; color: var(--bl-muted); margin-top: 8px; }

.bl-layout { display: block; max-width: 760px; margin: 0 auto; }
.bl-aside { margin-bottom: 22px; }

/* Índice: plegable en móvil, columna fija en escritorio */
.bl-toc { border: 1px solid var(--bl-line); border-radius: 12px; background: #fff; }
.bl-toc summary {
  cursor: pointer; list-style: none; padding: 14px 16px; min-height: 48px;
  font-weight: 700; color: var(--bl-navy); display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.bl-toc summary::-webkit-details-marker { display: none; }
.bl-toc summary span { color: var(--bl-muted); font-weight: 400; margin-right: auto; }
.bl-toc summary::after { content: ""; width: 9px; height: 9px; border-right: 2px solid var(--bl-gold-ink); border-bottom: 2px solid var(--bl-gold-ink); transform: rotate(45deg); transition: transform .2s ease; margin-top: -4px; }
.bl-toc[open] summary::after { transform: rotate(-135deg); margin-top: 4px; }
.bl-toc ol { margin: 0; padding: 0 16px 14px 34px; }
.bl-toc li { margin: 2px 0; }
.bl-toc a { display: block; padding: 7px 0; color: var(--bl-text); text-decoration: none; font-size: 0.95rem; line-height: 1.35; }
.bl-toc a:hover, .bl-toc a[aria-current="true"] { color: var(--bl-ink); font-weight: 700; }

/* Cuerpo de lectura */
.bl-body { font-size: 1.0625rem; line-height: 1.72; color: var(--bl-text); }
.bl-body > * { max-width: var(--bl-measure); }
.bl-body p { margin: 0 0 1.1em; }
.bl-body h2 {
  color: var(--bl-navy); font-size: clamp(1.45rem, 3.4vw, 1.85rem); line-height: 1.22; font-weight: 700;
  margin: 2.2em 0 0.65em; scroll-margin-top: calc(var(--bl-header) + 16px); text-wrap: balance;
}
.bl-body h3 { color: var(--bl-navy); font-size: clamp(1.18rem, 2.6vw, 1.32rem); line-height: 1.3; margin: 1.7em 0 0.5em; scroll-margin-top: calc(var(--bl-header) + 16px); }
.bl-body a { color: var(--bl-ink); text-decoration: underline; text-decoration-color: rgba(6, 60, 74, 0.35); text-underline-offset: 3px; text-decoration-thickness: 1.5px; }
.bl-body a:hover { color: var(--bl-gold-ink); text-decoration-color: currentColor; }
.bl-body strong { color: var(--bl-navy); }
.bl-body ul, .bl-body ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.bl-body li { margin: 0.35em 0; padding-left: 0.2em; }
.bl-body ul li::marker { color: var(--bl-gold); }
.bl-body ol li::marker { color: var(--bl-gold-ink); font-weight: 700; }
.bl-body blockquote { margin: 1.6em 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--bl-gold); font-size: 1.12em; color: var(--bl-navy); }
.bl-body blockquote p { margin: 0; }

.bl-summary { background: #fff; border: 1px solid var(--bl-line); border-left: 4px solid var(--bl-gold); border-radius: 12px; padding: 18px 20px 6px; margin: 0 0 28px; }
.bl-summary-t { margin: 0 0 8px !important; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bl-gold-ink); }
.bl-summary ul { padding-left: 1.15em; }

.bl-fig { margin: 1.8em 0; }
.bl-fig img { width: 100%; border-radius: 12px; background: var(--bl-sand); }
.bl-fig figcaption, .bl-video figcaption { font-size: 0.85rem; line-height: 1.45; color: var(--bl-muted); margin-top: 8px; }
.bl-body > .bl-fig--ancho { max-width: none; }
.bl-video { margin: 1.8em 0; }

.bl-callout { border-radius: 12px; padding: 16px 18px 4px; margin: 1.6em 0; background: var(--bl-sand); }
.bl-callout-t { margin: 0 0 6px !important; font-weight: 700; font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--bl-gold-ink); }
.bl-callout--ojo { background: #FFF6E5; border-left: 4px solid #B7791F; }
.bl-callout--ojo .bl-callout-t { color: #8A5A12; }
.bl-callout--tip { background: #EAF4F1; border-left: 4px solid var(--bl-ink); }
.bl-callout--tip .bl-callout-t { color: var(--bl-ink); }
.bl-callout--dato { border-left: 4px solid var(--bl-gold); }

.bl-steps ol { counter-reset: paso; list-style: none; padding-left: 0; }
.bl-steps li { counter-increment: paso; position: relative; padding: 2px 0 10px 46px; margin: 0 0 6px; }
.bl-steps li::before {
  content: counter(paso); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%;
  background: var(--bl-navy); color: #fff; font-weight: 700; font-size: 0.9rem; display: grid; place-items: center;
}

.bl-table { overflow-x: auto; margin: 1.6em 0; border: 1px solid var(--bl-line); border-radius: 12px; background: #fff;
  background-image: linear-gradient(to right, #fff 30%, rgba(255,255,255,0)), linear-gradient(to right, rgba(255,255,255,0), #fff 70%),
    radial-gradient(farthest-side at 0 50%, rgba(11,29,58,.14), rgba(0,0,0,0)), radial-gradient(farthest-side at 100% 50%, rgba(11,29,58,.14), rgba(0,0,0,0));
  background-position: left center, right center, left center, right center; background-repeat: no-repeat;
  background-size: 40px 100%, 40px 100%, 14px 100%, 14px 100%; background-attachment: local, local, scroll, scroll; }
.bl-table table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: 0.95rem; line-height: 1.45; }
.bl-table th, .bl-table td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--bl-line); vertical-align: top; }
.bl-table thead th { background: var(--bl-navy); color: #fff; font-weight: 700; font-size: 0.85rem; }
.bl-table tbody th { color: var(--bl-navy); font-weight: 700; }
.bl-table tbody tr:last-child th, .bl-table tbody tr:last-child td { border-bottom: 0; }

/* Tarjeta de proyecto dentro del artículo */
.bl-proj { display: grid; grid-template-columns: 96px 1fr; gap: 16px; align-items: start; margin: 2em 0; padding: 16px; background: #fff; border: 1px solid var(--bl-line); border-radius: 14px; box-shadow: 0 8px 24px rgba(11, 29, 58, 0.06); }
.bl-proj img { width: 96px; height: 96px; object-fit: cover; border-radius: 10px; }
.bl-proj-body p { margin: 0 !important; }
.bl-proj-k { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bl-gold-ink); font-weight: 700; }
.bl-proj-n { font-size: 1.15rem; font-weight: 700; color: var(--bl-navy); margin: 2px 0 4px !important; }
.bl-proj-d { font-size: 0.95rem; line-height: 1.5; }
.bl-proj-cta { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 12px; align-items: center; }
.bl-body .bl-proj-ver { font-weight: 700; text-decoration: none; padding: 10px 0; }
.bl-body .bl-proj-wa, .bl-author-wa, .bl-final-btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 18px; border-radius: 999px;
  background: var(--bl-wa); color: #fff !important; font-weight: 700; text-decoration: none !important; font-size: 0.95rem;
}
.bl-body .bl-proj-wa:hover, .bl-author-wa:hover, .bl-final-btn:hover { background: #096a3a; }
@media (max-width: 420px) { .bl-proj { grid-template-columns: 1fr; } .bl-proj img { width: 100%; height: 140px; } }

/* FAQ */
.bl-faq details { border-bottom: 1px solid var(--bl-line); }
.bl-faq summary { cursor: pointer; list-style: none; padding: 16px 36px 16px 0; position: relative; font-weight: 700; color: var(--bl-navy); min-height: 48px; }
.bl-faq summary::-webkit-details-marker { display: none; }
.bl-faq summary::after { content: "+"; position: absolute; right: 6px; top: 12px; font-size: 1.5rem; color: var(--bl-gold-ink); font-weight: 400; }
.bl-faq details[open] summary::after { content: "–"; }
.bl-faq details > div { padding: 0 0 6px; }

/* Autor */
.bl-author { display: grid; grid-template-columns: 72px 1fr; gap: 16px; margin: 2.4em 0 1.6em; padding: 20px; background: #fff; border: 1px solid var(--bl-line); border-radius: 14px; }
.bl-author img { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; }
.bl-author p { margin: 0 !important; }
.bl-author-k { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--bl-gold-ink); font-weight: 700; }
.bl-author-n { font-size: 1.15rem; font-weight: 700; color: var(--bl-navy); }
.bl-author-c { font-size: 0.9rem; color: var(--bl-muted); margin-bottom: 8px !important; }
.bl-author-b { font-size: 0.97rem; line-height: 1.55; margin-bottom: 14px !important; }

.bl-sources { font-size: 0.92rem; line-height: 1.6; }
.bl-sources h2 { font-size: 1.15rem !important; margin-top: 1.6em !important; }
.bl-note { color: var(--bl-muted); font-size: 0.86rem; }

.bl-share { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 1.6em 0 0; padding-top: 18px; border-top: 1px solid var(--bl-line); font-size: 0.92rem; }
.bl-share a, .bl-share button {
  min-height: 44px; padding: 10px 16px; border-radius: 999px; border: 1px solid var(--bl-ink); background: transparent;
  color: var(--bl-ink); font: inherit; font-weight: 700; cursor: pointer; text-decoration: none;
}
.bl-share a:hover, .bl-share button:hover { background: var(--bl-ink); color: #fff; }

/* CTA final y relacionados */
.bl-final { background: var(--bl-navy); color: #fff; margin: 56px 0 0; padding: 48px 20px; }
.bl-final-in { max-width: 720px; margin: 0 auto; text-align: center; }
.bl-final-k { margin: 0 0 8px; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: #D4AD6E; }
.bl-final h2 { margin: 0 0 10px; font-size: clamp(1.6rem, 4vw, 2.2rem); line-height: 1.2; color: #fff; }
.bl-final p { margin: 0 auto 22px; max-width: 52ch; line-height: 1.6; color: rgba(255,255,255,.88); }
.bl-related { max-width: 1180px; margin: 0 auto; padding: 48px 20px 64px; }
.bl-related h2, .bl-block-t { margin: 0 0 20px; font-size: clamp(1.4rem, 3vw, 1.8rem); color: var(--bl-navy); }
.bl-related-all { margin: 22px 0 0; text-align: center; }
.bl-related-all a, .av-bcards-more a { font-weight: 700; color: var(--bl-ink); }

/* ------------------------------------------------------------------ hub */
.bl-hub { padding-top: calc(var(--bl-header) + 20px); }
.bl-hub-head, .bl-feat, .bl-block { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.bl-hub-t { margin: 0 0 12px; color: var(--bl-navy); font-size: clamp(2rem, 5.4vw, 3rem); line-height: 1.12; text-wrap: balance; max-width: 22ch; }
.bl-hub-sub { margin: 0 0 30px; font-size: clamp(1.02rem, 2vw, 1.18rem); line-height: 1.6; max-width: 64ch; }
.bl-feat { margin-bottom: 44px; }
.bl-feat-link { display: grid; gap: 18px; text-decoration: none; color: inherit; background: #fff; border: 1px solid var(--bl-line); border-radius: 16px; overflow: hidden; }
.bl-feat-img img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.bl-feat-body { display: grid; gap: 10px; padding: 0 20px 22px; align-content: center; }
.bl-feat-t { font-size: clamp(1.4rem, 3.2vw, 2rem); line-height: 1.2; font-weight: 700; color: var(--bl-navy); }
.bl-feat-x { font-size: 1.02rem; line-height: 1.6; color: var(--bl-text); }
.bl-feat-link:hover .bl-feat-t { color: var(--bl-ink); text-decoration: underline; text-underline-offset: 4px; }
.bl-block { margin-bottom: 48px; }
.bl-chips { display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 14px; margin: 0 -2px 6px; scrollbar-width: none; }
.bl-chips::-webkit-scrollbar { display: none; }
.bl-chip {
  flex: none; min-height: 44px; padding: 10px 16px; border-radius: 999px; border: 1px solid var(--bl-line); background: #fff;
  color: var(--bl-text); font: inherit; font-size: 0.92rem; cursor: pointer; white-space: nowrap;
}
.bl-chip:hover { border-color: var(--bl-ink); }
.bl-chip[aria-pressed="true"] { background: var(--bl-navy); border-color: var(--bl-navy); color: #fff; font-weight: 700; }
.bl-vacio { color: var(--bl-muted); }
.bl-hub .bl-final { margin-top: 0; }

/* ------------------------------------------------------------ escritorio */
@media (min-width: 760px) {
  .bl-article, .bl-related, .bl-hub-head, .bl-feat, .bl-block { padding-left: 32px; padding-right: 32px; }
  .bl-feat-link { grid-template-columns: 1.25fr 1fr; gap: 0; }
  .bl-feat-body { padding: 28px 32px; }
  .bl-feat-img img { height: 100%; }
}
@media (min-width: 1100px) {
  .bl-body { font-size: 1.1875rem; }
  .bl-layout { max-width: 1100px; display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 56px; }
  .bl-aside { margin: 0; }
  .bl-toc { position: sticky; top: calc(var(--bl-header) + 24px); border: 0; background: transparent; max-height: calc(100vh - var(--bl-header) - 48px); overflow: auto; }
  .bl-toc summary { padding: 0 0 10px; min-height: 0; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bl-gold-ink); }
  .bl-toc summary::after { display: none; }
  .bl-toc ol { padding: 0 0 0 32px; border-left: 1px solid var(--bl-line); }
  .bl-toc a { font-size: 0.9rem; padding: 6px 0; }
  .bl-toc a[aria-current="true"] { color: var(--bl-ink); }
  .bl-body > .bl-fig--ancho { margin-left: -40px; margin-right: -40px; }
}

@media print {
  .bl-progress, .bl-aside, .bl-share, .bl-final, .bl-related, .av-header, .av-footer, .av-wa-wrap, .av-mbar { display: none !important; }
  .bl-main { padding-top: 0; }
}